Electronic Waste to Energy: Self-Powered Electronic Devices and Organic Dye Degradation Using TENG-Assisted Photocatalysis

IF 6.1 3区 材料科学 Q2 GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY
Anusha Kaki, Gouranga Maharana, Navaneeth Madathil, Velupula Mahesh, Khanapuram Uday Kumar, Paul Joseph Daniel, Rakesh Kumar Rajaboina
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Abstract

Electronic waste (e-waste) and the use of portable electronic devices are rapidly increasing due to technological advancements globally, leading to harmful effects on the environment. E-waste causes severe environmental damage, such as the pollution of soil, water, and air. Therefore, there is an urge for effective e-waste management, recycling, and sustainable consumption. In this report, We developed high-performance triboelectric nanogenerators (TENGs) utilizing discarded laptop LCD screens as triboelectric layers for energy harvesting and organic dye pollutant degradation. Among all the fabricated devices, the LCDW4-TENG exhibited exceptional performance with fluorinated ethylene propylene (FEP) as the opposite frictional layer, yielding a Voc of ≈470 V, Isc of ≈ 143 µA, and a power density of 5.04 W m2 at a load resistance of 1 MΩ. The long-term stability of the device is tested over 6,000 cycles and is found to be very stable. This e-waste-based TENG is employed in the treatment of methylene blue organic dye through TENG-assisted photocatalysis. An enhanced degradation efficiency of methylene blue dye is observed with the support of TENG. This work highlights the potential of LCD waste-derived TENGs for driving self-powered electronic devices and environmental remediation applications thereby contributing to the circular economy concept.

Abstract Image

电子废物转化为能源:自供电电子器件和利用teng辅助光催化降解有机染料
由于全球技术的进步,电子废物和便携式电子设备的使用正在迅速增加,导致对环境的有害影响。电子垃圾造成严重的环境破坏,如土壤、水和空气污染。因此,迫切需要有效的电子废物管理、回收和可持续消费。在本报告中,我们开发了高性能的摩擦电纳米发电机(teng),利用废弃的笔记本电脑LCD屏幕作为摩擦电层,用于能量收集和有机染料污染物降解。在所有制备的器件中,以氟化乙丙烯(FEP)为相反摩擦层的LCDW4-TENG表现出优异的性能,在负载电阻为1 MΩ时,产生的Voc为≈470 V, Isc为≈143µa,功率密度为5.04 W m−2。该设备的长期稳定性测试超过6000次循环,发现非常稳定。该电子垃圾为基础的TENG通过辅助光催化处理亚甲基蓝有机染料。在TENG的支持下,亚甲基蓝染料的降解效率得到了提高。这项工作强调了LCD废物衍生的teng在驱动自供电电子设备和环境修复应用方面的潜力,从而为循环经济概念做出了贡献。
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来源期刊
Advanced Sustainable Systems
Advanced Sustainable Systems Environmental Science-General Environmental Science
CiteScore
10.80
自引率
4.20%
发文量
186
期刊介绍: Advanced Sustainable Systems, a part of the esteemed Advanced portfolio, serves as an interdisciplinary sustainability science journal. It focuses on impactful research in the advancement of sustainable, efficient, and less wasteful systems and technologies. Aligned with the UN's Sustainable Development Goals, the journal bridges knowledge gaps between fundamental research, implementation, and policy-making. Covering diverse topics such as climate change, food sustainability, environmental science, renewable energy, water, urban development, and socio-economic challenges, it contributes to the understanding and promotion of sustainable systems.
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