Synthesis and characterization of polyaniline-modified BiOI: a visible-light-response photocatalyst
- 201 Downloads
BiOI was modified by polyaniline (PANI) via a facile co-precipitation method. The as-prepared composites were characterized by powder X-ray diffraction, field-emission scanning electron microscopy, transmission electron microscope, UV–Vis diffuse reflectance spectra, photocurrent–potential (I–V) curves, transient photocurrents, Electrochemical impedance, Mott–Schottky curves and room photoluminescence emission spectra. The effects of PANI/BiOI composites mass ratio on for rhodamine B (RhB) degradation efficiency under visible light irradiation were systematically investigated. Experimental results showed that the photocatalytic activity of PANI/BiOI (12.5 wt%) reached about 91% removal efficiency of RhB, which was about four times higher than pure BiOI. By capture experiment, the dominant radical during the photocatalysis degradation experiment were further ascertained.
This work was financially supported by the National Natural Science Foundation of China (21663027, 51262028, 21261021), the Science and Technology Support Project of Gansu Province (1504GKCA027), the Program for the Young Innovative Talents of Longyuan and the Program for Innovative Research Team (NWNULKQN-15-2).
Compliance with ethical standards
Conflict of interest
The authors declare that they have no conflict of interest.
- 5.T. Pandiyarajan, R. Saravanan, B. Karthikeyan, F. Gracia, H.D. Mansilla, M.A. Gracia-Pinilla, R.V. Mangalaraja, Sonochemical synthesis of CuO nanostructures and their morphology dependent optical and visible light driven photocatalytic properties. J. Mater. Sci.: Mater. Electron. 28, 2448–2457 (2016)Google Scholar
- 10.B. Zhang, Z. Wang, B. Huang, X. Zhang, X. Qin, H. Li, Y. Dai, Y. Li, Anisotropic photoelectrochemical (PEC) performances of ZnO single-crystalline photoanode: effect of internal electrostatic fields on the separation of photogenerated charge carriers during PEC water splitting. Chem. Mater. 28, 6613–6620 (2016)CrossRefGoogle Scholar
- 34.C. Baiocchi, M. Brussino, E. Pramouro, A. Prevot, L. Palmisano, G. Marci, Characterization of methyl orange and its photocatalytic degradation products by HPLC/UV–vis diode array and atmospheric pressure ionization quadrupole iontrap mass spectrometry. Int. J. Mass Spectrom. 214, 247–256 (2002)CrossRefGoogle Scholar