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Synthesis of Zn 2 TiO 4 @CdS Core‐shell Heteronanostructures by Novel Thermal Decomposition Approach for Photocatalytic Application
Author(s) -
Mahajan Jatin,
Jeevanandam Pethaiyan
Publication year - 2019
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201903544
Subject(s) - photocatalysis , materials science , nanoparticle , chemical engineering , x ray photoelectron spectroscopy , shell (structure) , thermal decomposition , aqueous solution , nanotechnology , catalysis , composite material , chemistry , organic chemistry , engineering
Zn 2 TiO 4 @CdS core‐shell heteronanostructures with Zn 2 TiO 4 as core and CdS nanoparticles as shell have been synthesized for the first time by a novel thermal decomposition approach. The size of CdS nanoparticles in the shell can be easily tuned by varying the amount of single molecular precursor (bis(thiourea)cadmium acetate, [Cd(CS(NH 2 ) 2 ) 2 ]⋅(CH 3 COO) 2 ). Various state‐of‐art analytical techniques prove the formation of Zn 2 TiO 4 @CdS core‐shell heteronanostructures. Powder XRD results confirm the presence of cubic Zn 2 TiO 4 and hexagonal CdS in the core‐shell heteronanostructures. SEM and TEM studies indicate spherical morphology for pure Zn 2 TiO 4 and formation of core‐shell structure in Zn 2 TiO 4 @CdS with Zn 2 TiO 4 as core and CdS nanoparticles as shell. XPS measurements prove the presence of Zn 2+ , Ti 4+ , Cd 2+ and S 2− in the Zn 2 TiO 4 @CdS core‐shell heteronanostructures. The synthesized Zn 2 TiO 4 @CdS core‐shell heteronanostructures were explored for photocatalytic degradation of crystal violet in an aqueous solution. The core‐shell heteronanostructures exhibit better photocatalytic activity as compared to their parent materials.