HZSM-5分子筛负载Fe掺杂TiO_2的制备及光催化性能研究  

Preparation and Characterization of HZSM-5 Supported Fe-doped TiO_2 Photocatalyst

作　　者：王宽岭[1] 张文杰[2] 段卫宇 

机构地区：[1]中国石油化工股份有限公司抚顺石油化工研究院,辽宁抚顺113001 [2]沈阳理工大学环境与化学工程学院,辽宁沈阳110159 [3]辽宁省质量监督检验院,辽宁沈阳110032

出　　处：《电镀与精饰》2016年第5期11-15,共5页Plating & Finishing

摘　　要：采用溶胶-凝胶法合成Fe-Ti O_2和分子筛负载型Fe-Ti O_2/HZSM-5光催化剂。采用扫描电镜、X-射线衍射和傅里叶变换红外光谱分析了光催化剂的表面形貌、晶相结构及化学键的变化。光催化实验结果表明,通过掺杂Fe提高了Ti O_2和Ti O_2/HZSM-5的光催化活性,Fe-Ti O_2和Fe-Ti O_2/HZSM-5中Fe/Ti的最佳掺杂比分别为0.000 5和0.000 7。Fe的引入不足以改变Ti O_2的表面形貌,铁离子的掺入并未影响Ti O_2的晶型结构,但是可以提高Ti O_2的晶型转变温度。掺杂Fe后Ti O_2与HZSM-5也没有发生明显的化学键合作用。Preparation and Characterization of HZSM-5 Supported Fe-doped TiO2 Photocatalyst WANG Kuanling, ZHANG Wenjie, DUAN Weiyu （ 1. Fushun Research Institute of Petroleum and Petrochemicals, SINOPEC, Fushun 113001, China; 2. School of Environmental and Chemical Engineering, Shenyang Ligong University, Shenyang 110159, China; 3. Liaoning Provincial Supervision and Test Institute for Priducts Quality,Shenyang 110032, China） Abstract：Fe-TiO2 and HZSM-5 supported Fe-TiO2/HZSM-5 were prepared by a sol-gel method. The morphology, crystalline structure as well as the chemical bond variation of the prepared photoeatalysts were characterized by scanning electron microscopy, X-ray diffraction, and Fourier transform infrared spectroscopy, respectively. Photocatalytic experimental results showed that doping of Fe3 ＋ enhanced photocatalytic activity of TiO2 and TiO2/HZSM-5, and the optimum Fe/Ti mole ratios for TiO2 and TiOJHZSM-5 were 0.000 5 and 0.000 7, respectively. Doping of Fe3 ＋ did not change the surface morphology of TiO2 or TiO2/HZSM-5. The erystallite structure of TiO2 was not affected after doping of Fe3＋ ,but phase transition temperature of TiO2 was increased. Obvious chemical bonding between HZSM-5 and TiO2 was not observed after Fe doping.

关 键 词：HZSM-5分子筛 TIO2 溶胶-凝胶 掺杂 光催化剂 

分 类 号：O643.322[理学—物理化学]