University of Illinois Urbana-Champaign

Turning food waste into value: Developing triboelectric devices for various applications from pomelo-peel biomass

Li, Longwen

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https://hdl.handle.net/2142/125723

Description

Title
Turning food waste into value: Developing triboelectric devices for various applications from pomelo-peel biomass
Author(s)
Li, Longwen
Issue Date
2024-07-17
Director of Research (if dissertation) or Advisor (if thesis)
Wang, Yi-Cheng
Committee Member(s)
  • Engeseth, Nicki
  • Miller, Michael
Department of Study
Food Science & Human Nutrition
Discipline
Food Science & Human Nutrition
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
M.S.
Degree Level
Thesis
Keyword(s)
  • Food Waste
  • Nanogenerators
  • Porous materials
  • Sensors
Abstract
Food waste is an enormous challenge, with implications for the environment, society, and economy. Every year around the world, 1.3 billion tons of food are wasted or lost, and food-waste disposal costs around $2.6 trillion. Waste valorization has been shown to mitigate these negative impacts. The resulting optimized pomelo-peel biomass-derived porous material-based triboelectric nanogenerator (PP-TENG) had an open circuit voltage of 58 V and a peak power density of 254.8 mW/m2. As porous structures enable such triboelectric devices to respond sensitively to external mechanical stimuli, we tested our optimized PP-TENG’s ability to serve as a self-powered sensor of biomechanical motions. As well as successfully harvesting sufficient mechanical energy to power light-emitting diodes and portable electronics, our PP-TENGs successfully monitored joint motions, neck movements, and gait patterns, suggesting their strong potential for use in healthcare monitoring and physical rehabilitation, among other applications. As such, the present work opens up various new possibilities for transforming a prolific type of food waste into value-added products, and thus could enhance long-term sustainability while reducing food waste.
Graduation Semester
2024-08
Type of Resource
Thesis
Handle URL
https://hdl.handle.net/2142/125723
Copyright and License Information
N/A

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