Surface area and porosity characterization of nano-scaled cellulose from different acid treatments

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Enzyme accessibility has been considered as a key factor in the enzymatic conversion of cellulose biomass into biofuel. Cellulase enzyme hydrolysis ability depends to a large extent on the surface area and porosity of cellulose which determines the susceptibility of cellulose to cellulases. Quantifying the porous structure of cellulose is also fundamental to understanding a wide range of binding interactions in the development of cellulose nanocomposites which may contain various chemical and biological additives. The objective of this work was to characterize the surface area and porosity of cellulose nanowhiskers (CNWs) from different acid treatments (H2SO4/HCl) by N2 adsorption technique. The surface area and porosity of CNWs were compared in an attempt to determine how different treatments affect the structure of CNWs. It was observed that CNWs exhibited increased surface area and porosity than unhydrolyzed cellulose. Mesopores existed in the CNWs generated by H2SO4 treatment; and both mesopores and micropores were present in CNWs produced by HCl treatment.

Original languageEnglish (US)
Title of host publicationAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2011, ASABE 2011
PublisherAmerican Society of Agricultural and Biological Engineers
Pages3601-3610
Number of pages10
Volume5
ISBN (Print)9781618391568
StatePublished - 2011
EventAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2011 - Louisville, KY, United States
Duration: Aug 7 2011Aug 10 2011

Other

OtherAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2011
CountryUnited States
CityLouisville, KY
Period8/7/118/10/11

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All Science Journal Classification (ASJC) codes

  • Agronomy and Crop Science

Cite this

Guo, J., & Catchmark, J. M. (2011). Surface area and porosity characterization of nano-scaled cellulose from different acid treatments. In American Society of Agricultural and Biological Engineers Annual International Meeting 2011, ASABE 2011 (Vol. 5, pp. 3601-3610). American Society of Agricultural and Biological Engineers.