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Facile Preparation and Characterization of Polyaniline and CeO2 Co-Decorated TiO2 Nanotube Array and its Highly Efficient Photoelectrocatalytic Activity
| Content Provider | Semantic Scholar |
|---|---|
| Author | Chen, Chunmao Zhao, Danchen Zhou, Qingxiang Wu, Yalin Zhou, Xianqi Wang, Hongyuan |
| Copyright Year | 2019 |
| Abstract | In the present work, polyaniline and CeO2 co-decorated TiO2 nanotube arrays (PANI/CeO2/TiO2 NTAs) were facilely prepared by an electrochemical method. The as-prepared materials were characterized by scanning electron microscopy (SEM), an X-ray diffractometer (XRD), and energy-dispersive X-ray spectroscopy (EDS). The photoelectrocatalytic activity of as-prepared materials was investigated with tetrabromobisphenol A (TBBPA) as the target analyte, and the data showed that PANI/CeO2/TiO2 NTAs resulted in much higher photoelectrocatalytic efficiency than that of other materials. Under optimal conditions, the degradation rate of TBBPA reached a maximum value over 96% in 120 min under simulated solar irradiation. The results indicated that CeO2 and PANI co-modified TiO2 NTAs could narrow the band gap, expand the response from ultraviolet (UV) to visible region, increase the amount of active free radicals, inhibit the recombination rate of electron-hole pairs, and finally enhance the degradation efficiency towards TBBPA owing to the presence of Ce3+/Ce4+ and PANI. Moreover, the degradation reaction followed the first-order kinetics, and degradation rates of the repeated experiments were all over 92% for ten runs. All these results indicated that this novel catalyst earned great potential as a powerful photoelectrocatalyst for the removal of TBBPA and other pollutants. |
| File Format | PDF HTM / HTML |
| DOI | 10.1186/s11671-019-2897-y |
| Alternate Webpage(s) | https://nanoscalereslett.springeropen.com/track/pdf/10.1186/s11671-019-2897-y |
| PubMed reference number | 30783795 |
| Alternate Webpage(s) | https://doi.org/10.1186/s11671-019-2897-y |
| Journal | Medline |
| Volume Number | 14 |
| Journal | Nanoscale Research Letters |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
