Performance and Mechanism of Brucite/g-C3N4 Catalyst-Activated Peroxymonosulfate for Rapid Degradation of Methylene Blue DOI

Mengxia Ma,

B. Zhang,

Xuekun Tang

et al.

Langmuir, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

The escalating utilization of dyes and the subsequent discharge dye wastewater have resulted in severe pollution, necessitating urgent development innovative treatment technologies. This article presents design a novel catalyst comprising brucite loaded with nitrogen-deficient carbon nitride nanosheets (FBCN) to activate PMS for degradation MB wastewater. effects brucite-to-urea ratio, dosage, concentration, pH value, reaction temperature, natural organic matter anions, reusability on were investigated. Under optimal conditions, 12.5%FBCN/PMS system achieved complete (100%) 10 mg/L within 5 min, significant improvement compared FB-600/PMS g-C3N4/PMS systems. enhanced catalytic activity can be attributed interaction between hydroxyl groups surface amine derived from urea, which accelerates formation double nitrogen defects (N vacancies cyano groups) g-C3N4 thereby greatly enhancing activation efficiency. In addition, excellent performance 12.5%FBCN originated its unique combination enhance electron transfer g-C3N4. also generates singlet oxygen radicals (1O2), (·OH), sulfate (SO4·-), among 1O2 is identified as being predominantly responsible degradation. study offers new approach designing efficient activators environmental remediation.

Language: Английский

Preparation and Photocatalytic Degradation Performance of C@CdxMn1−xS to Tetracycline Hydrochloride DOI Open Access

Yabin Su,

Zheng Zeng,

Haowen Chen

et al.

Materials, Journal Year: 2025, Volume and Issue: 18(5), P. 1062 - 1062

Published: Feb. 27, 2025

CdxMn1−xS solid solutions were synthesized by incorporating Mn2+ into CdS and the optimal ratio of to Cd2+ was explored via photocatalytic degradation performance for tetracycline (TC). Subsequently, composite catalyst C@CdxMn1−xS prepared loading onto biomass gasification carbon residue (C) hydrothermal method characterized various characterization tests. The TC photodegradation condition mechanism catalyzed investigated. results showed Cd0.6Mn0.4S had efficiency, which is about 1.3 times that CdS. efficiency [email protected] at mass C 1:2 best, 1.24 1.61 Under conditions (visible light irradiation 60 min, 20 mg, 40 mL solution mg/L), 90.35%. efficiencies mg/L levofloxacin, ciprofloxacin, oxytetracycline range from 89.88% 98.69%. In reaction system, •O2− h+ are dominant active species, directly participate in TC, •OH contributes little. work provides a strategy improve antibiotics, opens an interesting insight deal with waste gasification.

Language: Английский

Citations

0
Performance and Mechanism of Brucite/g-C3N4 Catalyst-Activated Peroxymonosulfate for Rapid Degradation of Methylene Blue DOI

Mengxia Ma,

B. Zhang,

Xuekun Tang

et al.

Langmuir, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

The escalating utilization of dyes and the subsequent discharge dye wastewater have resulted in severe pollution, necessitating urgent development innovative treatment technologies. This article presents design a novel catalyst comprising brucite loaded with nitrogen-deficient carbon nitride nanosheets (FBCN) to activate PMS for degradation MB wastewater. effects brucite-to-urea ratio, dosage, concentration, pH value, reaction temperature, natural organic matter anions, reusability on were investigated. Under optimal conditions, 12.5%FBCN/PMS system achieved complete (100%) 10 mg/L within 5 min, significant improvement compared FB-600/PMS g-C3N4/PMS systems. enhanced catalytic activity can be attributed interaction between hydroxyl groups surface amine derived from urea, which accelerates formation double nitrogen defects (N vacancies cyano groups) g-C3N4 thereby greatly enhancing activation efficiency. In addition, excellent performance 12.5%FBCN originated its unique combination enhance electron transfer g-C3N4. also generates singlet oxygen radicals (1O2), (·OH), sulfate (SO4·-), among 1O2 is identified as being predominantly responsible degradation. study offers new approach designing efficient activators environmental remediation.

Language: Английский

Citations

0