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《Materials Review》 2007-S2
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Synthesis and Characterization of Fe_2O_3/La_2O_3/CNTs Catalyst for Water Treatment with Microwave Technology

SHI Shujie,WANG Peng, YANG Yu, YUAN Weibo (School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090; College of Science, Northeast Forestry University, Harbin 150040)  
Carbon nanotubes-supported Fe2O3/La2O3 catalysts are synthesized by chemical liquid deposition-microwave irradiation, using Fe(OH)3 and La(OH)3 as iron and lanthanum sources. Pure alcohol is added to disperse the HNO3 pretreated carbon nanotubes. Fe3+ and La3+ are added respectively. After the samples are irradiated, the catalysts are characterized by TEM, XRD, XPS, and are applied in the treatment of high concentration phenol wastewater, by microwave enhanced catalytic wet oxidation. In simulating the treatment of phenol wastewater, at the concentration of 5000 mg/L, the optimal treatment conditions are as follows: the microwave power is 700W, the irradiation time is 5min, the microwave working pressure is 0.4 MPa, the catalyst concentration is 0.125~2.5g/L, the H2O2 concentration is 25g/L and the pH of the system is equal to or below 8.0. The removal rate of phenol in the water reaches 80%.
【Fund】: 高校博士点专项科研基金(20040213027);; 国家自然科学基金(50678045)
【CateGory Index】: TQ426.6
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