Query：
学者姓名：叶青
Refining：
Year
Type
Indexed by
Source
Complex
Co-Author
Language
Clean All
Abstract ：
As a novel medium-temperature CO(2 )adsorbent, K+ doped and graphitic carbon nitride modified layered double oxide composite (xK/CN-LDO, x = 15, 20, and 25 wt%) were prepared via in-situ synthesis and impregnation methods. Their adsorption performance was evaluated by thermal gravimetric analyzer. g-C3N4-modified LDO (CN-LDO) exhibited a CO2 adsorption capacity of 0.46 mmol/g, 1.39 times higher than the 0.33 mmol/g observed for LDO. This enhancement was attributed to the increased specific surface area and the exposure of additional extractable sites. Further doping with K significantly enhanced the adsorption uptake of xK/CN-LDO. Notably, 20 K/CN-LDO achieved the highest CO2 adsorption uptake of 0.82 mmol/g, representing a 2.48-fold increase compared to LDO. This further enhancement can be ascribed to K's ability to alter the distribution of chemical adsorption sites, thereby providing an optimal number of basic sites. In-situ DRIFTS analysis revealed that CO(2 )predominantly existed in the form of carbonate species, while adsorption kinetics studies show that the dominant mechanism is chemical adsorption, with external diffusion being the primary adsorption process. Furthermore, 20 K/CN-LDO exhibited significantly higher regeneration efficiency of 72.4 % after 10 cycles, showcasing its promising practical prospects for application in the SEWGS process.
Keyword ：
Adsorption mechanism Adsorption mechanism Graphitic carbon nitride Graphitic carbon nitride CO 2 adsorption capacity CO 2 adsorption capacity Layered double oxide Layered double oxide
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Wang, Lanyang , Qu, Chao , Meng, Fanwei et al. K+ doped graphitic carbon nitride modified layered double oxide nanocomposite towards high-efficiency CO2 adsorption at intermediate temperature [J]. | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING , 2024 , 12 (5) . |
| MLA | Wang, Lanyang et al. "K+ doped graphitic carbon nitride modified layered double oxide nanocomposite towards high-efficiency CO2 adsorption at intermediate temperature" . | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING 12 . 5 (2024) . |
| APA | Wang, Lanyang , Qu, Chao , Meng, Fanwei , Yang, Fan , Ye, Qing . K+ doped graphitic carbon nitride modified layered double oxide nanocomposite towards high-efficiency CO2 adsorption at intermediate temperature . | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING , 2024 , 12 (5) . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
Lead (Pb) is a heavy metal commonly found in industrial exhaust gases, which can reduce catalytic activity of a catalyst for the NH3-SCR reaction. In this study, 4.0 wt% Mn-loaded Fe-pillared interlayer clay (4Mn/Fe-PILC) and its Co-modified catalyst (2Co-4Mn/Fe-PILC) were prepared, in the meanwhile the 4Mn/Fe-PILC-Pb and 2Co-4Mn/Fe-PILC-Pb samples were also obtained using the impregnation method with a Pb(CH3COO)(2) aqueous solution. It was found that the addition of 2.0 wt% cobalt could significantly enhance Pb resistance of the 4Mn/Fe-PILC catalyst. The characterization results revealed that the doping of Co to Mn/Fe-PILC increased the surface Mn4+ species concentration, reducibility, and acid site amount, thereby improving Pb resistance of the catalyst. Furthermore, the in situ DRIFTS results demonstrated that Co modification enhanced the adsorption capacity of NH3 or NO, especially influenced formation of the NH3 intermediates and bridging nitrate species, which were also conducive to the improvement in Pb resistance of the catalyst.
Keyword ：
NH3-SCR NH3-SCR Co modification Co modification Pb resistance Pb resistance Nitrogen oxide Nitrogen oxide Pillared clay Pillared clay
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Wang, Xinpeng , Ye, Qing , Liu, Wenyi et al. Enhanced Resistance to Pb Poisoning of the Co-modified Mn/Fe-pillared Clay Catalysts for NH3-SCR at Low Temperatures [J]. | CHEMISTRYSELECT , 2023 , 8 (10) . |
| MLA | Wang, Xinpeng et al. "Enhanced Resistance to Pb Poisoning of the Co-modified Mn/Fe-pillared Clay Catalysts for NH3-SCR at Low Temperatures" . | CHEMISTRYSELECT 8 . 10 (2023) . |
| APA | Wang, Xinpeng , Ye, Qing , Liu, Wenyi , Meng, Fanwei , Yang, Fan , Zhang, Xin et al. Enhanced Resistance to Pb Poisoning of the Co-modified Mn/Fe-pillared Clay Catalysts for NH3-SCR at Low Temperatures . | CHEMISTRYSELECT , 2023 , 8 (10) . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
The xCN/Ce-OMS-2 (x is the nominal weight percentages of g-C3N4, x = 5.0, 10.0, and 15.0 wt%) catalysts were prepared via an in-situ synthesis method. Physicochemical properties of the as-prepared materials were measured by means of the XRD, TEM, SEM, BET, XPS, H2-TPR, NH3-TPD, and in-situ DRIFTS techniques, and their catalytic activities for the selective catalytic reduction of NOx with NH3 (NH3-SCR) at low temperatures were evaluated. Among all the catalysts, the 10CN/Ce-OMS-2 catalyst showed the widest temperature span for NH3-SCR reaction and the best resistance to SO2 poisoning. This may result from that the modification of g-C3N4 promoted the electron transfer in catalyst, not only increased the concentration of active Mn4+ species and chemisorbed oxygen species, but also improved the surface acidity of the catalyst. In-situ DRIFTS results further showed that the modification of g-C3N4 increased the amount of acid sites and enhanced the formation of NH3 or NO intermediates (i.e., monodentate and bidentate nitrate), which enhanced the reaction activity of the catalyst.
Keyword ：
G-C 3 N 4 modification G-C 3 N 4 modification OMS-2 OMS-2 NO x degradation NO x degradation Ceria doping Ceria doping
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Wang, Xinpeng , Qu, Chao , Liu, Wenyi et al. Enhanced low-temperature NH3-SCR performance by g-C3N4 modified Ce-OMS-2 catalyst [J]. | MICROPOROUS AND MESOPOROUS MATERIALS , 2023 , 361 . |
| MLA | Wang, Xinpeng et al. "Enhanced low-temperature NH3-SCR performance by g-C3N4 modified Ce-OMS-2 catalyst" . | MICROPOROUS AND MESOPOROUS MATERIALS 361 (2023) . |
| APA | Wang, Xinpeng , Qu, Chao , Liu, Wenyi , Meng, Fanwei , Yang, Fan , Zhang, Xin et al. Enhanced low-temperature NH3-SCR performance by g-C3N4 modified Ce-OMS-2 catalyst . | MICROPOROUS AND MESOPOROUS MATERIALS , 2023 , 361 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
A series of RE-3Cu/Zr-PILC (RE = La, Ce, Nd, Eu) catalysts were prepared via an impregnation method and activities for NH3-SCR were evaluated. The physicochemical properties of each catalyst were explored using XRD, BET, H-2-TPR, NH3-TPD, XPS and in-situ DRIFTS techniques. The doping of RE had enhanced the NH3-SCR efficiency of 3Cu/Zr-PILC. Among them, the 6Ce-3Cu/Zr-PILC sample demonstrated exceptional performance, achieving NO conversion rates exceeding 90% within the temperature range of 250-350 degrees C. Moreover, it reached its peak NO conversion rate of 96.3% at 300 degrees C while maintaining an impressive resistance to SO2. According to the results of TPR, TPD and XPS analysis, the modification of RE (especially Ce) enhanced the redox properties, the surface acidity, the atomic ratio of Cu2+/Cu+ and the amount of surface chemisorbed oxygen in the 3Cu/Zr-PILC samples, all of these are favorable for the NH3-SCR reaction. Furthermore, in-situ DRIFTS analysis reveals that the NH3-SCR reaction of RE-3Cu/Zr-PILC samples at low temperatures is governed by the Langmuir-Hinshelwood (L-H) and Eley-Rideal (E-R) mechanisms, with the L-H mechanism being the predominant factor.
Keyword ：
Cu loading Cu loading low-temperature NH3-SCR low-temperature NH3-SCR Rare earth metal Rare earth metal Zr-PILC Zr-PILC
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Liu, Wenyi , Wang, Xinpeng , Qu, Chao et al. Rare Earth Metal (La, Ce, Nd, Eu) Doped Cu/Zr-PILC Catalysts for the Efficient NH3-SCR at Low Temperature [J]. | COMBUSTION SCIENCE AND TECHNOLOGY , 2023 . |
| MLA | Liu, Wenyi et al. "Rare Earth Metal (La, Ce, Nd, Eu) Doped Cu/Zr-PILC Catalysts for the Efficient NH3-SCR at Low Temperature" . | COMBUSTION SCIENCE AND TECHNOLOGY (2023) . |
| APA | Liu, Wenyi , Wang, Xinpeng , Qu, Chao , Meng, Fanwei , Yang, Fan , Zhang, Xin et al. Rare Earth Metal (La, Ce, Nd, Eu) Doped Cu/Zr-PILC Catalysts for the Efficient NH3-SCR at Low Temperature . | COMBUSTION SCIENCE AND TECHNOLOGY , 2023 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
使用膜分离处理含油废水过程中,膜表面油污残留是制约应用的关键问题.对基膜表面进行亲水改性是提高分离效率与减少油污吸附的有效方法.本研究利用二苯甲酮光交联反应的特性,在基膜表面共价交联了含有2-甲基丙烯酰氧乙基磷酸胆碱(MPC)的两性离子聚合物,在大幅度提高了膜表面的亲水性的同时确保了亲水层的稳定性.油水分离膜呈现超亲水的性质,纯水通量可提高至4.7×104 L/(m2·h),通量恢复率从90.0％提升至99.8％.由于在基膜与两性离子聚合物间构建了稳定的共价键,膜表面的亲水性在强酸与强碱的清洗后依然能够保持,该研究为稳定的油水分离膜表面亲水改性提供了新策略.
Keyword ：
共价交联 共价交联 超亲水 超亲水 油水分离 油水分离 二苯甲酮 二苯甲酮 两性离子聚合物 两性离子聚合物
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 陈聪 , 杨紫云 , 赵博远 et al. 紫外诱导超亲水油水分离膜的构建及其性能研究 [J]. | 膜科学与技术 , 2022 , 42 (6) : 101-109 . |
| MLA | 陈聪 et al. "紫外诱导超亲水油水分离膜的构建及其性能研究" . | 膜科学与技术 42 . 6 (2022) : 101-109 . |
| APA | 陈聪 , 杨紫云 , 赵博远 , 刘巧鸿 , 叶青 , 安全福 . 紫外诱导超亲水油水分离膜的构建及其性能研究 . | 膜科学与技术 , 2022 , 42 (6) , 101-109 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
The Ba-CMK-3(x) (x was the Ba(NO3)2:CMK-3 mass ratio and equals to 5, 10, and 15 wt%) samples were prepared by the incipient impregnation method, which were used for the adsorption of NO + O2 at room temperature. The samples were characterized by the XRD, BET, TEM, TPD, TG, and DRIFTS techniques. The results showed that the CMK-3 and Ba-CMK-3(x) samples possessed an ordered two-dimensional hexagonal mesoporous structure, and Ba was uniformly dispersed on the surface of CMK-3. After Ba doping, the surface areas and pore size distributions of the Ba-CMK-3(x) samples were altered due to the synergistic effect of partial blocking of the channels by Ba and partial etching of the carbon materials by O2 produced from Ba(NO2)3 decomposition at high temperatures. The sequence in NO adsorption capacity was Ba-CMK-3(10) (108.1 ± 0.55 mg/g) > Ba-CMK-3(15) (106.2 ± 0.72 mg/g) > Ba-CMK-3(5) (102.3 ± 1.33 mg/g) > CMK-3(88.8 ± 1.15 mg/g), with the Ba-CMK-3(10) sample showing the best (NO + O2) adsorption performance. We proposed the two main adsorption pathways in the process of NO adsorption: (i) NO reacted with O2 to form NO2, part of NO2 were weakly adsorbed on the surface hydroxyl groups, part of NO2 were adsorbed to form the nitrite and nitrate species, and the left NO2 was disproportionated to the NO, NO2-, and NO3- species; and (ii) NO was directly oxidized to the NO2- species by the oxygen-containing functional groups in carbon, and then some of the NO2- species were transformed to the NO3- species directly or via disproportionation. The regeneration efficiencies of the Ba-CMK-3(x) samples were slightly inferior to that of the CMK-3 sample.
Keyword ：
Barium doping Barium doping Adsorption mechanism Adsorption mechanism CMK-3 CMK-3 NO adsorption NO adsorption Ordered mesoporous carbon Ordered mesoporous carbon
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Wu Runping , Ye Qing , Wu Kai et al. Efficient abatement of NOx emitted from automotive engines via adsorption on the Ba-CMK-3 adsorbents. [J]. | Environmental science and pollution research international , 2021 , 28 (17) : 21369-21380 . |
| MLA | Wu Runping et al. "Efficient abatement of NOx emitted from automotive engines via adsorption on the Ba-CMK-3 adsorbents." . | Environmental science and pollution research international 28 . 17 (2021) : 21369-21380 . |
| APA | Wu Runping , Ye Qing , Wu Kai , Dai Hongxing . Efficient abatement of NOx emitted from automotive engines via adsorption on the Ba-CMK-3 adsorbents. . | Environmental science and pollution research international , 2021 , 28 (17) , 21369-21380 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
The composite of gold nanoparticles-graphene oxide (AuNPs-GO) was prepared and characterized by transmission electron microscope (TEM) and ultraviolet-visible(UV-vis) spectrophotometry, respectively. The composite was modified on the surface of a glassy carbon electrode (GCE). The mercapto-modified and guanine-rich DNA strand (T30695) was self-assembled on to gold nanoparticles on the surface of the electrode via Au-S bond. T30695 could combine with lead ions (Pb2+) to form a stable parallel G-quadruplex. The G-quadruplex further combined with hemin to form DNAzyme with peroxidase activity. On the basis of this, DNAzyme electrochemical sensor Pb2+ detection was prepared. The DNAzyme could catalyze the oxidation reaction of hydrogen peroxidetowardshydroquinone (HQ) to achieve the amplification of electrochemical signal and highly sensitive detection of Pb2+. Under the optimum conditions, the peak current of square-wave voltammetry (SWV) was linearly dependent on the logarithm of Pb2+ concentration ranging from 5. 0 x10(-9) mol/L to 1. 0 x10(-6) mol/L with a detection limit of 1. 0 x10(-9) mol/L (S/N = 3). The recovery of Pb2+ in real water sample was 96% -105%. The sensor possessed good reproducibility, stability and selectivity to Pb2+.
Keyword ：
Lead ion (II) Lead ion (II) Sensor Sensor DNAzyme DNAzyme Square-wave voltammetry Square-wave voltammetry
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Yang Rui , Fang Tian-Fang , Lu Li-Ping et al. Highly Sensitive Detection of Pb2+ Based on DNAzyme/AuNPs-GO Sensor by Square-Wave Voltammetry [J]. | CHINESE JOURNAL OF ANALYTICAL CHEMISTRY , 2021 , 49 (2) : 309-317 . |
| MLA | Yang Rui et al. "Highly Sensitive Detection of Pb2+ Based on DNAzyme/AuNPs-GO Sensor by Square-Wave Voltammetry" . | CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 49 . 2 (2021) : 309-317 . |
| APA | Yang Rui , Fang Tian-Fang , Lu Li-Ping , Ye Qing . Highly Sensitive Detection of Pb2+ Based on DNAzyme/AuNPs-GO Sensor by Square-Wave Voltammetry . | CHINESE JOURNAL OF ANALYTICAL CHEMISTRY , 2021 , 49 (2) , 309-317 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
制备了金纳米粒子-氧化石墨烯(AuNPs-GO)复合物,采用透射电镜(TEM)和紫外-可见吸收光谱(UV-Vis)对其进行了表征。将此复合物修饰到玻碳电极(GCE)表面,再通过Au—S键将巯基修饰的富含鸟嘌呤的DNA链(T30695)自组装到电极表面的金纳米粒子上。T30695可与Pb~(2+)结合形成稳定的平行G-四链体,此G-四链体再与氯化血红素(Hemin)结合形成具有过氧化物酶活性的DNA酶(DNAzyme),基于此制得Pb~(2+)敏感的DNA酶电化学传感器。形成的DNA酶可催化H_2O_2氧化对苯二酚(HQ),实现电化学信号的放大和Pb~(2+)的高灵敏检测。在优化的实验条件下,在...
Keyword ：
DNA酶 DNA酶 方波伏安法 方波伏安法 铅离子(Ⅱ) 铅离子(Ⅱ) 传感器 传感器
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 杨瑞 , 康天放 , 鲁理平 et al. 基于DNA酶/AuNPs-GO传感器方波伏安法高灵敏检测Pb~(2+) [J]. | 分析化学 , 2021 , 49 (02) : 309-317 . |
| MLA | 杨瑞 et al. "基于DNA酶/AuNPs-GO传感器方波伏安法高灵敏检测Pb~(2+)" . | 分析化学 49 . 02 (2021) : 309-317 . |
| APA | 杨瑞 , 康天放 , 鲁理平 , 叶青 . 基于DNA酶/AuNPs-GO传感器方波伏安法高灵敏检测Pb~(2+) . | 分析化学 , 2021 , 49 (02) , 309-317 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
本发明提供了铌改性有机层状双氧化物/氧化石墨烯纳米复合材料作为CO2吸附剂的制备方法和应用。首先制备具有良好结构的插层长碳链有机阴离子硬脂酸盐的有机层状双氢氧化物，通过原位法与氧化石墨烯(GO)进行复合，得到有机层状双氢氧化物/氧化石墨烯纳米复合材料，然后通过浸渍法将草酸铌(C10H5NbO20)负载于上述复合材料上，最终通过煅烧活化得到铌改性有机层状双氧化物/氧化石墨烯复合材料作为高温CO2吸附剂。本发明在宽的温度(200℃～300℃)范围内，对CO2(浓度为5vol.％～25vol.％)和N2(浓度为75vol.％～95vol.％)的混合气体具有较高的吸附能力，本发明吸附剂具有较高的比表面积和较好的热稳定性。
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 叶青 , 吴凯 , 王兰洋 et al. 铌改性有机层状双氧化物/氧化石墨烯纳米复合材料作为CO2吸附剂的制备方法和应用 : CN202110882164.1[P]. | 2021-08-02 . |
| MLA | 叶青 et al. "铌改性有机层状双氧化物/氧化石墨烯纳米复合材料作为CO2吸附剂的制备方法和应用" : CN202110882164.1. | 2021-08-02 . |
| APA | 叶青 , 吴凯 , 王兰洋 , 孟繁伟 . 铌改性有机层状双氧化物/氧化石墨烯纳米复合材料作为CO2吸附剂的制备方法和应用 : CN202110882164.1. | 2021-08-02 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
本发明提供了δ‑MnO2负载氧化氧化石墨烯Ag‑Gd复合型催化剂的方法和应用。采用溶胶‑凝胶法制备δ‑MnO2，然后将氧化石墨烯与Ag(银)‑Gd(钆)复合金属采用离子交换法负载到δ‑MnO2上，最后得到Ag‑Gd/GO/δ‑MnO2催化剂。其中GO的负载量为≤3.0wt％，Ag负载量≤1.0wt％，Gd负载量≤0.1wt％。本发明所制催化剂在温度(100～250℃)、空速(60, 000～240, 000h‑1)的情况下，对高浓度乙酸乙酯(1000～3000ppm)具有良好的催化消除效果(乙酸乙酯转化率95‑99％)和稳定性(反应50h活性不变)。本发明催化剂制备原料廉价和制备过程简单。
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 叶青 , 董宁 , 肖阳 et al. δ-MnO2负载氧化石墨烯与Ag-Gd复合型催化剂的方法和应用 : CN202110920789.2[P]. | 2021-08-11 . |
| MLA | 叶青 et al. "δ-MnO2负载氧化石墨烯与Ag-Gd复合型催化剂的方法和应用" : CN202110920789.2. | 2021-08-11 . |
| APA | 叶青 , 董宁 , 肖阳 , 张丹 . δ-MnO2负载氧化石墨烯与Ag-Gd复合型催化剂的方法和应用 : CN202110920789.2. | 2021-08-11 . |
| Export to | NoteExpress RIS BibTex |
Export
| Results： |
Selected to |
| Format： |
