Highly Efficient Adsorption of Organic Impurities in Industrial-Grade H2O2 Using π-π Interaction

被引：0

作者：

Wang, Tong ^{[1
,2
]}

Dang, Xue ^{[2
]}

Wang, Yulin ^{[1
]}

Zhang, Jian ^{[1
]}

Wu, Yuechao ^{[1
]}

Zeng, Huiming ^{[1
]}

Ben, Hai-jie ^{[1
]}

Li, Jianguang ^{[1
]}

Lin, Feng ^{[1
]}

Shao, Kang ^{[2
]}

Lv, Liang ^{[1
]}

机构：

[1] Quzhou Univ, Coll Chem & Mat Engn, Quzhou 324000, Peoples R China

[2] Zhejiang Univ Technol, Coll Chem & Mat Engn, Hangzhou 310014, Peoples R China

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2024年 / 63卷 / 38期

关键词：

HYDROGEN-PEROXIDE; ACTIVATED CARBONS; TECHNOLOGY; ISOTHERMS; KINETICS; REMOVAL; WOOD;

D O I：

10.1021/acs.iecr.4c02101

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Electronic-grade H2O2 with few impurities is crucial for the preparation of semiconductor chips. The organic impurities in H2O2 produced by the anthraquinone method are difficult to completely remove. Herein, KOH-modified activated carbon (KAC) is prepared to promote the adsorption of organic impurities through copious pi-pi interaction. The results indicate that KAC-800 showed an excellent adsorption capacity of organic impurities. The removal rates of organic impurities in 35 wt % H2O2 and 50 wt % H2O2 can reach similar to 100% and 98.2%, respectively. Besides, the adsorption process of KAC-800 was based on the pseudo-second-order adsorption isotherm and Freundlich kinetic model. Therefore, KAC-800 is an effective and suitable adsorbent for eliminating organic impurities in H2O2.

引用

页码：16634 / 16639

页数：6

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