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学者姓名:郭瑾

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NCNT@La-PES composite membrane activates peroxymonosulfate for the degradation of HEDP and adsorptive recycling of phosphorous SCIE
期刊论文 | 2025 , 365 | SEPARATION AND PURIFICATION TECHNOLOGY
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Abstract :

A lanthanum-modified polyethersulfone composite membrane (La-PES) loaded with nitrogen-doped carbon nanotubes (NCNT@La-PES) was successfully fabricated in this study. The NCNT@La-PES membrane could activate PMS, which enabled the degradation of phosphonate to phosphate, while also possessing the capability for adsorptive recycling of phosphorus. During the processing of 10.31 mg/L 1-hydroxyethane-1,1-diphosphonic acid (HEDP) in the NCNT@La-PES/PMS system, the removal efficiency of HEDP achieved 100 %, and almost 78 % of total phosphate (TP) in HEDP was transformed into phosphate, which were further adsorptive recycled by the La-PES membrane. The NCNT@La-PES/PMS system demonstrated exceptional performance across a broad pH range (4-10), with complete removal of HEDP and adsorption recovery of 73 % transformed phosphate. The decrease in pH caused by catalytic reaction reduced the hindrance of the alkaline environment to phosphate adsorption. The NCNT, acting as a catalyst, facilitated the formation of surface-bound radicals upon PMS activation, playing a pivotal role in the degradation of HEDP. The adsorption of phosphate by La-PES was primarily attributed to the ligand exchange between La(OH)3 and phosphate. Moreover, NCNT@La-PES/PMS system showed significant catalytic and adsorption performance in consecutive cyclic treatment of HEDP in actual water, indicating its potential in practical application.

Keyword :

Peroxymonosulfate Peroxymonosulfate Phosphonates Phosphonates Membrane catalysis Membrane catalysis Catalytic oxidation Catalytic oxidation Lanthanum Lanthanum Nitrogen-doped carbon nanotube Nitrogen-doped carbon nanotube Membrane adsorption Membrane adsorption

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GB/T 7714 Jia, Ruiyuan , Yu, Xiaomeng , Wang, Wenhui et al. NCNT@La-PES composite membrane activates peroxymonosulfate for the degradation of HEDP and adsorptive recycling of phosphorous [J]. | SEPARATION AND PURIFICATION TECHNOLOGY , 2025 , 365 .
MLA Jia, Ruiyuan et al. "NCNT@La-PES composite membrane activates peroxymonosulfate for the degradation of HEDP and adsorptive recycling of phosphorous" . | SEPARATION AND PURIFICATION TECHNOLOGY 365 (2025) .
APA Jia, Ruiyuan , Yu, Xiaomeng , Wang, Wenhui , Du, Kemeng , Liu, Yuru , Wang, Yufei et al. NCNT@La-PES composite membrane activates peroxymonosulfate for the degradation of HEDP and adsorptive recycling of phosphorous . | SEPARATION AND PURIFICATION TECHNOLOGY , 2025 , 365 .
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Metabolic products comparison in autotrophic and heterotrophic nitrogen removal: Insights into membrane fouling SCIE
期刊论文 | 2025 , 282 | WATER RESEARCH
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Metabolic products play a significant role in membrane fouling during biological wastewater treatment. However, the differences in metabolic product composition and membrane fouling potentials between autotrophic (anammox, AN) and heterotrophic (denitrification, DN) nitrogen removal systems are not well understood. This study cultivated autotrophic and heterotrophic nitrogen removal systems and analyzed the compositions of their metabolic products. The analysis methods included fluorescence excitation-emission matrix-parallel factor analysis (EEM-PARAFAC), Fourier transform infrared spectroscopy (FTIR), size exclusion chromatography coupled with organic carbon and nitrogen detection (SEC-OCD-OND), and Fourier-transform ion cyclotron resonance mass spectrometry (FT-ICR MS). Subsequently, the membrane fouling potential of these metabolic products was evaluated by dead-end membrane filtration experiments with microfiltration (MF) and ultrafiltration (UF) membranes. Significant differences in metabolic product composition existed between AN and DN nitrogen removal systems, which led to a distinct impact on membrane fouling. In the AN nitrogen removal system, membrane fouling was relatively mild despite the high abundance of polysaccharides (with C-O-C ring vibrations) and tannin-like substances in metabolic products. Its fouling was primarily caused by the rejection of humic substances. Conversely, in the DN nitrogen removal system, the high rejection of proteins and polysaccharides in SMP (52 % and 62 %) and EPS (18 % and 59 %) caused a pronounced flux decline, greatly increasing membrane fouling potential. These findings enhance understanding of membrane fouling mechanisms in autotrophic and heterotrophic nitrogen removal systems, providing actionable strategies to mitigate membrane fouling in biological nitrogen removal coupled with MBR process.

Keyword :

Membrane fouling Membrane fouling Ultrafiltration Ultrafiltration Metabolic products Metabolic products Microfiltration Microfiltration Anammox Anammox

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GB/T 7714 Zhou, Tong , Guo, Jin , Zhang, Shujun et al. Metabolic products comparison in autotrophic and heterotrophic nitrogen removal: Insights into membrane fouling [J]. | WATER RESEARCH , 2025 , 282 .
MLA Zhou, Tong et al. "Metabolic products comparison in autotrophic and heterotrophic nitrogen removal: Insights into membrane fouling" . | WATER RESEARCH 282 (2025) .
APA Zhou, Tong , Guo, Jin , Zhang, Shujun , Liu, Yuru , Yin, Guangshuo , Wu, Wenjun et al. Metabolic products comparison in autotrophic and heterotrophic nitrogen removal: Insights into membrane fouling . | WATER RESEARCH , 2025 , 282 .
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Ultraefficient water purification with low peroxymonosulfate input by a polymerization-driven single-atom iron dispersed layered double hydroxide membrane SCIE
期刊论文 | 2025 , 732 | JOURNAL OF MEMBRANE SCIENCE
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Abstract :

Herein, this work develops a single-atom iron (Fe) modified layered double hydroxide (Fe-LDH) membrane for peroxymonosulfate (PMS) activation. The Fe-LDH membrane/PMS system operates via a surface-bound PMS (PMS*)-initiated polymerization-driven pathway, achieving unprecedentedly catalytic performance on highefficient and fast removal of bisphenol A (BPA) and corresponding total organic carbon (TOC) with a low PMS consumption. The Fe-LDH membrane, with a retention time of merely 76.7 ms, realizing complete degradation of BPA and an impressive 89.6 % reduction in TOC by activating PMS. The first-order rate constant for BPA degradation is 5640 min- 1 and 2580 min- 1 for TOC removal. Besides, the process maintains a remarkable low PMS consumption of 0.31 mM (mmol C L-1)-1. The Fe-LDH membrane/PMS system exhibits strong stability to environmental fluctuation of pH variations, coexisting substances and different water matrices, making it desirable for practical phenolic wastewater treatment. This study provides a novel approach in the development of catalytic membrane for phenolic wastewater purification, highlighting the obvious progress of advanced catalytic membrane with high TOC removal, fast reaction kinetics, and low PMS consumption.

Keyword :

Polymerization-driven Polymerization-driven Layered double hydroxide Layered double hydroxide Low-peroxymonosulfate consumption Low-peroxymonosulfate consumption Catalytic membrane Catalytic membrane Single-atom iron Single-atom iron

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GB/T 7714 Wang, Yufei , Wu, Wenjun , Yu, Xiaomeng et al. Ultraefficient water purification with low peroxymonosulfate input by a polymerization-driven single-atom iron dispersed layered double hydroxide membrane [J]. | JOURNAL OF MEMBRANE SCIENCE , 2025 , 732 .
MLA Wang, Yufei et al. "Ultraefficient water purification with low peroxymonosulfate input by a polymerization-driven single-atom iron dispersed layered double hydroxide membrane" . | JOURNAL OF MEMBRANE SCIENCE 732 (2025) .
APA Wang, Yufei , Wu, Wenjun , Yu, Xiaomeng , Sun, Zaicheng , Wang, Hui , Guo, Jin . Ultraefficient water purification with low peroxymonosulfate input by a polymerization-driven single-atom iron dispersed layered double hydroxide membrane . | JOURNAL OF MEMBRANE SCIENCE , 2025 , 732 .
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Thermal coupled carbon nanotubes activated peroxymonosulfate for catalytic degradation of metronidazole and its application for membrane fouling mitigation SCIE
期刊论文 | 2025 , 73 | JOURNAL OF WATER PROCESS ENGINEERING
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Abstract :

The thermal activation peroxymonosulfate (TAP) gained increasing attention for degrading organic contaminants due to its ability to generate strongly oxidizing sulfate radicals (SO4 center dot-) and hydroxyl radicals ((OH)-O-center dot). However, its application is often limited by high energy demands, long reaction times, and sluggish reaction kinetics. To overcome these limitations, the development of advanced oxidation processes (AOPs) that synergize with TAP is imperative. In this study, thermal coupled carbon nanotubes (CNTs) activated peroxymonosulfate catalytic system (Thermal/CNT/PMS) was constructed for the degradation of MNZ. Under temperature of 50 degrees C, the TAP system can hardly degrade MNZ, while the degradation rate of MNZ by the Thermal/CNT/PMS system reach 100 %. Quenching experiments and electron paramagnetic resonance (EPR) techniques have confirmed that in the Thermal/CNT/PMS system, the degradation of MNZ primarily occurs via the free radical pathway. To further explore its practical application potential, Thermal/CNT/PMS was integrated with membrane to construct the Thermal/CNT/PMS-M filtration process. The degradation of MNZ in the Thermal/CNT/PMS-M filtration process can reach 100 % with kobs of (5.59 s(-1)), being 10,000 times higher than that of the Thermal/CNT/PMS system (3.29E-4 s(-1)), which is attributed to the enhanced mass transfer by membrane filtration. Additionally, the Thermal/CNT/PMS-M system showed excellent membrane fouling mitigation capabilities. During the filtration process, the normalized flux of the Thermal/CNT/PMS-M maintains 0.97, significantly mitigating membrane fouling. Besides, Thermal/CNT/PMS-M system realized around 45 % humic acid removal.

Keyword :

Membrane fouling Membrane fouling Catalytic oxidation Catalytic oxidation Thermal Thermal Peroxymonosulfate Peroxymonosulfate Carbon nanotube Carbon nanotube

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GB/T 7714 Du, Kemeng , Wu, Wenjun , Wang, Yufei et al. Thermal coupled carbon nanotubes activated peroxymonosulfate for catalytic degradation of metronidazole and its application for membrane fouling mitigation [J]. | JOURNAL OF WATER PROCESS ENGINEERING , 2025 , 73 .
MLA Du, Kemeng et al. "Thermal coupled carbon nanotubes activated peroxymonosulfate for catalytic degradation of metronidazole and its application for membrane fouling mitigation" . | JOURNAL OF WATER PROCESS ENGINEERING 73 (2025) .
APA Du, Kemeng , Wu, Wenjun , Wang, Yufei , Jia, Ruiyuan , Liu, Yuru , Yu, Xiaomeng et al. Thermal coupled carbon nanotubes activated peroxymonosulfate for catalytic degradation of metronidazole and its application for membrane fouling mitigation . | JOURNAL OF WATER PROCESS ENGINEERING , 2025 , 73 .
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Membrane fouling mitigation in Anoxic-Oxic membrane bioreactor with carbon nanotube/dopamine modification SCIE
期刊论文 | 2025 , 71 | JOURNAL OF WATER PROCESS ENGINEERING
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Abstract :

In this study, hollow fiber membranes in Anoxic-Oxic Membrane Bioreactor (A/O-MBR) were modified using dopamine (DA) to crosslink carbon nanotubes (CNTs), referred as M-CNTs/PDA, and their fouling behavior was compared with original membranes (M-pristine). The experimental results indicated the total nitrogen removal rates kept exceeding 90 %. Transmembrane Pressure (TMP) data revealed that M-CNTs/PDA exhibits an extended operational lifespan than the M-pristine. Lower levels concentration of protein, polysaccharides and humic substances presented on the foulant layer of M-CNTs/PDA membranes. In filtration experiments, M-CNTs/ PDA exhibited a smaller reduction in specific flux and higher fouling reversibility, with a flux recovery rate of 96.64 %. The confocal laser scanning microscopy (CLSM) images further indicated that the fouling layer on the M-CNTs/PDA is significantly thinner. Flow cytometry analyses indicated that M-CNTs/PDA has sterilizing effects that can effectively mitigate biological fouling to some extent. Overall, the M-CNTs/PDA membrane effectively mitigated both organic and biological fouling. This offers a promising strategy to enhance membrane performance and longevity in A/O-MBR systems, addressing a critical challenge in wastewater treatment by improving operational efficiency and reducing maintenance costs.

Keyword :

MBR MBR Polydopamine Polydopamine Biological nitrogen removal Biological nitrogen removal Carbon nanotubes Carbon nanotubes Membrane modification Membrane modification

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GB/T 7714 Liu, Yuru , Zhou, Tong , Yin, Guangshuo et al. Membrane fouling mitigation in Anoxic-Oxic membrane bioreactor with carbon nanotube/dopamine modification [J]. | JOURNAL OF WATER PROCESS ENGINEERING , 2025 , 71 .
MLA Liu, Yuru et al. "Membrane fouling mitigation in Anoxic-Oxic membrane bioreactor with carbon nanotube/dopamine modification" . | JOURNAL OF WATER PROCESS ENGINEERING 71 (2025) .
APA Liu, Yuru , Zhou, Tong , Yin, Guangshuo , Du, Kemeng , Jia, Ruiyuan , Yu, Xiaomeng et al. Membrane fouling mitigation in Anoxic-Oxic membrane bioreactor with carbon nanotube/dopamine modification . | JOURNAL OF WATER PROCESS ENGINEERING , 2025 , 71 .
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Enhancing the performance of catalytic membranes for simultaneous degradation of dissolved organic phosphonates and phosphorous recovery: A fit-for-purpose loose nanofiltration design SCIE
期刊论文 | 2024 , 354 | APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
WoS CC Cited Count: 9
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Abstract :

In this study, we developed a loose nanofiltration catalytic membrane (LNCM) by incorporating nitrogen-doped carbon nanotubes (NCNT) into graphene oxide (GO) membrane (NCNT@GO-M) to activate peroxymonosulfate for efficient phosphonates degradation into phosphate, reducing phosphorus-based pollution and facilitating P recovery. The NCNT@GO-M exhibited superior permeability (76.7 L m(-2) h(-1) bar(-1)) due to its expanded pore size (1.60 nm). It integrated nanoconfinement and surface catalysis, improving the availability of surface-bound sulfate radicals for rapid Orth-P generation (k(obs), 1.93 s(-1)), with the k(obs) being 2.4 times higher than that of the NCNT membrane catalytic system and 2626 times higher than the NCNT@GO heterogeneous catalytic system. The NCNT@GO-M also demonstrated excellent antifouling, self-cleaning, and anti-interference ability, effectively retaining humic acid with a molecular weight exceeding 3.6 kDa (similar to 62% removal of dissolved organic carbon), making it suitable for real-water applications. The development of LNCM shows great potential for transforming and recovery of the nutrients in wastewater.

Keyword :

Size exclusion Size exclusion Confinement Confinement Mass transfer Mass transfer Reaction kinetics Reaction kinetics Loose nanofiltration Loose nanofiltration

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GB/T 7714 Wu, Wenjun , Wang, Yufei , Du, Kemeng et al. Enhancing the performance of catalytic membranes for simultaneous degradation of dissolved organic phosphonates and phosphorous recovery: A fit-for-purpose loose nanofiltration design [J]. | APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY , 2024 , 354 .
MLA Wu, Wenjun et al. "Enhancing the performance of catalytic membranes for simultaneous degradation of dissolved organic phosphonates and phosphorous recovery: A fit-for-purpose loose nanofiltration design" . | APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY 354 (2024) .
APA Wu, Wenjun , Wang, Yufei , Du, Kemeng , Liu, Qiushan , Zhou, Tong , Wei, Na et al. Enhancing the performance of catalytic membranes for simultaneous degradation of dissolved organic phosphonates and phosphorous recovery: A fit-for-purpose loose nanofiltration design . | APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY , 2024 , 354 .
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Nitrogen-doped carbon nanotube catalytic membrane with peroxymonosulfate activation for the degradation of metronidazole and bisphenol A: Performance and mechanism comparison SCIE
期刊论文 | 2024 , 319 | DESALINATION AND WATER TREATMENT
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As typical pharmaceuticals and personal care products (PPCPs), metronidazole (MNZ) and bisphenol A (BPA) normally presented in sewage effluent and surface water. The nitrogen-doped multi-walled carbon nanotube (NCNT) membrane was prepared and utilized as a peroxymonosulphate (PMS) catalyst to degrade MNZ and BPA. Within the NCNT membrane/PMS catalytic system, MNZ and BPA can be efficiently degraded, while different catalytic degradation mechanism exists related with their structure, adsorption properties and even PMS dosage. The optimal conditions for the degradation of MNZ and BPA were investigated. Quenching tests and electron paramagnetic resonance examination demonstrated that center dot OH radicals and 1O2 played roles in MNZ degradation, while surface-bound radicals and 1O2 dominated BPA degradation within the NCNT membrane catalytic PMS system. Electrochemical tests proved that an electron-transfer process between NCNT membrane and PMS during MNZ degradation, and the electron-transfer process was further verified with the degradation experiment in the binary-solute system (BPA and MNZ). PMS dosage had little influence on the degradation mechanism of MNZ and BPA.

Keyword :

Catalytic membrane Catalytic membrane Nitrogen -doped multi -walled carbon nanotube Nitrogen -doped multi -walled carbon nanotube Bisphenol A Bisphenol A Metronidazole Metronidazole Peroxymonosulphate Peroxymonosulphate

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GB/T 7714 Wei, Na , Liu, Guohan , Liu, Qiushan et al. Nitrogen-doped carbon nanotube catalytic membrane with peroxymonosulfate activation for the degradation of metronidazole and bisphenol A: Performance and mechanism comparison [J]. | DESALINATION AND WATER TREATMENT , 2024 , 319 .
MLA Wei, Na et al. "Nitrogen-doped carbon nanotube catalytic membrane with peroxymonosulfate activation for the degradation of metronidazole and bisphenol A: Performance and mechanism comparison" . | DESALINATION AND WATER TREATMENT 319 (2024) .
APA Wei, Na , Liu, Guohan , Liu, Qiushan , Wu, Wenjun , Wang, Yufei , Du, Kemeng et al. Nitrogen-doped carbon nanotube catalytic membrane with peroxymonosulfate activation for the degradation of metronidazole and bisphenol A: Performance and mechanism comparison . | DESALINATION AND WATER TREATMENT , 2024 , 319 .
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Exploring transformation of dissolved organic matters and dissolved organic nitrogen in full-scale anammox wastewater treatment: Temperature and microbial roles SCIE
期刊论文 | 2024 , 408 | BIORESOURCE TECHNOLOGY
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Variation of dissolved organic matters (DOM) in mainstream anammox process has received limited attention. This study systematically characterized DOM and dissolved organic nitrogen (DON) in a full-scale mainstream anammox wastewater treatment plant (WWTP) using spectroscopy and Fourier transform-ion cyclotron resonance mass spectrometry. Roles of bacterial community structures related with temperatures on DOM and DON transformations were analyzed. Results indicated that the WWTP removed highly bioavailable, S-containing DOM while producing more unsaturated, aromatic, and N-containing DOM. Higher relative abundances of Proteobacteria and Chloroflexi at low temperature resulted in greater removal rates of proteins, SMP-like and humic acid-like substances. At high temperature, higher relative abundance of Actinobacteriota increased lignin production. Principal component analysis revealed that temperature significantly impacted DOM characteristics compared to DON. These findings are crucial for understanding DOM and DON transformation during mainstream anammox WWTP.

Keyword :

Anaerobic ammonia oxidation Anaerobic ammonia oxidation DOM DOM Fourier transform-ion cyclotron resonance Fourier transform-ion cyclotron resonance mass spectrometry mass spectrometry Microbial community structures Microbial community structures DON DON

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GB/T 7714 Zhou, Tong , Liu, Qiushan , Zhang, Shujun et al. Exploring transformation of dissolved organic matters and dissolved organic nitrogen in full-scale anammox wastewater treatment: Temperature and microbial roles [J]. | BIORESOURCE TECHNOLOGY , 2024 , 408 .
MLA Zhou, Tong et al. "Exploring transformation of dissolved organic matters and dissolved organic nitrogen in full-scale anammox wastewater treatment: Temperature and microbial roles" . | BIORESOURCE TECHNOLOGY 408 (2024) .
APA Zhou, Tong , Liu, Qiushan , Zhang, Shujun , Liu, Yuru , Yin, Guangshuo , Wu, Wenjun et al. Exploring transformation of dissolved organic matters and dissolved organic nitrogen in full-scale anammox wastewater treatment: Temperature and microbial roles . | BIORESOURCE TECHNOLOGY , 2024 , 408 .
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Nanoconfined catalytic membranes for EfOM fouling mitigation: An intelligent "pore-centric" cleaning strategy SCIE
期刊论文 | 2024 , 715 | JOURNAL OF MEMBRANE SCIENCE
WoS CC Cited Count: 2
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This study investigated the effectiveness of the nanoconfined catalytic membrane (NCCM), fabricated by nitrogen-doped carbon nanotubes (NCNT) incorporated with graphene oxide membrane (NCNT@GO-M), in mitigating fouling caused by effluent organic matter (EfOM). Compared to conventional catalytic membranes (NRCM) that lack precise spatial design and prepared with only NCNT, NCCM exhibits a unique advantage by preferentially retaining and adsorbing protein-like substances in EfOM during the fouling formation process, forming a cake layer that effectively mitigates pore blockage from irreversible foulants. Furthermore, the ordered nanoconfined structure of NCCM facilitates an intelligent "pore-centric" hierarchical degradation strategy based on the molecular size of EfOM, preferentially removing irreversible foulants caused by fulvic acid-like and low molecular weight protein-like substances. The results demonstrated effective preservation of catalytic sites by the NCCM's advanced nanoconfined configuration and a 1.6-fold increase in the mass transfer rate of peroxymonosulfate (PMS) compared to NRCM, synergistically promoting hydroxyl radical (center dot OH) enrichment, resulting in rapid EfOM degradation kinetics. Additionally, chemical cleaning almost completely eliminated irreversible fouling, restoring the NCCM to near its original flux. Overall, this study sheds light on the fouling mitigation mechanisms of NCCM, aiding their tailored design and application in targeted wastewater treatment.

Keyword :

EfOM EfOM Membrane fouling Membrane fouling Nanoconfinement effect Nanoconfinement effect Catalytic membrane Catalytic membrane

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GB/T 7714 Wu, Wenjun , Guo, Jin , Wang, Wenhui et al. Nanoconfined catalytic membranes for EfOM fouling mitigation: An intelligent "pore-centric" cleaning strategy [J]. | JOURNAL OF MEMBRANE SCIENCE , 2024 , 715 .
MLA Wu, Wenjun et al. "Nanoconfined catalytic membranes for EfOM fouling mitigation: An intelligent "pore-centric" cleaning strategy" . | JOURNAL OF MEMBRANE SCIENCE 715 (2024) .
APA Wu, Wenjun , Guo, Jin , Wang, Wenhui , Yu, Xiaomeng , Wang, Yufei , Zhou, Tong et al. Nanoconfined catalytic membranes for EfOM fouling mitigation: An intelligent "pore-centric" cleaning strategy . | JOURNAL OF MEMBRANE SCIENCE , 2024 , 715 .
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Preparation of a novel LC@MWCNTs membrane and its application for enhanced phosphate removal and fouling control SCIE
期刊论文 | 2024 , 64 | JOURNAL OF WATER PROCESS ENGINEERING
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To control the eutrophication originating from phosphate discharge, a novel adsorptive membrane was prepared by vacuum filtrating lanthanum carbonate modified multi-walled carbon nanotubes (LC@MWCNTs) on the UF membrane. The LC@MWCNTs were firstly made using an in-situ method by adding MWCNTs to LaCl3 & sdot;7H2O solution and forming lanthanum carbonate under alkaline conditions. The adsorption experiments exhibited that the maximum adsorption capacity of LC@MWCNTs was 77.58 mg P/g at pH 5. And the phosphate adsorption by LC@MWCNTs was not predominantly reliant on electrostatic interaction, but rather achieved through chemical interactions. Then, the prepared LC@MWCNTs membrane was systematically evaluated for its phosphate removal efficiency and anti-fouling performance during filtration. With the initial phosphate concentration of 1 mg P/L and membrane flux of 378 L & sdot;m- 2 h- 1, the phosphate removal by LC@MWCNTs membrane approached almost 100 %. Moreover, the LC@MWCNTs membrane exhibited higher permeability (281.6 L & sdot;m- 2h- 1bar- 1) and effectiveness for humic acid (HA) removal (75 %), and LC@MWCNTs membrane mitigated the fouling caused by HA. XPS, FTIR and XRD elucidated that phosphate removal by LC@MWCNTs membrane primarily through the formation of La-O-P inner-sphere complexes via ligand exchange, resulting in the formation of adsorption product LaPO4 & sdot;0.5H2O. Under strong alkaline conditions, the LC@MWCNTs membrane rapidly restored its phosphate removal performance (30 min) with no significant detachment of the LC@MWCNTs layer, indicating its good recovery and reusability performance. Additionally, the LC@MWCNTs membrane could continuously remove phosphate from actual water, confirming its potential for future practical applications.

Keyword :

Lanthanum carbonate Lanthanum carbonate Ultrafiltration Ultrafiltration Multi-walled carbon nanotubes Multi-walled carbon nanotubes Phosphate Phosphate

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GB/T 7714 Liu, Guohan , Wei, Na , Wu, Wenjun et al. Preparation of a novel LC@MWCNTs membrane and its application for enhanced phosphate removal and fouling control [J]. | JOURNAL OF WATER PROCESS ENGINEERING , 2024 , 64 .
MLA Liu, Guohan et al. "Preparation of a novel LC@MWCNTs membrane and its application for enhanced phosphate removal and fouling control" . | JOURNAL OF WATER PROCESS ENGINEERING 64 (2024) .
APA Liu, Guohan , Wei, Na , Wu, Wenjun , Liu, Qiushan , Wang, Yufei , Du, Kemeng et al. Preparation of a novel LC@MWCNTs membrane and its application for enhanced phosphate removal and fouling control . | JOURNAL OF WATER PROCESS ENGINEERING , 2024 , 64 .
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