| 5 | 1/1 | 返回列表 |
| 查看: 1848 | 回復(fù): 6 | ||
| 當(dāng)前只顯示滿足指定條件的回帖,點擊這里查看本話題的所有回帖 | ||
kenbvtve新蟲 (小有名氣)
|
[交流]
介孔硅合成求助 已有3人參與
|
|
|
http://m.gaoyang168.com/html/201310/6527564.html 遇到了和這個帖子一樣的問題。 按照文獻操作步驟:Hexadecyl trimethyl ammonium chloride (CTAC, 2g) and triethanolamine (TEA) were dissolved in turn in 20 mL water at 95°C under intensive stirring. After 1 h, 1.5 mL of tetraethyl orthosilicate (TEOS) was added dropwise and the resulting mixture was stirred for another 1 h. The products were collected by centrifugation and washed for several times with ethanol to remove the residual reactants. By adjusting the using amount of TEA under the same conditions, the particle size of MSNs was tuned as 25 nm (TEA, 0.08 g), 50 nm (TAE, 0.06 g), 67 nm (TEA, 0.04 g) and 105nm (TEA, 0.02 g). 合成的介孔硅是橢圓的。按照文獻的方法,應(yīng)該是25nm,TEM顯示卻是 50nm。團聚的也很厲害。 我是先將CTAC溶于20ml水中,然后升溫到95度,再加入0.08g TEA,回流1小時,轉(zhuǎn)速400 rpm。然后再加入1.5 mL的TEOS,繼續(xù)回流1 h。 |
新蟲 (初入文壇)
新蟲 (小有名氣)
新蟲 (小有名氣)
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
|
百度網(wǎng)盤 |
360云盤 |
千易網(wǎng)盤 |
華為網(wǎng)盤
在新窗口頁面中打開自己喜歡的網(wǎng)盤網(wǎng)站,將文件上傳后,然后將下載鏈接復(fù)制到帖子內(nèi)容中就可以了。 |
| 最具人氣熱帖推薦 [查看全部] | 作者 | 回/看 | 最后發(fā)表 | |
|---|---|---|---|---|
|
[考研] 材料工程330分求調(diào)劑,一志愿985 +5 | 小材化本科 2026-03-07 | 5/250 |
|
|---|---|---|---|---|
|
[考研] 一志愿北京化工大學(xué)材料與化工296分求調(diào)劑 +14 | 稻妻小編 2026-03-09 | 16/800 |
|
|
[考研] 083000環(huán)境科學(xué)與工程調(diào)劑 +8 | mingmingry 2026-03-09 | 9/450 |
|
|
[考研] 大連大學(xué)化學(xué)專業(yè)研究生調(diào)劑 +3 | 琪久. 2026-03-10 | 8/400 |
|
|
[考研] 化工0817調(diào)劑 +8 | 燦若星晨 2026-03-10 | 8/400 |
|
|
[考研] 298求調(diào)劑 +3 | Vv呀! 2026-03-10 | 3/150 |
|
|
[考研] 086000生物與醫(yī)藥319分求調(diào)劑 +4 | Tolkien 2026-03-07 | 8/400 |
|
|
[考研] 0817一志愿蘇州大學(xué)280復(fù)試調(diào)劑 +9 | kk扛 2026-03-07 | 9/450 |
|
|
[考博] 求材料讀博院校 +9 | yanglei131 2026-03-08 | 9/450 |
|
|
[考研] 085600材料與化工,一志愿廣州985,求調(diào)劑 +15 | qqyyaill 2026-03-05 | 15/750 |
|
|
[考研] 0832食品科學(xué)與工程293調(diào)劑 +3 | 東東不東 2026-03-07 | 3/150 |
|
|
[考研] 材料調(diào)劑 +4 | xxxcm 2026-03-08 | 7/350 |
|
|
[考研] 085701環(huán)境工程專碩求調(diào)劑 +5 | 幼稚園大班打手 2026-03-08 | 5/250 |
|
|
[考研] 0703化學(xué)求調(diào)劑,總分309分,一志愿華南師范 +3 | 花與葉@ 2026-03-08 | 3/150 |
|
|
[考博] 26年博士申請 +4 | 科研狗111 2026-03-07 | 4/200 |
|
|
[考研] 301求調(diào)劑 +11 | 朝天椒的雙馬尾 2026-03-05 | 11/550 |
|
|
[考研] 安徽農(nóng)業(yè)大學(xué)材料與化學(xué)學(xué)院0856材料招收調(diào)劑 +3 | akakk47 2026-03-05 | 9/450 |
|
|
[考研] 334求調(diào)劑 +8 | Trying] 2026-03-06 | 8/400 |
|
|
[考研] 一志愿211 085600 280數(shù)二英二求調(diào)劑 +3 | 月山斜 2026-03-06 | 3/150 |
|
|
[考研] 304求調(diào)劑 +4 | 52hz~~ 2026-03-05 | 5/250 |
|