KAMILAH, ANISAH and Riyanti, Fahma and Hariani, Poedji Loekitowati (2024) SINTESIS KOMPOSIT NiFe2O4/KARBON AKTIF@ZnO UNTUK ADSORPSI DAN DEGRADASI ZAT WARNA CONGO RED. Undergraduate thesis, Sriwijaya University.
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Abstract
This research aims to synthesize NiFe2O4/activated carbon@ZnO composite used in the adsorption and degradation process of Congo red dye. The synthesized product was characterized using XRD, VSM and UV-Vis DRS instruments against Congo red dye in various pH, dye concentration, and contact time. The synthesis of the NiFe2O4/activated carbon@ZnO composite was carried out using precipitation method to produce a light brown powder which has magnetic properties. XRD characterization results showed the highest intensity at 2θ angle of 36.25° with a crystallite size of 20,26 nm. VSM characterization showed a saturation magnetization value of 23.36 emu/g. UV-Vis DRS characterization show that the NiFe2O4/activated carbon@ZnO energy gap was 2.01 eV. Magnetic nanoparticles NiFe2O4/activated carbon@ZnO has a pHpzc of 6.50. The best condition for Congo red dye adsorption using the NiFe2O4/activated carbon@ZnO composite was at pH 5 with a concentration 20 mg/L and a contact time of 60 minutes. The effectiveness of concentration obtained by UV irradiation was 63.02% and without UV irradiation was 55.11%. NiFe2O4/activated carbon@ZnO can be used to degrade congo red dye.
Item Type: | Thesis (Undergraduate) |
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Uncontrolled Keywords: | Congo red, adsorpsi, degradasi, NiFe2O4/karbon aktif@ZnO |
Subjects: | Q Science > QD Chemistry > QD450-801 Physical and theoretical chemistry |
Divisions: | 08-Faculty of Mathematics and Natural Science > 47201-Chemistry (S1) |
Depositing User: | Anisah Kamilah |
Date Deposited: | 19 Jul 2024 05:19 |
Last Modified: | 19 Jul 2024 05:19 |
URI: | http://repository.unsri.ac.id/id/eprint/152002 |
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