Electrosorption of thiocyanate anions on active carbon felt electrode in dilute solution

被引：42

作者：

Rong, C ^{[1
]}

Xien, H ^{[1
]}

机构：

[1] Tsing Hua Univ, Inst Nucl Energy & New Energy Technol, Beijing 100084, Peoples R China

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2005年 / 290卷 / 01期

关键词：

active carbon felt; electrosorption; thiocyanate; desorption; electrical double layer (EDL);

D O I：

10.1016/j.jcis.2005.04.022

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Adsorption and electrosorption of thiocyanate (SCN-) anions on active carbon felt electrodes were measured by UV spectroscopy and cyclic voltammetry to provide more knowledge of the application of electrosorption on high-area carbon material in industrial waste water purification. Positive polarization caused increased adsorption of SCN-. SCN- showed the highest electrosorption capacity at about pH 3. Reversible electrosorption of SCN- to different extents was observed by changing the direction of polarization currents, which is possibly accompanied by the accessible surface area of C-felt being increased by positive polarization and electrochemical oxidation of SCN-. The enhanced capacity for adsorption by positive polarization will improve reuse of active carbon felt. (c) 2005 Elsevier Inc. All rights reserved.

引用

页码：190 / 195

页数：6

共 19 条

[1] Investigation of removal of Cr(VI), Mo(VI), W(VI), V(IV), and V(V) oxy-ions from industrial waste-waters by adsorption and electrosorption at high-area carbon cloth [J].

Afkhami, A ;

Conway, BE .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2002, 251 (02) :248-255

[2]

AFKHAMI A, 2003, LETT ED CARBON, V41, P1309

[3] Adsorption and electrosorption at high-area carbon-felt electrodes for waste-water purification: Systems evaluation with inorganic, S-containing anions [J].

Ayranci, E ;

Conway, BE .

JOURNAL OF APPLIED ELECTROCHEMISTRY, 2001, 31 (03) :257-266

[4] Adsorption and electrosorption of ethyl xanthate and thiocyanate anions at high-area carbon-cloth electrodes studied by in situ UV spectroscopy: Development of procedures for wastewater purification [J].

Ayranci, E ;

Conway, BE .

ANALYTICAL CHEMISTRY, 2001, 73 (06) :1181-1189

[5] Removal of phenol, phenoxide and chlorophenols from waste-waters by adsorption and electrosorption at high-area carbon felt electrodes [J].

Ayranci, E ;

Conway, BE .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2001, 513 (02) :100-110

[6] Fundamentals of electrosorption on activated carbon for wastewater treatment of industrial effluents [J].

Ban, A ;

Schafer, A ;

Wendt, H .

JOURNAL OF APPLIED ELECTROCHEMISTRY, 1998, 28 (03) :227-236

[7] Electrochemical studies of single-wall carbon nanotubes in aqueous solutions [J].

Barisci, JN ;

Wallace, GG ;

Baughman, RH .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2000, 488 (02) :92-98

[8] DISSOCIATION CONSTANTS OF HYDROPSEUDOHALIC ACIDS [J].

BOUGHTON, JH ;

KELLER, RN .

JOURNAL OF INORGANIC & NUCLEAR CHEMISTRY, 1966, 28 (12) :2851-&

[9] Electrochemical characterization of carbon nanotubes as electrode in electrochemical double-layer capacitors [J].

Chen, JH ;

Li, WZ ;

Wang, DZ ;

Yang, SX ;

Wen, JG ;

Ren, ZF .

CARBON, 2002, 40 (08) :1193-1197

[10] Capacitive deionization of NaCl and NaNO3 solutions with carbon aerogel electrodes [J].

Farmer, JC ;

Fix, DV ;

Mack, GV ;

Pekala, RW ;

Poco, JF .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1996, 143 (01) :159-169

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