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Novel porous organic triazine‐based polyimide with high nitrogen levels for highly efficient removal of Ni(II) from aqueous solution
Author(s) -
Mokhtari Nazanin,
Dinari Mohammad,
Rahmanian Omid
Publication year - 2019
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.5810
Subject(s) - aqueous solution , adsorption , sorption , langmuir adsorption model , fourier transform infrared spectroscopy , polyimide , triazine , materials science , nitrogen , nuclear chemistry , chemistry , polymer chemistry , chemical engineering , organic chemistry , layer (electronics) , nanotechnology , engineering
In this study, a porous organic triazine‐based polyimide (PPI network) was prepared from 2,4,6‐tris(hydrazino)‐ s ‐triazine and 3,4,9,10‐perylenetetracarboxylic dianhydride. TGA, Fourier transform infrared spectroscopy, field emission SEM, XRD and a nitrogen sorption study confirmed the PPI network structure. Then, the synthesized PPI network was used to evaluate Ni 2+ ion removal from aqueous solution and the effective parameters on adsorption functions of Ni 2+ ions such as initial concentration, contact time and pH of the solution in batch adsorption experiments was studied. The results showed that the maximum adsorption capacity ( q m ) of Ni 2+ ions was 36.1 mg g −1 in only 30 min with a pH of 7. The kinetics and adsorption isotherm were identified to be better fitted by the pseudo‐second‐order model and the Langmuir model, respectively. Based on the results, the proposed adsorbent has good potential for removing Ni 2+ ions from aqueous solutions. © 2019 Society of Chemical Industry