| 石墨烯量子点/Bi2WO6的制备及其对抗生素的降解性能 |
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| 引用本文： | 龙菲妃,莫创荣,胡文科,方译晨,黄业翔,黄俊霖.石墨烯量子点/Bi2WO6的制备及其对抗生素的降解性能[J].化工环保,2019,39(5):586-591. |
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| 作者姓名： | 龙菲妃 莫创荣 胡文科 方译晨 黄业翔 黄俊霖 |
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| 作者单位： | 广西大学 资源环境与材料学院,广西 南宁,530004;广西大学 资源环境与材料学院,广西 南宁,530004;广西大学 资源环境与材料学院,广西 南宁,530004;广西大学 资源环境与材料学院,广西 南宁,530004;广西大学 资源环境与材料学院,广西 南宁,530004;广西大学 资源环境与材料学院,广西 南宁,530004 |
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| 摘 要： | 采用一步水热法与两步水热法制备了GQDs/Bi2WO6（GQDs为石墨烯量子点）复合材料,利用氙灯为光源,考察了暗反应与光反应条件下GQDs/Bi2WO6对目标污染物环丙沙星的吸附性能与光催化性能,并对所制备的部分材料进行了表征。实验结果表明,相比于纯Bi2WO6,一步法制备的0.20GQDs/Bi2WO6（柠檬酸CA与 Bi2WO6物质的量比为0.2）和两步法制备的2%GQDs/Bi2WO6（GQDs与Bi2WO6的质量比为2%）有着相对更好的吸附性能与光催化性能。其中,0.20GQDs/Bi2WO6光催化效果最好。暗反应30 min后,环丙沙星吸附去除率为50.4%。光反应60 min后,环丙沙星的光催化去除率为42.6个百分点,总去除率达93.0%。表征结果显示,0.20GQDs/Bi2WO6的比表面积最大,且光生空穴和电子复合概率也相对较低。
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| 关 键 词： | 石墨烯量子点 钨酸铋 一步水热法 两步水热法 吸附 光催化 环丙沙星 |
| 收稿时间： | 2018-11-06 |
Preparation of GQDs/Bi2WO6 and its degradation property to antibiotic |
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| LONG Feifei,MO Chuangrong,HU Wenke,FANG Yichen,HUANG Yexiang,HUANG Junlin.Preparation of GQDs/Bi2WO6 and its degradation property to antibiotic[J].Environmental Protection of Chemical Industry,2019,39(5):586-591. |
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| Authors: | LONG Feifei MO Chuangrong HU Wenke FANG Yichen HUANG Yexiang HUANG Junlin |
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| Affiliation: | School of Resource,Environment and Materials,Guangxi University,Nanning 530004,China |
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| Abstract: | GQDs/Bi2WO6 （GQDs as graphene quantum dots）composites were prepared by one-step hydrothermal method and two-step hydrothermal method. Using xenon lamp as light source,the adsorption and photocatalytic properties of GQDs/Bi2WO6 to targeted pollutant ciprofloxacin were investigated under dark and light conditions,and some of the prepared materials were characterized. Compared with pure Bi2WO6,0.20GQDs/ Bi2WO6 （the mole ratio of citric acid CA to Bi2WO6 is 0.2） prepared by one-step method and 2% GQDs/Bi2WO6 （the mass ratio of GQDs to Bi2WO6 is 2%） prepared by two-step method have better adsorption and photocatalytic properties. The photocatalytical effect of 0.20GQDs/Bi2WO6 was the best with 50.4% of ciprofloxacin removal rate after 30 min of dark adsorption,42.6 percetage points of ciprofloxacin removal rate after 60 min of photocatalytic reaction and 93.0% of the total removal rate. The characterization results show that the specific surface area of 0.20GQDs/Bi2WO6 is the largest,and the recombination probability of photo-generated holes and electrons is relatively low. |
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| Keywords: | graphene quantum dot barium tungstate one-step hydrothermal method two-step hydrothermal method adsorption photocatalysis ciprofloxacin |
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