A biopolymer-based hybrid cation exchanger pectin cerium(IV) iodate: synthesis, characterization, and analytical applications

Abstract

A B S T R A C TPectin cerium(IV) iodate (PcCeI) and cerium(IV) iodate (CeI) cation ion exchange materials were synthesized via sol-gel methods. The materials were characterized by using Fourier transform infrared spectroscopy, X-ray diffractometer, thermogravimetric analysis, and scanning electron microscopy. The ion exchange capacity (IEC), thermal stability, distribution coefficient (K d ), and pH titrations were investigated to recognize the cation exchange behavior of the materials. The IEC of pectin-cerium(IV) iodate (PcCeI and cerium(IV) iodate CeI were reported as 1.80 meq/g and 0.92 meq/g, respectively. The higher distribution coefficient values of 250.01 and 219.14 mg/L confirmed the selectivity of pectin-cerium(IV) iodate hybrid ion exchanger for As 3+ and Zn 2+ . The antibacterial activity of synthesized ion exchangers was explored for E. coli bacteria and observed relatively higher for PcCeI as compared to CeI.

A multifunctional nanocomposite pectin thorium(IV) tungstomolybdate for heavy metal separation and photoremediation of malachite green

“…The broad band at 3,351 cm −1 represents the water molecules present in the structure of Pc/TWM nanocomposite [29][30][31]. The peak at 1,023 cm −1 was due to C-O bond of pectin [16]. The peaks observed at 951 cm −1 may be due to molybdate, and at 798 cm −1 may be due to tungstate.…”

“…[8][9][10][11][12][13][14]. The advanced nanocomposites play a vital role in the environmental protection due to their specificity, selectivity, and a wide range of usability [15][16][17]. The efforts have been made to improve the chemical, mechanical, and thermal stabilities of composites so they can be used as a selective material for removal of heavy metal ions and dyes [18][19][20][21][22][23][24].…”

Adsorption kinetics, isotherms, and thermodynamic studies for Hg2+ adsorption from aqueous medium using alizarin red-S-loaded amberlite IRA-400 resin

“…activated carbon, nanoparticles, hydrogels, silica-based materials, kaolin-humic acids, biopolymers such as chitin and chitosan, polymeric micro-particles, and ion exchangers. [20][21][22][23][24]. The ion exchange resins have shown exceptional role in metals recovery and separation, and are widely used for pre-concentrating and heavy metal ions removal from wastewater.…”

Photocatalytic degradation of highly toxic dyes using chitosan-g-poly(acrylamide)/ZnS in presence of solar irradiation

“…Metal oxides and sulfides have possible applications in gas sensors, hydrogen-storage, piezoelectric devices, field emitters, ultraviolet lasers, solar cells and photocatalysts [17][18][19][20][21][22][23]. Polymers exhibit long term stability and possess flexible reprocess ability, so they are chosen as good host materials [24]. Composite photocatalysts shows improved photocatalytic activity due to their nanosized interfaces and microstructural properties.…”