https://scholars.lib.ntu.edu.tw/handle/123456789/631251
標題: | Photocatalytic water splitting of improved strontium titanate for simultaneous separation of H2 in a twin photoreactor | 作者: | Tai, Yu Yang JEFFREY CHI-SHENG WU Wen-Yueh Yu Kržmanc, Marjeta Maček Kotomin, Eugene |
關鍵字: | Isopropanol degradation | Perovskite | Photo twin reactor | Water splitting | Z-scheme | 公開日期: | 5-五月-2023 | 出版社: | ELSEVIER | 卷: | 324 | 來源出版物: | Applied Catalysis B: Environmental | 摘要: | A core-shell structural Rh-CrOx loaded on Al3+ doped strontium titanate was used for photocatalytic water splitting. A specially designed twin photoreactor, which integrates the water splitting and the degradation of isopropanol, can simultaneously carry out the degradation of isopropanol and hydrogen production. A flux method was conducted to prepare Rh@CrO3 cocatalyst on Al3+ doped high-crystallinity strontium titanate for the photocatalyst of hydrogen evolution. Nearly 1200 μmole/g of hydrogen was evolved in photocatalytic whole water splitting in five hours under simulated AM 1.5 G sunlight. Pt-loaded WO3 was utilized to degrade 100 ppm isopropanol solution. The above photocatalysts were used in the twin reactor with electron-mediator I-/IO3- and a Neosepta anion-exchanged membrane. Hydrogen evolution of 1102 μmole/g and isopropanol removal of 10.1% were achieved in five hours, indicating the rate-limiting H2 rate was overcome. The quantum efficiencies on the hydrogen-evolution and degradation sides were estimated to be 0.102% and 0.123%, respectively. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/631251 | ISSN: | 09263373 | DOI: | 10.1016/j.apcatb.2022.122183 |
顯示於: | 化學工程學系 |
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