Synthesis of Novel Lignin-Based Ion-Exchange Resin and Its Utilization in Heavy Metals Removal

Liang, Fengbing; Song, Yanlei; Huang, Chongpin; Li, Yingxia; Chen, Biaohua

doi:10.1021/ie301863e

Cited by 92 publications

(23 citation statements)

References 30 publications

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“…[154,155] Because lignin and lignosulfonates have metal-complexing capabilities, research has been done to increase their use for ion exchange. [156] The cationexchange capacity of the lignosulfonates may be applied to sensor applications, despite pH sensitivity. [99] The ion-exchange capacityw as 3.2 meq g À1 for the lignin produced by this method, whereas commercial phenol-type and sulfonatedl ignin resins had ac harged ensity in the range of 2-3 meq g À1 .…”

Section: Compositesmentioning

confidence: 99%

“…[99] Another study investigated the condensation polymerization of lignosulfonates with glucose, which resulted in an ion-exchange capacity of 4.1 mmolg À1 and as pecific surface area of 13-20 m 2 g À1 ;t he product could be used effectively to remove Cr 3 + ,C u 2 + ,N i 2 + ,P b 2 + ,a nd Cd 2 + . [156] The cationexchange capacity of the lignosulfonates may be applied to sensor applications, despite pH sensitivity. [153]…”

Section: Ion-exchange Resinsmentioning

confidence: 99%

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Production and Application of Lignosulfonates and Sulfonated Lignin

2017

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Lignin is the largest reservoir of aromatic compounds on earth and has great potential to be used in many industrial applications. Alternative methods to produce lignosulfonates from spent sulfite pulping liquors and kraft lignin from black liquor of kraft pulping process are critically reviewed herein. Furthermore, options to increase the sulfonate contents of lignin-based products are outlined and the industrial attractiveness of them is evaluated. This evaluation includes sulfonation and sulfomethylation of lignin. To increase the sulfomethylation efficiency of lignin, various scenarios, including hydrolysis, oxidation, and hydroxymethylation, were compared. The application of sulfonated lignin-based products is assessed and the impact of the properties of these products on the characteristics of their end-use application is critically evaluated. Sulfonated lignin-based products have been used as dispersants in cement admixtures and dye solutions more than other applications, and their molecular weight and degree of sulfonation were crucial in determining their efficiency. The use of lignin-based sulfonated products in composites may result in an increase in the hydrophilicity of some composites, but the sulfonated products may need to be desulfonated with an alkali and/or oxygen prior to their use in composites. To be used as a flocculant, sulfonated lignin-based products may need to be cross-linked to increase their molecular weight. The challenges associated with the use of lignin-based products in these applications are comprehensively discussed herein.

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Section: Compositesmentioning

confidence: 99%

Section: Ion-exchange Resinsmentioning

confidence: 99%

Production and Application of Lignosulfonates and Sulfonated Lignin

2017

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“…The pH of the Pb(II) solution is an important variable in the absorption of Pb(II) onto the sorbents due to the effect of sorbent on the surface charge and the degree of ionization, which affects the availability of binding sites (Bansal et al 2009;Javaid et al 2011;Liang et al 2013). Therefore, the influence of the initial pH of the solution on the adsorption of Pb(II) onto peanut shell was investigated in the pH range of 2.5 to 6.…”

Section: Effect Of Phmentioning

confidence: 99%

Adsorption of Pb(II) from Solution using Peanut Shell as Biosorbent in the Presence of Amino Acid and Sodium Chloride

Ouyang¹,

Liu²,

Wen³

2014

BioResources

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Currently, marine protein byproducts are mainly hydrolyzed and prepared for applications that depend on their physiological activity. Such uses require strict removal of heavy metal ions from the material. In this work, a green approach was proposed using peanut shells as adsorbent to remove Pb(II) from solutions containing amino acid and sodium chloride. The effects of amino acids and sodium chloride on the removal of Pb(II), as well as the influence of liquid to solid ratio, pH, temperature, and contact time on the adsorption, were studied. The results showed that the content of sodium chloride and amino acid could significantly decrease the adsorption efficiency for Pb(II). The experimental data could be described with the Langmuir adsorption isotherm model and pseudo-second order kinetic model. The adsorption capacity of the sorbent for Pb(II) was calculated from the Langmuir isotherm model and found to be 7.1 mg g -1 at pH 4.

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“…These properties offer the potential for lignin valorization . Currently, lignin is widely used in many areas, such as polyurethane, sand‐fixation agent, adsorbing material, phenolic resin, and epoxy resin . Therefore, there is no doubt that the rational utilization of the lignin resources will not only increase economic efficiency but also address the environmental issues …”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of graft copolymer from dealkaline lignin and styrene

Zhang

Gao

et al. 2015

J of Applied Polymer Sci

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Graft copolymerization of styrene onto dealkaline lignin by ferrous chloride and hydrogen peroxide coinitiator has been achieved successfully. The influence of temperature and reaction time as well as the amount of the styrene monomer, initiator, and catalyst on the grafting copolymerization was investigated. The optimum reaction conditions were determined as follows: c (styrene) 5 20.00 mmol, c (H 2 O 2 ) 5 5.00 mmol, c (FeCl 2 ) 5 0.10 mmol, T 5 30 C and t 5 48 h. The optimum yield (Y), total conversion (TC), grafting efficiency (GE), and degree grafted (DG) values were 96.6, 96.3, 59.5, and 53.7%, respectively. The copolymer of lignin grafted PS was separated and characterized by elemental analysis, differential scanning calorimetry, Fourier transform infrared, thermogravimetry analysis, field emission-scanning electron microscopy, gel permeation chromatography, and nuclear magnetic resonance. It was demonstrated that the solubility what the copolymer exhibited turned out to be the very reverse of the original lignin. The surface properties and structure of lignin were completely changed after grafting copolymerization.

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Synthesis of Novel Lignin-Based Ion-Exchange Resin and Its Utilization in Heavy Metals Removal

Cited by 92 publications

References 30 publications

Production and Application of Lignosulfonates and Sulfonated Lignin

Production and Application of Lignosulfonates and Sulfonated Lignin

Adsorption of Pb(II) from Solution using Peanut Shell as Biosorbent in the Presence of Amino Acid and Sodium Chloride

Preparation and characterization of graft copolymer from dealkaline lignin and styrene

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