Removal of Strontium (II) from Aqueous Solution by Adsorption Using Xerogel Synthesized by TEOS: Kinetics and Thermodynamics Study

Document Type : Research Article


1 Department of Chemistry, College of Science, Semnan University, Semnan, I.R. IRAN

2 Department of Chemical, Petroleum and Gas Engineering, Semnan University, Semnan, I.R. IRAN

3 Faculty of Science, National Institute for Genetic Engineering and Biotechnology, Tehran, I.R. IRAN


TEOS xerogel was investigated as adsorbent to removal strontium ion from aqueous solution in batch operations. Batch experiments were carried out as a function of pH, initial concentration, time, and temperature. Simple kinetic and thermodynamic models have been applied to the rate and isotherm sorption data and kinetic and thermodynamic parameters were determined. These studies were showed that the Langmuir isotherm model and pseudo-second-order kinetic model were fitted well with experimental data. The maximum capacity of the adsorbent for Sr(II) is 17 mg/g. The paper discusses the thermodynamic parameters of the adsorption (the Gibbs free energy, entropy, and enthalpy). Results demonstrate that the adsorption process was spontaneous and endothermic under natural conditions.


Main Subjects

[4] Okugaki T., Kitatsuji Y., Kasuno M., Development of High Performance Electrochemical Solvent Extraction Method, J. Electroanal. Chem., 629: 50–56 (2009).
[7] Bae S.D., Sagehashi M., Sakoda A., Prevention of Microparticle Blocking in Activated Carbon Membrane Filtration with Carbon Whisker, J. Membr. Sci., 252: 155-163 (2005).
[8] Sawaki Y., Ohno T., Tahata M., The Ediacaran Radiogenic Sr Isotope Excursion in the Doushantuo Formation in the Three Gorges Area, South China, Precambrian Res., 176:  46-64 (2010).
[9] Missana T., Atun G., Adsorption of Bivalent Ions (Ca(II), Sr(II) and Co(II)) onto FEBEX Bentonite, Phys. Chem. Earth, 32:  559-567 (2007).
[11] Balarama Krishna M.V., Raoa S.V., Arunachalam J., Murali M.S., Kumarc S., Manchand V.K., Removal of 137Cs and 90Sr from Actual Low Level Radioactive Waste Solutions Using Moss As a Phyto-Sorbent, Sep. Purif. Technol., 38: 149-161 (2004).
[12] Chen C., Hu J., Shao D., Li J., Wang X., Adsorption Behavior of Multiwall Carbon Nanotube/Iron Oxide Magnetic Composites for Ni(II) and Sr(II), J. Hazard. Mater., 164:  923–928 (2009).
[13] Chegrouche S., Mellah A., Barkat M., Removal of Strontium from Aqueous Solutions by Adsorption onto Activated Carbon: Kinetic and Thermodynamic Studies, Desalination 235: 306-318 (2009).
[15] Bascetin E., Atun G., Adsorption Behavior of Strontium on Binary Mineral Mixtures of Montmorillonite and Kaolinite, Appl. Radiat. Isot., 64: 957-964 (2006).
]16[ سمیعی بیرق، عبدالله؛ خدادادی، احمد؛ عبداللهی، محمود؛ مشکینی، محمد؛ بررسی فرآیند حذف سیانید از آب سد باطله کارخانه فراوری طلای آقدره- تکاب با استفاده از کانی تالک، نشریه شیمی و مهندسی شیمی ایران، (4 و 3)31: 21 تا 32 (1391).
[17] طهمورثی، مجید؛ صرافی، امیر؛ ایرج منصوری، عبدالرضا؛ لشکری، بتول؛ جذب یون های مس، روی و نیکل توسط بنتونیت کلسیمی، نشریه شیمی و مهندسی شیمی ایران، (1)32: 7 تا 16 (1392).
[18] علیزاده، رضا؛ عابدینی، سوده؛ نبی بیدهندی، غلامرضا؛ عمو عابدینی، قاسم؛ حذف فلز سرب از پساب صنایع باتری­سازی با استفاده از نانوذرات مغناظیسی آهن، نشریه شیمی و مهندسی شیمی ایران، (1)30: 71 تا 77 (1390).
[20] Pierre A.C., Sol-gel Immobilization of Catalytic Molecules and Applications, Adv. Sci. Technol., 45: 2127-2136 (2006).
[21] Mehrotra R.C., Present Status and Future Potential of Sol-Gel Process, in: Reisfeld R., Jorgensen C.K. (Eds.), “The Chemistry, Spectroscopy, and Applications of Sol-Gel Glasses”, Springer-Verlag, Berlin-Heidelberg, (1992) 1-36.
[22] Framery, E. Mutin, P.H. 29Si MAS-NMR Study of Silica Gels and Xerogels: Influence of the Catalyst; J. Sol-Gel Sci., 24: 191-195 (2002).
[23] Flávio A. Pavan, Alzira M.S. Lucho, Reinaldo S. Gonçalves, Tania M.H. Costa, and Edilson V. Benvenutti ; Anilinepropylsilica Xerogel Used as a Selective Cu (II) Adsorbent in Aqueous Solution, JCIS, 263: 688-691 (2003).
[24] Marcia C. Brasil, Edilson V. Benvenutti, Jose´ R. Grego´ rio, Annelise E. Gerbase; Iron Acetylacetonate Complex Anchored on Silica Xerogel Polymer; Reactive & Functional Polymers 63: 135-141 (2005).
[25]Haghbeen K., Legge R.L., Adsorption of Phenolic Compounds on Some Hybrid Xerogels, Chem. Eng. J. 150: 1-7 (2009).
[26] محتبی، اسدلله؛ فضلی، مصطفی؛ بررسی بار سطحی جاذب زروژل TEOS با استفاده از حذف رنگدانه های آلی محلول در آب، "سومین همایش علوم و فناوری مواد فعال سطحی و صنایع شوینده"، (1391).
[27] Ibrahem S., Ibrahem H., Preparation and Study Properties of Xerogel Silica Using Sol-Gel Method, International Journal of Application or Innovation in Engineering & Management (IJAIEM), 2(9): 111-116 (2013).
[28] Venkateswara Rao, A. Wagh, P. h. Haranath, D. Risbud, P. P. Kumbhare, S. D. Infuence of Temperature on the Physical Properties of TEOS Silica Xerogels, Ceramics International 25: 505-509 (1999).
[29] توحیدی، سید حسین؛ نوین روز، عبدالجواد؛ سنتز ترکیبات مس (II) اکسید، روی بستر سیلیکا با ابعاد نانومتری به روش شیمیایی سل – ژل و بررسی طیف سنجی آن، نشریه شیمی و مهندسی شیمی ایران، شماره 3، ص 105 (1386).
[31] Li Q., Liu H.N., Liu T.Y., Strontium and Calcium Ion Adsorption by Molecularly Imprinted Hybrid Gel, Chem. Eng. J., 157: 401-407 (2010).
[32] Reddy D.H.K., Lalhmunsiama D., Tiwari2, Choi H.J., Lee S.M., Attenuation of Radioactive Sr(II) from Water Environment Using Sericite Clay, International Conference on Environment, Chemistry and Biology, 49: 105-109 (2012).
[33] Marešova J., Pipiška M., Rozložnik M., Hornik M., Remenarova L., Augustin J., Cobalt and Strontium Sorption by Moss Biosorbent: Modeling of Single and Binary Metal Systems, Desalination, 266: 134–141(2011).
[34] Wu P., Daia Y., Longa H., Zhua N., Li P., Wua J., Danga Z., Characterization of Organo-Montmorillonites and Comparison for Sr(II) Removal:Equilibrium and Kinetic Studies, Chem. Eng. J., 191: 288-296 (2012).
[35] Tel, H. Altas¸ Y., Eral, M. enol Sert, S.B.C, Etinkaya, S, I˙nan, Preparation of ZrO2 and ZrO2–TiO2 Microspheres by the Sol–Gel Method and An Experimental Design Approach to their Strontium Adsorption Behaviours, Chem. Eng. J. 161: 151–160 (2010).
 [36] Elouear Z., Bouzid J., Boujelben N., Feki M., Jamoussi F., Montiel A., Heavy Metal Removal from Aqueos Solution by Actived Phosphate Rock, J. Hazard. Mater., 156: 412-420 (2008).
[37] Jain C.K., Singhal D.C., Sharma M.K., Adsorption of Zinc on Bed Sediment of River Hindon: Adsorption Model and Kinetics, J. Hazard. Mater., 114: 231-239 (2004).
[38] Seker A., Shahwan T., Eroglu A.E., Yilmaz S., Demirel Z., Conk Dalay M., Equilibrium, Thermodynamic and Kinetic Studies for the Biosorption of Aqueous Lead(II), Cadmium(II) and Nickel(II) Ions on Spirulina Platensis, J. Hzard. Mater., 154: 973-980(2008).
[40] Jain M., Garg V.K., Kardirvelu K., Choromium Removal from Aqueous System Using Helianthus Annuus (Sunflower) Stem Waste, J. Hzard. Mater., 162: 365-372 (2009).
[41] Kumar R., Abraham T.N., Jain S.K., Silver Nano Particles Impregnated Alumina for the Removal of Strontium(II) from Aqueous Solution, Adv. Mat. Lett., 3(6): 507-510 (2012).
[42] Srinivasa Rao, K. Roy Chaudhury, G, B. Mishra, K. Kinetics and Equilibrium Studies for the Removal of Cadmium Ions from Aqueous Solution Using Duolite ES 467 Resin, J. Miner. Process, 97: 68-73 (2010).
[43] Wu Z.J., Joo H., Lee K., Kinetics and Thermodynamics of the Organic Dye Adsorption on the Mesoporous Hybrid Xerogel, Chem. Eng. J., 112: 227–236 (2005).
[45] Wang X.S., Li Z.Z., Tao S.R., Removal of Chromium from Aqueous Solution Using Walnut Hull, JEM, 90: 721-729 (2009).