Concentrated sulfuric acid aqueous solution enables rapid recycling of cellulose from waste paper into antimicrobial packaging

Oliva, Camelia; Huang, Weijuan; Badri, Souhaïla El; Lee, Maria Ai Lan; Ronholm, Jennifer; Chen, Lingyun; Wang, Yixiang

doi:10.1016/j.carbpol.2020.116256

Cited by 31 publications

(28 citation statements)

References 36 publications

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“…Several attempts have been made, such as biorefinery, construction and manufacturing, molded paper, fuel, art, and handicraft [134] to produce value-added products. Oliva et al [136] converted waste paper into value-added cellulose films through rapid dissolution in a pre-cooled H 2 SO 4 solution. The regenerated cellulose films were transparent and had comparable mechanical properties to those cellulose films prepared from the spruce pulp in the same solvent.…”

Section: Recyclabilitymentioning

confidence: 99%

Chitin- and cellulose-based sustainable barrier materials: a review

Bourg

et al. 2020

emergent mater.

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The accumulation of synthetic plastics used in packaging applications in landfills and the environment is a serious problem. This challenge is driving research efforts to develop biodegradable, compostable, or recyclable barrier materials derived from renewable sources. Cellulose, chitin/chitosan, and their combinations are versatile biobased packaging materials because of their diverse biological properties (biocompatibility, biodegradability, antimicrobial properties, antioxidant activity, non-toxicity, and less immunogenic compared to protein), superior physical properties (high surface area, good barrier properties, and mechanical properties), and they can be assembled into different forms and shapes (powders, fibers, films, beads, sponges, gels, and solutions). They can be either assembled into packaging films or used as fillers to improve the properties of other biobased polymers. Methods such as preparation of composites, multilayer coating, and alignment control are used to further improve their barrier, mechanical properties, and ameliorate their moisture sensitivity. With the growing application of cellulose and chitin-based packaging materials, their biodegradability and recyclability are also discussed in this review paper. The future trends of these biobased materials in packaging applications and the possibility of gradually replacing petroleum-based plastics are analyzed in the “Conclusions” section.

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Section: Recyclabilitymentioning

confidence: 99%

Chitin- and cellulose-based sustainable barrier materials: a review

Bourg

et al. 2020

emergent mater.

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“…Textile and wastepaper are major contributors to MSW with the generation of 16 Mt just in United States in 2014 for textile and 400 Mt globally for wastepaper [59]. However, the recycling of these wastes has not reached to a high rate.…”

Section: Municipal Solid Wastesmentioning

confidence: 99%

“…The majority of wastes are discarded into landfill or incinerated, leading to negative impacts on the environment by contaminating ground water and generating greenhouse gases during decomposition [61]. Several attempts have been made to re-utilize wastepaper and cardboard, such as recycling of cellulose into antimicrobial packaging [59], producing biochar and bio-oil through pyrolysis [62] and obtaining cellulose nanocrystals [63]. In terms of textile made from a variety of materials, novel recycling approaches have also gained attention, including recovering polyester fibers and glucose syrup from waste polyester cotton blends [64], recycling cellulosic fibers from cotton wastes [65], and preparing insulation materials [61].…”

Section: Municipal Solid Wastesmentioning

confidence: 99%

“…[80] with permission from The Royal Society of Chemistry and Ref. [59,79,81] with permissions from Elsevier).…”

Section: Extraction Of Natural Polymersmentioning

confidence: 99%

“…*' Calculated by the weight of extracted polymer/the weight of polymer in raw material '**' Calculated by dry weight of extracted polymer/dry weight of raw material 'n.d.' Not determined Films and hydrogels derived from different biomass wastes: (a) films from wastepaper; (b) cellulose nanofibril (CNF) hydrogel from waste sackcloth; (c) film from durian rind; and (d) film from Eucalyptus globulus wood chips[59,[79][80][81] …”

mentioning

confidence: 99%

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Recent progress in the conversion of biomass wastes into functional materials for value-added applications

Zhou

Wang

2020

Science and Technology of Advanced Materials

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100

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The amount of biomass wastes is rapidly increasing, which leads to numerous disposal problems and governance issues. Thus, the recycling and reuse of biomass wastes into value-added applications have attracted more and more attention. This paper reviews the research on biomass waste utilization and biomass wastes derived functional materials in last five years. The recent research interests mainly focus on the following three aspects: (1) extraction of natural polymers from biomass wastes, (2) reuse of biomass wastes, and (3) preparation of carbon-based materials as novel adsorbents, catalyst carriers, electrode materials, and functional composites. Various biomass wastes have been collected from agricultural and forestry wastes, animal wastes, industrial wastes and municipal solid wastes as raw materials with low cost; however, future studies are required to evaluate the quality and safety of biomass wastes derived products and develop highly feasible and cost-effective methods for the conversion of biomass wastes to enable the industrial scale production.

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Recycling of waste cotton fabrics into regenerated cellulose films through three solvent systems: A comparison study

Zhou

Wang

2021

J of Applied Polymer Sci

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Large amounts of textile waste are generated every year and disposed of through landfill or incineration, leading to numerous environmental and social issues. In this work, the dissolution of three typical waste cotton fabrics (t‐shirts, bed sheets and jeans) in NaOH/urea aqueous solution, H2SO4 aqueous solution, and LiCl/DMAc solution was investigated. Compared to different types of cotton fabrics, the effects of three solvents on the dissolution of fabrics were more obvious, leading to the significant changes in the structure and properties of regenerated cellulose films. Cotton fabrics (about 2%–5%) were rapidly dissolved (8 min) in H2SO4 and NaOH/urea solvents after acid pretreatment, while the dissolution in LiCl/DMAc solvent did not need any pretreatment, but a lower cellulose concentration (1%), higher dissolution temperature (80°C), and longer dissolution time (24 h) were required. The films produced from bed sheets in NaOH/urea solution exhibited the highest tensile strength, thermal stability, and water vapor barrier property. It was because of the stronger cellulose chain entanglement and hydrogen bonds induced by the higher cellulose concentration in NaOH/urea solution. Therefore, this work proves the feasibility to recycle waste cotton fabrics into biodegradable cellulose films, which can be potentially used in various food and agricultural applications.

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Concentrated sulfuric acid aqueous solution enables rapid recycling of cellulose from waste paper into antimicrobial packaging

Cited by 31 publications

References 36 publications

Chitin- and cellulose-based sustainable barrier materials: a review

Chitin- and cellulose-based sustainable barrier materials: a review

Recent progress in the conversion of biomass wastes into functional materials for value-added applications

Recycling of waste cotton fabrics into regenerated cellulose films through three solvent systems: A comparison study

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