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ZHONGYU LI1,2,* , YONGLING FANG1, SONG XU1,* , DANDAN HAN2, DAYONG LU2
TiO2 microspheres were successfully prepared via an improved polymerization-induced colloid aggregation (PICA) process assisted by surfactant. The as-prepared sample was characterized by XRD, SEM, TEM, R aman spectr oscopy and nitrogen adsorption desorption isotherms isotherms. The characterization results indicate that as-prepared TiO2 microspheres are the mixture of anatase and rutile phases. The specific surface area and porosity of the sample were evaluated using Brunauer-Emmett-Teller (BET) method and Barrett-Joyner-Halenda (BJH) models. The photocatalytic activity of the TiO 2 microspheres was investigated by degrading the different target contaminants, including methyl blue (MB), methyl orange (MO) and rhodamine B (RhB) under UV light irradiation . The photocatalytic studies show that the MB, MO and RhB have been almost completely degraded and mineralized after 25 min , 70 min and 140 min of UV light irradiation, respectively. T he photocatalytic degradation rate of as prepared TiO 2 microspheres show comparative capacity compared wit h TiO 2 P25. T hese results indicate the TiO 2 micro s pheres exhibit high photocatalytic activity..
Titanium dioxide, TiO2 microspheres, PICA process, Photocatalytic activity, Colloidal processing.
ZHONGYU LI, YONGLING FANG, SONG XU, DANDAN HAN, DAYONG LU, Fabrication and high photocatalytic activity of TiO2 microspheres formed by surfactant assisted polymerization-induced colloid aggregation, Optoelectronics and Advanced Materials - Rapid Communications, 7, 9-10, September-October 2013, pp.792-796 (2013).
Submitted at: Jan. 21, 2013
Accepted at: Sept. 18, 2013
Optoelectronics and Advanced Materials - Rapid Communications
(2023): 0.5 - 2023 Journal Citation Reports (Clarivate Analytics, 2024)
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