Sun/UV-light driven photocatalytic degradation of rhodamine B dye by Zn doped CdS nanostructures as photocatalyst

The optical and electronic properties of semiconducting materials are modified by the doping of suitable elements. Pure and Zn doped (1%, 3%, 5% and 7%) CdS nanostructures are synthesized by facile, one-pot solvothermal method. The synthesized materials are characterized using different characteriza...

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Bibliographic Details
Published in:Materials chemistry and physics 2022-02, Vol.277, p.125531, Article 125531
Main Authors: Singh, Arvind, Singh, Divya, Ahmed, Bilal, Ojha, Animesh K.
Format: Article
Language:English
Subjects:
CdS nanostructures
Doping
Dyes
Energy levels
Light irradiation
Nanostructure
Optical properties
Photocatalysis
Photocatalytic activity
Photodegradation
RhB
Rhodamine
Solvothermal
Sunlight
Synthesis
Ultraviolet radiation
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Summary:The optical and electronic properties of semiconducting materials are modified by the doping of suitable elements. Pure and Zn doped (1%, 3%, 5% and 7%) CdS nanostructures are synthesized by facile, one-pot solvothermal method. The synthesized materials are characterized using different characterization techniques. The XRD results revealed that the synthesized nanostructures have both, cubic and hexagonal crystalline phases. The optical band gap is increased with the increase of Zn content in the CdS matrix. The change in absorption and emission features with doping has made the doped materials suitable for photocatalytic applications under sun light and ultra-violet (UV) irradiation. The pure and Zn doped CdS nanostructures are used for photodegradation of rhodamine B (RhB) dye under UV and sun light irradiation. The Zn (3%) doped CdS nanostructures show better photocatalytic degradation (93%) of RhB under sun light irradiation. It could be due to the combined effects of the shifting in energy levels and change in shape and size of the nanostructures with doping. [Display omitted] •Pure and Zn doped (1%, 3%, 5% and 7%) CdS nanostructures are synthesized by solvothermal method.•Zn2+ doing enhance the structural, optical and photocatalytic performance CdS nanostructures.•Synthesized nanostructures are used to degrade RhB dye under the sun and UV–vis light.•Zn 3% doped nanostructures show better photocatalytic degradation (93%) of RhB dye.
ISSN:0254-0584
1879-3312
DOI:10.1016/j.matchemphys.2021.125531