Photoactivity of Bi2WO6 synthesized by a solvothermal method using the different solvents
Photoactivity of Bi2WO6 synthesized by a solvothermal method using the different solvents
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DOI：
10.1007/s00339-020-04262-2
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发表时间：
2021-01
期刊：
影响因子：
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通讯作者：
S. Lei;Jing Fan;J. Zhong;Sheng-tian Huang;Jianzhang Li
中科院分区：
文献类型：
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作者：
S. Lei;Jing Fan;J. Zhong;Sheng-tian Huang;Jianzhang Li
采用不同的溶剂，采用溶剂热法成功地合成了Bi2WO6(BWO)基光催化剂。扫描电子显微镜观察表明，不同溶剂制备的Bi2WO6具有不同的形貌。猝灭实验表明，降解罗丹明B的主要活性物种为·O2、−和h+。表面光电压谱和光电化学实验证明，与用甘油和乙烯制备的沸石相比，用乙酸制得的沸石对光生e−-h+的分离效率更高。同时，对罗丹明B(RhB)和甲基橙(MO)的光催化降解结果表明，以醋酸为原料制备的BWO具有最好的光催化活性。溶剂对Bi2WO6的形貌和光催化性能有显著影响。
Bi2WO6(BWO)-based photocatalysts were successfully synthesized via a solvothermal method using the different solvents. The SEM observations reveal that Bi2WO6prepared with the various solvents has different morphologies. The quenching experiments demonstrate the main active species for RhB degradation are·O2−and h+. Compared with BWO prepared with glycerol and ethylene, BWO prepared with acetic acid has higher separation efficiency of photogenerated e−-h+pairs, proven by surface photovoltage spectroscopy (SPS) and photoelectrochemistry experiments. Meanwhile, the results of photocatalytic degradation of Rhodamine B (RhB) and methyl orange (MO) display the BWO prepared with acetic acid has the best photoactivity. The solvents execute a significant influence on the morphology and photocatalytic performance of Bi2WO6.