Green removal of pyridine from water via adsolubilization with lignosulfonate intercalated layered double hydroxide

被引：19
作者：
Xia, Mengqi [1 ]
Jin, Cheng [1 ]
Kong, Xianggui [1 ]
Jiang, Meihong [1 ]
Lei, Deqiang [2 ]
Lei, Xiaodong [1 ]
机构：
[1] Beijing Univ Chem Technol, Beijing, Peoples R China
[2] Huazhong Univ Sci & Technol, Wuhan, Hubei, Peoples R China
来源：
ADSORPTION SCIENCE & TECHNOLOGY | 2018年 / 36卷 / 3-4期
基金：
中国国家自然科学基金;
关键词：
Adsorption; wastewater treatment; adsolubilization; layered double hydroxide; regeneration; IMMOBILIZED PIMELOBACTER SP; AQUEOUS-SOLUTION; ADSORPTION BEHAVIOR; BIODEGRADATION; HYDROTALCITE; DERIVATIVES; ADSORBENT; CO32;
D O I：
10.1177/0263617417737642
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
In this work, lignosulfonate intercalated Mg2Al layered double hydroxide was fabricated by coprecipitation method, which was used as a functional adsorbent for removing pyridine from wastewater. The X-ray powder diffraction and Fourier transformed infrared were carried out to investigate the structure of the product. In the removal process, the as-prepared lignosulfonate intercalated Mg2Al layered double hydroxide sample exhibited good adsolubilization property for pyridine, with maximum capacity of 400.8 mg g(-1) in initial pyridine concentration of 400 mg/l and the removal percentage achieved about 87.9%. In addition, the influence of pH, time, and initial concentration of pyridine on the adsorption capacity was also examined. Moreover, the adsorption kinetic followed the pseudo-second-order model. Furthermore, after regeneration, the adsorbent can still show high adsorption capacity even for 10 cycles of desorption-adsorption. It hoped that lignosulfonate intercalated Mg2Al layered double hydroxide can be used as adsorbent for the removal of organic pollutants in wastewater.
引用
收藏
页码：982 / 998
页数：17
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