Oxygen Vacancy Sites Enable Efficient Photocatalytic Oxidation of Nitric Oxide: The Role of W/Mo Valence Transition in Bi2W(Mo)O6‐x DOI
Chaoyong Yang, Junlei Zhang,

Guojia Yu

et al.

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 5, 2024

Abstract Oxygen vacancy (O v ) sites play a critical role in the activation and deep oxidation of nitric oxide (NO). However, controlling concentration type O remains significant challenge. In this study, Bi 2 W(Mo)O 6‐x is investigated as model system demonstrates that increasing substantially enhances efficiency air NO removal. Increasing concentrations WO MoO improves removal ≈12‐ 11‐fold, respectively, compared to their low‐O counterparts. This enhancement attributed improved adsorption NO/O molecules, better separation transfer photogenerated carriers, increased visible light absorption. Notably, highly stable over ten recycling tests for continuous photooxidation, while shows 43.5% decrease after runs. sustained performance s without changes metal ion valence, unlike , where instability arises from reduction Mo 6+ 4+ . situ DRIFTS reveals possible pathways photooxidation nitrate (NO 3 − ). study provides valuable insights into designing high‐performance, durable catalysts by effectively type, paving way efficient photocatalytic purification technologies.

Language: Английский

Construction of Bi2Sn2O7/Cu2O Z-type photocatalyst with enhanced tetracycline removal under visible light DOI
Duan Xue-mei,

Chengdeng Yang,

Huarui Han

et al.

Journal of Molecular Liquids, Journal Year: 2024, Volume and Issue: 403, P. 124693 - 124693

Published: April 8, 2024

Language: Английский

Citations

9
Graphitic carbon nitride sheets sandwiched metal oxides: A novel platform for S-Scheme heterojunction generation for efficient photodegradation of volatile organics DOI

Nandakumar Velu,

Chandravadhana Arumugam,

Vaithinathan Karthikeyan

et al.

Colloids and Surfaces A Physicochemical and Engineering Aspects, Journal Year: 2024, Volume and Issue: 698, P. 134515 - 134515

Published: June 15, 2024

Language: Английский

Citations

4
Advanced pyro-/piezoelectric catalytic disinfection of water via porous spontaneously polarized ceramic with strong local electric field induced by micro-nano bubbles DOI
Wuxiang Zhang, Jie Xiong,

Xiangxuan Lin

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 499, P. 155958 - 155958

Published: Sept. 19, 2024

Language: Английский

Citations

4
Mechanism, Performance, and Application of g-C3N5-Coupled TiO2 as an S-Scheme Heterojunction Photocatalyst for the Abatement of Gaseous Benzene DOI
Hubdar Ali Maitlo,

Sherif A. Younis,

Ki‐Hyun Kim

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 12, 2025

In this research, S-scheme heterojunction photocatalysts are prepared through the hybridization of nitrogen-rich g-C3N5 with TiO2 (coded as TCN5-(x): x weight ratio TiO2:g-C3N5). The photocatalytic potential TCN5-(x) is evaluated against benzene (1–5 ppm) across varying humidity levels using a dynamic flow packed-bed reactor. Among composites, TCN5-(10) exhibits highest synergy between and at "x" 10%, showing superior best degradation performance (e.g., 93.9% removal efficiency, specific clean air delivery rate 1126.9 L g–1 h–1, kinetic reaction 46.1 nmol mg–1 min–1, quantum yield 6.0 × 10–4 molec. photon–1, space-time 1.2 photon–1 mg–1). formation an built-in internal electric field supported by both theoretical (through density functional theory calculations) photoelectrochemical bases improvement in band electrochemistry along surface characteristics reactive sites charge migrations interface)). results situ DRIFTS analysis confirm that oxidation molecules accompanied many intermediates phenolate, maleate, acetate, methylene). outcomes work will help us pursue development state-of-the-art system for quality management.

Language: Английский

Citations

0
Boosting photocatalytic reduction over perylene-C3N5 driven by constructing donor-acceptor structure DOI
Zheng Liu, Mengjie Li, Jie Wu

et al.

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 178730 - 178730

Published: Jan. 1, 2025

Language: Английский

Citations

0
Reinforced ROS Generation and Anti‐Photocorrosion for Boosted Photooxidation Disinfection by IEF‐Enhanced Type II Charge Carrier Dynamics DOI Creative Commons
Junlei Zhang,

Guojia Yu,

Chaoyong Yang

et al.

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

Published: March 11, 2025

ABSTRACT The internal electric field (IEF) is key in speeding up the separation and transfer of photogenerated carriers, which boosts production reactive oxygen species (ROS). In this study, we present a novel silver iodide/N‐rich carbon nitride (AgI/C 3 N 5 ) heterojunction catalyst with an IEF directed from AgI to C . We confirmed using density functional theory (DFT) calculations various characterization methods. This induces reinforces Type II pathway for carrier transfer, significantly increasing ROS, particularly singlet ( 1 O 2 ). As result, AgI/C catalysts achieve 10.1 times disinfection efficiency 5.6 that AgI, under one‐min reaction time, 10 7 CFU/mL E. coli , visible light, room temperature. It also outperforms most other nitride‐based photocatalysts. Notably, holes (h + selectively oxidize superoxide radicals (∙O − due favorable energy alignment, minimizing reduction effects enhancing photocorrosion resistance, as demonstrated five consecutive cycling experiments. addition, actual water tests its practical application potential. work highlights catalyst's promise efficient agent sheds light on photocatalytic mechanism.

Language: Английский

Citations

0
Photodegradation of Malachite green using 2D g-C\(_{3}\)N\(_{5}\) nanosheet: A promising metal free catalyst DOI

Smita Biswal,

Swayam Aryam Behera,

Asima Subhadarshini

et al.

Journal of Metals Materials and Minerals, Journal Year: 2025, Volume and Issue: 35(2), P. e2279 - e2279

Published: April 28, 2025

Environmental issues have become more serious these days due to the growth of modern industries. The paper and textile industries, in particular, were heavily dependent on printing discharge dye, which constantly leaked into water ecology constituted a risk public health. Organic wastewater treatment remediation for its associated risks received lot attention lately. This work explored potential g-C3N5 nanostructure as novel photocatalyst malachite green degradation aqueous solution while exposed visible light. nanocomposite was fabricated through an ultrasonicate-assisted technique. A number analysis techniques, such CHNS, XRD, FTIR, UV-DRS, SEM, Electrical, XPS employed verify successful fabrication photocatalyst. At pH 6.5, catalyst dose 0.06 g∙L‒1, with concentration 20 mg∙L‒1, reaction period 90 min, efficiency had been found be 88%. produced hydroxyl radicals (OH•) is considered major scavenger green. above method suggested easy, environmentally friendly practical approach produce excellent photocatalytic 2D nanosheet environmental cleanup.

Language: Английский

Citations

0
In situ construction of Flowerlike bismuth oxide (BiO2-x)/N-rich carbon nitride (C3N5) S-scheme heterojunctions with enhanced structural defects for the efficient photocatalytic removal of tetracycline antibiotic and RhB DOI
Huanli Wang, Yuanfei Li, Xiaodong Liu

et al.

Journal of Water Process Engineering, Journal Year: 2024, Volume and Issue: 67, P. 106221 - 106221

Published: Oct. 1, 2024

Language: Английский

Citations

3
Oxygen Vacancy Sites Enable Efficient Photocatalytic Oxidation of Nitric Oxide: The Role of W/Mo Valence Transition in Bi2W(Mo)O6‐x DOI
Chaoyong Yang, Junlei Zhang,

Guojia Yu

et al.

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 5, 2024

Abstract Oxygen vacancy (O v ) sites play a critical role in the activation and deep oxidation of nitric oxide (NO). However, controlling concentration type O remains significant challenge. In this study, Bi 2 W(Mo)O 6‐x is investigated as model system demonstrates that increasing substantially enhances efficiency air NO removal. Increasing concentrations WO MoO improves removal ≈12‐ 11‐fold, respectively, compared to their low‐O counterparts. This enhancement attributed improved adsorption NO/O molecules, better separation transfer photogenerated carriers, increased visible light absorption. Notably, highly stable over ten recycling tests for continuous photooxidation, while shows 43.5% decrease after runs. sustained performance s without changes metal ion valence, unlike , where instability arises from reduction Mo 6+ 4+ . situ DRIFTS reveals possible pathways photooxidation nitrate (NO 3 − ). study provides valuable insights into designing high‐performance, durable catalysts by effectively type, paving way efficient photocatalytic purification technologies.

Language: Английский

Citations

2