Setiawan, Septian (2026) Identifikasi Kinerja UiO-66 sebagai Katalis Produksi Metanol (CH3OH) dari Gas Karbon Dioksida (CO2). Undergraduate thesis, UPN Veteran Jawa Timur.
![[img]](https://repository.upnjatim.ac.id/style/images/fileicons/text.png) |
Text (Cover)
22031010124.-cover.pdf Download (3MB) |
|
Text (Bab 1)
22031010124.-bab1.pdf Download (1MB) |
|
Text (Bab 2)
22031010124.-bab2.pdf Restricted to Repository staff only Download (4MB) |
|
Text (Bab 3)
22031010124.-bab3.pdf Restricted to Repository staff only Download (1MB) |
|
Text (Bab 4)
22031010124.-bab4.pdf Restricted to Repository staff only Download (3MB) |
|
Text (Bab 5)
22031010124.-bab5.pdf Download (404kB) |
|
Text (Daftar Pustaka)
22031010124.-daftar pustaka.pdf Download (2MB) |
|
Text (Lampiran)
22031010124.-lampiran.pdf Restricted to Repository staff only Download (1MB) |
Abstract
Metal-Organic Frameworks (MOFs) of the University of Oslo (UiO-66) type serve as functional materials acting as catalysts in the production of methanol from carbon dioxide gas. CO2 photoreduction using MOFs involves a series of reactions driven by excitons—facilitated by protons—coupled with the oxidation of H2O. This study investigated CO2 photoreduction by varying NaOH solution concentrations (0 M, 0.02 M, and 0.2 M) as the solvent medium and UiO-66 catalyst dosages (0 g/L, 0.6 g/L, and 1.0 g/L); the reaction proceeded in a closed reactor under ultraviolet (UV) light with a wavelength of 365 nm. The photoreduction process lasted for 4 hours, with CO2 injection performed over a 1-hour period. The resulting products were analyzed via GC-FID to determine the concentration of methanol formed, while the catalyst underwent XRD and SEM characterization to assess changes in its properties following the photoreduction process. The highest methanol concentration (197.70 µmol) was achieved using a 0 M NaOH solution and a catalyst dosage of 0.6 g/L. This result indicates optimal catalytic activity, as there was no catalyst overloading or saturation of operating conditions; furthermore, the UiO-66 catalyst functioned as a photocatalyst by absorbing light energy and generating stable electron-hole pairs. Electrons in the UiO-66 conduction band reduced CO2 to methanol, while holes in the valence band oxidized water or OH- ions. Characterization of the UiO-66 catalyst after photoreduction revealed a decrease in peak intensity across the entire 2-theta range and a slight shift toward higher 2-theta angles; these changes indicate lattice parameter shrinkage resulting from distortion in the Zr6 clusters and the partial loss of organic ligands. Additional characterization was performed using SEM to determine morphological changes in the UiO-66 material following the CO2 photoreduction process.
| Item Type: | Thesis (Undergraduate) | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Contributors: |
|
||||||||
| Subjects: | T Technology > TP Chemical technology > TP155 Chemical engineering | ||||||||
| Divisions: | Faculty of Engineering > Departement of Chemical Engineering | ||||||||
| Depositing User: | Septian Wahyu Setiawan | ||||||||
| Date Deposited: | 31 Aug 2026 03:06 | ||||||||
| Last Modified: | 31 Aug 2026 03:06 | ||||||||
| URI: | https://repository.upnjatim.ac.id/id/eprint/50659 |
Actions (login required)
 |
View Item |