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A Recent Study on Remediation of Direct Blue 15 Dye Using Halloysite Nanotubes.

Shareefraza, J. Ukkund and Prasad, Puthiyillam and Ali, E. Anqi and Syed Noeman, Taqui (2021) A Recent Study on Remediation of Direct Blue 15 Dye Using Halloysite Nanotubes. Applied Sciences, 11. p. 8196.

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A set of lab-scale experiments were designed and conducted to remedy Direct Blue 15 (DB15) dye using nontoxic halloysite nanotubes (HNT) with the view to be utilized in a textile industrial effluent (TIE). The DB15 adsorbed-HNT “sludge” was used as a reinforcing agent and plastic waste to fabricate the composite. To advance the knowledge and further understand the chemical phenomena associated with DB15 adsorption on HNT, different factors like pH value, adsorbate initial concentration, adsorbent dosage, and temperature on the composite were affected experimentally tested. To estimate the adsorption capacity of HNT, nine isotherm models were applied, and it was identified that the Brouers–Sotolongo adsorption isotherm model represented the best accuracy for predicting the adsorption behavior of the HNT. Likewise, the pseudo-second-order reaction was the predominant mechanism for the overall rate of the multi-step dye adsorption process. Additionally, it was demonstrated that the mass transfer during the process is diffusion-controlled, and thermodynamic assessments showed that the process is physisorption.

Item Type: Article
Uncontrolled Keywords: remediation; Direct Blue 15; halloysite nanotubes; diffusive mass transfer; adsorption isotherm model
Subjects: 500 Natural Sciences and Mathematics > 07 Life Sciences > 04 Microbiology > 05 Industrial Microbiology
Divisions: Plant Cell Biotechnology
Depositing User: Food Sci. & Technol. Information Services
Date Deposited: 29 Mar 2022 06:55
Last Modified: 29 Mar 2022 06:55
URI: http://ir.cftri.res.in/id/eprint/15149

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