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Reference type: Journal
Authors: Sagawa T
Article Title: Efficient photoinduced electron transfer using TiO2 doped polymer.
Publication date: 2011
Journal: Kobunshi Ronbunshu
Volume: 68
Issue: (5)
Page numbers: 307-314.
DOI: 10.1295/koron.68.307
Alternative URL: http://www.jstage.jst.go.jp/article/koron/68/5/68_307/_article

Abstract: Nanoparticles of TiO2 were prepared by sol-gel method and fixed onto the surface of a quartz plate by the layer-by-layer method using poly (diallyldimethylammonium chloride) and potassium polyvinyl sulfate. This TiO2/polymer film was employed for dihydronicotinarnide adenine dinucleotide (NADH) production from NAD+ with lipoamide dehydrogenase and methyl viologen in Tris-HCl buffer on irradiation with UV light. The ultra thin film prevented the enzyme from deactivating. In order to enhance the reduction of viologen (V), cavities for molecular recognition of V were fabricated on the surface of TiO2 through a sol-gel imprinting method. The Ti02 had recognition site for the oxidized viologen (V2+) on its surface, which was distinguishable through shape or charge differences from the reduced viologen (V+). This facilitated the inclusion of V2+ and resulted in an enhancement of the photo-induced reduction. Also, electrospun TiO2 nanofibers were prepared and applied for hydrogen evolution. After calcination at 450 C for 3 h, a highly active sample was obtained because of relatively higher crystallinity, and larger surface area as compared with other nanofibers and commercially available nanoparticles. 2011, The Society of Polymer Science, Japan
Template and target information: viologen, V
Author keywords: electrospinning, Hydrogen evolution, Layer-by-layer, methylviologen, molecular imprinting, NADH, nanofiber, Nanoparticle, Photocatalyst, TIO2


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