Isolation of Cellulose Nanofibers from <i>Oryza sativa</i> Residues via TEMPO Mediated Oxidation

Madivoli, Edwin S.; Kareru, Patrick; Gachanja, Anthony; Mugo, Samuel M.; Sujee, David M.; Fromm, Katharina M.

doi:10.1080/15440478.2020.1764454

Cited by 18 publications

(9 citation statements)

References 43 publications

(72 reference statements)

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“…Recently, oxidizing agents such as 2,2,6,6-tetramethylpiperidine-1-oxyl radical (TEMPO) and phthalimide-N-oxyl (PINO) have been used to obtain NC. They improve the environmental friendliness and shorten the duration of the nanocellulose production process compared to hydrolysis, but have a higher cost than the above acids [70][71][72].…”

Section: Preparation Of Nanocellulosementioning

confidence: 99%

Preparation, Properties and Use of Nanocellulose from Non-Wood Plant Materials

Barbash¹,

Yaschenko²

2021

Novel Nanomaterials

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The chapter describes the chemical structure and hierarchical organization of cellulose fibers, characteristics of non-wood plant raw materials (NWPM), and methods for preparing pulp and nanocellulose (NC). NWPM have the necessary reserves and properties to make up for a possible shortage of wood fiber for pulp production. The methodology for evaluating the efficiency of the delignification processes of plant raw materials is presented. A two-stage technology for producing pulp for the preparation of NC by environmentally friendly organosolvent methods of NWPM delignification is proposed. Methods for preparing nanocellulose are described. The technological parameters of the extraction of NC from pulp are discussed. The influence of NC on the properties of composite materials is analyzed. Areas of use for NC from NWPM are shown.

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Section: Preparation Of Nanocellulosementioning

confidence: 99%

Preparation, Properties and Use of Nanocellulose from Non-Wood Plant Materials

Barbash¹,

Yaschenko²

2021

Novel Nanomaterials

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“…Mineral acids such as sulfuric, hydrochloric, nitric, hydrobromic and phosphoric acids, or mixtures thereof, are used in the hydrolysis process (Rhim et al 2014). To obtain nanocellulose, other chemicals are used: organic acids (Li et al 2015;Biana et al 2018), deep autectic solvents (Yang X et al 2019), oxidizing agents: phthalimide-N-oxyl (PINO) radical (Coseri 2009) and TEMPO (Madivoli et al 2020). But sulfuric acid is most often used for the hydrolysis of cellulose due to the relatively low reaction temperature (up to 60°C) and short reaction time (up to 60 min) and the formation of a gel-like product in water (Habibi 2014).…”

Section: Introductionmentioning

confidence: 99%

Preparation of hemp nanocellulose and its use to improve the properties of paper for food packaging

Barbash

Yashchenko²,

Yakymenko³

et al. 2022

Cellulose

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Nacional'nij tehnicnij universitet Ukraini Kiivs'kij politehnicnij institut imeni Igora Sikors'kogo https://orcid.org/0000-0002-7933-6038 Olha Yashchenko Kyiv Polytechnic Institute: Nacional'nij tehnicnij universitet Ukraini Kiivs'kij politehnicnij institut imeni Igora Sikors'kogo Olha Yakymenko Kyiv Polytechnic Institute: Nacional'nij tehnicnij universitet Ukraini Kiivs'kij politehnicnij institut imeni Igora Sikors'kogo Roman Zakharko Kyiv Polytechnic Institute: Nacional'nij tehnicnij universitet Ukraini Kiivs'kij politehnicnij institut imeni Igora Sikors'kogo

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“…The TEMPO-mediated oxidation proved to be effective even for cellulose from different sources, such as sisal fibers when nanowhiskers have been successfully obtained [ 103 ], Oryza sativa that afforded nanofibers [ 104 ], or Eucalyptus globus that yielded in nanofibrils with reduced crystallinity [ 105 ], as well as cotton linters and ramie cellulose [ 106 ].…”

Section: Selective Oxidation Of Cellulose By Different Methodsmentioning

confidence: 99%

Selective Oxidation of Cellulose—A Multitask Platform with Significant Environmental Impact

Duceac

Tanasa²,

Coseri³

2022

Materials

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Raw cellulose, or even agro-industrial waste, have been extensively used for environmental applications, namely industrial water decontamination, due to their effectiveness, availability, and low production cost. This was a response to the increasing societal demand for fresh water, which made the purification of wastewater one of the major research issue for both academic and industrial R&D communities. Cellulose has undergone various derivatization reactions in order to change the cellulose surface charge density, a prerequisite condition to delaminate fibers down to nanometric fibrils through a low-energy process, and to obtain products with various structures and properties able to undergo further processing. Selective oxidation of cellulose, one of the most important methods of chemical modification, turned out to be a multitask platform to obtain new high-performance, versatile, cellulose-based materials, with many other applications aside from the environmental ones: in biomedical engineering and healthcare, energy storage, barrier and sensing applications, food packaging, etc. Various methods of selective oxidation have been studied, but among these, (2,2,6,6-tetramethylpiperidin-1-yl)oxyl) (TEMPO)-mediated and periodate oxidation reactions have attracted more interest due to their enhanced regioselectivity, high yield and degree of substitution, mild conditions, and the possibility to further process the selectively oxidized cellulose into new materials with more complex formulations. This study systematically presents the main methods commonly used for the selective oxidation of cellulose and provides a survey of the most recent reports on the environmental applications of oxidized cellulose, such as the removal of heavy metals, dyes, and other organic pollutants from the wastewater.

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Isolation of Cellulose Nanofibers from Oryza sativa Residues via TEMPO Mediated Oxidation

Cited by 18 publications

References 43 publications

Preparation, Properties and Use of Nanocellulose from Non-Wood Plant Materials

Preparation, Properties and Use of Nanocellulose from Non-Wood Plant Materials

Preparation of hemp nanocellulose and its use to improve the properties of paper for food packaging

Selective Oxidation of Cellulose—A Multitask Platform with Significant Environmental Impact

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