Comparative Study for the Removal of Oxadiazon from Aqueous Solutions by Adsorption on Chitosan and Activated Carbon

被引：13
|
作者：
Arvand, Majid [1 ]
Latify, Laleh [1 ]
Tajmehri, Hossein [2 ]
Yagubov, Ali I. [2 ]
Nuriyev, Ali N. [2 ]
Pourhabib, Akram [3 ]
Mousavi, Seyyed J. [4 ]
Abolhassani, Mohammad R. [4 ]
机构：
[1] Univ Guilan, Fac Sci, Dept Chem, Rasht, Iran
[2] Kimya Problemleri Inst, Azerbayjan Milli Ea Mn, Azerbaijan
[3] Teaching & Training Org, Dept Chem, Rasht, Iran
[4] Islamic Azad Univ, Tehran, Iran
来源：
ANALYTICAL LETTERS | 2009年 / 42卷 / 06期
关键词：
Activated carbon; biosorbents; chitosan; herbicides; oxadiazon; CHROMATOGRAPHY-MASS-SPECTROMETRY; SOLID-PHASE EXTRACTION; GAS-CHROMATOGRAPHY; RESIDUES; CHROMIUM; HERBICIDES; JUICE;
D O I：
10.1080/00032710902722061
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
In the present investigation, chitosan and activated carbon are used as adsorbents for the removal of oxadiazon from aqueous solutions. The analyzing system was a gas chromatograph equipped with mass selective detector. The equilibrium studies are systematically carried out in a batch process, covering various process parameters that include agitation time, adsorbent dosage, and pH of the aqueous solution. Also, the relationship between extraction of oxadiazon and volume of aqueous/organic phase as well as the effect of inorganic salt were investigated. Adsorption behavior was found to follow Freundlich and Langmuir isotherms. The adsorption mechanism is described by a pseudo-second-order kinetics.
引用
收藏
页码：856 / 869
页数：14
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