Porphyrin-based catalytic oxidation of hydrocarbon bonds is considered to be the most representative biomimetic catalysis. To mimic the biomimetic catalytic oxidation of nature under illumination of visible light, a monolayer of meso-tetrakis (1-methylpyridinium-4-yl) porphyrin immobilized sulfonated polysulfone/ polyethersulfone blend membrane ([email protected]/PES) was prepared via a facile electrostatic assembly method. The visible light response region of TMPyP was expanded after it was immobilized on the SPSf/PES membrane surface, which resulted in the increase of the photocatalytic performance, and the Rhodamine B (RhB) degradation was increased from 30.0% to 93.4%. A photocatalytic membrane reactor (PMR) equipped with [email protected]/PES membrane was employed for RhB treatment under continuous flow filtration coupling with photocatalysis, and the optimized degradation was up to 98.3%. Moreover, the [email protected]/PES membrane can be reused for photocatalytic degradation of RhB after regeneration in TMPyP solution. More importantly, the [email protected]/PES membrane can also efficiently degrade other cationic and anionic dyes (such as degradation of methylene blue 99.1%, acid fuchsin 96.8%). Finally, the oxidation mechanism and degradation pathway of RhB were further investigated by electron spin resonance (ESR), ultra-performance liquid chromatography and high-definition mass spectrometry (UPLCHDMS) and gas chromatography-Mass spectrometry (GC–MS). It was revealed that the photogenerated hole (h⁺), superoxide radical (·O₂⁻), and singlet oxygen (¹O₂) controlled the oxidation process. The degradation of RhB includes N-de-ethylate, wrecked of chromophore structures and opening-ring of benzene.

基于卟啉的烃键催化氧化被认为是最具代表性的仿生催化。自然的在可见光下的照明模拟仿生催化氧化，单层内消旋-四（1-甲基吡啶鎓-4-基）卟啉固定化的磺化聚砜/聚醚砜共混物膜（[保护的电子邮件] / PES）制备通过一种简便的静电组装方法。将TMPyP固定在SPSf / PES膜表面后，可见光响应区域扩大，导致光催化性能提高，若丹明B（RhB）降解率从30.0％增加至93.4％。配备[email保护] / PES膜的光催化膜反应器（PMR）在连续流过滤与光催化的结合下用于RhB处理，优化的降解率高达98.3％。此外，在TMPyP溶液中再生后，[电子邮件保护] / PES膜可重新用于RhB的光催化降解。更重要的是，[电子邮件保护] / PES膜还可以有效降解其他阳离子和阴离子染料（例如，亚甲基蓝的降解率为99.1％，酸性品红的降解率为96.8％）。最后，HDMS）和气相色谱-质谱（GC-MS）。据透露，光生空穴（ħ ⁺），超氧自由基（·O2 ₂ ^- ），和单线态氧（¹ Ò ₂）控制的氧化过程。RhB的降解包括N-去乙基酯，发色团结构破坏和苯的开环。