SINTESIS SEMIKONDUKTOR ZnO-Mg DAN APLIKASINYA SEBAGAI FOTODEGRADASI ZAT WARNA METHYLENE BLUE

MELATI, MELATI and Said, Muhammad and Purwaningrum, Widia (2021) SINTESIS SEMIKONDUKTOR ZnO-Mg DAN APLIKASINYA SEBAGAI FOTODEGRADASI ZAT WARNA METHYLENE BLUE. Undergraduate thesis, Sriwijaya University.

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Abstract

The synthesis of semiconductor ZnO-Mg and application for methylene blue photodegradation had been done. Semiconductor of ZnO was doped by Mg metal. The ZnO-Mg semiconductors were made with mass ratio (3.5:5), (2:3) and (2:1) and were characterized used XRD, UV-DRS (Diffuse Reflectance Spectroscopy) and SEM. The result of characterization using XRD showed a typical peak intensity at 2θ = 32.9°. The SEM of semiconductor ZnO-Mg showed irregular and porous surface shape with the composition elements of Zn (58.88%), O (10.49%) and Mg (4.59%). The results of characterization UV-DRS (Diffuse Reflectance Spectroscopy) showed a energy bandgap of ZnO-Mg 2.3 eV. The maximum photodegradation ZnO-Mg (2:1) semiconductor to methylene blue dyes was carried out on 180 minutes contact time at pH 9 and concentration in 5 ppm with the percent effectiveness of 87.18%.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	ZnO, doping, ZnO-Mg, fotodegradasi methylene blue
Subjects:	Q Science > QD Chemistry > QD450-801 Physical and theoretical chemistry
Divisions:	08-Faculty of Mathematics and Natural Science > 47201-Chemistry (S1)
Depositing User:	Users 10258 not found.
Date Deposited:	26 Jan 2021 08:13
Last Modified:	26 Jan 2021 08:15
URI:	http://repository.unsri.ac.id/id/eprint/41085

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