Synthesis of magnetically separable adsorbents through the incorporation of protected nickel nanoparticles in an activated carbon |
| |
Authors: | Pedro Gorria,Jesú s A. Blanco |
| |
Affiliation: | a Departamento de Fisica, Universidad de Oviedo, 33007 Oviedo, Spain b Instituto Nacional del Carbón (CSIC), P.O. Box 73, 33080 Oviedo, Spain |
| |
Abstract: | We present a simple and versatile route to prepare magnetically separable porous carbons from commercial activated carbons. The magnetic properties of the composite are provided by nickel nanoparticles (around 8-15 nm), which are produced within the porous network by means of the thermal treatment at 600 °C of an activated carbon impregnated with a nickel salt and sucrose. This synthetic strategy allows the magnetic nanoparticles to be protected against acid attack. The magnetic composite thus obtained exhibits a large surface area and a high pore volume. An important advantage of this composite is that exhibits, at room temperature, low coercivity (∼0.1 kOe), allowing it to be easily manipulated by means of low external magnetic fields. |
| |
Keywords: | Activated carbon Magnetic properties |
本文献已被 ScienceDirect 等数据库收录! |
|