Preparation of Pt/TiO2 and its catalytic performance in hydrogen production from organic acid in wastewater
JIANG Qiao-juan1, LI Hua1, LIU Yan-ping1, ZHENG Xian-jun2, FU Chang-liang1, LIU Cong-jun1
1. School of Chemical Engineering & Food Science, Zhengzhou Institute of Technology, Zhengzhou 450044, China; 2. Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China
Abstract: Nano-TiO2 is prepared by sol-gel method and then is modified by doping with Pt via noble metal deposition method.The characterization through XRD and TEM shows that the particle sizes of Pt/TiO2 are averaged at 12 nm.The total hydrogen production over photocatalytic action is improved through the doping modification by Pt.It is found that the best photocatalytic hydrogen production performance can be achieved by Pt/TiO2 with about 1% of Pt and a mass concentration of 0.20 g·L-1.Acetic acid, propanoic acid and n-butyric acid are selected as organic acid representatives in wastewater and the effect of initial concentration on hydrogen production is examined.The total hydrogen production reaches the best when the initial concentration of acetic acid and propanoic acid both are 0.12 mol·L-1, and the unit hydrogen production is 4, 288 mL per molar of acetic acid and 3, 710 mL per molar of propanoic acid, respectively.The total hydrogen production reaches the best when the initial concentration of n-butyric acid is 0.16 mol·L-1, the hydrogen production is 1, 384 mL per molar of n-butyric acid.
姜巧娟, 李华, 刘彦平, 郑先君, 付长亮, 刘从军. Pt/TiO2的制备及其在利用废水中有机酸产氢中的性能研究[J]. 现代化工, 2018, 38(9): 160-163.
JIANG Qiao-juan, LI Hua, LIU Yan-ping, ZHENG Xian-jun, FU Chang-liang, LIU Cong-jun. Preparation of Pt/TiO2 and its catalytic performance in hydrogen production from organic acid in wastewater. Modern Chemical Industry, 2018, 38(9): 160-163.