Salvanora, Lavida Aisya (2024) Sintesis Komposit TiO2/MCM-41/ZIF-8 dari Sumber Silika Abu Layang Sebagai Fotokatalis Untuk Degradasi Metilen Biru. Other thesis, Institut Teknologi Sepuluh Nopember.
Text
5004201054-Undergraduate_Thesis.pdf - Accepted Version Restricted to Repository staff only until 1 October 2026. Download (5MB) | Request a copy |
Abstract
Material silika mesopori (MCM-41) dapat diperoleh dari bahan alam berupa abu layang batubara. Karakteristik abu layang ditentukan oleh kandungan total SiO2, Fe2O3, dan Al2O3 serta kandungan CaO. Abu layang yang digunakan pada penelitian ini tergolong dalam tipe C. Material ini memiliki potensi yang sangat baik dalam berbagai bidang aplikasi, salah satunya adsorpsi karena memiliki luas permukaan yang sangat tinggi, yakni sebesar 1013 m2/g. Pada penelitian ini, MCM-41 disintesis dengan teknik hidrotermal pada kondisi optimum 140°C selama 24 jam. Untuk meningkatkan kinerja dari material silika mesopori, dilakukan kombinasi struktur hirarki mesopori-mikropori dengan material berpori lainnya, yaitu anggota dari MOFs. MOF yang dipilih pada penelitian ini adalah ZIF-8 yang disintesis dengan metode solvotermal dalam pelarut metanol. MCM-41 ditambahkan sebanyak 25% dalam kerangka ZIF-8 secara langsung saat sintesis ZIF-8. Selain itu, dilakukan penambahan material semikonduktor sebagai fotokatalis, yaitu TiO2 dengan variasi 5;10;15%. Material hasil sintesis dikarakterisasi XRD, FTIR, SEM-EDX, dan N2 adsorpsi-desorpsi. Selanjutnya, pengujian kinerja material komposit TiO2/MCM-41/ZIF-8 dilakukan pada aplikasi degradasi pewarna metilen biru (MB). Material kontrol dan komposit diuji pada rentang waktu 15 hingga 90 menit. Dilakukan pula studi kinetika adsorpsi dan analisis data persentase degradasi zat warna. Diperoleh bahwa material terbaik untuk degradasi MB di bawah sinar UV adalah material komposit TiO2/MCM-41/ZIF-8 variasi 15% dengan persentase degradasi mencapai 97,63%.
=================================================================================================================================
Mesoporous silica material (MCM-41) can be obtained from natural materials in the form of coal fly ash. The characteristics of fly ash are determined by the total content of SiO2, Fe2O3, and Al2O3 as well as the CaO content. The fly ash used in this research is classified as type C. This material has excellent potential in various application fields, one of which is adsorption because it has a very high surface area, namely 1013 m2/g. In this research, MCM-41 was synthesized using hydrothermal techniques at optimum conditions of 140°C for 24 hours. To improve the performance of mesoporous silica materials, a hierarchical mesoporous-microporous structure is combined with other porous materials, namely MOFs. The MOF chosen in this research is ZIF-8 which was synthesized using the solvothermal method in methanol solvent. MCM-41 was added as much as 25% in the ZIF-8 framework directly during ZIF-8 synthesis. Apart from that, semiconductor material was added as a photocatalyst, namely TiO2 with variations of 5;10;15%. The synthesized material was characterized by XRD, FTIR, SEM-EDX, and N2 adsorption-desorption. Next, performance testing of the TiO2/MCM-41/ZIF-8 composite material was carried out on the application of methylene blue (MB) dye degradation. Control and composite materials were tested over a time period of 15 to 90 minutes. Adsorption kinetics studies and analysis of dye degradation percentage data were also carried out. It was found that the best material for MB degradation under UV light was the TiO2/MCM-41/ZIF-8 composite material with a variation of 15% with a degradation percentage reaching 97.63%.
Item Type: | Thesis (Other) |
---|---|
Uncontrolled Keywords: | Abu Layang, MCM-41, ZIF-8, TiO2, Fotokatalis, Metilen Biru Coal Fly Ash, Photocatalyst, Methylene Blue |
Subjects: | Q Science > QD Chemistry > QD716 Photocatalysis. |
Divisions: | Faculty of Science and Data Analytics (SCIENTICS) > Chemistry > 47201-(S1) Undergraduate Thesis |
Depositing User: | Lavida Aisya Salvanora |
Date Deposited: | 16 Aug 2024 08:30 |
Last Modified: | 16 Aug 2024 08:30 |
URI: | http://repository.its.ac.id/id/eprint/114200 |
Actions (login required)
View Item |