Abstract
Zirconium dioxide was impregnated into a commercial activated carbon (AC) by hydrothermal treatment employing an aqueous ZrOCl2•8H2O solution. The ZrO2/AC composites thus prepared were tested as adsorbents for dibenzothiophene (DBT) from a model diesel fuel. In comparison to the pure AC, impregnation of ZrO2 was found to lead to a ca. 17% increase in the adsorption capacity. The optimal ZrO2 loading and hydrothermal pH were determined as 0.1 mmol/g and 7, respectively. The spent adsorbents were regenerated by toluene washing, with the ZrO2/AC composite exhibiting a higher adsorptive capacity than pure AC even after three such recycles. The ZrO2/AC composite was also characterized by the physical adsorption of nitrogen and Boehm titrations. The results indicated that surface acidic sites on the impregnated ZrO2 may play an important role in the improved desulphurization performance of the composite.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
