硅钨酸/二氧化硅催化剂催化降解酸性蓝的性能研究  

Study on Catalytic Performance of Silicotungstic Acid/SiO_2 Catalyst for Degradation of Acid Blue

作　　者：杜昕 薛瑞 

机构地区：[1]陕西核工业集团综合分析测试中心,陕西西安710024 [2]陕西省核工业地质局211大队,陕西西安710024

出　　处：《化学与生物工程》2013年第7期83-85,共3页Chemistry & Bioengineering

摘　　要：制备了Cu2+掺杂、无Cu2+掺杂的H4SiW12O40/SiO2催化剂,研究了催化剂对酸性蓝染料的光催化降解作用,比较了有无紫外光照射以及催化剂是否负载Cu2+的催化效果。结果表明,Cu2+掺杂的H4SiW12O40/SiO2催化剂对酸性蓝有较好的光降解性能;随着光照时间的延长,催化剂降解活性升高;且催化剂用量并非越多越好,存在最佳值。Catalyst H2SiW12O40/SiO2 doped/undoped with Cu^2＋ were prepared, their photocatalytic per- formances for degradation of acid blue were studied. The catalytic effects were compared for the catalysts doped/undoped with Cu^2＋ in the presence/absence of uhravioiet light. The results showed that, H4SiW12 O40/ SiO2 catalyst doped with Cu^2＋ exhibited better photocatalytic perfo catalytic activity increased with irradiation time. Furthermore, cata] catalyst dosage increasing,so there existed a optimum catalyst dosa rmance for degradation of acid blue and its ytic activity didn＇t positively enhance with ge.

关 键 词：硅钨酸 光催化 酸性蓝 降解 

分 类 号：X703.1[环境科学与工程—环境工程]