Hasi Qi-Meige, Yu Jiale, Guo Yuyan, Hu Sanshan, Jiang Shuai, Xiao Chaohu, Li An, Chen Lihua
College of Chemical Engineering, Northwest Minzu University, Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission, Gansu Provincial Biomass Function Composites Engineering Research Center, Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in University of Gansu ProvinceGa, Gansu Province Research Center for Basic Sciences of Surface and Interface Chemistry, Lanzhou, Gansu 730030, PR China.
Center of Experiment, Northwest Minzu University, Lanzhou, Gansu 730030, PR China.
J Colloid Interface Sci. 2025 Feb;679(Pt A):811-823. doi: 10.1016/j.jcis.2024.10.029. Epub 2024 Oct 9.
Conjugated microporous polymers (CMPs) are widely used in the field of photocatalysis due to their unique conjugated structures and various synthesis methods. Herein, we report the design and synthesis of conjugated microporous polymers hollow spheres (CMPs-HS) superhydrophilic modified by acetylcysteine (CMPs-HS-S) and compounded with the inorganic semiconductor material titanium dioxide (CMPs-HS-S/TiO) for efficient photocatalytic degradation. To facilitate recycling, the composite membrane material was prepared by combining the materials mentioned above with PVDF membrane. The composite membrane materials had good hydrophilic and photocatalytic properties. Under visible light, the degradation rate of tetracycline (TC) (10 mg/L 180 min) reached 90 %, and the bactericidal rates for Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) were 89 % and 99.99 %, respectively. The efficient photocatalytic performance of the composite membranes could be attributed to the hollow sphere structure of CMPs and the role of TiO as a photogenic electron transfer platform. Additionally, the hydrophilicity of the membrane also helped to accelerate the occurrence of photocatalytic reactions. After electron paramagnetic resonance (EPR) detection, h, O and O were proved to be important reactive substances, which played a major role in degradation. These studies reflect the versatility of CMPs-based photocatalysts and provide a new idea for the future development of CMPs-based photocatalysts.
共轭微孔聚合物（CMPs）因其独特的共轭结构和多样的合成方法而在光催化领域得到广泛应用。在此，我们报道了经乙酰半胱氨酸超亲水改性的共轭微孔聚合物空心球（CMPs-HS）（CMPs-HS-S）的设计与合成，并将其与无机半导体材料二氧化钛复合（CMPs-HS-S/TiO）用于高效光催化降解。为便于回收利用，将上述材料与聚偏氟乙烯膜结合制备了复合膜材料。该复合膜材料具有良好的亲水性和光催化性能。在可见光下，四环素（TC）（10 mg/L，180分钟）的降解率达到90%，对大肠杆菌（E. coli）和金黄色葡萄球菌（S. aureus）的杀菌率分别为89%和99.99%。复合膜的高效光催化性能可归因于CMPs的空心球结构以及TiO作为光生电子转移平台的作用。此外，膜的亲水性也有助于加速光催化反应的发生。经过电子顺磁共振（EPR）检测，证明h、O和O是重要的活性物质，它们在降解过程中起主要作用。这些研究体现了基于CMPs的光催化剂的多功能性，并为基于CMPs的光催化剂的未来发展提供了新思路。
