Biosorption of lead from aqueous solutions by ion-imprinted tetraethylenepentamine modified chitosan beads

Liu, Bingjie; Chen, Wei; Peng, Xiaoning; Cao, Qiqi; Wang, Qianrui; Wang, Dongfeng; Meng, Xia; Yu, Guangli

doi:10.1016/j.ijbiomac.2016.01.100

Cited by 62 publications

(16 citation statements)

References 62 publications

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“…For example, the most favourable pH values for both Na–X and Na–X–CS were 5.0 and 6.0, respectively. Analogous results were described in Liu et al. (2016) and they are connected with sorption on low-cost sorbents modified by CS.…”

Section: Resultssupporting

confidence: 70%

“…For example, the most favourable pH values for both Na-X and Na-X-CS were 5.0 and 6.0, respectively. Analogous results were described in Liu et al (2016) and they are connected with sorption on low-cost sorbents modified by CS. It should be noted that also for the mixture of Cu(II), Fe(III), Mn(II) and Zn(II) ions it was found that at pH 2.0 only 20% of Cu(II), 8.67% of Fe(III), 6.12% of Mn(II) and 3.32% of Zn(II) were sorbed.…”

Section: Sorption Experimentssupporting

confidence: 70%

See 1 more Smart Citation

Modified fly ash and zeolites as an effective adsorbent for metal ions from aqueous solution

Hałas

Kołodyńska

Płaza

et al. 2017

Adsorption Science & Technology

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Section: Resultssupporting

confidence: 70%

Section: Sorption Experimentssupporting

confidence: 70%

Modified fly ash and zeolites as an effective adsorbent for metal ions from aqueous solution

Hałas

Kołodyńska

Płaza

et al. 2017

Adsorption Science & Technology

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“…One of the major potential substances is the chitosan, a well-known biopolymer derived from alkaline N -deacetylation of chitin [9], which can surpass its natural limitations in aqueous media throughout targeted modifications, driving to enhance its adsorption properties as well as its selectivity for targeted ions and mechanical properties. Several chitosan-based materials have been reported to provide excellent sorption of Hg(II) and Pb(II) [10,11,12,13]. Although, many reported chitosan-composite materials have shown excellent performance in terms of sorption capacity, several limitations make the industrial scaling-up difficult.…”

Section: Introductionmentioning

confidence: 99%

Sorption of Hg(II) and Pb(II) Ions on Chitosan-Iron(III) from Aqueous Solutions: Single and Binary Systems

et al. 2018

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The present work describes the study of mercury Hg(II) and lead Pb(II) removal in single and binary component systems into easily prepared chitosan-iron(III) bio-composite beads. Scanning electron microscopy and energy-dispersive X-ray (SEM-EDX) analysis, Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA) and point of zero charge (pHpzc) analysis were carried out. The experimental set covered pH study, single and competitive equilibrium, kinetics, chloride and sulfate effects as well as sorption–desorption cycles. In single systems, the Langmuir nonlinear model fitted the experimental data better than the Freundlich and Sips equations. The sorbent material has more affinity to Hg(II) rather than Pb(II) ions, the maximum sorption capacities were 1.8 mmol·g−1 and 0.56 mmol·g−1 for Hg(II) and Pb(II), respectively. The binary systems data were adjusted with competitive Langmuir isotherm model. The presence of sulfate ions in the multicomponent system [Hg(II)-Pb(II)] had a lesser impact on the sorption efficiency than did chloride ions, however, the presence of chloride ions improves the selectivity towards Hg(II) ions. The bio-based material showed good recovery performance of metal ions along three sorption–desorption cycles.

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“…The main sources of the Pb 2+ pollution are battery manufacturing industry, shooting ranges, paint industries, mining processes, chemical manufacturers, surfactants, preservatives, etc. (Xu et al 2013;Liu et al 2016;Laidlaw et al 2017;Mehmood et al 2017). The removal of Pb 2+ from wastewater is accomplished by various conventional techniques like precipitation with hydroxide ion or lime, ion exchange, coagulation, electrochemical process, reverse osmosis and ion flotation (Wang and Chen 2009;Kong et al 2014;Ehrampoush et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Kinetic study of lead (Pb2+) removal from battery manufacturing wastewater using bagasse biochar as biosorbent

2018

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Agricultural waste of bagasse was employed for investigating its lead (Pb 2+) removal potential from wastewater of battery manufacturing industry. To optimize maximum removal efficacy of the bagasse, it was thermally modified in the form of biochar. Adsorption kinetics and mechanism including various parameters (contact time, dose and pH) were studied employing biochar prepared from bagasse waste. The optimum adsorption occurred at pH 5 with 140 min. of contact time utilizing 5 g of adsorbent dosage at room temperature (25 ± 3 °C). The maximum removal efficiency was recorded as 12.741 mg g −1 with 75.376% of removal at optimum pH 5 as compared to the initial concentration in the effluent. The result illustrated the most suitable fit was for Langmuir isotherm with monolayer and homogenous adsorption of Pb 2+. The kinetics involved in the process was observed to be pseudo-second-order, which indicates chemisorption as a major phenomenon involved in the process. The characterization of the adsorbent biochar was done by SEM, EDX and FTIR analysis that provided details about ultrastructural and functionality of organic moiety present to have porous and rough surface, favoring the adsorption process. The functional groups identified by the FTIR analysis demonstrated involvement of carboxyl groups in Pb 2+ binding. Postadsorption elution of metal-loaded bagasse was executed by 0.1 M HNO 3 with about 90% of regeneration.

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Biosorption of lead from aqueous solutions by ion-imprinted tetraethylenepentamine modified chitosan beads

Cited by 62 publications

References 62 publications

Modified fly ash and zeolites as an effective adsorbent for metal ions from aqueous solution

Modified fly ash and zeolites as an effective adsorbent for metal ions from aqueous solution

Sorption of Hg(II) and Pb(II) Ions on Chitosan-Iron(III) from Aqueous Solutions: Single and Binary Systems

Kinetic study of lead (Pb2+) removal from battery manufacturing wastewater using bagasse biochar as biosorbent

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