Open AccessThe Novel Synthesis of CaMnO3 Perovskite Type-Oxide and its Catalytic Activity for Degradation of Dye
Author(s) -
Nur Oktri Mulya Dewi,
Winda Setyarini,
Amir Awaluddin,
Siti Saidah Siregar,
Amir Awaluddin
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1655/1/012040
Subject(s) - catalysis , hydrogen peroxide , perovskite (structure) , manganese oxide , degradation (telecommunications) , manganese , chemistry , oxide , inorganic chemistry , organic chemistry , telecommunications , computer science
The CaMnO 3 perovskite type-oxide has been synthesized using a citrate sol-gel method using two different MnO 2 precursors and calcium carbonate. The cryptomelane-type manganese oxide precursor produced well-crystalline CaMnO 3 perovskite, whereas pyrolusite-type manganese oxide (commercial) generated mixtures of CaMnO 3 perovskite and un-reacted MnO 2 using the same CaCO 3 as other precursor. The CaCO 3 /MnO 2 mole ratio seems to play a crucial role to obtain high purity of the CaMnO 3 perovskite. The CaMnO 3 perovskite proves to have high catalytic activity for the degradation of methylene blue (MB) using hydrogen peroxide as an oxidant. This Fenton catalyst is able to degrade 98.5% of MB within 20 minutes of degradation times at pH 2.