The Decoloration of Anionic and Cationic Dyes Using ZnO and ZnO-Cu2O

作者: Jiang Dong Dai , Luo Gan , Hai Yan Zhang , Chun Ming Liu

DOI: 10.3390/CRYST9050229

关键词: Ultrasonic irradiationAdsorptionMetal foamDepletion regionCationic polymerizationChemical engineeringElectrochemistryHydrothermal circulationMaterials science

摘要: ZnO and ZnO-Cu2O were grown on aluminum foam using hydrothermal method. Due to the positively charged sites surface, both show higher adsorption capability towards anionic dyes, but poorer cationic dyes. The ability of is smaller than that since there a depletion layer at interface. In order decolorize are used as sono-catalyst with ultrasonic irradiation. better in sono-catalysis decoloration This may be due enhanced piezoelectricity electrochemical activity, free electrons reduced layer.

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