Silsesquioxane-Based Triphenylamine-Linked Fluorescent Porous Polymer for Dyes Adsorption and Nitro-Aromatics Detection.

Materials (Basel)

Key Laboratory of Special Functional Aggregated Materials, School of Chemistry and Chemical Engineering, Ministry of Education Shandong University, 27 Shanda Nanlu, Jinan 250100, China.

Published: July 2021

In order to enrich hybrid materials, a novel fluorescent silsesquioxane-based polymer (denoted as PCS-OTS) was synthesized by Friedel-Crafts reaction starting from octavinylsilsesquioxane (OVS) with triphenylamine-functionalized silsesquioxane monomer (denoted as OTS) with AlCl as catalyst. PCS-OTS possessed a high surface area of 816 m/g and a unique bimodal pore structure. The triphenylamine unit endowed PCS-OTS with excellent luminescence, which made it act as a sensitive chemical sensor and detect p-nitrophenol with high sensitivity (K = 81,230 M). Moreover, PCS-OTS can significantly remove dyes, and the respective adsorption capacity for Rhodamine B (RB), Congo red (CR) and Methyl Orange (MO) is 1935, 1420 and 155 mg/g. Additionally, it could simultaneously remove multiple dyes from water by simple filtration and be easily regenerated. This hybrid porous polymer can be a good choice for water treatment.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8306194PMC
http://dx.doi.org/10.3390/ma14143851DOI Listing

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