ZnO纳米流体的生态毒性机理研究与调控
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1.Inactivation of E. coli using ZnO nanofluids and ultrasound
- 关键词:
- Nanofluidics ; Ultrasonics ; Zinc oxide ; Disinfection ; II;VI semiconductors;Antibacterial ; E. coli ; Inactivation ; Nanofluids ; ZnO
- ZhangLingLing;SunWeiQiang;XiaYu;LvYaPing
- 《4th International Conference on Advanced Engineering Materials and Technology, AEMT 2014》
- 2014年
- June 14, 2014-June 15, 2014
- Xiamen, China
- 会议
Combination of disinfection method gives advantages. In this work, inactivation of E. coli using ZnO nanofluids and ultrasound is evaluated. Growth curves of bacteria were investigated to reveal the inactivation activities of ZnO nanofluids and ultrasound. The effects of combination of ZnO nanofluids and ultrasound, ultrasound time, ultrasound induction point and the induction order of ZnO nanofluids and ultrasound were studied. The results suggested that combination of ZnO nanofluids and ultrasound gives better inactivation effect on E. coli when comparing with single disinfection method. Ultrasound for 10 s helped ZnO nanofluids inhibiting bacteria better than ultrasound for 30 s /60 s. Ultrasound induction point (at 0 hr, 2 hr or 4hr) did not affect on ZnO nanofluids to exhibit the inhibiting property. Induction ultrasound prior to adding ZnO nanofluids showed the better inactivation effect on E. coli. The results also displayed that in this work, ultrasound was mainly worked as a pre-treatment step, instead of a disinfection method. © (2014) Trans Tech Publications, Switzerland.
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