Fabrication and photo-electrocatalytic activity of black TiO2 embedded Ti/PbO2 electrode
Fabrication and photo-electrocatalytic activity of black TiO2 embedded Ti/PbO2 electrode
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黑色TiO2嵌入Ti/PbO2电极的制备及其光电催化活性
DOI：
10.1007/s10800-017-1103-0
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发表时间：
2017-06
期刊：
影响因子：
--
通讯作者：
Xiufang Zhang
中科院分区：
文献类型：
--
作者：
Liyan Zhu;Yihua Tian;Maolin Li;Hongchao Ma;Chun Ma;Xiaoli Dong;Xiufang Zhang
采用电共沉积法制备了黑色TiO 2修饰的Ti/PbO 2电极，并通过透射电镜、扫描电镜、X射线衍射、光致发光和X射线光电子能谱对其进行了表征。结果表明，黑色TiO 2纳米粒子的加入促进了PbO 2多孔结构的形成，促进了[101]和[301]晶面的定向生长，抑制了析氧反应。蒽醌染料（活性艳蓝KN-R）的降解实验表明，黑色TiO 2嵌入Ti/PbO 2电极比Ti/PbO 2电极具有更高的光电催化活性。加速寿命试验表明，黑TiO 2镶嵌Ti/PbO 2电极的使用寿命远高于Ti/PbO 2电极。黑色TiO 2嵌入Ti/PbO 2电极的脱色效率和稳定性的增强归因于多孔PbO 2结构的形成、光电协同效应的存在、析氧反应的抑制以及PbO 2涂层内应力的减弱。黑色TiO 2嵌入Ti/PbO 2电极被认为是一种很有前途的有机污染物处理阳极.图形摘要由于黑色TiO 2的引入，黑色TiO 2嵌入Ti/PbO 2电极在降解蒽醌染料水溶液（活性艳蓝KN-R）的PEC过程中表现出显著的光电协同作用。
Black TiO2-modified Ti/PbO2 electrode was fabricated by the electro-codeposition method and characterized by transmission electron micrographs, scanning electron microscope, X-ray diffraction, photoluminescence, and X-ray photoelectron spectroscopy. The results indicated that the incorporation of black TiO2 nanoparticles facilitated the formation of porous PbO2 architecture, improved the oriented growth of [101] and [301] planes, and inhibited the oxygen evolution reaction. The degradation experiment of anthraquinone dye (reactive brilliant blue KN-R) indicated that black TiO2 embedded Ti/PbO2 electrode has higher photo-electrocatalytic activity than that of Ti/PbO2 electrode. Furthermore, the accelerated life test showed that the service life of black TiO2 embedded Ti/PbO2 electrode was much longer than that of Ti/PbO2 electrode. The enhancement of decolorization efficiency and stability for black TiO2 embedded Ti/PbO2 electrodes can be attributed to the formation of porous PbO2 architecture, the existence of photoelectric synergy, inhibition of the oxygen evolution reaction, and weakening of internal stress in PbO2 coatings. The black TiO2 embedded Ti/PbO2 electrode is considered as a promising anode for the treatment of organic pollutants.Graphical AbstractThe black TiO2 embedded Ti/PbO2 electrode showed significant photoelectric synergy in PEC process for degradation of anthraquinone dye aqueous solution (reactive brilliant blue KN-R) owing to introduction of black TiO2.
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