Preparation and characterization of CuNiFe hydrotalcite-derived compounds as catalysts for the hydrolysis of carbon disulfide》.pdfVIP

Chemical Engineering Journal 284 (2016) 103–111 Contents lists available at ScienceDirect Chemical Engineering Journal journal homepage: www.else /locate/cej Preparation and characterization of Cu/Ni/Fe hydrotalcite-derived compounds as catalysts for the hydrolysis of carbon disulfide Qian Li, Honghong Yi ⇑, Xiaolong Tang, Shunzheng Zhao, Bin Zhao, Dingding Liu, Fengyu Gao Department of Environmental Engineering, College of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, PR China h i g h l i g h t s Calcined Cu/Ni/Fe HTLCs as catalysts for hydrolysis CS2 at low temperature. The ratio of metal components in the catalysts has great effect on hydrolysis efficiency of CS . 2 Introduction of OH could produce basic sites which were the active centers of the reaction. The larger specific surface and smaller mesoporous favored hydrolysis reaction. a r t i c l e i n f o a b s t r a c t Article history: A series of Cu/Ni/Fe ternary hydrotalcite-like compounds with various Cu/Ni/Fe mole ratios, pH and crys- Received 27 April 2015 tallization time were synthesized by co-precipitation method and calcined at 350 C for 3 h. The results Received in revised form 7 July 2015 showed that the preparing conditions of catalyst under the Cu/Ni mole ratio of 3, the M2+/M3+ of 2, Accepted 19 August 2015 pH = 11 and crystallization time not less than 8 h had highest activit