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논문 기본 정보

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동향자료
저자정보
Park, Mira (Department of Organic Materials and Fiber Engineering, Chonbuk National University) Pant, Bishweshwar (Department of BIN Fusion Technology, Chonbuk National University) Choi, Jawun (Department of BIN Fusion Technology, Chonbuk National University) Park, Yong Wan (Korea Institute for Knit Industry) Lee, Chohye (Department of BIN Fusion Technology, Chonbuk National University) Shin, Hye Kyoung (Department of Chemistry, Inha University) Park, Soo-Jin (Department of Chemistry, Inha University) Kim, Hak-Yong (Department of BIN Fusion Technology, Chonbuk National University)
저널정보
한국탄소학회 Carbon letters Carbon letters 제15권 제2호
발행연도
2014.1
수록면
136 - 141 (6page)

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Three dimensional self-assembled graphene hydrogels were easily fabricated by electron beam irradiation (EBI) using an aqueous solution of wool/poly(vinyl alcohol) and graphene oxide (GO). After exposure to various levels of EBI radiation, the highly porous, self-assembled, wool-based graphene hydrogels were characterized using scanning electron microscopy and Fourier-transform infrared spectroscopy; to determine the gel fraction, degree of swelling, gel strength, kinetics-of-swelling analyses and removal of hexavalent chromium (Cr(VI)) from the aqueous solution. X-ray diffraction results confirmed that EBI played a significantly important role in reducing GO to graphene. The adsorption equilibrium of Cr(VI) was reached within 80 min and the adsorption capacity was dramatically increased as the acidity of the initial solution was decreased from pH 5 to 2. Changes in ionic strength did not exert much effect on the adsorption behavior.

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