Fast and efficient removal of orthophenanthroline and 2, 2 '-bipyridine from aqueous solutions by adsorption on modified nanoporous carbon

作者：Anbia M^*; Alvand M

来源：Scientia Iranica, 2012, 19(6): 1573-1579.

DOI：10.1016/j.scient.2012.07.004

• Adsorption
• Mesoporous
• Carbon
• Orthophenanthroline
• 2, 2 '-bipyridine
• Cu2+-OMC

Ploycyclic Aromatic Nitrogen Heterocycles (PANHs) are a widespread class of water pollutants that are known to cause serious human health problems; and the demand for effective adsorbents for the removal of toxic compounds is increasing. In this work Ordered Mesoporous Carbon (OMC) was prepared by using SBA-3 silica mesoporous molecular sieves as hard template. Then, Cu(II) modified mesoporous carbon molecular sieves, Cu2+-OMC, was prepared through wet impregnation of OMC by CuSO4 center dot 5H(2)O. Orthophenanthroline (OP) and 2, 2'-bipyridine (BP) were used as probe molecules to investigate their adsorption behavior on Cu2+-OMC. The synthesized mesoporous sample is used as a sorbent for fast and highly efficient removal of OP and BP from contaminated waters. The isotherms of OP and BP on Cu2+-OMC are well simulated by a Langmuir adsorption model. Theoretical studies show that the adsorption kinetics of OP and BP on Cu2+-OMC can be well depicted by using a pseudo-second-order kinetic model.

• 出版日期2012-12