化工学报2012，Vol.63Issue(5)：1415-1421,7.DOI:10.3969/j.issn.0438-1157.2012.05.014
常温常压催化湿式氧化中Mo-Mn-Al-O催化剂的制备及活性
Preparation and activity of Mo-Mn-Al-O catalyst for catalytic wet air oxidation under room conditions
摘要
Abstract
To overcome some drawbacks of catalytic wet air oxidation (CWAO), higher temperature pressure is required. Mo-Mn-Al-O catalyst was prepared by co-precipitation and impregnation with Mn-Al-O as carrier and molybdate as precursor, and its catalytic activity for degradation of cationic dye wastewater under room temperature and atmospheric pressure was investigated. ICP-OES, BET, XRD and XPS were employed to characterize the Mo-Mn-Al-O catalyst. The results showed that the optimal preparation parameters were as follow: salts concentration was 1. 5 mol · L-1, dipping temperature 55°C , calcination time and temperature 3 h and 400℃ respectively. Furthermore, the degradation performance obtained for cationic dyes in wastewater cationic red GTL, cationic red X-GRL, cationic yellow X-GL and cationic blue X-BL showed that the catalytic activity of Mo-Mn-Al-0 catalyst was good when amount of Mo-Mn-Al-O catalyst was 2. 72 g · L-1 , it can be removed 74. 8% of cationic red GTL and 64. 5% of TOC after 1 h oxidation.关键词
Mo-Mn-Al-O催化剂/阳离子型染料废水/催化湿式氧化Key words
Mo-Mn-Al-O catalyst/ cationic dye wastewater/ catalytic wet air oxidation分类
资源环境引用本文复制引用
许银,孙德智..常温常压催化湿式氧化中Mo-Mn-Al-O催化剂的制备及活性[J].化工学报,2012,63(5):1415-1421,7.基金项目
国家自然科学基金项目(50978029). （50978029）
