Sintesis Material Karbon Berpori Dari Komposit Nanopartikel Zif-8/Kitosan Dan Aplikasinya Sebagai Adsorben Metilen Biru Dalam Air

Santoso, Eko (2020) Sintesis Material Karbon Berpori Dari Komposit Nanopartikel Zif-8/Kitosan Dan Aplikasinya Sebagai Adsorben Metilen Biru Dalam Air. Doctoral thesis, Institut Teknologi Sepuluh Nopember Surabaya.

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Abstract

Karbon berpori telah berhasil disintesis melalui karbonisasi satu tahap (direct carbonization) komposit nanopartikel ZIF-8/kitosan dan digunakan untuk mengadsorpsi metilen biru (MB) dalam air. Nanopartikel ZIF-8 disintesis dalam larutan kitosan pada suhu kamar dan terbentuk komposit nanopartikel ZIF-8/kitosan secara in situ. Sederet komposit dihasilkan dengan kandungan kitosan 30, 60, dan 120% dari massa ZIF-8. Nanopartikel ZIF-8 dan kompositnya dikarbonisasi dalam atmosfer gas nitrogen dengan variasi suhu 700, 800, dan 900 oC. Karakterisasi XRD dan FTIR telah mengkonfirmasi bahwa ZIF-8 yang terbentuk telah sesuai dengan literatur. Foto SEM menampakkan bahwa preparasi nanopartikel ZIF-8 dan karbon berpori telah berhasil. Adsorpsi-desorpsi gas nitrogen dan adsorpsi larutan metilen biru (MB) menunjukkan bahwa kandungan kitosan dalam komposit menyebabkan luas permukaan, porositas karbon, dan kemampuan adsorpsi dari komposit karboon lebih tinggi dibandingkan karbon ZIF-8 murni. Kandungan optimum kitosan dalam komposit untuk produksi karbon berpori adalah 60%
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Porous carbon has been synthesized successfully through direct carbonization of nanoparticle ZIF-8/chitosan composite and used for methylene blue adsorption from water. ZIF-8 nanoparticle act as a hard template of pore formation and carbonaceous material. Chitosan is an abundant oxygen polysaccharide, in composite roled as an activator and carbonaceous material also. ZIF-8 nanoparticles have synthesized in chitosan solution at room temperature and formed in situ ZIF-8/chitosan composites. A series of composites were produced with chitosan content of 30%, 60%, and 120% of ZIF-8 mass. ZIF-8 nanoparticle and its composites were carbonized in atmosphere nitrogen gas with the variation of temperature 700, 800, and 900 oC. XRD and FTIR characterizations have confirmed that the ZIF-8 formed successfully appropriate according to the literature. SEM photos have appeared that the preparation of the nanoparticles of ZIF-8 and the porous carbon has succeeded. The nitrogen gas adsorption-desorption and methylene blue solution adsorption have shown that the containing chitosan in the composites impacted the surface area, porosities, and the adsorption capabilities of the carbon of the composites higher than the carbon of pure ZIF-8. The optimum content of chitosan in the composites for the porous carbon production was 60%

Item Type:	Thesis (Doctoral)
Uncontrolled Keywords:	karbon berpori, ZIF-8, kitosan, metilen biru, adsorpsi
Subjects:	Q Science > QC Physics > QC173.4.C63 Composite materials T Technology > TA Engineering (General). Civil engineering (General) > TA455 Carbon. Nanotubes.
Divisions:	Faculty of Mathematics and Science > Chemistry > 47001-(S3) PhD Thesis
Depositing User:	eko Santoso
Date Deposited:	01 Dec 2020 13:44
Last Modified:	06 Jan 2021 08:08
URI:	http://repository.its.ac.id/id/eprint/82298

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