New Approaches to the Creation of Highly Efficient Pd-Ag and Pd-Cu Membranes and Modeling of Their Hydrogen Permeability DOI Open Access
Iliya Petriev, Polina Pushankina,

Michail Drobotenko

et al.

International Journal of Molecular Sciences, Journal Year: 2024, Volume and Issue: 25(23), P. 12564 - 12564

Published: Nov. 22, 2024

Thin-film membranes of Pd-Ag and Pd-Cu alloys capable releasing hydrogen in a wide temperature range have been developed. The surface activation the with nanostructured coating made it possible to intensify transport through Pd-containing at low temperatures. This effect was achieved by accelerating limiting processes increasing active area membrane. Surface-activated demonstrated highest values flux over entire range, which reached up 49.4 mmol s

Language: Английский

A novel g-C3N4 based CeO2 loaded ternary CeO2/CoFe2O4@g-C3N4 hetero-junction catalyst for the efficient removal of enrofloxacin from the veterinary wastewater DOI

Qasim Raza,

Shahid Iqbal,

Firdous Bibi

et al.

Journal of Sol-Gel Science and Technology, Journal Year: 2025, Volume and Issue: unknown

Published: March 2, 2025

Language: Английский

Citations

1
Computation‐Guided Regulation of Thiophene‐Based Covalent Organic Frameworks for Boosting Photocatalytic Hydrogen Evolution† DOI Open Access
Xiao Luo, Yuxiang Chen,

Jia‐Tong Lin

et al.

Chinese Journal of Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 21, 2025

Comprehensive Summary Compared to the conventional trial‐and‐error approach, computational prediction is becoming an increasingly prominent approach in discovery of covalent organic frameworks (COFs) with specific applications, yet it has been rarely demonstrated. Herein, we employed density functional theory (DFT) pre‐screen electronic and optical properties thiophene‐based donor‐acceptor (D‐A) pairs simplified from their corresponding COF structures. Theoretical calculation illustrates BMTB‐BTTC highest number thiophene units expected exhibit best photocatalytic performance for hydrogen production. According prediction, four COFs have prepared activities experimentally validated. Interestingly, BMTB‐BTTC‐COF shows production rate 12.37 mmol·g –1 ·h among COFs. Combining experimental results, proven that activity can be fine‐tuned by modulating units. Our study provides a new strategy rational design regulation D‐A enhance through prediction.

Language: Английский

Citations

0
Graphitic Carbon Nitride Nanomaterials-Based Electrochemical Sensing Interfaces for Monitoring Heavy Metal Ions in Aqueous Environments DOI Creative Commons

Cheng Yin,

Yao Liu, Tingting Hu

et al.

Nanomaterials, Journal Year: 2025, Volume and Issue: 15(7), P. 564 - 564

Published: April 7, 2025

The persistent threat of heavy metal ions (e.g., Pb2+, Hg2+, Cd2+) in aqueous environments to human health underscores an urgent need for advanced sensing platforms capable rapid and precise pollutant monitoring. Graphitic carbon nitride (g-C3N4), a metal-free polymeric semiconductor, has emerged as revolutionary material constructing next-generation environmental sensors due its exceptional physicochemical properties, including tunable electronic structure, high chemical/thermal stability, large surface area, unique optical characteristics. This review systematically explores the integration g-C3N4 with functional nanomaterials nanoparticles, oxide nanomaterials, carbonaceous materials, conduction polymer) engineer high-performance interfaces detection. structure-property relationship is critically analyzed, emphasizing how morphology engineering (nanofibers, nanosheets, mesoporous) functionalization strategies enhance sensitivity selectivity. Advanced detection mechanisms are elucidated, electrochemical signal amplification, photoinduced electron transfer processes enabled by g-C3N4’s tailored bandgap active sites. Furthermore, this addresses challenges real-world deployment, such scalable nanomaterial synthesis, matrix interference mitigation, long-term reliable work provides valuable insights advancing g-C3N4-based technologies toward sustainable monitoring intelligent pollution control systems.

Language: Английский

Citations

0
Engineered covalent triazine framework/graphitic carbon nitride heterojunction with synergistically enhanced photocatalytic activity DOI

Hiba Elmansour,

Donghui Wang, Shuanglong Li

et al.

Applied Surface Science, Journal Year: 2025, Volume and Issue: unknown, P. 163326 - 163326

Published: April 1, 2025

Language: Английский

Citations

0
Development of multi-component Co3O4–ZnO hybrid nanomaterials for high-performance lithium-ion batteries: The role of g-C3N4, GO and Ag DOI
Quang Nhat Tran, Chan Ho Park,

Lee Sang-Wha

et al.

Materials Today Chemistry, Journal Year: 2025, Volume and Issue: 46, P. 102721 - 102721

Published: April 24, 2025

Language: Английский

Citations

0
Functionalization of Covalent Organic Frameworks with Thiazole Rings and Hydroxyl Groups for Improved Photocatalytic Water Splitting Performance DOI
Yuxiang Chen, Feng Duan,

Jiejie Zhang

et al.

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

Published: May 6, 2025

Photocatalytic water splitting for hydrogen production holds considerable potential simultaneously addressing fuel and carbon neutrality, although increasing photocatalyst activity enhancing exciton dissociation continue to be very difficult tasks. Covalent organic frameworks (COFs) with predesignable structures customizable functionalities are promising candidates photocatalysis. In this study, we present the design synthesis of these COFs using thiazole rings as linkage units. Three (denoted COF-S-OH-1, COF-S-OH-2, COF-S-OH-3) were prepared based on aldehyde ligands varying numbers hydroxyl groups (2-hydroxybenzene-1,3,5-tricarbaldehyde, 2,4-dihydroxybenzene-1,3,5-tricarbaldehyde, 2,4,6-trihydroxybenzene-1,3,5-tricarbaldehyde, respectively). The results demonstrate that constructed linkages exhibit superior stability conjugation compared those linked solely by imine bonds, ultimately achieving enhanced electronic conductivity. tight interaction between donor acceptor in donor-acceptor (D-A) system facilitates an improved photocatalytic evolution performance. Furthermore, number (electron-donating groups) significantly enhances efficiency resulting COFs.

Language: Английский

Citations

0
Synthesis of Bi/g-C3N4/WO3 ternary composite and its degradation performance for Rhodamine B DOI Open Access

Shengping Rui,

Yong Li, Jing Qu

et al.

Journal of Physics Conference Series, Journal Year: 2025, Volume and Issue: 3008(1), P. 012017 - 012017

Published: May 1, 2025

Abstract Bi/g-C 3 N 4 /WO photocatalyst for degradation of Rhodamine B (RhB) in wastewater was synthesized by urea, sodium tungstate dihydrate, and bismuth nitrate pentahydrate. XRD, SEM, PL, UV-Vis DRS, EIS were used to characterize the morphological, structural, optical, electrical properties materials. The efficiency RhB 96.03% after 30 min irradiation with visible light (70 Ŵ metal halide lamp), it almost completely degraded 40 irradiation. After four cycle experiments, 87%, indicating that had strong ability stability. ·O 2 − plays a major role experiments.

Language: Английский

Citations

0
Fast charge carrier dynamics boosted sustainable green hydrogen production using CdIn2S4/g-C3N4 photocatalyst DOI
Manjiri A. Mahadadalkar, Suresh Gosavi, Minseob Koh

et al.

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 140, P. 246 - 255

Published: May 30, 2025

Language: Английский

Citations

0
In-situ synthesis of g-C3N4 with nitrogen vacancy and cyano group via one-pot method for enhanced photocatalytic activity DOI Creative Commons
Xiang Bi,

Li‐Zhong Wang,

Ds Zhai

et al.

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: June 5, 2025

In-situ synthesis of g-C3N4 containing nitrogen vacancies and cyano group via one-pot method using urea as the precursor. The structural, morphological or electrochemical properties synthesized photocatalysts were characterized by XRD, BET analysis, TEM, FTIR, UV-DRS, PL, XPS EPR. It was found that vacancy successfully introduced into g-C3N4. Compared to pure g-C3N4, (200) crystal plane in XRD showed slight red-shift, surface areas had changed from 27.5 35.7 m2·g-1, which could provide more reaction center active site. TEM confirmed VN-g-C3N4 porous materials, well EPR prove presence group. UV-Vis absorption edge demonstrated briefly PL intensity lifetime carriers declined comparison with Electrochemical test results enhanced charge separation efficiency low recombination rate VN-g-C3N4. photocatalytic activity researched RhB degradation ACT removal under visible light irradiation, on 81%, 1.4-fold high light. contribution species h+ (67.3%) >1O2(63.0%)>•OH (49.4%) >•O2- (20.3%) > e- (20.1%) H2O2(0.2%), exhibited excellent rate, 1.6-fold higher than This study provides an efficient photocatalyst for treatment toxic wastewater.

Language: Английский

Citations

0
New Approaches to the Creation of Highly Efficient Pd-Ag and Pd-Cu Membranes and Modeling of Their Hydrogen Permeability DOI Open Access
Iliya Petriev, Polina Pushankina,

Michail Drobotenko

et al.

International Journal of Molecular Sciences, Journal Year: 2024, Volume and Issue: 25(23), P. 12564 - 12564

Published: Nov. 22, 2024

Thin-film membranes of Pd-Ag and Pd-Cu alloys capable releasing hydrogen in a wide temperature range have been developed. The surface activation the with nanostructured coating made it possible to intensify transport through Pd-containing at low temperatures. This effect was achieved by accelerating limiting processes increasing active area membrane. Surface-activated demonstrated highest values flux over entire range, which reached up 49.4 mmol s

Language: Английский

Citations

0