I掺杂TiO2纳米管阵列平面光催化燃料电池的性能研究

doi:10.3969/j.issn.1000-5641.201922019

摘要/Abstract

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)

中图分类号:

TM911.4

周君, 席清华, 黄宜强, 聂耳, 孙卓. I掺杂TiO₂纳米管阵列平面光催化燃料电池的性能研究[J]. 华东师范大学学报（自然科学版）, 2021, 2021(1): 165-175.

Jun ZHOU, Qinghua XI, Yiqiang HUANG, Er NIE, Zhuo SUN. Study on the performance of I-doped TiO₂ nanotube arrays for planar photocatalytic fuel cells[J]. Journal of East China Normal University(Natural Science), 2021, 2021(1): 165-175.

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PFC结构	h⁺	·OH(h⁺)	·OH(HR)	SSO	OOS
p-PFC	24.2	20.4	36.5	3.8	15.2
f-PFC-1	18.1	12.4	30.5	7.6	31.4
f-PFC-2	38.5	22.0	23.1	8.8	27.5

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I掺杂TiO₂纳米管阵列平面光催化燃料电池的性能研究

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

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