Co2P nanostructures constructed by nanorods: hydrothermal synthesis and applications in the removal of heavy metal ions
Authors:
- 22 July 2009
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in New Journal of Chemistry
- Vol. 33 (10) , 2055-2059
Abstract
In this paper, we report the successful synthesis of cobalt phosphide (Co2P) nanostructures built up of nanorodsvia a simple hydrothermal route using white phosphorus (WP), sodium hypophosphite and cobalt dichloride as starting reactants in the presence of polyvinylpyrrolidone (PVP, 30 K). The as-obtained product was characterized by means of X-ray powder diffraction (XRD), energy dispersive spectrometry (EDS), (high resolution) transmission electron microscopy (TEM/HRTEM), selected area electron diffraction (SAED) and field emission scanning electron microscopy (FESEM). It was found that sodium hypophosphite played an important role in the formation of the Co2P nanostructures. Some factors influencing the morphology of the product, including the reaction temperature, amount of sodium hypophosphite, surfactant, and so on, were investigated. The capacity of the product to remove heavy metal ions was also studied.Keywords
This publication has 25 references indexed in Scilit:
- Adsorptive removal of Pb(II) by activated carbon prepared from Spartina alterniflora: Equilibrium, kinetics and thermodynamicsBioresource Technology, 2009
- A new approach to modification of natural adsorbent for heavy metal adsorptionBioresource Technology, 2008
- Electro-switchable surfaces for heavy metal waste treatment: Study of polyacrylic acid films grafted on gold surfacesElectrochemistry Communications, 2008
- Studies on copper(II)- and zinc(II)-mixed ligand complexes of humic acidJournal of Hazardous Materials, 2006
- EXAFS measurements of a working catalyst in the liquid phase: An in situ study of a Ni2P hydrodesulfurization catalystJournal of Catalysis, 2006
- Synthesis of Single-Crystalline CoP Nanowires by a One-Pot Metal−Organic RouteJournal of the American Chemical Society, 2005
- One-pot Solution-phase Synthesis of Paramagnetic Co2P NanorodsChemistry Letters, 2004
- Chemical Routes for Production of Transition‐Metal Phosphides on the Nanoscale: Implications for Advanced Magnetic and Catalytic MaterialsChemistry – A European Journal, 2004
- On the surface sites of MoP/SiO2 catalyst under sulfiding conditions: IR spectroscopy and catalytic reactivity studiesJournal of Catalysis, 2004
- A General Methodology for the Synthesis of Transition Metal Pnictide Nanoparticles from Pnictate Precursors and Its Application to Iron−Phosphorus PhasesJournal of the American Chemical Society, 2003