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Ananda Amarasekara
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Professor, Interim Head Department of Chemistry and Physics
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Ananda Amarasekara - Research Gate
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Recent Works
Recent Works
(104)
Article
Interactions of Cellulose Model Compound D-Cellobiose with Selected Metal Chlorides ...
Chemistry & Physics Faculty Publications (2021)
Harshica Fernando and Ananda S. Amarasekara
Understanding interactions of metal ions with cellulose is an important step in the development of efficient catalytic methods for processing ...
Article
Vanillin based polymers: V. Poly(hydrovanilloin–urethane)
Chemistry & Physics Faculty Publications (2021)
Ananda S. Amarasekara and Rocio Garcia-Obregon
Renewable resources based hydrovanilloin [1,2-bis(4-hydroxy-3-methoxyphenyl)-1,2-ethanediol] was synthesized in 86% yield by electrochemical dimerization of vanillin in aqueous NaOH. This symmetrical ...
Article
Pyrolysis Route for the Conversion of Bacterial Cellulose to Graphene ...
Chemistry & Physics Faculty Publications (2021)
Ananda S. Amarasekara and Deping Wang
A novel route to graphene oxide (GO) is presented where the cellulosic biofilm formed at the air-water interface as a ...
Article
Catalytic upgrading of biomass derived furans
Chemistry & Physics Faculty Publications (2021)
Fang Deng and Ananda S. Amarasekara
The current interest in biomass derived renewable furan derivatives furfural and 5-hydroxymethylfurfural commonly known as biofurans is due to their ...
Article
Conversion of levulinic acid and cellulose to γ-valerolactone over Raney-Ni ...
Chemistry & Physics Faculty Publications (2021)
Ananda S. Amarasekara, Yen Maroney Lawrence, Anthony D. Fernandez, Tony L. Grady, et al.
The present study aimed to investigate the conversion of levulinic acid (LA) and cellulose (DP∼450) to γ-valerolactone (GVL) over Raney-Ni ...
Article
Iron based catalysts in biomass processing
Chemistry & Physics Faculty Publications (2020)
Hongbo Du, Fang Deng, Raghava R. Kommalapati and Ananda S. Amarasekara
The interest in the use of non-noble metal catalysis is quite relevant to biomass processing due to costs, environmental concerns ...
Article
Iron(0)-Catalyzed Hydrothermal Liquefaction of Switchgrass: the Effects of ...
Chemistry & Physics Faculty Publications (2020)
Fang Deng and Ananda S. Amarasekara
The effects of a series of co-catalysts: iron(III)chloride, zinc chloride, sodium borate, acetic acid, oxalic acid, 10% Pd-C, sodium carbonate, ...
Article
Pd/C catalyzed room-temperature, atmospheric pressure hydrogenation of furanic bio-oils ...
Chemistry & Physics Faculty Publications (2020)
Ananda S. Amarasekara and Cristian D. Gutierrez Reyes
Furanic bio-oils were produced from liquefaction of corn cobs and switchgrass using 1-(3-propylsulfonic)-3-methylimidazolium chloride catalyst in acetone at 120 °C, ...
Article
Biocatalytic reduction of 5-hydroxymethylfurfural to 2,5-furandimethanol using coconut (Cocos ...
Chemistry & Physics Faculty Publications (2020)
Ananda S. Amarasekara, Cristian D. Gutierrez Reyes and Rocio Garcia Obregon
The hexose dehydration product and important renewable feedstock 5-hydroxymethylfurfural can be biocatalytically reduced to 2,5-furandimethanol in 96% yield using coconut ...
Article
A comparison of kombucha SCOBY bacterial cellulose purification methods
Chemistry & Physics Faculty Publications (2020)
Ananda S. Amarasekara, Deping Wang and Tony L. Grady
Kombucha SCOBY pellicle formed as a waste product in the kombucha tea fermentation industry can be used as a potential ...
Article
Acidic ionic liquid catalyzed liquefactions of corn cobs and switchgrass ...
Chemistry & Physics Faculty Publications (2020)
Ananda S. Amarasekara and Cristian D.Gutierrez Reyes
The liquefaction of corn cobs and switchgrass was studied using 1-(3-propylsulfonic)-3-methylimidazolium chloride and 1-(4-butylsulfonic)-3-methylimidazolium chloride Brønsted acidic ionic liquids as ...
Article
Single reagent treatment and degradation of switchgrass using iron(III ...
Chemistry & Physics Faculty Publications (2019)
Ananda S. Amarasekara and Fang Deng
The possibility of using abundant metal chlorides as a single reagent for pretreatment and degradation of switchgrass biomass was studied. ...
Article
Homogeneous phase synthesis of chitosan silica hybrid materials in ionic ...
Chemistry & Physics Faculty Publications (2019)
Ananda S. Amarasekara and Deping Wang
Two chitosan silica hybrid materials were prepared by a two-step process in 78–84% yields using the homogeneous phase reaction of ...
Article
Ionic Liquids in Biomass Processing
Chemistry & Physics Faculty Publications (2019)
Ananda S. Amarasekara
The ionic liquids have emerged as new solvents and catalysts for processing biomass to value added chemicals and fuels. This ...
Article
Kinetics and mechanism of the solid-acid catalyzed one-pot conversion of ...
Chemistry & Physics Faculty Publications (2019)
Ananda S. Amarasekara, Loc H. Nguyen, Hongbo Du and Raghava R. Kommalapati
The kinetics and the mechanism of Dowex 50WX8 catalyzed conversion of d-fructose to 5, 5′-[oxybis(methylene)]bis[2-furaldehyde] via the intermediate 5-hydroxymethylfurfural was ...
Article
Acidic ionic liquid catalyzed liquefaction of untreated switchgrass biomass in ...
Chemistry & Physics Faculty Publications (2019)
Ananda S. Amarasekara and Fang Deng
The cellulosic fraction of untreated switchgrass was partially liquefied by using acidic ionic liquid catalysts and heating in acetone at ...
Article
BrØnsted acidic ionic liquid catalyzed one-pot conversion of cellulose to ...
Chemistry & Physics Faculty Publications (2019)
Ananda S. Amarasekara and Cristian D. Gutierrez Reyes
The degradation of cellulose was studied using 1-(3-propylsulfonic)-3-methylimidazolium chloride and 1-(4-butylsulfonic)-3-methylimidazolium chloride acidic ionic liquids as catalysts in acetone at ...
Article
Solid acid catalyzed aldol dimerization of levulinic acid for the ...
Chemistry & Physics Faculty Publications (2019)
Ananda S. Amarasekara, Bernard Wiredu, Tony L. Grady, Rocio Garcia Obregon, et al.
The acid catalyzed condensation of levulinic acid was studied using a series of solid acid catalysts: Amberlyst-15, SiO2-SO3H, Dowex50WX8, Carbon-SO3H, ...
Article
A comparison of homogeneous and heterogeneous Brønsted acid catalysts in ...
Chemistry & Physics Faculty Publications (2019)
Ananda S. Amarasekara, Shahrukh R. Ali, Harshica Fernando, Victoria Sena, et al.
Brønsted acid catalyzed condensations of meso-erythritol with aldehyde/ketones were studied using meso-erythritol:aldehyde/ketone 1:3 ratio in a Dean–Stark apparatus. The selectivity ...
Article
Hydrolysis and interactions of D-cellobiose with polycarboxylic acids
Chemistry & Physics Faculty Publications (2019)
Ananda S. Amarasekara, Bernard Wiredu and Yen Maroney Lawrence
The hydrolysis of cellulose model compound D-cellobiose was studied with a series of eight common polycarboxylic acids and two monocarboxylic ...
Article
Vanillin-based polymers: IV. Hydrovanilloin epoxy resins
Chemistry & Physics Faculty Publications (2019)
Ananda S. Amarasekara, Rocio Garcia-Obergon and Audie K. Thompson
In this study, hydrovanilloin synthesized by electrochemical dimerization of vanillin has been used as a renewable substitute for bisphenol A ...
Article
Acid catalyzed aldol condensations of ketones with glyoxylic acid: A ...
Chemistry & Physics Faculty Publications (2018)
Ananda S. Amarasekara and Uyen Ha
The acid catalyzed condensations of ketones with glyoxylic acid at 80 °C, under neat conditions gives 4-oxo-2,5-heptdienedioic acids in 56–88% ...
Article
Raney-Ni catalyzed conversion of levulinic acid to 5-methyl-2-pyrrolidone using ammonium ...
Chemistry & Physics Faculty Publications (2018)
Ananda S. Amarasekara and Yen Maroney Lawrence
Renewable biomass based levulinic acid was converted to 5-methyl-2-pyrrolidone in 94% yield by a Raney-Ni catalyzed process using ammonium formate ...
Article
Renewable polymers: Synthesis and characterization of poly(levulinic acid–pentaerythritol)
Chemistry & Physics Faculty Publications (2018)
Ananda S. Amarasekara, Uyen Ha and Nnaemeka C. Okorie
Article
1-(Alkylsulfonic)-3-methylimidazolium chloride BrÖnsted acidic ionic liquid catalyzed hydrogen ...
Chemistry & Physics Faculty Publications (2018)
Ananda S. Amarasekara and Nnaemeka C. Okorie
5-Hydroxymethylfurfural was converted to succinic anhydride in 90–92% yield by oxidation with 30% hydrogen peroxide using 10 mol% 1-(alkylsulfonic)-3-methylimidazolium chloride ...
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