Abstract
Nitro aromatics and heavy metal ions especially Fe3+ ions in aqueous solution are growing detrimental to human beings and biological diversity with industrial processes. Owing to the high porosity, good chemical/thermal stability and well tunability, luminescent covalent triazine frameworks (CTFs) have become an ideal platform for chemical sensing of these hazard molecules/ions. In this study, an previous reported anthracene-based CTF was post-modified by trapping 1O2 to form its endoperoxide derivative (EPO-CTF). Intriguingly, after post-peroxide, the luminescent CTF displayed much difference in sensing behaviors toward nitroaromatic compounds (NACs) and metal ions as compared to the pristine CTF. Based on the experimental and calculation studies, we further investigated the underneath mechanism behind the differences of the sensing ability.
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