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用于储能设备的一种新型高导电性和高选择性质子交换膜 Article

Kang Huang, Shuhao Lin, Yu Xia, Yongsheng Xia, Feiyan Mu, Yuqin Lu, Hongyan Cao, Yixing Wang, Weihong Xing, Zhi Xu

《工程（英文）》 2023年 第28卷 第9期   页码 69-78 doi: 10.1016/j.eng.2022.11.008

摘要：

Ion conductive membranes (ICMs) with highly conductive proton selectivity are of significant importance and greatly desired for energy storage devices. However, it is extremely challenging to construct fast proton-selective transport channels in ICMs. Herein, a membrane with highly conductive proton selectivity was fabricated by incorporating porous carbon sieving nanospheres with a hollow structure (HCSNs) in a polymer matrix. Due to the precise ion sieving ability of the microporous carbon shells and the fast proton transport through their accessible internal cavities, this advanced membrane presented a proton conductivity (0.084 S·cm−1) superior to those of a commercial Nafion 212 (N212) membrane (0.033 S·cm−1) and a pure polymer membrane (0.049 S·cm−1). The corresponding proton selectivity of the membrane (6.68 × 105 S·min·cm−3) was found to be enhanced by about 5.9-fold and 4.3-fold, respectively, compared with those of the N212 membrane (1.13 × 105 S·min·cm−3) and the pure membrane (1.56 × 105 S·min·cm−3). Low-field nuclear magnetic resonance (LF-NMR) clearly revealed the fast proton-selective transport channels enabled by the HCSNs in the polymeric membrane. The proposed membrane exhibited an outstanding energy efficiency (EE) of 84% and long-term stability over 1400 cycles with a 0.065% capacity decay per cycle at 120 mA·cm−2 in a typical vanadium flow battery (VFB) system.

关键词： Ion conductive membrane     Hollow carbon sieving nanosphere     Proton transport channel     Flow battery    

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Ion-imprinted silica gel and its dynamic membrane for nickel ion removal from wastewaters

Jiehui Zeng, Jianxian Zeng, Hu Zhou, Guoqing Liu, Zhengqiu Yuan, Jian Jian

《化学科学与工程前沿（英文）》 2020年 第14卷 第6期   页码 1018-1028 doi: 10.1007/s11705-020-1915-z

摘要： An ion-imprinted sorbent (IIP) was prepared by using Ni as template, 3-[2-(2-aminoethylamino) ethylamino] propyl-trimethoxysilane as functional monomer, and silica gel as carrier. The adsorption performance of IIP towards Ni was investigated. IIP showed a higher adsorption capacity than that of non-imprinted sorbent, and it also exhibited high selectivity for Ni in the presence of Cu and Zn ions. Then, IIP was used to form a dynamic membrane onto the surface of ceramic membrane for treatment of electroplating wastewater containing Ni . Compared with ceramic membrane, IIP dynamic membrane had much higher steady membrane flux, and also rejected Ni to obtain a lower concentration of Ni in the permeate fluid. Perhaps it is suitable for future practice applications.

关键词： ion-imprinted     nickel ion     dynamic membrane     adsorption    

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Structural engineering of transition metal-based nanostructured electrocatalysts for efficient water splitting

Yueqing Wang, Jintao Zhang

《化学科学与工程前沿（英文）》 2018年 第12卷 第4期   页码 838-854 doi: 10.1007/s11705-018-1746-3

摘要： Water splitting is a highly promising approach for the generation of sustainable, clean hydrogen energy. Tremendous efforts have been devoted to exploring highly efficient and abundant metal oxide electrocatalysts for oxygen evolution and hydrogen evolution reactions to lower the energy consumption in water splitting. In this review, we summarize the recent advances on the development of metal oxide electrocatalysts with special emphasis on the structural engineering of nanostructures from particle size, composition, crystalline facet, hybrid structure as well as the conductive supports. The special strategies relay on the transformation from the metal organic framework and ion exchange reactions for the preparation of novel metal oxide nanostructures with boosting the catalytic activities are also discussed. The fascinating methods would pave the way for rational design of advanced electrocatalysts for efficient water splitting.

关键词： water splitting     structure engineering     metal organic framework     ion exchange     synergistic effect     hybrid structure     conductive supports    

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Effect of adding a smart potassium ion-responsive copolymer into polysulfone support membrane on theperformance of thin-film composite nanofiltration membrane

Meibo He, Zhuang Liu, Tong Li, Chen Chen, Baicang Liu, John C. Crittenden

《化学科学与工程前沿（英文）》 2019年 第13卷 第2期   页码 400-414 doi: 10.1007/s11705-018-1757-0

摘要： Thin-film composite (TFC) nanofiltration (NF) membranes were fabricated via the interfacial polymerization of piperazine (PIP) and 1,3,5-benzenetricarbonyl trichloride on polysulfone (PSf) support membranes blended with K -responsive poly( -isopropylacryamide-co-acryloylamidobenzo-15-crown-5) (P(NIPAM-co-AAB C )). Membranes were characterized by attenuated total reflection Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, atomic force microscope, scanning electron microscope, contact angle, and filtration tests. The results showed that: (1) Under K -free conditions, the blended P(NIPAM-co-AAB C )/PSf supports had porous and hydrophilic surfaces, thereby producing NF membranes with smooth surfaces and low MgSO rejections; (2) With K in the PIP solution, the surface roughness and water permeability of the resultant NF membrane were increased due to the K -induced transition of low-content P(NIPAM-co-AAB C ) from hydrophilic to hydrophobic; (3) After a curing treatment at 95 °C, the improved NF membrane achieved an even higher pure water permeability of 10.97 L·m ·h ·bar under 200 psi. Overall, this study provides a novel method to improve the performance of NF membranes and helps understand the influence of supports on TFC membranes.

关键词： nanofiltration     interfacial polymerization     support membrane     potassium ion-responsive     thin-film composite    

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Arsenic (V) removal from groundwater by GE-HL nanofiltration membrane: effects of arsenic concentration

Xiaowei WANG, Wenjun LIU, Weifang MA, Desheng LI,

《环境科学与工程前沿（英文）》 2009年 第3卷 第4期   页码 428-433 doi: 10.1007/s11783-009-0146-9

摘要： A laboratory-scale investigation was performed to study arsenic (As (V)) removal by negatively charged GE-HL nanofiltration (NF) membrane in simulated drinking water. Effects of As (V) concentration (0–200μg·L), pH, and co-ions and counter-ions were investigated. The NF membrane presented good stability, and the rejection rates exceeded 90%. The rejection rates of As (V) decreased with the increase of As (V) concentration, while it increased with the increase of pH (reached 96% at pH 6.75). Moreover, a negative relationship was observed between the co-existing ions of Cl, Na, SO, and Ca and the removal of As (V), in which bivalent ions presented more significant effects than monovalent ions.

关键词： nanofiltration (NF)     rejection rate     co-existing ion     co-ion     counter-ion    

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Preparation and properties of gel membrane containing porous PVDF-HFP matrix and cross-linked PEG forlithium ion conduction

ZHANG Mei, CUI Zhenyu, ZHU Baoku, HAN Gaige, XU Youyi, ZHANG Aiqing

《化学科学与工程前沿（英文）》 2008年 第2卷 第1期   页码 89-94 doi: 10.1007/s11705-008-0011-6

摘要： Lithium ion conducting membranes are the key materials for lithium batteries. The lithium ion conducting gel polymer electrolyte membrane (Li-GPEM) based on porous poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) matrix and cross-linked PEG network is prepared by a typical phase inversion process. By immersing the porous PVDF-HFP membrane in liquid electrolyte containing poly(ethylene glycol) diacrylate (PEGDA) and an initiator to absorb the liquid electrolyte at 25°C, and then thermally cross-linking at 60°C, the Li-GPEM is fabricated successfully. The measurements on its weight loss, mechanical and electrochemical properties reveal that the obtained Li-GPEM has better overall performance than the liquid and blend gel systems used as conductive media in lithium batteries. The ionic conductivity of the fabricated Li-GPEM can reach as high as 2.25 × 10 S/cm at 25°C.

关键词： ethylene     PEGDA     inversion     network     initiator    

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Enhancement of the electrocatalytic oxidation of antibiotic wastewater over the conductive black carbon-PbO

Xiangyu Wang, Yu Xie, Guizhen Yang, Jiming Hao, Jun Ma, Ping Ning

《环境科学与工程前沿（英文）》 2020年 第14卷 第2期 doi: 10.1007/s11783-019-1201-9

摘要： • A novel conductive carbon black modified lead dioxide electrode is synthesized. • The modified PbO2 electrode exhibits enhanced electrochemical performances. • BBD method could predict optimal experiment conditions accurately and reliably. • The modified electrode possesses outstanding reusability and safety. The secondary pollution caused by modification of an electrode due to doping of harmful materials has long been a big concern. In this study, an environmentally friendly material, conductive carbon black, was adopted for modification of lead dioxide electrode (PbO2). It was observed that the as-prepared conductive carbon black modified electrode (C-PbO2) exhibited an enhanced electrocatalytical performance and more stable structure than a pristine PbO2 electrode, and the removal efficiency of metronidazole (MNZ) and COD by a 1.0% C-PbO2 electrode at optimal conditions was increased by 24.66% and 7.01%, respectively. Results revealed that the electrochemical degradation of MNZ wastewater followed pseudo-first-order kinetics. This intimates that the presence of conductive carbon black could improve the current efficiency, promote the generation of hydroxyl radicals, and accelerate the removal of MNZ through oxidation. In addition, MNZ degradation pathways through a C-PbO2 electrode were proposed based on the identified intermediates. To promote the electrode to treat antibiotic wastewater, optimal experimental conditions were predicted through the Box-Behnken design (BBD) method. The results of this study suggest that a C-PbO2 electrode may represent a promising functional material to pretreat antibiotic wastewaters.

关键词： Conductive carbon black     PbO2 electrode     Metronidazole     Electrochemical oxidation     Box-Behnken design-response surface method    

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Utilizing transparent and conductive SnO

Jing Gu, Hongtao Yu, Xie Quan, Shuo Chen, Junfeng Niu

《环境科学与工程前沿（英文）》 2020年 第14卷 第4期 doi: 10.1007/s11783-020-1251-z

摘要： Abstract • A novel Z-scheme Si-SnO2-TiOx with SnO2 as electron mediator is first constructed. • Transparent and conductive SnO2 can pass light through and promote charge transport. • VO from SnO2 and TiOx improve photoelectrochemical performances. • Efficient photocatalytic degradations originate from the Z scheme construction. Z-scheme photocatalysts, with strong redox ability, have a great potential for pollutants degradation. However, it is challenging to construct efficient Z-scheme photocatalysts because of their poor interfacial charge separation. Herein, by employing transparent and conductive SnO2 as electron mediator to pass light through and promote interfacial charge transportation, a novel Z-scheme photocatalyst Si-SnO2-TiOx (1

关键词： Z-scheme photocatalyst     Tin oxide     Electron mediator     Organic pollutant    

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新型通用离子交换膜的研究与实践

汪耀明,吴亮,徐铜文

《中国工程科学》 2014年 第16卷 第12期   页码 76-86

摘要：

基于离子交换膜的电膜技术，由于其独特的离子传递特性，可以进行离子物系的分离分级，在清洁生产、节能减排、环境保护、能量转换等方面有着广泛的应用前景。然而，目前国内相关均相离子膜产品尚处于起步阶段，以日本为首的国家对我国进行相关技术封锁和价格垄断。正是基于这样的产业背景和现实意义，开发出新型的均相离子膜制备路线尤为重要。本课题组提出了一种简单而通用的侧链型离子化芳香族聚合物的合成方法，即“离子单体聚酰基化”均相离子交换膜制备路线，并通过ATRP法来设计离子交换膜的主链憎水、侧链亲水的接枝结构，通过对接枝密度和接枝长度进行调节，实现对膜性能的调控，以满足不同的应用过程对膜性能的要求。此种均相离子交换膜的制备工艺及产业化生产攻关，可以打破以日本为首的国家对我国离子膜产品的技术封锁，实现具有我国自主知识产权的离子膜技术的产业化。制备条件温和、制备工艺简单、快捷，而且整个过程没有传统方法中常用的季铵化或磺化步骤，有效地简化工艺和降低环境污染，可用于扩散渗析、普通电渗析以及双极膜电渗析过程对高性能离子交换膜材料的需求。该系列离子交换膜在特种废水处理、有机酸生产、氨基酸分离纯化、重金属废水处理等诸多领域得到了广泛的使用，均取得了较为满意的使用效果。

关键词： 离子交换膜     电渗析     有机酸     氨基酸     重金属废水    

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Preparation and sedimentation behavior of conductive polymeric nanoparticles

WANG Jixiao, LIU Rui, ZHANG Xiaoyan, ZHOU Zhibin, WANG Zhi, WANG Shichang

《化学科学与工程前沿（英文）》 2008年 第2卷 第3期   页码 231-235 doi: 10.1007/s11705-008-0055-7

摘要： A facile route to prepare FeO/polypyrrole (PPY) core-shell magnetic nanoparticles was developed. FeO nanoparticles were first prepared by a chemical co-precipitation method, and then FeO/PPY core-shell magnetic composite nanoparticles were prepared by in-situ polymerization of pyrrole in the presence of FeO nanoparticles. The obtained nanoparticles were characterized by scanning electronic microscopy (SEM), transmission electronic microscopy (TEM) and laser particle size analyzer. The images indicate that the size of FeO particles is about 10 nanometers, and the particles are completely covered by PPY. The FeO/PPY core-shell magnetic composite nanoparticles are about 100 nanometers and there are several FeO particles in one composite nanoparticle. The yield of the composite nanoparticles was about 50%. The sedimentation behavior of FeO/PPY core-shell magnetic nanoparticles in electrolyte and soluble polymer solutions was characterized. The experimental results indicate that the sedimentation of particles can be controlled by adjusting electrolyte concentration, solvable polymers and by applying a foreign field. This result is useful in preparing gradient materials and improving the stability of suspensions.
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Salinity exchange between seawater/brackish water and domestic wastewater through electrodialysis for potable water

《环境科学与工程前沿（英文）》 2023年 第17卷 第2期 doi: 10.1007/s11783-023-1616-1

摘要：

● Present a general concept called “salinity exchange”.

关键词： Desalination     Potable water reuse     Ion-exchange membrane     Salinity gradient energy     Wastewater discharge    

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靶向膜蛋白的抗体药物开发的新进展 Review

Georgina To’a Salazar, 黄子逸, 张凝艳, 张学光, 安志强

《工程（英文）》 2021年 第7卷 第11期   页码 1541-1551 doi: 10.1016/j.eng.2020.11.013

摘要：

在疾病干预的众多膜蛋白靶标中，G蛋白偶联受体（GPCR）作为人体内最大的膜受体蛋白家族，成为很多药物的重要靶点，其次是离子通道、转运蛋白和激酶等。膜蛋白在细胞信号转导和运输中发挥了关键作用，当前药物研发面临的挑战在于进一步发掘此类膜蛋白的潜在靶点的干预价值，开发治疗性抗体药物。鉴于特异性抗体能够识别膜蛋白的灵敏特性，以及随着基因工程技术的进步，对已有抗体进行加工改造可获得适应多个靶点蛋白的特异性抗体。然而，成功分离特异靶向膜蛋白抗体取决于一系列因素。我们更易研制和识别结构简单且具有长片段胞外区的抗体分子，但对于高难度的靶点蛋白，如GPCR和其他复杂膜蛋白往往难以得到具有活性的候选抗体。目前若要开发针对复杂膜蛋白（如GPCR、离子通道、转运蛋白和激酶）的抗体药物，必须从抗原靶点设计、抗体筛选策略、先导抗体优化及药物研发模式方面进行考虑。深入研究靶标膜蛋白的结构有助于推进治疗性抗体药物的开发进程。本文概述了抗体靶向复杂膜蛋白的优势和挑战，以及膜蛋白抗原制备和抗体研发策略的最新进展。

关键词： 抗体治疗     复杂膜蛋白     离子通道     转运蛋白     膜结合酶     G蛋白偶联受体     药物发现    

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Oil bleed from elastomeric thermal silicone conductive pads

Yuqi Chen,Yakai Feng,Jingqi Zhao,Jingbo Shen,Menghuang Feng

《化学科学与工程前沿（英文）》 2016年 第10卷 第4期   页码 509-516 doi: 10.1007/s11705-016-1586-y

摘要： Oil bleed is a serious problem in elastomeric thermal silicone conductive pads. The components of the oil bleed and the effect of the silicone chemical parameters on the amount of oil bleed have been determined. The main components of oil bleeds are the uncrosslinked silicones in the cured resins, which include the unreacted silicone materials and the macromolecular substances produced by the hydrosilylation reaction. Cured resins with a high crosslinking density and a high molecular weight of vinyl silicone residues had a lower amount of oil bleed. In addition, a low Si-H content also reduced the amount of oil bleed.

关键词： oil bleed     crosslinking density     molecular weight     vinyl silicones     hydrosilicones    

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exoelectrogen-methanogen evolution from low-strength wastewater in an up-flow biofilm reactor with conductive

Zechong Guo, Lei Gao, Ling Wang, Wenzong Liu, Aijie Wang

《环境科学与工程前沿（英文）》 2018年 第12卷 第4期 doi: 10.1007/s11783-018-1074-3

摘要：

Methane yield increased 22 times from low-strength wastewater by applying conductive fillers.

Conductive fillers accelerated the start-up stage of anaerobic biofilm reactor.

Conductive fillers altered methanogens structure.

关键词： Low-strength wastewater     Methane production     Conductive filler     Microbial community structure    

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Cross-stacked super-aligned carbon nanotube/activated carbon composite electrodes for efficient water purification via capacitive deionization enhanced ultrafiltration

Min Li, Shuai Liang, Yang Wu, Meiyue Yang, Xia Huang

《环境科学与工程前沿（英文）》 2020年 第14卷 第6期 doi: 10.1007/s11783-020-1286-1

摘要： Abstract • A high-performance electrode was prepared with super-aligned carbon nanotubes. • SACNT/AC electrode achieved a ~100% increase in desalination capacity and rate. • SACNT/AC electrode achieved a ~26% increase in charge efficiency. • CUF process with SACNT/AC achieved an up to 2.43-fold fouling reduction. • SACNT/AC imparts overall improved water purification efficiency. The practical application of the capacitive deionization (CDI) enhanced ultrafiltration (CUF) technology is hampered due to low performance of electrodes. The current study demonstrated a novel super-aligned carbon nanotube (SACNT)/activated carbon (AC) composite electrode, which was prepared through coating AC on a cross-stacked SACNT film. The desalination capability and water purification performance of the prepared electrode were systematically investigated at different applied voltages (0.8–1.2 V) with a CDI system and a CUF system, respectively. In the CDI tests, as compared with the control AC electrode, the SACNT/AC electrode achieved an approximately 100% increase in both maximum salt adsorption capacity and average salt adsorption rate under all the applied voltage conditions, demonstrating a superior desalination capability. Meanwhile, a conspicuous increase by an average of ~26% in charge efficiency was also achieved at all the voltages. In the CUF tests, as compared with the control run at 0 V, the treatment runs at 0.8, 1.0, and 1.2 V achieved a 2.40-fold, 2.08-fold, and 2.43-fold reduction in membrane fouling (calculated according to the final transmembrane pressure (TMP) data at the end of every purification stage), respectively. The average TMP increasing rates at 0.8, 1.0, and 1.2 V were also roughly two times smaller than that at 0 V, indicating a dramatical reduction of membrane fouling. The SACNT/AC electrode also maintained its superior desalination capability in the CUF process, resulting in an overall improved water purification efficiency.

关键词： Carbon nanotube     Super aligned     Conductive membrane     Capacitive deionization     Ultrafiltration     Desalination    

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标题 作者 时间 类型 操作

用于储能设备的一种新型高导电性和高选择性质子交换膜

Kang Huang, Shuhao Lin, Yu Xia, Yongsheng Xia, Feiyan Mu, Yuqin Lu, Hongyan Cao, Yixing Wang, Weihong Xing, Zhi Xu

期刊论文

Ion-imprinted silica gel and its dynamic membrane for nickel ion removal from wastewaters

Jiehui Zeng, Jianxian Zeng, Hu Zhou, Guoqing Liu, Zhengqiu Yuan, Jian Jian

期刊论文

Structural engineering of transition metal-based nanostructured electrocatalysts for efficient water splitting

Yueqing Wang, Jintao Zhang

期刊论文

Effect of adding a smart potassium ion-responsive copolymer into polysulfone support membrane on theperformance of thin-film composite nanofiltration membrane

Meibo He, Zhuang Liu, Tong Li, Chen Chen, Baicang Liu, John C. Crittenden

期刊论文

Arsenic (V) removal from groundwater by GE-HL nanofiltration membrane: effects of arsenic concentration

Xiaowei WANG, Wenjun LIU, Weifang MA, Desheng LI,

期刊论文

Preparation and properties of gel membrane containing porous PVDF-HFP matrix and cross-linked PEG forlithium ion conduction

ZHANG Mei, CUI Zhenyu, ZHU Baoku, HAN Gaige, XU Youyi, ZHANG Aiqing

期刊论文

Enhancement of the electrocatalytic oxidation of antibiotic wastewater over the conductive black carbon-PbO

Xiangyu Wang, Yu Xie, Guizhen Yang, Jiming Hao, Jun Ma, Ping Ning

期刊论文

Utilizing transparent and conductive SnO

Jing Gu, Hongtao Yu, Xie Quan, Shuo Chen, Junfeng Niu

期刊论文

新型通用离子交换膜的研究与实践

汪耀明,吴亮,徐铜文

期刊论文

Preparation and sedimentation behavior of conductive polymeric nanoparticles

WANG Jixiao, LIU Rui, ZHANG Xiaoyan, ZHOU Zhibin, WANG Zhi, WANG Shichang

期刊论文

Salinity exchange between seawater/brackish water and domestic wastewater through electrodialysis for potable water

期刊论文

靶向膜蛋白的抗体药物开发的新进展

Georgina To’a Salazar, 黄子逸, 张凝艳, 张学光, 安志强

期刊论文

Oil bleed from elastomeric thermal silicone conductive pads

Yuqi Chen,Yakai Feng,Jingqi Zhao,Jingbo Shen,Menghuang Feng

期刊论文

exoelectrogen-methanogen evolution from low-strength wastewater in an up-flow biofilm reactor with conductive

Zechong Guo, Lei Gao, Ling Wang, Wenzong Liu, Aijie Wang

期刊论文

Cross-stacked super-aligned carbon nanotube/activated carbon composite electrodes for efficient water purification via capacitive deionization enhanced ultrafiltration

Min Li, Shuai Liang, Yang Wu, Meiyue Yang, Xia Huang

期刊论文