文献类型：期刊文献

中文题名：铈改性的铝柱撑粘土负载锰氧化物用于氯苯催化降解的研究

英文题名：Ce-Modified Al-Pillared Clays Supported MnO_x Catalysts for Catalytic Degradation of Chlorobenzene

作者：张思财[1];孙雪洁[2];伍松玲[1];董煌杰[1];左树锋[1]

机构：[1]绍兴文理学院应用化学研究所;[2]埃斯特维华义制药有限公司

年份：2013

卷号：31

期号：5

起止页码：554

中文期刊名：中国稀土学报

外文期刊名：Journal of the Chinese Society of Rare Earths

收录：CSTPCD、、北大核心2011、Scopus、北大核心、CSCD、CSCD2013_2014

基金：国家自然科学基金(21203124);绍兴市科技局项目(2012B70023);浙江省大学生科技创新项目(2012R426011)资助

语种：中文

中文关键词：稀土铈;Al柱撑粘土;Mn氧化物;氯苯降解

外文关键词：cerium ; Al-PILC ; MnOx ; chlorobenzene degradation

中文摘要：通过高温高压法,利用高压釜装置一步合成Al-交联剂,通过离子交换法制备大比表面积、大孔径的Al柱撑粘土(Al-PILC)。研究了稀土铈改性的Al-PILC负载锰氧化物用于氯苯的催化降解的活性。表征结果表明:柱撑后得到的Al-PILC,其比表面积和孔体积达到182.3m2·g-1和0.121 cm3·g-1,远大于原土的2.81 m2·g-1和0.00786 cm3·g-1。Al-PILC的层间距由原土的1.18增大到1.79 nm。活性数据表明:柱撑改性后的Al-PILC负载锰催化剂的活性远大于Na-mmt的,并且添加稀土Ce有利于改善催化剂的氧化性能,进而提高催化剂的活性。10%Mn-6%Ce/Al-PILC催化剂在330℃左右就能催化降解低浓度的氯苯,无Cl2二次污染产生,并且表现出最佳的稳定性。

外文摘要：In this paper, A1 pillaring solutions were synthesized by hydrothermal treatment in Teflon coated stainless steel pressure vessels and large BET surface area and large pore of A1 pillared clays （A1-P｜LC） were synthesized by cation-exchange. The catalytic ac- tivity of Ce modified A1-PILC supported MnOx for cata- lytic degradation of chlorobenzene was studied. The characterization results showed that the surface area and pore volume of A1-PILC were 182.3 m2 -g-l and 0. 121 cm3 .g-l, respectively, which were much high- er than the surface area （2.81 m2 .g-1 ） and pore vol-ume （0.00786 cm3 ＂g-I ） of Na-mmt. The basal spac- ing increased from 1. 18 nm （Na-mmt） to 1.79 nm （A1-PILC） in the present case. Catalytic activity tests showed that the activity of MnOx catalyst supported on A1-PILC present considerably was higher than that on Na-mmt. Adding Ce greatly modified the oxidation properties and then enhanced the activity of the cata- lysts. The temperature for complete degradation of low concentration of chlorobenzene of 10% Mn-6% Ce/A1- PILC was 330℃ （ no C12 was the highest catalytic activity and observed ） , stability. exhibiting