Development of chitosan supported zirconium(IV) tungstophosphate composite for fluoride removal

A dendrimer-like hyper branched chitosan beads toward fluoride adsorption from water

“…The adsorption capacities of the Zr-PAAGCB for the removal of fluoride have been compared with those of other chitosan based sorbents reported in literature [55][56][57][58][59][60][61][62][63][64][65] (Table 3). The higher q value varies and depends on the characteristics of the individual adsorbent, the extent of surface/surface modification, pH and the initial concentration of the adsorbate.…”

Fluoride removal from water by chitosan derivatives and composites: A review

“…TISAB (III) solution was used as a buffer for maintaining the pH and background ion concentrations [43][44][45][46][47][48][49][50][51][52][53][54][55][56][66][67][68][69][70]74,75]. Also fluoride concentration determination was carried on using zirconyl-SPADNS dye and UV-Vis spectrophotometer (EPA 340.1 method) by Kamble et al [42].…”

“…A new biocomposite was prepared by incorporating Zr (IV) tungstophosphate, an inorganic ion exchanger into chitosan biopolymeric matrix [54]. The adsorption of F À ions on this biocomposite was investigated by batch technique.…”

“…Different mineral materials as hydroxyapatite, binary metal oxides, magnesia, hydrotalcite, alumina, rare earth metals, etc. have been supported on chitosan resulting in inorganic composites with high F removal capacity [42][43][44][45][46][47][48][49][50][51][52][53][54][55][56] etc.…”

Ion Exchange Kinetics of Heavy Metal Ions on Organic–Inorganic Composite Cation Exchanger Poly-o-toluidine Zr(IV) Tungstate

“…Due to improved performance, composite ion exchange materials have been extensively used in environmental remediation, analytical and electroanalytical processes such as waste water treatment, separation of metal ions, catalysis, polymer electrolyte membrane fuel cells and gas perm-selectivity [8][9][10][11][12][13][14]. However, to understand the theoretical aspect of application to validate the method prior to the expensive and time-consuming experimental procedures, information related to ion exchange kinetics and the mobility of counter ions in the lattice structure of ion exchange materials is required.…”