• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Applied Polymer Science >Preparation and characterization of bipolar membranes modified using photocatalyst nano-TiO_2 and nano-ZnO
【24h】

Preparation and characterization of bipolar membranes modified using photocatalyst nano-TiO_2 and nano-ZnO

机译：光催化剂纳米TiO_2和纳米ZnO修饰的双极性膜的制备与表征

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The nano-ZnO and nano-TiO_2 were added into chitosan (CS) anion layer to prepare polyvinyl alcohol (PVA) - sodium alginate (SA)/ TiO _2-ZnO-CS (here, PVA:polyvinyl alcohol; SA:sodium alginate) bipolar membrane (BPM), which was characterized using scanning electron microscopy, atomic force microscopy (AFM), thermogravimetric analysis (TG), electric universal testing machine, contact angle measurer, and so on. Experimental results showed that nano-TiO_2-ZnO exhibited better photocatalytic property for water splitting at the interlayer of BPM than nano-TiO_2 or nano-ZnO. The membrane impedance and voltage drop (IR drop) of the BPM were obviously decreased under the irradiation of high-pressure mercury lamps. At a current density of 60 mA/cm~2, the cell voltage of PVA-SA/TiO _2-ZnO-CS BPM-equipped cell decreased by 1.0 V. And the cell voltages of PVA-SA/TiO_2-CS BPM-equipped cell and PVA-SA/ZnO-CS BPM-equipped cell were only reduced by 0.7 and 0.6 V, respectively. Furthermore, the hydrophilicity, thermal stability, and mechanical properties of the modified BPM were increased.
机译：将纳米ZnO和纳米TiO_2添加到壳聚糖（CS）阴离子层中以制备聚乙烯醇（PVA）-海藻酸钠（SA）/ TiO _2-ZnO-CS（此处，PVA：聚乙烯醇; SA：海藻酸钠）双极膜（BPM），其特征在于使用扫描电子显微镜，原子力显微镜（AFM），热重分析（TG），电动万能试验机，接触角测量仪等。实验结果表明，纳米TiO_2-ZnO对BPM中间层的水分解具有比纳米TiO_2或纳米ZnO更好的光催化性能。在高压汞灯的照射下，BPM的膜阻抗和电压降（IR降）明显降低。在60 mA / cm〜2的电流密度下，配备PVA-SA / TiO _2-ZnO-CS BPM的电池电压降低了1.0V。并且配备了PVA-SA / TiO_2-CS BPM的电池电压电池和配备PVA-SA / ZnO-CS BPM的电池分别仅降低了0.7 V和0.6V。此外，提高了改性BPM的亲水性，热稳定性和机械性能。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号