Open AccessThe Role of Na2SiO3 Loading in the Synthesis of Fe3O4-Fe2O3@SiO2 Composite
Author(s) -
Syamsi Aini,
F. Azra,
Nisreen Mizher Rahma,
Andy Cahyadi
Publication year - 2021
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 - 10.1088/1742-6596/1788/1/012017
Subject(s) - materials science , raw material , mesoporous material , mesoporous silica , diffraction , analytical chemistry (journal) , x ray crystallography , composite number , nuclear chemistry , mineralogy , crystallography , chemical engineering , inorganic chemistry , catalysis , chemistry , composite material , organic chemistry , optics , engineering , physics
Mesoporous silica on the surface of nanoparticles’ magnetic Fe 3 O 4 -Fe 2 O 3 has been synthesized in one pot reaction method by using Sijunjung iron sand and Na 2 SiO 3 as raw materials. The influence of Na 2 SiO 3 mole as raw materials on the existence of silica pore size on the surface of Fe 3 O 4 -Fe 2 O 3 composite product has been studied. The product were characterized by X-ray diffraction. The results showed that mesoporous silica start to form on the surface of the Fe 3 O 4 -Fe 2 O 3 composite when Na 2 SiO 3 was used 8 times moles of iron sand. The increasing of Na 2 SiO 3 mole lead to increase of OH − concentration and transformed some Fe 3 O 4 into Fe 2 O 3