Screening and Characterization for the Optimization of Cadmium Sulfur-based Photocatalysts
碩士 === 逢甲大學 === 化學工程學系 === 103 === How to enhance the photocatalytic activity is an important issue for production of the hydrogen from water in photocatalyst field.CdS is a visible absorption photocatalyst. In this study, a pico-liter piezoelectric dispenser system is used to prepare CdS-based phot...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2015
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| Online Access: | http://ndltd.ncl.edu.tw/handle/37dr3e |
| Summary: | 碩士 === 逢甲大學 === 化學工程學系 === 103 === How to enhance the photocatalytic activity is an important issue for production of the hydrogen from water in photocatalyst field.CdS is a visible absorption photocatalyst. In this study, a pico-liter piezoelectric dispenser system is used to prepare CdS-based photocatalyst arrays with different photocatalyst compositions. Combined with combinatorial method together with high-throughout are applied to systematically and rapidly identify the optimal photocatalytic efficiency compositions. At this time, we increased the temperature as the independent variableand found the 200℃calcinationtemperature has the best photocurrent, and then doped the second element to modify with the same calcination temperature, the result shows the In0.2Cd0.8S with more photocatalytic activity. The physic-chemical property and photocatalytic efficiency of CdS and In0.2Cd0.8S photocatalyst were investigated. We also proposed the photocatalytic mechanism of the optimal photocatalyst.
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