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dc.contributor.author陈晓
dc.contributor.author陈佳辉
dc.contributor.author陈日耀
dc.contributor.author李忠贵
dc.contributor.author周挺进
dc.contributor.author刘耀兴
dc.date.accessioned2018-11-26T07:28:06Z
dc.date.available2018-11-26T07:28:06Z
dc.date.issued2017-04-01
dc.identifier.citation高分子材料科学与工程,2017,(4):148-153
dc.identifier.issn1000-7555
dc.identifier.other10.16865/j.cnki.1000-7555.2017.04.026
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/163003
dc.description.abstract分别用未功能化的多壁碳纳米管(MWCNTs)、羟基化多壁碳纳米管(MWCNTs-OH)、羧基化多壁碳纳米管(MWCNTs-COOH)、磺酸基化多; 壁碳纳米管(MWCNTs-SO_3H)改性羧甲基纤维素钠(CMC)-聚乙烯醇(PVA)/壳聚糖(CS)-聚乙烯醇双极膜(BPM)的阳离子交换膜层; 。采用力学性能分析、接触角测定、电流密度-槽电压曲线等对改性前后双极膜的性能进行表征,并测定了改性前后双极膜中Fe~(3+)的流失量。结果表明,; 经功能化多壁碳纳米管改性后,双极膜的亲水性和力学性能得到了显著提高。功能化多壁碳纳米管和Fe~(3+)对催化中间界面层水解离有协同作用,大大提高; 了中间界面层水解离效率,降低了双极膜的膜阻抗和槽电压。此外,改性后双极膜中Fe~(3+)的流失量有了明显的下降,从而保持了双极膜结构和催化水解离; 性能的稳定性。
dc.description.abstractThe cationic exchange layers of the carboxymethyl cellulose (CMC)-; polyvinyl alcohol (PVA) /chitosan (CS) -polyvinyl alcohol bipolar; membranes (BPM) using glutaraldehyde as crosslinker and ferric chloride; as modifier, were modified by multi-walled carbon nanotubes (MWCNTs),; hydroxylated multi-walled carbon nanotubes (MWCNTs-OH), carboxylated; multi-walled carbon nanotubes (MWCNTs-COOH) and sulfonated multi-walled; carbon nanotubes (MWCNTs-SO_3H), respectively. The mechanical; properties, contact angle and electric current density-cell voltage; curve as well as the Fe~(3+) loss amount of the CMC-PVA/CS-PVA BPMs; before and after modification were compared. The experimental results; show that after modification by functionalized multi-walled carbon; nanotubes, both the hydrophilicity and mechanical properties of the; bipolar membrane are significantly improved. The functionalized; multi-walled carbon nanotubes and Fe~(3+) have a synergistic effect on; promoting water splitting in the intermediate layer, thus the water; splitting efficiency is greatly improved, and the membrane impedance and; cell voltage of bipolar membrane are reduced. In addition,; functionalized multi-walled carbon nanotubes existed in the bipolar; membrane are beneficial for retention rate of Fe~(3+) in BPMs during; electrolysis, and then to maintain the stability of the structure and; catalytic performance for water splitting of the BPMs.
dc.description.sponsorship福建省科技厅重点项目; 福州市科技局项目; 福建省自然科学基金资助项目
dc.language.isozh_CN
dc.subject双极膜
dc.subject多壁碳纳米管
dc.subject水解离
dc.subjectFe~(3+)流失量
dc.subjectbipolar membrane
dc.subjectmultiwalled carbon nanotube
dc.subjectwater splitting
dc.subjectFe~(3+)
dc.subjectloss amount
dc.title功能化多壁碳纳米管负载铁离子改性双极膜的制备与表征
dc.title.alternativePreparation and Characterization of Bipolar Membranes Modified by Functionalized Multiwalled Carbon Nanotubes Loaded with Fe~(3+)
dc.typeArticle


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