| Autor: |
Juang SE; Department of Materials Science and Engineering, Feng Chia University, Taichung 40724, Taiwan.; Department of Anesthesiology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung 83301, Taiwan., Chin NC; Department of Materials Science and Engineering, Feng Chia University, Taichung 40724, Taiwan.; Department of Orthopedics, Antai Tian-Sheng Memorial Hospital, Antai Medical Care Corporation, Pingtung 92842, Taiwan., Chang YC; Department of Materials Science and Engineering, Feng Chia University, Taichung 40724, Taiwan., Chou CM; Department of Surgery, Taichung Veterans General Hospital, Taichung 40705, Taiwan.; College of Medicine, National Yang Ming Chiao Tung University, Taipei 11221, Taiwan.; Department of Post-Baccalaureate Medicine, National Chung Hsing University, Taichung 40227, Taiwan. |
| Abstrakt: |
Zinc cobalt oxide-zinc hydroxide (ZnCo 2 O 4 -Zn(OH) 2 ) microspheres were successfully fabricated on carbon cloth via a sample hydrothermal method. The surface morphology of these microspheres and their efficacy in degrading methyl violet were further modulated by varying the thermal annealing temperatures. Adjusting the thermal annealing temperatures was crucial for controlling the porosity of the ZnCo₂O₄-Zn(OH)₂ microspheres, enhancing their photocatalytic performance. Various analytical techniques were utilized to evaluate the physical and chemical properties of the ZnCo 2 O 4 -Zn(OH) 2 microspheres, including field-emission scanning electron microscopy, energy-dispersive spectroscopy, X-ray diffraction, field-emission transmission electron microscopy, X-ray photoelectron spectroscopy, and UV-vis spectroscopy. Compared to untreated ZnCo 2 O 4 -Zn(OH) 2 microspheres, those subjected to thermal annealing exhibited increased specific surface area and light absorption capacity, rendering them highly effective photocatalysts under UVC light exposure. Subsequent studies have confirmed the superior performance of ZnCo 2 O 4 -Zn(OH) 2 microspheres as a reusable photocatalyst for degrading methyl violet and tetracycline. Furthermore, trapping experiments during the photodegradation process using ZnCo₂O₄-Zn(OH)₂ microspheres identified hydroxyl radicals (·OH) and superoxide radicals (·O₂⁻) as the primary reactive species. |
