TY - JOUR

T1 - Adsorption of 1,2-Dichlorobenzene on a Carbon Nanomaterial Prepared by Decomposition of 1,2-Dichloroethane on Nickel Alloys

AU - Bauman, Yu I.

AU - Netskina, O. V.

AU - Mukha, S. A.

AU - Mishakov, I. V.

AU - Shubin, Yu V.

AU - Stoyanovskii, V. O.

AU - Nalivaiko, A. Yu

AU - Vedyagin, A. A.

AU - Gromov, A. A.

N1 - Copyright: Copyright 2021 Elsevier B.V., All rights reserved.

PY - 2020/12

Y1 - 2020/12

N2 - 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).

AB - 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).

KW - 1,2-dichlorobenzene

KW - 1,2-dichloroethane

KW - adsorption

KW - adsorption capacity

KW - carbon erosion

KW - carbon nanofibers

KW - catalytic decomposition

KW - chlorinated organic compounds

KW - nickel alloys

KW - utilization of chlorinated hydrocarbons

KW - water treatment

UR - http://www.scopus.com/inward/record.url?scp=85101759135&partnerID=8YFLogxK

U2 - 10.1134/S1070427220120095

DO - 10.1134/S1070427220120095

M3 - Article

AN - SCOPUS:85101759135

VL - 93

SP - 1873

EP - 1882

JO - Russian Journal of Applied Chemistry

JF - Russian Journal of Applied Chemistry

SN - 1070-4272

IS - 12

ER -