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Exfoliated Graphite for Spilled Heavy Oil Recovery
Michio Inagaki,Masahiro Toyoda,Norio Iwashita,Yoko Nishi,Hidetaka Konno 한국탄소학회 2001 Carbon Letters Vol.2 No.1
Exfoliated graphite was found to sorb selectively a large amount of heavy oil, about 80 g of heavy oil floating on water per 1 g of exfoliated graphite, which is highly possible to be applied to recovering spilled heavy oil. Sorption capacity, selectivity and kinetics of exfoliated graphite were reviewed. The possibility of recovery of heavy oil from exfoliated graphite and recycling of both recovered heavy oil and exfoliated graphite was also discussed. Its sorption performance was compared with other materials which were reported to show sorption of heavy oil.
My life and carbon with excellent advisors, colleagues and students
Michio Inagaki 한국탄소학회 2014 Carbon Letters Vol.15 No.2
I started carbon research in April, 1958 as a graduate student in the laboratory of Prof. T. Noda at Nagoya University. My focus was on the graphitization of various carbon materials using X-ray diffraction. I worked on carbon materials at Nagoya University, Toyohashi University of Technology, Hokkaido University, Aichi Institute of Technology and then in my own home; I did this for more than 50 years. During this period, I fortunately met many excellent advisors, collaborators and students, and now have many good memories of them. In the beginning, I had to use hand-made X-ray diffraction equipment and I was so severely irradiated by X-rays that my doctor did not want to tell me how severely reduced was the number of my leucocytes (white blood), because he was afraid that I would be shocked. Before long, we were able to get an automatic diffractometer (Norelco) and could work under safer conditions. Prof. Noda was very generous, he supplied me with vitamin-B tablets to restore my leucocyte level, but regarding science, he was severe. At every meeting of the Carbon Society of Japan, he listened to speakers from the front row and asked frank questions. Frequently these questions were uncomfortable for the presenters. Even when I was presenting papers with him, he questioned my presentation.
Exfoliated Graphite for Spilled Heavy Oil Recovery
Inagaki, Michio,Toyoda, Masahiro,Iwashita, Norio,Nishi, Yoko,Konno, Hidetaka Korean Carbon Society 2001 Carbon Letters Vol.2 No.1
Exfoliated graphite was found to sorb selectively a large amount of heavy oil, about 80 g of heavy oil floating on water per 1 g of exfoliated graphite, which is highly possible to be applied to recovering spilled heavy oil. Sorption capacity, selectivity and kinetics of exfoliated graphite were reviewed. The possibility of recovery of heavy oil from exfoliated graphite and recycling of both recovered heavy oil and exfoliated graphite was also discussed. Its sorption performance was compared with other materials which were reported to show sorption of heavy oil.
Exfoliated graphite: room temperature exfoliation and their applications
Toyoda Masahiro,Hou Shiyu,Huang Zheng-Hong,Inagaki Michio 한국탄소학회 2023 Carbon Letters Vol.33 No.2
The preparation and exfoliation of graphite oxide at low temperatures (near room temperature) to produce exfoliated graphite (EG) instead of rapid heating to a high temperature (conventional process) are reviewed. The exfoliation by microwave irradiation, electrochemical exfoliation and surfactant-assisted exfoliation of graphite are also included because these techniques can be applied under ambient atmosphere, although last two techniques were mainly applied for thinning the graphite flakes to obtain “graphene” flakes. The applications of the resultant exfoliated graphite (EG) for oil/water separation, adsorptive removal of the environment pollutants and microwave shielding are shortly reviewed.