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。
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
出处
《山东建材学院学报》
1998年第2期107-108,114,共3页
Journal of Shandong Institute of Building Materials
