Fabrikasi Komposit AC@ZnO/ZIF-8 Sebagai Adsorben Dan Fotokatalis Untuk Metilen Biru

Amalia, Mella Riasafitri (2023) Fabrikasi Komposit AC@ZnO/ZIF-8 Sebagai Adsorben Dan Fotokatalis Untuk Metilen Biru. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Sintesis ZIF-8 dilakukan dengan mencampurkan Zn(NO3)2•4H2O dan asam asetat (perbandingan molar 4:5) dengan 2-metilimidazol, trietilamina, dan aquaDM (perbandingan molar 3:3:4). ZnO disintesis dengan kalsinasi ZIF-8 pada suhu 500 °C selama 1 jam, sedangkan Pomegranate Peel Activated Carbon (PPAC) disintesis dari kulit buah delima yang diaktivasi menggunakan ZnCl2. ZnO/ZIF-8 disintesis dengan cara impregnasi ZnO pada ZIF-8 dengan massa ZnO sebesar 20% massa ZIF-8. PPAC@ZnO/ZIF-8 dibuat dengan cara impregnasi PPAC ke dalam ZnO/ZIF-8 dengan variasi massa sebesar 25% dan 50%. Seluruh material kemudian dikarakterisasi menggunakan XRD dan FTIR, sedangkan karakterisasi SEM-EDX hanya dilakukan pada material ZnO/ZIF-8, PPAC(50)@ZnO/ZIF-8, dan PPAC. Hasil karakterisasi menunjukkan bahwa seluruh material telah berhasil disintesis. Hasil uji adsorpsi metilen biru (MB) menunjukkan bahwa PPAC memiliki kapasitas adsorpsi tertinggi sebesar 156,25 mg/g. Di sisi lain, PPAC(50)@ZnO/ZIF-8, PPAC(25)@ZnO/ZIF-8, dan ZnO/ZIF-8 memiliki kapasitas adsorpsi berturut-turut sebesar 92,593 mg/g, 76,336 mg/g, dan 20,202 mg/g. Seluruh adsorben mengikuti kinetika adsorpsi orde dua semu dan isotermal Langmuir. Dari hasil karakterisasi FTIR PPAC, dapat dikonfirmasi bahwa metilen biru berhasil teradsorpsi. Pada uji fotokatalitik, PPAC juga menghasilkan persentase removal MB paling tinggi, yaitu sebesar 99%. PPAC(50)@ZnO/ZIF-8, PPAC(25)@ZnO/ZIF-8, dan ZnO/ZIF-8 berturut-turut memiliki persentase removal sebesar 74%, 66%, dan 31%. Hal ini menadakan PPAC@ZnO/ZIF-8 dapat diaplikasikan pada adsorpsi dan fotokatalisis MB.
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ZIF-8 was synthesized by mixing Zn(NO3)2•4H2O and acetic acid (molar ratio 4:5) with 2- methylimidazole, triethylamine, and aquaDM (molar ratio 3:3:4). ZnO was synthesized by calcination of ZIF-8 at 500 °C for 1 hour, while Pomegranate Peel Activated Carbon (PPAC) was synthesized from pomegranate peels which were activated using ZnCl2. ZnO/ZIF-8 was synthesized by impregnation of ZnO on ZIF-8 with a ZnO mass of 20% of the mass of ZIF-8. PPAC@ZnO/ZIF-8 was prepared by impregnation of PPAC into ZnO/ZIF-8 with a mass variation of 25% and 50%. All materials were then characterized using XRD and FTIR, while SEM-EDX characterization was only carried out on ZnO/ZIF-8, PPAC(50)@ZnO/ZIF-8, and PPAC materials. The characterization results show that all materials have been successfully synthesized. The results of the methylene blue (MB) adsorption test showed that PPAC had the highest adsorption capacity of 156.25 mg/g. On the other hand, PPAC(50)@ZnO/ZIF-8, PPAC(25)@ZnO/ZIF-8, and ZnO/ZIF-8 had adsorption capacities of 92.593 mg/g, 76.336 mg/g, and 20.202, respectively. mg/g. All adsorbents followed pseudo second order adsorption kinetics and Langmuir isotherms. From the FTIR PPAC characterization results, it can be confirmed that methylene blue was successfully adsorbed. In the photocatalytic test, PPAC also produced the highest MB removal percentage, which was 99%. PPAC(50)@ZnO/ZIF-8, PPAC(25)@ZnO/ZIF-8, and ZnO/ZIF-8 respectively had removal percentages of 74%, 66% and 31%. This indicates that PPAC@ZnO/ZIF-8 could be applied to the adsorption and photocatalysis of MB.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Adsorpsi, Fotokatalitik, Metilen Biru, PPAC, PPAC@ZnO/ZIF-8 Adsorption, Photocatalytic, Methylene Blue, PPAC, PPAC@ZnO/ZIF-8
Subjects:	Q Science > QD Chemistry > QD181.Z6 Zinc oxide Q Science > QD Chemistry > QD501 Catalysis. Catalysts. Q Science > QD Chemistry > QD502 Chemical kinetics Q Science > QD Chemistry > QD716 Photocatalysis.
Divisions:	Faculty of Science and Data Analytics (SCIENTICS) > Chemistry > 47201-(S1) Undergraduate Thesis
Depositing User:	Mella Riasafitri Amalia
Date Deposited:	13 Feb 2023 01:14
Last Modified:	13 Feb 2023 01:14
URI:	http://repository.its.ac.id/id/eprint/97109

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