TiO2-pillared clays with well-ordered porous structure and excellent photocatalytic activity

TiO2-pillared clays with well-ordered porous structures are successfully prepared via incorporating TiO2 nanosol particles into the clays, where empty octahedral sites are partially modified with divalent metal ions such as Mg2+ and Fe2+. The prepared TiO2-pillared mica exhibits excellent photocatalytic activity, which can be controlled by tuning the optical transparency of clay support rather than the specific surface area of the hybrid catalysts.

[1]  S. Hyun,et al.  Mesoporous Iron Oxide-Layered Titanate Nanohybrids: Soft-Chemical Synthesis, Characterization, and Photocatalyst Application , 2008 .

[2]  Seung‐Min Paek,et al.  Exfoliation and Reassembling Route to Mesoporous Titania Nanohybrids , 2006 .

[3]  Shoji Yamanaka,et al.  Preparation and properties of titania pillared clay , 1987 .

[4]  P. Dutta,et al.  Handbook of Layered Materials , 2004 .

[5]  J. Rehr,et al.  TI K-EDGE XANES STUDIES OF TI COORDINATION AND DISORDER IN OXIDE COMPOUNDS: COMPARISON BETWEEN THEORY AND EXPERIMENT , 1997 .

[6]  H. Yoshida,et al.  Highly hydrophobic TiO2 pillared clay for photocatalytic degradation of organic compounds in water , 2004 .

[7]  A. Mohamed,et al.  Facet-dependent photocatalytic properties of TiO(2) -based composites for energy conversion and environmental remediation. , 2014, ChemSusChem.

[8]  Jae-Hun Yang,et al.  Intracrystalline structure and physicochemical properties of mixed SiO2-TiO2 sol-pillared aluminosilicate. , 2006, The journal of physical chemistry. B.

[9]  Qian Zhu,et al.  Synthesis and characterization of TiO2 pillared montmorillonites: application for methylene blue degradation. , 2013, Journal of colloid and interface science.

[10]  J. Choy,et al.  Acidic and Hydrophobic Microporous Clays Pillared with Mixed Metal Oxide Nano-Sols , 1999 .

[11]  Song Liu,et al.  Microporous SiO2-TiO2 nanosols pillared montmorillonite for photocatalytic decomposition of methyl orange , 2006 .

[12]  S. Nishimura,et al.  Interstratification in Expandable Mica Produced by Cation-Exchange Treatment , 1998 .

[13]  Tae Woo Kim,et al.  Formation efficiency of one-dimensional nanostructured titanium oxide affected by the structure and composition of titanate precursor: A mechanism study , 2008 .

[14]  J. Choy,et al.  Multilayered SiO2/TiO2 Nanosol Particles in Two-Dimensional Aluminosilicate Catalyst−Support , 1998 .

[15]  S. Yamanaka,et al.  Optical and electrochemical properties of titania pillared clays , 1995 .

[16]  Faïza Bergaya,et al.  Handbook of clay science , 2006 .

[17]  S. Martin,et al.  Environmental Applications of Semiconductor Photocatalysis , 1995 .

[18]  Dong Hoon Lee,et al.  Pure Na-4-mica: Synthesis and Characterization , 2002 .

[19]  Hyun Jong Kim,et al.  New CoO−SiO2-Sol Pillared Clays as Catalysts for NOx Conversion , 2002 .

[20]  S. Moreno,et al.  Synthesis of pillared clays with Al13-Fe and Al13-Fe-Ce polymers in solid state assisted by microwave and ultrasound: Characterization and catalytic activity , 2009 .

[21]  K. Kawazoe,et al.  METHOD FOR THE CALCULATION OF EFFECTIVE PORE SIZE DISTRIBUTION IN MOLECULAR SIEVE CARBON , 1983 .

[22]  V. Luca.  Comparison of Size-Dependent Structural and Electronic Properties of Anatase and Rutile Nanoparticles , 2009 .

[23]  J. M. Adams,et al.  Chapter 10.2 Clay Minerals as Catalysts , 2006 .

[24]  Y. B. Choy,et al.  Laponite-based nanohybrid for enhanced solubility and controlled release of itraconazole. , 2008, International journal of pharmaceutics.

[25]  Huijun Zhao,et al.  Preparation and characterization of hydrophobic TiO(2) pillared clay: the effect of acid hydrolysis catalyst and doped Pt amount on photocatalytic activity. , 2008, Journal of colloid and interface science.

[26]  M. Darder,et al.  Fibrous clays based bionanocomposites , 2013 .

[27]  T. Pinnavaia,et al.  Intercalated Clay Catalysts , 1983, Science.

[28]  H. Yoshida,et al.  Crystallization of hydrothermally treated TiO2 pillars in pillared montmorillonite for improvement of the photocatalytic activity , 1999 .

[29]  YangJae-Hun,et al.  SiO2–Fe2O3-pillared Clay Nanohybrid with an Enhanced Gas Removal Property , 2011 .

[30]  Norikazu Aikawa,et al.  Photoluminescence and photocatalytic activity of highly dispersed titanium oxide anchored onto porous vycor glass , 1985 .

[31]  Y. Ide,et al.  Effective and selective adsorption of Zn2+ from seawater on a layered silicate. , 2011, Angewandte Chemie.

[32]  J. Chovelon,et al.  Photocatalytic degradation of methylparaben by TiO2: Multivariable experimental design and mechanism , 2009 .