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Zirconia nanotubes with a length of 25μm, inner diameter of 80nm, and wall thickness of 35nm were prepared by anodization method in mixture of formamide and glycerol (volume ratio=1:1) containing 1wt% NH 4 F and 1wt% H 2 O. Experiments showed that zirconia nanotubes and ultrasonic wave had synergistic degradation effect for methyl orange and the efficiency of ultrasonic wave increased...
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