Iron Promoted TiO2-Activated Carbon Nanocomposites for Photocatalytic Degradation of Congo Red in Water DOI Open Access
Daniela Negoescu, Veronica Brătan,

Mihaela Gherendi

et al.

Catalysts, Journal Year: 2024, Volume and Issue: 14(12), P. 844 - 844

Published: Nov. 22, 2024

Nanocomposites containingTiO2 and activated carbon were obtained by the sol-gel method in presence of Brij 58 surfactant. The sample with a higher surface area (185.6 m2/g) was promoted Fe impregnating it aqueous solution Fe(NO3)3. iron loadings, measured using X-ray fluorescence, 0.83%, 3.30% 7.17%. TiO2 anatase identified all samples diffraction Raman spectroscopy, but oxides could not be detected. However, infrared spectroscopy indicated existence Fe-O Fe-O-Ti bonds. photoelectron revealed Fe2+ for lower content mixture Fe3+ 7.17% Fe. UV-Vis photoluminescence showed alongside TiO2. This combination led to new properties due generation intermediate energy levels defects, contributing an enhancement photocatalytic performance. highest photodegradation efficiency Congo red (84.46%) under visible light irradiation acidic conditions. synergistic contribution dye adsorption demonstrated, taking into account ZPC values nanocomposites. Kinetic studies completed reaction mechanisms based on results scavengers.

Language: Английский

Utilization of Stable and Efficient High‐Entropy (Ni0.2Zn0.2Mg0.2Cu0.2Co0.2)Al2O4 Catalyst with Polyvalent Transition Metals to Boost Peroxymonosulfate Activation toward Pollutant Degradation DOI Open Access
Xinmiao Yu, Shifa Wang,

Yuanyuan Zhang

et al.

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

Published: Jan. 23, 2025

Abstract A polyacrylamide gel method has been used to synthesize a variety of polyvalent‐transition‐metal‐doped Ni position high entropy spinel oxides (Ni 0.2 Zn Mg Cu Co )Al 2 O 4 ‐800 °C (A ) on the basis NiAl , and catalytic activity is studied under synergistic action peroxymonosulfate (PMS) activation simulated sunlight. The containing polyvalent transition metals 2+ can effectively activate PMS efficiently degrade levofloxacin (LEV) tetracycline hydrochloride (TCH) sunlight irradiation. After 90 min light exposure, degradation percentages LEV (50 mg L −1 TCH (100 by /PMS/vis system reach 87.0% 90.2%, respectively. superoxide radicals, photoinduced holes, singlet dominate process, while hydroxyl radicals sulfate play only small role. adsorption energy charge density difference between different systems are calculated functional theory, efficiency combining with change length O─O bond after adsorption. mechanism proposed, which provides new idea for study in field catalysis.

Language: Английский

Citations

2
One-step hydrothermal synthesis of CePO4@C with highly efficient photocatalytic performance DOI
Xutao Ning, Yuan Zhong, Bin Zeng

et al.

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: 1012, P. 178593 - 178593

Published: Jan. 1, 2025

Language: Английский

Citations

1
Microwave-assisted synthesis and photocatalytic degradation of organic pollutant using CeO2-CuO-ZnO nanocomposite: environmental relevance and life cycle assessment DOI

Putthadee Ubolsook,

Krissana Khamfong,

Pongthep Jansanthea

et al.

Emergent Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 4, 2025

Language: Английский

Citations

1
Microwave-assisted hydrothermal synthesis of Ag/Bi2MoO6/ZnO heterojunction with nano Ag as electronic accelerator pump for high-efficienty photocatalytic degradation of levofloxacin DOI
Jun Li,

Xin Nie,

Lijian Meng

et al.

Applied Surface Science, Journal Year: 2024, Volume and Issue: 678, P. 161143 - 161143

Published: Sept. 1, 2024

Language: Английский

Citations

8
A Novel Ce-Bi2MoO6/CeVO4 Z-scheme Heterojunction for Peroxymonosulfate Activation toward Levofloxacin Photodegradation DOI

Xin Nie,

Jun Li, Guohua Dong

et al.

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 116928 - 116928

Published: May 1, 2025

Language: Английский

Citations

0
Nickel metal particles encapsulated in carbon shells as efficient bifunctional electrocatalysts for urea-assisted hydrogen production DOI
Yu Zhang,

Weimeng Chi,

Zhuoxun Yin

et al.

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 1002, P. 175383 - 175383

Published: Oct. 1, 2024

Language: Английский

Citations

2
Enhanced Photodegradation of Congo Red Using RSM‐Optimized TiO₂ on Borassus flabellifer Male Inflorescence Biochar DOI Open Access

Raveena Malkari Katika,

Sumalatha Boddu, Ramesh Naidu Mandapati

et al.

ChemistrySelect, Journal Year: 2024, Volume and Issue: 9(41)

Published: Oct. 29, 2024

Abstract This study explores the use of biochar, derived from Borassus flabellifer male inflorescence biomass as an alternative support for titanium dioxide (TiO 2 ) to enhance its photocatalytic activity in degrading Congo red (CR) dye pollutant. The biochar was synthesized through controlled pyrolysis and subsequently combined with TiO form a nanocomposite via hydrothermal method. primary goal creating this is breakdown azo dyes, such CR, using UV irradiation. Comprehensive characterization techniques, including XRD, FTIR, SEM coupled EDAX, XPS, UV‐DRS confirmed successful integration . enhanced photocatalyst performance attributed increased surface area, improved light absorption, efficient charge separation facilitated by support. Furthermore, experimental parameters were optimized response methodology (RSM). These studies demonstrated that CR concentration, contact duration, pH, quantity are critical factors oxidation process. strong correlation coefficient first order model indicated data described RSM, agreed obtained results. highlights potential agricultural waste‐derived cost‐effective sustainable TiO₂, offering viable solution remediation dye‐contaminated water.

Language: Английский

Citations

2
Enhanced removal of Cr(VI) from aqueous solutions using a zero-valent nickel/iron-PDA@PVDF membrane prepared via a simple blending method DOI

Mingchun Bi,

Yuning Liang,

Weimeng Chi

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 157891 - 157891

Published: Nov. 1, 2024

Language: Английский

Citations

2
Iron Promoted TiO2-Activated Carbon Nanocomposites for Photocatalytic Degradation of Congo Red in Water DOI Open Access
Daniela Negoescu, Veronica Brătan,

Mihaela Gherendi

et al.

Catalysts, Journal Year: 2024, Volume and Issue: 14(12), P. 844 - 844

Published: Nov. 22, 2024

Nanocomposites containingTiO2 and activated carbon were obtained by the sol-gel method in presence of Brij 58 surfactant. The sample with a higher surface area (185.6 m2/g) was promoted Fe impregnating it aqueous solution Fe(NO3)3. iron loadings, measured using X-ray fluorescence, 0.83%, 3.30% 7.17%. TiO2 anatase identified all samples diffraction Raman spectroscopy, but oxides could not be detected. However, infrared spectroscopy indicated existence Fe-O Fe-O-Ti bonds. photoelectron revealed Fe2+ for lower content mixture Fe3+ 7.17% Fe. UV-Vis photoluminescence showed alongside TiO2. This combination led to new properties due generation intermediate energy levels defects, contributing an enhancement photocatalytic performance. highest photodegradation efficiency Congo red (84.46%) under visible light irradiation acidic conditions. synergistic contribution dye adsorption demonstrated, taking into account ZPC values nanocomposites. Kinetic studies completed reaction mechanisms based on results scavengers.

Language: Английский

Citations

0