HIGH-EFFICIENT REMOVAL OF TETRACYCLINE HYDROCHLORIDE BASED ON PEROXYMONOSULFATE ACTIVATED BY CuO/EXPANDED GRAPHITE COMPOSITE

XU Rui; YANG Wei; YANG Zhe; CHENG Qian-lan; GU Li-ting; GUO Sheng

doi:10.13205/j.hjgc.202002006

Volume 38 Issue 2

Feb. 2020

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XU Rui, YANG Wei, YANG Zhe, CHENG Qian-lan, GU Li-ting, GUO Sheng. HIGH-EFFICIENT REMOVAL OF TETRACYCLINE HYDROCHLORIDE BASED ON PEROXYMONOSULFATE ACTIVATED BY CuO/EXPANDED GRAPHITE COMPOSITE[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(2): 48-54,47. doi: 10.13205/j.hjgc.202002006

Citation:

XU Rui, YANG Wei, YANG Zhe, CHENG Qian-lan, GU Li-ting, GUO Sheng. HIGH-EFFICIENT REMOVAL OF TETRACYCLINE HYDROCHLORIDE BASED ON PEROXYMONOSULFATE ACTIVATED BY CuO/EXPANDED GRAPHITE COMPOSITE[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(2): 48-54,47. doi: 10.13205/j.hjgc.202002006

Citation:

XU Rui, YANG Wei, YANG Zhe, CHENG Qian-lan, GU Li-ting, GUO Sheng. HIGH-EFFICIENT REMOVAL OF TETRACYCLINE HYDROCHLORIDE BASED ON PEROXYMONOSULFATE ACTIVATED BY CuO/EXPANDED GRAPHITE COMPOSITE[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(2): 48-54,47. doi: 10.13205/j.hjgc.202002006

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HIGH-EFFICIENT REMOVAL OF TETRACYCLINE HYDROCHLORIDE BASED ON PEROXYMONOSULFATE ACTIVATED BY CuO/EXPANDED GRAPHITE COMPOSITE

doi: 10.13205/j.hjgc.202002006

School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China

Received Date: 2019-02-20

Abstract

Abstract

A CuO-doped expanded graphite composite (CuO/EG) was prepared via impregnation and calcination. The properties including crystalline structure and morphology of CuO/EG were characterized by X-ray diffractometer (XRD) and scanning electron microscope (SEM). The as-prepared catalyst was applied for catalytic degradation of tetracycline hydrochloride (TC) wastewater by activation of peroxymonosulfate (PMS). TC could be completely degraded by CuO/EG/PMS system within 20 min under the reaction condition of calcination temperature 500℃, doping ratio of CuO to EG of 1:4, 0.2 g/L catalyst and 0.2 g/L PMS. CuO/EG/PMS system demonstrated excellent catalytic performance in a wide range of pH (3~9) and under the coexistence of inorganic anions. Moreover, the CuO/EG catalyst still exhibited good reusability even after 5 successive runs for TC degradation. Quenching experiments confirmed that SO₄^-·radicals were the dominant reactive species during the degradation process. In addition, CuO/EG/PMS system exhibited satisfactory removal of dyes such as Rhodamine B and acid red G, indicating that the catalyst had a novel universal applicability.
- copper oxide,
- expanded graphite,
- peroxymonosulfate,
- sulfate radical,
- tetracycline hydrochloride

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