Pd on a novel nitrogen doped porous carbon derived from task specific ionic liquid and biomass: An efficient catalyst for reduction of organic dyes
Document Type
Article
Publication Date
11-15-2021
Abstract
In attempt to develop low-cost biomass derived carbon materials with improved properties, herein we present a facile method for the fabrication of nitrogen doped carbon through carbonization of beet root, ZnCl2 and our developed cyano/nitrile-free ionic liquid. The resultant N-doped carbon possesses high specific surface area (1297 m(2) g(-1)), abundant micropores and mesopores, an ideal pore size distribution and a partial graphite structure, and high nitrogen hetematom doping. The nanosheet was then applied as a support for the immobilization of Pd nanoparticles to furnish an efficient and recyclable catalyst for the reduction of organic dyes, Rhodamine B and Methyl orange in the presence of NaBH4. A comparative study confirmed that introduction of ionic liquid could remarkably affect the properties of the catalyst in terms of Pd loading, nature of the formed carbon, textural properties and nitrogen content. The effects of the catalyst loading and the reaction temperature were elucidated. Moreover, the kinetic studies revealed that the activation energy, enthalpy, and entropy for the reduction of Methyl orange were as 30.3 kJ mol(-1), 27.7 kJ mol(-1), and -180.1 J mol(-1) K-1, respectively. For Rhodamine B, these values were as follow: 44.8 kJ mol(-1), 41.7 kJ mol(-1), and -136 Jmol(-1) K-1, respectively.
Keywords
Biomass, Ionic liquid, Nitrogen doped carbon, Palladium nanoparticles, Dye reduction
Divisions
CHEMISTRY
Funders
Iran Polymer and Petrochemical Institute
Publication Title
MATERIALS CHEMISTRY AND PHYSICS
Volume
273
Publisher
ELSEVIER SCIENCE SA
Publisher Location
PO BOX 564, 1001 LAUSANNE, SWITZERLAND