Highly Ordered 2d Honeycomb Polyoxometalate Clusterphene for Efficient Photocatalytic Degradation of Organic Pollutants: Mechanism, Pathways, and Toxicity Evaluation DOI
Xinyi Zhang,

Yiguo Xu,

Rongshuo Guo

и другие.

Опубликована: Янв. 1, 2023

Self-assembled nanomaterials have aroused enormous interest owing to their enhanced physicochemical properties as compared monomers. Herein, two-dimensional Nd-based polyoxometalate clusterphene (Nd-POMCene) with a highly ordered honeycomb structure is synthesized by self-assembly, which demonstrated efficient photocatalytic degradation performance towards organic dyes, such Rhodamine B (RhB), methylene blue, and crystal violet. Especially, RhB can be totally photodegraded Nd-POMCene under the simulated sunlight within 1 h while degraded efficiency of 97.50 % achieved natural light 2 h. As proved density functional theory results, POMCene beneficial for enhancing associated improved separation/transmission photogenerated electron/hole pairs large-scale electron delocalization. The mechanism study provides compelling evidence demonstrate that all holes, hydroxyl radicals, superoxide radicals chemically account photodegradation Nd-POMCene. Finally, it verified there much less toxicity in products RhB.

Язык: Английский

Construction of Nickel Tungsten Oxide Anchored Carbon Nanofibers Modified with Glassy Carbon Electrode for Enhanced Electrochemical Detection of Metronidazole in Urine and Environmental Water Sample DOI Creative Commons

Kiruthika Mariappan,

Subramanian Sakthinathan, Tse‐Wei Chen

и другие.

Journal of The Electrochemical Society, Год журнала: 2024, Номер 171(3), С. 037524 - 037524

Опубликована: Март 8, 2024

Metronidazole (MTD) is an antibiotic that commonly used to treat pathogens and protozoal infections, which have a highly harmful impact on human health domestic animals. Hence, the detection of MTD necessary avoid environmental pollution. The hydrothermal technique has been utilized prepare Nickel Tungsten oxide (NiWO 4 ) nanosheets were anchored with carbon nanofiber (CNF) produce CNF/NiWO nanocomposite, nanocomposite coated glassy electrode (GCE) applied electrochemical MTD. Besides, field emission scanning electron microscope (FESEM), transmission (TEM), energy dispersive X-ray analysis (EIS), Fourier-transform infrared spectroscopy (FTIR), diffraction (XRD), photoelectron spectroscopy. Moreover, impedance cyclic voltammetry studies (CV), differential pulse (DPV) also handled for identification behavior GCE/CNF/NiWO responses. Finally, shows low limit 0.4 μ M, wide linear response range 0.01–650 higher sensitivity 0.274 A M −1 cm −2 , better repeatability, reproducibility, excellent stability. prepared electrodes employed detect in tap water urine samples acceptable recoveries.

Язык: Английский

Процитировано

3

A defect-mediated WO3/FeOOH heterostructure as Z-scheme photocathode for efficient water purification via persulfate activation DOI
Jing Zhou, Xiaoxuan Li, Jie Wang

и другие.

Applied Surface Science, Год журнала: 2025, Номер unknown, С. 162403 - 162403

Опубликована: Янв. 1, 2025

Язык: Английский

Процитировано

0

Z-scheme p-n Co3O4@FeVO4 heterojunction-assisted peroxymonosulfate activation under visible light for boosted degradation of antibiotics: Enhanced intrinsic electric field and broadened visible-light absorption DOI

Jiali Cui,

Chaoneng Ning,

Xiangyu Lu

и другие.

Environmental Research, Год журнала: 2025, Номер unknown, С. 121624 - 121624

Опубликована: Апрель 1, 2025

Язык: Английский

Процитировано

0

Modulation of Catalyst Interfacial Electric Field and Charge Transfer Promotes Nis-Modified Cowo4/Znin2s4 S-Scheme Heterojunction for Efficient Photocatalytic Hydrogen Evolution DOI

Jianmin Dou,

Xiaojie Liu, Mingyu Dou

и другие.

Опубликована: Янв. 1, 2024

The strategic post-synthetic modification of engineered S-scheme heterojunctions represents a potent and manipulable approach to significantly enhance photocatalytic activity. This study details the synthesis innovative photocatalysts via deposition NiS nanoparticles onto CoWO4/ZnIn2S4 (CWO/ZIS-NiS), facilitated by solvothermal photochemical methodologies. Under visible light irradiation, hydrogen production rate CWO/ZIS-NiS was 22.398 mmol·g−1·h−1, which 15 times higher than that ZnIn2S4. XPS, EPR, SPV DFT calculations were used analyze charge transfer path reasons for performance improvement catalyst. construction theS-scheme heterojunction, along with interfacial electric field (IEF) act as reaction center, identified primary reason enhanced work provides guidance design efficient systems using synergistic effect between cocatalysts heterojunctions.

Язык: Английский

Процитировано

2

Detection of Methanol or Hydrogen Based on Modifying the Composition of Sensors of ZIFs on V2CTx Mxene DOI

Yuxiang Qin,

Jinbang Zhang

ACS Applied Nano Materials, Год журнала: 2024, Номер 7(22), С. 26175 - 26186

Опубликована: Ноя. 13, 2024

The safe use of methanol-reforming hydrogen fuel cells requires the accurate identification and detection gases involved in methanol hydrogen. To address this issue, we construct unique gas sensors by uniformly growing zeolitic imidazolate framework (ZIF) (ZIF-67 ZIF-8) particles on surface functionalized V2CTx (F-V2CTx), which are prealkalized then grafted with (3-aminopropyl) triethoxysilane (APTES). In achieved composite F-V2CTx/ZIFs, provides a fast electron transport channel, ZIFs provide adsorption sites for specific gases. Thus, different ZIF modifications, V2CTx/ZIF-based modulated to realize selective or This reveals that F-V2CTx/ZIF-8 F-V2CTx/ZIF-67 exhibit response/recovery (5/4 s 500 ppm H2) (3/12 10 methanol), respectively. sensor exhibits capability detecting sub methanol, theoretical limit 72 ppb, while shows good selectivity at room temperature. mechanisms gas-sensing enhancement gas-selectivity modulation V2CTx/ZIF clarified based heterojunction effect first-principles calculations, work expands application nanocomposites composed field proposes an effective strategy modifications.

Язык: Английский

Процитировано

2

Construction of Z-Scheme ZIF67/NiMoO4 Heterojunction for Enhanced Photocatalytic Degradation of Antibiotic Pollutants DOI Open Access

Kandasamy Sasikumar,

Ramar Rajamanikandan, Heongkyu Ju

и другие.

Materials, Год журнала: 2024, Номер 17(24), С. 6225 - 6225

Опубликована: Дек. 20, 2024

The rational design of heterojunction photocatalysts enabling fast transportation and efficient separation photoexcited charge carriers is the key element in visible light-driven photocatalyst systems. Herein, we develop a unique Z-scheme consisting NiMoO4 microflowers (NMOF) ZIF67, referred to as ZINM (composite), for purpose antibiotic degradation. ZIF67 was produced by solution process, whereas NMOF synthesized via coprecipitation with glycine surfactant. exhibited monoclinic phase highly oriented, interconnected sheet-like morphology. showed better optical transfer characteristics than its constituents, NiMoO4. Consequently, developed superior photocatalytic redox capability; ZINM30 (the composite 30 wt.% loaded) could degrade 91.67% tetracycline 86.23% norfloxacin within 120 min. This enhanced activity attributable reduced bandgap (Egap = 2.01 eV), morphology, high specific surface area (1099.89 m2/g), intimate contact between NiMoO4, which facilitated establishment heterojunction. Active species trapping tests verified that •O2− h+ were primary species, supporting proposed degradation mechanism. work highlights valid ZIF67/NiMoO4 system carrier and, therefore, antibiotics.

Язык: Английский

Процитировано

2

Enhancing Detection of Thermal Runaway Gases: Exploiting Doping and Vacancy Effects in GeS Quantum Dots DOI
Mahmoud A.S. Sakr, Ghada M. Abdelrazek, Nahed H. Teleb

и другие.

Materials Today Communications, Год журнала: 2024, Номер unknown, С. 110519 - 110519

Опубликована: Сен. 1, 2024

Язык: Английский

Процитировано

1

Highly Ordered 2d Honeycomb Polyoxometalate Clusterphene for Efficient Photocatalytic Degradation of Organic Pollutants: Mechanism, Pathways, and Toxicity Evaluation DOI
Xinyi Zhang,

Yiguo Xu,

Rongshuo Guo

и другие.

Опубликована: Янв. 1, 2023

Self-assembled nanomaterials have aroused enormous interest owing to their enhanced physicochemical properties as compared monomers. Herein, two-dimensional Nd-based polyoxometalate clusterphene (Nd-POMCene) with a highly ordered honeycomb structure is synthesized by self-assembly, which demonstrated efficient photocatalytic degradation performance towards organic dyes, such Rhodamine B (RhB), methylene blue, and crystal violet. Especially, RhB can be totally photodegraded Nd-POMCene under the simulated sunlight within 1 h while degraded efficiency of 97.50 % achieved natural light 2 h. As proved density functional theory results, POMCene beneficial for enhancing associated improved separation/transmission photogenerated electron/hole pairs large-scale electron delocalization. The mechanism study provides compelling evidence demonstrate that all holes, hydroxyl radicals, superoxide radicals chemically account photodegradation Nd-POMCene. Finally, it verified there much less toxicity in products RhB.

Язык: Английский

Процитировано

0