Syntheses and Evaluations of CdS with Various Morphologies for Photocatalytically Reducing CO2
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2018年第1期
论文作者：杨晓晓 XIN Weiyue 尹晓红 SHAO Xiao
文章页码：78 - 84
摘 要：A series of CdS with various shapes of microsphere, flower-like and leaf-like were templatefreely synthesized by a hydrothermal method. Powder X-ray diffraction（XRD）, Brunauer-Emmett-Teller（BET）, scanning electron microscopy（SEM） and UV-vis absorption spectroscopy（UV-vis） were applied to characterize the morphology, optical and other physical properties of the as-prepared CdS. An optical spectrum analyzer was used to measure the wavelength of the illuminant on the slurry in the activity evaluations of photocatalytic reduction of CO2 over CdS. Both sources of cadmium and sulfur had great impact on the CdS morphology as can be seen in the SEM images. By means of a series of activity evaluations, the microspheric CdS made from cadmium nitrate and thioacetamide showed better photocatalytic activity for the reduction of CO2 to methyl formate（MF） in methanol than the flower-like and leaf-like CdS catalysts.
杨晓晓1，XIN Weiyue2，尹晓红1，SHAO Xiao1
1. Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry and Chemical Engineering,Tianjin University of Technology2. School of Chemical Engineering, East China University of Science and Technology
摘 要：A series of CdS with various shapes of microsphere, flower-like and leaf-like were templatefreely synthesized by a hydrothermal method. Powder X-ray diffraction（XRD）, Brunauer-Emmett-Teller（BET）, scanning electron microscopy（SEM） and UV-vis absorption spectroscopy（UV-vis） were applied to characterize the morphology, optical and other physical properties of the as-prepared CdS. An optical spectrum analyzer was used to measure the wavelength of the illuminant on the slurry in the activity evaluations of photocatalytic reduction of CO2 over CdS. Both sources of cadmium and sulfur had great impact on the CdS morphology as can be seen in the SEM images. By means of a series of activity evaluations, the microspheric CdS made from cadmium nitrate and thioacetamide showed better photocatalytic activity for the reduction of CO2 to methyl formate（MF） in methanol than the flower-like and leaf-like CdS catalysts.
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