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Kinetic adsorption of application of carbon nanotubes for Pb(Ⅱ) removal from aqueous solution 被引量:16
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作者 Nassereldeen a Kabbashi muataz a atieh +3 位作者 abdullah al-Mamun Mohamed E S Mirghami MD Z alam Noorahayu Yahya 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2009年第4期539-544,共6页
The capability of carbon nanotubes (CNTs) to adsorb lead (Pb) in aqueous solution was investigated. Batch mode adsorption experiment was conducted to determine the effects of pH, agitation speed, CNTs dosage and c... The capability of carbon nanotubes (CNTs) to adsorb lead (Pb) in aqueous solution was investigated. Batch mode adsorption experiment was conducted to determine the effects of pH, agitation speed, CNTs dosage and contact time. The removal of Pb(II) reached maximum value 85% or 83% at pH 5 or 40 mg/L of CNTs, respectively. Higher correlation coefficients from Langmuir isotherm model indicates the strong adsorptions of Pb(II) on the surface of CNTs (adsorption capacity Xm = 102.04 mg/g). The results indicates that the highest percentage removal of Pb (96.03%) can be achieved at pH 5, 40 mg/L of CNTs, contact time 80 min, and agitation speed 50 r/min. 展开更多
关键词 lead removal carbon nanotubes kinetic modeling ADSORPTION
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