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Efficient gold recovery by a thiazolyl covalent organic framework
Zhecheng Huang1, Liecheng Guo1, Kai Yu1
1School of Chemistry and Material Science, East China University of Technology, Nanchang, Jiangxi 344000, China. ecitluofeng@163.com.
Chemical Communications (Cambridge, England)
|April 17, 2024
Summary
A new thiazoyl covalent organic framework, ECUT-COF-29, efficiently recovers gold. This material uses visible light to reduce gold ions to solid gold with high adsorption capacity.
Area of Science:
- Materials Science
- Chemistry
- Environmental Science
Background:
- Gold recovery is crucial for economic and environmental reasons.
- Existing methods for gold recovery can be inefficient or environmentally hazardous.
Purpose of the Study:
- To develop a novel material for efficient gold recovery.
- To investigate the use of thiazoyl covalent organic frameworks (COFs) for gold recovery under visible light.
Main Methods:
- Synthesis of a thiazoyl covalent organic framework, ECUT-COF-29.
- Photocatalytic reduction of Au3+ to Au0 using ECUT-COF-29 under visible light irradiation.
- Measurement of adsorption capacity for gold recovery.
Main Results:
- ECUT-COF-29 demonstrated efficient gold recovery capabilities.
- The material achieved a high adsorption capacity of 3714 mg g-1 for gold.
- Visible light irradiation facilitated rapid reduction of Au3+ to Au0.
Conclusions:
- Thiazoyl covalent organic frameworks show significant potential for gold recovery applications.
- ECUT-COF-29 offers a promising, light-driven approach for sustainable gold recovery.
