Waltzing with the Versatile Platform of Graphene to Synthesize Composite Photocatalysts

Zhang, Nan; Yang, Min‐Quan; Liu, Siqi; Sun, Yugang; Xu, Yi–Jun

doi:10.1021/acs.chemrev.5b00267

Cited by 1,048 publications

(571 citation statements)

References 444 publications

(1,542 reference statements)

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“…Thus, this distinctly underlines the fundamental and technological importance of surface charge modification between two dissimilar 2D nanomaterials for robust interfacial interactions in unraveling the charge dynamics for enhanced photocatalysis. Benefiting from the predominant role of graphene as the electron reservoir (Zhang et al, , 2015bTan et al, 2015b;Mateo et al, 2016;Varadwaj and Nyamori, 2016), the photoinduced electrons were transferred from pCN to rGO across the interface to overwhelmingly suppress the charge recombination rate ( Figure 5E). All in all, the smart 2D/2D interface engineering design of graphene/g-C3N4 developed thus far is considered as an auspicious means, which could be eminently extended to heteroatom-doping graphenehybridized g-C3N4 for targeting superior photochemistry applications for real-life applications.…”

Section: Hybridization With 2d Graphenementioning

confidence: 99%

2D/2D Graphitic Carbon Nitride (g-C3N4) Heterojunction Nanocomposites for Photocatalysis: Why Does Face-to-Face Interface Matter?

Ong

2017

Front. Mater.

211

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In recent years, two-dimensional (2D) graphitic carbon nitride (g-C3N4) has elicited interdisciplinary research fascination among the scientific communities due to its attractive properties such as appropriate band structures, visible-light absorption, and high chemical and thermal stability. At present, research aiming at engineering 2D g-C3N4 photocatalysts at an atomic and molecular level in conquering the global energy demand and environmental pollution has been thriving. In this review, the cutting-edge research progress on the 2D/2D g-C3N4-based hybrid nanoarchitectures will be systematically highlighted with a specific emphasis on a multitude of photocatalytic applications, not only in waste degradation for pollution alleviation, but also in renewable energy production [e.g., water splitting and carbon dioxide (CO2) reduction]. By reviewing the substantial developments on this hot research platform, it is envisioned that the review will shed light and pave a new prospect for constructing high photocatalytic performance of 2D/2D g-C3N4-based system, which could also be extended to other related energy fields, namely solar cells, supercapacitors, and electrocatalysis.

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Section: Hybridization With 2d Graphenementioning

confidence: 99%

2D/2D Graphitic Carbon Nitride (g-C3N4) Heterojunction Nanocomposites for Photocatalysis: Why Does Face-to-Face Interface Matter?

Ong

2017

Front. Mater.

211

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“…This, in turn, results in the high versatility of AC/silver composites, which is often regarded to be due to the presence of multiple Ag-O interactions. Oxygen molecules can be physically and chemically adsorbed on the surface of AC/silver composites, which in general favors deep oxidation reactions in the form of lattice oxygen, located in bulk, and is usually treated as inactive and in intermediate species, which are responsible for the selective oxidation reactions [97,98]. AC/silver composites release silver ions into the pathogenic environment for it to be effective.…”

Section: Activated Carbon/silver (Ag) Hybridmentioning

confidence: 99%

“…To date, most of the AC loaded with silver is prepared via impregnation with AgNO 3 , which involves soaking AC in a solution of AgNO 3 , followed by reduction using agents such as formaldehyde and/ or hydrazine, or simply by heating. However, AC/silver composites prepared through this method is associated with uneven distribution of silver onto AC surface [97]. In terms of applications, the silver particle of the composites decreases remarkably as the contact time increases.…”

Section: Activated Carbon/silver (Ag) Hybridmentioning

confidence: 99%

Effect of hybridization on the value-added activated carbon materials

Julkapli

2016

Int J Ind Chem

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This paper provides a concise review of recent advances in activated carbon (AC) and its corresponding modified material. Topics covered in this work include the synthesis and characterization of AC as the feedstock materials, as well as the properties and applications of the subsequent hybrid material for different industries. Numerous research studies have since reported remarkable physical, chemical, thermal, conductivity, porosity, and mechanical (stiffness and strength) properties of AC in different types of multiple material matrices, including polymers, metals, and ceramics. The incorporation of AC particles into material matrices may result in the formation of an entire new class of advanced materials, due to the resulting strong interfacial bonds of the hybrid components. Although this requirement is no different from those that offer conventional hybrid materials, the scale of the reinforcement and filled phase of the AC has changed from micrometers to nanometers. This create opportunities to increase the potential applications of AC hybrid materials of the development of fundamentally unique new materials for in chemical conversion, environmental, and fuel storage applications.

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“…These include mechanical exfoliation of natural graphite [1], chemical vapor deposition [15], thermal exfoliation of graphite oxide [16,17], epitaxial growth [18], arc discharge [19,20], unzipping CNTs [21], solution based chemical reduction of graphene oxide (GO) [22], etc. [23].…”

Section: Introductionmentioning

confidence: 99%

A facile green reduction of graphene oxide using Annona squamosa leaf extract

Byram¹,

Mosali²,

Mullamuri³

et al. 2017

Carbon letters

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A highly facile and eco-friendly green synthesis of Annona squamosa (custard apple) leaf extract reduced graphene oxide (CRG) nanosheets was achieved by the reduction of graphene oxide (GO). The as-prepared CRG was characterized with X-ray diffraction (XRD), transmission electron microscope (TEM), Fourier-transform infrared spectroscopy (FT-IR), ultraviolet-visible (UV-Vis), X-ray photoelectron spectroscopy (XPS) and Raman spectroscopic techniques. Removal of oxygen containing moieties from the GO was confirmed by UV-Vis, FT-IR and XPS spectroscopic data. The XRD and Raman data further confirmed the formation of the CRG. TEM images showed the sheet structure of the synthesized CRG. These results show that the phytochemicals present in custard apple leaf extract act as excellent reducing agents. The CRG showed good dispersion in water.

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Waltzing with the Versatile Platform of Graphene to Synthesize Composite Photocatalysts

Cited by 1,048 publications

References 444 publications

2D/2D Graphitic Carbon Nitride (g-C3N4) Heterojunction Nanocomposites for Photocatalysis: Why Does Face-to-Face Interface Matter?

2D/2D Graphitic Carbon Nitride (g-C3N4) Heterojunction Nanocomposites for Photocatalysis: Why Does Face-to-Face Interface Matter?

Effect of hybridization on the value-added activated carbon materials

A facile green reduction of graphene oxide using Annona squamosa leaf extract

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