Catalytic hydrodechlorination reaction of chlorophenols by Pd nanoparticles supported on graphene

详细信息    查看全文

• 作者：Wonghil Chang ; Hojun Kim ; Ga Young Lee…
• 关键词：Hydrodechlorination ; Chlorophenol ; Dichlorophenols ; Trichlorophenol ; Pd–graphene
• 刊名：Research on Chemical Intermediates
• 出版年：2016
• 出版时间：January 2016
• 年：2016
• 卷：42
• 期：1
• 页码：71-82
• 全文大小：1,138 KB
• 参考文献：1.E. Diaz, A.F. Mohedano, J.A. Casas, L. Calvo, M.A. Gilarranz, J.J. Rodriguez, Appl. Catal. B Environ. 106, 469–475 (2011)CrossRef
  2.U.G. Ahiborg, T.M. Thunberg, CRC Crit. Rev. Toxicol. 7, 1 (1980)CrossRef
  3.B. Gunawardana, N. Hinghal, P. Swedlund, Environ. Eng. Res. 16(4), 187–203 (2011)CrossRef
  4.U.S. Environmental Protection Agency, Toxicological Review of Pentachlorophenol: In Support of Summary Information on the Integrated Risk Information System (IRIS) (U.S. Environmental Protection Agency, Washington, 2010), p. 288
  5.Agency for Toxic Substances and Disease Registry, Toxicological Profile for Chloro-phenols (U.S. Department of Health and Human Services, Washington, 1999)
  6.C.B. Molina, A.H. Pizarro, M.A. Gilarranz, J.A. Casas, J.J. Rodriguez, Chem. Eng. J. 160, 578–585 (2010)CrossRef
  7.M.A. Keane, Chem. Catal. Chem. 5, 800–8216 (2011)
  8.L. Calvo, M.A. Gilarranz, J.A. Casas, A.F. Mohedano, J.J. Rodriguez, Appl. Catal. B Environ. 67, 68–76 (2006)CrossRef
  9.X. Le, Z. Dong, X. Li, W. Zhang, M. Le, J. Ma, Catal. Commun. 59, 21–25 (2015)CrossRef
  10.X. Le, Z. Dong, X. Li, W. Zhang, M. Le, J. Ma, Appl. Catal. B Environ. 162, 372–380 (2015)CrossRef
  11.G.M. Scheuermann, L. Rumi, P. Steurer, W. Bannwarth, R. Mulhaupt, J. Am. Chem. Soc. 131, 8262–8270 (2009)CrossRef
  12.H.M. Roy, C.M. Wai, T. Yuan, J.K. Kim, W.D. Marshall, Appl. Catal. A Gen. 271, 137–143 (2004)CrossRef
  13.K.H. Lee, S.-W. Han, K.-Y. Kwon, J.B. Park, J. Colloid Interface Sci. 403, 127–133 (2013)CrossRef
  14.A.R. Siamaki, A.E.R.S. Khder, V. Abdelsayed, M.S. El-Shall, B.F. Gupton, J. Catal. 279, 1–11 (2011)CrossRef
  15.W.S. Hammers, R.E. Offeman, J. Am. Chem. Soc. 80, 1339 (1958)CrossRef
  16.W. Chang, J. Shin, G.-H. Chae, S.R. Jang, B.J. Ahn, J. Ind. Eng. Chem. 19, 739–743 (2013)CrossRef
  17.W. Chang, J. Shin, J. Oh, B. J. Ahn, in Proceedings of 16th KCS (Jeonju) 134–134 (2014)
  18.N.S. Babu, N. Lingaiah, R. Gopinath, P.S. Sankar Reddy, P.S. Sai Prasad, J. Phys. Chem. C 111, 6447–6453 (2007)CrossRef
  19.Z. Dong, C. Dong, Y. Liu, X. Le, Z. Jin, J. Ma, Chem. Eng. J. 270, 215–222 (2015)CrossRef
  
• 作者单位：Wonghil Chang (1)
  Hojun Kim (2)
  Ga Young Lee (2)
  Byoung Joon Ahn (2)
  
  1. Department of Nano and Advanced Materials Engineering, Jeonju University, Jeonju, 560-759, Korea
  2. Department of Chemistry, Education Institute of Fusion Science, Chonbuk National University, Jeonju, 561-756, Korea
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Catalysis
  Physical Chemistry
  Inorganic Chemistry
  
• 出版者：Springer Netherlands
• ISSN：1568-5675

文摘

Chlorophenols are widely used as industrial chemicals such as herbicides, insecticides, wood preservatives, and disinfectants. However, chlorophenols are very toxic materials and they have become the cause of current environmental issues. Hydrodechlorination (HDC) reaction is a more environmentally friendly removal method of chlorophenols than other methods. In this paper, Pd–modified graphene was prepared and applied to HDC reaction. Pd supported on graphene (refer to Pd/G) was prepared using the recently reported microwave irradiation method. The Pd(II)/GO was made by impregnation methods of palladium precursors in solution phase and was subsequently reduced to Pd/G by microwave irradiation. The morphological and chemical structure of the Pd/G was characterized by XRD, SEM, ICP-MS, EDS, and TEM. It was found that the graphene-based Pd catalyst showed the highest catalytic performance among Pd/Y, Pd/MCM-41, and Pd/G catalysts. This is attributed to the smaller particle size and higher dispersions of Pd nanoparticles on the graphene surface. The catalytic HDC of chlorophenols was investigated. For HDC reaction, 100 ppm solution of chlorophenols such as 4-chlorophenol, six isomers of dichlorophenol, and 2,3,5-trichlorophenol in isopropanol was treated with catalyst and base, such as Na₂CO₃ and K₂CO₃, under a hydrogen gas at ambient pressure. The progress of the chlorophenol decomposition was analyzed with GC. All chlorophenols were completely decomposed within 2 h in the 3 % Pd/G catalyst. The reaction pathway of chlorophenols was elucidated from the conversion of chlorophenols and selectivities of products. The reuse of the catalyst was also studied. The performance of the recycled catalyst in HDC reaction up to six successive runs was observed. Keywords Hydrodechlorination Chlorophenol Dichlorophenols Trichlorophenol Pd–graphene