光催化
锐钛矿
苯酚
基质(水族馆)
化学工程
降级(电信)
化学
电解质
纳米技术
纳米结构
原位
催化作用
材料科学
电极
有机化学
电信
海洋学
物理化学
计算机科学
工程类
地质学
作者
Zheng Zhang,Xuelei Li,Ruishi Zhang,Zhumin Zhang,Jianglong Yu
出处
期刊:Inorganic Chemistry
[American Chemical Society]
日期:2019-05-16
卷期号:58 (11): 7303-7309
被引量:14
标识
DOI:10.1021/acs.inorgchem.9b00440
摘要
TiO2 nanostructures that feature a two-dimensional (2D) morphology have attracted extensive attention in environment processing and energy conversion fields owing to their peculiarly large surface area and superior transfer efficiency of photogenerated carriers. In this work, we proposed a hybrid approach including a plasma electrolyte oxidation (PEO) and ion exchange strategy to in situ synthesize TiO2 nanosheets on a flexible Ti mesh substrate, in which the layered Na2Ti2O5 nanosheets were fabricated as a template. The TiO2 nanosheets are crystalline anatase phase and exhibit excellent photocatalytic activity and stability in removing phenol. With the modification of the Pt cocatalyst, the phenol degradation performance has been significantly enhanced. More importantly, the in situ grown TiO2 nanosheets on the flexible Ti mesh provide strong substrate adhesion that enables superior photocatalytic stability for cyclic degradation of phenol. It can be expected that the synthetic strategy proposed in this work can pave a solid way toward the in situ growth of various TiO2-based composite nanophotocatalysts with sufficient active sites and excellent photocatalytic properties, and thus, it will open up more opportunities for environment processing and energy conversion.
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