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Development of Magnetite–Diatomite/Carboxymethyl Cellulose Nanocomposite for Enhanced Chromium (VI) Removal from Tannery Effluent: Development of Magnetite–Diatomite/Carboxymethyl Cellulose Nanocomposite for Enhanced Chromium (VI) Removal from Tannery Effluent: Lemessa, Demesa, Chebude, Sedda, and Alemayehu

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Title: Development of Magnetite–Diatomite/Carboxymethyl Cellulose Nanocomposite for Enhanced Chromium (VI) Removal from Tannery Effluent: Development of Magnetite–Diatomite/Carboxymethyl Cellulose Nanocomposite for Enhanced Chromium (VI) Removal from Tannery Effluent: Lemessa, Demesa, Chebude, Sedda, and Alemayehu
Authors: Lemessa, Gemechu1,2 (AUTHOR) gemechulemecha@gmail.com, Demesa, Abayneh Getachew3 (AUTHOR), Chebude, Yonas1 (AUTHOR), Sedda, Ahmed4 (AUTHOR), Alemayehu, Esayas5 (AUTHOR)
Source: JOM: The Journal of The Minerals, Metals & Materials Society (TMS). May2025, Vol. 77 Issue 5, p3377-3393. 17p.
Subjects: Superconducting quantum interference devices, Carboxymethylcellulose, Response surfaces (Statistics), X-ray diffraction, Adsorption capacity
Abstract: Two distinct synthesis procedures have been employed to develop a magnetic–diatomite/carboxymethyl cellulose nanocomposite (MDM-CMC) for the efficient adsorptive removal of Cr (VI) from tannery effluent. These procedures involve co-precipitating the magnetic–diatomite nanocomposite (MDM) and solution blending with carboxymethyl cellulose (CMC). The nanocomposite adsorbents were characterized using XRD, FTIR, SEM, and superconducting quantum interference device (SQUID) magnetometry. The effects of operational factors on Cr (VI) removal efficiencies were investigated using the Box–Behnken design of response surface methodology (BBD-RSM). The factors examined included the starting Cr(VI) loads, pH, adsorbent dose, and contact duration. The MDM-CMC exhibited 89.73% Cr(VI) removal efficiencies and 7.13 mg/g of adsorption capacities from tannery effluent in optimized operational conditions. The adsorption process was best described by the pseudo-second-order kinetic and the Freundlich isotherm, demonstrating the highest correlation coefficient (R2) and the lowest chi-square (χ2) values, providing the best fit for the adsorption data. Thermodynamic analysis of the adsorption process indicated that it was endothermic and spontaneous, with the adsorbent exhibiting a degree of randomization in the aqueous solution. [ABSTRACT FROM AUTHOR]
Copyright of JOM: The Journal of The Minerals, Metals & Materials Society (TMS) is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Development of Magnetite–Diatomite/Carboxymethyl Cellulose Nanocomposite for Enhanced Chromium (VI) Removal from Tannery Effluent: Development of Magnetite–Diatomite/Carboxymethyl Cellulose Nanocomposite for Enhanced Chromium (VI) Removal from Tannery Effluent: Lemessa, Demesa, Chebude, Sedda, and Alemayehu
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  Data: Two distinct synthesis procedures have been employed to develop a magnetic–diatomite/carboxymethyl cellulose nanocomposite (MDM-CMC) for the efficient adsorptive removal of Cr (VI) from tannery effluent. These procedures involve co-precipitating the magnetic–diatomite nanocomposite (MDM) and solution blending with carboxymethyl cellulose (CMC). The nanocomposite adsorbents were characterized using XRD, FTIR, SEM, and superconducting quantum interference device (SQUID) magnetometry. The effects of operational factors on Cr (VI) removal efficiencies were investigated using the Box–Behnken design of response surface methodology (BBD-RSM). The factors examined included the starting Cr(VI) loads, pH, adsorbent dose, and contact duration. The MDM-CMC exhibited 89.73% Cr(VI) removal efficiencies and 7.13 mg/g of adsorption capacities from tannery effluent in optimized operational conditions. The adsorption process was best described by the pseudo-second-order kinetic and the Freundlich isotherm, demonstrating the highest correlation coefficient (R2) and the lowest chi-square (χ2) values, providing the best fit for the adsorption data. Thermodynamic analysis of the adsorption process indicated that it was endothermic and spontaneous, with the adsorbent exhibiting a degree of randomization in the aqueous solution. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of JOM: The Journal of The Minerals, Metals & Materials Society (TMS) is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Type: general
      – SubjectFull: Carboxymethylcellulose
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      – SubjectFull: Response surfaces (Statistics)
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      – SubjectFull: Adsorption capacity
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      – TitleFull: Development of Magnetite–Diatomite/Carboxymethyl Cellulose Nanocomposite for Enhanced Chromium (VI) Removal from Tannery Effluent: Development of Magnetite–Diatomite/Carboxymethyl Cellulose Nanocomposite for Enhanced Chromium (VI) Removal from Tannery Effluent: Lemessa, Demesa, Chebude, Sedda, and Alemayehu
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            NameFull: Lemessa, Gemechu
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            NameFull: Demesa, Abayneh Getachew
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              M: 05
              Text: May2025
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