24小时热门版块排行榜    

Znn3bq.jpeg
查看: 306  |  回复: 1

envzwl

银虫 (小有名气)

[求助] 求解释

各位老师,小弟在一片文献上看到一个关于TiO2微球的合成方法
2.1. Synthesis of titania microspheres with hierarchical structures
0.25 mL of nonanoic acid was dropped into 20 mL of absolute
alcohol and 80 uL of 0.1 mol/L KCl aqueous solution was added. After
stirring for 15 min, 0.5 mL of tetra-n-butyl titanate was added under
violently stirring. 5 min later, 1 mL of double distilled water was
added. The milky white precursor microspheres suspension was kept
static for 24 h and collected by centrifugation.
The precursor microspheres were dispersed in an ethanol-aqueous
solution. Then the suspension was sealed within a Teflon-lined
autoclave (25 mL) and heated at 160 °C for 16 h. Following wash with
ethanol three times, the precipitate was dried at 40 °C. The
hydrothermal products were further calcined at 600 °C for 4 h to
obtain the targeted products.
想请问其中的KCl起的作用是什么?谢谢!!
回复此楼
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

dongyuyiren

木虫 (正式写手)

【答案】应助回帖

envzwl(金币+20): 2 2011-08-09 16:55:19
在水热合成中加入卤素盐,通常是为了改善晶体生成的形貌颗粒大小,至于卤盐中的卤素怎么改善的,我忘了,好想和他具有较高的电负性有关。当然,这个很多文章都有解释,你可以去下载几篇看看
2楼2011-08-09 16:47:39
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
相关版块跳转 我要订阅楼主 学员bLQGY1 的主题更新
最具人气热帖推荐 [查看全部] 作者 回/看 最后发表
[考研] 291求调剂 +9 关忆北. 2026-04-14 9/450 2026-04-16 22:49 by cfdbai
[考研] 300求调剂 +11 橙a777 2026-04-15 11/550 2026-04-16 22:43 by cfdbai
[考研] 求调剂 +8 小聂爱学习 2026-04-16 10/500 2026-04-16 22:06 by 1shin_ichi
[考研] 294求调剂 +14 淡然654321 2026-04-15 14/700 2026-04-16 21:01 by lpl364211
[考研] 一志愿沪9,生物学326求调剂 +9 刘墨墨 2026-04-15 9/450 2026-04-16 17:14 by 崔崔崔cccc
[考研] 291求调剂 +11 关忆北. 2026-04-14 11/550 2026-04-16 15:18 by jiahl2024
[考研] 药学305求调剂 +7 玛卡巴卡boom 2026-04-11 7/350 2026-04-15 13:21 by 西北望—风沙
[考研] 材料专业344求调剂 +17 hualkop 2026-04-10 22/1100 2026-04-14 16:21 by sxdj2
[考研] 一志愿沪9,326求生物学调剂 +10 刘墨墨 2026-04-13 10/500 2026-04-14 15:16 by zs92450
[教师之家] 转长聘了 +7 简单化xn 2026-04-13 7/350 2026-04-14 14:50 by xindong
[考研] 085600材料与化工349分求调剂 +16 李木子啊哈哈 2026-04-12 17/850 2026-04-14 09:11 by fenglj492
[考研] 考研英一数一338分 +9 长江大学东校区 2026-04-13 10/500 2026-04-14 00:41 by 王珺璞
[考研] 2026硕士调剂_能动_河南农业大学 +4 河南农业大学-能 2026-04-12 4/200 2026-04-13 22:01 by bljnqdcc
[考研] B区0809 ,数一英一,290 求调剂 +3 泠潍1111 2026-04-12 4/200 2026-04-13 20:35 by 学员JpLReM
[考研] 307求调剂 +10 tzq94092 2026-04-10 10/500 2026-04-12 08:18 by wise999
[考研] 346,工科0854求调剂,专硕 +7 moser233 2026-04-10 8/400 2026-04-11 08:52 by 猪会飞
[考研] 284求调剂 +12 archer.. 2026-04-10 13/650 2026-04-11 08:44 by zhq0425
[考研] 材料与化工调剂 +12 否极泰来2026 2026-04-10 13/650 2026-04-11 00:28 by wangjihu
[考研] 0858求调剂 5+5 Gky09300550, 2026-04-10 8/400 2026-04-10 19:13 by chemisry
[考研] 初试261 +3 Asht少 2026-04-10 6/300 2026-04-10 16:38 by Asht少
信息提示
请填处理意见