Open AccessStudy of co-precipitated nanomaterials magnetic MnxCo1-xFe2O4 (with x = 0.50 & 0.75) for Photocatalyst Application in MB degradation
Author(s) -
Wahid Sidik Sarifuddin,
Utari Utari,
Budi Purnama
Publication year - 2020
Publication title -
journal of physics
Language(s) - English
Resource type - Journals
eISSN - 2549-7324
pISSN - 2549-7316
DOI - 10.20961/jphystheor-appl.v4i1.40350
Subject(s) - crystallite , nuclear chemistry , analytical chemistry (journal) , ferrite (magnet) , spinel , materials science , chemistry , crystallography , metallurgy , chromatography , composite material
The crystalline structure and magnetic properties of Mn 1-x Co x Fe 2 O 4 (x = 0 & 0.25) was studied in this report. The ferrite materials were synthesized by the chemical co-precipitation method and calcinated at 1000 o C for 5 hours. The obtained materials were characterized by FTIR, XRD and VSM, and for photocatalytic activity was measured by UV-Vis spectrometer. Vibration bands at tetrahedral and octahedral site were corresponded by = 581.56 cm -1 and = 465.83 cm -1 and 474.51 cm -1 . The obtained ferrite were confirmed by XRD as spinel structure and shown that the addition of number of Mn decreased crystallite size (D) and x-ray density ( ρ x ), but lattice constants (a) increased. The crystallite size of samples with x = 0.50 was 34.85 nm, and x = 0.75 was 32.17 nm. The magnetic properties of nanoparticles shown that magnetization saturation ( Ms) from 42.05 emu/g to 54.16 emu/g increased with the addition of number of Mn. The coercive field ( H c )decreased from 408.27 Oe to 258.37 Oe. Photocatalytic activity was observed by UV-Vis spectrometer, where percentage of MB degradation (E) increase with the addition of number on Mn from 49.08% to 69.06%, either rate constant (k app ) and half life time (t 1/2 ) . Furthermore, ferrite material base Mn-Co-ferrite has good characteristic to applied for photocatalyst.