Preparation of magnetite-nanoparticle-decorated NiFe layered double hydroxide and its adsorption performance for congo red dye removal
2021; Elsevier BV; Volume: 777; Linguagem: Inglês
10.1016/j.cplett.2021.138712
ISSN1873-4448
AutoresTarmizi Taher, Raden Putra, Neza Rahayu Palapa, Aldes Lesbani,
Tópico(s)Adsorption and biosorption for pollutant removal
ResumoMagnetite-nanoparticle-decorated NiFe LDH ([email protected] LDH) has been synthesized by the coprecipitation method followed by subsequent hydrothermal treatment. Material characterization was conducted using XRD, FTIR, SEM, BET surface area, and TG-DTA. [email protected] LDH exhibited high crystallinity, where the MNPs are uniformly distributed on its surface. [email protected] LDH showed higher adsorption capacity for congo red dye removal from an aqueous solution (79.6 mg/g). A further adsorption study, kinetics, isotherm, and thermodynamic indicated that the adsorption mechanism is governed by ionic interaction between the positively charged surface of the LDH and negatively charged dye molecules.
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