title: Magnetic chitosan-graphene oxide composite for anti-microbial and dye removal applications.
abstract: Magnetic chitosan-graphene oxide (MCGO) nanocomposite was prepared as a multi-functional nanomaterial for the applications of antibacterial and dye removal. The nanocomposite was characterized by scanning electronic microscope (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD) and Fourier transform infrared spectrometer (FTIR). The antibacterial performance for MCGO against Escherichia coli was varied depending on the concentration of MCGO. SEM images of E. coli cells demonstrated that the antimicrobial performance of MCGO nanocomposite was possibly due to the damage of cell membrane. This work also explored MCGO's adsorption performance for methyl orange (MO). The experimental parameters including adsorbent mass, pH value, contact time and concentration of MO on the adsorption capacity were investigated. The maximum adsorption capacity of MCGO for MO was 398.08 mg/g. This study showed that the MCGO offered enormous potential applications for water treatment.
authors.affiliation: College of Environmental Science and Engineering, Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082, PR China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Jiang
authors.affiliation: College of Environmental Science and Engineering, Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082, PR China. Electronic address: jilaigong@gmail.com.
authors.forename: Ji-Lai
authors.initials: JL
authors.lastname: Gong
authors.affiliation: College of Environmental Science and Engineering, Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082, PR China. Electronic address: zgming@hnu.edu.cn.
authors.forename: Guang-Ming
authors.initials: GM
authors.lastname: Zeng
authors.affiliation: China National Engineering Research Center for Agrochemicals, Hunan Research Institute of Chemical Industry, Changsha 410014, PR China.
authors.forename: Xiao-Ming
authors.initials: XM
authors.lastname: Ou
authors.affiliation: College of Environmental Science and Engineering, Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082, PR China.
authors.forename: Ying-Na
authors.initials: YN
authors.lastname: Chang
authors.affiliation: College of Environmental Science and Engineering, Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082, PR China.
authors.forename: Can-Hui
authors.initials: CH
authors.lastname: Deng
authors.affiliation: College of Environmental Science and Engineering, Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082, PR China.
authors.forename: Jing
authors.initials: J
authors.lastname: Zhang
authors.affiliation: College of Environmental Science and Engineering, Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082, PR China.
authors.forename: Hong-Yu
authors.initials: HY
authors.lastname: Liu
authors.affiliation: State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China.
authors.forename: Shuang-Yan
authors.initials: SY
authors.lastname: Huang
mesh_terms: D000327:Adsorption; D000900:Anti-Bacterial Agents / Q000737:chemistry / Q000494:pharmacology; D000890:Anti-Infective Agents / Q000737:chemistry* / Q000494:pharmacology*; D002462:Cell Membrane / Q000187:drug effects; D048271:Chitosan / Q000737:chemistry*; D004396:Coloring Agents / Q000737:chemistry*; D004926:Escherichia coli / Q000187:drug effects / Q000648:ultrastructure; D006108:Graphite / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D058185:Magnetite Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D008826:Microbial Sensitivity Tests; D053761:Nanocomposites / Q000737:chemistry* / Q000648:ultrastructure; D010087:Oxides / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D014961:X-Ray Diffraction
chemical_list: D000900:Anti-Bacterial Agents; D000890:Anti-Infective Agents; D004396:Coloring Agents; D058185:Magnetite Nanoparticles; D010087:Oxides; D006108:Graphite; D048271:Chitosan
keywords: Adsorption; Antibacterial; Chitosan