Simultaneous bio-functionalization and reduction of graphene oxide by baker's yeast

被引：235

作者：

Khanra, Partha ^{[1
]}

Kuila, Tapas ^{[1
]}

Kim, Nam Hoon ^{[2
]}

Bae, Seon Hyeong ^{[1
]}

Yu, Dong-sheng ^{[1
]}

Lee, Joong Hee ^{[1
,2
,3
]}

机构：

[1] Chonbuk Natl Univ, Dept BIN Fus Technol, WCU Program, Jeonju 561756, Jeonbuk, South Korea

[2] Chonbuk Natl Univ, Dept Hydrogen & Fuel Cell Engn, Jeonju 561756, Jeonbuk, South Korea

[3] Chonbuk Natl Univ, BIN Fus Res Ctr, Dept Polymer & Nano Engn, Jeonju 561756, Jeonbuk, South Korea

来源：

CHEMICAL ENGINEERING JOURNAL | 2012年 / 183卷

基金：

新加坡国家研究基金会;

关键词：

Bio-functionalization; Reduction; Graphene; Ultraviolet-visible spectroscopy; X-ray photoelectron spectroscopy; LIGHT-EMITTING-DIODES; FACILE SYNTHESIS; GREEN REDUCTION; ADSORPTION;

D O I：

10.1016/j.cej.2011.12.075

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

An environmentally friendly, cost effective, and simple methodology for the preparation of surface modified graphene has been described in this paper. Baker's yeast containing nicotinamide adenine dinucleotide phosphate (NADPH) has been used as a reducing and functionalizing agent. The amine functional groups of NADPH can easily couple with the epoxy functionalities of graphene oxide (GO) and forms stable water dispersion of yeast-reduced graphene oxide (YR-GO). Ultraviolet-visible spectroscopy, Fourier transform infrared spectroscopy (FT-IR), and X-ray photoelectron spectroscopy (XPS) analysis confirm the successful reduction of GO to graphene. FT-IR and XPS analysis also indicate the doping of amine (-NH2) functionalities of NADPH molecules on the surface of graphene. The formation of defects further supports the bio-functionalization of graphene as indicated in the Raman spectrum of YR-GO. All these findings clearly indicate that GO can be reduced and functionalized by simple eco-friendly method by using Baker's yeast to produce water dispersible graphene. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：526 / 533

页数：8

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