标題： Degradation of Acid Orange 7 by an ultrasound/ZnO-GAC/persulfate process

作者： Liu, FZ (Liu, Fuzhen); Yi, P (Yi, Pan); Wang, X (Wang, Xue); Gao, H (Gao, Hong); Zhang, H (Zhang, Hui)

來源出版物: SEPARATION AND PURIFICATION TECHNOLOGY 卷: 194 頁: 181-187 DOI: 10.1016/j.seppur.2017.10.072 出版年: APR 3 2018

摘要：Granular activated carbon (GAC) supported ZnO catalyst (ZnO-GAC) was prepared to activate persulfate (PS) for the decolorization of Acid Orange 7 (AO7) in the presence of ultrasonic irradiation (US). The effects of initial pH, PS concentration, catalyst dosage, initial dye concentration, and reaction temperature were investigated. The results showed that the decolorization efficiency increased with the increase of catalyst dosage and temperature, but decreased with the increase of initial dye concentration and initial pH, and the optimal PS concentration for color removal was 0.5 g L-1. Radical quenching tests were performed by using ethanol, tert-butanol and phenol to verify the formation of sulfate radicals and hydroxyl radicals in the US/ZnO-GAC/PS process. Under the optimal conditions, 91.2% of decolorization was achieved and 83.1% of TOC was removed after 60 min treatment. Activated sludge inhibition tests were carried out to monitor the change of toxicity during the treatment of AO7 solution.

入藏号：WOS:000425072100023

文獻類型：Article

語種：English

作者關鍵詞： Acid Orange 7; ZnO-GAC; Ultrasound; Sonoluminescence; Sulfate radical

擴展關鍵詞： ENHANCED HETEROGENEOUS ACTIVATION; DOPED ZNO NANOPARTICLES; ADVANCED FENTON PROCESS; AQUEOUS-SOLUTION; PHOTOCATALYTIC DEGRADATION; ULTRASONIC IRRADIATION; SONOCATALYTIC DEGRADATION; FE-CO/SBA-15 CATALYST; RATE CONSTANTS; CARBON

通訊作者地址： Zhang, H (通訊作者),Wuhan Univ, Hubei Environm Remediat Mat Engn Technol Res Ctr, Dept Environm Sci & Engn, Wuhan 430079, Hubei, Peoples R China.

電子郵件地址：eeng@whu.edu.cn

地址：[Liu, Fuzhen; Yi, Pan; Wang, Xue; Gao, Hong; Zhang, Hui] Wuhan Univ, Hubei Environm Remediat Mat Engn Technol Res Ctr, Dept Environm Sci & Engn, Wuhan 430079, Hubei, Peoples R China.

影響因子：3.359