Efficiency of CuCr2O4/Titanium dioxide nanoparticles composite for organic dye removal in aqueous solutions
Semiconductor metal oxide with TiO2 nanoparticles removes hazardous compounds from environmental samples. TiO2 nanoparticles have shown potential as an efficient photocatalyst by being employed as a nano-catalyst for the breakdown of organic contaminants in wastewater samples. To separate substances...
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Academic Press Inc.
2023
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| author | Sivaranjani, Sathish Kumar Durairaj, Kaliannan Jayalakshmi, Govindaswamy Sumathi, Jayasankar Balasubramanian, Balamuralikrishnan Chelliapan, Shreeshivadasan Kamyab, Hesam Hashim, Haslenda Kavitha, Dhamodaran |
| author_facet | Sivaranjani, Sathish Kumar Durairaj, Kaliannan Jayalakshmi, Govindaswamy Sumathi, Jayasankar Balasubramanian, Balamuralikrishnan Chelliapan, Shreeshivadasan Kamyab, Hesam Hashim, Haslenda Kavitha, Dhamodaran |
| author_sort | Sivaranjani, Sathish Kumar |
| collection | ePrints |
| description | Semiconductor metal oxide with TiO2 nanoparticles removes hazardous compounds from environmental samples. TiO2 nanoparticles have shown potential as an efficient photocatalyst by being employed as a nano-catalyst for the breakdown of organic contaminants in wastewater samples. To separate substances from contaminated samples, combined UV and visible light irradiation has been used. Sol-gel synthesis was used to produce a copper chromite-titanium nanocomposite, which was then evaluated using analytical methods, such as XRD, BET, DRS-UV, and FT-IR. Using visible light, the photocatalytic activity of a nanocomposite made of CuCr2O4 and TiO2 was investigated for its role in the breakdown of malachite green. The effects of several parameters, including pH change, anions presence, contact time, catalyst amount, concentration variation, and the kinetics of photocatalytic degradation were investigated. The magnitude of transition energy calculated using UV-DRS spectra was found to be 3.1 eV for CuCr2O4-TiO2 nanocomposite. Maximum degradation was observed at pH 7.0. The surface area and pore volume of the co-doped samples of Cr2O4 – TiO2 obtained from BET were found to be 6.1213 m2/g and 0.045063 cm3/g respectively. The average particle size of the catalyst of the nano-catalysts calculated from XRD was found to be 8 nm for TiO2 and 66 nm for TiO2–CuCrO4. The peaks obtained in FTIR between the range of 900-500 cm-1 were due to the presence of an aromatic compound. The binding mechanism of a dye molecule to the surface of CuCr2O4–TiO2 nanocomposite was analysed using quantum chemical calculations with the self-consistent reaction field technique employing integral equation formalism for the polarized continuum method and the UFF atomic radii set. |
| first_indexed | 2024-09-24T00:05:24Z |
| format | Article |
| id | utm.eprints-107284 |
| institution | Universiti Teknologi Malaysia - ePrints |
| last_indexed | 2024-09-24T00:05:24Z |
| publishDate | 2023 |
| publisher | Academic Press Inc. |
| record_format | dspace |
| spelling | utm.eprints-1072842024-09-01T06:41:58Z http://eprints.utm.my/107284/ Efficiency of CuCr2O4/Titanium dioxide nanoparticles composite for organic dye removal in aqueous solutions Sivaranjani, Sathish Kumar Durairaj, Kaliannan Jayalakshmi, Govindaswamy Sumathi, Jayasankar Balasubramanian, Balamuralikrishnan Chelliapan, Shreeshivadasan Kamyab, Hesam Hashim, Haslenda Kavitha, Dhamodaran T Technology (General) Semiconductor metal oxide with TiO2 nanoparticles removes hazardous compounds from environmental samples. TiO2 nanoparticles have shown potential as an efficient photocatalyst by being employed as a nano-catalyst for the breakdown of organic contaminants in wastewater samples. To separate substances from contaminated samples, combined UV and visible light irradiation has been used. Sol-gel synthesis was used to produce a copper chromite-titanium nanocomposite, which was then evaluated using analytical methods, such as XRD, BET, DRS-UV, and FT-IR. Using visible light, the photocatalytic activity of a nanocomposite made of CuCr2O4 and TiO2 was investigated for its role in the breakdown of malachite green. The effects of several parameters, including pH change, anions presence, contact time, catalyst amount, concentration variation, and the kinetics of photocatalytic degradation were investigated. The magnitude of transition energy calculated using UV-DRS spectra was found to be 3.1 eV for CuCr2O4-TiO2 nanocomposite. Maximum degradation was observed at pH 7.0. The surface area and pore volume of the co-doped samples of Cr2O4 – TiO2 obtained from BET were found to be 6.1213 m2/g and 0.045063 cm3/g respectively. The average particle size of the catalyst of the nano-catalysts calculated from XRD was found to be 8 nm for TiO2 and 66 nm for TiO2–CuCrO4. The peaks obtained in FTIR between the range of 900-500 cm-1 were due to the presence of an aromatic compound. The binding mechanism of a dye molecule to the surface of CuCr2O4–TiO2 nanocomposite was analysed using quantum chemical calculations with the self-consistent reaction field technique employing integral equation formalism for the polarized continuum method and the UFF atomic radii set. Academic Press Inc. 2023 Article PeerReviewed Sivaranjani, Sathish Kumar and Durairaj, Kaliannan and Jayalakshmi, Govindaswamy and Sumathi, Jayasankar and Balasubramanian, Balamuralikrishnan and Chelliapan, Shreeshivadasan and Kamyab, Hesam and Hashim, Haslenda and Kavitha, Dhamodaran (2023) Efficiency of CuCr2O4/Titanium dioxide nanoparticles composite for organic dye removal in aqueous solutions. Environmental Research, 236 (NA). NA-NA. ISSN 0013-9351 http://dx.doi.org/10.1016/j.envres.2023.116692 DOI : 10.1016/j.envres.2023.116692 |
| spellingShingle | T Technology (General) Sivaranjani, Sathish Kumar Durairaj, Kaliannan Jayalakshmi, Govindaswamy Sumathi, Jayasankar Balasubramanian, Balamuralikrishnan Chelliapan, Shreeshivadasan Kamyab, Hesam Hashim, Haslenda Kavitha, Dhamodaran Efficiency of CuCr2O4/Titanium dioxide nanoparticles composite for organic dye removal in aqueous solutions |
| title | Efficiency of CuCr2O4/Titanium dioxide nanoparticles composite for organic dye removal in aqueous solutions |
| title_full | Efficiency of CuCr2O4/Titanium dioxide nanoparticles composite for organic dye removal in aqueous solutions |
| title_fullStr | Efficiency of CuCr2O4/Titanium dioxide nanoparticles composite for organic dye removal in aqueous solutions |
| title_full_unstemmed | Efficiency of CuCr2O4/Titanium dioxide nanoparticles composite for organic dye removal in aqueous solutions |
| title_short | Efficiency of CuCr2O4/Titanium dioxide nanoparticles composite for organic dye removal in aqueous solutions |
| title_sort | efficiency of cucr2o4 titanium dioxide nanoparticles composite for organic dye removal in aqueous solutions |
| topic | T Technology (General) |
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