磷钼钒杂多酸的合成及其对染料废水的光催化降解性能

侯跃	王轶博	高丽华	张鑫	王怡娟	杨骏青	赵鸣	卿淼晴

doi:10.12034/j.issn.1009-606X.215166

过程工程学报 >

2015 , Vol. 15 >Issue 4: 703 - 707

DOI: https://doi.org/10.12034/j.issn.1009-606X.215166

材料工程专栏

磷钼钒杂多酸的合成及其对染料废水的光催化降解性能

侯跃王轶博高丽华张鑫王怡娟杨骏青赵鸣卿淼晴

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北京工商大学食品学院北京工商大学理学院北京工商大学理学院北京工商大学食品学院北京工商大学食品学院北京工商大学理学院北京工商大学理学院北京工商大学理学院

收稿日期: 2015-03-27

修回日期: 2015-06-08

网络出版日期: 2015-08-20

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Synthesis and Photocatalytic Degradation Performance of Molybdovanadophosphoric Heteropoly Acid

HOU Yue WANG Yi-bo GAO Li-hua ZHANG Xin WANG Yi-juan YANG Jun-qing ZHAO Ming QING Miao-qing

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School of Food and Chemical Engineering, Beijing Technology and Business University Department of Chemistry, School of Science, Beijing Technology and Business University Department of Chemistry, School of Science, Beijing Technology and Business University School of Food and Chemical Engineering, Beijing Technology and Business University School of Food and Chemical Engineering, Beijing Technology and Business University Department of Chemistry, School of Science, Beijing Technology and Business University Department of Chemistry, School of Science, Beijing Technology and Business University Department of Chemistry, School of Science, Beijing Technology and Business University

Received date: 2015-03-27

Revised date: 2015-06-08

Online published: 2015-08-20

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摘要

采用分步酸化加热回流方法合成了磷钼钒杂多酸H7[P2Mo17VO62]×39H2O，用红外光谱表征了其结构，考察了其对罗丹明B光降解的催化作用. 结果表明，没有杂多酸H7[P2Mo17VO62]·39H2O催化时，单独进行紫外光照射罗丹明B降解率仅17.5%；H7[P2Mo17VO62]×39H2O催化剂浓度增加，罗丹明B的降解率升高，最高达75%. 同时探讨了Dawson型杂多酸H7[P2Mo17VO62]×39H2O对有机污染物的光催化降解机理.

关键词： 杂多酸; 光催化; 染料; 降解

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侯跃王轶博高丽华张鑫王怡娟杨骏青赵鸣卿淼晴 . 磷钼钒杂多酸的合成及其对染料废水的光催化降解性能[J]. 过程工程学报, 2015 , 15(4) : 703 -707 . DOI: 10.12034/j.issn.1009-606X.215166

Abstract

Molybdovanadophosphoric heterpoly acid H7[P2Mo17VO62]×39H2O was prepared from NH4VO3, NaH2PO4 and Na2MoO4 step by step, and characterized by IR spectrometry. Based on a model pollutant, Rhodamine B (RhB), the photocatalytic ability of H7[P2Mo17VO62]×39H2O was studied under UV-Vis light. The results showed that when H7[P2Mo17VO62]×39H2O was not added in the solution of RhB, the degradation rate of RhB was only 17.5% under UV-Vis light irradiation. Under UV-Vis light irradiation, the degradation rate had greatly improved while the concentration of prepared heteropoly acid was low in the solution of RhB, and the degradation rate increased with increasing of concentration of the heteropoly acid. And the degradation rate of RhB reached up to 75%. The photocatalytic degradation mechanism of RhB with Dawson type H7[P2Mo17VO62]×39H2O was also analyzed.

Key words： heterpoly acid; photocatalysis; dye; degradation

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