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张吉振

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[求助] 光催化剂的表征中紫外可见吸收波长分析是用什么方法测定的?

是普通的紫外吗?
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pzypdl

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【答案】应助回帖

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dy322112: 金币+2, 多谢热心解答 2012-10-21 15:03:12
张吉振: 金币+1, ★★★★★最佳答案 2012-10-27 16:48:50
那是紫外可见漫反射,只是有的是测的漫反射,有的仪器是测出来的吸光度,要有积分球的。
光催化剂的光谱性能测试分为紫外可见漫反射光谱法和紫外可见漫反射吸收光谱两种。两种方法得到光谱都要通过Kublka-Munk方程拟合,来计算禁带宽度,表征不同样品的光谱性能。所以有两个方法,也是两个仪器,都是正确的,都可以算禁带宽度。
参考
http://muchong.com/bbs/viewthread.php?tid=5054501&page=3#pid27

[ Last edited by pzypdl on 2012-10-21 at 14:39 ]
比未知更可怕的是预知,比变化更让人不安的是一成不变!http://emuch.net/bbs/myf.php?ffid=213
2楼2012-10-21 14:34:08
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