Preparation and characterization of biodegradable lignin-sulfonate nanoparticles using the microemulsion method to enhance the acetylation efficiency of lignin-sulfonate

Moradi, Samira; Shayesteh, Keivan; Behbudi, Gity

doi:10.1016/j.ijbiomac.2020.05.157

Cited by 27 publications

(6 citation statements)

References 38 publications

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“…Recently, the development of nanoparticles (NPs) from lignin has gained interest due to its advantageous nature for drug delivery systems, delivery of hydrophobic molecules, improvement of the UV barrier, and as a reinforcing agent in nanocomposites, and its antibacterial and antioxidant applications. NPs developed from lignin have also been used as an alternative to inorganic NPs due to some safety issues raised in recent years [ 28 , 29 , 30 ].…”

Section: Resultsmentioning

confidence: 99%

Valorization of Rice Straw via Hydrotropic Lignin Extraction and Its Characterization

Yin

Wang

et al. 2021

Molecules

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Rice straw hydrotropic lignin was extracted from p-Toluene sulfonic acid (p-TsOH) fractionation with a different combined delignification factor (CDF). Hydrotropic lignin characterization was systematically investigated, and alkaline lignin was also studied for the contrast. Results showed that the hydrotropic rice straw lignin particle was in nanometer scopes. Compared with alkaline lignin, the hydrotropic lignin had greater molecular weight. NMR analysis showed that β-aryl ether linkage was well preserved at low severities, and the unsaturation in the side chain of hydrotropic lignin was high. H units and G units were preferentially degraded and subsequently condensed at high severity. High severity also resulted in the cleavage of part β-aryl ether linkage. 31P-NMR showed the decrease in aliphatic hydroxyl groups and the increasing carboxyl group content at high severity. The maximum weight loss temperature of the hydrotropic lignin was in the range of 330–350 °C, higher than the alkaline lignin, and the glass conversion temperature (Tg) of the hydrotropic lignin was in the range of 107–125 °C, lower than that of the alkaline lignin. The hydrotropic lignin has high β-aryl ether linkage content, high activity, nanoscale particle size, and low Tg, which is beneficial for its further valorization.

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Section: Resultsmentioning

confidence: 99%

Valorization of Rice Straw via Hydrotropic Lignin Extraction and Its Characterization

Yin

Wang

et al. 2021

Molecules

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“…Methods-Synthesis of NanoSLs: The procedure for synthesis of NanoSLs was modeled off of established methods of solvent-antisolvent synthesis of lignin nanospheres, [64] as well as prior works that dealt specifically with SL. [47,48] First, SL (0.28 g mL −1 ) was added to 20 mL of distilled water under stirring for 20 min. Separately, tween 80 (0.32 g mL −1 ) was added to 20 mL of water followed by mechanical mixing for 20 min to obtain a homogenized emulsion.…”

Section: Discussionmentioning

confidence: 99%

Proton Exchange Membranes from Sulfonated Lignin Nanocomposites for Redox Flow Battery Applications

dos Santos,

McMichael,

Whitbeck

et al. 2024

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Redox flow batteries (RFBs) are increasingly being considered for a wide range of energy storage applications, and such devices rely on proton exchange membranes (PEMs) to function. PEMs are high‐cost, petroleum‐derived polymers that often possess limited durability, variable electrochemical performance, and are linked to discharge of perfluorinated compounds. Alternative PEMs that utilize biobased materials, including lignin and sulfonated lignin (SL), low‐cost byproducts of the wood pulping process, have struggled to balance electrochemical performance with dimensional stability. Herein, SL nanoparticles are demonstrated for use as a nature‐derived, ion‐conducting PEM material. SL nanoparticles (NanoSLs) can be synthesized for increased surface area, uniformity, and miscibility compared with macrosized lignin, improving proton conductivity. After addition of polyvinyl alcohol (PVOH) as a structural backbone, membranes with the highest NanoSL concentration demonstrated an ion exchange capacity of 1.26 meq g−1, above that of the commercial PEM Nafion 112 (0.98 meq g−1), along with a conductivity of 80.4 mS cm−1 in situ, above that of many biocomposite PEMs, and a coulombic efficiency (CE), energy efficiency (EE) and voltage efficiency (VE) of 91%, 68% and 78%, respectively at 20 mA cm−2. These nanocomposite PEMs demonstrate the potential for valorization of forest biomass waste streams for high value clean energy applications.

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“…Furthermore, the decrease in intensity of some distinct urea peaks in the combination of slow-release urea with Ac-LS shows homogeneous dispersion and penetration of Ac-LS into urea [22].…”

Section: Identifying Slow-release Urea By Xrdmentioning

confidence: 92%

“…On the other hand, the LS biopolymer is biodegradable too, and won't lead to environmental problems [21]. Using it in alkaline soils can improve soil fertility [22,23].…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Bioconversion of Urea with Modified Lignosulfonate Biomass as Slow-Release Urea in Aqueous Medium and Rumen Fluid

Seifdavati,

Mohammadzadeh,

Shayesteh

et al. 2024

Preprint

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For producing a combination of urea with acetylated lignosulfonate in the pellet form, the urea release was studied under real conditions in the livestock rumen. Morphological, chemical, and mechanical features of slow-release urea combination with acetylated lignosulfonate and comparing it with lignosulfonate, acetylated lignosulfonate, and urea were studied. The produced pellets with weight percentages (10, 30, 50, and 65) showed the potential of acetylated lignosulfonate in water. For the study of the amount of nitrogen release, slow-release urea (a combination of 65 wt% of acetylated lignosulfonate with 35 wt% of urea) together with three other experimental ratio samples including control ration without urea, urea control supplement ration and Nitro-Za inside the livestock rumen were studied and measured during a period of 0.5 to 24 h. The changes range in Nitro-Za ammonia Nitrogen concentration and the slow-release substance are aligned and similar and the slow-release substance belonging to the urea ration combined with acetylated lignosulfonate showed better performance from the fourth hour. The study results showed positive results regarding supplementing the feed ration with slow-release urea compared to urea and comparable to Nitro-Za.

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Preparation and characterization of biodegradable lignin-sulfonate nanoparticles using the microemulsion method to enhance the acetylation efficiency of lignin-sulfonate

Cited by 27 publications

References 38 publications

Valorization of Rice Straw via Hydrotropic Lignin Extraction and Its Characterization

Valorization of Rice Straw via Hydrotropic Lignin Extraction and Its Characterization

Proton Exchange Membranes from Sulfonated Lignin Nanocomposites for Redox Flow Battery Applications

Investigation of the Bioconversion of Urea with Modified Lignosulfonate Biomass as Slow-Release Urea in Aqueous Medium and Rumen Fluid

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