Effect of reactants molar ratio on photocatalytic activity of (BiO)_2CO_3 prepared by a hydrothermal routine 机翻标题: 暂无翻译,请尝试点击翻译按钮。

来源
Desalination and water treatment: Science and engineering
年/卷/期
2018 / 132 / Nov.
页码
281-286
ISSN号
1944-3994
作者单位
Sichuan Univ Sci & Engn, Coll Chem & Environm Engn, Key Lab Green Catalysis Higher Educ Inst Sichuan, Zigong 643000, Peoples R China;
作者
Chen, Jiufu;Cheng, Chaozhu;Zhong, Junbo;Li, Jianzhang;
摘要
In this work, a series of (BiO)(2)CO3 photocatalysts were successfully fabricated using a hydrothermal method by adjusting the molar ratio of Bi(NO3)(3)center dot 5H(2) O and urea (Bi/C). The results demonstrate that the molar ratio of Bi(NO3)(3)center dot 5H(2)O and urea (Bi/C) can significantly influence the samples obtained and the corresponding photocatalytic performance. When Bi/C is between 1/4 and 1/7, (BiO)(2)CO3 was successfully obtained. Furthermore, the molar ratio of Bi/C can affect the separation rate of photo-induced charge pairs, confirmed by results of surface photovoltage spectroscopy (SPS). The photocatalytic activities of the as-obtained samples were tested using methyl orange (MO) as a target pollutant. The results reveal that the sample prepared with 1/5 molar ratio of Bi/C exhibits the highest photocatalytic activity under simulated sunlight irradiation, which can be tightly attributed to its higher photo-generated carriers separation efficiency than other samples.
机翻摘要
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关键词/主题词
Semiconductor;(BiO)(2)CO3;Photocatalytic performance;Hydrothermal method;Discoloration;
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