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Preparing photocatalytic paper with improved catalytic activity by in situ loading poly-dopamine on cellulose fibre
Photocatalytic paper is a composite photocatalyst generally prepared by loading semiconductors, such as titanium dioxide ( TiO 2 ) nanoparticles on paper, and attracts sustaining interests. In this paper, poly-dopamine (PDA) was loaded on cellulose fibre by in situ oxidative polymerization of dopami...
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Published in: | Bulletin of materials science 2019-04, Vol.42 (2), p.54, Article 54 |
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Main Authors: | , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | Photocatalytic paper is a composite photocatalyst generally prepared by loading semiconductors, such as titanium dioxide (
TiO
2
)
nanoparticles on paper, and attracts sustaining interests. In this paper, poly-dopamine (PDA) was loaded on cellulose fibre by
in situ
oxidative polymerization of dopamine. The PDA-loaded cellulose fibre (PLCF) was used to make
TiO
2
photocatalytic paper together with pristine cellulose fibre (CF) and
TiO
2
nanoparticles to improve the performance of the photocatalytic paper. The loading of PDA on CF and the introduction of
TiO
2
nanoparticles in paper were verified by infrared spectroscopy and X-ray diffraction technique, respectively. As observed by scanning electron microscopy, the introduction of PLCF significantly improved the distribution of
TiO
2
nanoparticles in paper by forming a membranous substance. The photocatalytic performance of the as-prepared photocatalytic paper was analysed by decomposing methyl orange under UV light irradiation. It was confirmed that the occurrence of PLCF significantly improved the photocatalytic performance of the photocatalytic paper. The paper with the highest photocatalytic activity was prepared using a PLCF-to-CF mass ratio of 1:1. The photocatalytic paper with PLCF is stable in the process of repeated application. This work provided a new approach to prepare photocatalytic paper with improved photocatalytic activity. |
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ISSN: | 0250-4707 0973-7669 |
DOI: | 10.1007/s12034-019-1736-1 |