2016
DOI: 10.15376/biores.11.2.3073-3083
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Direct Preparation of Hollow Nanospheres with Kraft Lignin: A Facile Strategy for Effective Utilization of Biomass Waste

Abstract: This work discusses the preparation and characterization of hollow nanospheres based on kraft lignin (KL). Kraft lignin is a by-product of the papermaking industry and an abundant renewable resource. It was determined that adding water to a KL/THF solution induced KL to form hollow nanospheres via self-assembly. Scanning electron microscopy and transmission electron microscopy confirmed the hollow nanosphere morphology. The shell thickness of the hollow nanospheres was tunable by adjusting the initial KL conce… Show more

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Cited by 30 publications
(48 citation statements)
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“…This is reflected in the observed inverse correlation between the addition rate and average particle size when adding water into lignin solution (Fig 2A-B). The mechanism involving an emulsion like intermediate stage could also better explain the reported formation of hollow lignin spheres (Li et al 2016a, Xiong et al 2017a) when low concentration of lignin is used. Fig 2 -Influence of solvent shfiting technique on average particle size of CLPs.…”
Section: Methods Of Solvent Displacement Process To Form Clpmentioning
confidence: 89%
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“…This is reflected in the observed inverse correlation between the addition rate and average particle size when adding water into lignin solution (Fig 2A-B). The mechanism involving an emulsion like intermediate stage could also better explain the reported formation of hollow lignin spheres (Li et al 2016a, Xiong et al 2017a) when low concentration of lignin is used. Fig 2 -Influence of solvent shfiting technique on average particle size of CLPs.…”
Section: Methods Of Solvent Displacement Process To Form Clpmentioning
confidence: 89%
“…Use of THF as a solvent system for lignin dissolution prior to the CLP formation has been found efficient in previous studies (Lievonen et al 2016;Li et al 2016a;Xiong et al 2017a;Xiong et al 2017b), while there are also alternative solvent systems for CLP formation, such as acetone (Appendix 1). Unlike in the studies where pure THF solvent was used, we have applied THF-water (3:1) mixture as solvent for lignin.…”
Section: Composition Of Solvent System and Concentration Of Ligninmentioning
confidence: 99%
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