Volume 137, Issue 9 e202410665
Forschungsartikel

Anion-π Interactions on Functionalized Porous Aromatic Cages for Gold Recovery from Complex Aqueous with High Capacity

Dr. Jianzhu Jiang

Dr. Jianzhu Jiang

Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, National & Local United Engineering Laboratory for Power Battery Institution, Northeast Normal University, Changchun, Jilin, 130024 China

These authors contributed equally to this work.

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Dr. Junning Kou

Dr. Junning Kou

Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, National & Local United Engineering Laboratory for Power Battery Institution, Northeast Normal University, Changchun, Jilin, 130024 China

These authors contributed equally to this work.

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Dr. Qi Wu

Dr. Qi Wu

Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, National & Local United Engineering Laboratory for Power Battery Institution, Northeast Normal University, Changchun, Jilin, 130024 China

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Dr. Li Chen

Dr. Li Chen

Department of Chemistry, Faculty of Science, Yanbian University Yanji, Jilin, 133002 China

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Prof. Dr. Yun Geng

Prof. Dr. Yun Geng

Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, National & Local United Engineering Laboratory for Power Battery Institution, Northeast Normal University, Changchun, Jilin, 130024 China

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Prof. Dr. Guogang Shan

Prof. Dr. Guogang Shan

Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, National & Local United Engineering Laboratory for Power Battery Institution, Northeast Normal University, Changchun, Jilin, 130024 China

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Prof. Dr. Chunyi Sun

Corresponding Author

Prof. Dr. Chunyi Sun

Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, National & Local United Engineering Laboratory for Power Battery Institution, Northeast Normal University, Changchun, Jilin, 130024 China

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Prof. Dr. Zhongmin Su

Prof. Dr. Zhongmin Su

State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, College of Chemistry, Jilin University, Changchun, Jilin, 130024 China

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Prof. Dr. Xinlong Wang

Corresponding Author

Prof. Dr. Xinlong Wang

State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, College of Chemistry, Jilin University, Changchun, Jilin, 130024 China

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First published: 18 January 2025

Abstract

High capacity, selective recovery and separation of precious metals from complex aqueous solutions is essential but remains a challenge in practical applications. Here, we prepared a thiophene-modified aromatic porous organic cage (T-PAC) with high stability for precise recognition and recovery of gold. T-PAC exhibits an outstanding gold uptake capacity of up to 2260 mg/g with fast adsorption kinetics and high adsorption selectivity. It's also used to selectively recover gold from a variety of complex aqueous solutions in a stable and efficient manner. The theoretical calculations and dedicated experiments suggest that anion-π interactions between the [AuCl4] and TFP fractions on T-PAC cooperated with S/N boning and redox effects play the decisive role in the highly efficient gold recovery performance.

Conflict of Interests

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available in the Supporting Information of this article.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.