Study on copper modified sludge carbon catalyst and its catalytic oxidation performance in toluene
A series of copper modified sludge char(Cu/SC)catalysts were prepared by saturation impregnation and their catalytic combustion properties for toluene were studied.Modern characterization techniques,such as XRD.SEM,XPS,were used to analyze the crystal structure,apparent morphology and surface element distribution of Cu-based catalysts.The experimental results show that the Cu/SC catalyst with 15％Cu loading has better catalytic performance with T90 of 319℃ and the catalytic performance of Cu/SC is better than that of Cu/ZSM-5 with the same Cu content,mainly owing to the higher oxygen adsorption and Cu2+concentration on 15Cu/SC.In addition,15Cu/SC had good thermal stability and the catalytic activity was still about 90％after 48h of continuous reaction.The research results can provide a theoretical guidance for the high-value utilization of sludge char and the treatment of volatile organic compounds(VOCs).
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维普
