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Synthesis of a MnO 2 /multiwalled carbon nanotube nanocomposite and its application as a sorbent for removing Cu 2+ ions from aqueous media
Author(s) -
Mohammadkhani Shima,
Aghaie Mehran
Publication year - 2019
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.201800361
Subject(s) - sorbent , chemistry , nanocomposite , aqueous solution , freundlich equation , langmuir , nanotube , adsorption , chemical engineering , ion , manganese , carbon nanotube , inorganic chemistry , nuclear chemistry , organic chemistry , engineering
In this research, a manganese dioxide/multiwalled carbon nanotube (MnO 2 /MWCNT) was firstly synthesized and characterized and then was applied as an effective sorbent for removing Cu 2+ ions from aqueous solution. The effects of initial concentration, temperature, contact time, pH solution, and sorbent dosage were investigated and the optimum value of each was determined. The Langmuir isotherm model, Freundlich model, and Temkin model were used to fit our experimental results. Ultimately, using the Van't Hoff approach, the thermodynamic functions of the intended adsorption phenomenon such as ΔH° ad , ΔS° ad , and ΔG° ad were estimated.