Rationally Printed Continuous Optical Fibers To Realize Internal Light-Activated Catalysis with Less Irradiation Dissipation

Huang Weizhao, Mei Hui, Yan Yuekai, Pan Longkai, Fan Yuntian, Cheng Laifei, Zhang Litong

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

The accessibility of an external light source to a catalyst surface is an urgent constraint to the enhancement of photocatalytic properties because the energy loss caused by light scattering and absorption from solutions will significantly reduce the light transfer efficiency. Here, a novel photocatalytic metamaterial achieving internal light propagation and transmission is fabricated using a 3D-printed continuous SiO2 optical fiber serving as a light channel. In addition to the traditional external light source that provides a photodegradation efficiency of 8−90% in 90 min under the condition of a 300 W Xe lamp, the photocatalyst with the same quality excited by a 0.5 W laser with a wavelength of 405 nm can realize an additional photodegradation efficiency of 12.05%. CdS synthesized using the hydrothermal method had a relatively higher specific surface area of 30.65 m2 g−1, while the residual performance was 78.50% after cycling 10 times. On the other hand, the continuous fiber as a reinforcement of the 3D polymer structure significantly improved the mechanical properties. The compressive strength and fracture energy absorption increased by nearly 3 and 9 times, respectively. This strategy also simultaneously solved the problems of agglomeration and irrecoverability of the traditional powder catalyst, which paves the way for its large-scale industrial application.

Original languageEnglish
Pages (from-to)6807-6816
Number of pages10
JournalACS Sustainable Chemistry and Engineering
Volume10
Issue number20
DOIs
StatePublished - 23 May 2022

Keywords

  • 3D printing
  • continuous optical fiber
  • inner-light activation
  • photodegradation
  • support

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