A Novel Biosorbent From Hardwood Cellulose Nanofibrils Grafted With Poly(m-Aminobenzene Sulfonate) for Adsorption of Cr(VI)

Yu, Yongping; An, Liangliang; Bae, Jin Ho; Heo, Jeongwon; Chen, Jiansong; Jeong, Hanseob; Kim, Yong Sik

doi:10.3389/fbioe.2021.682070

Cited by 18 publications

(4 citation statements)

References 49 publications

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“…The peaks at around 3400 cm − 1 were attributed to hydroxyl groups (O─H) in phenolic and aliphatic groups; The peaks at 2933 were associated to be C─H groups in methylene, methenyl and methyl groups. The peaks at 1600, 1513, and 1454 cm − 1 were attributed to aromatic stretching [44]. Distinct differences were observed after lignin modi cation.…”

Section: Chemical Structures Of Als and L-sbmentioning

confidence: 98%

Facile synthesis of lignin Schiff base-copper complex as a catalyst for methylene blue and 4- nitrophenol removal

Chen

Heo

Kim

et al. 2023

Preprint

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Recently, biopolymer-based catalysts have been reported frequently due to the advantages of biodegradability, highly efficiency, and low cost. In this work, novel catalyst lignin Schiff base-copper complex (L-SB-Cu) was synthesized, and this catalyst was used for methylene blue (MB) and 4-nitrophenol (4-NP) reduction in aqueous solutions. The results of characterization from elemental analysis, Fourier-transform infrared spectroscopy (FT-IR), gel permeation chromatography (GPC), and proton nuclear magnetic resonance (1H NMR) proved that lignin Schiff base (L-SB) was synthesized successfully. X-ray photoelectron spectroscopy (XPS), and EDS-mapping proved that copper ions was coordinated with L-SB, thus forming L-SB-Cu catalyst. The catalyst showed highly catalytic reduction ability towards organic pollutants MB and 4-NP with sodium borohydride (NaBH4) as a reducing agent even after three times of recycling. The catalyst ability of reducing MB and 4-NP was evaluated by UV-Vis spectroscopy, and the mechanisms were explored. This work showed a new strategy of utilizing bio-based material as a highly efficiency catalyst to degrade organic pollutants.

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Section: Chemical Structures Of Als and L-sbmentioning

confidence: 98%

Facile synthesis of lignin Schiff base-copper complex as a catalyst for methylene blue and 4- nitrophenol removal

Chen

Heo

Kim

et al. 2023

Preprint

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“…It can be extracted from wood and annual plants, microbes (bacteria and algae) and animals (tunicates) [ 60 , 61 ]. Different extraction methods result in the varied physical forms of cellulose, such as mats [ 56 ], hydrogels [ 62 ], foam [ 63 ], nanocrystals [ 64 ], and nanofibrils [ 65 ]. Rich in hydroxyl groups, cellulose shows high affinity toward heavy metals and offers suitable platform for functionalization [ 66 , 67 ].…”

Section: Polymers Used For Cr(vi) Removalmentioning

confidence: 99%

“…There is no doubt that Cr(VI) removal increases with the rise of the adsorbents dosage [ 65 ]. A higher dosage of the adsorbents can provide more active sites to react and adsorb Cr(VI) [ 138 ].…”

Section: Factors Affecting Cr(vi) Removalmentioning

confidence: 99%

Advances in Sorptive Removal of Hexavalent Chromium (Cr(VI)) in Aqueous Solutions Using Polymeric Materials

Yuan

Luo

et al. 2023

Polymers

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Sorptive removal of hexavalent chromium (Cr(VI)) bears the advantages of simple operation and easy construction. Customized polymeric materials are the attracting adsorbents due to their selectivity, chemical and mechanical stabilities. The mostly investigated polymeric materials for removing Cr(VI) were reviewed in this work. Assembling of robust functional groups, reduction of self-aggregation, and enhancement of stability and mechanical strength, were the general strategies to improve the performance of polymeric adsorbents. The maximum adsorption capacities of these polymers toward Cr(VI) fitted by Langmuir isotherm model ranged from 3.2 to 1185 mg/g. Mechanisms of complexation, chelation, reduction, electrostatic attraction, anion exchange, and hydrogen bonding were involved in the Cr(VI) removal. Influence factors on Cr(VI) removal were itemized. Polymeric adsorbents performed much better in the strong acidic pH range (e.g., pH 2.0) and at higher initial Cr(VI) concentrations. The adsorption of Cr(VI) was an endothermic reaction, and higher reaction temperature favored more robust adsorption. Anions inhibited the removal of Cr(VI) through competitive adsorption, while that was barely affected by cations. Factors that affected the regeneration of these adsorbents were summarized. To realize the goal of industrial application and environmental protection, removal of the Cr(VI) accompanied by its detoxication through reduction is highly encouraged. Moreover, development of adsorbents with strong regeneration ability and low cost, which are robust for removing Cr(VI) at trace levels and a wider pH range, should also be an eternally immutable subject in the future. Work done will be helpful for developing more robust polymeric adsorbents and for promoting the treatment of Cr(VI)-containing wastewater.

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“…The dosage is a vital parameter for determining the adsorption capacity of ALs (Yu et al 2021). The amounts of Cd(II) and Pb(II) ions removed at different adsorbent dosages are presented in Figs.…”

Section: Operational Parameters Of the Metal Ion Adsorptionmentioning

confidence: 99%

Application of three types of aminated lignins for efficient removal of Cd(II) and Pb(II) ions in aqueous solution

Heo

Chen

et al. 2022

BioRes

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Lignin is a renewable natural aromatic polymer that is generated as a co-product during lignocellulosic biorefinery processes, and it has been applied widely as a functional biomaterial. In this study, the adsorption behavior of Cd(II) and Pb(II) metal ions was investigated via ion chelation using aminated lignins (ALs) with primary, secondary, and tertiary amine groups. ALs exhibited optimal Cd(II) and Pb(II) adsorption capacities in solution under neutral conditions due to their chelating, electrostatic, and cationic–π interactions with metal ions. The AL with the primary amine group showed the highest adsorption capacities for both Cd(II) and Pb(II), reaching 83.2 and 159.7 mg·g-1, respectively, followed by the ALs with secondary and tertiary amine groups. The adsorption kinetics and isotherm analysis demonstrated that all adsorption behaviors followed the Langmuir isotherm and pseudo-second-order kinetics. Thermodynamic studies revealed that the adsorption processes of Cd(II) and Pb(II) using the ALs were spontaneous and endothermic. These results demonstrate that ALs are promising adsorbents for the removal of Cd(II) and Pb(II) metal ions.

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A Novel Biosorbent From Hardwood Cellulose Nanofibrils Grafted With Poly(m-Aminobenzene Sulfonate) for Adsorption of Cr(VI)

Abstract: Graphical AbstractBiosorbent from cellulose nanofibrils grafted with poly(m-aminobenzene sulfonate) (PABS) was prepared for effective detoxification and adsorption of Cr(VI) in an aqueous medium.

Cited by 18 publications

References 49 publications

Facile synthesis of lignin Schiff base-copper complex as a catalyst for methylene blue and 4- nitrophenol removal

Facile synthesis of lignin Schiff base-copper complex as a catalyst for methylene blue and 4- nitrophenol removal

Advances in Sorptive Removal of Hexavalent Chromium (Cr(VI)) in Aqueous Solutions Using Polymeric Materials

Application of three types of aminated lignins for efficient removal of Cd(II) and Pb(II) ions in aqueous solution

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