Sintesis Satu Tahap Kitosan/ZIF-8 Dan Fe2O3/Kitosan/ZIF-8 Serta Kinerjanya Sebagai Adsorben Metilen Biru Dalam Air

Ramadhanty, Salsabila Rizky (2021) Sintesis Satu Tahap Kitosan/ZIF-8 Dan Fe2O3/Kitosan/ZIF-8 Serta Kinerjanya Sebagai Adsorben Metilen Biru Dalam Air. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

Text 01211740000088-Undergraduate_Thesis.pdf - Accepted Version Restricted to Repository staff only until 1 October 2023. Download (7MB) | Request a copy

Abstract

Sintesis ZIF-8 dan Kitosan/ZIF-8 telah berhasil dilakukan pada temperatur 25 °C dalam pelarut asam asetat 2% dengan variasi penambahan kitosan sebanyak 50 dan 100% terhadap massa ZIF-8. Penambahan Fe2O3 sebanyak 20% terhadap massa ZIF-8 ke dalam campuran reaksi dihasilkan komposit Fe2O3/KITOSAN/ZIF-8. Komposit yang dihasilkan dinotasikan sebagai C50/ZIF-8, C100/ZIF-8, Fe2O3/C50/ZIF-8, dan Fe2O3/C100/ZIF-8. Hasil sintesis dikarakterisasi menggunakan instrument XRD, FTIR, dan SEM-EDX. Difraktogram XRD serta spektra FTIR semua material hasil sintesis menunjukkan pola yang sama seperti ZIF-8 referensi. Hasil karakterisasi SEM menunjukkan bahwa ZIF-8 hasil sintesis memiliki morfologi permukaan dodecahedron rombik, tetapi dengan penambahan kitosan serta Fe2O3 menyebabkan perubahan morfologi. Kapasitas adsorpsi terhadap zat warna metilen biru (MB) dalam air yang paling tinggi ditunjukkan oleh Fe2O3/C100/ZIF-8, dengan nilai kapasitas adsorpsi sebesar 212,766 mg/g pada waktu kontak 20 menit dan kondisi larutan pH=7. Adsorpsi MB pada ZIF-8 dan semua kompositnya mengikuti kinetika reaksi orde dua semu, serta sesuai dengan isotermal adsorpsi Langmuir.
==================================================================================================
The synthesis of ZIF-8 and Chitosan/ZIF-8 has been successfully carried out at room temperature in an acetic acid solvent with the addition of 50 and 100% chitosan to the mass of ZIF-8. The addition of 20% Fe2O3 to the mass of ZIF-8 into the reaction mixture resulted in a Fe2O3/KITOSAN/ZIF-8 composite. The resulting composites are denoted as C50/ZIF-8, C100/ZIF-8, Fe2O3/C50/ZIF-8, and Fe2O3/C100/ZIF-8. The results of the synthesis were characterized using XRD, FTIR, and SEM-EDX instruments. The XRD diffractogram and FTIR spectra of all the synthesized materials showed the same pattern as the reference ZIF-8. The results of SEM characterization showed that the synthesized ZIF-8 had a rhombic dodecahedron surface morphology, but the addition of chitosan and Fe2O3 caused morphological changes. The highest adsorption capacity of methylene blue (MB) in water was shown by Fe2O3/C100/ZIF-8, with an adsorption capacity value of 212.766 mg/g at a contact time of 20 minutes and a solution condition of pH=7. MB adsorption on ZIF-8 and all of its composites followed pseudo-second-order reaction kinetics and were in accordance with Langmuir adsorption isothermal.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	ZIF-8, Kitosan, Fe2O3, Metilen Biru, Adsorpsi, Chitosan, Methylene Blue, Adsorption
Subjects:	Q Science > QD Chemistry > QD502 Chemical kinetics Q Science > QD Chemistry > QD547 Flocculation, precipitation, adsorption, etc.
Divisions:	Faculty of Science and Data Analytics (SCIENTICS) > Chemistry > 47201-(S1) Undergraduate Thesis
Depositing User:	Salsabila Rizky Ramadhanty
Date Deposited:	24 Aug 2021 01:37
Last Modified:	24 Aug 2021 01:37
URI:	http://repository.its.ac.id/id/eprint/90103

Actions (login required)

View Item