A study on the adsorption of benzotriazole on copper in hydrochloric acid using the inflection point of the isotherm

被引:132
作者
Cano, E
Polo, JL
La Iglesia, A
Bastidas, JM
机构
[1] CSIC, Ctr Nacl Invest Met, E-28040 Madrid, Spain
[2] Univ Castilla La Mancha, Escuela Ingn Tecn Ind, E-45071 Toledo, Spain
[3] Univ Complutense Madrid, Fac Ciencias Geol, CSIC, Inst Geol Econ, E-28040 Madrid, Spain
来源
ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY | 2004年 / 10卷 / 03期
关键词
copper; hydrochloric acid; benzotriazole; Frumkin and Damaskin-Parsons adsorption isotherms;
D O I
10.1023/B:ADSO.0000046358.35572.4c
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
This paper is a contribution to correlate benzotriazole (BTA) adsorption films on copper with BTA concentration in bulk solution with hydrochloric (HCl) acid. Three HCl concentrations were tested, 0.001, 0.005, and 0.01 M. Twelve BTA concentrations, from 1 x 10(-5) to 1 x 10(-1) M, were added to the HCl acid solution at four temperatures from 298 to 328 K. Commercial copper was used. Gravimetric measurements were performed after 3 h experimentation. The Frumkin isotherm gave the best fit to the experimental results. This result was based on the inflection point approach of the isotherm.
引用
收藏
页码:219 / 225
页数:7
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