Synthesis of CoCu-LDH nanosheets derived from zeolitic imidazole framework-67 (ZIF-67) as an efficient adsorbent for azo dye from waste water

被引：85

作者：

Saghir, Summaira ^{[1
]}

Fu, Enfa ^{[1
]}

Xiao, Zhenggang ^{[1
]}

机构：

[1] Nanjing Univ Sci & Technol, Sch Chem Engn, 200 Xiaolingwei St, Nanjing 210094, Peoples R China

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 2020年 / 297卷

关键词：

ZIF-67; CoCu-LDH; Methyl orange; Interaction mechanism; Adsorption capacity; LAYERED DOUBLE HYDROXIDES; METHYL-ORANGE; CONGO RED; AQUEOUS-SOLUTION; ADSORPTION CAPACITY; FACILE SYNTHESIS; REMOVAL; PERFORMANCE; CR(VI); MGAL;

D O I：

10.1016/j.micromeso.2020.110010

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

With industrialization, wastewater treatment technologies have drawn huge attention and among different approaches the adsorption process is very attractive because of its simple design and low operational cost. In this paper, CoCu-layered double hydroxide (LDH) was prepared having huge surface area with a large pore diameter, which is significant for obtaining excellent adsorption properties for methyl orange (MO). After detailed adsorption kinetics analysis, the results followed pseudo second order (PSO) kinetic model having good correlation coefficient (R-2) values. However, adsorption isotherms data matched well with the Freundlich isotherm kinetics model. Furthermore, CoCu-LDH exhibits significant adsorption capacity even in the fifth cycle of MO adsorption, indicating that the CoCu-LDH is competitive and cost-effective adsorbent for anionic dyes from industrial wastewater.

引用

页数：11

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