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|標題:||Adsorption of benzene, toluene, ethylbenzene and p-xylene by NaOCl-oxidized carbon nanotubes||作者:||Su, F.S.
|關鍵字:||Carbon nanotubes;Adsorption;Surface modification;BTEX;Wastewater;treatment;aqueous-solutions;organic-chemicals;surface-chemistry;activated;carbon;water;oxidation;acid;1,2-dichlorobenzene;trihalomethanes;nanomaterials||Project:||Colloids and Surfaces a-Physicochemical and Engineering Aspects||期刊/報告no：:||Colloids and Surfaces a-Physicochemical and Engineering Aspects, Volume 353, Issue 1, Page(s) 83-91.||摘要:||
Multiwalled carbon nanotubes (CNTs) were oxidized by sodium hypochlorite (NaOCl) Solution and were employed as adsorbents to study their characterizations and adsorption performance of benzene, toluene, ethylbenzene and p-xylene (abbreviated as BTEX) in an aqueous Solution. The physicochemical properties of CNTs such as purity, structure and surface nature were greatly improved after oxidation, which significantly enhanced BTEX adsorption capacity. The adsorption capacity of CNT(NaOCl) increased with contact time and initial adsorbate concentration, but changed insignificantly with solution ionic strength and pH. A comparative Study on the BTEX adsorption revealed that the CNT(NaOCl) had better BTEX adsorption as compared to CNTs and granular activated carbon. This Suggests that the CNT(NaOCl) are efficient BTEX adsorbents and that they possess good potential for BTEX removal in wastewater treatment. (C) 2009 Elsevier B.V. All rights reserved.
|Appears in Collections:||環境工程學系所|
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