英语翻译

英语翻译

题目
英语翻译
Mn doped ZnS nanoparticles were prepared by coprecipitation method at room temperature.For 0.02 Mn doped ZnS,at first,50 ml each of both Zinc nitrate solution,manganese nitrate and saturated solution of
sodium sulfide in methanol are prepared.Zinc nitrate
solution and manganese acetate added solution are first
vigorously stirred using magnetic stirrer up to 1 h,and
then the solution of sodium sulfide is mixed with the
solution of Zinc nitrate and manganese acetate drop
wise up to PH 8.The precipitate separated from the
solution by filtration,washed several times with
distilled water and methanol to remove all sodium
particles.The wet precipitate is then dry and to obtain
ZnS nanoparticles.The wet precipitate is then dried to
obtain Mn doped ZnS nanoparticles.Using the same
method Zn1-xMnxS (x=0.00 & 0.05) samples were
prepared.
答案
举一反三
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
奥巴马演讲不用看稿子.为什么中国领导演讲要看?
想找英语初三上学期的首字母填空练习……
英语翻译
1,人们染上烟瘾,最终因吸烟使自己丧命.
最新试题
热门考点

超级试练试题库

© 2017-2019 超级试练试题库,All Rights Reserved.