Graphene quantum dots/ZnO nanocomposite: Synthesis, characterization, mechanistic investigations of photocatalytic and antibacterial activities

被引：27
作者：
Mydeen, S. Sheik [1 ,5 ]
Kumar, R. Raj [2 ]
Sivakumar, R. [1 ]
Sambathkumar, S. [3 ]
Kottaisamy, M. [4 ]
Vasantha, V. S. [5 ]
机构：
[1] Sethu Inst Technol, Dept Chem, Pulloor 626115, Tamil Nadu, India
[2] Xi An Jiao Tong Univ, Hlth Sci Ctr, Sch Basic Med Sci, Inst Med Engn,Dept Biophys, 76 Yanta West Rd, Xian 710061, Shaanxi, Peoples R China
[3] Vivekanandha Coll Arts & Sci Women Autonomous, Dept Chem, Namakal 637205, Tamil Nadu, India
[4] Thiagarajar Coll Engn, Dept Chem, Madurai 625015, Tamil Nadu, India
[5] Madurai Kamaraj Univ, Sch Chem, Madurai 625021, Tamil Nadu, India
来源：
CHEMICAL PHYSICS LETTERS | 2020年 / 761卷
关键词：
ZnO; Graphene quantum dots; Photocatalysis; Reactive oxygen species; Antibacterial activity; OXIDE NANOCOMPOSITE; TIO2; DEGRADATION; PHENOL; WATER; NANOPARTICLES; SURFACE; PHOTOACTIVITY; NANOMATERIALS; PERFORMANCE;
D O I：
10.1016/j.cplett.2020.138009
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：
A new nanocomposite of the type ZnO fence with graphene quantum dots GQD/ZnO has been synthesized by the hydrothermal method. The crystallinity, structural and morphological properties are characterized by XRD, FT-IR, Raman, FESEM, TEM, DRS and PL techniques. Interestingly, the prepared GQD/ZnO nanocomposites act as photocatalyst for the degradation of the phenol solution with a maximum of 79% under UV light irradiation. The effect of pH for photodegradation of the catalyst has also been investigated in detail. Further, the antibacterial activity of GQD/ZnO has been investigated against P. aeruginosa and the results show enhanced activity, even at low concentration.
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页数：9
相关论文
共 87 条
[11]   Toxicity of Metal Oxide Nanoparticles: Mechanisms, Characterization, and Avoiding Experimental Artefacts [J].
Djurisic, Aleksandra B. ;
Leung, Yu Hang ;
Ng, Alan M. C. ;
Xu, Xiao Ying ;
Lee, Patrick K. H. ;
Degger, Natalie ;
Wu, R. S. S. .
SMALL, 2015, 11 (01) :26-44
[12]   Blue luminescent graphene quantum dots and graphene oxide prepared by tuning the carbonization degree of citric acid [J].
Dong, Yongqiang ;
Shao, Jingwei ;
Chen, Congqiang ;
Li, Hao ;
Wang, Ruixue ;
Chi, Yuwu ;
Lin, Xiaomei ;
Chen, Guonan .
CARBON, 2012, 50 (12) :4738-4743
[13]   Hybrid Graphene/Titania Nanocomposite: Interface Charge Transfer, Hole Doping, and Sensitization for Visible Light Response [J].
Du, Aijun ;
Ng, Yun Hau ;
Bell, Nicholas J. ;
Zhu, Zhonghua ;
Amal, Rose ;
Smith, Sean C. .
JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 2011, 2 (08) :894-899
[14]   Design and photocatalytic activity of nanosized zinc oxides [J].
Gancheva, M. ;
Markova-Velichkova, M. ;
Atanasova, G. ;
Kovacheva, D. ;
Uzunov, I. ;
Cukeva, R. .
APPLIED SURFACE SCIENCE, 2016, 368 :258-266
[15]  
Geeha D., 2010, J NANOMATE BIOSTRUC, V5, P297
[16]   Synergistic effect of zinc oxide nanorods on the photocatalytic performance and the biological activity of graphene nano sheets [J].
Ghanem, Ahmed F. ;
Badawy, Abdelrahman A. ;
Mohram, Maysa E. ;
Rehim, Mona H. Abdel .
HELIYON, 2020, 6 (02)
[17]   Photoelectrochemical cells [J].
Grätzel, M .
NATURE, 2001, 414 (6861) :338-344
[18]   Synthesis and photocatalytic activity of graphene based doped TiO2 nanocomposites [J].
Gu, Yongji ;
Xing, Mingyang ;
Zhang, Jinlong .
APPLIED SURFACE SCIENCE, 2014, 319 :8-15
[19]   Defect-Mediated Reactive Oxygen Species Generation in Mg-Substituted ZnO Nanoparticles: Efficient Nanomaterials for Bacterial Inhibition and Cancer Therapy [J].
Gupta, Jagriti ;
Bahadur, D. .
ACS OMEGA, 2018, 3 (03) :2956-2965
[20]   Photocatalytic decontamination of phenol and petrochemical wastewater through ZnO/TiO2 decorated on reduced graphene oxide nanocomposite: influential operating factors, mechanism, and electrical energy consumption [J].
Hayati, Farzan ;
Isari, Ali Akbar ;
Fattahi, Moslem ;
Anvaripour, Bagher ;
Jorfi, Sahand .
RSC ADVANCES, 2018, 8 (70) :40035-40053
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