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Journal of Nanostructures، جلد ۱۱، شماره ۱، صفحات ۱۲۵-۱۳۵
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عنوان انگلیسی One-Pot Hydrothermal Synthesis of Functionalized Mesoporous Silica for Effective Removal of Pb(II) Ion
چکیده انگلیسی مقاله There is a huge scope for the removal of heavy metal ions from aqueous solutions. In this study, mesoporous silica materials, (MSMs), functionalized with (3-Mercaptopropyl) trimethoxysilane, (MPTS/MSMs), were prepared and used for adsorption of Pb(II) ions from aqueous solutions. The synthesis of MPTS/MSMs adsorbent was done using one-pot hydrothermal method by immobilizing 3-Mercaptopropyl trimethoxysilane onto mesoporous silica surface. The structure and properties of the adsorbent were explored using different techniques such as FT-IR, XRD, SEM, TEM, TGA, and N2 adsorption-desorption isotherms. The adsorption applicability of prepared nanostructure for removal of the Pb(II) ions from the aqueous solution was investigated and the results showed a good selectivity in the absorption of Pb(II) ions over other ions in aqueous solution. The effect of different parameters including the solution pH, Pb(II) concentration, sorbent amount, ion interfering effect, and the contact time onto the removal efficiency of the adsorbent was investigated systematically. The maximum adsorption efficiency (~ 97%) was found for the solutions with pH = 6, the best contact time was seen as 30 min for 50 mg L−1 of the analyte under the optimal conditions. The adsorbent was triumphantly used for the removal of Pb (II) ions from the three real water samples, including tap water, well water, and lake water with the removal efficiency of > 95%.
کلیدواژه‌های انگلیسی مقاله Adsorption, Mesoporous silica, Pb(II) ions, sorbent
نویسندگان مقاله Najmeh Atoub |
Kish Campus, University of Tehran, Tehran, Iran

Ahmad Amiri |
School of Chemistry, College of Science, University of Tehran, Tehran, Iran

Alireza Badiei |
School of Chemistry, College of Science, University of Tehran, Tehran, Iran

Jahan B Ghasemi |
School of Chemistry, College of Science, University of Tehran, Tehran, Iran

نشانی اینترنتی https://jns.kashanu.ac.ir/article_110808_8c0c36a97091508f471022b604e02fb7.pdf
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