期刊
PHOTOCHEMISTRY AND PHOTOBIOLOGY
卷 91, 期 1, 页码 42-47出版社
WILEY
DOI: 10.1111/php.12383
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资金
- National Natural Science Foundation of China [20907026]
- High Level Talent Introduction Research Foundation of Qingdao Technological University [C10-210]
ss-Ga2O3 nanorod was first directly prepared by the microwave irradiation hydrothermal way without any subsequent heat treatments, and its characterizations were analyzed by X-ray diffraction (XRD), scanning electron microscope (SEM), high-resolution transmission electron microscope (HRTEM), UV-Vis diffuse reflection spectroscopy techniques, and also its photocatalytic degradation for perfluorooctanoic acid (PFOA) was investigated. XRD patterns revealed that ss-Ga2O3 crystallization increased with the enhancement of microwave power and the adding of active carbon (AC). PFOA, as an environmental and persistent pollutant, is hard decomposed by hydroxyl radicals (HO); however, it is facilely destroyed by ss-Ga2O3 photocatalytic reaction in an anaerobic atmosphere. The important factors such as pH, ss-Ga2O3 dosage and bubbling atmosphere were researched, and the degradation and defluorination was 98.8% and 56.2%, respectively. Reductive atmosphere reveals that photoinduced electron may be the major reactant for PFOA. Furthermore, the degradation kinetics for PFOA was simulated and constant and half-life was calculated, respectively.
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