Bio-mimetic hydrogen production from polysaccharide using the visible light sensitization of zinc porphyrin |
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Authors: | Saiki Yoshinobu Amao Yutaka |
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Affiliation: | Department of Applied Chemistry, Oita University, Dannoharu 700, Oita 870-1192, Japan. |
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Abstract: | A biohydrogen production system coupling the polysaccharide such as sucrose and maltose degradation with invertase and glucose dehydrognase (GDH) and hydrogen production with colloidal platinum as hydrogen-evolved catalyst using the visible light-induced photosensitization of water-soluble zinc porphyrin, zinc tetraphenylporphyrin tetrasulfonate (ZnTPPS) has been investigated. Continuous hydrogen gas production was observed when the sample solution containing polysaccharide, invertase, GDH, nicotinamide adenine dinucreotide (NAD(+)), ZnTPPS, methylviologen (an electron relay reagent), and colloidal platinum was irradiated by visible light. After 240-min irradiation, the amount of hydrogen production in the system using sucrose and maltose was estimated to be 3.1 and 0.35 micromol, respectively. |
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Keywords: | biohydrogen polysaccharide zinc porphyrin visible light |
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