钨钼磷钨磷钼酸铋盐的催化性能

doi:10.3969/j.cnki.jdxb.2015.03.014

journal6 ›› 2015, Vol. 36 ›› Issue (3): 61-67.DOI: 10.3969/j.cnki.jdxb.2015.03.014

钨钼磷钨磷钼酸铋盐的催化性能

韩宇哲，王德华，李达达,王宏祥，蔡铁军，邓谦

(湖南科技大学化学化工学院，湖南湘潭 411201)

出版日期:2015-05-25 发布日期:2015-06-03
作者简介:韩宇哲（1990—），女，甘肃张掖人，湖南科技大学化学化工学院硕士研究生，主要从事催化合成研究;邓谦（1956—），女，湖南岳阳人，湖南科技大学化学化工学院教授，主要从事催化和配位化学研究.
基金资助:
湖南科技大学研究生创新基金项目（S130029）；贵州省教育厅功能材料与资源化学特色重点实验室开放基金（GAFMRC201302）

Catalytic Performance of Tungstate/Molybdate/Phosphotungstic/Phosphomolybdate Acid Bismuth Salt

HAN Yu-Zhe, WANG De-Hua, LI Da-Da, WANG Hong-Xiang, CAI Tie-Jun, DENG Qian

(School of Chemistry and Chemical Engineering,Hunan University of Science and Technology,Xiangtan 411201,Hunan China)

Online:2015-05-25 Published:2015-06-03

摘要/Abstract

摘要：利用水热和共沉淀法合成了钨酸铋、钼酸铋、磷钨酸铋和磷钼酸铋4种铋系催化剂，通过红外光谱（IR）、紫外光谱(UV-vis)、荧光光谱（FL）、X-ray粉末衍射(XRD)和扫描电镜（SEM）等手段对所合成样品的形貌和性质进行表征.从制备条件、焙烧温度、不同降解底物等方面对4种催化剂的催化降解性能进行探究和对比，发现当钨酸铋催化剂中W与Bi物质的量之比为1∶2的未焙烧的催化剂催化降解4 mg/L的罗丹明B（RhB）的效果最佳，可达98.1%，并对甲基橙、亚甲基蓝等多种有机污染物有一定的催化降解效果；钨酸铋、钼酸铋催化剂也分别对RhB、甲基橙、亚甲基蓝等有良好的催化效果；而磷钼酸铋对上述污染物催化降解效果较差.

关键词： 光催化, 铋系催化剂, 罗丹明B, 甲基橙, 亚甲基蓝, 有机污染物

Abstract: Bi₂WO₆,Bi₂MoO₆,BiPW₁₂O₄₀ and BiPMo₁₂O₄₀ catalysts were synthesized by hydrothermal and co-precipitation method and characterized by IR,UV-vis,FL,SEM and X-ray power diffraction (XRD).The relationship between catalytic performance of catalysts and preparation conditions,calcination temperature and different substrates was explored.The best degradation of RhB (100 mL 4 mg/L) achieved 98.1% over the unbaked Bi2WO6 with the W/Bi molar rate 1∶2,which also had certain catalytic effect for degrading methyl orange and methylthionine chloride.The tungstate bismuth and molybdate bismuth catalysts had a good catalytic effect for degrading RhB,methyl orange and methylthionine chloride as well.The catalytic performance of phosphomolybdate bismuth was poorer.

Key words: photocatalysis, bismuthic catalyst, RhB, methyl orange, methylthionine chloride, organic pollutants

韩宇哲, 王德华, 李达达, 王宏祥, 蔡铁军, 邓谦. 钨钼磷钨磷钼酸铋盐的催化性能[J]. journal6, 2015, 36(3): 61-67.

HAN Yu-Zhe, WANG De-Hua, LI Da-Da, WANG Hong-Xiang, CAI Tie-Jun, DENG Qian. Catalytic Performance of Tungstate/Molybdate/Phosphotungstic/Phosphomolybdate Acid Bismuth Salt[J]. journal6, 2015, 36(3): 61-67.

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钨钼磷钨磷钼酸铋盐的催化性能

Catalytic Performance of Tungstate/Molybdate/Phosphotungstic/Phosphomolybdate Acid Bismuth Salt

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