Cellulose nanocrystals: Pretreatments, preparation strategies, and surface functionalization

International Journal of Biological Macromolecules, Journal Year: 2021, Volume and Issue: 182, P. 1554 - 1581

Published: May 23, 2021

Language: Английский

---

The role of lignin and lignin-based materials in sustainable construction – A comprehensive review

International Journal of Biological Macromolecules, Journal Year: 2021, Volume and Issue: 187, P. 624 - 650

Published: July 21, 2021

Language: Английский

---

Fabrication of sulfur-doped biochar derived from tapioca peel waste with superior adsorption performance for the removal of Malachite green and Rhodamine B dyes

Surfaces and Interfaces, Journal Year: 2021, Volume and Issue: 23, P. 100920 - 100920

Published: Jan. 3, 2021

Language: Английский

---

Laccase as a Tool in Building Advanced Lignin‐Based Materials

ChemSusChem, Journal Year: 2021, Volume and Issue: 14(21), P. 4615 - 4635

Published: Aug. 16, 2021

Abstract Lignin is an abundant natural feedstock that offers great potential as a renewable substitute for fossil‐based resources. Its polyaromatic structure and unique properties have attracted significant research efforts. The advantages of enzymatic over chemical or thermal approach to construct deconstruct lignins are it operates in mild conditions, requires less energy, usually uses non‐toxic chemicals. Laccase widely investigated oxidative enzyme can catalyze the polymerization depolymerization lignin. dual nature causes challenge controlling overall direction lignin‐laccase catalysis. In this Review, factors affect laccase‐catalyzed lignin were summarized, evaluated, compared identify key features favor polymerization. addition, critical assessment conditions enable production novel hybrids via grafting was presented. To assess industrial relevance laccase‐assisted valorization, patented applications surveyed challenges opportunities analyzed. Finally, our perspective realizing full laccase building lignin‐based materials advanced deduced from analysis limitations governing grafting.

Language: Английский

---

Antibacterial lignin-based nanoparticles and their use in composite materials

Nanoscale Advances, Journal Year: 2022, Volume and Issue: 4(21), P. 4447 - 4469

Published: Jan. 1, 2022

Lignin, one of the most abundant biopolymers on earth, has been traditionally considered a low-value by-product pulp and paper industries. This renewable raw material, besides being source valuable molecules for chemical industry, also antioxidant, UV-absorbing, antibacterial properties in its macromolecular form. Moreover, lignin form nanoparticles (LigNPs) presents advantages over bulk lignin, such as higher reactivity due to larger surface-to-volume ratio. In view rapid surge antimicrobial resistance (AMR), caused by overuse antibiotics, continuous development novel agents is needed. The use LigNPs suitable alternative conventional antibiotics topical application or disinfectants surfaces packaging. Besides, their multiple unspecific targets bacterial cell may prevent emergence AMR. review summarizes latest developments nano-formulated both dispersion embedded materials. following roles formulation NPs have analyzed: (i) an active nanoformulations, (ii) reducing capping agent metals, (iii) carrier other agents. Finally, covers inclusion films, fibers, hydrogels, foams, obtaining lignin-based nanocomposites variety applications, including food packaging, wound healing, medical coatings.

Language: Английский

---

Advances of Modified Lignin as Substitute to Develop Lignin‐Based Phenol‐Formaldehyde Resin Adhesives

ChemSusChem, Journal Year: 2023, Volume and Issue: 16(15)

Published: June 20, 2023

Abstract Traditionally, phenols used to prepare phenol‐formaldehyde (PF) resin adhesives are obtained from phenolic compounds and various chemicals, which extracted petroleum‐based raw materials. Lignin, a sustainable macromolecule in the cell wall of biomass with an aromatic ring hydroxyl group similar those phenol, can be ideal substitute for phenol PF adhesives. However, only few lignin‐based produced on large scale industry, mainly because low activity lignin. Preparing exceptional achievements by modifying lignin instead is efficient method improve economic benefits protect environment. In this review, latest progress preparation via modification, including chemical, physical, biological modifications, discussed. addition, advantages disadvantages different modification methods compared discussed, future research directions synthesis proposed.

Language: Английский

---

Lignin modification and valorization in medicine, cosmetics, environmental remediation and agriculture: a review

Environmental Chemistry Letters, Journal Year: 2023, Volume and Issue: 21(4), P. 2171 - 2197

Published: March 22, 2023

Language: Английский

---

Valorization of lignin for advanced material applications: a review

RSC Sustainability, Journal Year: 2024, Volume and Issue: 2(4), P. 804 - 831

Published: Jan. 1, 2024

A comprehensive overview of various physicochemical modification and functionalization routes lignin to produce alternative low carbon footprint feedstock for sustainable polymers advanced material applications is presented.

Language: Английский

---

A Critical Review of the Physicochemical Properties of Lignosulfonates: Chemical Structure and Behavior in Aqueous Solution, at Surfaces and Interfaces

Surfaces, Journal Year: 2020, Volume and Issue: 3(4), P. 622 - 648

Published: Nov. 16, 2020

Lignosulfonates are bio-based surfactants and specialty chemicals, which generated by breaking the near-infinite lignin network during sulfite pulping of wood. Due to their amphiphilic nature, lignosulfonates used in manifold applications such as plasticizer, dispersant, stabilizer formulations. Function performance determined behavior aqueous solution at surfaces interfaces, is turn imposed chemical make-up. This review hence summarizes efforts made into delineating physicochemical properties lignosulfonates, while also relating composition structure. randomly branched polyelectrolytes with abundant sulfonate carboxylic acid groups ensure water-solubility. In solution, conformation, colloidal state, adsorption or interfaces can be affected a range parameters, pH, concentration other electrolytes, temperature, presence organic solvents. These parameters may affect behavior, reportedly follows Langmuir isotherm pseudo second-order kinetics. The relative hydrophobicity, hydrophobic interaction chromatography, an indicator that help relate lignosulfonates. More materials have been found exhibit lower charge density. improve dispersion stabilization, but it disadvantageous if electrokinetic needs introduced solid precipitation due salting out issue. addition, monolignol composition, molecular weight distribution, modification conclusion, tailored controlling aspects production fractionation, subsequent modification. Recent developments spawned magnitude products technologies, reflected wide variety possible application areas.

Language: Английский

---

A review on physico-chemical delignification as a pretreatment of lignocellulosic biomass for enhanced bioconversion

Bioresource Technology, Journal Year: 2021, Volume and Issue: 346, P. 126591 - 126591

Published: Dec. 17, 2021

Language: Английский

---