| 对NaZSM-5分子筛盐酸改性制备TiO2/ZSM-5光催化剂 |
| |
| 引用本文： | 李莉,王宽岭,李家博,张文杰.对NaZSM-5分子筛盐酸改性制备TiO2/ZSM-5光催化剂[J].材料研究学报,2010,24(5). |
| |
| 作者姓名： | 李莉 王宽岭 李家博 张文杰 |
| |
| 作者单位： | 沈阳理工大学环境与化学工程学院,沈阳,110159;沈阳石蜡化工有限公司,沈阳,110141 |
| |
| 基金项目： | 国家自然科学基金50774074; 国家重点基础研究发展计划2005CB121104资助项目~~ |
| |
| 摘 要： | 用盐酸改性处理NaZSM-5得到HZSM-5分子筛载体,再用溶胶-凝胶法在NaZSM-5和HZSM-5表面合成TiO_2前驱体,将其煅烧制备出TiO_2/ZSM-5负载型光催化剂。分别用扫描电镜、X射线衍射、傅里叶变换红外光谱和BET氮吸附对光催化剂的表面形貌、晶相结构和比表面积进行表征,研究了NaZSM-5分子筛盐酸改性对TiO_2/ZSM-5光催化剂的影响。结果表明,盐酸改性对NaZSM-5分子筛骨架结构的影响不大,但是使其结晶度有所降低。负载后TiO_2的晶粒尺寸明显减小,TiO_2/ZSM-5光催化剂的比表面积比纯TiO_2有较大增长。对NaZSM-5分子筛盐酸改性提高了TiO_2/ZSM-5对甲基橙的吸附和光催化降解能力。重复使用四次后,TiO_2/ZSM-5光催化剂的光催化降解率下降为初次使用时的82.4%。
|
| 关 键 词： | 无机非金属材料 ZSM-5 溶胶-凝胶 负载型光催化剂 |
Effect of Hydrochloric Acid Modification of NaZSM-5 Zeolite on the Properties of TiO_2/ZSM-5 Photocatalyst |
| |
| LI Li WANG Kuanling LI Jiabo ZHANG Wenjie .School of Environmental , Chemical Engineering,Shenyang Ligong University,Shenyang .Shenyang Paraffin-wax Chemical Company Ltd.,Shengyang.Effect of Hydrochloric Acid Modification of NaZSM-5 Zeolite on the Properties of TiO_2/ZSM-5 Photocatalyst[J].Chinese Journal of Materials Research,2010,24(5). |
| |
| Authors: | LI Li WANG Kuanling LI Jiabo ZHANG Wenjie School of Environmental Chemical Engineering Shenyang Ligong University Shenyang Shenyang Paraffin-wax Chemical Company Ltd Shengyang |
| |
| Affiliation: | LI Li~1 WANG Kuanling~1 LI Jiabo~2 ZHANG Wenjie~(1**) 1.School of Environmental , Chemical Engineering,Shenyang Ligong University,Shenyang 110159 2.Shenyang Paraffin-wax Chemical Company Ltd.,Shengyang 110141 |
| |
| Abstract: | HZSM-5 zeolite was prepared by modification of NaZSM-5 zeolite with 0.3 mol/L hydrochloric acid.Photocatalysts of TiO_2/NaZSM-5 and TiO_2/HZSM-5 were prepared by dispersing TiO_2 precursor onto the surface of NaZSM-5 and HZSM-5 zeolites using sol-gel method followed by calcination process,and the photocatalysts were characterized.The results show that the structure of the zeolite does not noticeably change after modification of NaZSM-5 by HCl,but its crystallinity reduces. Crystalline size of TiO_2 decrease... |
| |
| Keywords: | inorganic non-metallic materials ZSM-5 sol-gel supported photocatalyst |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
