Repository Universitas Pakuan

Detail Karya Ilmiah Dosen

Ani Iryani, Ahmad Masudi, Ade I. Rozafia, Djoko Hartanto, Mardi Santoso, Hadi Nur, And Mohammad S. Azami

Judul : Enhanced Removal of Soluble and Insoluble Dyes over Hierarchical Zeolites: Effect of Synthesis Condition
Abstrak :

Abstract: A hierarchical zeolite ZSM-5 with micro and meso-pore was prepared by optimising the most affecting parameter in sequence of desilication and dealumination. The physicochemical properties of zeolite were characterised with XRD, nitrogen adsorption–desorption, FTIR and SEM. The potential of this zeolite for decolorisation of CR, RY, MB, RhB, DB-1 and DB-14 was evaluated with adsorption isotherm, thermodynamics, kinetics, and influencing parameter for adsorption. The unique modification of ZSM-5 resulted in lower crystallinity, easier porosity control, rich terminal silanol and unbridged silanol groups which assisted in higher adsorption capacity. The adsorption capacity of the optimum ZSM-5 was 323, 435, 589, 625, 61 and 244 mg/g for CR, RY, MB, RhB, DB-1 and DB-14, respectively. The dye adsorption progressed through pseudo-first-order kinetic and close to the Langmuir model. The adsorption mechanism is proposed mainly through interaction between deprotonated silanol site and the electron-rich dye site. 

Tahun : 2020 Media Publikasi : Jurnal Internasional
Kategori : Jurnal No/Vol/Tahun : 52, Inorganics / 8 / 2020
ISSN/ISBN : doi:10.3390/inorganics8090052
PTN/S : Universitas Pakuan, ITS dan UTM Program Studi : KIMIA
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URL : https://doi.org/10.3390/inorganics8090052

 

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