On the improvement of visible-responsive photodegradation through artificial cilia

Chang Hung Lu, Chien Hsin Tang, Neha Ghayal, Bivas Panigrahi, Chia-Yuan Chen, Chia-Yun Chen

Research output: Contribution to journalArticle

Abstract

Photocatalysts as a semiconductor material are widely used in the field of water and environment cleaning applications as it equips with favorite features such as chemical and physical stability, easy availability, inexpensive, and non-toxic in nature. Additionally, photocatalysts can convert the light energy of the irradiation into the chemical energy of the electron-hole pairs. Most commonly used TiO2 can function as the efficient photocatalysts in the presence of light. However it is a material which majorly requires UV light for its activation, and it is not practically being useful. In this aspect, the proposed study demonstrated that with a combination of SnFe2O4 nanoparticles with magnetic artificial cilia, a highly efficient catalytic activity can be achieved under the visible light due to the rapid and uniform mixing within the microfluidic device with least energy budget. To identify the optimal advanced oxidation process using the selected photocatalyst running with the microfluidics, a micro-particle image velocimetry analysis was carried out through three modes of artificial cilia rotation. The study also determined the evolution curves of the degradation rate with respect to time for all of three modes of cilia rotation, and a superior performance was achieved with a maximum degradation rate of 81.7% in 60 min using the presented design concept.

Original languageEnglish
Pages (from-to)234-240
Number of pages7
JournalSensors and Actuators, A: Physical
Volume285
DOIs
Publication statusPublished - 2019 Jan 1

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Photodegradation
Photocatalysts
Microfluidics
degradation
Degradation
chemical energy
energy budgets
microfluidic devices
particle image velocimetry
Ultraviolet radiation
Velocity measurement
cleaning
availability
catalytic activity
Cleaning
Catalyst activity
Chemical activation
Availability
Irradiation
activation

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Electrical and Electronic Engineering

Cite this

Lu, Chang Hung ; Tang, Chien Hsin ; Ghayal, Neha ; Panigrahi, Bivas ; Chen, Chia-Yuan ; Chen, Chia-Yun. / On the improvement of visible-responsive photodegradation through artificial cilia. In: Sensors and Actuators, A: Physical. 2019 ; Vol. 285. pp. 234-240.
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On the improvement of visible-responsive photodegradation through artificial cilia. / Lu, Chang Hung; Tang, Chien Hsin; Ghayal, Neha; Panigrahi, Bivas; Chen, Chia-Yuan; Chen, Chia-Yun.

In: Sensors and Actuators, A: Physical, Vol. 285, 01.01.2019, p. 234-240.

Research output: Contribution to journalArticle

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