Abstract Indoor pollutants, such as formaldehyde, pose an increasing threat to human health. Here, regenerated cellulose was combined with a novel visible light-responsive photocatalyst, La0.3Sr0.7TiO3, to prepare a cellulose-based filler that was used to prepare a visible light-responsive photocatalytic paper. The effects of the molecular formula of the photocatalyst, the amount of photocatalyst in the filler and the amount of filler incorporated into the paper on both the ability to degrade organic pollutants, including formaldehyde, and the physical properties of the photocatalytic paper were investigated. SEM, XRD and FTIR were used to analyze the structure and composition of the samples. La0.3Sr0.7TiO3, prepared by the sol-gel method, had a perovskite crystal structure, with a particle size of 100–150 nm. When the La0.3Sr0.7TiO3:cellulose ratio was 6:4, the composite filler had good photocatalytic activity. Photocatalytic paper incorporating 30% cellulose-based filler had optimal photocatalytic efficiency and its mechanical properties were improved compared with normal paper.

中文翻译：

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La0.3Sr0.7TiO3@再生纤维素复合填料制备可见光响应纸的光催化性能

摘要 甲醛等室内污染物对人类健康构成日益严重的威胁。在这里，再生纤维素与新型可见光响应光催化剂 La0.3Sr0.7TiO3 相结合，制备了纤维素基填料，用于制备可见光响应光催化纸。研究了光触媒分子式、填料中光触媒用量和填料掺入量对降解有机污染物包括甲醛的能力和光触媒纸物理性能的影响。SEM、XRD和FTIR用于分析样品的结构和组成。La0.3Sr0.7TiO3 采用溶胶-凝胶法制备，具有钙钛矿晶体结构，粒径为 100-150 nm。当La0.3Sr0.7TiO3：纤维素比为6:4，复合填料具有良好的光催化活性。掺入30%纤维素基填料的光催化纸具有最佳的光催化效率，与普通纸相比，其机械性能有所提高。