Study on the Effect of A Magnetic Field on Pb(II) Removal Using Modified Chitosan

• 作者: Jinqing Yang Lihong Duan Siyuan Guo
• 来源期刊: 化学工程与科学期刊(英文)
• 学科: 化学
• 关键词: MAGNETIC FIELD CHITOSAN PB(II) REMOVAL
• 年，卷（期）: 2012,（1）
• 页码范围: 101-107
• 页数: 7页
• 分类号: O6

摘要

This work examined the removal of Pb(II) using a chitosan derivative (SB, synthesized from benzaldehyde) assisted by a magnetic field. The adsorption capacity for Pb(II) was investigated. It was found that 1) the pH and concentration of the ion solution, as well as exposure time and strength of magnetic field, affected the degree of adsorption;and 2) studies of the adsorption isotherms and kinetics of ions onto SB revealed that SB showed enhanced adsorption capacity towards Pb(II) ions in a magnetic field compared with magnetically untreated samples. The Langmuir and Freundlich isotherm were applied to describe the experimental adsorption, and the maximum adsorption capacity of SB for Pb(II) was 2.5040 mg/g, when assisted by a magnetic field of 480 kA/m.