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Thiol-Functionalized Pores via Post-Synthesis Modification in a Metal–Organic Framework with Selective Removal of Hg(II) in Water
- Source :
- Inorganic Chemistry. 58:3409-3415
- Publication Year :
- 2019
- Publisher :
- American Chemical Society (ACS), 2019.
-
Abstract
- Owing to the rapid increase of Hg(II) ions in water resources, the design and development of new adsorbents for Hg(II) removal are becoming a significant challenge in environmental protection. Herein, a thiol-functionalized metal-organic framework (SH-MiL-68(In)) was successfully prepared through a post-synthesis modification procedure, and the framework intactness and porosity were well maintained after this process. SH-MiL-68(In) exhibited selective adsorption performance for Hg(II) ions in water. Meanwhile, SH-MiL-68(In) also shows a high adsorption capacity (450 mg g-1), large adsorption rate (rate constant k2 = 1.25 g mg-1 min-1), and good recycling of adsorption capacity toward Hg(II) ions. The excellent adsorption performance resulted from the strong binding interactions between -SH soft basic groups and Hg(II) soft acidic ions.
- Subjects :
- 010405 organic chemistry
Chemistry
Inorganic chemistry
010402 general chemistry
Post synthesis
01 natural sciences
0104 chemical sciences
Ion
Inorganic Chemistry
Adsorption
Reaction rate constant
Selective adsorption
Physical and Theoretical Chemistry
Porosity
Thiol functionalized
Strong binding
Subjects
Details
- ISSN :
- 1520510X and 00201669
- Volume :
- 58
- Database :
- OpenAIRE
- Journal :
- Inorganic Chemistry
- Accession number :
- edsair.doi.dedup.....5591d44191329c11b0340d9aa9e33f29