华东师范大学学报(自然科学版) ›› 2021, Vol. 2021 ›› Issue (1): 165-175.doi: 10.3969/j.issn.1000-5641.201922019

• 化学化工 • 上一篇    

I掺杂TiO2纳米管阵列平面光催化燃料电池的性能研究

周君, 席清华, 黄宜强, 聂耳*(), 孙卓   

  1. 华东师范大学 纳光电集成与先进装备教育部工程研究中心, 上海 200062
  • 收稿日期:2019-12-18 出版日期:2021-01-25 发布日期:2021-01-28
  • 通讯作者: 聂耳 E-mail:enie@phy.ecnu.edu.cn
  • 基金资助:
    上海市科委社发处项目(19DZ1205102)

Study on the performance of I-doped TiO2 nanotube arrays for planar photocatalytic fuel cells

Jun ZHOU, Qinghua XI, Yiqiang HUANG, Er NIE*(), Zhuo SUN   

  1. Engineering Research Center for Nanophotonics and Advanced Instrument, Ministry of Education, East China Normal University, Shanghai 200062, China
  • Received:2019-12-18 Online:2021-01-25 Published:2021-01-28
  • Contact: Er NIE E-mail:enie@phy.ecnu.edu.cn

摘要:

采用阳极氧化法制备了I掺杂TiO2纳米管阵列(I-doped TiO2 Nanotubes Arrays, ITNA)光阳极, 该电极表现出比TNA更加优异的降解性能. 将ITNA与Pt电极组合得到的平面光催化燃料电池(planar Photocatalytic Fuel Cell, p-PFC)在亚甲基蓝(Methylene Blue, MB)浓度为6 mg·L–1、极板间距为1.0 cm时脱色率达到最大, 为93.1%. MB的降解发生在ITNA表面, 为限速步骤. 对比了p-PFC和传统PFC结构对MB和其他有机物的降解, p-PFC中h+和·OH的产生和传质优于其他结构, 具有更高的光催化性能.

关键词: 平面光催化燃料电池, 二氧化钛纳米管阵列, I掺杂, 亚甲基蓝

Abstract:

The photoanode of I-doped TiO2 nanotube arrays (ITNA) prepared by anodization exhibited better degradation performance than TNA. The planar photocatalytic fuel cell (p-PFC) obtained by combining ITNA and Pt electrodes achieved a maximum decolorization rate of 93.1% when the concentration of methylene blue (MB) was 6 mg·L–1and the electrode plate spacing was 1.0 cm. The degradation of MB occurred on the surface of ITNA, which was a rate-limiting step. Compared to other structures, p-PFC had a higher photocatalytic performance and better production of h+ and ·OH, while degrading MB and other organics.

Key words: planar photocatalytic fuel cell (p-PFC), TiO2 nanotubes arrays (TNA), I-doped, methylene blue (MB)

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