Rutile TiO2 Nanoparticles with Oxygen Vacancy for Photocatalytic Nitrogen Fixation

被引：76

作者：

Liu, Qing-Yu ^{[1
]}

Wang, Hao-Dong ^{[1
]}

Tang, Rui ^{[1
]}

Cheng, Quan ^{[1
]}

Yuan, Yong-Jun ^{[1
]}

机构：

[1] Hangzhou Dianzi Univ, Coll Mat & Environm Engn, Hangzhou 310018, Peoples R China

来源：

ACS APPLIED NANO MATERIALS | 2021年 / 4卷 / 09期

基金：

中国国家自然科学基金;

关键词：

oxygen vacancy; nitrogen fixation; photocatalysis; titanium dioxide; nanoparticles; AMMONIA; REDUCTION; WATER; NH3;

D O I：

10.1021/acsanm.1c02184

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Limited by the relatively low specific surface area and small quantity of active sites of semiconductor photocatalysts, the photocatalytic nitrogen fixation performance remains very low, as expected. Herein, rutile titanium dioxide (TiO2) nanoparticles with large specific surface area and abundant oxygen vacancy were designed for photocatalytic nitrogen fixation. The TiO2 photocatalysts exhibit high photocatalytic performance for nitrogen fixation in the presence of methanol as the hole scavenger, with the highest ammonia generation rate of 116 mu mol.g(-1).h(-1), exceeding 6.5 times that of P25. This study provides a simple and facile method to prepare highly reactive TiO2 photocatalysts for enhanced photocatalytic nitrogen fixation performance.

引用

页码：8674 / 8679

页数：6

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