Development of porous structured polyvinyl alcohol/zeolite/carbon composites as adsorbent

7th International Conference on Key Engineering Materials

材料科学;工业技术

Laksmono, J.A.^1 ; Sudibandriyo, M.^1 ; Saputra, A.H.^1 ; Haryono, A.^2

Department of Chemical Engineering, Faculty of Engineering, Universitas Indonesia, Depok - Java

16424, Indonesia^1

Research Center for Chemistry, Indonesian Institute of Sciences, Kawasan PUSPIPTEK Serpong, Tangerang Selatan Banten

15314, Indonesia^2

关键词: Composite adsorbents;    Fourier transform infra reds;    Poly (vinyl alcohol) (PVA);    Polymerization method;    Preparation process;    Separation process;    Supercritical fluid extraction (SFE);    Three-layered structures;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/201/1/012006/pdf
DOI  :  10.1088/1757-899X/201/1/012006

来源: IOP

【 摘 要 】

Adsorption is a separation process that has higher energy efficiency than others. Analyzing the nature of the adsorbate and the selection of suitable adsorbent are key success in adsorption. The performance of the adsorbent can be modified either physically or chemically to obtain the efficiency and effectiveness of the adsorption, this can be facilitated by using a composite adsorbent. In this study, we have conducted the preparation process of a polyvinyl alcohol (PVA)/zeolite/carbon composites. The resulting adsorbent composites are dedicated for ethanol - water dehydration proposes. The composites were prepared using cross-linked polymerization method followed by supercritical fluid extraction (SFE) to obtain the porous structured upon drying process. The characterization of the functional groups and morphology were performed by using Fourier Transform Infra-Red (FTIR) and Scanning Electron Microscopy (SEM), respectively. The FTIR analysis showed that composite prepared by SFE method formed hydrogen bonding confirmed by the appearance of peaks at 2950 - 3000 cm-1compared to composite without SFE method, whereas, the results of SEM study showed the formation of three layered structures. On basis of the obtained results, it can be shown that PVA/zeolite/carbon has high potential to be develop further as an adsorbent composite.