SINTESIS KOMPOSIT MnFe2O4/KARBON AKTIF@ZnO UNTUK ADSORPSI DAN DEGRADASI ZAT WARNA CONGO RED

OKTARISA, PUTRI and Hariani, Poedji Loekitowati and Riyanti, Fahma (2024) SINTESIS KOMPOSIT MnFe2O4/KARBON AKTIF@ZnO UNTUK ADSORPSI DAN DEGRADASI ZAT WARNA CONGO RED. Undergraduate thesis, Sriwijaya University.

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Abstract

Research on the synthesis of MnFe2O4/Activated Carbon@ZnO for adsorption and degradation of Congo red dye. Coal-based activated carbon is chemically activated. Synthesis MnFe2O4/Active Carbon and MnFe2O4/Active Carbon@ZnO were synthesized using the coprecipitation method. The composite is a powder that is faded brown in color and is magnetic. The results of the synthesis of MnFe2O4/Activated Carbon@ZnO were characterized using XRD, VSM and UV-Vis DRS. The XRD characterization results show that the crystal size of active carbon, MnFe2O4, and ZnO is 20.79; 12.89; and 28.68 nm. The VSM characterization results show a saturation magnetization value of 18.56 emu/g. The results of UV-Vis DRS characterization show that the energy gap for MnFe2O4/activated carbon@ZnO is 1.81 eV. The MnFe2O4/activated carbon@ZnO composite has a pHpzc of 5.35. The best conditions for photodegradation and adsorption are determined by varying pH, concentration and contact time. The best conditions are obtained with pH 5 conditions with a concentration of 20 mg/L for 100 minutes. The effectiveness of reducing concentration by photodegradation and adsorption was found to be 93.58% and 79.04%.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Komposit MnFe2O4/Karbon Aktif@ZnO, degradasi, adsorpsi, fotokatalitik, Congo red
Subjects:	Q Science > QD Chemistry > QD71-142 Analytical chemistry
Divisions:	08-Faculty of Mathematics and Natural Science > 47201-Chemistry (S1)
Depositing User:	Putri Oktarisa
Date Deposited:	19 Jul 2024 05:36
Last Modified:	19 Jul 2024 05:36
URI:	http://repository.unsri.ac.id/id/eprint/152031

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