Optimization of Xanthan Gum/Poly(acrylic acid)/Cloisite 15A Semi-IPN Hydrogels for Heavy Metals Removal

Esmaeildoost, Fatemeh; Shahrousvand, Mohsen; Goudarzi, Alireza; Bagherieh‐Najjar, Mohammad B.

doi:10.1007/s10924-022-02501-6

Cited by 16 publications

(8 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…that present effective chelating sites or ion-exchange groups. Among the HMIs, the most scrutinized have been Cu(II) [ 43 , 76 , 77 , 78 , 79 , 80 , 81 , 82 ], Ni(II) [ 76 , 78 , 81 ], Cd(II) [ 42 , 44 , 76 , 79 , 82 ], Pb(II) [ 79 , 80 , 82 , 83 , 84 ], and Hg(II) [ 84 , 85 ].…”

Section: Polysaccharide-based Composite Hydrogels Applied In Wastewat...mentioning

confidence: 99%

“…The shifts of the main bands in the FTIR spectra of the sorbents loaded with Cu(II) and Ni(II) revealed that these composite hydrogels had a higher affinity for Cu(II) ions than for Ni(II) ions [ 78 ]. Semi-IPN hydrogels consisting of XG entrapped in a poly(acrylic acid) (PAA) network have been effective in the adsorption of Cu(II), Ni(II), and Co(II) ions, the order of the adsorption capacity being Cu(II) (530.14 mg/g) > Ni(II) (511.74 mg/g) > Co(II) (436.62 mg/g) [ 81 ].…”

Section: Polysaccharide-based Composite Hydrogels Applied In Wastewat...mentioning

confidence: 99%

See 1 more Smart Citation

Polysaccharide-Based Composite Hydrogels as Sustainable Materials for Removal of Pollutants from Wastewater

Ghiorghiță¹,

Dinu²,

Lazăr³

et al. 2022

Molecules

View full text Add to dashboard Cite

Nowadays, pollution has become the main bottleneck towards sustainable technological development due to its detrimental implications in human and ecosystem health. Removal of pollutants from the surrounding environment is a hot research area worldwide; diverse technologies and materials are being continuously developed. To this end, bio-based composite hydrogels as sorbents have received extensive attention in recent years because of advantages such as high adsorptive capacity, controllable mechanical properties, cost effectiveness, and potential for upscaling in continuous flow installations. In this review, we aim to provide an up-to-date analysis of the literature on recent accomplishments in the design of polysaccharide-based composite hydrogels for removal of heavy metal ions, dyes, and oxyanions from wastewater. The correlation between the constituent polysaccharides (chitosan, cellulose, alginate, starch, pectin, pullulan, xanthan, salecan, etc.), engineered composition (presence of other organic and/or inorganic components), and sorption conditions on the removal performance of addressed pollutants will be carefully scrutinized. Particular attention will be paid to the sustainability aspects in the selected studies, particularly to composite selectivity and reusability, as well as to their use in fixed-bed columns and real wastewater applications.

show abstract

Section: Polysaccharide-based Composite Hydrogels Applied In Wastewat...mentioning

confidence: 99%

Section: Polysaccharide-based Composite Hydrogels Applied In Wastewat...mentioning

confidence: 99%

Polysaccharide-Based Composite Hydrogels as Sustainable Materials for Removal of Pollutants from Wastewater

Ghiorghiță¹,

Dinu²,

Lazăr³

et al. 2022

Molecules

View full text Add to dashboard Cite

show abstract

“…Inorganic fillers in cross-linked polymers, such as clay material, can lend biopolymer-specific chemical and physical properties and minimize chain mobility. Esmaeildoost et al [ 107 ] attempted to modify a xanthan/poly acrylic acid-based composite hydrogel with Cloisite 15A nanoclay to improve its rheological and swelling properties. Besides increasing the porosity of the novel adsorbent, it also improved polymers’ affinities towards cobalt(II), copper(II), and nickel(II) in neutral aqueous solution with sorption capacities of 436.6, 530.1, and 511.7 mg·g −1 , respectively.…”

Section: Immobilization Of Heavy Metals By Native and Modified Xantha...mentioning

confidence: 99%

Prospects of Biogenic Xanthan and Gellan in Removal of Heavy Metals from Contaminated Waters

et al. 2022

View full text Add to dashboard Cite

Biosorption is considered an effective technique for the treatment of heavy-metal-bearing wastewaters. In recent years, various biogenic products, including native and functionalized biopolymers, have been successfully employed in technologies aiming for the environmentally sustainable immobilization and removal of heavy metals at contaminated sites, including two commercially available heteropolysaccharides—xanthan and gellan. As biodegradable and non-toxic fermentation products, xanthan and gellan have been successfully tested in various remediation techniques. Here, to highlight their prospects as green adsorbents for water decontamination, we have reviewed their biosynthesis machinery and chemical properties that are linked to their sorptive interactions, as well as their actual performance in the remediation of heavy metal contaminated waters. Their sorptive performance in native and modified forms is promising; thus, both xanthan and gellan are emerging as new green-based materials for the cost-effective and efficient remediation of heavy metal-contaminated waters.

show abstract

“…Lower desorption efficiency in adsorption/desorption cycles may be occurred due to several reasons, [85][86][87] including (i) a decrease in the surface area due to saturation of some available binding sites caused by incomplete desorption of adsorbed AO-10 dye and Cr(VI) from the CMX-5; (ii) some heterogeneity exists on the copolymer surface and strong interaction is possible between adsorbate and some binding sites with higher energy; and (iii) mass loss of the adsorbent may occur due to deformation during the rinsing process. SEM supported this explanation and EDX data, as shown in Figure 10a,b.…”

Section: Desorptionmentioning

confidence: 99%

Highly reactive adsorbent based on carboxymethyl xanthan gum‐g‐poly(4‐vinylpyridine) copolymer for the potential removal of Acid Orange 10 dye and Cr(VI) ions for water treatment

Elgamal

El‐Ghany

Saad

2022

J of Applied Polymer Sci

View full text Add to dashboard Cite

The removal efficiency of an anionic acid dye, Acid Orange 10 dye (AO-10), and hexavalent chromium metal Cr(VI) from an aqueous medium using carboxymethyl xanthan gum-g-poly(4-vinyl pyridine), CMX-g-P(4VP), as a novel adsorbent was studied. The influences of pH, adsorbent dose, temperature, and equilibrium time on the adsorption process were evaluated to optimize the conditions for maximum removal of the adsorbate. Both AO-10 and Cr(VI) removal were pH-dependent, with the most excellent adsorption capacity occurring at pH 2.5. AO-10 and Cr(VI) had maximum adsorption capacities of 1961 and 492 mg g À1 , respectively, considerably high. The adsorbent may be efficiently reused for five cycles, according to the desorption studies. The experimental adsorption equilibrium data were described using the Langmuir, Freundlich and Dubinin-Radushkevich isotherm models. The Langmuir is judged the closest to the description of the practical. In addition, the kinetics of the adsorption process is controlled using pseudo-first-order and intraparticle diffusion kinetic models, while the thermodynamic process proved the spontaneous and exothermic nature of removing AO-10 and Cr(VI) ions. Overall, the results showed that CMX-g-P(4VP) might be a very efficient re-usable adsorbent in wastewater treatment.

show abstract

Optimization of Xanthan Gum/Poly(acrylic acid)/Cloisite 15A Semi-IPN Hydrogels for Heavy Metals Removal

Cited by 16 publications

References 45 publications

Polysaccharide-Based Composite Hydrogels as Sustainable Materials for Removal of Pollutants from Wastewater

Polysaccharide-Based Composite Hydrogels as Sustainable Materials for Removal of Pollutants from Wastewater

Prospects of Biogenic Xanthan and Gellan in Removal of Heavy Metals from Contaminated Waters

Highly reactive adsorbent based on carboxymethyl xanthan gum‐g‐poly(4‐vinylpyridine) copolymer for the potential removal of Acid Orange 10 dye and Cr(VI) ions for water treatment

Contact Info

Product

Resources

About