研究目的
Investigating the therapeutic effects of a specific herbal medicine on a particular disease.
研究成果
Flower morphology of ZnO inactivates the pathogens completely within 45 min under solar light irradiation than other morphologies due to efficient separation electron-hole pairs. The enhanced bacterial inactivation of ZnO photocatalyst is related to increase in oxygen vacancy/solar light absorption/DNA fragmentation/protein degradation, decrease in band gap, superior photoresponses, smaller interfacial charge-transfer resistance, and prevention of electron-hole pairs recombination on photocatalytic surface.
研究不足
The technical and application constraints of the experiments, as well as potential areas for optimization.
1：Experimental Design and Method Selection:
The different morphology and size of the zinc oxide (ZnO) were synthesized by a co-precipitation process via variation of calcination temperature from 400 oC to 900 oC.
2：Sample Selection and Data Sources:
All the chemicals were purchased from Sigma Aldrich company of analytical grade.
3：List of Experimental Equipment and Materials:
Powder X-ray diffraction (XRD) method by using X-ray diffractometer (Rigaku, D/MAX 2200HR), Field emission scanning electron microscopy (FESEM) by using JSM-6700F, UV-Vis DRS spectrophotometer (JASCO V 570), portable solar simulator PEC-L01, 150 W short-arc Xe lamp, 100 mW/cm2, Pecell, Am
4：5G). Experimental Procedures and Operational Workflow:
The obtained precipitate was washed with water and ethanol several times. Then, it was dried in air a 70 oC. It was further calcined in air at 400 to 900 oC for 2 h.
5：Data Analysis Methods:
The bacterial inactivation was evaluated under solar light irradiation.
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