Abstract：The advanced oxidation technology based on persulfate (PMS) has the characteristics of high efficiency and environmental friendliness, which has a very good application prospect in the field of water treatment. A series of heterogeneous catalysts CoxNi1-xTiO3 with different Co/Ni ratios were prepared by using the method of glycol precipitation-calcination by taking advantage of the synergistic activation of PMS among transition metals. The phase and microstructure of the catalyst were analyzed by X-ray diffraction (XRD) and scanning electron microscopy (SEM). At the same time, the effects of catalyst dosage, PMS concentration, pH value and catalyst recycling on the degradation of Ciprofloxacin (CIP) were investigated. The optimal conditions were 0.20g/L Co0.7Ni0.3TiO3, 0.5mmol/L PMS and pH=6. The efficiency of CIP degradation was 90.01% within 60min. The experiment of free radical quenching confirmed that SO·-4 is the main active species in the process of advanced oxidative degradation.
ZHANG Z, CHEN D, ZHAO W, et al. Environmental Levels and Degradation Behavior of Pharmaceuticals and Personal Care Products (PPCPs) in the Water Environment［J］. Rock and Mineral Analysis, 2023, 42(4): 649-666.
MEUNIER B. ChemInform abstract: metalloporphyrins as versatile catalysts for oxidation reactions and oxidative DNA cleavage［J］. Cheminform, 2010, 24: 1411-1456.
WANG D, LIU G, WANG Q, et al. The Effect of Multi-Polluted and Mixed Waste Water on Fish’s Respiration［J］. Journal of Fisheries of China, 1993, 17(2): 172-174.
［6］
GLAZE W, KANG J, CHAPIN D. The chemistry of water treatment processes involving ozone, hydrogen peroxide and ultraviolet radiation［J］. Ozone Science & Engineering, 1987, 9(4): 335-352.
［8］
HU P, LONG M. Cobalt-catalyzed sulfate radical-based advanced oxidation: a review on heterogeneous catalysts and applications［J］. Applied Catalysis B: Environmental, 2016, 181: 103-117.
［10］
WANG J, WANG S. Activation of persulfate(PS) and peroxymonosulfate(PMS) and application for the degradation of emerging contaminants［J］. Chemical Engineering Journal, 2018, 334: 1502-1517.
［11］
LANG C, BRUELL C, MARLEY M, et al. Thermally activated PS oxidation of trichloroethylene (TCE) and 1, 1, 1-trichloroethane (TCA) in aqueous systems and soil slurries, soil sediment contam［J］. Soil & Sendiment Contamination, 2003, 12: 207-228.
LIANG T, MA J, WANG S J, et al. Impacts of AOC by O3/TiO2 Catalytic Oxidation in Drinking Water［J］. Environmental Science, 2007, 28(9): 2004-2008.
［16］
YANG S, WANG P, YANG X, et al. Degradation efficiencies of azo dye acid orange 7 by the interaction of heat, UV and anions with common oxidants: persulfate, peroxymonosulfate and hydrogen peroxide［J］. Journal of Hazardous Materials, 2010, 179(1-3): 552-558.
［17］
HU P, LONG M. Cobalt-catalyzed sulfate radical-based advanced oxidation: a review on heterogeneous catalysts and applications［J］. Applied Catalysis B: Environmental, 2016, 181: 103-117.
NICOLETA S, CAMILLA F, ROBERTA, et al. Evaluation of groundwater contamination sources by plant protection products in hilly vineyards of Northern Italy［J］. Science of the Total Environment, 2020, 749: 141495.
FLANAGAN J, GRIFFITH W, SKAPSKI A. The active principle of caros acid, HSO-5 X-ray crystal structure of KHSO5·H2O［J］. Chem Commun, 1984, 23: 1574-1575.
［5］
HOU Z, LAO W, WANG Y, et al. Homotopy-based hyper-heuristic searching approach for reciprocal feedback inversion of groundwater contamination source and aquifer parameters［J］. Applied Soft Computing, 2021, 104(4): 107191.
［9］
LIU C, WU B. Sulfate radical-based oxidation for sludge treatment: A review［J］. Chemical Engineering Journal, 2018, 335: 865-875.
WEI J, HAN D, BI J, et al. Fe-doped ilmenite CoTiO3 for antibiotic removal: electronic modulation and enhanced activation of peroxymonosulfate［J］. Chemical Engineering Journal, 2021, 423: 130165.
［20］
GUO Y, LONG J, HUANG J, et al. Can the commonly used quenching method really evaluate the role of reactive oxygen species in pollutant abatement during catalytic ozonation［J］. Water research, 2022, 215: 118275.
［13］
KOLTHOFF I, MILLER I. The Chemistry of PS. I. the kinetics and mechanism of the decomposition of the PS ion in aqueous mediuml［J］. Journal of the American Chemical Society, 1951, 73: 1-30.
2024, Vol. 45 
