Enhanced photocatalytic response of ZnO embedded chitosan/β-cyclodextrin towards the detoxification of Cr(VI) under visible light

Jayaram Preethi; M. Hasmath Farzana; Karthik Rathinam; Sivakumar Vigneshwaran; Perumal Karthikeyan; Sankaran Meenakshi

doi:10.1016/j.ijbiomac.2019.09.246

Enhanced photocatalytic response of ZnO embedded chitosan/β-cyclodextrin towards the detoxification of Cr(VI) under visible light

Jayaram Preethi, M. Hasmath Farzana, Karthik Rathinam, Sivakumar Vigneshwaran, Perumal Karthikeyan, Sankaran Meenakshi

Research output: Contribution to journal › Article › peer-review

35 Scopus citations

Abstract

The present work focused on the assessment of heterogenous photocatalytic efficacy of ZnO@CS-β-CD towards the degradation of hexavalent chromium under visible light illumination. The prepared ZnO@CS-β-CD was extensively characterized using XRD, FTIR, SEM, EDX with mapping, TGA, DSC and UV/vis DRS techniques and the photoreduction of Cr(VI) to Cr(III) was confirmed by X-ray photoelectron spectroscopy. The DRS results revealed that the band gap of ZnO@CS-β-CD was narrowed than ZnO from 3.23 to 2.01 eV. The photocatalyst hold excellent reusability up to seven cycles and the field trail results demonstrated for the practical application for the treatment of wastewater.

Original language	English
Pages (from-to)	867-876
Number of pages	10
Journal	International Journal of Biological Macromolecules
Volume	147
DOIs	https://doi.org/10.1016/j.ijbiomac.2019.09.246
State	Published - 15 Mar 2020
Externally published	Yes

Keywords

Chromium
Photo-reduction
Visible irradiation

ASJC Scopus subject areas

Structural Biology
Biochemistry
Molecular Biology

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.ijbiomac.2019.09.246

Cite this

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title = "Enhanced photocatalytic response of ZnO embedded chitosan/β-cyclodextrin towards the detoxification of Cr(VI) under visible light",

abstract = "The present work focused on the assessment of heterogenous photocatalytic efficacy of ZnO@CS-β-CD towards the degradation of hexavalent chromium under visible light illumination. The prepared ZnO@CS-β-CD was extensively characterized using XRD, FTIR, SEM, EDX with mapping, TGA, DSC and UV/vis DRS techniques and the photoreduction of Cr(VI) to Cr(III) was confirmed by X-ray photoelectron spectroscopy. The DRS results revealed that the band gap of ZnO@CS-β-CD was narrowed than ZnO from 3.23 to 2.01 eV. The photocatalyst hold excellent reusability up to seven cycles and the field trail results demonstrated for the practical application for the treatment of wastewater.",

keywords = "Chromium, Photo-reduction, Visible irradiation",

author = "Jayaram Preethi and {Hasmath Farzana}, M. and Karthik Rathinam and Sivakumar Vigneshwaran and Perumal Karthikeyan and Sankaran Meenakshi",

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year = "2020",

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doi = "10.1016/j.ijbiomac.2019.09.246",

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T1 - Enhanced photocatalytic response of ZnO embedded chitosan/β-cyclodextrin towards the detoxification of Cr(VI) under visible light

AU - Preethi, Jayaram

AU - Hasmath Farzana, M.

AU - Rathinam, Karthik

AU - Vigneshwaran, Sivakumar

AU - Karthikeyan, Perumal

AU - Meenakshi, Sankaran

PY - 2020/3/15

Y1 - 2020/3/15

N2 - The present work focused on the assessment of heterogenous photocatalytic efficacy of ZnO@CS-β-CD towards the degradation of hexavalent chromium under visible light illumination. The prepared ZnO@CS-β-CD was extensively characterized using XRD, FTIR, SEM, EDX with mapping, TGA, DSC and UV/vis DRS techniques and the photoreduction of Cr(VI) to Cr(III) was confirmed by X-ray photoelectron spectroscopy. The DRS results revealed that the band gap of ZnO@CS-β-CD was narrowed than ZnO from 3.23 to 2.01 eV. The photocatalyst hold excellent reusability up to seven cycles and the field trail results demonstrated for the practical application for the treatment of wastewater.

AB - The present work focused on the assessment of heterogenous photocatalytic efficacy of ZnO@CS-β-CD towards the degradation of hexavalent chromium under visible light illumination. The prepared ZnO@CS-β-CD was extensively characterized using XRD, FTIR, SEM, EDX with mapping, TGA, DSC and UV/vis DRS techniques and the photoreduction of Cr(VI) to Cr(III) was confirmed by X-ray photoelectron spectroscopy. The DRS results revealed that the band gap of ZnO@CS-β-CD was narrowed than ZnO from 3.23 to 2.01 eV. The photocatalyst hold excellent reusability up to seven cycles and the field trail results demonstrated for the practical application for the treatment of wastewater.

KW - Chromium

KW - Photo-reduction

KW - Visible irradiation

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SN - 0141-8130

VL - 147

SP - 867

EP - 876

JO - International Journal of Biological Macromolecules

JF - International Journal of Biological Macromolecules

ER -

Enhanced photocatalytic response of ZnO embedded chitosan/β-cyclodextrin towards the detoxification of Cr(VI) under visible light

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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