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Towards Biomimicking Wood: Fabricated Free-standing Films of Nanocellulose, Lignin, and a Synthetic Polycation
Published on: June 17, 2014
Eco-friendly cellulose paper based triboelectric material regulated by lignocellulose composition
Changmei Lin1, Zhenhao Pei2, Jinxin Lan3
1College of Environmental and Biological Engineering, Putian University, No. 1133 Middle Xueyuan Street, Chengxiang District, Putian City, Fujian Province 351100, People's Republic of China; Fujian Provincial Key Laboratory of Ecology-Toxicological Effects & Control for Emerging Contaminants, Putian University, No. 1133 Middle Xueyuan Street, Chengxiang District, Putian City, Fujian Province 351100, People's Republic of China; Key Laboratory of Ecological Environment and Information Atlas, Putian University, No. 1133 Middle Xueyuan Street, Chengxiang District, Putian City, Fujian Province 351100, People's Republic of China.
This study reveals that lignin content significantly enhances the triboelectric performance of cellulose paper in eco-friendly nanogenerators. Increasing lignin improves voltage and current, demonstrating potential for energy harvesting applications.
Area of Science:
- Materials Science
- Nanotechnology
- Renewable Energy
Background:
- Cellulose paper is a key material for eco-friendly triboelectric nanogenerators (TENGs).
- Previous research focused on surface modifications, neglecting the impact of intrinsic lignocellulose composition.
- Hemicellulose and lignin are key components of lignocellulose fibers.
Purpose of the Study:
- To investigate the influence of hemicellulose and lignin content on the triboelectric performance of cellulose paper.
- To explore new strategies for enhancing TENGs by optimizing lignocellulose composition.
Main Methods:
- Adjusting hemicellulose content using sodium hydroxide treatment.
- Modifying lignin content with sodium chlorite treatment.
- Evaluating triboelectric properties, including open-circuit voltage (VOC) and short-circuit current (ISC).
Main Results:
- Hemicellulose content showed minimal impact on VOC and ISC.
- Increasing lignin content from 0.8% to 8.9% significantly enhanced VOC (49.9 V to 94.7 V) and ISC (2.3 μA to 4.3 μA).
- Lignin's positive surface potential contribution was identified as the mechanism for performance improvement.
Conclusions:
- Lignin content is a critical factor in optimizing the triboelectric performance of cellulose paper.
- This research offers a novel approach to enhance TENGs by controlling lignocellulose composition.
- The improved cellulose paper demonstrated effective energy harvesting by powering 50 LEDs and capturing energy from human motion.
