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[求助]
SiO2@TiO2問題 已有1人參與
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Fe3O4@SiO2obtained in the previous step was redispersed in ethyl alcohol (10 mL) under sonication for 10 min. Tetrabutyl titanate (160 mL) and ethyl alcohol (1 mL) were added to a dried beaker (10 mL capacity) and stirred evenly, followed bythe addition of the suspension of Fe3O4@SiO2(5 mL). Then, ultra-pure water (3 mL) was put in a teon-lined stainlesssteel autoclave (60 mL capacity) and the beaker containing the mixture solution was transferred to it. The autoclave was heated to and maintained at 150 C for 750 min. 請教一下大家,為什么要把燒杯和混合溶液都放入含3mL純水的反應(yīng)釜里(the beaker containing the mixture solution )? |
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