Surface modification of TEMPO-oxidized cellulose nanofibrils for composites to give color change in response to pH level

Masruchin, Nanang; Park, Byung‐Dae; Lee, Jung Myoung

doi:10.1007/s10570-018-2072-0

Cited by 22 publications

(12 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Novel pH-sensitive materials based on TEMPO-oxidized cellulose were obtained by further functionalization of TOCNFs as to obtain cellulose bearing ester and amine functional groups, respectively [ 210 ]. Their sensing ability has been monitored by color changes associated to different pH values.…”

Section: Environmental Applications Of Materials Based On Selectively...mentioning

confidence: 99%

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

Duceac¹,

Tanasă²,

Coseri³

2022

Materials

View full text Add to dashboard Cite

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.

show abstract

Section: Environmental Applications Of Materials Based On Selectively...mentioning

confidence: 99%

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

Duceac¹,

Tanasă²,

Coseri³

2022

Materials

View full text Add to dashboard Cite

show abstract

“…TEMPO-cellulose nanofibril (TCNF) obtained by 2,2,6,6-tetramethylpiperidine-1-oxyl radical (TEMPO)mediated oxidation has gained popularity in the field of bio-nanomaterials applications [1][2][3][4][5][6][7], due to the regioselective surface modification of cellulose which promote large amounts of anionically charged sodium carboxylate that may cause the individualization of cellulose microfibrils by electrostatic repulsion and/or osmotic effects in water, therefore reducing the energy consumption for nanocellulose isolation. Isogai et al (2011) [8] reported the required energy was below 7 MJ.Kg -1 of cellulose with yield above than 90%.…”

Section: Surface Modification Of Tempo-mediated Cellulose Nanofibril mentioning

confidence: 99%

Surface Modification of Tempo-Mediated Cellulose Nanofibril With Octadecylamine

Masruchin

Nuryawan

Kusumaningrum

et al. 2019

jsmi

Self Cite

View full text Add to dashboard Cite

SURFACE MODIFICATION OF TEMPO-MEDIATED CELLULOSE NANOFIBRIL WITH OCTADECYLAMINE. In this study, surface modification of 2,2,6,6-tetramethylpiperidine-1-oxyl radical TEMPO-cellulose nanofibrils (TCNF) was obtained by 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide hydrochloride (EDC) and N-hydroxysuccinimide (NHS)-mediated system. The carboxylate groups on TCNF surface was replaced by conjugation of octadecylamine (ODA). The conversion of the carboxylate groups on CNF into amide I and II groups was confirmed by attenuated transform reflectance-infrared (ATR-FTIR) and elemental analysis study. Further, decarboxylation of TCNF at higher temperature was hindered by the presence of amide groups resulted in the higher thermal stability of TCNF as observed by thermogravimetry analysis (TGA). These results suggested the possibility of modifying surface negatively charged of TCNF with conjugated amine groups into thermally stable nanocellulose.

show abstract

“…Recently, a large quantity of synthetic polymer luminescent materials with high uorescence e ciency, including nanostructures, carbon dots, and organic-inorganic complexes, as well as organic dyes have been widely reported and utilized in anti-counterfeiting (Dai et al, 2019;Liu et al, 2017;Qu et al, 2012;Waiskopf et al, 2021;Zhang et al, 2019). However, the application of the above-mentioned synthetic polymer uorescent materials is limited by the disadvantages such as complex preparation process, bio-refractory, biological incompatibility and toxicity (Lei et al, 2018;Masruchin et al, 2018;Pan et al, 2015;Sarrazin et al, 2007), but also involved serious environmental problems due to di culty in biodegradation.…”

Section: Introductionmentioning

confidence: 99%

High stability and recyclable cellulose-based fluorescent paper derived from waste bagasse for anti-counterfeiting

et al. 2022

View full text Add to dashboard Cite

Developing uorescent paper-based materials with recyclable, environmental friendly, excellent stable and uniform performances are still an urgent challenge at present. Herein, a simple, green, and high-e ciency method for the fabrication of high stability and recyclable cellulose-based uorescent paper from waste bagasse via Hantzsch reaction is proposed. Compared to the pristine paper, the surface modi cation showed little effect on the morphology, mechanical properties, thermal performance and appearance. Meanwhile, the good writing and printing ability of the paper still remained. The prepared paper showed excellent uorescence performance, which is very stable even treated with acidic, alkaline, and different solvents for 24 h. It can be processed into different security patterns. What's more, this strategy could be extended by using other compositions with aldehyde groups. Considering their functional and recyclable features, as well as the convenient and e cient fabrication process, our uorescent papers hold great potential to be applied in many elds such as anti-counterfeiting.

show abstract

Surface modification of TEMPO-oxidized cellulose nanofibrils for composites to give color change in response to pH level

Cited by 22 publications

References 34 publications

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

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

Surface Modification of Tempo-Mediated Cellulose Nanofibril With Octadecylamine

High stability and recyclable cellulose-based fluorescent paper derived from waste bagasse for anti-counterfeiting

Contact Info

Product

Resources

About