DOI QR코드

DOI QR Code

UV-INDUCED POLYMERIZATION OF SIZE-CONTROLLED PLATINUM/POLY[STYRENE-DIVINYLBENZENE-TRI(PROPYLENE GLYCOL) DIACRYLATE] HYDROPHOBIC CATALYST BEADS IN MICROFLUIDICS

  • WEI, JUN (School of Nuclear Science and Technology, University of Science and Technology of China) ;
  • LI, XIANG (School of Nuclear Science and Technology, University of Science and Technology of China) ;
  • SONG, TONG (School of Nuclear Science and Technology, University of Science and Technology of China) ;
  • SONG, ZI-FAN (School of Nuclear Science and Technology, University of Science and Technology of China) ;
  • CHANG, ZHEN-QI (School of Nuclear Science and Technology, University of Science and Technology of China) ;
  • MENG, DA-QIAO (Si-Chuan Institute of Materials and Technology)
  • 투고 : 2015.01.12
  • 심사 : 2015.06.08
  • 발행 : 2015.12.25

초록

The catalytic exchange of hydrogen isotopes between hydrogen and water has been known to be a very useful process for the separation of tritium from tritiated water. For the process, a highly active hydrophobic catalyst is needed. This study provides an effective fabrication method of size-controlled platinum/poly[styrene-divinylbenzene-tri(propylene glycol) diacrylate] [Pt/poly(SDB-TPGDA)] hydrophobic catalyst beads with a narrow size distribution. Platinum nanoparticles were prepared by ${\gamma}$-ray-induced reduction in the aqueous phase first, and then uniformly dispersed in SDB-TPGDA comonomer after the hydrophobization of platinum nanoparticles with alkylamine stabilizers. The porous Pt/poly(SDB-TPGDA) hydrophobic catalyst beads were synthesized by the UV-initiated polymerization of the mixture droplets prepared in a capillary-based microfluidic system. The size of as-prepared catalyst beads can be controlled in the range of $200-1,000{\mu}m$ by adjusting the flow rate of dispersed and continuous phases, as well as the viscosity of the continuous phase. Sorbitan monooleate and cyclohexanol were used as coporogens to control the porosities of the catalyst beads.

키워드

과제정보

연구 과제 주관 기관 : Ministry of Science and Technology, Nature Science Foundation of China

참고문헌

  1. J.M. Miller, W.R.C. Graham, S.L. Celovsky, J. Tremblay, A.E. Everatt, Design and operational experience with a pilotscale CECE detritiation process, Fusion Sci. Technol. 41 (2002) 1077-1081. https://doi.org/10.13182/FST02-A22749
  2. J. Braet, A. Bruggeman, Development of an improved hydrophobic catalyst for liquid phase catalytic exchange, Fusion Engineering, in: 20th IEEE/NPSS Symposium on. San Diego, CA, USA, Oct. 14-17, 2003, 2003.
  3. S. Paek, D.H. Ahn, H.J. Choi, K.R. Kim, M. Lee, S.P. Yim, H. Chung, K.M. Song, S.H. Sohn, The performance of a trickle-bed reactor packed with a Pt/SDBC catalyst mixture for the CECE process, Fusion Eng. Des. 82 (2007) 2252-2258. https://doi.org/10.1016/j.fusengdes.2007.07.001
  4. I. Popescu, G. Ionita, I. Stefanescu, C. Varlam, D. Dobrinescu, I. Faurescu, Improved characteristics of hydrophobic polytetrafluoroethylene-platinum catalysts for tritium recovery from tritiated water, Fusion Eng. Des. 83 (2008) 1392-1394. https://doi.org/10.1016/j.fusengdes.2008.05.026
  5. K.M. Song, S.H. Sohn, D.W. Kang, S.W. Paek, D.H. Ahn, Installation of liquid phase catalytic exchange columns for the Wolsong tritium removal facility, Fusion Eng. Des. 82 (2007) 2264-2268. https://doi.org/10.1016/j.fusengdes.2007.07.026
  6. Q.Q. Liu, L. Wang, A. Xiao, Research progress in macroporous styrene-divinylbenzene co-polymer microspheres, Des. Monomers Polym. 10 (2007) 405-423.
  7. S. Hu, J. Hou, L. Xiong, K. Weng, X. Ren, Y. Luo, Preparation and characterization of hydrophobic Pt-Fe catalysts with enhanced catalytic activities for interface hydrogen isotope separation, J. Hazard. Mater. 209 (2012) 478-483.
  8. S. Hu, J. Hou, L. Xiong, K. Weng, T. Yang, Y. Luo, Hydrophobic Pt catalysts with different carbon substrates for the interphase hydrogen isotope separation, Sep. Purif. Technol. 77 (2011) 214-219. https://doi.org/10.1016/j.seppur.2010.12.008
  9. R. Shimizu, A. Nibe, K. Sawada, Y. Enokida, I. Yamamoto, Preparation of hydrophobic platinum catalysts using a water-in-$CO_2$ microemulsion, J. Supercrit. Fluid. 44 (2008) 109-114. https://doi.org/10.1016/j.supflu.2007.07.024
  10. A. Henglein, Radiolytic preparation of ultrafine colloidal gold particles in aqueous solution: optical spectrum, controlled growth, and some chemical reactions, Langmuir 15 (1999) 6738-6744. https://doi.org/10.1021/la9901579
  11. A.D. Belapurkar, S. Kapoor, S.K. Kulshreshtha, J.P. Mittal, Radiolytic preparation and catalytic properties of platinum nanoparticles, Mater. Res. Bull. 36 (2001) 145-151. https://doi.org/10.1016/S0025-5408(01)00499-8
  12. C.A. Serra, Z.Q. Chang, Microfluidic-assisted synthesis of polymer particles, Chem. Eng. Technol. 31 (2008) 1099-1115. https://doi.org/10.1002/ceat.200800219
  13. X. Wang, S. Xu, J. Zhou, W. Xu, A rapid phase transfer method for nanoparticles using alkylamine stabilizers, J. Colloid Interf. Sci. 348 (2010) 24-28. https://doi.org/10.1016/j.jcis.2010.03.068
  14. F. Osterloh, H. Hiramatsu, R. Porter, T. Guo, Alkanethiolinduced structural rearrangements in silica-gold core-shelltype nanoparticle clusters: an opportunity for chemical sensor engineering, Langmuir 20 (2004) 5553-5558. https://doi.org/10.1021/la0348719
  15. Z.F. Song, J. Wei, X. Li, W.Y. Zhou, Z.Q. Chang, C.A. Serra, Synthesis of size-controlled Pt/C/PTFE hydrophobic catalyst pellets in a capillary-based microfluidic system, Int. J. Hydrogen Energ. 39 (2014) 16944-16952. https://doi.org/10.1016/j.ijhydene.2014.08.045
  16. Handbook of X-ray Photoelectron Spectroscopy, by Perkin-Elmer corporation, Physical Electronics Division, 1992, printed in USA.
  17. I.C. Poinescu, C. Beldie, C. Vlad, Styrene-Divinylbenzene Copolymers: Influence of the Diluents on Network Porosity, J. Appl. Polym. Sci. 29 (1984) 23-34. https://doi.org/10.1002/app.1984.070290103
  18. G.H. Ma, W.Q. Zhou, T.Y. Gu, Z.G. Su, Synthesis of Macroporous Poly(styrene-divinyl benzene) Microspheres by Surfactant Reverse Micelles Swelling Method, Polymer 48 (2007) 1981-1988. https://doi.org/10.1016/j.polymer.2007.02.003
  19. C.M. Cheng, F.J. Micale, J.W. Vanderhoff, M.S. Elaasser, Pore Structural Studies of Monodisperse Porous Polymer Particles, J. Colloid Interf. Sci. 150 (1992) 549-558. https://doi.org/10.1016/0021-9797(92)90223-9