05/02144 Acetylation of sugarcane bagasse using NBS as a catalyst under mild reaction conditions for the production of oil sorption-active materials

Abstract2,3-Dichloro-1,4-naphthoquinone and tetrabromo- or tetrachloro-1,4-benzoquinone were converted into pyridinium enolate betaines by reaction with pyridine or 4,4′-bipyridine. The reaction conditions were applied to poly-(4-vinylpyridine) and a modified Merrifield resin to obtain functionalized polymeric materials. These were examined in thermogravimetric analyses. Reversible photocatalytic electron transfer reactions in the presence of proflavinium and EDTA as sensitizer and sacrificial donor, respectively, were examined. All monomeric and polymeric materials, except for one, proved to be active.

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Characteristics and oil sorption effectiveness of kapok fibre, sugarcane bagasse and rice husks: oil removal suitability matrix

Environmental Technology ◽

10.1080/09593330.2011.579185 ◽

2012 ◽

Vol 33 (4) ◽

pp. 481-486 ◽

Cited By ~ 89

Author(s):

Norizan Ali ◽

Mohanad El-Harbawi ◽

Ayman Abo Jabal ◽

Chun-Yang Yin

Keyword(s):

Sugarcane Bagasse ◽

Oil Removal ◽

Rice Husks ◽

Oil Sorption

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Effect of substrate geometry on oil sorption capacity of raw and chemically modified jute fibre

IRA-International Journal of Technology & Engineering (ISSN 2455-4480) ◽

10.21013/jte.v3.n3.p4 ◽

2016 ◽

Vol 3 (3) ◽

Author(s):

Mangesh D. Teli ◽

Sanket P. Valia

Keyword(s):

Oleic Acid ◽

Sorption Capacity ◽

Jute Fibre ◽

Acid Modification ◽

Acrylate Monomer ◽

Active Materials ◽

Oil Sorption ◽

Chemically Modified ◽

Synthetic Materials ◽

Oil Spill Cleanup

<div><p><em>In this paper jute fibre was modified with three different chemical modification techniques namely acetylation using acetic anhydride, grafting using butyl acrylate monomer and fatty acid modification using oleic acid to increase the oil sorption capacity of the fibre. All the above modifications were carried out in fibrous as well as nonwoven form to study the effect of substrate geometry on oil sorption capacity. It was found that oil sorption capacity of the chemically modified jute fibres was higher than that of the raw fibres and in case of the chemically modified nonwoven it was much higher than the raw as well as modified loose fibres. Reusability of the modified substrates was also tested and it was found that all the substrates could be squeezed to recover oil and reused at least three times. </em><em>Nonwoven fabric’s substrate geometry permits easy rolling-in and rolling-out of the fabric for the recovery of the oil from the surface of the water. </em><em>Also these oil sorption-active materials being biodegradable can be used to substitute non-biodegradable synthetic materials in oil spill cleanup.</em></p></div>

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The Preparation of Sugarcane Bagasse Microcrystaline Cellulose in Subcritical Water/CO2

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.396-398.1769 ◽

2011 ◽

Vol 396-398 ◽

pp. 1769-1772

Author(s):

Ke Lin Huang ◽

Ben Wang ◽

Xiao Yu Peng ◽

Ze Fen Wang ◽

Ke Xian Li ◽

...

Keyword(s):

Reaction Time ◽

Sugarcane Bagasse ◽

Reaction Temperature ◽

Subcritical Water ◽

Reaction Conditions ◽

Reaction Pressure ◽

Good Thermal Stability ◽

Solid Ratio ◽

Optimum Reaction ◽

Ft Ir

Sugarcane bagasse microcrystalline cellulose (SBMC) was first prepared under subcritical Water/CO2 by degradation of sugarcane bagasse cellulose (SBC). The obtained products were characterized by FT-IR, XRD and TGA and the results showed that the amorphous parts of SBC was easily decomposed, and yet the crystal parts kept a good form all along during the degradation, which demonstrated SBMC had good thermal stability. Furthermore, the reaction temperature, reaction time, reaction pressure and liquid-solid ratio were systematically investigated during the work. The optimum reaction conditions are as follows: the reaction temperature was 200°C; the reaction time was 60 min; the reaction pressure was 2 MPa and the liquid-solid ratio was 40:1.

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Nanomaterials for Food and Agriculture

Applications of Nanomaterials in Agriculture, Food Science, and Medicine - Advances in Chemical and Materials Engineering ◽

10.4018/978-1-7998-5563-7.ch004 ◽

2021 ◽

pp. 75-97

Author(s):

Mintu Maan Dutta

Keyword(s):

Green Chemistry ◽

Crop Yield ◽

Toxic Chemicals ◽

Nano Materials ◽

Food Sector ◽

Reaction Conditions ◽

Active Materials ◽

Food And Agriculture ◽

Yield And Quality ◽

Synthesis Of Nanomaterials

Nanotechnology has emerged as one of the most promising tools for the present revolution in the field of agri-food sector. Engineered nano materials (ENMs) are a part of nanotechnology which has led to the invention of smart and active materials such as nanosensors, nanofertilizers, nanopesticides, etc. Bioinspired and biosynthesis approach for the synthesis of nanomaterials using various eco-friendly green chemistry methods has overcome the various problem associated with the use of toxic chemicals and harsh reaction conditions. Thus, use of these nanomaterial in this sector has tremendously increased the crop yield and quality thereby reducing the use of toxic crop protecting agents.

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Ultrasonically-Assisted Dissolution of Sugarcane Bagasse during Dilute Acid Pretreatment: Experiments and Kinetic Modeling

Energies ◽

10.3390/en13215627 ◽

2020 ◽

Vol 13 (21) ◽

pp. 5627

Author(s):

Deslin Nadar ◽

Kubendren Naicker ◽

David Lokhat

Keyword(s):

Reaction Time ◽

Sugarcane Bagasse ◽

Reaction Vessel ◽

Dilute Acid Pretreatment ◽

Dilute Acid ◽

Acid Pretreatment ◽

Reaction Conditions ◽

Physicochemical Processes ◽

Solids Loading ◽

Mass Losses

Ultrasonic irradiation is known to enhance various physicochemical processes. In this work, the effect of ultrasound on the dissolution of sugarcane bagasse was studied, with the specific aims of quantifying the effect at low solids loading and mild reaction conditions, and determining whether the enhancement of dissolution by ultrasound is independent of temperature. The effects of agitation speed, reaction time, and sonication were examined on the dissolution of the biomass substrate at varying reaction temperatures during the pretreatment process. Sugarcane bagasse was mixed with a 0.3 M solution of sulfuric acid in a reaction vessel to undergo pretreatment. A kinetic model was applied to the mass dissolution of the biomass, as sonicated runs showed higher mass losses at each reaction time, compared to the non-sonicated runs. The ultrasonic enhancement in mass dissolution was seen to increase for an increase in the reaction time. It was observed that the induction period for the dissolution was eliminated by the application of ultrasound. Ultrasound was found to be more effective than temperature at enhancing mass dissolution at low solids loadings, and the effect of ultrasound was also found to be dependent on the temperature employed.

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