| 引用本文: | 吴光美,于振兴,姚忠平,李春香,姜兆华.HY沸石层接层法负载ZnS及光催化性能研究[J].材料科学与工艺,2013,21(3):21-25.DOI:10.11951/j.issn.1005-0299.20130304. |
| WU Guang-mei,YU Zhen-xing,YAO Zhong-ping,LI Chun-xiang,JIANG Zhao-hua
.Preparation of ZnS on the surface of HY zeolite by the method of layer by layer technology and its photocatalysis properties[J].Materials Science and Technology,2013,21(3):21-25.DOI:10.11951/j.issn.1005-0299.20130304. |
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| 摘要: |
| 为得到高效廉价的光催化剂,利用层接层技术,以HY沸石为载体在其表面通过Zn2+与聚乙烯亚胺（PEI）分子链上的NH2(或-NH-)络合作用,经硫化、退火处理制备出HY/(ZnS)n光催化剂,并通过UV-Vis测试和催化制氢实验进行光催化性能研究.研究表明：HY/(ZnS)n催化剂对紫外光有响应,且光催化产氢总量和产氢平均速率均随着负载层数n的增大而增大.进一步通过XRD、XPS、SEM-EDS分析手段对制得的光催化剂结构和物化性质进行了表征,分析表明,在HY沸石表面负载,形成了纤维棒状立方闪锌矿结构的ZnS. |
| 关键词: 层接层技术 HY沸石 负载 ZnS光催化剂 光催化制氢 |
| DOI：10.11951/j.issn.1005-0299.20130304 |
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| Preparation of ZnS on the surface of HY zeolite by the method of layer by layer technology and its photocatalysis properties |
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WU Guang-mei, YU Zhen-xing, YAO Zhong-ping, LI Chun-xiang, JIANG Zhao-hua
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(School of Chemical Engineering and Technology, Harbin Institute of Technology, Harbin 150001, China)
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| Abstract: |
| To get higher activity and cheaper photocatalysts, HY/(ZnS)n photocatalyst on the surface of HY-zeolite by the method of layer by layer technology were prepared, in which the Zn2+ could complex with -NH2 or -NH- of PEI molecular chain, and then the HY/(ZnS)n photocatalysts by vulcanizing and annealing treatment in the protection of nitrogen were obtained. The photocatalysis activity of HY/(ZnS)n was analyzed by UV-Vis analysis and the experiments of photocatalytic production of hydrogen were carried out. The results showed that the HY/(ZnS)n photocatalyst responsed to UV light and the average rate of hydrogen production increased with the layer n increasing. Further, the HY/(ZnS)n photocatalyst structure and chemical properties were characterized by XRD, XPS, SEM-EDS, which showed that the structure of the rodlike ZnS on the HY-zeolite surface was cubic sphalerite. |
| Key words: layer-by-layer technology HY-zeolite loaded ZnS photocatalyst photocatalytic production of hydrogen |
