Photocatalytic properties of visible light-responsive paper prepared using La_0.3Sr_0.7TiO₃@regenerated cellulose composite filler

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, La_0.3Sr_0.7TiO₃, 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. La_0.3Sr_0.7TiO₃, prepared by the sol-gel method, had a perovskite crystal structure, with a particle size of 100–150 nm. When the La_0.3Sr_0.7TiO₃: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.

Keywords:

• La₀.₃Sr₀.₇TiO₃
• regenerated cellulose
• photocatalytic paper
• formaldehyde

Correction Statement

This article has been republished with minor changes. These changes do not impact the academic content of the article.

Additional information

Funding

This work was supported by the Open Fund Project of Jiangsu Key Laboratory for Biomass Energy and Materials #1 under [Grant number JSBEM201812] and Natural Science Foundation of Heilongjiang Province #2 under [Grant number C2018007].