4.7 Article

Adsorptive removal of basic dye by chemically activated Parthenium biomass: equilibrium and kinetic modeling

期刊

DESALINATION
卷 219, 期 1-3, 页码 250-261

出版社

ELSEVIER
DOI: 10.1016/j.desal.2007.05.018

关键词

rhodamine-B; sulphuric acid; parthenium; adsorbent; adsorption equilibrium; pH; FT-IR; Langmuir; adsorbent dose; SEM

向作者/读者索取更多资源

This paper reports the removal of a basic dye (rhodamine-B) by the activated carbon prepared from Parthenium biomass by sulphuric acid treatment method (SWC). The effectiveness of the prepared adsorbent has been studied as a function of agitation time, adsorbent dosage, initial dye concentration and pH. The removal of rhodamine-B by SWC followed second order kinetic model. The second order model best describes adsorption kinetic data. Adsorption data were modeled using both Langmuir and Freundlich classical adsorption isotherms. The adsorption capacity Q(0) was 18.52 mg/g at initial pH 7 for the particle size 0.3-1 mm. The equilibrium time is about 60 min for the studied initial dye concentrations. Maximum dye removal (99.2%) was obtained at pH 7 using an adsorbent dose of 16.0 g/L for 50 mg/L dye concentration in the aqueous solution. FT-IR spectra of the adsorbents were recorded to explore the number and position of functional groups available for the binding of dye onto studied adsorbents. The presence of O-H, C=O and C-O groups was identified in the adsorbent. SEMs of the native and exhausted (SWC) were recorded to explore the morphology of the adsorbent.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据