材料科学
三元运算
可见光谱
阳极氧化
锐钛矿
光电流
纳米颗粒
分解水
纳米管
化学工程
制氢
吸收(声学)
光催化
纳米技术
氢
光电子学
复合材料
催化作用
化学
有机化学
计算机科学
碳纳米管
铝
程序设计语言
工程类
作者
Zeyang Zhang,Jiangjian Fu,Qiang Cai,Sheng Lin,Yinhuan Chen,Lan Sun,Yuekun Lai,Yan-Ling Hu,Fei Shen,Changjian Lin
标识
DOI:10.1002/celc.202001489
摘要
Abstract The ternary In 2 O 3 −Ag−TiO 2 composites based on anatase TiO 2 nanotube arrays (TNTs) were synthesized to extend the light responsive region, enhance the visible light absorption, reduce the recombination rate of charge carriers and promote the efficiency of water splitting for H 2 evolution. Highly ordered TNTs were first prepared by electrochemical anodization of Ti sheets. Ag nanoparticles with a diameter of about 20 nm were then uniformly deposited inside and on the orifice of the TNTs. In 2 O 3 nanoparticles synthesized through a solvent‐thermal method were subsequently modified on the Ag−TNTs using an ultrasound‐assisted electrophoresis method. In 2 O 3 −Ag−TNTs composites exhibited enhanced visible light absorption and photocurrent when compared to binary Ag−TNTs and In 2 O 3 −TNTs. As a result, the optimal hydrogen generation rate using the In 2 O 3 −Ag−TNTs composite under visible light irradiation was 1.92 μmol cm −2 h −1 , 5 times higher than that of the pure TNTs.
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