A highly efficient self-powered air purification system based on high-voltage-applicable DC triboelectric nanogenerator

IF 16.8 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Nano Energy Pub Date : 2025-04-01 DOI:10.1016/j.nanoen.2025.110947

Shujun Zhang , Ping Liu , Haimao Zhu , Shijing Yang , Yubei Wei , Jiancheng You , Xiude Yang , Gaobo Xu , Qunliang Song

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引用次数: 0

Abstract

Particulate matter (PM) pollution can lead to various diseases and poses a critical threat to human health, which can be effectively mitigated through high-voltage dust removal. The high voltage and low current output of triboelectric nanogenerators (TENGs) can avoid safety problems generated from normal high-voltage sources. However, conventional alternating current TENGs (AC-TENGs) are not a good choice for ionizing air without rectifiers. The newly developed electrostatic breakdown ternary direct-current TENG (EBT-DC-TENG) is a simple and low-cost structure to be used in dust removal. However, spark discharge occurs between the back electrodes of the EBT-DC-TENG when connected to heavy loads, which limits its high-voltage applications. Here, we improved its high-voltage application range by addressing this issue. By integrating the optimized EBT-DC-TENG with a dust removal device, we have demonstrated an effective and safe indoor dust removal system. The optimized EBT-DC-TENG achieves a maximum open-circuit voltage (V_oc) of 18 kV and generates 1.28 × 10¹³ negative air ions per second by driving copper needles at 100 rpm. This system can reduce PM2.5 concentration from 999 to 50 µg/m³ in just 300 seconds within an 18000 cm³ air chamber. It offers a safe and sustainable solution for improving indoor air quality to protect human health.

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来源期刊

Nano Energy CHEMISTRY, PHYSICAL-NANOSCIENCE & NANOTECHNOLOGY

CiteScore

30.30

自引率

7.40%

发文量

1207

审稿时长

23 days

期刊介绍： Nano Energy is a multidisciplinary, rapid-publication forum of original peer-reviewed contributions on the science and engineering of nanomaterials and nanodevices used in all forms of energy harvesting, conversion, storage, utilization and policy. Through its mixture of articles, reviews, communications, research news, and information on key developments, Nano Energy provides a comprehensive coverage of this exciting and dynamic field which joins nanoscience and nanotechnology with energy science. The journal is relevant to all those who are interested in nanomaterials solutions to the energy problem. Nano Energy publishes original experimental and theoretical research on all aspects of energy-related research which utilizes nanomaterials and nanotechnology. Manuscripts of four types are considered: review articles which inform readers of the latest research and advances in energy science; rapid communications which feature exciting research breakthroughs in the field; full-length articles which report comprehensive research developments; and news and opinions which comment on topical issues or express views on the developments in related fields.