Affiliation:
1. School of Petroleum Engineering, Changzhou University, Changzhou 213016, People’s Republic of China
2. Laboratory of Energy Materials and Low Carbon Emission, Changzhou University, Changzhou 213016, People’s Republic of China
Abstract
Graphene aerogel (GA) and N doped GA (N-GA) are prepared by the hydrothermal method with various times, and their adsorption abilities are estimated by using gasoline, ethyl acetate, and phenol. The adopted hydrothermal reaction time inflicts a fundamental influence on the Brunauer-Emmett-Teller (BET) area and porosities of the resulting samples. Moreover, the residual amount of surface functional groups of GA and the doping ratio of the N element are also controlled by the reaction time, which enhances the interaction between the N-GA and various adsorbates as well as the adsorption capacities by the heighten polarity. The presence of the N element further enhances the obtained adsorption performances because of the increased active sites, although the BET area and porosity of the N-GA slightly decrease. The optimized sample displays high adsorption properties and potential application prospects, and the adsorption amounts of gasoline, ethyl acetate, and phenol by using N-GA-5 reach 8.4, 11.3, and 12.2 g g−1, respectively.
Funder
Qinglan Project of Jiangsu Province of China
Postgraduate Research and Practice Innovation Program of Jiangsu Province
Subject
General Physics and Astronomy