Adsorption of 1,2-Dichlorobenzene on a Carbon Nanomaterial Prepared by Decomposition of 1,2-Dichloroethane on Nickel Alloys

Yu I. Bauman, O. V. Netskina, S. A. Mukha, I. V. Mishakov, Yu V. Shubin, V. O. Stoyanovskii, A. Yu Nalivaiko, A. A. Vedyagin, A. A. Gromov

Research output: Contribution to journalArticlepeer-review

Abstract

Concept of complex processing of chlorinated hydrocarbons, involving catalytic decomposition of 1,2-dichloroethane on Ni–M alloys to obtain a carbon nanomaterial (CNM) showing high performance in adsorption treatment of water to remove 1,2-dichlorobenzene, was developed. A series of finely dispersed Ni–Pd (5 wt.%) and Ni–Mo (5 wt.%) alloys were synthesized and evaluated. The samples were studied as catalysts in decomposition of C2H4Cl2 vapor at 600°С to obtain a carbon nanomaterial. The addition of 5 wt.% second metal led to an increased carbon nanomaterial yield, from 20.1 to 25.4 (Ni–Pd) and 31.8 g/CNM(Ni–Mo). Analysis by electron microscopy and Raman spectroscopy showed that the carbon product consists of nanofibers of segmented structure, constituted by a poorly ordered graphite phase. The specific surface area of the carbon nanomaterial was 230–280 sq m/g>. The CNM/Ni, CNM/Ni–Pd, and CNM/Ni–Mo samples obtained were tested as adsorbents for water treatment to remove dissolved 1,2-dichlorobenzene (с0 = 73–880 ΜM) in the batch mode. The 1,2-dichlorobenzene adsorption isotherms were constructed. The degree of filling of the carbon nanomaterial surface with the adsorbate at equilibrium is 43%–47%, exceeding by a factor of more than 2 the utilization efficiency of AG-2000 activated carbon (SBET = 1230 m2 g–1).

Original languageEnglish
Pages (from-to)1873-1882
Number of pages10
JournalRussian Journal of Applied Chemistry
Volume93
Issue number12
DOIs
Publication statusPublished - Dec 2020

Keywords

  • 1,2-dichlorobenzene
  • 1,2-dichloroethane
  • adsorption
  • adsorption capacity
  • carbon erosion
  • carbon nanofibers
  • catalytic decomposition
  • chlorinated organic compounds
  • nickel alloys
  • utilization of chlorinated hydrocarbons
  • water treatment

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