Document Details

Document Type : Article In Journal 
Document Title :
One-Step Hydrothermal Synthesis of 2D Hexagonal Nanoplates of alpha-Fe2O3/Graphene Composites with Enhanced Photocatalytic Activity
One-Step Hydrothermal Synthesis of 2D Hexagonal Nanoplates of alpha-Fe2O3/Graphene Composites with Enhanced Photocatalytic Activity
 
Subject : physics 
Document Language : English 
Abstract : There has been significant progress in the field of semiconductor photocatalysis, but it is still a challenge to fabricate low-cost and high-activity photocatalysts because of safety issues and nonsecondary pollution to the environment. Here, 2D hexagonal nanoplates of -Fe2O3/graphene composites with relatively good distribution are synthesized for the first time using a simple, one-step, template-free, hydrothermal method that achieves the effective reduction of the graphene oxide (GO) to graphene and intimate and large contact interfaces of the -Fe2O3 nanoplates with graphene. The - Fe2O3/graphene composites showed significantly enhancement in the photocatalytic activity compared with the pure -Fe2O3 nanoplates. At an optimal ratio of 5 wt% graphene, 98% of Rhodamine (RhB) is decomposed with 20 min of irradiation, and the rate constant of the composites is almost four times higher than that of pure -Fe2O3 nanoplates. The decisive factors in improving the photocatalytic performance are the intimate and large contact interfaces between 2D hexagonal -Fe2O3 nanoplates and graphene, in addition to the high electron withdrawing/storing ability and the highconductivity of reduced graphene oxide (RGO) formed during the hydrothermal reaction. The effective charge transfer from -Fe2O3 nanoplates to graphene sheets is demonstrated by the significant weakening of photoluminescence in -Fe2O3/graphene composites. 
ISSN : 1616-301X 
Journal Name : ADVANCED FUNCTIONAL MATERIALS 
Volume : 24 
Issue Number : 36 
Publishing Year : 1435 AH
2014 AD 
Article Type : Article 
Added Date : Sunday, July 30, 2017 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
Sancan (Han(Han, Sancan InvestigatorDoctorate 
Linfeng Hu,Hu, Linfeng ResearcherDoctorate 
Ziqi Liang,Liang,, Ziqi ResearcherDoctorate 
S WagehWageh, S ResearcherDoctorate 
A.A Al-Ghamdi,Al-Ghamdi, A.A ResearcherDoctorate 
Yongsheng ChenChen, Yongsheng ResearcherDoctorate 
Xiaosheng FangFang, Xiaosheng ResearcherDoctoratexshfang@fudan.edu.cn

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