Abstract
Controllable graphene aerogel with relative homopores was fabricated with the assistance of block copolymer (P123) and vacuum drying. Thermogravimetric analysis was conducted to obtain the optimum temperature for template removal. The Brunauer–Emmett–Teller method, scanning electron microscopy, Raman spectroscopy, Fourier transform infrared spectroscopy and X-ray diffraction were performed to characterise the obtained aerogel. Results showed that P123 was successfully removed on the surface, and a controlled multi-level porous structure was generated. The optimum ratio of GO and P123 was 1:4 (ca. 2.5 mg/ml), and the adsorption capacities of the produced aerogels for methylene blue, oils and organic solvents were excellent and superior to those aerogels fabricated by traditional approaches. Adsorption kinetics were also further studied.
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Acknowledgements
This project was supported by Natural Science Foundation of Shanghai (Project Number 14ZR1440500), Shanghai Leading Academic Discipline Project (Project Number J51503), National Natural Science Foundation of China (Project Number 20976105), Shanghai Association for Science and Technology Achievements Transformation Alliance Program (Project Number LM201559), Shanghai Talent Development Funding (Project Number 201335), Collaborative Innovation Fund of SIT (Project Number XTCX2015-9).
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Ren, J., Zhang, X., Lu, D. et al. Fabrication of controllable graphene aerogel with superior adsorption capacity for organic solvents. Res Chem Intermed 44, 5139–5152 (2018). https://doi.org/10.1007/s11164-018-3414-0
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DOI: https://doi.org/10.1007/s11164-018-3414-0