？ EL-ASHGAR N M. Extraction and preconcentration capacity of bifunctionalized diamine-thiol polysiloxane immobilized ligand system towards some divalent cations [J]. J Iran Chem Soc, 2009, 6: 823–830.
[8]
？ AFSANEH Shahbazi, HABIBOLLAH Younesi, ALIREZA Badiei. Functionalized SBA-15 mesoporous silica by melamine-based dendrimer amines for adsorptive characteristics of Pb(II), Cu(II) and Cd(II) heavy metal ions in batch and fixed bed column [J]. Chem Eng J, 2010, 53: 1–14.
[9]
？ LIU Xianbin, SUN Hui, CHEN Yuan, et al. Preparation of large particle MCM-41 and investigation on its fluidization behavior and application in single-walled carbon nanotube production in a fluidized-bed reactor [J]. Chem Eng J, 2008, 142: 311–336.
[10]
？ TANEV P T, VLAEV L T. An attempt at a more precise evaluation of the approach to mesopore size distribution calculations depending on the degree of pore blocking [J]. J Colloid Interface Sci, 1993, 160: 603–619.
[11]
？ TANEV P T, PINNAVAIA T J. Neutral templating route to mesoporous molecular sieves [J]. Science, 1995, 267: 865–867.
[12]
？ YANTASEE Wassana, CYNTHIA L, WARNER Thanapon Sangvanich, et al. Removal of heavy metals from aqueous systems with thiol functionalized superparamagnetic nanoparticles [J]. Environ Sci Technol, 2007, 41: 5114–5119.
MA Hongmei, ZHU Zhiliang, ZHANG Ronghua, et al. Ion Exchange (in Chinese), 2006, 22: 519–526.
[24]
？ LEE Byunghwan, KIM Younghun, LEE Hyunjoo, et al. Synthesis of functionalized porous silica via templating method as heavy metal ion adsorbents: the introduction of surface hydrophilicity onto the surface of adsorbents [J]. Micro and Meso Mater, 2001, 50: 77–90.
