Enhanced conversion of glucose to fructose over naturalattapulgite catalyst promoted by CeO2 in water

Abstract Fructose is an important platform compound for the production of chemicals and renewable fuels. Here, the CeO 2 /ATP catalysts were developed for glucose isomerization in water. The effects of CeO 2 loading, glucose concentration and the catalyst dosage to glucose ratio on the activity for the reaction were investigated. Glucose was easily transformed over ATP in the presence of CeO 2 , and the 10 % CeO 2 /ATP catalyst exhibited a good fructose yield of 36.4 %. Meanwhile, the reaction activity of glucose was affected by glucose concentration and the catalyst dosage to glucose ratio, and more fructose would be generated at lower glucose concentration, wherein the highest yield of fructose was obtained 39.2 % at 5 % of glucose solution with the catalyst dosage to glucose ratio of 0.1. In addition, the characterization resultsrevealed that CeO 2 had a positive interaction with ATP on the adjustment of its structural properties and the amount and distribution of basic sites, and therefore facilitated glucose isomerization.