吸附
X射线光电子能谱
金属有机骨架
铜
傅里叶变换红外光谱
废水
金属
化学
热液循环
红外光谱学
工业废水处理
比表面积
纳米结构
无机化学
材料科学
核化学
化学工程
纳米技术
有机化学
催化作用
废物管理
工程类
作者
Yuze Zeng,Xia Li,Yuhuan Chen,Shixiong Li
出处
期刊:ACS omega
[American Chemical Society]
日期:2023-09-29
卷期号:8 (40): 36978-36985
被引量:1
标识
DOI:10.1021/acsomega.3c04177
摘要
Cr(VI) and Mn(VII) in industrial wastewater have certain toxicity, and they pose a threat to the environment and human health and safety. Metal-organic frameworks (MOFs) usually have rich adsorption sites and a large specific surface area. They can effectively adsorb Cr(VI) and Mn(VII) from wastewater. In this paper, a two-dimensional copper-based metal-organic framework, {[Cu·(4,4'-bpy)2·(H2O)]·2(NO3)·6(H2O)·(CH3OH)}n (1), is synthesized by hydrothermal synthesis. The structure of 1 is characterized by Fourier transform infrared (IR) spectroscopy, single-crystal X-ray diffraction, element analysis, and X-ray photoelectron spectroscopy (XPS). The results showed that 1 had a two-dimensional network structure, and the specific surface area of the nanostructure was 67.63 m2/g. The nanostructure of 1 could efficiently adsorb Cr(VI) and Mn(VII) from wastewater. The adsorption properties of Cr(VI) and Mn (VII) of 1 showed that the optimal concentration of both adsorbents was 0.2 g/L. It has good adsorption performance in the pH range 4-8. The adsorption performance is the best when pH is 7, which can reach 145 and 83 mg/g, respectively.
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