Abstract
The elimination of Pb2+ and recovery of lead metal during the treatment of industrial sewage is an important research topic. Montmorillonite (Mnt) is a promising material in this regard. The purpose of the present study was to improve the Pb2+ adsorption ability of Na-containing Mnt (Na-Mnt) by pillaring titania (anatase) into its interlayer spaces using a sol-gel method. The samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The ratio of Ti to Mnt affected the crystal phase of titania-pillared Na-Mnt (Ti-Mnt), and changed the interlayer spacing of the (001) plane of Ti-Mnt and the growth of anatase. The Pb2+-adsorption capabilities of Ti-Mnt were tested using an aqueous solution of lead nitrate as a wastewater model. The Ti-Mnt prepared adsorbed >99.99% of the Pb2+; leached and activated Ti-Mnt adsorbed >95.7% of the Pb2+, indicating that Ti-Mnt could be recycled effectively. Furthermore, the Pb2+-adsorption capability of Ti- Mnt was related to the interlayer spacing of Mnt, the distribution of anatase particles pillared in Mnt, and the specific surface area, especially with respect to the relationship between the anatase particles and the interlayer spacing of the (001) plane.
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References
Barama, S., Davidson, A., Barama, A., Boukhlouf, H., Casale, S., Calers, C., Brouri, D., Domingos, C., and Djadoun, A. (2017) Dephosphatation under UV light of water by Ti-PILC with activation by secondary species (La, Se, and Rb). Comptes Rendus Chimie, 20, 7–19.
Chen, D.M., Du, G.X., Zhu, Q., and Zhou, F.S. (2013) Synthesis and characterization of TiO2 pillared montmorillonites: application for methylene blue degradation. Journal of Colloid and Interface Science, 409, 151–157.
Djellabi, R., Ghorab, M.F., Cerrato, G., Morandi, S., Gatto, S., Oldani, V., Michele, A.D., and Bianchi, C.L. (2014) Photoactive TiO2 -Mnt composite for degradation of organic dyes in water. Journal of Photochemistry and Photobiology A: Chemistry, 295, 57–63.
Fetter, G., Heredia, G., Velázquez, L.A., Maubert, A.M., and Bosch, P. (1997) Synthesis of aluminum-pillared montmorillonites using highly concentrated clay suspensions. Applied Catalysis A: General, 162, 41–45.
Hur, S.G., Kim, T.W., Hwang, S.J., Hwang, S.H., Yang, J.H., and Choy, J.H. (2006) Heterostructured nanohybrid of zinc oxide-Mnt clay. Journal of Physical Chemistry B, 110, 1599–1604.
Irannajad, M. and Haghighi, H.K. (2017) Removal of Co2+, Ni2+, and Pb2+ by manganese oxide-coated zeolite: equilibrium, thermodynamics, and kinetics studies. Clays and Clay Minerals, 65, 52–62.
Korosi, L., Nemeth, J., and Dekany, I. (2004) Structural and photooxidation properties of SnO2/layer silicate nanocomposites. Applied Clay Science, 27, 29–40.
Liang, K. (2013) A study on absorption of titania pillared Mnt for heavy metal ions. Acta Mineralogica Sinca, 33, 408–414.
Miao, S.D., Liu, Z.M., Han, B.X., Yang, H.W., Miao, Z.J., and Sun, Z.Y. (2006) Synthesis and characterization of ZnS-Mnt nanocomposites and their application for degrading eosin B. Journal of Colloid and Interface Science, 301, 116–122.
Mogyorosi, K., Dekany, I., and Fendler, J.H. (2003) Preparation and characterization of clay mineral intercalated titanium dioxide nanoparticles. Langmuir, 19, 2938–2946.
Mulewa, W., Tahir, M., and Amin, N.A.S. (2017) MNTsupported Ni/TiO2 nanocomposite for low temperature ethanol steam reforming toward hydrogen production. Chemical Engineering Journal, 326, 956–969.
Ooka, C., Yoshida, H., Horio, M., and Hattori, T. (2003) Adsorptive and photocatalytic performance of TiO2 pillared Mnt in degradation of endocrine disruptors having different hydrophobicity. Applied Catalysis B: Environmental, 41, 313–321.
Sun, H.J., Peng, T.J., Liu, B., and Xian, H.Y. (2015) Effects of montmorillonite on phase transition and size of TiO2 nanoparticles in TiO2/Mnt nanocomposites. Applied Clay Science, 114, 440–446.
Tabet, D., Saidi, M., Houari, M., Pichat, P., and Khalaf, H. (2006) Fe-pillared clay as a Fenton-type heterogeneous catalyst for cinnamic acid degradation. Journal of Environmental Management, 80, 342–346.
Tahir, M. and Amin, N.A.S. (2013) Photocatalytic reduction of carbon dioxide with water vapors over montmorillonitemodified TiO2 nanocomposites. Applied Catalysis B: Environmental, 142-143, 512–522.
Tahir, M., Tahir, B., and Amin, N.S. (2015) Photocatalytic CO2 reduction by CH4 over montmorillonite-modified TiO2 nanocomposites in a continuous monolith photoreactor. Materials Research Bulletin, 63, 13–23.
Underwood, T., Erastova, V., and Greenwell, H.C. (2016) Ion adsorption at clay-mineral surfaces: the Hofmeister series for hydrated smectite minerals. Clays and Clay Minerals, 64, 472–487.
Yaron-Marcovich, D., Chen, Y., Nir, S., and Prost, R. (2005) High resolution electron microscopy structural studies of organo-clay nanocomposites. Environmental Science & Technology, 39, 1231–1238.
Zhang, P., Mo, Z.L., Han, L.J., Zhu, X.B., Wang, B., and Zhang, C. (2014) Preparation and photocatalytic performance of magnetic TiO2/Mnt/Fe3O4 nanocomposites. India Engineering Chemical Research, 53, 8057–8061.
Zhou, C.H. (2011) An overview on strategies towards claybased designer catalysts for green and sustainable catalysis. Applied Clay Science, 53, 87–96.
Zhou, C.H. and Keeling, J. (2013) Fundamental and applied research on clay minerals: From climate and environment to nanotechnology. Applied Clay Science, 74, 3–9.
Zhou, C.H., Zhao, L.Z., Wang, A.Q., Chen, T.H., and He, H.P. (2016) Current fundamental and applied research into clay minerals in China. Applied Clay Science, 119, 3–7.
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Liu, J., Chen, R., Li, Y. et al. Microstructure-Related Pb2+ Adsorption Capability Of Ti-Pillared Montmorillonite in Aqueous Solution. Clays Clay Miner. 66, 466–473 (2018). https://doi.org/10.1346/CCMN.2018.064112
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DOI: https://doi.org/10.1346/CCMN.2018.064112