The photodegradable polyamide 6 (PA6) material is prepared by adding 2.5% composite photocatalyst into PA6 fibers by centrifugal electrospinning. Even in the absence of microorganisms, the material can be completely mineralized into CO₂ and H₂O by photocatalysis under solar irradiation. The material is expected to be a replacement for traditional disposable PA6 materials to reduce the PA6 microplastics. In order to study the degradation process of PA6, the photodegradation behavior of the model compounds was investigated, and the photocatalytic chain scission and mineralization processes of PA6 were tracked and analyzed via HDMS. It is found that the breaking of PA6 long chain is mainly caused by the oxidation of the C atoms adjacent NH₂ and the fracture of CONH. In addition, the active species that promote the degradation process are main ·OH and minor ·O₂⁻. This analytical idea is beneficial to study the photodegradation pathway of polymers containing amide bonds.

光降解聚酰胺6（PA6）材料是在PA6纤维中加入2.5%的复合光催化剂，采用离心静电纺丝法制备的。即使在没有微生物的情况下，材料也可以在太阳照射下通过光催化作用完全矿化成CO ₂和H ₂ O。该材料有望替代传统的一次性 PA6 材料，以减少 PA6 微塑料。为了研究PA6的降解过程，研究了模型化合物的光降解行为，并通过HDMS跟踪分析了PA6的光催化断链和矿化过程。发现PA6长链的断裂主要是由于邻近NH _{2的C原子被氧化引起的。}和CONH的骨折。此外，促进降解过程的活性物质主要是·OH和次要·O ₂ ^-。这一分析思路有利于研究含酰胺键聚合物的光降解途径。