کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
610977 | 880663 | 2009 | 9 صفحه PDF | دانلود رایگان |
On the basis of the understanding that membranes play an important role in the separation of the intermediate photoproducts in the photosynthetic process, a novel efficient hydrogen evolution system was constructed with Maya blue-like organic–inorganic hybrid material as a photocatalyst, in which palygorskite acts as matrix and Eosin Y as a photosensitizer. Under visible light irradiation (λ⩾420 nmλ⩾420 nm), the highest rate of hydrogen evolution and apparent quantum yield are about 3247.2 μmol h−1 (g Eosin Y)−1 and 12.5%, respectively. Negatively charged palygorskite particles could control the photosensitized electron-transfer reaction by means of electrostatic interaction. Based on the activities of hydrogen generation and the experimental measurements of UV–vis absorbance and fluorescence, a probable mechanism for photosensitized hydrogen evolution was postulated.
A novel efficient hydrogen evolution system was constructed with Maya blue-like organic–inorganic hybrid material as a photocatalyst, in which palygorskite acts as matrix and Eosin Y as a photosensitizer.Figure optionsDownload as PowerPoint slide
Journal: Journal of Colloid and Interface Science - Volume 333, Issue 1, 1 May 2009, Pages 285–293