β-Cyclodextrin capped ZnS nanoparticles for CER-assisted colorimetric and spectrophotometric detection of Pb2⁺, Cu2⁺, and Hg2⁺ in an aqueous solution
Herein, simple, low-cost, and room-temperature synthesis of beta-cyclodextrin (β-CD) stabilized zinc sulfide nanoparticle (ZnS NP) through the chemical precipitation method has been reported for cation exchange reaction (CER) based colorimetric sensing of Pb2+, Cu2+, and Hg2+. Formation of β-CD stab...
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| Format: | Article |
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Elsevier
2023-11-01
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| Series: | Heliyon |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844023090588 |
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| author | Vyshnavi T. Veetil Anakha D. Rajeeve Saran G.P K.S. Manish Kumar M. Bhagiyalakshmi Mari Vinoba R. Yamuna |
| author_facet | Vyshnavi T. Veetil Anakha D. Rajeeve Saran G.P K.S. Manish Kumar M. Bhagiyalakshmi Mari Vinoba R. Yamuna |
| author_sort | Vyshnavi T. Veetil |
| collection | DOAJ |
| description | Herein, simple, low-cost, and room-temperature synthesis of beta-cyclodextrin (β-CD) stabilized zinc sulfide nanoparticle (ZnS NP) through the chemical precipitation method has been reported for cation exchange reaction (CER) based colorimetric sensing of Pb2+, Cu2+, and Hg2+. Formation of β-CD stabilized ZnS NPs (ZnS@β-CD) was verified by physicochemical characterization techniques such as XRD, XPS, FE-SEM, and TEM. ZnS@β-CD NPs showed color change selectively for the metal ions Pb2⁺, Cu2⁺, and Hg2⁺ among the various metal ions including Sn2⁺, Cr³⁺, Mn2⁺, Fe³⁺, Co2⁺, Ni2⁺, and Cd2⁺. The solubility product of reactants and the transformed products are the reason for selective CER of ZnS@β-CD NPs towards Pb2⁺, Cu2⁺, and Hg2⁺ ions. ZnS@β-CD NPs dispersion revealed rapid color change from white to orange, black, and bright yellow on the addition of higher concentrations of Pb2⁺, Cu2⁺, and Hg2⁺ respectively. This color change is due to the formation of complete CER-transformed nanostructures such as PbS, CuS, and HgS in higher concentrations (10⁻1- 10⁻³ M) of corresponding metal ions. The partial CER altered products Zn1−x,PbxS, Zn1−xCuxS and Zn1−xHgxS were detected due to the appearance of pale color in the lower metal ions concentrations of 10⁻⁴ - 10⁻⁶ M. This CER assisted transformation was also monitored through spectrophotometric methods. Moreover, infrared spectroscopic analysis was used to testify the structure of CER transformed product. The synthesized ZnS@β-CD NPs act as an efficient CER-based sensor for distinguishing and determining Pb2⁺, Cu2⁺, and Hg2⁺ at different level concentrations in the aqueous solution. |
| first_indexed | 2024-03-09T09:17:27Z |
| format | Article |
| id | doaj.art-12ecf01d2c534ba4bfd5c3a631d543fd |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-03-09T09:17:27Z |
| publishDate | 2023-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj.art-12ecf01d2c534ba4bfd5c3a631d543fd2023-12-02T07:04:27ZengElsevierHeliyon2405-84402023-11-01911e21850β-Cyclodextrin capped ZnS nanoparticles for CER-assisted colorimetric and spectrophotometric detection of Pb2⁺, Cu2⁺, and Hg2⁺ in an aqueous solutionVyshnavi T. Veetil0Anakha D. Rajeeve1Saran G.P2K.S. Manish Kumar3M. Bhagiyalakshmi4Mari Vinoba5R. Yamuna6Department of Sciences, Amrita School of Physical Sciences Coimbatore, Amrita Vishwa Vidyapeetham, India; Bio-materials Chemistry Research Laboratory, Amrita School of Engineering Coimbatore, Amrita Vishwa Vidyapeetham, IndiaDepartment of Sciences, Amrita School of Physical Sciences Coimbatore, Amrita Vishwa Vidyapeetham, India; Bio-materials Chemistry Research Laboratory, Amrita School of Engineering Coimbatore, Amrita Vishwa Vidyapeetham, IndiaDepartment of Sciences, Amrita School of Physical Sciences Coimbatore, Amrita Vishwa Vidyapeetham, India; Bio-materials Chemistry Research Laboratory, Amrita School of Engineering Coimbatore, Amrita Vishwa Vidyapeetham, IndiaDepartment of Sciences, Amrita School of Physical Sciences Coimbatore, Amrita Vishwa Vidyapeetham, India; Bio-materials Chemistry Research Laboratory, Amrita School of Engineering Coimbatore, Amrita Vishwa Vidyapeetham, IndiaDepartment of Chemistry, Central University of Kerala, Periye, Kerala 671316, IndiaPetroleum Research Center, Kuwait Institute for Scientific Research, Safat 13109, KuwaitDepartment of Sciences, Amrita School of Physical Sciences Coimbatore, Amrita Vishwa Vidyapeetham, India; Bio-materials Chemistry Research Laboratory, Amrita School of Engineering Coimbatore, Amrita Vishwa Vidyapeetham, India; Corresponding author. Department of Sciences, Amrita School of Physical Sciences Coimbatore, Amrita Vishwa Vidyapeetham, India.Herein, simple, low-cost, and room-temperature synthesis of beta-cyclodextrin (β-CD) stabilized zinc sulfide nanoparticle (ZnS NP) through the chemical precipitation method has been reported for cation exchange reaction (CER) based colorimetric sensing of Pb2+, Cu2+, and Hg2+. Formation of β-CD stabilized ZnS NPs (ZnS@β-CD) was verified by physicochemical characterization techniques such as XRD, XPS, FE-SEM, and TEM. ZnS@β-CD NPs showed color change selectively for the metal ions Pb2⁺, Cu2⁺, and Hg2⁺ among the various metal ions including Sn2⁺, Cr³⁺, Mn2⁺, Fe³⁺, Co2⁺, Ni2⁺, and Cd2⁺. The solubility product of reactants and the transformed products are the reason for selective CER of ZnS@β-CD NPs towards Pb2⁺, Cu2⁺, and Hg2⁺ ions. ZnS@β-CD NPs dispersion revealed rapid color change from white to orange, black, and bright yellow on the addition of higher concentrations of Pb2⁺, Cu2⁺, and Hg2⁺ respectively. This color change is due to the formation of complete CER-transformed nanostructures such as PbS, CuS, and HgS in higher concentrations (10⁻1- 10⁻³ M) of corresponding metal ions. The partial CER altered products Zn1−x,PbxS, Zn1−xCuxS and Zn1−xHgxS were detected due to the appearance of pale color in the lower metal ions concentrations of 10⁻⁴ - 10⁻⁶ M. This CER assisted transformation was also monitored through spectrophotometric methods. Moreover, infrared spectroscopic analysis was used to testify the structure of CER transformed product. The synthesized ZnS@β-CD NPs act as an efficient CER-based sensor for distinguishing and determining Pb2⁺, Cu2⁺, and Hg2⁺ at different level concentrations in the aqueous solution.http://www.sciencedirect.com/science/article/pii/S2405844023090588Heavy metal ionsβ-CyclodextrinZnS nanoparticlesCation exchange reactionsColorimetric sensor |
| spellingShingle | Vyshnavi T. Veetil Anakha D. Rajeeve Saran G.P K.S. Manish Kumar M. Bhagiyalakshmi Mari Vinoba R. Yamuna β-Cyclodextrin capped ZnS nanoparticles for CER-assisted colorimetric and spectrophotometric detection of Pb2⁺, Cu2⁺, and Hg2⁺ in an aqueous solution Heliyon Heavy metal ions β-Cyclodextrin ZnS nanoparticles Cation exchange reactions Colorimetric sensor |
| title | β-Cyclodextrin capped ZnS nanoparticles for CER-assisted colorimetric and spectrophotometric detection of Pb2⁺, Cu2⁺, and Hg2⁺ in an aqueous solution |
| title_full | β-Cyclodextrin capped ZnS nanoparticles for CER-assisted colorimetric and spectrophotometric detection of Pb2⁺, Cu2⁺, and Hg2⁺ in an aqueous solution |
| title_fullStr | β-Cyclodextrin capped ZnS nanoparticles for CER-assisted colorimetric and spectrophotometric detection of Pb2⁺, Cu2⁺, and Hg2⁺ in an aqueous solution |
| title_full_unstemmed | β-Cyclodextrin capped ZnS nanoparticles for CER-assisted colorimetric and spectrophotometric detection of Pb2⁺, Cu2⁺, and Hg2⁺ in an aqueous solution |
| title_short | β-Cyclodextrin capped ZnS nanoparticles for CER-assisted colorimetric and spectrophotometric detection of Pb2⁺, Cu2⁺, and Hg2⁺ in an aqueous solution |
| title_sort | β cyclodextrin capped zns nanoparticles for cer assisted colorimetric and spectrophotometric detection of pb2⁺ cu2⁺ and hg2⁺ in an aqueous solution |
| topic | Heavy metal ions β-Cyclodextrin ZnS nanoparticles Cation exchange reactions Colorimetric sensor |
| url | http://www.sciencedirect.com/science/article/pii/S2405844023090588 |
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