Assembly of lignin-based colloidal particles: effects of cationic surfactants, molecular weight, and solvent on morphology

Liu, Dexiang; Liu, Jinyu; Zhou, Yingxiang; Chen, Jienan; Zhan, Peng; Gao, Yang; Wu, Zhongbiao

doi:10.1039/d0ra01444c

Cited by 13 publications

(3 citation statements)

References 42 publications

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“…It is clearly shown that KL-NPs had excess amorphous or small particles surrounding the surfaces due to the mixed Route C and D. AKL-NPs are mainly local clusters, representing Route C. The morphology of AKL-NPs is similar to the reported cationic LNP when 1,4-dioxane was the solvent and DI water was antisolvent. 58 For the EKL that mainly has low molecular weight fractions, the morphology looks similar to KL-NPs at the lower concentration and suggests the LNP formation follows Route E. The difference reflects the self-assembly patterns between large and small molecular weight fractions. While it brings a more negatively charged surface to the aggregated particles, non-DLVO forces get involved (Route F).…”

Section: Resultsmentioning

confidence: 93%

Size-tailorable lignin nanoparticle synthesis: effects of solution chemistry and DLVO forces on amphiphilic balance of lignin

Li,

Zhang,

Lee

et al. 2023

Green Chem.

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Section: Resultsmentioning

confidence: 93%

Size-tailorable lignin nanoparticle synthesis: effects of solution chemistry and DLVO forces on amphiphilic balance of lignin

Li,

Zhang,

Lee

et al. 2023

Green Chem.

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“…However, the increase in the oil removal efficiency did not change significantly with the continuous increase in pH. The surface tension remained unchanged, resulting in a stable oil removal efficiency of OS [ 33 ]. Therefore, the optimum pH was determined to be 13.…”

Section: Resultsmentioning

confidence: 99%

Efficient Separation and Recovery of Petroleum Hydrocarbon from Oily Sludge by a Combination of Adsorption and Demulsification

Yao

Liu

et al. 2022

IJMS

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The treatment of oily sludge (OS) can not only effectively solve environmental pollution but also contribute to the efficient use of energy. In this study, the separation effect of OS was analyzed through sodium lignosulfonate (SL)-assisted sodium persulfate (S/D) treatment. The effects of SL concentration, pH, temperature, solid–liquid ratio, revolving speed, and time on SL adsorption solubilization were analyzed. The effects of sodium persulfate dosage, demulsification temperature, and demulsification time on sodium persulfate oxidative demulsification were analyzed. The oil removal efficiency was as high as 91.28%. The results showed that the sediment was uniformly and finely distributed in the S/D-treated OS. The contact angle of the sediment surface was 40°, and the initial apparent viscosity of the OS was 56 Pa·s. First, the saturated hydrocarbons and aromatic hydrocarbons on the sediment surface were adsorbed by the monolayer adsorption on SL. Stubborn, cohesive oil agglomerates were dissociated. Sulfate radical anion (SO4−·) with a high oxidation potential, was formed from sodium persulfate. The oxidation reaction occurred between SO4−· and polycyclic aromatic hydrocarbons. A good three-phase separation effect was attained. The oil recovery reached 89.65%. This provides theoretical support for the efficient clean separation of oily sludge.

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“…Previous research has shown that the cellulose, lignin and their derivatives are good candidates to prepare the effective flocculants. However, most flocculants prepared have the disadvantages of high flocculant dose, narrow pH window, complex chemical modification process and additional high cost from the chemicals used (Aro et al 2017;Chen et al 2020;Dutt et al 2020;Liu et al 2020;Oveissi et al 2016;Yang et al 2017).…”

Section: Introductionmentioning

confidence: 99%

A cost-effective anionic flocculant prepared by grafting carboxymethyl cellulose and lignosulfonate with acrylamide

et al. 2021

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How to efficiently utilize most abundant biomass of cellulose, lignin and their derivatives has become an emerging challenge as the anticipative oil depletion. In this paper, the ternary anionic copolymer of carboxymethyl cellulose-acrylamide-lignosulfonate (CAL) was successfully prepared by hydrothermal polymerization. Based on the flocculation characteristics of cationic methylene blue, the optimal polymerization process was confirmed as the raw material ratio of 1:1:1, initiator dosage of 0.9 wt %, the reaction time was 5 h and the reaction temperature was 55 °C. The results showed that the decolorization ratio was 87.5% at the CAL dosage of 600 mg/L for the 500 mg/L methylene blue simulated wastewater. The CAL achieved fast flocculation kinetics and super color removal ratios in the wide ranges of environmental pH, temperature and salt concentration. The flocculation mechanism is single charge neutralization. Moreover, the estimated treatment cost of CAL is 68.3% lower than that of commercial anionic PAM. The prepared anionic CAL flocculant has the characteristics of environmental safety, excellent flocculation performance and cost-effectiveness, which shows great potential in the field of dye wastewater treatment, and also provides a feasible way for the effective utilization of biomass resources.

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Assembly of lignin-based colloidal particles: effects of cationic surfactants, molecular weight, and solvent on morphology

Abstract: Effect of cationic surfactants, molecular weight and solvent on the morphology of lignin based particles and in vitro release behavior.

Cited by 13 publications

References 42 publications

Size-tailorable lignin nanoparticle synthesis: effects of solution chemistry and DLVO forces on amphiphilic balance of lignin

Size-tailorable lignin nanoparticle synthesis: effects of solution chemistry and DLVO forces on amphiphilic balance of lignin

Efficient Separation and Recovery of Petroleum Hydrocarbon from Oily Sludge by a Combination of Adsorption and Demulsification

A cost-effective anionic flocculant prepared by grafting carboxymethyl cellulose and lignosulfonate with acrylamide

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