TiO2 nanotube array modified with polypyrrole for efficient photoelectrocatalytic decolorization of methylene blue
TiO2 nanotube array modified with polypyrrole for efficient photoelectrocatalytic decolorization of methylene blue
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聚吡咯修饰的TiO2纳米管阵列用于亚甲基蓝的高效光电催化脱色
DOI：
10.1016/j.jallcom.2019.153128
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发表时间：
2020-04
影响因子：
6.2
通讯作者：
Ioannis S. Chronakis
中科院分区：
文献类型：
--
作者：
Jialin Zhang;Zengyuan Pang;Qian Sun;Xin Chen;Yanan Zhu;Mengjuan Li;JidongWang;Hua Qiu;Xiaoqiang Li;Yonggui Li;Ioannis S. Chronakis
In this work, polypyrrole (PPy) was in situ polymerized on the surface of TiO2nanotube array (TiO2NTA, with average pore diameter of 110 nm and length of 490–750 nm) using cyclic voltammetry method to develop the nanocomposite photoelectrode of PPy@TiO2NTA. The morphology and the physicochemical properties of the photoelectrode were characterized by SEM, XRD, FTIR, Raman Spectra, and XPS. It was found that the PPy modification enlarged the light adsorption range of the photoelectrode, as well as increased the photocurrent density under UV light irradiation. Furthermore, the performance of PPy@TiO2NTA photoelectrode was investigated for the decolorization of methylene blue (MB) by means of photocatalytic (PC), electrocatalytic (EC) and photoelectrocatalytic (PEC) degradation. The decolorization rate of MB using the PPy@TiO2NTA increased by 24.94% and 10.85% under PC and EC conditions, respectively, in comparison with the decolorization rate obtained using pristine TiO2NTA. The improved decolorization rate of MB was mainly attributed to the separation efficiency of electron-hole pairs originated from TiO2, and the enhanced utilization of visible-light due to the presence of PPy. Furthermore, the decolorization rate of MB under the PEC condition was also significantly improved, compared with the sum of the decolorization rate of PC and EC systems, indicating the synergistic effect of MB oxidation in the photoelectrocatalysis.
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影响因子：
6.2
作者：
M. Erol;T. Dikici;M. Toparli;E. Çeli̇k
通讯作者：
M. Erol;T. Dikici;M. Toparli;E. Çeli̇k
影响因子：
4.5
作者：
Rajkumar, D.;Song, Byung Joo;Kim, Jong Guk
通讯作者：
Kim, Jong Guk
影响因子：
22.1
作者：
Su, Jingyang;Zhu, Lin;Chen, Guohua
通讯作者：
Chen, Guohua
影响因子：
14
作者：
Popat, Ketul C.;Leoni, Lara;Desai, Tejal A.
通讯作者：
Desai, Tejal A.
影响因子：
5.2
作者：
Qingyao Wang;Zhiyuan Liu;Haoqiang Feng;Rencheng Jin;Shaohua Zhang;Shanmin Gao
通讯作者：
Qingyao Wang;Zhiyuan Liu;Haoqiang Feng;Rencheng Jin;Shaohua Zhang;Shanmin Gao