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sunshaokai金蟲(chóng) (正式寫(xiě)手)
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[求助]
求助!檸檬酸三納在乙二醇中不溶解?怎么辦! 已有1人參與
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參考趙東元 Angew. Chem. Int. Ed. 2009, 48, 5875-5879. 實(shí)驗(yàn)步驟:Typically, FeCl3 (0.65 g, 4.0 mmol) and trisodium citrate (0.20 g, 0.68 mmol) were first dissolved in ethylene glycol (20 mL), afterward, NaAc (1.20 g) was added with stirring. The mixture was stirred vigorously for 30 min and then sealed in a Teflon-lined stainless-steel autoclave (50 mL capacity). The autoclave was heated at 200 °C and maintained for 10 h, and then allowed to cool to room temperature. The black products were washed with ethanol and deioned water for several times. 和另外一篇文獻(xiàn)One-step synthesis of monodisperse, water-soluble ultra-small Fe3O4 nanoparticles for potential bio-application. Nanoscale 2013, 5, 2133-2141. 實(shí)驗(yàn)步驟:In a typical synthesis of 3.1 nm Fe3O4 nanoparticles, anhydrous FeCl3 (4 mmol) was first vigorously mixed with 40 mL of DEG to form a clear solution. Then, Na3Cit (1.6 mmol) was added and the mixture was heated at 80 C with stirring to form a clear solution. After dissolving anhydrous NaOAc (12.0 mmol) in the above solution, the mixture was transferred into a Teflon-lined stainless-steel autoclave (100 mL capacity) and sealed in air. Following this, the autoclave was kept at 200 C for 6 h. 制備水溶性Fe3O4,發(fā)現(xiàn)檸檬酸三納在EG(乙二醇)或者DEG(二乙二醇)中很難溶解啊,無(wú)論是超聲還是加熱,都是一個(gè)個(gè)小晶體顆粒沉在容器底部,大家有做過(guò)的嗎?都是怎么溶解比較好呢?非常感謝! [ Last edited by sunshaokai on 2013-6-18 at 13:38 ] |
四氧化三鐵納米顆粒制備、修飾及包覆 |
至尊木蟲(chóng) (職業(yè)作家)
堅(jiān)忍的完美主義者
至尊木蟲(chóng) (職業(yè)作家)
堅(jiān)忍的完美主義者
金蟲(chóng) (正式寫(xiě)手)
銅蟲(chóng) (小有名氣)
金蟲(chóng) (正式寫(xiě)手)
銅蟲(chóng) (小有名氣)
金蟲(chóng) (正式寫(xiě)手)
銅蟲(chóng) (初入文壇)
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