Journal
CHEMICAL ENGINEERING JOURNAL
Volume 348, Issue -, Pages 361-369Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2018.04.184
Keywords
Volatile organic compound; Catalytic oxidation; Pd based catalyst; Fiber; Benzene
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Funding
- National Key R&D Program of China [2017YFC0211802]
- National Natural Science Foundation of China [51608504]
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Fiber-based palladium catalysts were synthesized via an ultrasonic-assisted impregnation method on ceramic and glass fiber supports pretreated by leaching with water, sulfuric acid and nitric acid, respectively. The as-prepared catalysts were next tested for the catalytic combustion of benzene. The Pd-Ceramic fiber exhibited better activity than Pd-glass fiber in terms of benzene conversion and carbon dioxide yield, and 0.8 wt% Pd loading was the optimum loading amount. The prepared catalysts were characterized by FE-SEM, BET, XRD, XPS, TEM, in situ DRIFTS and TPD. The results indicated that a relatively large surface area, strong support acidity, well-dispersed Pd particles, and suitable redox and desorption properties all contributed to the good performance of ceramic-fiber-based catalysts. Our findings demonstrate that the Pd-Ceramic fiber catalyst is an effective candidate for application in elimination of volatile organic compounds.
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