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Journal ArticleDOI

Graphene in Photocatalysis: A Review

TLDR
Through reviewing the significant advances on this topic, it may provide new opportunities for designing highly efficient 2D graphene-based photocatalysts for various applications in photocatalysis and other fields, such as solar cells, thermal catalysis, separation, and purification.
Abstract
In recent years, heterogeneous photocatalysis has received much research interest because of its powerful potential applications in tackling many important energy and environmental challenges at a global level in an economically sustainable manner. Due to their unique optical, electrical, and physicochemical properties, various 2D graphene nanosheets-supported semiconductor composite photocatalysts have been widely constructed and applied in different photocatalytic fields. In this review, fundamental mechanisms of heterogeneous photocatalysis, including thermodynamic and kinetics requirements, are first systematically summarized. Then, the photocatalysis-related properties of graphene and its derivatives, and design rules and synthesis methods of graphene-based composites are highlighted. Importantly, different design strategies, including doping and sensitization of semiconductors by graphene, improving electrical conductivity of graphene, increasing eloectrocatalytic active sites on graphene, strengthening interface coupling between semiconductors and graphene, fabricating micro/nano architectures, constructing multi-junction nanocomposites, enhancing photostability of semiconductors, and utilizing the synergistic effect of various modification strategies, are thoroughly summarized. The important applications including photocatalytic pollutant degradation, H2 production, and CO2 reduction are also addressed. Through reviewing the significant advances on this topic, it may provide new opportunities for designing highly efficient 2D graphene-based photocatalysts for various applications in photocatalysis and other fields, such as solar cells, thermal catalysis, separation, and purification.

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Graphene in Photocatalysis: A Review
By: Li, X (Li, Xin)
[ 1,4 ]
; Yu, JG (Yu, Jiaguo)
[ 2,3 ]
; Wageh, S (Wageh, S.)
[ 3 ]
; Al-Ghamdi, AA (Al-
Ghamdi, Ahmed A.)
[ 3 ]
; Xie, J (Xie, Jun)
[ 4 ]
View ResearcherID and ORCID
SMALL
Volume: 12 Issue: 48 Pages: 6640-6696
DOI: 10.1002/smll.201600382
Published: DEC 28 2016
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Abstract
In recent years, heterogeneous photocatalysis has received much research interest because of its
powerful potential applications in tackling many important energy and environmental challenges at a
global level in an economically sustainable manner. Due to their unique optical, electrical, and
physicochemical properties, various 2D graphene nanosheets-supported semiconductor composite
photocatalysts have been widely constructed and applied in different photocatalytic fields. In this review,
fundamental mechanisms of heterogeneous photocatalysis, including thermodynamic and kinetics
requirements, are first systematically summarized. Then, the photocatalysis-related properties of
graphene and its derivatives, and design rules and synthesis methods of graphene-based composites
are highlighted. Importantly, different design strategies, including doping and sensitization of
semiconductors by graphene, improving electrical conductivity of graphene, increasing eloectrocatalytic
active sites on graphene, strengthening interface coupling between semiconductors and graphene,
fabricating micro/nano architectures, constructing multi-junction nanocomposites, enhancing
photostability of semiconductors, and utilizing the synergistic effect of various modification strategies,
are thoroughly summarized. The important applications including photocatalytic pollutant degradation,
H-2 production, and CO2 reduction are also addressed. Through reviewing the significant advances on
this topic, it may provide new opportunities for designing highly efficient 2D graphene-based
photocatalysts for various applications in photocatalysis and other fields, such as solar cells, thermal
catalysis, separation, and purification.
Keywords
KeyWords Plus: VISIBLE-LIGHT-IRRADIATION; GRAPHITIC CARBON NITRIDE; EXPOSED 001
FACETS; NITROGEN-DOPED GRAPHENE; FEW-LAYER GRAPHENE; ONE-POT SYNTHESIS;
ASSISTED HYDROTHERMAL SYNTHESIS; HYDROGEN-PRODUCTION PERFORMANCE; OXYGEN
REDUCTION REACTION; METAL-ORGANIC FRAMEWORKS
Author Information
Reprint Address: Yu, JG (reprint author)
Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R
China.
Reprint Address: Yu, JG (reprint author)
King Abdulaziz Univ, Fac Sci, Dept Phys, Jeddah 21589, Saudi Arabia.
Addresses:
[ 1 ] South China Agr Univ, Coll Mat & Energy, Guangzhou 510642, Guangdong, Peoples R
China
[ 2 ] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070,
Peoples R China
[ 3 ] King Abdulaziz Univ, Fac Sci, Dept Phys, Jeddah 21589, Saudi Arabia
[ 4 ] South China Agr Univ, Inst New Energy & New Mat, Minist Agr, Key Lab Energy Plants
Resource & Utilizat, Guangzhou 510642, Guangdong, Peoples R China
E-mail Addresses: jiaguoyu@yahoo.com
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Funding
Funding Agency
Grant
Number
973 Program 2013CB632402
NSFC
21433007
51320105001
51372190
51272199
51672089
Fundamental Research Funds for Central Universities
WUT: 2015-III-
034
Self-determined and Innovative Research Funds of SKLWUT 2015-ZD-1
Natural Science Foundation of Hubei Province of China 2015CFA001
Industry and Research Collaborative Innovation Major Projects Of Guangzhou 201508020098
State Key Laboratory of Advanced Technology for Material Synthesis and
Processing (Wuhan University of Technology)
2015-KF-7
View funding text
Publisher
WILEY-V C H VERLAG GMBH, POSTFACH 101161, 69451 WEINHEIM, GERMANY
Categories / Classification
Research Areas: Chemistry; Science & Technology - Other Topics; Materials Science; Physics
Web of Science Categories: Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter
Document Information
Document Type: Review
Language: English
Accession Number: WOS:000393222700001
PubMed ID: 27805773
ISSN: 1613-6810
eISSN: 1613-6829
Journal Information
Table of Contents: Current Contents Connect
Impact Factor: Journal Citation Reports
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IDS Number: EJ4YF
Cited References in Web of Science Core Collection: 789
Times Cited in Web of Science Core Collection: 16
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In Situ Grown Monolayer N-Doped Graphene on CdS Hollow Spheres with Seamless Contact for Photocatalytic CO2 Reduction.

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References
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Electric Field Effect in Atomically Thin Carbon Films

TL;DR: Monocrystalline graphitic films are found to be a two-dimensional semimetal with a tiny overlap between valence and conductance bands and they exhibit a strong ambipolar electric field effect.
Journal ArticleDOI

The rise of graphene

TL;DR: Owing to its unusual electronic spectrum, graphene has led to the emergence of a new paradigm of 'relativistic' condensed-matter physics, where quantum relativistic phenomena can now be mimicked and tested in table-top experiments.
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Electrochemical Photolysis of Water at a Semiconductor Electrode

TL;DR: Water photolysis is investigated by exploiting the fact that water is transparent to visible light and cannot be decomposed directly, but only by radiation with wavelengths shorter than 190 nm.
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A low-cost, high-efficiency solar cell based on dye-sensitized colloidal TiO2 films

TL;DR: In this article, the authors describe a photovoltaic cell, created from low-to medium-purity materials through low-cost processes, which exhibits a commercially realistic energy-conversion efficiency.
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