Expeditious isomerization of glucose to fructose in aqueous media over sodium titanate nanotubes

Kumar, Sandeep and Nepak, Devadutta and Kansal, Mallikarjuna and Elumalai, Sasikumar (2018) Expeditious isomerization of glucose to fructose in aqueous media over sodium titanate nanotubes. RSC Advances, 8 (53). pp. 30106-30114. ISSN 2046-2069

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Isomerization reaction of glucose to fructose over sodium titanate nanotubes (Na-TNTs) as a Lewis base catalyst was studied. Analytical instruments recorded the specific structural, textural and basic properties of the as-synthesized Na-TNTs. Furthermore, studying the catalytic isomerization performance of the Na-TNTs confirmed their high catalytic efficiency and suitability in aqueous media. The catalyst prompted rapid glucose isomerization within 2 min by achieving nearly half of the maximum yield, whereas with a prolonged reaction up to 15 min the maximum glucose conversion could be reached with 31.26% fructose yield and 65.26% selectivity under relatively lower operating conditions (100 °C and 10% wt catalyst dose). However, the recyclability performance of the catalyst was not impressive due to the accelerated leaching of cations and surface retention of carbonaceous content, resulting in ∼16% reduced yield after 4 runs. A simple regeneration technique using NaOH led to the initial catalytic activity being totally regained. Overall, a titania-based catalyst (preferably nanotube structured sodium titanate) was shown as a potential catalyst for large-scale demonstration of glucose isomerization to achieve high fructose productivity.

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IITH Creators:
IITH CreatorsORCiD
Item Type: Article
Subjects: Chemical Engineering
Divisions: Department of Chemical Engineering
Depositing User: Team Library
Date Deposited: 18 Sep 2018 10:23
Last Modified: 18 Sep 2018 10:23
URI: http://raiith.iith.ac.in/id/eprint/4444
Publisher URL: http://doi.org/10.1039/c8ra04353a
OA policy: http://www.sherpa.ac.uk/romeo/issn/2046-2069/
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