Graphene Oxide Covalently Functionalized with 5-Methyl-1,3,4-thiadiazol-2-amine for pH-Sensitive Ga³⁺ Recovery in Aqueous Solutions.

ABSTRACT: A novel graphene-based composite, 5-methyl-1,3,4-thiadiazol-2-amine (MTA) covalently functionalized graphene oxide (GO-MTA), was rationally developed and used for the selective sorption of Ga³⁺ from aqueous solutions, showing a higher adsorption capacity (48.20 mg g^-1) toward Ga³⁺ than In³⁺ (15.41 mg g^-1) and Sc³⁺ (~0 mg g^-1). The adsorption experiment's parameters, such as the contact time, temperature, initial Ga³⁺ concentration, solution pH, and desorption solvent, were investigated. Under optimized conditions, the GO-MTA composite displayed the highest adsorption capacity of 55.6 mg g^-1 toward Ga³⁺. Moreover, a possible adsorption mechanism was proposed using various characteri

SUBMITTER: Zhu X 

PROVIDER: S-EPMC11357510 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature