Performance of Flower-like CuO for Catalytic Degradation of Toluene
ZHANG Xuan
LIAO Yinnian
LUO Yun
QUAN Dongdong
SU Yuhong
ZHAO Mengqi
Abstract：Flower-like copper oxide used as a catalyst in degrading toluene by combustion was synthesized with a facile hydrothermal process of neither templates nor surfactants.The products prepared were characterized by field emission scanning electron microscope (FE-SEM) and X-ray powder diffraction (XRD),and the effects of NaOH concentration and hydrothermal reaction time on the morphology,crystal phase and catalytic activity of the final product were studied.FE-SEM images showed that the flower-like CuO nanostructures were composed of nano-sheets;concentration of NaOH and hydrothermal reaction time considerably influenced the morphology of CuO nanostructures;and flower-like oxides were easily fabricated by increasing NaOH concentration or shorten hydrothermal reaction time.The XRD patterns revealed that the formation of monoclinic CuO had nanostructures;and NaOH concentration and hydrothermal reaction time did not affect the crystal phase of the products.In addition,catalytic activity of the as-prepared CuO nanostructures could be verified by catalytic oxidation of toluene in air and the selectivity was expressed by the production rate of CO2.Summarily,all of the asprepared copper oxides showed a good catalytic activity,catalytic selectivity and service life,suggesting their potential applications in reducing volatile organic compounds.
Keywords：flower-like copper oxidecatalytic oxidationtoluene
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 30-35,49 )