铊在多壁碳纳米管上的吸附(英文)

Saeed ur Rehman¹，Najeeb Ullah^1,2，Ali Reza Kamali²，Khurshid Ali¹，Cemile Yerlikaya^2,3，Hanif ur Rehman¹

1. Institute of Chemical Sciences,University of Peshawar,Peshawar,Pakistan2. Department of Materials Science and Metallurgy,University of Cambridge,Pembroke Street,Cambridge CB2 3QZ,UK3. Chemical Engineering Department,Chemical and Metallurgical Faculty,Istanbul Technical University,Istanbul 34469,Turkey

摘 要：多壁碳纳米管采用H2SO4,KMnO4,HNO3氧化处理后用于铊吸附研究。碳纳米管经处理后表面官能团增加,采用Bohmn滴定法确定了样品的表面官能团的量。当用于吸附铊时,氧化处理显著提高了其吸附能力。采用Langmuir方程进行拟合处理后获得原始碳纳米管、H2SO4,KMnO4,HNO3氧化处理后样品的吸附量分别为3.0,11.7,21.6 and 31.55mg/g。HNO3处理后具有对铊最佳的吸附性能。

关键词：铊;多壁碳纳米管;吸附;氧化;