SINTESIS Ti-MCM-41 UNTUK FOTODEGRADASI TERHADAP ZAT WARNA EOSIN YELLOW
| Main Authors: | , SUMAIYAH, S.Pd, , Prof. Dr.rer.nat. Nuryono, MS. |
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| Format: | Thesis NonPeerReviewed |
| Terbitan: |
[Yogyakarta] : Universitas Gadjah Mada
, 2011
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| Subjects: | |
| Online Access: |
https://repository.ugm.ac.id/89755/ http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=52247 |
Daftar Isi:
- A study of Ti-MCM-41 synthesis has been conducted directly through hydrothermal method using a precursor of titanium (IV) isopropoxide (C12H28O4Ti) as the Ti source, tetraethyl ortosilicate (TEOS) as silicate and surfactant sources cethyltrimethyl ammonium bromide (CTAB) as the template. The synthesis was conducted by mixing all reactants on the closed teflon in 150° temperature for 48 hours. Then the result was calcined in 540° for 5 hours. The solid material of the result was characterized using the X-ray diffraction (XRD) method, fourier transform infrared (FTIR) spectrophotometry, transmission electron microscope (TEM) and spectrophotometry UV-Vis reflectance. The result in the form of solid material, then used as the catalyst photodegradation to eosin yellow dyes in various pH, initial concentration of eosin yellow and the time of contact period. The same treatment was also done for catalyst material of TiO2. Analysis result of FTIR shows that there is a functional groups of Si-OH and bonding of Ti-O-Si in Ti-MCM-41 material. X-ray diffraction patern and TEM data shows that mesopori material has been formed hexagonal structure with wide pore of 2.1 nm. UV-Vis reflectance analysis shows band gap energy for Ti-MCM-41 and TiO2 as wide as 3.80 and 3.15 eV, espectualy optimum pH reached at pH=7 and the contact time of 180 minutes. Ti-MCM-41 has photodegradation activity (23.27%) which is almost the same as TiO2 activity (26.06%) for the initial concentration of eosin yellow 38.41 ppm at the optimum condition. Study kinetic of photodegradations reaction follows pseudo second order reaction model with the value of k = 5 x10-3 for Ti-MCM-41 and value of k = 6 x10-3 for TiO2.