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Photo-assisted catalytic degradation of acetaminophen using peroxymonosulfate decomposed by magnetic carbon heterojunction catalyst.
Chemosphere. 2019 Oct; 232:140-151.C

Abstract

Catalytic oxidative degradation of acetaminophen (ACT) was evaluated using magnetic mesoporous carbon (MNPs@C) coupled with UV light and peroxymonosulfate (PMS). The performance of hybrid system (i.e., MNPs@C/UV/PMS) was assessed as a function of some operational factors (e.g., reaction time and different concentrations of catalyst, PMS and ACT) in a batch system. MNPs@C represented a high magnetic response and was easily recovered from aqueous solution via an external magnet. A significant synergistic effect was observed among the applied techniques in MNPs@C/UV/PMS system for ACT degradation. After 40 min reaction, the removal efficiencies of 97.4 and 63.5% were obtained for ACT and TOC, respectively. Both adsorption and oxidation mechanisms were responsible simultaneously for ACT removal in MNPs@C/UV/PMS system. Under optimum conditions, the removal rates of ACT and TOC were reduced slightly to 91.7 and 49.4% after five consecutive catalyst uses, which indicates the excellent reusing potential of MNPs@C. In addition, a high stability was detected for as-prepared catalyst during recycling tests, since the quantity of leached Fe was <0.2 mg/L. Methanol and tert-butyl alcohol showed a strong quenching effect on the performance of MNPs@C/UV/PMS system, demonstrating the dominant role of SO4•- and HO radicals in ACT degradation process. MNPs@C in comparison with ferrous ions, as a homogeneous catalyst, showed a better performance in the activation of PMS and ACT degradation. Integration of MNPs@C, UV and PMS exhibited an excellent performance into ACT removal over 40 min reaction, which can be utilized as an effective and promising technique for the efficient decontamination of polluted waters.

Authors+Show Affiliations

Research Center for Health, Safety and Environment, Alborz University of Medical Sciences, Karaj, Iran; Department of Environmental Health Engineering, Alborz University of Medical Sciences, Karaj, Iran.College of Science and Engineering, Flinders University, Clovelly Park, SA, 5042, Australia.Student Research Committee, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran; Department of Environmental Health Engineering, Alborz University of Medical Sciences, Karaj, Iran. Electronic address: kakavandibvch@gmail.com.College of Science and Engineering, Flinders University, Adelaide, South Australia, Australia; National Centre for Groundwater Research and Training, SA, 5001, Australia.Research Center for Environmental Determinants of Health, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31152898

Citation

Noorisepehr, Mohammad, et al. "Photo-assisted Catalytic Degradation of Acetaminophen Using Peroxymonosulfate Decomposed By Magnetic Carbon Heterojunction Catalyst." Chemosphere, vol. 232, 2019, pp. 140-151.
Noorisepehr M, Ghadirinejad K, Kakavandi B, et al. Photo-assisted catalytic degradation of acetaminophen using peroxymonosulfate decomposed by magnetic carbon heterojunction catalyst. Chemosphere. 2019;232:140-151.
Noorisepehr, M., Ghadirinejad, K., Kakavandi, B., Ramazanpour Esfahani, A., & Asadi, A. (2019). Photo-assisted catalytic degradation of acetaminophen using peroxymonosulfate decomposed by magnetic carbon heterojunction catalyst. Chemosphere, 232, 140-151. https://doi.org/10.1016/j.chemosphere.2019.05.070
Noorisepehr M, et al. Photo-assisted Catalytic Degradation of Acetaminophen Using Peroxymonosulfate Decomposed By Magnetic Carbon Heterojunction Catalyst. Chemosphere. 2019;232:140-151. PubMed PMID: 31152898.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Photo-assisted catalytic degradation of acetaminophen using peroxymonosulfate decomposed by magnetic carbon heterojunction catalyst. AU - Noorisepehr,Mohammad, AU - Ghadirinejad,Khashayar, AU - Kakavandi,Babak, AU - Ramazanpour Esfahani,Amirhosein, AU - Asadi,Anvar, Y1 - 2019/05/16/ PY - 2019/02/06/received PY - 2019/04/05/revised PY - 2019/05/10/accepted PY - 2019/6/4/pubmed PY - 2019/8/16/medline PY - 2019/6/2/entrez KW - Acetaminophen KW - Heterojunction catalysts KW - Peroxymonosulfate activation KW - Photocatalytic degradation KW - Sulfate radicals SP - 140 EP - 151 JF - Chemosphere JO - Chemosphere VL - 232 N2 - Catalytic oxidative degradation of acetaminophen (ACT) was evaluated using magnetic mesoporous carbon (MNPs@C) coupled with UV light and peroxymonosulfate (PMS). The performance of hybrid system (i.e., MNPs@C/UV/PMS) was assessed as a function of some operational factors (e.g., reaction time and different concentrations of catalyst, PMS and ACT) in a batch system. MNPs@C represented a high magnetic response and was easily recovered from aqueous solution via an external magnet. A significant synergistic effect was observed among the applied techniques in MNPs@C/UV/PMS system for ACT degradation. After 40 min reaction, the removal efficiencies of 97.4 and 63.5% were obtained for ACT and TOC, respectively. Both adsorption and oxidation mechanisms were responsible simultaneously for ACT removal in MNPs@C/UV/PMS system. Under optimum conditions, the removal rates of ACT and TOC were reduced slightly to 91.7 and 49.4% after five consecutive catalyst uses, which indicates the excellent reusing potential of MNPs@C. In addition, a high stability was detected for as-prepared catalyst during recycling tests, since the quantity of leached Fe was <0.2 mg/L. Methanol and tert-butyl alcohol showed a strong quenching effect on the performance of MNPs@C/UV/PMS system, demonstrating the dominant role of SO4•- and HO radicals in ACT degradation process. MNPs@C in comparison with ferrous ions, as a homogeneous catalyst, showed a better performance in the activation of PMS and ACT degradation. Integration of MNPs@C, UV and PMS exhibited an excellent performance into ACT removal over 40 min reaction, which can be utilized as an effective and promising technique for the efficient decontamination of polluted waters. SN - 1879-1298 UR - https://www.unboundmedicine.com/medline/citation/31152898/Photo_assisted_catalytic_degradation_of_acetaminophen_using_peroxymonosulfate_decomposed_by_magnetic_carbon_heterojunction_catalyst_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0045-6535(19)30974-9 DB - PRIME DP - Unbound Medicine ER -