Cu 2 O nanoparticles supported on carbon nanofibers as a cost-effective and efficient catalyst for RhB and phenol degrad
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ohua Jianga) Department of Polymer Materials, Zhejiang Sci-Tech University, Hangzhou 310018, China; National Engineering Laboratory for Textile Fiber Materials and Processing Technology (Zhejiang), Hangzhou 310018, China; and Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, Hangzhou 310018, China
Depeng Liu and Weijiang Yu Department of Polymer Materials, Zhejiang Sci-Tech University, Hangzhou 310018, China; and National Engineering Laboratory for Textile Fiber Materials and Processing Technology (Zhejiang), Hangzhou 310018, China (Received 27 March 2017; accepted 11 July 2017)
In this work, the hybrid carbon nanofibers (Cu2O/CNFs) containing cuprous oxide (Cu2O) nanoparticles were prepared by a convenient electrospinning method and following a carbonization treatment. The morphology, composition, and microstructure of the Cu2O/CNFs were characterized by scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, and X-ray diffractometer. The as-prepared Cu2O/CNFs exhibited a stronger absorption in the range of 250–700 nm. The band gap energy of the Cu2O/CNFs was estimated to be 2.0 eV. Due to the synergistic effect between photocatalytic activity of Cu2O and excellent adsorption capacity of CNFs, the obtained Cu2O/CNFs exhibited excellent photocatalytic activity for degradation of rhodamine B (RhB) and phenol. The possible mechanism for degradation of RhB and phenol degradation were also discussed. The resultant hybrid carbon composites offer the significant advantages, such as low dosage, high catalytic activity, easy recycling, and excellent stability. We hope that the resultant hybrid composite Cu2O/CNFs could be applied as catalytic materials for further application in the future.
I. INTRODUCTION
With the progress of industry, water pollution has become a serious environmental issue.1 Most of organic compounds which have high toxic and non-biodegradable properties have been released into the environment that pose a high risk to human health.2–4 Degradation of toxic organic pollutants in water has received considerable attention over recent years. To ease the pressure of environmental pollution, many approaches have been provided to deal with pollutants, such as biological treatment with enzyme5 or microorganism,6 physical treatment of wastewater with flocculating agent,7 and photocatalytic treatment with catalysts.8 However, due to the harsh working conditions of biological treatment, especially microbial and enzyme on the environment (such as temperature, pH, and so on), small changes can inactivate enzymes or microorganisms to loss of their Contributing Editor: Xiaobo Chen a) Address all correspondence to this author. e-mail: [email protected] b) These authors contributed equally to this work. DOI: 10.1557/jmr.2017.307
activity, which limits their application scope.9–11 In recent years, semiconductor photocatalysis has been widely investigated for its potential application in environmental protection.12–16 TiO2, as a
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