activated carbon (AC) was modified with cetyltrimethyl ammonium bromide (CTAB) to enhance the hydrophilicity and electro-adsorption properties of the activated carbon electrode.The properties of the materials before and after modification were characterized and analyzed by scanning electron microscope,specific surface area and aperture analyzer,contact angle measuring instrument,fourier transform infrared spectrometer,electrochemical workstation and so on.the results shown that the specific surface area of the modified CTAB-AC material was lower than that of AC,but its surface hydrophilicity was obviously improved,and the electro-adsorption performance of the CTAB-AC electrode was obviously improved.The specific capacitance was increased from 66.55F·g-1 to 96.57F·g-1,which was increased by 45.11%.The coulombic efficiency was increased from 56% to 83.33%,and the removal ion rate was increased from 35.48% to 51.85%.A reference for the study on the preparation of electroadsorption materials was provided.
Liu Haojie, Li Haihong, Yang Ke
. Preparation and characterization of electro-adsorption material for activated carbon[J]. New Chemical Materials, 2020
, 48(8)
: 194
-197
.
DOI: 10.19817/j.cnki.issn 1006-3536.2020.08.043
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