碳修饰钨酸铋光催化降解水体中的邻苯二甲酸酯 |
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引用本文: | 高学鹏,欧阳海平.碳修饰钨酸铋光催化降解水体中的邻苯二甲酸酯[J].化学研究,2013(4):412-415. |
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作者姓名: | 高学鹏 欧阳海平 |
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作者单位: | 江西应用技术职业学院应用化学系 |
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基金项目: | 江西省教育厅科研计划资助基金项目(GJJ11661) |
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摘 要: | 以Bi(NO3)3.5H2O、Na2WO4.2H2O为反应物,采用水热法,经由葡萄糖炭化合成了碳修饰Bi2WO6(C-Bi2WO6)催化剂;考察了C-Bi2WO6光催化降解3种邻苯二甲酸酯(PAEs)的催化性能.结果表明:C-Bi2WO6对PAEs的降解效果优于Bi2WO6,特别是在葡萄糖与Na2WO4.2H2O质量比约10∶100条件下得到的催化剂的催化性能最优.与此同时,当PAEs的pH=6时,降解效果最好;而PAEs的浓度也对PAEs的光催化降解有一定的影响.
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关 键 词: | 碳修饰 Bi2WO6 催化剂 光催化降解 邻苯二甲酸酯 |
Photocatalytic degradation of phthalic acid esters in water by carbon modified bismuth tungstate |
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Institution: | GAO Xue-peng,OU-YANG Hai-ping(Department of Chemistry,Jiangxi College of Applied Technology,Ganzhou 341000,Jiangxi,China) |
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Abstract: | Carbon modified Bi2WO6(C-Bi2WO6)catalyst was synthesized by hydrothermal carbonization of glucose(C6H12O6)in the presence of Bi(NO3)3.5H2O and Na2WO4.2H2O as raw materials.The catalytic performance of as-prepared C-Bi2WO6catalyst for the photocatalytic degradation of three kinds of phthalic acid esters(PAEs)in water was evaluated.Results show that C-Bi2WO6exhibits better photocatalytic performance than Bi2WO6;and in particular,CBi2WO6obtained under C6H12O6to Na2WO4.2H2O mass ratio of about 10∶100possesses the best photocatalytic activity towards PAEs degradation.In the meantime,the best degradation efficiency is obtained at a PAEs pH of 6,and the initial concentration of PAEs also has a certain degree of effect on the photocatalytic degradation of PAEs. |
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Keywords: | carbon modification Bi2WO6 catalyst photocatalytic degradation phthalic acid ester |
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