The preparation of a visible light-absorbing, very thin (2.5 μ m), flexible CdS nanoparticle coated polystyrene (PS) film, CdS-PS, with a 3D-printed backing is described. Scanning electron microscopy confirms that the CdS-PS film comprise a thin layer of CdS nanoparticles (26 ± 4 nm) on just one side of the PS film, with no nanoparticles on the other side. When irradiated with 420 nm or 365 nm radiation, in air-saturated water, the CdS film is photobleached, and dissolved O 2 consumed, due to the photoinduced oxidative corrosion of the CdS by O 2 . In contrast, under the same aerobic conditions, the CdS-PS film is very stable, when a sacrificial electron donor (SED) is present, such as EDTA or ascorbate/ascorbic acid, with the latter appearing the most effective. In the presence of an SED, the CdS-PS film photocatalyses the reduction of the dyes, methyl orange and crystal violet, and the electron-relay, methyl viologen, by different SEDs, using visible a...

中文翻译：

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CdS涂层塑料薄膜用于可见光光催化

描述了具有3D打印背衬的可见光吸收性极薄（2.5μm）柔性CdS纳米颗粒涂覆的聚苯乙烯（PS）薄膜CdS-PS的制备。扫描电子显微镜证实，CdS-PS膜仅在PS膜的一侧包含CdS纳米颗粒的薄层（26±4 nm），而在另一侧则没有纳米颗粒。当用420 nm或365 nm辐射线照射时，由于O 2对CdS的光诱导的氧化腐蚀，在空气饱和的水中，CdS膜被光漂白，溶解的O 2被消耗。相反，在相同的有氧条件下，当存在牺牲电子供体（SED）（例如EDTA或抗坏血酸/抗坏血酸）时，CdS-PS膜非常稳定，后者似乎是最有效的。在SED存在下，CdS-PS膜可光催化还原染料，