A novel quinone-modified metal-organic frameworks NH2-MIL-101(Fe) was synthesized using a simple chemical method under mild condition. The introduced 2-anthraquinone sulfonate (AQS) can be covalently modified with NH2-MIL-101(Fe) and acts as a redox mediator to enhance the degradation of bisphenol A (BPA) via persulfate activation. The obtained AQS-NH-MIL-101(Fe) was characterized by Fourier transform infrared spectroscopy, X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectra, cyclic voltammetry and electrochemical impedance spectroscopy. AQS-NH-MIL-101(Fe) exhibited better catalytic performance compared with NH2-MIL-101(Fe) and NH2-MIL-101(Fe) with free AQS (NH2-MIL-101(Fe)/AQS). That is, AQS-NH-MIL-101(Fe) was proved to be the most effective in that more than 97.7% of BPA was removed. The degradation rate constants (k) of AQS-NH-MIL-101(Fe) was 9-fold higher than that of NH2-MIL-101(Fe) and 7-fold higher than NH2-MIL-101(Fe)/AQS, indicating that AQS is a great electron-transfer mediator when modified with NH2-MIL-101(Fe). Based on the above results, the possible mechanism of catalytic reaction has been investigated in view of the trapping experiments. In addition, the AQS-NH-MIL-101(Fe) catalyst exhibited excellent stability and can be used several times without significant deterioration in performance.

中文翻译：

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醌改性的NH2-MIL-101（Fe）复合材料作为氧化还原介体，可改善双酚A的降解。

在温和的条件下，采用简单的化学方法合成了一种新型的醌改性的金属有机骨架NH2-MIL-101（Fe）。引入的2-蒽醌磺酸盐（AQS）可以与NH2-MIL-101（Fe）共价修饰，并充当氧化还原介质，通过过硫酸盐活化来增强双酚A（BPA）的降解。通过傅立叶变换红外光谱，X射线衍射，扫描电子显微镜，X射线光电子能谱，循环伏安法和电化学阻抗谱对所得的AQS-NH-MIL-101（Fe）进行表征。与带有游离AQS（NH2-MIL-101（Fe）/ AQS）的NH2-MIL-101（Fe）和NH2-MIL-101（Fe）相比，AQS-NH-MIL-101（Fe）表现出更好的催化性能。也就是说，AQS-NH-MIL-101（Fe）被证明是最有效的，因为去除了97.7％的BPA。AQS-NH-MIL-101（Fe）的降解速率常数（k）比NH2-MIL-101（Fe）的降解速率常数高9倍，比NH2-MIL-101（Fe）/ AQS的降解速率常数高7倍，表明当用NH2-MIL-101（Fe）改性时，AQS是一种出色的电子传递介体。基于以上结果，针对捕集实验研究了可能的催化反应机理。此外，AQS-NH-MIL-101（Fe）催化剂表现出极好的稳定性，可以使用几次而不会显着降低性能。鉴于捕集实验，已经研究了催化反应的可能机理。此外，AQS-NH-MIL-101（Fe）催化剂表现出极好的稳定性，可以使用几次而不会显着降低性能。鉴于捕集实验，已经研究了催化反应的可能机理。此外，AQS-NH-MIL-101（Fe）催化剂表现出极好的稳定性，可以使用几次而不会显着降低性能。