Catalytic activity of Ru/Al2O3 for ozonation of dimethyl phthalate in aqueous solution

被引：69

作者：

Zhou Yunrui ^{[1
]}

Zhu Wanpeng ^{[1
]}

Liu Fudong ^{[1
]}

Wang Jianbing ^{[1
]}

Yang Shaoxia ^{[1
]}

机构：

[1] Tsing Hua Univ, Dept Environm Sci & Engn, Beijing 100084, Peoples R China

来源：

CHEMOSPHERE | 2007年 / 66卷 / 01期

基金：

中国国家自然科学基金;

关键词：

catalytic oxidation; ozone; ruthenium; aluminum leaching; advanced oxidation processes; WET AIR OXIDATION; OXALIC-ACID; WASTE-WATER; BIODEGRADATION; REMOVAL; SYSTEM; OZONE;

D O I：

10.1016/j.chemosphere.2006.04.087

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

With dimethyl phthalate as the model pollutant and Ru/Al2O3 as catalyst, this paper systemically investigates the removal of total organic carbon (TOC) of system. Our results have confirmed that Ru/Al2O3 can significantly increase the effect of ozonation. TOC removal in 120 min can reach 72% while only 24% with ozone alone. The optimal catalyst preparing condition was 0.1 wt% Ru content, 600 degrees C calcination temperature, 0.5-1.0 mm particle diameter, which is characterized by a high surface area and a large population of surface active sites. The contrasting experiments of ozone alone, catalyst adsorption after ozonation, and catalytic ozonation confirmed that catalytic reaction was the most important process to TOC removal in system with Ru/Al2O3 as catalyst. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：145 / 150

页数：6

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