| 光催化活性艳橙脱色降解 |
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| 引用本文： | 朱秀华,朱敏,王炜,穆军,彭孝军,张蓉.光催化活性艳橙脱色降解[J].大连铁道学院学报,2009(2). |
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| 作者姓名： | 朱秀华 朱敏 王炜 穆军 彭孝军 张蓉 |
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| 作者单位： | 大连交通大学环境与化学工程学院;大连理工大学精细化工国家重点实验室; |
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| 基金项目： | 大连理工大学精细化工国家重点实验室开放课题基金资助项目(KF0707) |
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| 摘 要： | 以253.7 nm紫外灯(20 W)、氙灯(500 W)和太阳光为光源,研究了多金属氧酸盐(磷钨酸,硅钨酸)及二氧化钛对模拟染料废水活性艳橙(KGN)溶液的光催化脱色降解性.结果表明,以磷钨酸为光催化剂时,KGN溶液的初始pH、催化剂投加量及光源对光解效果均有影响.在平均光照强度为98000 lx的晴天,KGN溶液(100 mL)的初始浓度为10 mg/L,溶液初始pH为2.00,磷钨酸投量为0.6 g/L时,光照1 h,其色度去除率达96.67%,TOC去除率79.22%、COD去除率85.98%,BOD5/COD为0.3,达到可生化降解的程度.研究表明H3PW12O40、H4S iW12O40、TiO2三种催化剂光催化降解KGN能力不同,在紫外光和日光下,其降解活性艳橙的能力依次为:TiO2>H3PW12O40 H4S iW12O40.H3PW12O40虽略逊于TiO2,但光照相同时间后出水也已达到可生物降解的程度.
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| 关 键 词： | 多金属氧酸盐 光催化 活性艳橙 脱色降解 |
Photocatalysis Degradation Reactive Bright Orange Solution |
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| ZHU Xiu-hua,ZHU Min,WANG Wei,MU Jun,PENG Xiao-jun,ZHANG Rong.Photocatalysis Degradation Reactive Bright Orange Solution[J].Journal of Dalian Railway Institute,2009(2). |
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| Authors: | ZHU Xiu-hua ZHU Min WANG Wei MU Jun PENG Xiao-jun ZHANG Rong |
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| Institution: | ZHU Xiu-hua1,2,ZHU Min1,WANG Wei1,MU Jun1,PENG Xiao-jun2,ZHANG Rong2(1.School of Environmental , Chemical Engneering,Dalian Jiaotong University,Dalian 116028,China,2.State Key Laboratory of Fine Chemicals,Dalian University of Technology,Dalian 116012,China) |
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| Abstract: | Photocatalytic decomposition of reactive bright orange(abbreviated as KGN) with polyoxometale(H3PW12O40 and H4SiW12O40) and TiO2 was investigated in an aqueous solution with a 20W UV lamp,a 500W Xe arc lamp and sunlight.The effects of KGN solution initial pH,catalyst quantity and irradiation light source on decolorization and TOC and COD removal rates were studied.The results indicated that when solar irradiation average intensity was 98000lx,initial KGN concentration and pH was 10mg/L,and 2.00,respectively... |
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| Keywords: | polyoxometale photocatalysis reactive bright orange decolorization and decomposition |
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