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Vol. 3, No. 4 (Fall 2017) 34-40   

Link: http://www.acerp.ir/Vol3/No4/6.pdf
 
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  Enhanced Phtocatalytic Activity of α-Fe2O3 Nanoparticles Using 2D MoS2 Nanosheets
 
M. Behtaj and P. Sangpour
 
( Received: March 13, 2017 – Accepted: July 01, 2018 )
 
 

Abstract    α‒Fe2O3/MoS2 nanocomposites were synthesized via hydrothermal method and characterized in terms of crystal structure, particle size and morphology, elemental purity and optical properties. Results confirmed the formation of α‒Fe2O3/MoS2 nanocomposites containing hematite nanoparticles with average diameter of 40 nm and MoS2 nanosheets with hexagonal crystal structure and sheet thickness of < 10 nm. Optical band gap measurements revealed decrease of the band gap of α‒Fe2O3 nanoparticles from 2.65 to 2.15 eV upon loading MoS2 nanosheets. The as‒synthesized α‒Fe2O3/MoS2 nanocomposites showed a high absorption capability in the visible irradiation. Photocatalytic examinations showed over 98 % degradation of Rhudamine Blue (Rh B) organic dye within 75 min. α‒Fe2O3/MoS2 nanocomposites enhanced the rate of degradation as compared to pure α‒Fe2O3 nanoparticles and MoS2 nanosheets. 

 

Keywords    α‒Fe2O3/MoS2 Nanocomposite, Photocatalytic activity.

 

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