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[求助]
水熱法制備的的納米微粒表面是裸露的嗎? 已有3人參與
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1.如題,通過(guò)水熱法制備的納米微粒(如CdS,ZnO等)表面是否存在穩(wěn)定劑或包覆劑?或者是否存在官能團(tuán)?還是裸露的呢?如果是裸露的,那如何保證其在溶劑中的穩(wěn)定性呢? 2. 水熱法制備納米微粒有什么優(yōu)勢(shì)和缺點(diǎn)? 附文獻(xiàn)中水熱法制備CdS納米線(xiàn)的過(guò)程: cadmium nitrate (1.9 g) and thiourea (1.42 g) were added into a tefl on stainless steel autoclave that had been fi lled with ethylenediamine to 60% of its capacity (50 mL). The autoclave was maintained at 180 °C for 48 h and allowed to cool down to room temperature. A yellow precipitate (CdS nanowires) was fi ltered and washed several times with absolute ethanol and deionized water to remove the residue of organic solvent. |
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