Comparison of Cu2+ and Zn2+ thermalcatalyst in treating diazo dye

8th International Conference on Future Environment and Energy

生态环境科学;能源学

Lau, Y.Y.^1 ; Wong, Y.S.^1 ; Ong, S.A.^1 ; Lutpi, N.A.^1 ; Ho, L.N.^2

School of Environmental Engineering, Universiti Malaysia Perlis, Kompleks Pusat Pengajian Jejawi 3, Perlis, Arau

02600, Malaysia^1

School of Materials Engineering, Universiti Malaysia Perlis, Kompleks Pusat Pengajian Jejawi 3, Perlis, Arau

02600, Malaysia^2

关键词: Benzene ring;    Chemical networks;    Color removal efficiency;    Degradation reaction;    Reactive black 5;    Sulphates;    Wavelength scan;    Zinc oxide (ZnO);   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/150/1/012014/pdf
DOI  :  10.1088/1755-1315/150/1/012014

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

This research demonstrates the comparison between copper (II) sulphate (CuSO4) and zinc oxide (ZnO) as thermalcatalysts in thermolysis process for the treatment of diazo reactive black 5 (RB 5) wastewater. CuSO4was found to be the most effective thermalcatalyst in comparison to ZnO. The color removal efficiency of RB 5 catalysed by CuSO4and ZnO were 91.55 % at pH 9.5 and 7.36 % at pH 2, respectively. From the UV-Vis wavelength scan, CuSO4catalyst is able to cleave the molecular structure bonding more efficiently compared to ZnO. ZnO which only show a slight decay on the main chemical network strands: azo bond, naphthalene and benzene rings whereas CuSO4catalyst is able to fragment azo bond and naphthalene more effectively. The degradation reactions of CuSO4and ZnO as thermalcatalysts in thermolysis process were compared.