Removal of hexavalent chromium from aqueous solution using novel dye-based adsorbent prepared by flocculation

被引：6
|
作者：
Dong, Kaijie [1 ]
Hu, Tao [1 ]
Wei, Gang [1 ]
Liu, Qinze [1 ,2 ]
Gao, Tingting [1 ]
Zhang, Xian [1 ]
Yao, Jinshui [1 ]
机构：
[1] Qilu Univ Technol, Sch Mat Sci & Engn, Jinan, Shandong, Peoples R China
[2] Chinese Acad Sci, State Key Lab Solid Lubricat, Lanzhou Inst Chem Phys, Lanzhou, Gansu, Peoples R China
来源：
SEPARATION SCIENCE AND TECHNOLOGY | 2019年 / 54卷 / 11期
基金：
中国国家自然科学基金;
关键词：
Adsorption; Cr(VI); dye-based adsorbent; flocculation; LAYERED DOUBLE HYDROXIDES; CONGO RED; WASTE-WATER; ADSORPTION; CR(VI); COMPOSITE; NANOCOMPOSITE; SEPARATION; BEHAVIORS; OZONATION;
D O I：
10.1080/01496395.2018.1538242
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In this paper, the dye sludge which was prepared from Congo red solution by flocculation method was further modified by catechol and 1, 6-hexanediamine before usage to remove Cr(VI) ions. This particles were characterized by multiple testing means and the effects of removal, such as contact time, pH value, initial concentration, and temperature, were studied by batch mode. The maximum adsorption capacity of Cr(VI) was 282.48 mg/g and the whole process was spontaneous and endothermic. Hopefully, with the advantages of facile preparation and high adsorption capacity, the dye-based adsorbent has broad application prospects in the field of wastewater treatment.
引用
收藏
页码：1739 / 1748
页数：10
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