Photocatalytic Conversion of Xylose to Xylitol over Copper Doped Zinc Oxide Catalyst.

Rohini, B. and Umesh Hebbar, H. (2021) Photocatalytic Conversion of Xylose to Xylitol over Copper Doped Zinc Oxide Catalyst. Catalysis Letters.

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Abstract

In the present investigation, photocatalytic conversion of xylose by Copper (Cu) doped Zinc oxide (ZnO) was investigated under Ultraviolet Light emitting diode (UVA-LED) illumination. Photocatalysts were synthesized successfully by chemical precipitation method. The synergistic efect of 5 wt% Cu doped ZnO and addition of glycerol as oxygen scavenger improved conversion. The results from our study showed that %conversion of xylose, glycerol are 33.72%, 33.61% respectively and % product yield of 88.79% of Dihydroxyacetone(DHA), 19.87% of xylitol and 13.29% of erythritol were achieved when 1.66 g/L of catalyst were used in ambient conditions under 7 h of UVA-LED illumination. The varied temperature to 50±2 °C had decreased efect on the product yield when compared to that of the reaction carried out at 30±2 °C. High Resolution Mass spectrometry results confrmed the presence of the products xylitol, erythritol and DHA formed during the course of the photocatalytic reaction.

Item Type:	Article
Uncontrolled Keywords:	Biomass conversion · Photocatalysis · UVA-LED · Xylose · Cu doped ZnO · Glycerol · Xylitol
Subjects:	600 Technology > 08 Food technology > 25 Sugar/Starch/Confectionery
Divisions:	Food Engineering
Depositing User:	Food Sci. & Technol. Information Services
Date Deposited:	08 Feb 2021 04:36
Last Modified:	08 Feb 2021 04:36
URI:	http://ir.cftri.res.in/id/eprint/14787

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