Dual Z‐scheme ternary heterojunction photocatalyst with enhanced visible‐light photocatalytic degradation of organic pollutants DOI

Fangzhou Wu,

Ying Liu,

Xiyu Chen

et al.

Journal of the Chinese Chemical Society, Journal Year: 2023, Volume and Issue: 71(1), P. 35 - 44

Published: Nov. 28, 2023

Abstract Photocatalysis technology driven by solar energy is considered to be promising for solving crisis and environmental problems. Graphitic carbon nitride has been widely researched in the photocatalysis field due its suitable band positions, non‐toxicity, easy synthesis, high stability, low cost. However, slow separation rapid recombination of photogenerated carriers, poor visible light response specific surface area seriously limit photocatalytic activity g‐C 3 N 4 . Here, firstly, nanosheets with a large 152.2 m 2 g −1 which provide more surface‐active sites were prepared secondary calcination method. Next, MoS metal–organic framework (MIL‐101(Cr)) tightly bonded on form ternary /MoS /MIL‐101(Cr) heterojunction photocatalyst. In which, dual Z‐scheme photocatalyst composed , MIL‐101(Cr) was constructed facilitate migration charges. At same time, enhanced The optimal displayed highest methyl orange degradation (degradation efficiency 98% 60 min) under irradiation. Finally, mechanism electron transfer channel h + ‐·O − double oxidation proposed discussed.

Language: Английский

Insights into the electron activation mechanisms at the micro level by nano zero-valent iron supported by molybdenum disulfide (nZVI@MD) from preparation to application DOI

Chundi Zhou,

Minghao Sui,

Songhang Du

et al.

Journal of Hazardous Materials, Journal Year: 2023, Volume and Issue: 458, P. 131968 - 131968

Published: June 28, 2023

Language: Английский

Citations

13

Oxygen Vacancy‐Enhanced Centrosymmetric Breaking of SrFeO3‐x for Piezoelectric‐Catalyzed Synthesis of H2O2 DOI
Nan Wang, Wen‐Hua Yang,

Rongxu Wang

et al.

Small, Journal Year: 2023, Volume and Issue: 20(13)

Published: Nov. 14, 2023

Abstract Normally, only noncentrosymmetric structure of the materials can potentially be piezoelectric. Thus, it is limited in field piezoelectricity for centrosymmetric material. In this work, performance successfully achieved from SrFeO 3‐ x by modulating o ygen vacancies, which have a surface piezoelectric potential up to 93 mV using Kelvin‐probe force microscopy (KPFM). Moreover, effects are also evaluated catalytic effect and density functional theory calculations (DFT). The results show that piezo‐catalytic degradation tetracycline reaches 96% after 75 min ultrasonic mechanical vibration production H 2 O synthesis could reach 1821 µmol L −1 . addition, DFT indicate intrinsic vacancies effectively promotes adsorption activation as well intermediates improves activity. This work provides an effective basis realizing regulating development properties.

Language: Английский

Citations

13

Enhanced Photocatalytic Degradation of Chlorsulfuron by MoS2/MIL101(Fe) S‐Scheme Heterojunction: A Conversion Mechanism Dominated by Electrons and Long‐Lifetime Reactive Species DOI Open Access
Bingkun Liu, Weijun Tian,

Zhiyang Lu

et al.

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

Published: Jan. 26, 2025

Abstract Altering the generation route of reactive species is a potent means to augment photocatalytic activity. In this study, MoS 2 /MIL‐101(Fe) S‐scheme heterojunction (MF2) prepared using water/solvent thermal method for degradation chlorsulfuron. Driven by internal electric field, local electron density MF2 redistributed, thus enhancing adsorption O . This promoted charge transfer generate e − , •, and H efficient oxidation It confirmed that photogenerated electrons long‐lifetime (• ) played major role. The activity chlorsulfuron much higher than (42.21 times) MIL‐101(Fe) (4.06 times). mechanism verified experimental studies Density Functional Theory simulation calculations. addition, exhibited great potential practical applications. work provided new insights into construction heterojunctions species‐dominated conversion mechanisms.

Language: Английский

Citations

0

Intrinsic linkage of double S-scheme heterojunctions based on Fe@Bi2MoO6@BiOI construction for photodegradation of tetracyclines: Enhanced antibiotic mineralization and detoxification DOI
Xiangyu Wang, Jian‐Gang Wang, Xi Wu

et al.

Environmental Research, Journal Year: 2025, Volume and Issue: unknown, P. 121575 - 121575

Published: April 1, 2025

Language: Английский

Citations

0

TiO2/Ti3C2Tx gel microsphere for efficient photocatalytic degradation of organic pollutant with excellent recycling stability DOI
Dan Wang, Yan Yang,

Yinxiang Chen

et al.

Journal of Water Process Engineering, Journal Year: 2024, Volume and Issue: 66, P. 105995 - 105995

Published: Aug. 23, 2024

Language: Английский

Citations

3

Carbon nanotubes as electron mediators for CNTs/CdS/MoS2 high efficient photodegradation of tetracycline under visible light DOI

Zhen Mou,

Jiali Xu, Tingting Meng

et al.

Journal of Alloys and Compounds, Journal Year: 2023, Volume and Issue: 967, P. 171699 - 171699

Published: Aug. 10, 2023

Language: Английский

Citations

8

Confined iron-based nanomaterials for water decontamination: Fundamentals, applications, and challenges DOI Creative Commons
Wanyi Fu, Ziyao Liu, Zhichao Yang

et al.

Fundamental Research, Journal Year: 2023, Volume and Issue: 5(2), P. 612 - 623

Published: Nov. 10, 2023

Nanotechnology-enabled water treatment is the most attractive approach to realizing advanced purification of contaminated waters that challenge efficacy traditional technologies. Confining nanomaterials inside porous scaffolds or substrates one effective strategies push nano-enabled technologies forward from laboratory field application. As flourishingly reported, confinement effects induce significantly improved decontamination efficiency, such as enhanced adsorption capacity, reaction kinetics, stability, and selectivity. In this review, first we provide an overview general fundamentals nanoconfinement their implications in environmental remediation. Next, review confined Fe-based nanomaterials, different polymorphs iron-oxides, oxyhydroxides, zero-valent iron, single-atom iron representative materials towards applications systems for decontamination. Finally, propose future studies based on missing scientific regarding challenges translating unique promising observations engineering nanomaterials-driven

Language: Английский

Citations

8

A hydrometallurgical process flowsheet for recovering MoO3 from Molybdenite DOI
Hossein Shalchian, Ionela Birloaga,

Motahareh Bagheri Moghaddam

et al.

Hydrometallurgy, Journal Year: 2024, Volume and Issue: 228, P. 106355 - 106355

Published: June 19, 2024

Language: Английский

Citations

2

Flower-structured CoP@MoS2-x S-scheme heterojunction photocatalysts for enhanced hydrogen evolution and selective biomass oxidation DOI
Jia Zhang, Jiliang Ma,

Rui Cui

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 503, P. 158427 - 158427

Published: Dec. 9, 2024

Language: Английский

Citations

2

Mechanical forces hammer Mn into Bi3O4Br under room temperature for efficient photocatalytic degradation DOI Creative Commons

Tiange Wei,

Yi Zhang, Yanan Liu

et al.

Catalysis Communications, Journal Year: 2023, Volume and Issue: 186, P. 106819 - 106819

Published: Dec. 11, 2023

A rapid mechanical ball milling method at room temperature has been proposed for Mn2+ doping. The force generated by the process was able to hammer Mn atom into Bi3O4Br lattice in an efficient and stable manner. Doping with produces a doping level forbidden band. Also, promptly scavenged photogenerated holes, reducing recombination of carriers promoting production numerous active species. As result, doped exhibited enhanced photodegradation performance towards antibiotic tetracycline, which optimal efficiency arrives 81.74%, 1.22 times higher than Bi3O4Br.

Language: Английский

Citations

4