Visible light-activated self-powered photoelectrochemical aptasensor for ultrasensitive chloramphenicol detection based on DFT-proved Z-scheme Ag2CrO4/g-C3N4/graphene oxide

Peng, Bo; Lu, Yue; Luo, Jun; Zhang, Ziling; Zhu, Xu; Tang, Lin; Wang, Lingling; Deng, Yaocheng; Ouyang, Xilian; Tan, Jisui; Wang, Jiajia

doi:10.1016/j.jhazmat.2020.123395

Cited by 65 publications

(23 citation statements)

References 63 publications

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“…At that point, the e − (s) amassed in g-C 3 N 4 drifted to the GO, further extricating e − -hole pairs. Also, the planar average CD difference conformed to the CGA heterojunction, and substantial deviations in the CD variance at the composite interface were observed due to the IEF between Ag 2 CrO 4 , GO, and g-C 3 N 4 [78]. These researchers also reported that the value of ∆ρ was an indication of e − build-up or depletion, as the direction of IEF could be identified by calculating the difference observed.…”

Section: Effects Of the Electric Field Upon The Properties Of Graphen...mentioning

confidence: 80%

“…These researchers also reported that the value of ∆ρ was an indication of e − build-up or depletion, as the direction of IEF could be identified by calculating the difference observed. They also established that the e − (s) were inclined to transcend from Ag 2 CrO 4 to g-C 3 N 4 about the CA interface, even though they were apt to move from g-C 3 N 4 to GO at the interface between CG [78]. Based on their conclusion that this kind of constant secondary e − transmission mechanism base Z-scheme heterostructure will significantly enhance e − -hole pairs separation ability, resulting in heightening of the PEC property performance, it is envisaged that a similar phenomenon will occur in other GOmetal oxide composites.…”

Section: Effects Of the Electric Field Upon The Properties Of Graphen...mentioning

confidence: 97%

“…The influence of the EF on the resultant properties of ZnO@graphene nanocomposites with the help of DFT has been reported by Geng et al [53]. Aimed at validating the existence of inter-material interacting charge transfer between Ag 2 CrO 4 , GO, as well as g-C3N4, 3D charge density difference graphical plotted for the interfaced materials entities via CGA heterostructure was utilized [78]. These authors detected that the e − (s) are firstly amassed within the g-C 3 N 4 , whereas they are depleted in the Ag 2 CrO 4 , signifying that the interface developed an IEF (internal electric field).…”

Section: Effects Of the Electric Field Upon The Properties Of Graphen...mentioning

confidence: 99%

“…If this phenomenon can be substantiated, then such composites are envisaged to be potential candidates for EMI shielding and other advanced applications. In combination with DFT results, the probable charge transfer course of the CGA altered electrode using irradiation was established [78]. The resultant IEF energies photogenerates e − (s) within the conduction band (CB) of Ag 2 CrO 4 flow to the valence band (VB) of g-C 3 N 4 .…”

Section: Effects Of the Electric Field Upon The Properties Of Graphen...mentioning

confidence: 99%

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Prospect of DFT Utilization in Polymer-Graphene Composites for Electromagnetic Interference Shielding Application: A Review

Orasugh

Ray

2022

Polymers

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The improvement in current materials science has prompted a developing need to capture the peculiarities that determine the properties of materials and how they are processed on an atomistic level. Quantum mechanics laws control the interface among atoms and electrons; thus, exact and proficient techniques for fixing the major quantum-mechanical conditions for complex many-particle, many-electron frameworks should be created. Density functional theory (DFT) marks an unequivocal advance in these endeavours. DFT has had a rapid influence on quintessential and industrial research during the last decade. The DFT system describes periodic structural systems of 2D or 3D electronics with the utilization of Bloch’s theorem in the direction of Kohn–Sham wavefunctions for the significant facilitation of these schemes. This article introduces and discusses the infinite systems modelling approach required for graphene-based polymer composites or their hybrids. Aiming to understand electronic structure computations as per physics, the impressions of band structures and atomic structure envisioned along with orbital predicted density states are beneficial. Convergence facets coupled with the basic functions number and the k-points number are necessary to explain for every physicochemical characteristic in these materials. Proper utilization of DFT in graphene-based polymer composites for materials in EMI SE presents the potential of taking this niche to unprecedented heights within the next decades. The application of this system in graphene-based composites by researchers, along with their performance, is reviewed.

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Section: Effects Of the Electric Field Upon The Properties Of Graphen...mentioning

confidence: 80%

Section: Effects Of the Electric Field Upon The Properties Of Graphen...mentioning

confidence: 97%

Section: Effects Of the Electric Field Upon The Properties Of Graphen...mentioning

confidence: 99%

Section: Effects Of the Electric Field Upon The Properties Of Graphen...mentioning

confidence: 99%

See 2 more Smart Citations

Prospect of DFT Utilization in Polymer-Graphene Composites for Electromagnetic Interference Shielding Application: A Review

Orasugh

Ray

2022

Polymers

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“…Conventionally, carbon nanomaterials (carbon nanotubes (CNTs), graphene and its derivatives), metal/metal oxide nanomaterials, and their nanocomposites have proven effective for promoting sensing performances towards CAP detection [24][25][26]. Using CNTs and metal nanoparticles (NPs) hybridized nanocomposites as the electrode is a common approach.…”

Section: Introductionmentioning

confidence: 99%

Intertwined Carbon Nanotubes and Ag Nanowires Constructed by Simple Solution Blending as Sensitive and Stable Chloramphenicol Sensors

Zhu

et al. 2021

Sensors

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Chloramphenicol (CAP) is a harmful compound associated with human hematopathy and neuritis, which was widely used as a broad-spectrum antibacterial agent in agriculture and aquaculture. Therefore, it is significant to detect CAP in aquatic environments. In this work, carbon nanotubes/silver nanowires (CNTs/AgNWs) composite electrodes were fabricated as the CAP sensor. Distinguished from in situ growing or chemical bonding noble metal nanomaterials on carbon, this CNTs/AgNWs composite was formed by simple solution blending. It was demonstrated that CNTs and AgNWs both contributed to the redox reaction of CAP in dynamics, and AgNWs was beneficial in thermodynamics as well. The proposed electrochemical sensor displayed a low detection limit of up to 0.08 μM and broad linear range of 0.1–100 μM for CAP. In addition, the CNTs/AgNWs electrodes exhibited good performance characteristics of repeatability and reproducibility, and proved suitable for CAP analysis in real water samples.

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Advanced Functional Electroactive and Photoactive Materials for Monitoring the Environmental Pollutants

Yan

Kannan

Doonyapisut

et al. 2020

Adv Funct Materials

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Functional materials with attractive electronic and photoelectronic properties show great promise in various fields. In recent decades, tremendous research efforts have been devoted to the design of photoactive and electroactive materials for qualitative and quantitative analysis of environmental pollutants. This review gives a concise overview on the fundamentals and recent research progress of functional material‐based electrochemical and photoelectrochemical technology for environmental pollutant monitoring. The rational design of functional photoactive and electroactive materials with promoted electrochemical properties and basic signaling strategies for electrochemical and photoelectrochemical sensors are presented. Based on these insights, very recent achievements for electrochemical and photoelectrochemical environmental pollutant sensors are summarized from the viewpoint of various functional materials. At last, critical challenges and future research perspectives in this field are proposed and discussed to provide a backdrop for future research.

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Visible light-activated self-powered photoelectrochemical aptasensor for ultrasensitive chloramphenicol detection based on DFT-proved Z-scheme Ag2CrO4/g-C3N4/graphene oxide

Cited by 65 publications

References 63 publications

Prospect of DFT Utilization in Polymer-Graphene Composites for Electromagnetic Interference Shielding Application: A Review

Prospect of DFT Utilization in Polymer-Graphene Composites for Electromagnetic Interference Shielding Application: A Review

Intertwined Carbon Nanotubes and Ag Nanowires Constructed by Simple Solution Blending as Sensitive and Stable Chloramphenicol Sensors

Advanced Functional Electroactive and Photoactive Materials for Monitoring the Environmental Pollutants

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