Facile synthesis of ZnO flowers modified graphene like MoS2 sheets for enhanced visible-light-driven photocatalytic activity and antibacterial properties

被引:141
作者
Awasthi, Ganesh Prasad [1 ]
Adhikari, Surya Prasad [1 ,2 ,4 ]
Ko, Sungwon [1 ]
Kim, Han Joo [3 ]
Park, Chan Hee [1 ,4 ]
Kim, Cheol Sang [1 ,4 ]
机构
[1] Chonbuk Natl Univ, Grad Sch, Dept Bionanosyst Engn, Jeonju 561756, South Korea
[2] Tribhuvan Univ, Inst Engn, Kathmandu, Nepal
[3] Chonbuk Natl Univ, Engn Coll, Div Convergence Technol Engn, Jeonju 561756, South Korea
[4] Chonbuk Natl Univ, Div Mech Design Engn, Jeonju 561756, South Korea
基金
新加坡国家研究基金会;
关键词
ZnO; Sheet like MoS2; Photocatalytic activity; Antibacterial property; NANOPARTICLES; WATER; TIO2; PHOTOLUMINESCENCE; NANOSTRUCTURES; PHOTOOXIDATION; DEPOSITION; MORPHOLOGY; EFFICIENCY; MECHANISM;
D O I
10.1016/j.jallcom.2016.04.267
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Zinc oxide (ZnO) nano flowers uniformly attached to the surface of Molybdenum disulfide (MoS2) sheet were successfully prepared via a simple facile one pot hydrothermal method. The morphology and microstructure of the prepared samples was characterized using field - emission scanning electron microscopy (FE-SEM), Transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), and photoluminescence (PL) spectroscopy. The Brunauer-EmmettTeller (BET) surface area was determined using physical and chemical analyzer. The characterization results showed that the flowers like ZnO micro-structures were uniformly attached to the surface of MoS2. The as-prepared MoS2/ZnO composite showed enhanced photocatalytic activity and considerable stability for the photo degradation of phenol red as compared with pure MoS2 and ZnO under both UV and visible light irradiation. Such an enhancement of photo degradation capability was ascribed to the synergistic effect between the flowers-shaped ZnO particles and sheet-like structure of MoS2, which boost the migration efficiency of photo-induced electrons and hinder electron-hole recombination rate. It was also found that the amount of MoS2 in the composite has a significant effect on the degradation activity. Moreover, the antibacterial activity test towards the gram negative Escherichia-coli showed that the MoS2/ZnO composite has better antibacterial properties compared to pure ZnO and MoS2. (C) 2016 Published by Elsevier B.V.
引用
收藏
页码:208 / 215
页数:8
相关论文
共 41 条
[1]   Deposition of ZnO flowers on the surface of g-C3N4 sheets via hydrothermal process [J].
Adhikari, Surya Prasad ;
Pant, Hem Raj ;
Kim, Han Joo ;
Park, Chan Hee ;
Kim, Cheol Sang .
CERAMICS INTERNATIONAL, 2015, 41 (10) :12923-12929
[2]   One pot synthesis and characterization of Ag-ZnO/g-C3N4 photocatalyst with improved photoactivity and antibacterial properties [J].
Adhikari, Surya Prasad ;
Pant, Hem Raj ;
Kim, Jun Hee ;
Kim, Han Joo ;
Park, Chan Hee ;
Kim, Cheol Sang .
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2015, 482 :477-484
[3]   Arginine-assisted immobilization of silver nanoparticles on ZnO nanorods: an enhanced and reusable antibacterial substrate without human cell cytotoxicity [J].
Agnihotri, Shekhar ;
Bajaj, Geetika ;
Mukherji, Suparna ;
Mukherji, Soumyo .
NANOSCALE, 2015, 7 (16) :7415-7429
[4]   Effect of alkaline-doped TiO2 on photocatalytic efficiency [J].
Bessekhouad, Y ;
Robert, D ;
Weber, JV ;
Chaoui, N .
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2004, 167 (01) :49-57
[5]   In situ synthesis of a MoS2/CoOOH hybrid by a facile wet chemical method and the catalytic oxidation of CO in epoxy resin during decomposition [J].
Feng, Xiaming ;
Xing, Weiyi ;
Song, Lei ;
Hu, Yuan .
JOURNAL OF MATERIALS CHEMISTRY A, 2014, 2 (33) :13299-13308
[6]   The synthesis and properties of ZnO-graphene nano hybrid for photodegradation of organic pollutant in water [J].
Fu, Dongying ;
Han, Gaoyi ;
Chang, Yunzhen ;
Dong, Jianhua .
MATERIALS CHEMISTRY AND PHYSICS, 2012, 132 (2-3) :673-681
[7]   Synthesis of ZnO decorated graphene nanocomposite for enhanced photocatalytic properties [J].
Gayathri, S. ;
Jayabal, P. ;
Kottaisamy, M. ;
Ramakrishnan, V. .
JOURNAL OF APPLIED PHYSICS, 2014, 115 (17)
[8]   The rise of graphene [J].
Geim, A. K. ;
Novoselov, K. S. .
NATURE MATERIALS, 2007, 6 (03) :183-191
[9]  
Gong YJ, 2014, NAT MATER, V13, P1135, DOI [10.1038/NMAT4091, 10.1038/nmat4091]
[10]   Depletion-mode ZnO nanowire field-effect transistor [J].
Heo, YW ;
Tien, LC ;
Kwon, Y ;
Norton, DP ;
Pearton, SJ ;
Kang, BS ;
Ren, F .
APPLIED PHYSICS LETTERS, 2004, 85 (12) :2274-2276