Mechanistic insight into the adsorption and photocatalytic activity of a magnetically separable gamma-Fe2O3/Montmorillonite nanocomposite for rhodamine B removal
Document Type
Article
Publication Date
4-1-2022
Abstract
The magnetically separable nanocomposite of gamma-Fe2O3/montmorillonite (gamma-Fe2O3/Mt) has been synthesized by a hydrothermal method. The as-obtained nanocomposite is composed of a single phase of gamma-Fe2O3 nanoparticles homogeneously dispersed in a montmorillonite structure with high photocatalytic activity for rhodamine B photodegradation. Physicochemical characterization revealed particle sizes ranging from 10 to 30 nm with a band-gap energy of 2.3 eV. This study reveals a significant contribution of the adsorption mechanism to the degradation mechanism. The nanocomposite could be easily separated and reused by magnetic separation owing to its magnetism of 22 emu/g. The nanocomposite is also reusable without any chemical change until five cycles.
Keywords
Adsorption, Clay, Magnetic, Photocatalytic
Divisions
nanotechnology
Funders
Kementrian Riset-Badan Riset Nasional, Republic of Indonesia [Grant No: 018/DirDPPM/70/DPPM/WCR-KEMDIKBUDRISTEK/VII/2021]
Publication Title
Chemical Physics Letters
Volume
792
Publisher
Elsevier
Publisher Location
RADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS