Removal of copper(II) from aqueous solution using nanochitosan/sodium alginate/microcrystalline cellulose beads

Vijayalakshmi, K.; Gomathi, T.; Latha, Srinivasan; Hajeeth, T.; Sudha, P.N.

doi:10.1016/j.ijbiomac.2015.09.070

Cited by 93 publications

(28 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…As an important engineering material with wide industrial applications, excessive copper (Cu 2+ ) in the marine system has been found to damage marine life. In humans, copper toxicity leads to a neurotoxic condition known commonly as “Wilson’s disease,” which occurs as a result of the deposition of copper in the lenticular nucleus of the brain [18]. Thus, the efficient removal of Ni 2+ , Cr 6+ , and Cu 2+ from industrial wastewater is essential.…”

Section: Introductionmentioning

confidence: 99%

A Novel Exopolysaccharide with Metal Adsorption Capacity Produced by a Marine Bacterium Alteromonas sp. JL2810

et al. 2017

View full text Add to dashboard Cite

Most marine bacteria can produce exopolysaccharides (EPS). However, very few structures of EPS produced by marine bacteria have been determined. The characterization of EPS structure is important for the elucidation of their biological functions and ecological roles. In this study, the structure of EPS produced by a marine bacterium, Alteromonas sp. JL2810, was characterized, and the biosorption of the EPS for heavy metals Cu2+, Ni2+, and Cr6+ was also investigated. Nuclear magnetic resonance (NMR) analysis indicated that the JL2810 EPS have a novel structure consisting of the repeating unit of [-3)-α-Rhap-(1→3)-α-Manp-(1→4)-α-3OAc-GalAp-(1→]. The biosorption of the EPS for heavy metals was affected by a medium pH; the maximum biosorption capacities for Cu2+ and Ni2+ were 140.8 ± 8.2 mg/g and 226.3 ± 3.3 mg/g at pH 5.0; however, for Cr6+ it was 215.2 ± 5.1 mg/g at pH 5.5. Infrared spectrometry analysis demonstrated that the groups of O-H, C=O, and C-O-C were the main function groups for the adsorption of JL2810 EPS with the heavy metals. The adsorption equilibrium of JL2810 EPS for Ni2+ was further analyzed, and the equilibrium data could be better represented by the Langmuir isotherm model. The novel EPS could be potentially used in industrial applications as a novel bio-resource for the removal of heavy metals.

show abstract

Section: Introductionmentioning

confidence: 99%

A Novel Exopolysaccharide with Metal Adsorption Capacity Produced by a Marine Bacterium Alteromonas sp. JL2810

et al. 2017

View full text Add to dashboard Cite

show abstract

“…In addition, the adsorption efficiency of chitosan could be developed by converting it to nanochitosan, an advanced environmental friendly material, through ionic gelation process using sodium tripolyphosphate (Saranya et al., ). In recent years, several studies have been focused on removal of metal ions by chitosan nanoparticles, namely chromium (Chidamba, Cilliers, & Bezuidenhout, ; Sivakami et al., ), zinc (Seyedmohammadi, Motavassel, Maddahi, & Nikmanesh, ), arsenic (Kwok, Koong, Chen, & McKay, ), and copper (Vijayalakshmi, Gomathi, Latha, Hajeeth, & Sudha, ). Despite the multiple advantages related to their small size and large surface area, which ideally increases the adsorption efficiency, it is difficult to eliminate these nanoparticles from treated solution due to their fine size (Zhao et al., ).…”

Section: Introductionmentioning

confidence: 99%

“…Recently, some studies showed that the use of nanostructured hybrid beads as adsorbent has drawn a considerable attention, due to their exceptional adsorption performance. Among these, we found poly (maleic acid)‐grafted cross‐linked chitosan nanomaterial (Ge & Hua, ), nanochitosan/sodium alginate/microcrystalline cellulose (Vijayalakshmi et al., ), polyaniline graft chitosan (Igberase, Osifo, & Ofomaja, ), and chitosan–zeolite composites (Wan Ngah, Teong, Toh, & Hanafiah, ).…”

Section: Introductionmentioning

confidence: 99%

Uptake of Pb(II) onto nanochitosan/sodium alginate hybrid beads: Mechanism and kinetics study

Ablouh

Essaghraoui

Eladlani

et al. 2019

Water Environment Research

View full text Add to dashboard Cite

Nanochitosan/sodium alginate (NCS/SA) beads were prepared using nanochitosan and alginate as a high-performance absorbent for Pb(II) removal from aqueous solution. The morphology, structure, thermal stability, surface area, and elements present in the NCS/SA beads before and after adsorption were characterized using instrumental techniques like SEM, FTIR, TGA, BET, and EDX analysis, respectively. Various adsorption parameters were studied. The results indicated that the equilibrium adsorption data were fitted to Langmuir isotherms and the maximum Langmuir monolayer capacity of Pb(II) was 178.57 mg/g at 45°C. The adsorption process was in good agreement with pseudo-first-order kinetic model. Mechanism studies showed that electrostatic interaction and ion exchange were the major mechanisms for lead (II) removal by the NCS/SA beads. The results of this study indicate that NCS/SA beads could be used as an effective adsorbent for the elimination of lead (II) present in aqueous solution. • Practitioner points• Nanochitosan/sodium alginate beads were synthesized using Ca 2+ as a crosslinking agent. • NCS/SA beads were used to remove Pb(II) for the first time and working parameters were optimized. • Adsorption monolayer capacity of NCS/SA adsorbent towards Pb (II) was found to be 178.57 mg/g.

show abstract

“…Calcium alginate has been reported as an efficient adsorbent for removal of divalent metal ions from contaminated waters . Alginate beads and their composites with metal oxides have frequently been used as green adsorbents for heavy metal remediation . The porosity of calcium alginate allows solutes to diffuse into the beads and thus to contact trapped oxide particles .…”

Section: Introductionmentioning

confidence: 99%

“…10 Alginate beads and their composites with metal oxides have frequently been used as green adsorbents for heavy metal remediation. [11][12][13][14] The porosity of calcium alginate allows solutes to diffuse into the beads and thus to contact trapped oxide particles. 15 Moreover, alginate is nontoxic, biodegradable, and nonimmunogenic and produces thermally irreversible and water-insoluble gels.…”

Section: Introductionmentioning

confidence: 99%

Development of hybrid adsorbent for effective aqueous phase sorptive removal of copper

Kumar

Kim

et al. 2018

Surface & Interface Analysis

View full text Add to dashboard Cite

Alginate beads (ABs) immobilized with hydrous zirconium oxide (ZO) were used as a hybrid adsorbent (ZO@AB) for the effective removal of copper ions [Cu(II)] from aqueous phase. ZO@AB was characterized using X‐ray photoelectron spectroscopy to confirm the impregnation of ABs with ZO and the adsorption of Cu(II) onto ZO@AB. The maximum equilibrium sorption capacity of ZO@AB for Cu(II) was 63.1 mg·g−1 at pH 5. The Cu(II) removal rate was high at the beginning of reaction, with >90% adsorption within 24 hours, and equilibrium was achieved within 48 hours. The adsorption of Cu(II) onto ZO@AB was well described by pseudo‐second‐order kinetic model (R2 > 0.99), and the monolayer nature of sorption was supported by the Langmuir model (R2 > 0.99). The sorption process was endothermic, favorable, and spontaneous in nature. Regarding the reusability of the adsorbent, its sorption capacity remained satisfactory (>90%) throughout the 5 consecutive cycles (regeneration in 0.1 mol·L−1 HCl). The stoichiometric ratio of released calcium ions [Ca(II)] to adsorbed copper ions [Cu(II)] was approximately 1:1, confirming that ion exchange was the main mechanism for removal of Cu(II) from aqueous phase. The developed adsorbent (ZO@AB) shows promise as a candidate for the effective and selective removal of Cu(II) from aqueous phase.

show abstract

Removal of copper(II) from aqueous solution using nanochitosan/sodium alginate/microcrystalline cellulose beads

Cited by 93 publications

References 41 publications

A Novel Exopolysaccharide with Metal Adsorption Capacity Produced by a Marine Bacterium Alteromonas sp. JL2810

A Novel Exopolysaccharide with Metal Adsorption Capacity Produced by a Marine Bacterium Alteromonas sp. JL2810

Uptake of Pb(II) onto nanochitosan/sodium alginate hybrid beads: Mechanism and kinetics study

Development of hybrid adsorbent for effective aqueous phase sorptive removal of copper

Contact Info

Product

Resources

About