TY - JOUR
T1 - Copper sulfide as an excellent co-catalyst with K2S2O8 for dye decomposition in advanced oxidation process
AU - Zhu, Boyuan
AU - Cheng, Hao
AU - Qin, Yong
AU - Ma, Jianfeng
AU - Kong, Yong
AU - Komarneni, Sridhar
N1 - Funding Information:
This work was supported by the National Natural Science Foundation of China (Grant No. 21477009 ), Natural Science Foundation of Jiangsu Province ( SBK2016021419 ), “333 project” of Jiangsu Province and the Opening Project of Guangxi Key Laboratory of Green Processing of Sugar Resources (No. GXTZY201803 ). One of us (SK) was supported by the College of Agricultural Sciences under Station Research Project No. PEN04566 .
Publisher Copyright:
© 2019 Elsevier B.V.
PY - 2020/2/15
Y1 - 2020/2/15
N2 - Copper sulfide (CuS) nanoparticles were prepared at 140 °C by a simple hydrothermal method and characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and Brunauer, Emmett, Teller (BET) specific surface area method. Orange II (60 mg/L) was used as the target pollutant to investigate the degradation performance of CuS and K2S2O8 under visible light irradiation. The degradation efficiency reached 98.88% in CuS/K2S2O8/visible light system within 120 min, which showed very strong activity. Moreover, the catalyst also showed good stability and recycling performance for degrading Orange II. After three consecutive degradation cycles, the degradation efficiency of Orange II was found to be not less than 98%. The dye degradation mechanism was proposed as follows: Cu2+/Cu+ cycling catalyzed K2S2O8 to produce free radicals (SO4[rad]−), which significantly improved the oxidation ability of CuS/K2S2O8/visible light system.
AB - Copper sulfide (CuS) nanoparticles were prepared at 140 °C by a simple hydrothermal method and characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and Brunauer, Emmett, Teller (BET) specific surface area method. Orange II (60 mg/L) was used as the target pollutant to investigate the degradation performance of CuS and K2S2O8 under visible light irradiation. The degradation efficiency reached 98.88% in CuS/K2S2O8/visible light system within 120 min, which showed very strong activity. Moreover, the catalyst also showed good stability and recycling performance for degrading Orange II. After three consecutive degradation cycles, the degradation efficiency of Orange II was found to be not less than 98%. The dye degradation mechanism was proposed as follows: Cu2+/Cu+ cycling catalyzed K2S2O8 to produce free radicals (SO4[rad]−), which significantly improved the oxidation ability of CuS/K2S2O8/visible light system.
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U2 - 10.1016/j.seppur.2019.116057
DO - 10.1016/j.seppur.2019.116057
M3 - Article
AN - SCOPUS:85072221774
SN - 1383-5866
VL - 233
JO - Separation and Purification Technology
JF - Separation and Purification Technology
M1 - 116057
ER -