Controllable synthesis and enhanced photocatalytic activity of B-TiO2 nanospheres
Controllable synthesis and enhanced photocatalytic activity of B-TiO2 nanospheres
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B-TiO2纳米球的可控合成及其增强的光催化活性
DOI：
10.1049/mnl.2018.5784
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发表时间：
2019
影响因子：
1.3
通讯作者：
Luo Liqiang
中科院分区：
文献类型：
--
作者：
Wang Shumin;Yan Xiaoxia;Deng Dongmei;He Haibo;Lei Yunyi;Shen Xia;Luo Liqiang
通过温和且容易的喷雾干燥工艺合成了一系列硼掺杂二氧化钛（B-TiO 2）纳米球。所得纳米球相对均匀，尺寸约为100 nm。通过将B-TiO 2的带隙从3.1 eV缩窄至2.8 eV，由于形成Ti-O-B键，观察到可见光范围内的强吸收。合成的3 wt% B-TiO 2在降解对硝基苯酚中表现出最大的光催化活性。光催化性能得到改善，这可能归因于可见光区域的高吸收和光生电子-空穴对的有效分离。
A series of boron‐doped‐titanium dioxide (B‐TiO2) 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‐TiO2from 3.1 to 2.8 eV. The as‐synthesised 3 wt% B‐TiO2exhibited 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.