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学者姓名:郭瑾

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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
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Abstract :

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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Typical Heterotrophic and Autotrophic Nitrogen Removal Process Coupled with Membrane Bioreactor: Comparison of Fouling Behavior and Characterization SCIE
期刊论文 | 2024 , 14 (10) | MEMBRANES
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Abstract :

There is limited research on the relationship between membrane fouling and microbial metabolites in the nitrogen removal process coupled with membrane bioreactors (MBRs). In this study, we compared anoxic-oxic (AO) and partial nitritation-anammox (PNA), which were selected as representative heterotrophic and autotrophic biological nitrogen removal-coupled MBR processes for their fouling behavior. At the same nitrogen loading rate of 100 mg/L and mixed liquor suspended solids (MLSS) concentration of 4000 mg/L, PNA-MBR exhibited more severe membrane fouling compared to AO-MBR, as evidenced by monitoring changes in transmembrane pressure (TMP). In the autotrophic nitrogen removal process, without added organic carbon, the supernatant of PNA-MBR had higher concentrations of protein, polysaccharides, and low-molecular-weight humic substances, leading to a rapid flux decline. Extracellular polymeric substances (EPS) extracted from suspended sludge and cake sludge in PNA-MBR also contributed to more severe membrane fouling than in AO-MBR. The EPS subfractions of PNA-MBR exhibited looser secondary structures in protein and stronger surface hydrophobicity, particularly in the cake sludge, which contained higher contents of humic substances with lower molecular weights. The higher abundances of Candidatus Brocadia and Chloroflexi in PNA-MBR could lead to the production of more hydrophobic organics and humic substances. Hydrophobic metabolism products as well as anammox bacteria were deposited on the hydrophobic membrane surface and formed serious fouling. Therefore, hydrophilic membrane modification is more urgently needed to mitigate membrane fouling when running PNA-MBR than AO-MBR.

Keyword :

membrane fouling membrane fouling microbial community microbial community partial nitritation-anammox nitrogen removal process partial nitritation-anammox nitrogen removal process anoxic-oxic nitrogen removal process anoxic-oxic nitrogen removal process membrane bioreactor membrane bioreactor

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GB/T 7714 Liu, Qiushan , Zhou, Tong , Liu, Yuru et al. Typical Heterotrophic and Autotrophic Nitrogen Removal Process Coupled with Membrane Bioreactor: Comparison of Fouling Behavior and Characterization [J]. | MEMBRANES , 2024 , 14 (10) .
MLA Liu, Qiushan et al. "Typical Heterotrophic and Autotrophic Nitrogen Removal Process Coupled with Membrane Bioreactor: Comparison of Fouling Behavior and Characterization" . | MEMBRANES 14 . 10 (2024) .
APA Liu, Qiushan , Zhou, Tong , Liu, Yuru , Wu, Wenjun , Wang, Yufei , Liu, Guohan et al. Typical Heterotrophic and Autotrophic Nitrogen Removal Process Coupled with Membrane Bioreactor: Comparison of Fouling Behavior and Characterization . | MEMBRANES , 2024 , 14 (10) .
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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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Abstract :

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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Nitrogen-doped carbon nanotube modified ultrafiltration membrane activating peroxymonosulfate for catalytic transformation of phosphonate and mitigation of membrane fouling SCIE
期刊论文 | 2023 , 314 | SEPARATION AND PURIFICATION TECHNOLOGY
WoS CC Cited Count: 9
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Abstract :

The nitrogen-doping carbon nanotube modified polyethersulfone membrane (NCNT@PES) was prepared by vacuum-assisted filtration. The catalytic activity and anti-fouling capacity of NCNT@PES/peroxymonosulfate (PMS) system were both systematically investigated. Selecting ethylenediamine tetra(methylene phosphonic acid) (EDTMP) as a target phosphonate, the NCNT@PES/PMS system degraded almost 100% of EDTMP, and about 60% of the total phosphorus (TP) in EDTMP could be transformed into orthophosphate (PO43-) within 1 min. Scavenger experiments and electron paramagnetic resonance (EPR) technique verified that the surface -bound radicals were mainly contributed the degradation and transformation of EDTMP in the NCNT@PES/ PMS system. The presence of HCO3 -, SO42-and NOM weakened the catalytic reactions, nevertheless, the NCNT@PES/PMS system still showed considerable effectiveness on the transformation of EDTMP in real sewage effluent. Moreover, the anti-fouling experiment proved that NCNT@PES/PMS system were superior on the removal of fluorescent components in the real sewage effluent, and their removal rates for the dissolved organic matter (DOC) and UV absorbance at 254 nm (UV254) were also improved. During the filtration cycles, the NCNT@PES/PMS system mitigated the membrane fouling significantly, which had been verified by the slower decline of normalized flux, less ultrapure water flux loss rates and higher ultrapure water flux recovery rates. This study provided a novel but simple way for effective EDTMP decontamination, at the same time, confirmed the potential of NCNT@PES membrane coupled with PMS activation on anti-fouling and water purification ability.

Keyword :

Nitrogen -doping carbon nanotube Nitrogen -doping carbon nanotube Catalytic membrane Catalytic membrane Anti -fouling Anti -fouling Peroxymonosulfate Peroxymonosulfate Phosphonates transformation Phosphonates transformation

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GB/T 7714 Wang, Yufei , Wei, Na , Zeng, Jia et al. Nitrogen-doped carbon nanotube modified ultrafiltration membrane activating peroxymonosulfate for catalytic transformation of phosphonate and mitigation of membrane fouling [J]. | SEPARATION AND PURIFICATION TECHNOLOGY , 2023 , 314 .
MLA Wang, Yufei et al. "Nitrogen-doped carbon nanotube modified ultrafiltration membrane activating peroxymonosulfate for catalytic transformation of phosphonate and mitigation of membrane fouling" . | SEPARATION AND PURIFICATION TECHNOLOGY 314 (2023) .
APA Wang, Yufei , Wei, Na , Zeng, Jia , Wu, Yaochen , Zhou, Tong , Liu, Guohan et al. Nitrogen-doped carbon nanotube modified ultrafiltration membrane activating peroxymonosulfate for catalytic transformation of phosphonate and mitigation of membrane fouling . | SEPARATION AND PURIFICATION TECHNOLOGY , 2023 , 314 .
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Humic acid non-covalent functionalized multi-walled carbon nanotubes composite membrane and its application for the removal of organic dyes SCIE
期刊论文 | 2022 , 10 (2) | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
WoS CC Cited Count: 18
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Abstract :

It was the first time that humic acid (HA) was used to non-covalent functionalize multi-walled carbon nanotubes (MWCNTs). The MWCNT and HA-MWCNT was characterized by X-ray photoelectron spectroscopy (XPS), infrared spectra (IR) and transmission electron microscopy (TEM). Then, a HA non-covalent functionalized multi walled carbon nanotubes (HA-MWCNTs) membrane was prepared by vacuum filtration and used to remove organic dyes. To investigate the removal mechanism of organic dyes by HA-MWCNTs membrane, the dynamic filtration effectiveness of HA-MWCNTs membrane was compared with the adsorption ability of HA-MWCNTs. The results proved that HA-MWCNTs membrane had a higher effectiveness for the removal of dyes as it had shorter filtration time compared with the static adsorption experiment. Especially, the HA-MWCNTs membrane had a higher removal efficiency for cationic dye methylene blue (MB) than the raw MWCNTs (P-MWCNTs) membrane. The electrostatic interaction played an important role on the removal of MB, and the functionalization of MWCNTs with HA increased the surface electronegativity of MWCNTs membrane, and promoted the removal of MB during filtration process. As for RB19, in addition to 7C-7C stacking interaction, electrostatic interaction also influenced its removal by MWCNTs membrane. Compared with P-MWCNTs membrane, HAMWCNTs membrane slightly decreased the effectiveness of RB19 removal during filtration due to the increased electrostatic repulsion. Generally, the dynamic membrane filtration based on MWCNTs composite membrane could avoid the ecological risk caused by the release of MWCNTs. It provided a new idea for the further innovation of low-pressure membrane technology in the field of dye wastewater treatment.

Keyword :

Static adsorption Static adsorption Membrane filtration Membrane filtration Dynamic filtration Dynamic filtration Functionalization Functionalization HA HA MWCNTs MWCNTs

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GB/T 7714 Dong, Mengchan , Guo, Jin , Wang, Yu et al. Humic acid non-covalent functionalized multi-walled carbon nanotubes composite membrane and its application for the removal of organic dyes [J]. | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING , 2022 , 10 (2) .
MLA Dong, Mengchan et al. "Humic acid non-covalent functionalized multi-walled carbon nanotubes composite membrane and its application for the removal of organic dyes" . | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING 10 . 2 (2022) .
APA Dong, Mengchan , Guo, Jin , Wang, Yu , Gai, Xiaoli , Xiong, Xinya , Zeng, Jia et al. Humic acid non-covalent functionalized multi-walled carbon nanotubes composite membrane and its application for the removal of organic dyes . | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING , 2022 , 10 (2) .
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Preparation of Ultrafiltration Membrane by Polyethylene Glycol Non-Covalent Functionalized Multi-Walled Carbon Nanotubes: Application for HA Removal and Fouling Control SCIE
期刊论文 | 2021 , 11 (5) | MEMBRANES
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Polyethylene glycol (PEG) non-covalent-functionalized multi-walled carbon nanotubes (MWCNT) membrane were prepared by vacuum filtration. The dispersion and stability of MWCNT non-covalent functionalized with PEG were all improved. TEM characterization and XPS quantitative analysis proved that the use of PEG to non-covalent functionalize MWCNT was successful. SEM image analysis confirmed that the pore size of PEG-MWCNT membrane was more concentrated and distributed in a narrower range of diameter. Contact angle measurement demonstrated that PEG non-covalent functionalization greatly enhanced the hydrophilicity of MWCNT membranes. The results of pure water flux showed that the PEG-MWCNT membranes could be categorized into low pressure membrane. PEG-MWCNT membrane had a better effect on the removal of humic acid (HA) and a lower TMP growth rate compared with a commercial 0.01-mu m PVDF ultrafiltration membrane. During the filtration of bovine serum albumin (BSA), the antifouling ability of PEG-MWCNT membranes were obviously better than the raw MWCNT membranes. The TMP recovery rate of PEG-MWCNT membrane after cross flushing was 79.4%, while that of raw MWCNT-(COOH) and MWCNT membrane were only 14.9% and 28.3%, respectively. PEG non-covalent functionalization improved the antifouling ability of the raw MWCNT membranes and reduced the irreversible fouling, which effectively prolonged the service life of MWCNT membrane.

Keyword :

membrane fouling membrane fouling multi-walled carbon nanotubes multi-walled carbon nanotubes polyethylene glycol polyethylene glycol non-covalent functionalization non-covalent functionalization low-pressure membrane low-pressure membrane

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GB/T 7714 Wang, Yu , Dong, Mengchan , Xiong, Xinya et al. Preparation of Ultrafiltration Membrane by Polyethylene Glycol Non-Covalent Functionalized Multi-Walled Carbon Nanotubes: Application for HA Removal and Fouling Control [J]. | MEMBRANES , 2021 , 11 (5) .
MLA Wang, Yu et al. "Preparation of Ultrafiltration Membrane by Polyethylene Glycol Non-Covalent Functionalized Multi-Walled Carbon Nanotubes: Application for HA Removal and Fouling Control" . | MEMBRANES 11 . 5 (2021) .
APA Wang, Yu , Dong, Mengchan , Xiong, Xinya , Gai, Xiaoli , Zeng, Jia , Luan, Guirong et al. Preparation of Ultrafiltration Membrane by Polyethylene Glycol Non-Covalent Functionalized Multi-Walled Carbon Nanotubes: Application for HA Removal and Fouling Control . | MEMBRANES , 2021 , 11 (5) .
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The preparation of double layers low pressure carbon nanotubes membrane EI
会议论文 | 2021 , 647 (1) | 2020 6th International Conference on Advances in Energy Resources and Environment Engineering, ICAESEE 2020
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Double layers low pressure carbon nanotubes (CNTs) membrane was prepared by predepositing CNTs on the Polyethersulfone (PES) flat membrane by pressure-assisted membrane filtration technology. Ethanol and Triton X-100 (TX-100) were used as dispersant to disperse two kinds of CNTs. By filtering two kind of CNTs dispersions in sequence, double layers CNTs were distributed on the surface of a PES membrane. With the proportion of the CNTs using TX-100 as dispersant increasing, the pure water flux of the double layers CNTs membrane will decrease. Normally, a membrane's upper layer using ethanol as CNTs' dispersant have higher pure water flux. Overall, almost all the double layers low pressure CNTs membrane realized the higher HA removal rate than single layer. By using CNTs with a diameter of 10-20 nm and length of 10-30 μm, the membrane with upper layer of 70% CNTs using ethanol as dispersant and 30% CNTs using TX-100 as dispersant can removal over 95% HA. © Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence.

Keyword :

Microfiltration Microfiltration Carbon nanotubes Carbon nanotubes Ethanol Ethanol Membrane technology Membrane technology Energy resources Energy resources

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GB/T 7714 Liu, Weiyan , Xue, Xiaolei , Wang, Qingshan et al. The preparation of double layers low pressure carbon nanotubes membrane [C] . 2021 .
MLA Liu, Weiyan et al. "The preparation of double layers low pressure carbon nanotubes membrane" . (2021) .
APA Liu, Weiyan , Xue, Xiaolei , Wang, Qingshan , Wang, Yu , Guo, Jin . The preparation of double layers low pressure carbon nanotubes membrane . (2021) .
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Down-Regulation of Inpp5e Associated With Abnormal Ciliogenesis During Embryonic Neurodevelopment Under Inositol Deficiency SCIE
期刊论文 | 2021 , 12 | FRONTIERS IN NEUROLOGY
WoS CC Cited Count: 4
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The inositol polyphosphate-5-phosphatase E (Inpp5e) gene is located on chromosome 9q34.3. The enzyme it encodes mainly hydrolyzes the 5-phosphate groups of phosphatidylinositol (3,4,5)-trisphosphate (PtdIns (3,4,5) P3) and phosphatidylinositol (4,5)-bisphosphate (PtdIns (4,5)P2), which are closely related to ciliogenesis and embryonic neurodevelopment, through mechanisms that are largely unknown. Here we studied the role of Inpp5e gene in ciliogenesis during embryonic neurodevelopment using inositol-deficiency neural tube defects (NTDs) mouse and cell models. Confocal microscopy and scanning electron microscope were used to examine the number and the length of primary cilia. The dynamic changes of Inpp5e expression in embryonic murine brain tissues were observed during Embryonic Day 10.5-13.5 (E 10.5-13.5). Immunohistochemistry, western blot, polymerase chain reaction (PCR) arrays were applied to detect the expression of Inpp5e and cilia-related genes of the embryonic brain tissues in inositol deficiency NTDs mouse. Real-time quantitative PCR (RT-qPCR) was used to validate the candidate genes in cell models. The levels of inositol and PtdIns(3,4) P2 were measured using gas chromatography-mass spectrometry (GC-MS) and enzyme linked immunosorbent assay (ELISA), respectively. Our results showed that the expression levels of Inpp5e gradually decreased in the forebrain tissues of the control embryos, but no stable trend was observed in the inositol deficiency NTDs embryos. Inpp5e expression in inositol deficiency NTDs embryos was significantly decreased compared with the control tissues. The expression levels of Inpp5e gene and the PtdIns (3,4) P2 levels were also significantly decreased in the inositol deficient cell model. A reduced number and length of primary cilia were observed in NIH3T3 cells when inositol deficient. Three important cilia-related genes (Ift80, Mkks, Smo) were down-regulated significantly in the inositol-deficient NTDs mouse and cell models, and Smo was highly involved in NTDs. In summary, these findings suggested that down-regulation of Inpp5e might be associated with abnormal ciliogenesis during embryonic neurodevelopment, under conditions of inositol deficiency.

Keyword :

gene expression gene expression embryonic development embryonic development cilia cilia phosphoinositide 5-phosphatase phosphoinositide 5-phosphatase inositol inositol neural tube defects neural tube defects

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GB/T 7714 Yue, Huixuan , Li, Shen , Qin, Jiaxing et al. Down-Regulation of Inpp5e Associated With Abnormal Ciliogenesis During Embryonic Neurodevelopment Under Inositol Deficiency [J]. | FRONTIERS IN NEUROLOGY , 2021 , 12 .
MLA Yue, Huixuan et al. "Down-Regulation of Inpp5e Associated With Abnormal Ciliogenesis During Embryonic Neurodevelopment Under Inositol Deficiency" . | FRONTIERS IN NEUROLOGY 12 (2021) .
APA Yue, Huixuan , Li, Shen , Qin, Jiaxing , Gao, Tingting , Lyu, Jianjun , Liu, Yu et al. Down-Regulation of Inpp5e Associated With Abnormal Ciliogenesis During Embryonic Neurodevelopment Under Inositol Deficiency . | FRONTIERS IN NEUROLOGY , 2021 , 12 .
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The combination effect of preozonation and CNTs layer modification on low-pressure membrane fouling control in treating NOM and EfOM SCIE
期刊论文 | 2021 , 627 | JOURNAL OF MEMBRANE SCIENCE
WoS CC Cited Count: 16
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In this study, the combination effect of preozonation and carbon nanotubes (CNTs) layer modification on lowpressure membrane (LPM) fouling control was systematically investigated. To understand the alleviation mechanism of the hybrid process, natural organic matter (NOM) from IHSS and effluent organic matter (EfOM) from actual sewage effluent were both selected as the typical organic foulants presented in actual surface water and wastewater. A dead-end continuous flow model combined with programmable logic control system was used to operate four membrane filtration units and their backwash processes. With a constant permeates flux, the fouling resistant of CNT modified LPM after preozonation could be evaluated according to the increase in transmembrane pressure (TMP). The results revealed that the hybrid approach of preozonation and CNTs modification could significantly improve the anti-fouling ability of LPM, reduce the backwash frequency, and improve the reversibility of membrane fouling. During the filtration of EfOM and NOM, preozonation improved the water treatment capacity of the CNTs modified membranes. The experiment of mass balance revealed that preozonation enhanced the recoverability of CNTs modified membrane and greatly increased its operation time in treating EfOM and NOM. The molecular weight distribution as well as EEM analysis demonstrated the dissimilar characteristics of EfOM and NOM, which caused the different treatment efficiency by preozonation and CNT modification. The mechanism of EfOM/NOM fouling on LPM was summarized as the primary blocking by medium-MW EfOM/NOM. CNTs modification had a better effect on the control of LPM fouling when treating EfOM, as it removed the medium-MW EfOM by adsorption and prevented the pores blockage of the original PVDF membrane. Preozonation had a better effect on the control of LPM fouling when treating NOM, as it greatly changed the MWD of NOM by removing medium-MW NOM. The combination effect of the hybrid preozonation and CNTs modification resulted in the most effective fouling control of LPM by both decreasing the medium-MW and large-MW EfOM/NOM. At the same time, it decreased irreversible fouling related with membrane pore blocking. The hybrid approach demonstrated its promising application for LPM fouling control in actual sewage water and surface water treatment process.

Keyword :

Membrane fouling Membrane fouling Low-pressure membrane (LPM) Low-pressure membrane (LPM) Effluent organic matter (EfOM) Effluent organic matter (EfOM) Preozonation Preozonation Carbon nanotubes (CNTs) Carbon nanotubes (CNTs) Natural organic matter (NOM) Natural organic matter (NOM)

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GB/T 7714 Guo, Jin , Zhu, Xuedong , Wang, Qingshan et al. The combination effect of preozonation and CNTs layer modification on low-pressure membrane fouling control in treating NOM and EfOM [J]. | JOURNAL OF MEMBRANE SCIENCE , 2021 , 627 .
MLA Guo, Jin et al. "The combination effect of preozonation and CNTs layer modification on low-pressure membrane fouling control in treating NOM and EfOM" . | JOURNAL OF MEMBRANE SCIENCE 627 (2021) .
APA Guo, Jin , Zhu, Xuedong , Wang, Qingshan , Liu, Weiyan , Wang, Yu . The combination effect of preozonation and CNTs layer modification on low-pressure membrane fouling control in treating NOM and EfOM . | JOURNAL OF MEMBRANE SCIENCE , 2021 , 627 .
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一种分层设计提高复合碳纳米材料低压膜性能的方法 incoPat
专利 | 2020-03-14 | CN202010178617.8
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本发明提供一种上下分层设计制备复合碳纳米材料低压膜的方法。该方法可以提高复合碳纳米材料低压膜去除污染物的性能和膜的力学性能,属于纳米材料与环境工程技术的交叉领域。本发明选用两种分散剂分别制备多壁碳纳米管悬浊液,并进行超声处理使其分散均匀,采用分层设计的理念,将两种多壁碳纳米管悬浊液按照体积比例,利用加压过滤的方式,逐层制备双层碳纳米材料低压膜。制备的表层疏松、底层致密的复合碳纳米材料低压膜,在保证较大通量的同时,有效提高了复合碳纳米材料低压膜去除污染物的性能和膜的力学性能,在水处理中有一定的应用前景。本方法操作简单可行,易于实现。

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GB/T 7714 郭瑾 , 薛小雷 , 马燕林 et al. 一种分层设计提高复合碳纳米材料低压膜性能的方法 : CN202010178617.8[P]. | 2020-03-14 .
MLA 郭瑾 et al. "一种分层设计提高复合碳纳米材料低压膜性能的方法" : CN202010178617.8. | 2020-03-14 .
APA 郭瑾 , 薛小雷 , 马燕林 , 栾桂荣 . 一种分层设计提高复合碳纳米材料低压膜性能的方法 : CN202010178617.8. | 2020-03-14 .
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