文献类型：会议论文

英文题名：Recyclable Ag@AgBr-gelatin film with superior visible-light photocatalytic activity for organic degradation

作者：Zhu, Jing[1,2];Li, Changjiang[1,2,3];Teng, Fei[4];Tian, Baozhu[1,2];Zhang, Jinlong[1,2]

机构：[1]E China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Inst Fine Chem, Shanghai 200237, Peoples R China;[3]Huangshan Univ, Dept Chem, Huangshan 245041, Peoples R China;[4]Nanjing Univ Informat Sci & Technol, Sch Environm Sci & Engn, Jiangsu Key Lab Atmospher Environm Monitoring & P, Nanjing 210044, Jiangsu, Peoples R China

会议论文集：7th Tokyo Conference on Advanced Catalytic Science and Technology (TOCAT)

会议日期：JUN 01-06, 2014

会议地点：Kyoto, JAPAN

语种：英文

外文关键词：Ag@AgBr; Gelatin film; Recycle; Surface plasmon resonance; Photocatalytic activity

摘要：Recyclable Ag@AgBr-gelatin film was fabricated by a versatile route, i.e., embedding Ag@AgBr grains into gelatin matrix, constructing 3D network structures via the cross-linking reaction between gelatin and cross-linking agent 1,3-bis(vinylsulfonyl) propanol, and forming Ag@AgBr-gelatin film on the nylon mesh. The microstructures and chemical compositions of the obtained films were analyzed by the means of scanning electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, thermo gravimetry/differential thermal analyzer, and Fourier transform infrared spectroscopy. It was revealed that the 3D network structure was formed via the cross-linking reaction between gelatin and cross-linking agent 1,3-bis(vinylsulfonyl) propanol (BVP). Photocatalytic degradation of methyl orange indicated that Ag@AgBr-gelatin film exhibited excellent visible-light photocatalytic activity and recyclability, due to the reason that the 3D networks can efficiently fix Ag@AgBr but hardly hinder the transmissions of reactants and degradation products. The adhesion fastness of Ag@AgBr-gelatin film on nylon mesh enhances with increasing the dosage of cross-linking agent BVP, and the lower limit of BVP dosage for forming unbroken film is 0.02 g/m(2). Excessive cross-linking would make gelatin network structure too denser, resulting in the decline of photocatalytic activity.