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| Study on Gel Confined Preparation and Photocatalytic Hydrogen Production Performance of CdS/SiO2 |
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Received:November 05, 2019
Revised:November 07, 2019
Accepted:November 11, 2019
Published Online:March 17, 2020
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| DOI：doi：10.3969/j.issn.1007-7545.2020.04.013 |
| KeyWord:cadmium sulfide; silica; photocatalytic hydrogen production; gel confined |
| Author | Institution |
| TIAN Li-ning |
吉林化工学院 材料科学与工程学院 |
| WANG Lin-bo |
吉林化工学院 材料科学与工程学院 |
| WANG Chen |
吉林化工学院 材料科学与工程学院 |
| CHEN Zhe |
吉林化工学院 材料科学与工程学院 |
| ZHANG Yu |
吉林化工学院 材料科学与工程学院 |
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| Abstract: |
| CdS/SiO2 composites were prepared by gel confined - anion exchange method. Structures, physical properties and visible light photocatalytic hydrogen production properties of CdS/SiO2 composites were characterized by XRD, SEM, HRTEM, BET, UV-vis and GC. Properties of cadmium sulfide nanoparticles prepared by hydrothermal and precipitation method at room temperature were compared. The results show that CdS size prepared by silica gel confined is 3-7 nm, specific surface area of CdS/SiO2 is 68.99 m2/g, and absorption band edge red shifts to 605 nm. In absence of catalyst, photocatalytic hydrogen production rate of CdS/SiO2 is 1 925.29 μmol/(h?g), which is 47 and 2.3 times than those of hydrothermal and precipitation method room temperature, respectively, and photocatalytic cycle of CdS/SiO2 is more stable. |
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