Cited by Validation of quenching effectiveness and pollutant degradation ability of singlet oxygen through model reaction system

Alcohols as Scavengers for Hydroxyl Radicals in Photocatalytic Systems: Reliable or Not? DOI

Ding Li,

Yi‐Ming Hou,

Haijin Liu

et al.

ACS ES&T Water, Journal Year: 2023, Volume and Issue: 3(11), P. 3534 - 3543

Published: Oct. 6, 2023

The evaluation of the contributions hydroxyl radicals (•OH) is great significance toward elucidation photocatalytic mechanisms. Currently, trapping (or quenching) tests have been widely conducted for determination reactive species, where alcohols are often selected as •OH scavengers. However, their feasibility and reliability under scrutiny by researchers need to be further explored. For this study, a system was established using P25 photocatalyst bisphenol A (BPA) oxalic acid model pollutants UV light irradiation. quenching capacities five were investigated at concentrations ranging from 0.5 100 mM. revealed different abilities in BPA systems. Further, amount H2O2 generated highly concentrated quantified, which significantly influenced estimation contribution •OH. Unexpectedly, •O2– also formed system, whose degradation mistakenly attributed This study provides comprehensive most commonly used scavengers Based on findings, it strongly recommends reconsidering these emphasizes developing more reliable methods detecting radicals.

Language: Английский

Citations

Long-lasting performance of high-flux perovskite membrane for catalytic degradation of organic pollutants DOI

Jinping Liang,

Kai Gao,

Aijuan Zhou

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2023, Volume and Issue: 327, P. 122440 - 122440

Published: Feb. 11, 2023

Membrane separation for wastewater remediation has been perplexed by membrane fouling, and the design of highly antifouling membranes high-flux operation remains challenging. Herein, Sm0.5Sr0.5CoO3-δ (SSC700) was coupled with peroxymonosulfate (PMS) catalysis. SSC700 demonstrated superb efficacy in batch fixed-bed reactions, generating sulfate radicals (SO4−•) hydroxyl (HO•) pollutants oxidation. Additionally, robust membrane/PMS systems, Rhodamine B (RhB) realized > 91% removal 50 hours from laboratory under fluxes above 368 L/(m2·h), strikingly, ciprofloxacin, RhB sulfamerazine secondary effluent attained 60-80% (50 hours), almost 100% (100 hours) 50-60% around 1000, 600 900 respectively. The reactive Co2+/Co3+/Co4+ redox couples accounted prominent activity, stability capability membranes. Apart Co species, Sm/Sr played significant roles organics degradation. Also, bio-toxicity evolution during ciprofloxacin mineralization monitored. This study dedicates to functional membranes/PMS integrated systems synergistic decontamination defouling.

Language: Английский

Citations

Integrating g-C3N4 nanosheets with MOF-derived porous CoFe2O4 to form an S-scheme heterojunction for efficient pollutant degradation via the synergy of photocatalysis and peroxymonosulfate activation DOI

Lijun Chen, Feihong Wang, Jiahao Zhang

et al.

Environmental Research, Journal Year: 2023, Volume and Issue: 241, P. 117653 - 117653

Published: Nov. 18, 2023

Language: Английский

Citations

Bimetallic Fe:Co metal–organic framework (MOF) with unsaturated metal sites for efficient Fenton-like catalytic degradation of oxytetracycline (OTC) antibiotics DOI

Thilina Rajeendre Katugampalage, Preeti Waribam, Pakorn Opaprakasit

et al.

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 479, P. 147592 - 147592

Published: Nov. 22, 2023

Language: Английский

Citations

Validation of quenching effectiveness and pollutant degradation ability of singlet oxygen through model reaction system DOI

Limiao Cai,

Qian Yao, Xiaodong Du

et al.

Journal of Hazardous Materials, Journal Year: 2023, Volume and Issue: 460, P. 132488 - 132488

Published: Sept. 7, 2023

Language: Английский

Citations