Thiol-ene synthesis of thioether/carboxyl-functionalized polymers for selective adsorption of silver (I) ions

Huang, Yuming; Zhao, Wenchao; Zhang, Xiong; Peng, Hong; Gong, Yuefa

doi:10.1016/j.cej.2019.121935

Cited by 43 publications

(18 citation statements)

References 49 publications

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“…Lignin was obtained from bamboo feedstock based on acetic acid treatment, and the total content of hydroxyl groups (-OH) was determined to be 2.9 mmol g À1 through quantitative 31…”

Section: Materials and Chemicalsmentioning

confidence: 99%

Efficient and selective removal of Pb(ii) from aqueous solution by a thioether-functionalized lignin-based magnetic adsorbent

et al. 2022

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“…Lignin was obtained from bamboo feedstock based on acetic acid treatment, and the total content of hydroxyl groups (-OH) was determined to be 2.9 mmol g À1 through quantitative 31…”

Section: Materials and Chemicalsmentioning

confidence: 99%

Efficient and selective removal of Pb(ii) from aqueous solution by a thioether-functionalized lignin-based magnetic adsorbent

et al. 2022

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“…The adsorption capacity of L@MNP toward heavy metal ions was calculated using Eq. 1 [27]: (1) where q e (mg/g) is the adsorption amount of metal ions on L@MNP at equilibrium, C 0 (mg/L) and C e (mg/L) the initial concentration and the equilibrium concentration of metal ions, respectively; V (L) the volume of solution, and m (g) the dosage of the adsorbent. All adsorption amounts were the average of two experiments, and the error was less than 5%.…”

Section: Adsorption Measurementsmentioning

confidence: 99%

Fabrication of Lignin-based Magnetic Adsorbent via Thiol-ene Click Reaction for the Effective Removal of Pb(II)

Zhou

Liu

Jin

et al. 2021

Preprint

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The effective and selective removal of heavy metal ions from sewage is a major challenge, and of great significance to the treatment and recovery of metal waste. Herein, a novel magnetic lignin-based adsorbent L@MNP was synthesized by thiol-ene click reaction under UV light irradiation. Multiple characterization techniques containing FT-IR, XRD, elemental analysis, VSM, SEM and TEM confirmed the formed nano-morphology and structure of L@MNP. Effects of pH, contact time, initial metal concentration and temperature on the batch adsorption of Pb(II) by L@MNP were investigated. Due to the existence of sulfur and oxygen containing sites, the maximum adsorption capacity of L@MNP for Pb(II) could reach 97.38 mg/g, while the adsorption equilibrium was achieved within 30 min. Adsorption kinetics and isotherms were well described by the pseudo-second-order model and Langmuir model, respectively, suggesting a chemical and monolayer adsorption process. In addition, L@MNP showed a high adsorption selectivity (kPb = 0.903) toward Pb(II) in the presence of other co-existing metal ions. Experimental results also revealed that L@MNP displayed structural stability, easy recovery under external magnetic field, and acceptable recyclability after the fifth cycle. Considering its facile preparation, low cost and high adsorption efficiency, the developed L@MNP adsorbent demonstrated great potential in removing heavy metal ions from wastewater.

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“…Besides, the research and development of new adsorbents, with a high capacity for adsorption, abundant, economically profitable, and effective for treating wastewater is a great challenge. Thus, in recent years, a great importance has been attached to functionalized polymers because of their low cost and high capacity to adsorption different pollutants, especially the possibility of their regeneration (7)(8)(9).…”

Section: Introductionmentioning

confidence: 99%

Equilibrium, Kinetic Data, and Adsorptıon Mechanism for Lead Adsorptıon onto Polyacrylamıde Hydrogel

Lebkiri

Abbou

Kadiri³

et al. 2021

Journal of the Turkish Chemical Society Section A: Chemistry

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The present study focuses on the effect of experimental parameters (pH, temperature, gel mass, metal concentration, contact time) on the performance of lead adsorption by polyacrylamide hydrogels. The results obtained showed that the retention of Pb 2+ ions is closely linked to these parameters. The adsorbent gels equilibrate with the metal solution after 180 minutes, and the maximum adsorption capacity is 442.31 mg/g. In addition, the adsorption obeys the pseudo-second-order kinetics and Langmuir isotherm. Desorption of the micropollutant retained by the hydrogel was also studied using 0.1 M of HCl solution. The desorption was rapid, and the efficiency exceeded 90% after a contact time of 90 minutes.

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Thiol-ene synthesis of thioether/carboxyl-functionalized polymers for selective adsorption of silver (I) ions

Cited by 43 publications

References 49 publications

Efficient and selective removal of Pb(ii) from aqueous solution by a thioether-functionalized lignin-based magnetic adsorbent

Efficient and selective removal of Pb(ii) from aqueous solution by a thioether-functionalized lignin-based magnetic adsorbent

Fabrication of Lignin-based Magnetic Adsorbent via Thiol-ene Click Reaction for the Effective Removal of Pb(II)

Equilibrium, Kinetic Data, and Adsorptıon Mechanism for Lead Adsorptıon onto Polyacrylamıde Hydrogel

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