Degradation of acid scarlet 3R with CuO/SiO2 hollow sphere catalyst

2015 Global Conference on Polymer and Composite Materials

材料科学;化学

Xie, F.^1,2 ; Zhong, J.^1 ; Wang, L.^1 ; Wang, K.^2 ; Hua, D.X.^2

School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin, China^1

College of Science, China University of Petroleum (East China), Qingdao, China^2

关键词: Acid scarlet 3R;    Catalyst loadings;    Fenton-like process;    Heterogeneous fenton;    Incipientwetness impregnation;    Initial dye concentration;    Operating condition;    Reactive azo dye;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/87/1/012039/pdf
DOI  :  10.1088/1757-899X/87/1/012039

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Silica-supported copper catalyst materials have been synthesized via an incipient wetness impregnation. The resulting samples were characterized using X-ray diffraction (XRD) and Scanning electron microscope (SEM). The heterogeneous Fenton-like oxidation of reactive azo dye solutions by this catalyst was also investigated. The effects of various operating conditions on decolorization performance were evaluated, namely hydrogen peroxide dosage, initial pH, catalyst loading and initial dye concentration. The results indicated that by using 34 mmol/L of H2O2and 6.0 g L-1of the catalyst at 60°C, pH 3.5, 97% of decolorization efficiency was achieved within 90 min. CuO/SiO2hollow sphere is shown a promising catalyst for degradation of azo dye aqueous solution by Fenton-like processes.