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6 March 2009 Hypocrellin B graft on activated carbon and photocatalytic oxidation of 2,3,5-trimethylphenol
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Hypocrellin B, a photosensitizer isolated from Hypocrella Bambuase sacc in Yunnan province, has significant anti-tumor and anti-virus character. In this article, hypocrellin B, which was grafted on activated carbon, was used as photocatalysts to catalytic oxidize 2,3,5-trimethylphenol to 2,3,5-trimethylhydrobenzoquinone because of its high photons efficiency. This study realized nearly 100% selectivity for 2,3,5-trimethylhydrobenzoquinone under visible light irradiation (>400nm) at aerobic atmosphere. The photocatalytic oxidation process has been studied by different parameters like the pretreatment of activated carbon, synthetic mehtod of grafted hypocrellin, and photo-assisted oxidation catalysis of 2,3,5-trimethylphenol to 2,3,5-trimethylhdrobenzoquinone. Compared to the conventional methods, this process could be more eco-friendly.
© (2009) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Wei Liu, Ying Li, Pei Zhang, Jucheng Zhang, Yong Min, Zhongzhou Yi, Canbang Zhang, Mingzhu Wu, and Rui Chen "Hypocrellin B graft on activated carbon and photocatalytic oxidation of 2,3,5-trimethylphenol", Proc. SPIE 7280, Seventh International Conference on Photonics and Imaging in Biology and Medicine, 728015 (6 March 2009);

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