Selective heterogeneous catalytic hydrogenation of ketone (C=O) to alcohol (OH) by magnetite nanoparticles following langmuir-hinshelwood kinetic approach

Muhammad Tariq Shah, Aamna Balouch, Kausar Rajar, Sirajuddin, Imdad Ali Brohi, Ali Umar Akrajas

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Magnetite nanoparticles were successfully synthesized and effectively employed as heterogeneous catalyst for hydrogenation of ketone moiety to alcohol moiety by NaBH4 under the microwave radiation process. The improvement was achieved in percent recovery of isopropyl alcohol by varying and optimizing reaction time, power of microwave radiations and amount of catalyst. The catalytic study revealed that acetone would be converted into isopropyl alcohol (IPA) with 99.5% yield in short period of reaction time, using10 μg of magnetite NPs (Fe3O4). It was observed that the catalytic hydrogenation reaction, followed second-order of reaction and the Langmuir-Hinshelwood kinetic mechanism, which elucidated that both reactants get adsorb onto the surface of silica coated magnetite nanocatalyst to react. Consequently, the rate-determining step was the surface reaction of acetone and sodium borohydride. The current study revealed an environment friendly conversion of acetone to IPA on the basis of its fast, efficient, and highly economical method of utilization of microwave irradiation process and easy catalyst recovery.

Original languageEnglish
Pages (from-to)6480-6489
Number of pages10
JournalACS Applied Materials and Interfaces
Volume7
Issue number12
DOIs
Publication statusPublished - 1 Apr 2015

Fingerprint

Magnetite Nanoparticles
Magnetite nanoparticles
2-Propanol
Acetone
Ketones
Ferrosoferric Oxide
Hydrogenation
Alcohols
Catalysts
Kinetics
Magnetite
Microwaves
Recovery
Microwave irradiation
Surface reactions
Silicon Dioxide
Silica
Sodium

Keywords

  • alcohol
  • heterogeneous hydrogenation
  • ketone
  • magnetite nanoparticles
  • microwave radiation

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Selective heterogeneous catalytic hydrogenation of ketone (C=O) to alcohol (OH) by magnetite nanoparticles following langmuir-hinshelwood kinetic approach. / Shah, Muhammad Tariq; Balouch, Aamna; Rajar, Kausar; Sirajuddin; Brohi, Imdad Ali; Akrajas, Ali Umar.

In: ACS Applied Materials and Interfaces, Vol. 7, No. 12, 01.04.2015, p. 6480-6489.

Research output: Contribution to journalArticle

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