Controllable synthesis and enhanced photocatalytic activity of B-TiO 2 nanospheres

Micro & nano letters

article

Shumin Wang¹  Xiaoxia Yan¹  Dongmei Deng¹  Haibo He¹  Yunyi Lei¹  Xia Shen¹  Liqiang Luo¹ 

[1] Department of Chemistry, College of Sciences, Shanghai University

关键词: spraying;    visible spectra;    photochemistry;    X-ray diffraction;    catalysis;    drying;    ultraviolet spectra;    doping;    boron;    nanofabrication;    titanium compounds;    electron-hole recombination;    mild spray-drying process;    facile spray-drying process;    visible-light region;    photocatalytic activity;    visible-light absorption;    boron-doped-titanium dioxide nanospheres;    photogenerated electron-hole pair separation;    p-nitrophenol;    photocatalytic degradation;    band gap;    TiO2B;   

DOI  :  10.1049/mnl.2018.5784

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

A series of boron-doped-titanium dioxide (B-TiO 2 ) nanospheres were synthesised via a mild and facile spray-drying process. The obtained nanospheres were relatively uniform with a size of about 100 nm. A strong absorption in the visible-light range was observed due to the formation of Ti–O–B bonds, by narrowing the bandgap of B-TiO 2 from 3.1 to 2.8 eV. The as-synthesised 3 wt% B-TiO 2 exhibited the greatest photocatalytic activity in the degradation of p-nitrophenol. The photocatalytic performance was improved, which could be attributed to high absorption of the visible-light region and efficient separation of photogenerated electron–hole pairs.

【 授权许可】

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