James Friday Amaku, Innocent Kanayo Ugwuanyi, Okoche Kelvin Amadi, Fanyana M. Mtunzi, Jesse Greener
{"title":"Otolith-derived nanocomposite for the removal of tetrazine from water: thermodynamic, kinetic, and isotherm studies","authors":"James Friday Amaku, Innocent Kanayo Ugwuanyi, Okoche Kelvin Amadi, Fanyana M. Mtunzi, Jesse Greener","doi":"10.1002/ep.70203","DOIUrl":null,"url":null,"abstract":"<p>The performance of the multi-walled carbon nanotubes (MWCNTs)–calcined otoliths (OLT) composite (MTO) in removing tetrazine (Tatz) from aqueous solution was evaluated and compared with that of calcined otoliths (OLT) alone. To find the ideal sorption conditions for Tatz removal, the effects of key variables, including pH, contact time, adsorbent amount, initial Tatz concentration, and adsorbate temperature, were investigated through batch adsorption trials. The uptake of Tatz by OLT and MTO was dependent on the aforementioned factors of adsorption. The pseudo-second-order model provided the best fit for the kinetic data of OLT and MTO, reflecting a chemisorptive mechanism involving two molecular interactions between Tatz and the active binding sites. The Langmuir and the Freundlich models best described the equilibrium data obtained for both OLT and MTO, respectively. Therefore, MTO exhibited a higher removal efficiency for Tatz, with an adsorption capacity of 58.75 mg g<sup>−1</sup>, compared to 19.53 mg g<sup>−1</sup> for OLT. Therefore, using MTO as a possible sorbent for wastewater and effluent treatment is doable and ought to be investigated further to reduce water pollution.</p>","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"45 1","pages":""},"PeriodicalIF":2.3000,"publicationDate":"2025-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Environmental Progress & Sustainable Energy","FirstCategoryId":"93","ListUrlMain":"https://aiche.onlinelibrary.wiley.com/doi/10.1002/ep.70203","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 0
Abstract
The performance of the multi-walled carbon nanotubes (MWCNTs)–calcined otoliths (OLT) composite (MTO) in removing tetrazine (Tatz) from aqueous solution was evaluated and compared with that of calcined otoliths (OLT) alone. To find the ideal sorption conditions for Tatz removal, the effects of key variables, including pH, contact time, adsorbent amount, initial Tatz concentration, and adsorbate temperature, were investigated through batch adsorption trials. The uptake of Tatz by OLT and MTO was dependent on the aforementioned factors of adsorption. The pseudo-second-order model provided the best fit for the kinetic data of OLT and MTO, reflecting a chemisorptive mechanism involving two molecular interactions between Tatz and the active binding sites. The Langmuir and the Freundlich models best described the equilibrium data obtained for both OLT and MTO, respectively. Therefore, MTO exhibited a higher removal efficiency for Tatz, with an adsorption capacity of 58.75 mg g−1, compared to 19.53 mg g−1 for OLT. Therefore, using MTO as a possible sorbent for wastewater and effluent treatment is doable and ought to be investigated further to reduce water pollution.
期刊介绍:
Environmental Progress , a quarterly publication of the American Institute of Chemical Engineers, reports on critical issues like remediation and treatment of solid or aqueous wastes, air pollution, sustainability, and sustainable energy. Each issue helps chemical engineers (and those in related fields) stay on top of technological advances in all areas associated with the environment through feature articles, updates, book and software reviews, and editorials.