Recent advances in lignin-based porous materials for pollutants removal from wastewater

Liu, Yunlong; Jin, Can; Yang, Zhaozhe; Wu, Guomin; Kong, Zhenwu

doi:10.1016/j.ijbiomac.2021.07.152

Cited by 57 publications

(13 citation statements)

References 151 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[20][21][22][23] However, most of the applications include the removal of heavy metals, inorganic anions such as phosphates and nitrates, dyes, and oil. 20,24 Although reports on the adsorption potential of lignin either as chemically modified lignin or as lignin-derived activated carbon are numerous, 25,26 the application of LNPs in water treatment is relatively unexplored. Moreover, applications targeting the removal of pharmaceutical compounds are limited.…”

Section: Introductionmentioning

confidence: 99%

Systematic investigation of the adsorption potential of lignin- and cellulose-based nanomaterials towards pharmaceuticals

Agustin

Mikkonen

Kemell

et al. 2022

Environ. Sci.: Nano

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

Systematic investigation of the adsorption potential of lignin- and cellulose-based nanomaterials towards pharmaceuticals

Agustin

Mikkonen

Kemell

et al. 2022

Environ. Sci.: Nano

View full text Add to dashboard Cite

show abstract

“…1(a). 14,19 It contains mostly aryl ether bonds present as β-O-4, α-O-4, 4-O-5 or carbon-carbon bonds in the form of β-β, β-1, β-5, 5-5 but randomly arranged as presented in Fig. 1(b).…”

Section: Slow-release Fertilizersmentioning

confidence: 99%

“…This is made up mainly of three units derived from phenylpropane called guaiacyl alcohol (G), syringyl alcohol (S), and 4‐hydroxyphenyl alcohol (H), shown in Fig. 1(a) 14,19 . It contains mostly aryl ether bonds present as β ‐ O ‐4, α‐ O ‐4, 4‐ O ‐5 or carbon–carbon bonds in the form of β ‐ β , β ‐1, β ‐5, 5–5 but randomly arranged as presented in Fig.…”

Section: Properties and The Application Of Ligninmentioning

confidence: 99%

Slow‐release fertilizers using lignin: Challenges and future prospects

Kumar

Næss

Sørensen

2023

Biofuels Bioprod Bioref

View full text Add to dashboard Cite

Lignin is an integral part of the plant cell wall and is the largest single source of aromatic carbon in the world, which makes it suitable for the production of feed, chemicals, fuels, and biomaterials. Total lignin production is greater than 50 million tons per annum; however, currently, less than 5% of the lignin is being valorized, and 95% is burnt to create steam and power. Burning aromatic carbons produces heat and power, making them low‐value materials. However, the macromolecules of lignin can be modified to use for several industrial applications, such as surfactants, paints, hydrogel, absorbents, and fertilizer. In this review, we provide a systematic and comprehensive summary of the last 10 years of the development of controlled release fertilizer (CRF) from lignin, which is a renewable material. Lignin‐based CRFs are green, environment friendly, and are considered efficient for agricultural use in place of urea and diammonium phosphate. Coating the fertilizer with lignin could increase fertilizer's 20–30 times slower release vis‐à‐vis uncoated fertilizer. However, the structure of lignin varies from one process to another process; it is therefore highly dependent upon the fractionation process and pulping methodologies adopted. A high degree of heterogeneity, complex structure, and low reactivity of the lignin results in an uneven coating, large surface porosity, and cracks in the coatings. The similarity of the lignin can be improved by chemical modifications in its molecule; however, any chemical processing increases the cost of slow‐release fertilizer.

show abstract

“…Of the technologies being researched, electrochemical, biologically activated membranes, and adsorption systems stand out. , Recent reports have demonstrated the efficacy of nanomaterials to extract dyes, and low-, medium-, and high-toxicity metals from wastewater via accessible and low-cost adsorption processes. ,, The precursors for these nanomaterials are predominantly carbon-based (e.g., graphene, carbon nanotubes, membranes, and activated carbon), metal oxide-based (e.g., MgO, CdO, Fe 3 O 4 ), silica-based (e.g., silica nanoparticles), and to a lesser extent polymer-based (e.g., nanomaterials, and aerogels). ,, Polymer-based, specifically biopolymers, could significantly enhance advanced adsorption processes technically, socio-economically, and environmentally. In fact, lignin, one the major constituents of lignocellulosic biomass (nonedible) represents the second-most abundant biopolymer after cellulose (∼40%, w/w cellulose, and ∼25% w/w lignin of lignocellulosic biomass); it is a renewable reserve of aromatic compounds, accounting for about 30% of the total nonfossil carbon on Earth, with carbon representing about 60% of the structure of lignin, , as polymer chains and nanoparticles are efficacious at removing various contaminants from wastewater, including metals, dyes, pharmaceuticals, and nutrients, making it a potential efficacious adsorbent for resource recovery from wastewater. ,− Although nano- and microstructured lignin particles are highly attractive adsorption materials, their industrial valorization is hampered by the heterogeneity of the polymer. The chemical properties (e.g., molecular weight, and hydroxyl group concentration), and physical properties (such as granularity, and color) vary depending on the plant source and lignin purification method, and these variations produce nanoparticles with distinct properties in each synthesis batch. − To advance the field of lignin smart nanoparticles as selective and efficient adsorbents, the coordinated effort of a multidisciplinary team of chemical scientists is needed to develop standard methods of lignin purification, nanoparticle synthesis, and characterization to allow the rational design of lignin nanoparticle to suit the needs of a particular application.…”

Section: Introduction: Wastewater a Mine Of Valuable Resources That C...mentioning

confidence: 99%

Lignin Smart Nanoparticles for Effective and Eco-Friendly Resource Recovery from Wastewater: Status, Challenges, and Opportunities

Andeme Ela,

Heiden

2024

ACS Sustainable Resour. Manage.

View full text Add to dashboard Cite

The overexploitation of finite natural resources and anthropogenic pollution pose a threat to economic security and human health. One approach for tackling these challenges is the development of effective, accessible, low-cost, bioderived, and eco-friendly technologies for the recovery of resources from wastewater. Wastewater contains resources of appreciable market value, including metals, pesticides, inorganic nutrients, dyes, and per- and polyfluorinated substances (PFAS). Established technologies, such as low-pressure membranes, biological treatments, and oxidation, are ineffectual, while more intricate technologies such as customized granular activated carbon and anion exchange resins suffer predominantly from high fouling rates and operating costs, which eventually reduce the effectiveness of resource recovery; thus, these limitations motivate the development of experimental technologies. Green, biopolymeric, smart lignin nanoparticles are potential candidates growing in popularity for their effective recovery of resources from wastewater via adsorption, as lignin-based nanoparticles with metal adsorption capacities higher than 40 mg/g have been reported. In addition, employing lignin nanoparticles for this purpose will promote the circular economy of biorefineries and support the sustainable development of nations. Nonetheless, the valorization of lignin through nanotechnology is limited by the inhomogeneity of technical lignins and the resultant nanoparticles. For instance, the physical (e.g., surface area and electrostatic charge) and chemical (e.g., concentration of hydroxyl and carbonyl groups) properties of the lignin precursor will determine the affinity of the resultant nanoparticles to specific metal ions and their adsorption capacity. Hence, a profound understanding of the relationship between lignin derivation and nanoparticle synthetic methodology with resultant nanoparticle properties (e.g., hydrodynamic size) and performance (i.e., adsorption capacity) is needed to advance the adoption of lignin nanoparticles in sustainable industrial wastewater treatment. Alas, reviews of this nature are lacking. To fill this gap, this perspective reflects on the state-of-the art techniques for lignin nanoparticle synthesis and their application in the retrieval of various substances from aqueous environments, highlighting the properties–performance correlations, the specificity of the nanoparticles, and their comparative performance against established and laboratory-scale technologies. Ultimately, standardized strategies will be needed to control the functionality of lignin nanoparticles (e.g., hydrodynamic size and programmable morphology) to enhance the effective recovery of valuable resources from copious and diverse wastewater resources.

show abstract

Recent advances in lignin-based porous materials for pollutants removal from wastewater

Cited by 57 publications

References 151 publications

Systematic investigation of the adsorption potential of lignin- and cellulose-based nanomaterials towards pharmaceuticals

Systematic investigation of the adsorption potential of lignin- and cellulose-based nanomaterials towards pharmaceuticals

Slow‐release fertilizers using lignin: Challenges and future prospects

Lignin Smart Nanoparticles for Effective and Eco-Friendly Resource Recovery from Wastewater: Status, Challenges, and Opportunities

Contact Info

Product

Resources

About