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Korean Carbon Society (한국탄소학회)
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Facile preparation of self-assembled wool-based graphene hydrogels by electron beam irradiation

  • 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)
  • Received : 2014.03.16
  • Accepted : 2014.03.27
  • Published : 2014.04.30
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Abstract

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.

Keywords

References

  1. Novoselov KS, Geim AK, Morozov SV, Jiang D, Zhang Y, Dubonos SV, Grigorieva IV, Firsov AA. Electric field effect in atomically thin carbon films. Science, 306, 666 (2004). http://dx.doi.org/10.1126/science.1102896.
  2. Geim AK, Novoselov KS. The rise of graphene. Nat Mater, 6, 183 (2007). http://dx.doi.org/10.1038/nmat1849.
  3. Geim AK. Graphene: status and prospects. Science, 324, 1530 (2009). http://dx.doi.org/10.1126/science.1158877.
  4. Chen H, Muller MB, Gilmore KJ, Wallace GG, Li D. Mechanically strong, electrically conductive, and biocompatible graphene paper. Adv Mater, 20, 3557 (2008). http://dx.doi.org/10.1002/adma.200800757.
  5. Chen C, Yang QH, Yang Y, Lv W, Wen Y, Hou PX, Wang M, Cheng HM. Self-assembled free-standing graphite oxide membrane. Adv Mater, 21, 3007 (2009). http://dx.doi.org/10.1002/adma.200803726.
  6. Li X, Zhang G, Bai X, Sun X, Wang X, Wang E, Dai H. Highly conducting graphene sheets and Langmuir-Blodgett films. Nat Nanotechnol, 3, 538 (2009). http://dx.doi.org/10.1038/nnano.2008.210.
  7. Shen JF, Hu YZ, Li C, Qin C, Shi M, Ye MX. Layer-by-layer self-assembly of graphene nanoplatelets. Langmuir, 25, 6122 (2009). http://dx.doi.org/10.1021/la900126g.
  8. Hu H, Zhao Z, Wan W, Gogotsi Y, Qiu J. Ultralight and highly compressible graphene aerogels. Adv Mater, 25, 2219 (2013). http://dx.doi.org/10.1002/adma.201204530.
  9. Qian Y, Ismail IM, Stein A. Ultralight, high-surface-area, multifunctional graphene-based aerogels from self-assembly of graphene oxide and resol. Carbon, 68, 221 (2014). http://dx.doi.org/10.1016/j.carbon.2013.10.082.
  10. Abad LV, Relleve LS, Aranilla CT, Dela Rosa AM. Properties of radiation synthesized PVP-kappa carrageenan hydrogel blends. Radiat Phys Chem, 68, 901 (2003). http://dx.doi.org/10.1016/S0969-806X(03)00164-6.
  11. Park M, Shin HK, Kim BS, Pant B, Barakat NAM, Kim HY. Facile preparation of graphene induced from electron-beam irradiated graphite. Mater Lett, 105, 236 (2013). http://dx.doi.org/10.1016/j.matlet.2013.04.027.
  12. Aluigi A, Vineis C, Varesano A, Mazzuchetti G, Ferrero F, Tonin C. Structure and properties of keratin/PEO blend nanofibres. Eur Polym J, 44, 2465 (2008). http://dx.doi.org/10.1016/j.eurpolymj.2008.06.004.
  13. Park M, Kim BS, Shin HK, Park SJ, Kim HY. Preparation and characterization of keratin-based biocomposite hydrogels prepared by electron beam irradiation. Mater Sci Eng C, 33, 5051 (2013). http://dx.doi.org/10.1016/j.msec.2013.08.032.
  14. Hummers WS, Jr., Offeman RE. Preparation of graphitic oxide. J Am Chem Soc, 80, 1339 (1958). http://dx.doi.org/10.1021/ja01539a017.
  15. Cardamone JM. Investigating the microstructure of keratin extracted from wool: peptide sequence (MALDI-TOF/TOF) and protein conformation (FTIR). J Mol Struct, 969, 97 (2010). http://dx.doi.org/10.1016/j.molstruc.2010.01.048.
  16. Li R, Liu C, Ma J. Studies on the properties of graphene oxide-reinforced starch biocomposites. Carbohydr Polym, 84, 631 (2011). http://dx.doi.org/10.1016/j.carbpol.2010.12.041.
  17. Zhang K, Zhang LL, Zhao XS, Wu J. Graphene/polyaniline nanofiber composites as supercapacitor electrodes. Chem Mater, 22, 1392 (2010). http://dx.doi.org/10.1021/cm902876u.
  18. Hu J, Chen G, Lo IM. Removal and recovery of Cr(VI) from wastewater by maghemite nanoparticles. Water Res, 39, 4528 (2005). http://dx.doi.org/10.1016/j.watres.2005.05.051.

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