Adsorptive removal of heavy metal ions using polystyrene-poly(N-isopropylmethacrylamide-acrylic acid) core/shell gel particles: Adsorption isotherms and kinetic study

Copper and nickel removal from aqueous solutions using functionalized polyacrylonitrile fibers: equilibrium, kinetic, and thermodynamic studies

“…The last section is assigned to the attainment of equilibrium adsorption. The results are in concordance with previous researches [37,39]. The intra-particle diffusion constant in every section of the plots follows the order k id1 > k id2 > k id3 demonstrating that adsorption was maximal in the first cycle due to the availability of active sites on the adsorbent surface.…”

“…Additionally, copper present a higher adsorption capacity than nickel. Concerning the intra-particle diffusion model, the plot of q t vs. t 1/2 illustrated the multi-linearity correlations [37]. For Cu(II) and Ni(II) adsorption, three sections were produced for adsorption of Cu(II) and Ni(II) onto AO-PANF.…”

Fundamentals and applications of acrylamide based microgels and their hybrids: a review

“…For example biocompatibility and biodegradability of P(NIPAM-Am) and P(NIPAM-Am-IM) polymer microgels should be studied in detail to practically apply them in biomedical eld. Various polymer based materials have been reported for environmental applications to extract/ degrade toxic substances [94][95][96][97][98][99][100][101][102][103][104] but this aspect of P(NIPAM-Am) and P(NIPAM-Am-IM) microgels has been rarely explored in literature. Silver nanoparticles loaded polymeric material has been extensively reported for antibacterial applications [105][106][107] but antibacterial behavior of silver nanoparticles loaded in P(NIPAM-Am) and P(NIPAM-Am-IM) microgels may be a subject of future studies in this area.…”

Fabrication of recoverable magnetic composite material based on graphene oxide for fast removal of lead and cadmium ions from aqueous solution

“…Various techniques and methods have been developed for the removal of heavy metal ions from wastewater, such as chemical precipitation, 5 electrochemical process, 6 ion exchange, 7 solvent extraction, 8 catalytic reduction, 9 adsorption, etc 10,11 . Among them, adsorption is regarded as one of the most advantageous analytical methods due to its high enrichment factor, easy operation, lower cost, high efficiency and facile combination with other modern detection techniques 12,13 .…”