Abstract
Using 3-aminopropyltriethoxysilan(APTES)to modify the interior surface of SBA-15 channels,PAMAM of generation 1 and generation 2 were successfully grafted in the meso-channels of SBA-15.The PAMAM-SBA-15 hybrids are employed in the adsorption of heavy metal ions to determine their adsorptive capacity,with the APTES modified SBA-15 as a reference sample.The bonding between PAMAM hybrids and metal ions are proved to be much stronger than that of APTES modified SBA-15 by TG-MS tests.Hybrids are used in deposition solution containing several kinds of heavy metal ions, and the selective adsorption of Pb~(2+)and Zn~(2+)is found.After deposition,the concentrations of Pb~(2+) and Zn~(2+)are reduced to 0.003mg/L and 0.037mg/L,respectively,which are lower than the national standard of drinking water.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
