Adsorption of phenoxyacetic acids on powdered activated carbons

被引：1

作者：

Kusmierek, Krzysztof ^{[1
]}

Swiatkowski, Andrzej ^{[1
]}

Bialek, Arkadiusz ^{[2
]}

机构：

[1] Wojskowa Akad Tech, Warsaw, Poland

[2] Inst Przemyslu Organicznego, Siec Badawcza Lukasiewicz, Ul Annopol 6, PL-03236 Warsaw, Poland

来源：

PRZEMYSL CHEMICZNY | 2019年 / 98卷 / 10期

关键词：

AQUEOUS-SOLUTIONS; CHLOROPHENOLS; HERBICIDES; REMOVAL;

D O I：

10.15199/62.2019.10.25

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

PhOCH2COOH and its derivatives, 2,4-dichlorophenoxyacetic acid and 4-chloro-2-methylphenoxyacetic acid were adsorbed from their aq. solns. (0.2-1.0 mmol/L) on 2 com. powdered activated C at 25 degrees C to study the adsorption kinetics and equils. The kinetics was fitted well to the pseudo -second order model. The adsorption at equil. was well described by the Langmuir-Freundlich equation. The effects of soln. pH and ionic strength were studied. The adsorption decreased as the initial soln. pH increased and increased as the soln. ionic strength increased.

引用

页码：1653 / 1658

页数：6