Collaborative disposal of beryllium-containing wastewater with modified graphite@chitosan from waste lithium-ion batteries

被引：1

作者：

Zhao, Xu ^{[1
]}

Hu, Fang ^{[2
]}

Yang, Xipeng ^{[2
,4
,5
]}

Sun, Yige ^{[3
]}

Lin, Guanqing ^{[2
,6
]}

Li, Haoshuai ^{[2
]}

Lei, Zhiwu ^{[2
]}

Su, Yucheng ^{[2
]}

Ali, Khan Muhammad Yaruq ^{[2
]}

Hu, Eming ^{[2
]}

Wang, Hongqiang ^{[2
]}

Wang, Qingliang ^{[2
]}

机构：

[1] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Hunan, Peoples R China

[2] Univ South China, Sch Resource & Environm & Safety Engn, Hengyang 421001, Hunan, Peoples R China

[3] Anhui Agr Univ, Coll Resources & Environm, Hefei 230000, Anhui, Peoples R China

[4] Sci Environm Protect Co Ltd, Nonferrous Heavy Met Pollut Control Equipment Huna, Changsha 410000, Hunan, Peoples R China

[5] Sci Environm Protect Co Ltd, Hunan New Energy Wastewater Resource Treatment Eng, Changsha 410000, Hunan, Peoples R China

[6] Guangdong Acad Sci, Inst Comprehens Utilizat Resources, Guangzhou Yueyouyan Mineral Resources Technol Co L, Guangzhou 510630, Guangdong, Peoples R China

来源：

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | 2024年 / 283卷

基金：

中国国家自然科学基金;

关键词：

Waste battery; Gel; Beryllium;

D O I：

10.1016/j.ijbiomac.2024.137698

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

In order to recover and effectively remove beryllium from beryllium-containing wastewater and relieve the environmental pressure caused by waste batteries. In this study, the gel material was synthesized based on the modified graphite material separated from the waste battery, and the graphite-@chitosan composite gel (CWBG@CH) was designed and synthesized. Interestingly, CWBG@CH has a maximum fitted adsorption capacity (Q(emax)) of 83.54 mg/g at pH = 6 and 35 degrees C. The adsorption process of CWBG@CH is controlled by surface complexation and electrostatic attraction. Strong coordination and synergistic adsorption between Be and the carbonic acid/hydroxyl group and phosphoric acid/amino group on CWBG@CH enhances the adsorption capacity and selectivity of CWBG@CH for Be. At the same time, the adsorption-desorption efficiency of the CWBG@CH in 5 times is >85 %. This discovery provides a direction for the recycling of graphite materials from waste batteries and indicates the great potential of CWBG@CH to remove Be(II) from aqueous solutions.

引用

页数：10