Biomass-Derived Activated Carbon Supported Fe<sub>3</sub>O<sub>4</sub> Nanoparticles as Recyclable Catalysts for Reduction of Nitroarenes

Veerakumar, Pitchaimani; Muthuselvam, I. Panneer; Hung, Chin‐Te; Lin, King‐Chuen; Chou, F. C.; Liu, Shang-Bin

doi:10.1021/acssuschemeng.6b01727

Cited by 121 publications

(59 citation statements)

References 87 publications

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“…Similar amount of the Ar‐NO 2 , AuVNF, isopropanol and KOH initially mixed under magnetic stirring at room temperature was transferred to a Teflon lined autoclave and the tightly sealed autoclave was placed in an oven at 100 °C for 12 h. After 12 h of reaction, the product of Ar‐NH 2 was found to be 88% without any other minor products. The high product yield in autoclave condition might be due to the fast generation of insitu hydrogen from isopropanol …”

Section: Resultsmentioning

confidence: 99%

“…Like the OER and HER, the success in nitro‐arene reduction (NAR) reactions using isopropanol as internal reducing agent is very much limited . Till date only few catalytic systems are known to do the NAR at the expense of isopropanol oxidation . NAR reactions are commonly performed using reducing agents like sodium borohydride, hydrazine etc.…”

Section: Introductionmentioning

confidence: 99%

“…However, the presence of such reducing agents hampers the chemo‐selectivity of the product and also destroys the heterogeneity of the nanocatalyst . Nowadays, isopropanol is considered to be one of the alternate sources of hydrogen with no toxicity in NAR . Therefore, the catalyst that would do the NAR in isopropanol is highly demanding making the process to be much greener.…”

Section: Introductionmentioning

confidence: 99%

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Self‐Assembled Monolayer Stabilized Gold‐Vanadate Nanoflute for Water Splitting Reactions

et al. 2019

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Vanadium oxide (VOx) decorated with gold‐nanoparticles via self‐assembled monolayer approach is herein reported to be an efficient electrocatalyst for both oxygen and hydrogen evolution reactions (OER and HER) in alkali medium. The voids created in the nanoflute of gold‐vanadate were believed to be responsible for high mass transfer allowing the material to be highly applicable as a catalyst for water splitting and nitro‐arene reduction. The nanoflute exhibited high current density with low onset potential value in both OER and HER. The overpotential value at 10 mAcm−2 was observed to be 310 mV with onset potential of 1.43 V in case of OER while the overpotential value for HER was measured to be 282 mV. The nanocatalyst was found to be stable upto 10 h with minimal increment in the overpotential value. The Tafel plot value of 127 mVdec−1 in OER and 131 mVdec−1 in HER also signified for the high efficacy of the catalyst towards splitting of water molecules under high basic condition. The same material was also used as catalyst for reduction of various nitro‐arenes in isopropanol with 0.25 M KOH. The liberation of hydrogen via the oxidation of isopropanol was supposed to be responsible for reduction of nitro‐arenes. The ability of the catalyst to oxidize isopropanol was substantiated from electrochemical studies.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Self‐Assembled Monolayer Stabilized Gold‐Vanadate Nanoflute for Water Splitting Reactions

et al. 2019

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“…Recently, nanoporous carbons derived from biomass sources have inspired more research interest due to the advantages of abundant, sustainable, relatively low cost, large specific surface area, and high affinity to some organic compounds . Just because of these excellent characteristics, they have been developed as good electric supercapacitors , catalysts , and adsorbents . Until now, a wide variety of biomass materials have been applied as carbon precursors to prepare nanoporous carbons, such as banana peels , rice husk , coconut shells , cotton , swim bladders , palm kernel shell, wheat straw , and so on.…”

Section: Introductionmentioning

confidence: 99%

Cost‐efficient magnetic nanoporous carbon derived from citrus peel for the selective adsorption of seven insecticides

Zhou

Cao

et al. 2018

J of Separation Science

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A magnetic solid-phase extraction adsorbent that consisted of citrus peel-derived nanoporous carbon and silica-coated Fe O microspheres (C/SiO @Fe O ) was successfully fabricated by co-precipitation. As a modifier for magnetic microspheres, citrus peel-derived nanoporous carbon was not only economical and renewable for its raw material, but exerted enormous nanosized pore structure, which could directly influence the type of adsorbed analytes. The C/SiO @Fe O also possessed the advantages of Fe O microspheres like superparamagnetism, which could be easily separated magnetically after adsorption. Integrating the superior of biomass-derived nanoporous carbon and Fe O microspheres, the as-prepared C/SiO @Fe O showed high extraction efficiency for target analytes. The obtained material was characterized by scanning electron microscopy, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and the Brunauer-Emmett-Teller method, which demonstrated that C/SiO @Fe O was successfully synthesized. Under the optimal conditions, the adsorbent was selected for the selective adsorption of seven insecticides before gas chromatography with mass spectrometry detection, and good linearity was obtained in the concentration range of 2-200 μg/kg with the correlation coefficient ranging from 0.9952 to 0.9997. The limits of detection were in the range of 0.03-0.39 μg/kg. The proposed method has been successfully applied to the enrichment and detection of seven insecticides in real vegetable samples.

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“…Functionalization of the surface of magnetite nanoparticles is a well‐known method for the preparation of magnetically recyclable heterogeneous catalysts. Homogeneous catalysts can be immobilized with the aid of appropriate linkers or ligands on the surface of magnetite nanoparticles …”

Section: Introductionmentioning

confidence: 99%

Click functionalization of magnetite nanoparticles: A new magnetically recoverable catalyst for the selective epoxidation of olefins

Masteri‐Farahani

Shahsavarifar

2017

Applied Organom Chemis

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A new magnetically recoverable heterogeneous molybdenum catalyst was developed by means of a click chemistry approach. First, silica‐coated magnetite nanoparticles were functionalized using a bidentate ligand via thiol–ene click reaction of mercaptopropyl‐modified magnetite nanoparticles with acrylic acid. Then, a molybdenum complex was covalently supported on the surface of the clicked silica‐coated magnetite nanoparticles. The prepared catalyst was characterized using Fourier transform infrared and inductively coupled plasma optical emission spectroscopies, X‐ray diffraction, vibrating sample magnetometry and transmission electron microscopy. The catalytic performance of the prepared heterogeneous catalyst was investigated in the epoxidation of olefins with tert‐butyl hydroperoxide as oxidant. This catalyst could be reused for five runs without significant loss of activity and selectivity.

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Biomass-Derived Activated Carbon Supported Fe₃O₄ Nanoparticles as Recyclable Catalysts for Reduction of Nitroarenes

Cited by 121 publications

References 87 publications

Self‐Assembled Monolayer Stabilized Gold‐Vanadate Nanoflute for Water Splitting Reactions

Self‐Assembled Monolayer Stabilized Gold‐Vanadate Nanoflute for Water Splitting Reactions

Cost‐efficient magnetic nanoporous carbon derived from citrus peel for the selective adsorption of seven insecticides

Click functionalization of magnetite nanoparticles: A new magnetically recoverable catalyst for the selective epoxidation of olefins

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Biomass-Derived Activated Carbon Supported Fe3O4 Nanoparticles as Recyclable Catalysts for Reduction of Nitroarenes

Cited by 121 publications

References 87 publications

Self‐Assembled Monolayer Stabilized Gold‐Vanadate Nanoflute for Water Splitting Reactions

Self‐Assembled Monolayer Stabilized Gold‐Vanadate Nanoflute for Water Splitting Reactions

Cost‐efficient magnetic nanoporous carbon derived from citrus peel for the selective adsorption of seven insecticides

Click functionalization of magnetite nanoparticles: A new magnetically recoverable catalyst for the selective epoxidation of olefins

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Biomass-Derived Activated Carbon Supported Fe₃O₄ Nanoparticles as Recyclable Catalysts for Reduction of Nitroarenes