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光催化氧化法去除水中的酚类物质
引用本文:国伟林,王西奎,许崇娟,郑礼胜,王士龙.光催化氧化法去除水中的酚类物质[J].济南大学学报(自然科学版),1998(2).
作者姓名:国伟林  王西奎  许崇娟  郑礼胜  王士龙
作者单位:山东建材工业学院应用化学系
摘    要:选取水中常见的酚类物质(如邻硝基酚、邻氨基酚和邻苯二酚)作为研究对象,在以TiO2(锐钛矿型)为催化剂、高压汞灯照射下研究其在水溶液中的降解情况。实验结果表明:酚类物质较易发生光催化降解。邻硝基酚、邻氨基酚和邻苯二酚的降解可近似看作一级反应,其半衰期分别为32.4,22.4,13.9min,并从反应机理上给予了解释。水中邻硝基酚的紫外吸光值随时间的变化情况的测定结果说明该物质在水中矿化较完全。

关 键 词:光催化氧化  二氧化钛  酚类物质

Photo Oxidation of Phenols in Aqueous Suspension of Titanium Dioxide
Guo Weilin,Wang Xikui,Xu Chongjuan,Zheng Lisheng,Wang Shilong.Photo Oxidation of Phenols in Aqueous Suspension of Titanium Dioxide[J].Journal of Jinan University(Science & Technology),1998(2).
Authors:Guo Weilin  Wang Xikui  Xu Chongjuan  Zheng Lisheng  Wang Shilong
Abstract:Photocatalytic oxidation of phenols in aqueous suspension was studied in this paper This compounds which were treated with UV illuminated titanium dioxide powder in aqueous suspension were easily degredated The degredation of phenols was investigated via first order kinetics and the half lives of 2 nitrophenol,2 aminophenol and catechol were 32 4, 22 4 and 13 9 min respectively Ultraviolet adsorbance of 2 nitrophenol was determined at 254nm and the mineralization was complete
Keywords:photocatalytic oxidation  titanium dioxide  phenols
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