期刊
ACS OMEGA
卷 7, 期 19, 页码 16414-16421出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsomega.2c00373
关键词
-
资金
- National Natural Science Foundation of China [21861044]
- Yunnan Province Highlevel Talent Training Support Program Youth Top Talent Project (2020)
- Yunnan Province Young and Middle-aged Academic and Technical Leaders Reserve Talent Project [202105AC160060]
- Special Basic Cooperative Research Programs of Yunnan Provincial Undergraduate Universities Association [202101BA070001-042, 202101BA070001-031]
Highly stable DUT-52 materials were synthesized and showed excellent adsorption performance for dichromate ions in aqueous solution. The adsorption process followed pseudo second-order kinetics and Langmuir models. The H-bond interaction played an important role in the adsorption mechanism.
Highly stableDUT-52materials were synthesized by the hydrothermalmethod and well-characterized by X-ray diffraction, thermogravimetric analysis,scanning electron microscopy, and X-ray photoelectron spectroscopy (XPS). In orderto systematically study the adsorption of dichromate ions in aqueous solution by theDUT-52materials, a single factor experiment, kinetic experiment, thermodynamicexperiment, competition ion experiment, and material regeneration experiment weredesigned. Based on the H-bond interaction between the dichromate ions and the Hatoms of a NDC2-ligand, theDUT-52materials showed a maximum removal rate of96.4% and a maximum adsorption capacity of 120.68 mgmiddotg-1with excellent selectiveadsorption and material regeneration. In addition, the process of adsorption ofdichromate ions by theDUT-52materials is in accordance with the pseudo second-order kinetics and Langmuir models, and the adsorption mechanism and the importantrole of the H-bond interaction were reasonably explained using the XPS pattern andtheoretical calculation. Accordingly,DUT-52can be regarded as a multifunctionalmaterial for efficiently removing dichromate ions from the wastewater.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据