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分享一篇等电点“新应用”的文献及简单测定方法

已有 594 次阅读 2021-8-23 07:48 |个人分类:催化中国原创|系统分类:科研笔记

等电点在催化剂制备中的应用

http://blog.sciencenet.cn/blog-3913-1228752.html



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https://doi.org/10.1016/j.jece.2021.106173


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https://www.sciencedirect.com/science/article/pii/S2405830020302780

Determination of pHpzc of modified biochar

For the determination of pH value at the point of zero charge of modified biochar, 50 ml 0.1 M NaCl solution was added into a series of 100 ml capped glass tubes. The initial pH (pHi) of solutions was adjusted between 2 and 11 by the addition of 0.1 M HCl or 0.1 M NaOH. After pH adjustment, 0.05 g modified biochar was added to the solutions and suspension was shaken with a speed of 120 rpm at 22 ± 1 °C. After 24 h, the solutions were filtered by 0.45 μm cellulose acetate membrane filters (Sartorius AG) and final pH (pHf) of the filtrates were measured. The difference between the initial and final pH values (ΔpH = pHi − pHf) was plotted versus pHi. The pH at which ΔpH = 0 is as pH value at the point of zero charge (Hafshejani et al., 2015Tangsir et al., 2016).

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https://www.sciencedirect.com/science/article/pii/S0001868609000827





http://blog.sciencenet.cn/blog-3913-1300960.html

上一篇:【华科郭利民】二氯乙烷在RuOx/Co3O4上的催化燃烧:制备方法影响
下一篇:【南通大学王淼】酸刻蚀原位制备富酸性位的SmMnO3@SmMn2O5及其氯苯催化燃烧

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