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
收藏
页码：16634 / 16639
页数：6
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