Preparation of Biomass Carbon Composites MgO@ZnO@BC and Its Adsorption and Removal of Cu(II) and Pb(II) in Wastewater

Autor:	Jie Yang, Qing Wei, Changan Tian, Dong Li, Hongming Li, Guangchao Qin, Kunhong Hu, Qinyan Zhang
Jazyk:	angličtina
Rok vydání:	2023
Předmět:	composite materials metal oxide adsorption heavy metal simulation Organic chemistry QD241-441
Zdroj:	Molecules, Vol 28, Iss 19, p 6982 (2023)
Druh dokumentu:	article
ISSN:	1420-3049
DOI:	10.3390/molecules28196982
Popis:	The ternary composite MgO@ZnO@BC was synthesized and characterized for the adsorption of Cu2+, Pb2+ heavy metal ions from wastewater. The results show that the addition of the MgO@ZnO@BC composite results in higher adsorption properties for Cu2+ and Pb2+, with a molar ratio of 5% 0.1 g, and maximum adsorption capacity (50.63 mg/g for Cu2+ and 61.46 mg/g for Pb2+). The Langmuir adsorption isotherm of the adsorption complex and the kinetics of adsorption are secondary kinetics. The adsorption of Cu2+ and Pb2+ was mainly chemisorption, accompanied by physical adsorption. This adsorption method fully conforms to the concepts of clean production and efficient waste utilization, providing a reference for the removal of heavy metal ions from wastewater and waste recycling using ternary composite materials.
Databáze:	Directory of Open Access Journals
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