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The Variations of Structure and Water Flux Performance of Porous Alumina Supported Graphene Oxide Membrane During Heat Treatment Process
Qiao, Xinying; Huang, Jianguo; Li, Weidong; Gou, Mintao; Han, Yangyang; Yan, Jianghao; Zhang, Tao
2019-05-01
Source PublicationNANOSCIENCE AND NANOTECHNOLOGY LETTERS
ISSN1941-4900
Volume11Issue:5Pages:611
SubtypeArticle
AbstractGraphene oxide membrane was fabricated based on a silane-modified Al2O3 ceramic substrate via a parallel dip-coating method. The effect of thermal treatment on the structure and performance of graphene oxide membranes was mainly studied in this paper. The thermal behaviours of graphene oxide powder and membranes were analysed by thermogravimetry (TG) and differential scanning calorimetry (DSC). Scanning electron microscopy (SEM) and atomic force microscopy (AFM) were applied for micro-morphology analysis. The category and content of chemical bonds were studied by fourier transform infrared (FTIR) spectroscopy and X-ray photoelectron spectroscopy (XPS), and the interplanar spacing was investigated by X-ray diffraction (XRD). It was found that the thermal treatment temperature should not exceed 350 degrees C in order to ensure the integrity of the graphene oxide basic structure. The content of functional groups in graphene oxide was altered along with various temperatures, which led to changes in the contact angle and hydrophilicity. The pure water flux reached 15 L m(-2) h(-1) under 0.2 MPa pressure when the ceramic substrate was coated with 0.5 mg/mL graphene oxide dispersion and treated at 190 degrees C. The study indicates that the performance of the graphene oxide/ceramic composite membranes can be optimized by heat treatment.
KeywordGraphene Oxide (GO) Graphene Oxide Membrane Thermal Treatment Pure Water Flux
DOI10.1166/nnl.2019.2920
Language英语
WOS Research AreaScience & Technology - Other Topics ; Materials Science ; Physics
PublisherAMER SCIENTIFIC PUBLISHERS
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Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27134
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Qiao, Xinying,Huang, Jianguo,Li, Weidong,et al. The Variations of Structure and Water Flux Performance of Porous Alumina Supported Graphene Oxide Membrane During Heat Treatment Process[J]. NANOSCIENCE AND NANOTECHNOLOGY LETTERS,2019,11(5):611.
APA Qiao, Xinying.,Huang, Jianguo.,Li, Weidong.,Gou, Mintao.,Han, Yangyang.,...&Zhang, Tao.(2019).The Variations of Structure and Water Flux Performance of Porous Alumina Supported Graphene Oxide Membrane During Heat Treatment Process.NANOSCIENCE AND NANOTECHNOLOGY LETTERS,11(5),611.
MLA Qiao, Xinying,et al."The Variations of Structure and Water Flux Performance of Porous Alumina Supported Graphene Oxide Membrane During Heat Treatment Process".NANOSCIENCE AND NANOTECHNOLOGY LETTERS 11.5(2019):611.
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