I am wondering if it is possible to characterize nanocellulose using UV-Vis spectroscopy. Is it also possible to characterize just pure cellulose using also UV-VIS spec?
What kind of information do you expect from such a study? Cellulose contains mostly saturated bonds and it cannot be easily dissolved only after chemical modification. In pristine state cellulose will absorb only in the UV and due to phase heterogeneity in a suspension it will strongly scatter light. The only I can imagine n this respect is the observation of spectral changes of dye molecules after adsorption. Even that could be done in reflection mode only.
Thanks Gyorgy. I am now reflecting on this. I was hoping to achieve optical properties of Cellulose. Your answer is rich with information and I have consulted some reviews on this post your response.
Dear Andile,
Nanocellulose suspensions, obtained by mechanical defibrillation of wood pulp, are usually characterized by UV/VIS (200-800nm) in order to get some information on the defibrillation process. If the NFC is predominantly composed of nanofibrils then you'll have high %T, so technically the UV readings can be used to evaluate on the quality of NFC suspensions. Pls give a quick reading on the manuscript by Kangas et al., 2014. Hope this helps, Ana
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