| 掺杂无机纳米材料光催化双极膜的制备与表征 |
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| 引用本文： | 谢鸿芳,肖艳春,李少斌,周美珍,陈震.掺杂无机纳米材料光催化双极膜的制备与表征[J].高分子材料科学与工程,2012(10):154-157. |
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| 作者姓名： | 谢鸿芳 肖艳春 李少斌 周美珍 陈震 |
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| 作者单位： | 宁德师范学院化学系;福建师范大学化学与材料学院 |
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| 基金项目： | 福建省发展改革委员会支助项目(闽发改资:2008762);宁德师范学院“服务海西建设”科研经费资助项目(2010H302);宁德市科技局科技计划资助项目(20100027);福建省教育厅科研资助项目(JB10184,JB11196) |
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| 摘 要： | 将柔性链聚乙烯醇(PVA)分别与刚性链天然高分子海藻酸钠(SA)和壳聚糖(CS)共混,以增强其柔韧性及双极膜界面层的相容性。然后分别以纳米无机半导体材料和戊二醛为交联剂,对PVA/SA和PVA/CS进行改性,制备了PVA-mSA/mCS双极膜。测定了双极膜的J-V曲线、膜阻抗、接触角和溶胀度。以扫描电镜对PVA-ZnO-SA/mCS膜成分与形貌作表征,膜厚约121μm,中间界面层厚约5μm。电子能谱图表明氧化锌均匀分布在阳膜层中。实验结果表明,采用纳米ZnO改性后双极膜的亲水性增强,具有更强的中间界面层水解离能力,较小的工作电压和较低的膜阻抗,可以广泛应用于绿色化学和环境治理。
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| 关 键 词： | 掺杂 纳米无机材料 双极膜 改性 表征 |
Preparation and Characterization of Dopping Nano-Materials in Photocatalytic Membrane |
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| Hongfang Xie,Yanchun Xiao,Shaobin Li,Meizhen Zhou,Zhen Chen.Preparation and Characterization of Dopping Nano-Materials in Photocatalytic Membrane[J].Polymer Materials Science & Engineering,2012(10):154-157. |
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| Authors: | Hongfang Xie Yanchun Xiao Shaobin Li Meizhen Zhou Zhen Chen |
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| Affiliation: | 1,2(1.Department of Chemistry,Ningde Normal University,Ningde 352100,China;2.College of Chemistry and Materials Science,Fujian Normal University,Fuzhou 350007,China) |
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| Abstract: | Polyvinylchloride(PVC)-mSA/mCS bipolar membrane(BPM) was prepared by the paste method.PVA/sodium alginate(SA) and PVA /chitosan(CS) were cross-linked by inorganic nano-materials and glutaraldehyde(GA),respectively.SEM photographs show that PVA-ZnO-SA/mCS BPM is consists of anion layer and cation layer,the thickness of the BPM is 121 μm,the interface of BPM is 5 μm.Electronic spectrum(EDS) indicates that ZnO well-distributed in cation layer.J-V curve and AC impedances of BPMs were investigated.It can be seen that PVA-ZnO-SA/mCS BPM shows lower working voltage,smaller membrane impedance,and ideal nano-ZnO modification effect.In addition,the dopping nano-ZnO improves the hydrophilic property and mechanical properties of the BPM.Therefore,PVA-ZnO-SA/mCS is an excellent BPM and can be widely used in the green chemistry and environmental management. |
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| Keywords: | dopping inorganic nano-materials bipolar membrane modification characterization |
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