Journal
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
Volume 402, Issue -, Pages 29-36Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.molcata.2015.03.010
Keywords
Hybrid catalyst; Multi-walled carbon nanotube; Zinc phthalocyanine; Styrene oxidation
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Funding
- Key Laboratory of Regional Environment and Eco-remediation of Ministry of Education, China [SYU-KF-E-12]
- Key Laboratory of Contaminated Environment Control and Regional Ecology Safety, Shenyang University, China [SYU-KF-L-12]
- Priority Academic Program Development of Jiangsu Higher Education Institutions, China [BM2012110]
- Project for Six Major Talent Peaks of Jiangsu Province, China [2011-XCL-004]
- Natural Science Foundation of Changzhou City, China [CJ20140053]
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A novel hybrid catalyst (ZnPc-MWCNTs) was facilely prepared by a ultrasonic impregnation method. The as-prepared hybrid materials were characterized by FT-IR spectra, X-ray diffraction (XRD), diffuse reflectance spectra (DRS), scanning electron microscope (SEM), Raman spectroscopy and transmission electron microscopy (TEM). This hybrid material was employed as catalyst for styrene oxidation in presence of hydrogen peroxide as oxidant. The results showed that styrene was oxidized efficiently in the ZnPc-MWCNTs/H2O2 system. The enhancement of the catalytic activity of ZnPc-MWCNTs hybrid materials was investigated in terms of different oxidation conditions. It was found that the optimum oxidation condition was 40 mg catalyst, 8 h reaction time and reaction temperature of 60 degrees C. Under this condition, the conversion and the selectivity of styrene oxide was up to 94% and 90.6%, respectively. Moreover, the catalytic mechanism of styrene oxidation to benzaldehyde by the ZnPc-MWCNTs hybrid was also discussed. (C) 2015 Elsevier B.V. All rights reserved.
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