TiO2/HZSM-5 nano-composite photocatalyst: HCl treatment of NaZSM-5 promotes photocatalytic degradation of methyl orange
文献类型：期刊论文
| 作者 | Zhang, Wenjie1; Wang, Kuanling1; Yu, Yang1; He, Hongbo2 |
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2010-09-15 |
| 卷号 | 163期号:1-2页码:62-67 |
| 关键词 | Photocatalysis Tio2 Hzsm-5 Methyl Orange |
| ISSN号 | 1385-8947 |
| DOI | 10.1016/j.cej.2010.07.042 |
| 英文摘要 | TiO2/HZSM-5 nano-composite photocatalysts were prepared by dispersing TiO2 onto the surface of HCl-treated NaZSM-5 zeolite using a sol-gel method. These materials were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), BET surface area analysis and X-ray photoelectron spectroscopy (XPS) measurements. Photocatalytic activities of the supported catalysts were examined through methyl orange degradation under UV irradiation. The results showed that HCl modification of NaZSM-5 did not noticeably change the surface morphology and structure of the zeolite. Improved dispersion and restrained crystalline size of TiO2 could be found after supporting the TiO2 on HZSM-5. Ti-O-Si bonds did not form between the HZSM-5 bulk and the supported TiO2. Supported TiO2 calcinated at 400 degrees C presented anatase structure. The titanium was in the oxidation state of Ti4+, and the oxygen was in the form of O2- in both TiO2 and SiO2. The adsorption ability and photocatalytic degradation activity of TiO2/HZSM-5 nano-composite were better than that of bare TiO2, accompanied with increasing specific surface area. Meanwhile, photocatalytic degradation activity of TiO2/HZSM-5 changed remarkably when HZSM-5 supports treated with different concentrations of HCl were used, giving the optimum HCl concentration of 0.3 mol/l. The recycling of TiO2/HZSM-5 photocatalyst was also investigated and methyl orange degradation rate was 82.4% of the initial rate after three recycles. (C) 2010 Elsevier B.V. All rights reserved. |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000282391200009 |
| 出版者 | ELSEVIER SCIENCE SA |
| 源URL | [http://210.72.129.5/handle/321005/121587]  |
| 专题 | 中国科学院沈阳应用生态研究所 |
| 通讯作者 | Zhang, Wenjie |
| 作者单位 | 1.Shenyang Ligong Univ, Sch Environm & Chem Engn, Shenyang 110159, Peoples R China 2.Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Wenjie,Wang, Kuanling,Yu, Yang,et al. TiO2/HZSM-5 nano-composite photocatalyst: HCl treatment of NaZSM-5 promotes photocatalytic degradation of methyl orange[J]. CHEMICAL ENGINEERING JOURNAL,2010,163(1-2):62-67. |
| APA | Zhang, Wenjie,Wang, Kuanling,Yu, Yang,&He, Hongbo.(2010).TiO2/HZSM-5 nano-composite photocatalyst: HCl treatment of NaZSM-5 promotes photocatalytic degradation of methyl orange.CHEMICAL ENGINEERING JOURNAL,163(1-2),62-67. |
| MLA | Zhang, Wenjie,et al."TiO2/HZSM-5 nano-composite photocatalyst: HCl treatment of NaZSM-5 promotes photocatalytic degradation of methyl orange".CHEMICAL ENGINEERING JOURNAL 163.1-2(2010):62-67. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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