In:
Vietnam Journal of Catalysis and Adsorption, Vietnam Association of Catalysis and Adsorption, Vol. 12, No. 4 ( 2024-03-09), p. 62-69
Abstract:
This paper presents the results of research on the adsorption capacity of La3+ ions from aqueous solution of nanotube-type halloysite. The influence of operational conditions such as contact time, initial concentration of La3+, initial pH of solution, halloysite mass and temperature on the adsorption of La3+ had also been examined. The results show that the optimal efficiency and adsorption capacity of La3+ reached 90.19% and 3.76 mg/g in the suitable conditions: haloysite mass 0.6 g/50 mL solution, initial La3+ ion concentration 50 mg/L, pH 5.8, contact time 60 minutes at room temperature (25oC). The adsorption isotherm was studied based on both Langmuir and Freundlich models. The adsorption kinetics were studied by both pseudo-first-order and pseudo-second-order kinetic models. These results open up prospects for the application of haloysite clay minerals to remove and recover La in polluted water.
Type of Medium:
Online Resource
ISSN:
0866-7411
DOI:
10.62239/jca.2023.067
Language:
English
Publisher:
Vietnam Association of Catalysis and Adsorption
Publication Date:
2024
