Construction of Cu2Y2O5/g-C3N4 Novel Composite for the Sensitive and Selective Trace-Level Electrochemical Detection of Sulfamethazine in Food and Water Samples DOI Creative Commons

R. Surya,

Subramanian Sakthinathan,

Ganesh Abinaya Meenakshi

et al.

Sensors, Journal Year: 2024, Volume and Issue: 24(17), P. 5844 - 5844

Published: Sept. 9, 2024

The most frequently used sulfonamide is sulfamethazine (SMZ) because it often found in foods made from livestock, which hazardous for individuals. Here, we have developed an easy, quick, selective, and sensitive analytical technique to efficiently detect SMZ. Recently, transition metal oxides attracted many researchers their excellent performance as a promising sensor SMZ analysis of superior redox activity, electrocatalytic electroactive sites, electron transfer properties. Further, Cu-based resilient electrical conductivity; however, boost extreme extent, composite including two-dimensional (2D) graphitic carbon nitride (g-C3N4) nanosheets needs be constructed ready (denoted g-C3N4/Cu2Y2O5). Moreover, several techniques, X-ray diffraction analysis, scanning microscopy energy-dispersive spectroscopy, Fourier transform infrared Raman spectroscopy were employed analyze the composites. electrochemical measurements revealed that g-C3N4/Cu2Y2O5 composites exhibit great activity. Nevertheless, achieved outstanding repeatability reproducibility alongside low limit detection (LOD) 0.23 µM, long linear range 2 276 electrode sensitivity 8.86 µA µM−1 cm−2. Finally, proposed GCE/g-C3N4/Cu2Y2O5 proved highly effective food samples, with acceptable recoveries. has been successfully applied water samples.

Language: Английский

Synthesis and modification strategies of g-C3N4 nanosheets for photocatalytic applications DOI Creative Commons
Long Chen,

Michael A. Maigbay,

Miao Li

et al.

Advanced Powder Materials, Journal Year: 2023, Volume and Issue: 3(1), P. 100150 - 100150

Published: July 5, 2023

Graphitic carbon nitride nanosheets (CNNs) become the most promising member in family benefitted from their two-dimensional structural features. Recently, great endeavors have been made synthesis and modification of CNNs to improve photocatalytic properties, many exciting progresses gained. In order elucidate fundamentals based catalysts provide insights into rational design photocatalysis system, we describe recent progress preparation strategies applications this review. Firstly, physicochemical properties are briefly introduced. Secondly, approaches reviewed, including top-down stripping (thermal, gas, liquid, composite stripping) bottom-up precursor molecules (solvothermal, template, supramolecular self-assembly method). Subsequently, on years discussed, crystal structure design, doping, surface functionalization, constructing 2D heterojunction, anchoring single-atom. Then multifunctional g-C3N4 nanosheet materials H2 evolution, O2 overall water splitting, H2O2 production, CO2 reduction, N2 fixation, pollutant removal, organic synthesis, sensing highlighted. Finally, opportunities challenges for development high-performance systems also promising.

Language: Английский

Citations

139

Interface Engineering in 2D/2D Heterogeneous Photocatalysts DOI
Huijun Yu, Meng Dai, Jing Zhang

et al.

Small, Journal Year: 2022, Volume and Issue: 19(5)

Published: Dec. 7, 2022

Assembling different 2D nanomaterials into heterostructures with strong interfacial interactions presents a promising approach for novel artificial photocatalytic materials. Chemically implementing the nanomaterials' construction/stacking modes to regulate interfaces can extend their functionalities and achieve good performance. Herein, based on fundamental principles photochemical processes, multiple construction (e.g., face-to-face, edge-to-face, interface-to-face, edge-to-edge) are overviewed systematically emphasis relationships between characteristics point, linear, planar), synthetic strategies in situ growth, ex assembly), enhanced applications precise regulation. Meanwhile, recent efforts enhancing performances of 2D/2D summarized from critical factors visible light absorption, accelerating charge transfer/separation, introducing active sites. Notably, crucial roles surface defects, cocatalysts, modification performance optimization also discussed synergistic effect engineering heterogeneous interfaces. Finally, perspectives challenges proposed emphasize future opportunities expanding photocatalysis.

Language: Английский

Citations

90

Recent advances of photocatalytic coupling technologies for wastewater treatment DOI
Ziye Zheng,

Shuang Tian,

Yuxiao Feng

et al.

CHINESE JOURNAL OF CATALYSIS (CHINESE VERSION), Journal Year: 2023, Volume and Issue: 54, P. 88 - 136

Published: Nov. 1, 2023

Language: Английский

Citations

64

Efficient Exciton Dissociation in Ionically Interacted Methyl Viologen and Polymeric Carbon Nitride for Superior H2O2 Photoproduction DOI
Yubao Zhao, Jingyu Gao, Zhenchun Yang

et al.

ACS Catalysis, Journal Year: 2023, Volume and Issue: 13(5), P. 2790 - 2801

Published: Feb. 9, 2023

Restricted by the limited exciton diffusion and unproductive recombination, efficiency of photon-to-chemical conversion on polymeric carbon nitride (CN) photocatalyst is generally unsatisfactory. The rational design an efficient challenging due to ambiguous understanding structure–property–photocatalytic activity relationship. study herein demonstrates unprecedently for photoproduction hydrogen peroxide (H2O2), as well mechanistic rationale behind remarkable catalytic performance. Anchoring cationic methyl viologen (MV) CN with anionic moiety generates ionic link elicits internal local electric field in organic framework, which significantly enhances dissociation. Femtosecond transient absorption spectroscopy analysis that MV surface complex-induced favors generation long-lived trapped electron, especially under high photon-flux irradiation >450 mW cm–2. CN–MV thus exhibits superior photocatalytic performance H2O2 production, example, 114.2 mM a 53 min reaction continuous microbatch photoreactor. apparent quantum yield reaches value 51.1%. present highlights significant impact complex electronic energy landscape toward enhanced dissociation hence improved various applications.

Language: Английский

Citations

44

Multi‐Mode/Signal Biosensors: Electrochemical Integrated Sensing Techniques DOI
Qingzhi Han, Haimei Wang, Haimei Wang

et al.

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

Published: May 14, 2024

Abstract Electrochemical (EC) analysis has emerged as a high‐sensitivity, reliable, cost‐effective, and rapidly evolving technique that garnered significant attention across diverse domains. Furthermore, EC‐based techniques hold great potential for miniaturization integration. The integration of EC with mode/signal (such light, magnetic, thermal signals, etc.) provides unique opportunities biosensors to acquire more information through single sensing platform. By coupling multiple signals or processing them logically, the detection accuracy can be further improved, probability false positives negatives minimized. In this review, thorough multi‐ sensors in field is conducted, along their various (e.g., fluorescence, photothermal, colorimetry, microfluidic, etc.). aim delve into latest advances, applications, well challenges multi‐mode/signal biosensors, where utilization modalities helps enhance accuracy, sensitivity, selectivity. This review new insight synergistic effects integrating other techniques, aiming shed light on near‐future developments EC‐integrated biosensors.

Language: Английский

Citations

32

Tailored carbon materials (TCM) for enhancing photocatalytic degradation of polyaromatic hydrocarbons DOI Creative Commons
Avtar Singh, Jaspreet S. Dhau, Rajeev Kumar

et al.

Progress in Materials Science, Journal Year: 2024, Volume and Issue: 144, P. 101289 - 101289

Published: March 28, 2024

This comprehensive review explores the potential of tailored carbon materials (TCM) for efficient photocatalytic degradation polyaromatic hydrocarbons (PAHs), which are persistent and toxic organic pollutants posing significant environmental challenges. The unique structure properties TCM including graphene nanotubes to activated dots, have projected them as next-generation technological innovation. A careful critical discussion state-of-the-art research sheds light on their effectiveness in catalyzing breakdown PAHs, projects suitable management environment. Beyond this viewpoint, article expands scope 1) biomedical healthcare, 2) energy storage conversion, 3) advanced electronics. challenges, opportunities, future perspectives related role applications, inspiring further research, innovation photo-induced techniques also carefully discussed article. focused serves a valuable resource researchers industrialists interested harnessing capabilities carbon-based sustainable PAHs other pollutants. It addresses pressing need effective remediation pollution control strategies.

Language: Английский

Citations

31

Recent advances in designable nanomaterial-based electrochemical sensors for environmental heavy-metal detection DOI
Hao Zhang, Lijun Li, Chunqiong Wang

et al.

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

Published: Jan. 1, 2025

Schematic of functional materials for electrochemical sensors, showcasing MWCNTs, CNFs, GO, Pd, Pt, Ni, Fe, Co, COFs, MOFs detecting heavy metal ions (Pb, Cd, Hg, Cu, Cr, As) in complex environments with high sensitivity and reliability.

Language: Английский

Citations

2

A Comprehensive Review on Graphitic Carbon Nitride for Carbon Dioxide Photoreduction DOI
Javid Khan, Yanyan Sun, Lei Han

et al.

Small Methods, Journal Year: 2022, Volume and Issue: 6(12)

Published: Nov. 6, 2022

Inspired by natural photosynthesis, harnessing the wide range of solar energy and utilizing appropriate semiconductor-based catalysts to convert carbon dioxide into beneficial species, for example, CO, CH4 , HCOOH, CH3 COH have been shown be a sustainable more environmentally friendly approach. Graphitic nitride (g-C3 N4 ) has regarded as highly effective photocatalyst CO2 reduction reaction, owing its cost-effectiveness, high thermal chemical stability, visible light absorption capability, low toxicity. However, weaker electrical conductivity, fast recombination rate, smaller window, reduced surface area make this catalytic material unsuitable commercial photocatalytic applications. Therefore, certain procedures, including elemental doping, structural modulation, functional group adjustment g-C3 addition metal complex motif, others, may used improve activity towards reduction. This review investigated scientific community's perspectives on synthetic pathways optimization approaches increase selectivity efficiency -based hybrid structures, well their benefits drawbacks Finally, concludes comparative discussion presents promising picture future scope improvements.

Language: Английский

Citations

46

A label-free PEC aptasensor platform based on g-C3N4/BiVO4 heterojunction for tetracycline detection in food analysis DOI

Zhengzheng Zhao,

Zhifang Wu, Xueling Lin

et al.

Food Chemistry, Journal Year: 2022, Volume and Issue: 402, P. 134258 - 134258

Published: Sept. 15, 2022

Language: Английский

Citations

44

Graphene-like graphitic carbon nitride (g-C3N4) as a semiconductor photocatalyst: Properties, classification, and defects engineering approaches DOI
Tahir Muhmood, Imtiaz Ahmad, Zeeshan Haider

et al.

Materials Today Sustainability, Journal Year: 2023, Volume and Issue: 25, P. 100633 - 100633

Published: Dec. 12, 2023

Language: Английский

Citations

41