2008
DOI: 10.1016/j.chemosphere.2008.07.039
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Modified SBA-15 mesoporous silica for heavy metal ions remediation

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Cited by 259 publications
(147 citation statements)
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“…These peaks suggested successful reaction between the hydroxyl groups on the silica framework and the ethoxy groups of the amino-propyl-tri-ethoxy-silane substrate. The peaks observed between 2800 and 3000 cm À1 were attributed to both symmetric and asymmetric stretching vibrations of the eCH 3 and eCH 2 groups of the APS (Mureseanu et al, 2008). On functionalization with the tripolyphosphate, the intensity of the peak around 1070 cm À1 increased and a new peak appeared at 953 cm…”
Section: Synthesis and Characterization Of The Sba-15 Sorbentsmentioning
confidence: 91%
“…These peaks suggested successful reaction between the hydroxyl groups on the silica framework and the ethoxy groups of the amino-propyl-tri-ethoxy-silane substrate. The peaks observed between 2800 and 3000 cm À1 were attributed to both symmetric and asymmetric stretching vibrations of the eCH 3 and eCH 2 groups of the APS (Mureseanu et al, 2008). On functionalization with the tripolyphosphate, the intensity of the peak around 1070 cm À1 increased and a new peak appeared at 953 cm…”
Section: Synthesis and Characterization Of The Sba-15 Sorbentsmentioning
confidence: 91%
“…At the same time, some of them such as silver, copper and lead are precious and can be recycled and reused in varied applications (Anbia and Ghassemian 2011). Toxic heavy metals such as Pb(II) and Cu(II) in liquid effluents are considered as persistent, non-biodegradable, bioaccumulative and therefore seriously threaten natural ecosystems and the human health (Amini et al 2009;Gercel and Gerc 2007;Júnior et al 2009;Mureseanu et al 2008). Industries, such as mining and electroplating, discharge aqueous effluents containing high levels of heavy metals like uranium, mercury, cadmium, lead and copper (Reddad et al 2002;Gavrilescu 2004).…”
Section: Introductionmentioning
confidence: 99%
“…The characteristic of the used adsorbent are presented in Table1. Adsorption studies were performed by batch technique at different temperatures (30,35,40, 45 °C), various adsorbent mass (0.0025, 0.005, 0.0075, 0.01, 0.02, 0.03, 0.04, and 0.05 g, respectively), and a pH range between 2 and 7 (2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, and 7). The pH values were adjusted with 0.1 M NaOH and, respectively, HNO 3 solutions.…”
Section: Methodsmentioning
confidence: 99%