WO3 nanofibers on ACF by electrospun for photo-degradation of phenol solution
| Autor: | Xiong Tian, Qiao-li Zhang, Cheng-feng Wang, Hai-xia Tong, Zhao-hui Jiang, Dao-xin Wu |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
Polyvinylpyrrolidone Scanning electron microscope Metals and Alloys General Engineering 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Electrospinning 0104 chemical sciences chemistry.chemical_compound chemistry Nanofiber Polymer chemistry medicine Photocatalysis Phenol 0210 nano-technology Photodegradation Nuclear chemistry medicine.drug Activated carbon |
| Zdroj: | Journal of Central South University. 24:1275-1280 |
| ISSN: | 2227-5223 2095-2899 |
| DOI: | 10.1007/s11771-017-3532-7 |
| Popis: | Electrospun WO3 nanofibers were fabricated by coaxial electrospinning and directly annealing WCl6/polyvinylpyrrolidone (PVP) nanofibers on activated carbon fibres (ACF), and characterized by scanning electron microscopy (SEM) and X-ray diffractometry (XRD). The most suitable condition for electrospinning is the mass ratio of WCl6 to PVP 0.6, appropriate amount DMF and ethanol, a voltage of 28 kV, the reception distance of 15 cm, the humidity range within 10% and 20% and the moving rate of the pump 0.001 mm/s. The photocatalytic activities of WO3 nanofibers were evaluated by the photo-degradation of phenol solution under the irradiation of 500 W xenon lamp. The results showed that, the sizes of the fibers are about 100 nm, and after being photodegraded for 210 min, the concentration of phenol decreased from 20.05 mg/L to 8.60 mg/L. Thus, the photo-degradation rate of WO3 nanofibers for phenol solution is 2.87 mg/(L·h). |
| Databáze: | OpenAIRE |
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