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冰雪柔情520新蟲 (初入文壇)
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[求助]
介孔二氧化硅的合成 已有7人參與
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| 請(qǐng)問(wèn)各位大俠,我用480ml水,1gCTAB,0.28g氫氧化鈉,5mlTEOS是否可以形成MCM-41型的介孔二氧化硅。本人做了后拍電鏡不是文獻(xiàn)上提到的結(jié)構(gòu),真心郁悶。導(dǎo)師說(shuō)我的CTAB濃度太低 形成液晶。真心希望可以得到某位高人的指點(diǎn) |
新蟲 (小有名氣)
新蟲 (小有名氣)
銀蟲 (小有名氣)
木蟲 (正式寫手)
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Typically, 0.3 g CTAB and 0.1 g PVP30 were added to a solution containing 90 mL of deionized water and 60 mL of methanol. The solution was adjusted to pH 10.2 by an ammonia solution, and then 600 μL TEOS and 50 μL APTES were added. After stirring for 2.5 h at room temperature, the resultant particles were separated and washed with ethanol and water. The extraction of organic templates for the as-synthesized particles was performed by dispersing these particles into 50 mL of a mixed solution of ethanol and NH4NO3 (0.3 g) at 60 °C for 1 h. The synthesis of FITC-labeled MSNs-NH2 is similar to that of the unlabeled ones, except that FITC-APTES (50 μL) and APTES were added together during the condensation process. 不加APTES,表面就是沒(méi)有修飾氨基的介孔硅,這個(gè)方法你試試,雖然產(chǎn)率低點(diǎn),但是做出來(lái)的是球形的介孔硅,100多nm。 |
鐵桿木蟲 (著名寫手)

新蟲 (小有名氣)
新蟲 (初入文壇)
新蟲 (初入文壇)
鐵桿木蟲 (著名寫手)

鐵桿木蟲 (著名寫手)

新蟲 (小有名氣)
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