Journal
BIORESOURCE TECHNOLOGY
Volume 102, Issue 19, Pages 8939-8944Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2011.07.032
Keywords
Graphite oxide; Transesterification; Calcium oxide; Biodiesel
Funding
- Development Project of Science and Technology of Jilin Province [20070115, 201105009]
- Specialized Research Fund for the Doctoral Program of Higher Education [20090061120024]
- National Natural Science Foundation of China [20773050, 21003059]
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Graphite oxide (GO) supported CaO catalysts were prepared and successfully applied to the transesterification of soybean oil with methanol. The supports and resultant catalysts were characterized using X-ray diffraction (XRD), transmission electron microscopy (TEM), N(2) adsorption, thermogravimetry (TG), X-ray photoelectron spectroscopy (XPS), temperature-programed desorption (TPD) and Fourier-transform infrared spectroscopy (FT-IR). The GO supported CaO catalysts exhibited excellent catalytic activity and were easily regenerated by simple heat-treatment. The oxygen-containing groups (i.e., hydroxyl, epoxide groups and carboxyl groups) present on the surface of GO likely act as anchoring centers for CaO. This work demonstrates that graphite oxide is an effective host material of catalytically active CaO nanoparticles for the transesterification of soybean oil with methanol to produce biodiesel. (C) 2011 Elsevier Ltd. All rights reserved.
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