Construction of Perylene‐based Amphiphilic Micelle and Its Efficient Adsorption and In Situ Photodegradation of Bisphenol A in Aqueous Solution

Abstract

AbstractLow mass‐transfer efficiency and reaction‐driving force make it difficult to realize thorough purification in traditional low‐concentration pollutant treatments. Herein, we propose an “adsorption/catalysis in situ” perylene based bifunctional micelle for efficient, accurate and rapid adsorption and catalytic degradation of low‐concentration bisphenol A (BPA). They show super‐fast (within 10 s), high capacity (448 mg g−1) and selectivity for BPA adsorption, due to π–π, hydrophobic interactions and hydrogen bonding. The BPA degradation efficiency improves by up to 8 times after forming micelles compared with simple perylene nanorods, which is primarily due to the superior mass‐transfer from adsorption. Moreover, self‐assembly can optimize the stacking of the perylene moieties and facilitate charge transfer in micelle, and the regular π–π stacking of inside perylene units enhances the response to visible light, resulting in high catalytic capacity and good cycling stability.