Volume 133, Issue 11 pp. 6120-6125
Forschungsartikel

Rational Fabrication of Crystalline Smart Materials for Rapid Detection and Efficient Removal of Ozone

Dong Yan

Dong Yan

Key Laboratory of Advanced Energy Materials Chemistry, Ministry of Education, Nankai University, Tianjin, 300071 China

Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Tianjin, 300071 China

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Zhifang Wang

Zhifang Wang

Key Laboratory of Advanced Energy Materials Chemistry, Ministry of Education, Nankai University, Tianjin, 300071 China

Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Tianjin, 300071 China

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Prof. Peng Cheng

Prof. Peng Cheng

Key Laboratory of Advanced Energy Materials Chemistry, Ministry of Education, Nankai University, Tianjin, 300071 China

Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Tianjin, 300071 China

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Prof. Yao Chen

Prof. Yao Chen

State Key Laboratory of Medicine Chemistry Biology, College of Chemistry, Nankai University, Tianjin, 300071 China

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Prof. Zhenjie Zhang

Corresponding Author

Prof. Zhenjie Zhang

Key Laboratory of Advanced Energy Materials Chemistry, Ministry of Education, Nankai University, Tianjin, 300071 China

Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Tianjin, 300071 China

State Key Laboratory of Medicine Chemistry Biology, College of Chemistry, Nankai University, Tianjin, 300071 China

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First published: 15 December 2020
Citations: 11

Dedicated to the 100th anniversary of Chemistry at Nankai University

Abstract

Traditional ozone sensing and removal materials still suffer from high energy consumption and low efficiency. Thus, seeking new ozone-responsive materials with high efficiency and broad working conditions is of great significance. Herein, we first developed covalent organic frameworks (COFs) for smart sensing and efficient removal of ozone. Notably, imine-based COFs possess dramatically fast optical responses (<1 s) to ozone as low as 0.1 ppm under broad working conditions (e.g., in the presence or absence of moisture, room temperature). Moreover, we found that imine-based COFs can also be applied as excellent ozone removers that can efficiently reduce the ozone concentration below the recommended safety limit (<0.1 ppm) for humans. The mechanism for the performance of imine-based COFs was unveiled in-depth by various characterization techniques and analyses. This study not only provides a new type of advanced materials for ozone sensing and removal but also broadens the application scope of COFs.

Conflict of interest

The authors declare no conflict of interest.

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