| 脂肪醇水溶液在Rh2O3/CdS上的可见光催化脱氢 |
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| 引用本文： | 李庆霖,苏伯民,郑新华,孙克仁,金振声. 脂肪醇水溶液在Rh2O3/CdS上的可见光催化脱氢[J]. 影像科学与光化学, 1986, 4(3): 55-59. DOI: 10.7517/j.issn.1674-0475.1986.03.55 |
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| 作者姓名： | 李庆霖 苏伯民 郑新华 孙克仁 金振声 |
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| 作者单位： | 中国科学院兰州化学物理研究所 |
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| 摘 要： | 本文报道了在Rh2O3/CdS微粒悬浮体系中脂肪醇水溶液可见光催化脱氢的研究结果.实验表明:脂肪醇的脱氢是在水参与下的氧化脱氢反应,产氢速度不仅与醇的碳数有关,且强烈地依赖于溶液的pH值;醇的氧化反应明显地抑制了CdS的光腐蚀,提高了催化剂的操作稳定性,如Rh2O3/CdS/EtOH-H2O体系经100小时的连续光照反应,催化剂活性未见有下降.文中对反应机理也进行了初步讨论.
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| 收稿时间： | 1985-10-14 |
INVESTIGATION OF PHOTOCATALYTIC DEHYDROGENA-TION OF AQUEOUS ALIPHATIC ALCOHOLS ON VISIBLE LIGHT ILLUMINATED Rh2O3/CdS |
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| LI QING-LIN,SU BE-MIN,ZHENQ XIN-HUA,SUN KE-REN,JIN ZHEN-SHENG. INVESTIGATION OF PHOTOCATALYTIC DEHYDROGENA-TION OF AQUEOUS ALIPHATIC ALCOHOLS ON VISIBLE LIGHT ILLUMINATED Rh2O3/CdS[J]. Imaging Science and Photochemistry, 1986, 4(3): 55-59. DOI: 10.7517/j.issn.1674-0475.1986.03.55 |
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| Authors: | LI QING-LIN SU BE-MIN ZHENQ XIN-HUA SUN KE-REN JIN ZHEN-SHENG |
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| Affiliation: | Lanzhou Institute of Chemical Physics, Academia Sinica |
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| Abstract: | An investigation of photocatalytic dehydrogenation of primary aliphatic alcohol-water mixture in a visible light illuminated suspension system of Rh2O3/CdS particles is reported in this paper.The experiments indicated that dehydrogenation of aliphatic alcohols is an oxo-dehydrogenation in the presence of waiter.The hydrogen production rate is not only related to the type of alcohols but also strongly dependent on the pH value of the solution.The photocorrosion was suppressed effectively through the oxidation of alcohols.The stability test demonstrated that the catalyst activity remains essentially constant for the period of 100 h continuous operation.A schematic mechanism has been suggested and discussed. |
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