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

• 化学化工 • 上一篇    下一篇

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   

  1. (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   

  1. (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: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

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