Shape evolution and applications in water purification: the case of CVD-grown Zn2SiO4 straw-bundles

3-D straw-bundle-like Zn2SiO4 architectures assembled from numerous radial nanowires were synthesized by a simple thermal evaporation method using ZnCl2 powder as reactant. The growth process was studied in detail and a “ nanorods -to-straw-bundles-to-spheres” mechanism was proposed for the nanostructures synthesized from the vapor process. The application of the Zn2SiO4 straw bundles for the removal of toxic metal ions in water , FeIII and CdII in this case, was investigated and the results indicate that the amount of FeIII and CdII adsorbed onto the surface of the Zn2SiO4 straw bundles increased with the increase of pH values, and the Zn2SiO4 nanostructures showed better removal capacity for FeIII ions than CdII ions.

[1]  H. Hng,et al.  Epitaxial Growth of Branched α‐Fe2O3/SnO2 Nano‐Heterostructures with Improved Lithium‐Ion Battery Performance , 2011 .

[2]  Shuhong Yu,et al.  Synthesis of an attapulgite clay@carbon nanocomposite adsorbent by a hydrothermal carbonization process and their application in the removal of toxic metal ions from water. , 2011, Langmuir : the ACS journal of surfaces and colloids.

[3]  G. Shen,et al.  Nanowires assembled SnO2 nanopolyhedrons with enhanced gas sensing properties. , 2011, ACS applied materials & interfaces.

[4]  H. Gong,et al.  Co3O4 Nanowire@MnO2 Ultrathin Nanosheet Core/Shell Arrays: A New Class of High‐Performance Pseudocapacitive Materials , 2011, Advanced materials.

[5]  Xun Wang,et al.  Fine tuning of the dimensionality of zinc silicate nanostructures and their application as highly efficient absorbents for toxic metal ions , 2010 .

[6]  A. Govindaraj,et al.  Unipolar assembly of zinc oxide rods manifesting polarity-driven collective luminescence , 2010, Proceedings of the National Academy of Sciences.

[7]  Shuhong Yu,et al.  Synthesis of Polyacrylic Acid Stabilized Amorphous Calcium Carbonate Nanoparticles and Their Application for Removal of Toxic Heavy Metal Ions in Water , 2010 .

[8]  J. Zou,et al.  ZnS Branched Architectures as Optoelectronic Devices and Field Emitters , 2010, Advanced materials.

[9]  U. Gösele,et al.  Diffusion-facilitated fabrication of gold-decorated Zn2SiO4 nanotubes by a one-step solid-state reaction. , 2010, Angewandte Chemie.

[10]  M. Syväjärvi,et al.  Aligned AlN nanowires by self-organized vapor–solid growth , 2009, Nanotechnology.

[11]  Xun Wang,et al.  Magnesium Silicate Hollow Nanostructures as Highly Efficient Absorbents for Toxic Metal Ions , 2009 .

[12]  A. Pan,et al.  Ordered CdS micro/nanostructures on CdSe nanostructures , 2009, Nanotechnology.

[13]  Di Chen,et al.  Hierarchical WO3 Hollow Shells: Dendrite, Sphere, Dumbbell, and Their Photocatalytic Properties , 2008 .

[14]  L. Zhen,et al.  Room Temperature Synthesis of Hierarchical SrCO3 Architectures by a Surfactant-Free Aqueous Solution Route , 2008 .

[15]  Jianqiang Yu,et al.  Synthesis of Self-Organized Polycrystalline F-doped TiO2 Hollow Microspheres and Their Photocatalytic Activity under Visible Light , 2008 .

[16]  Edward Sacher,et al.  Template‐ and Surfactant‐free Room Temperature Synthesis of Self‐Assembled 3D Pt Nanoflowers from Single‐Crystal Nanowires , 2008 .

[17]  J. Yao,et al.  Controlled Hydrothermal Synthesis of Nickel Phosphite Nanocrystals with Hierarchical Superstructures , 2007 .

[18]  A. Alivisatos,et al.  Crystal splitting in the growth of Bi2S3. , 2006, Nano letters.

[19]  G. Shen,et al.  Self-coiling of Ag2V4O11 nanobelts into perfect nanorings and microloops. , 2006, Journal of the American Chemical Society.

[20]  Zhong Lin Wang,et al.  Periodically twinned nanowires and polytypic nanobelts of ZnS: The role of mass diffusion in vapor-liquid-solid growth. , 2006, Nano letters.

[21]  A. Umar,et al.  ZnO nanosheet networks and hexagonal nanodiscs grown on silicon substrate: growth mechanism and structural and optical properties , 2006 .

[22]  Hua-gui Zheng,et al.  A Simple Aqueous Mineralization Process to Synthesize Tetragonal Molybdate Microcrystallites , 2006 .

[23]  Xinglong Wu,et al.  Self-catalytic synthesis and light-emitting property of highly aligned Mn-doped Zn2SiO4 nanorods , 2005 .

[24]  Markus Antonietti,et al.  Mesocrystals: inorganic superstructures made by highly parallel crystallization and controlled alignment. , 2005, Angewandte Chemie.

[25]  Jianlin Shi,et al.  A mesoporous template route to the low-temperature preparation of efficient green light emitting Zn2SiO4:Mn phosphors. , 2005, The journal of physical chemistry. B.

[26]  G. Shen,et al.  CdS Multipod-Based Structures through a Thermal Evaporation Process , 2005 .

[27]  Zheng Hu,et al.  Vapor-solid growth and characterization of aluminum nitride nanocones. , 2005, Journal of the American Chemical Society.

[28]  Z. L. Wang,et al.  Mesoporous Single‐Crystal ZnO Nanowires Epitaxially Sheathed with Zn2SiO4 , 2004 .

[29]  Helmut Cölfen,et al.  Bio-inspired crystal morphogenesis by hydrophilic polymers , 2004 .

[30]  M. Antonietti,et al.  Polymer-Controlled Morphosynthesis and Mineralization of Metal Carbonate Superstructures (†). , 2003, The journal of physical chemistry. B.

[31]  Zhifeng Ren,et al.  ZnO nanobridges and nanonails , 2003 .

[32]  Zhifeng Ren,et al.  Hierarchical ZnO Nanostructures , 2002 .

[33]  B. Conway,et al.  Investigation of removal of Cr(VI), Mo(VI), W(VI), V(IV), and V(V) oxy-ions from industrial waste-waters by adsorption and electrosorption at high-area carbon cloth. , 2002, Journal of colloid and interface science.

[34]  L. Qi,et al.  A systematic examination of the morphogenesis of calcium carbonate in the presence of a double-hydrophilic block copolymer. , 2001, Chemistry.

[35]  S. Weiner,et al.  Formation of High‐Magnesian Calcites via an Amorphous Precursor Phase: Possible Biological Implications , 2000 .

[36]  T. Weiland,et al.  Biomimetic Morphogenesis of Fluorapatite‐Gelatin Composites: Fractal Growth, the Question of Intrinsic Electric Fields, Core/Shell Assemblies, Hollow Spheres and Reorganization of Denatured Collagen , 1999 .

[37]  R. Kniep,et al.  Biomimetic Growth and Self‐Assembly of Fluorapatite Aggregates by Diffusion into Denatured Collagen Matrices , 1996 .