Sulphated Electric Arc Furnace Slag Asfenton-Like Catalyst for Degradation of Reactive Black 5

Euroinvent ICIR 2018

Zubir, N.A.^1,2 ; Nasuha, N.^1,2 ; Alrozi, R.^1,2

Faculty of Chemical Engineering, Universiti Teknologi MARA (UiTM), Pulau Pinang, Malaysia^1

Hybrid Nanomaterials Interfaces and Simulation (HYMFAST), Faculty of Chemical Engineering, Universiti Teknologi MARA (UiTM), Pulau Pinang, Malaysia^2

关键词: Degradation efficiency;    Electric arc furnace slags;    Fenton likes;    Nitrogen adsorption;    Oxidative degradation;    Reactive black 5;    SEM-EDX;    Surface acidity;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/374/1/012049/pdf
DOI  :  10.1088/1757-899X/374/1/012049

来源: IOP

【 摘 要 】

Sulphated electric arc furnace slag (S-EAFS) was obtained through a facile chemical and thermal treatment method. The S-EAFS was evaluated as a Fenton-like catalyst for the oxidative degradation of reactive black 5 (RB5). The S-EAFS was characterized by XRD, SEM-EDX and nitrogen adsorption analysis. The highest RB5 degradation efficiency obtained in this study was above 90% which was maintained across seven successive cycles with minimum iron leaching. This was achieved at a RB5 concentration of 0.15 gL-1(50 ppm) with 8 mM of H2O2and a pH of 4.5. Characterization revealed that the presence of sulphated groups (SO42-) within the EAFS improved the surface acidity of the material and corresponded to an increase in the catalytic activity for the degradation of RB5 at mild pH.