| Title: | Self-Powered Electrostatic Filter with Enhanced Photocatalytic Degradation of Formaldehyde Based on Built-in Triboelectric Nanogenerators |
| Author(s): | Feng Y; Ling L; Nie J; Han K; Chen X; Bian Z; Li H; Wang ZL; |
| Address: | "Education Ministry Key and International Joint Lab of Resource Chemistry and Shanghai Key Lab of Rare Earth Functional Materials, Shanghai Normal University , Shanghai 200234, PR China. Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences , Beijing 100083, PR China. School of Materials Science and Engineering, Georgia Institute of Technology , Atlanta, Georgia 30332-0245, United States" |
| ISSN/ISBN: | 1936-086X (Electronic) 1936-0851 (Linking) |
| Abstract: | "Recently, atmospheric pollution caused by particulate matter or volatile organic compounds (VOCs) has become a serious issue to threaten human health. Consequently, it is highly desirable to develop an efficient purifying technique with simple structure and low cost. In this study, by combining a triboelectric nanogenerator (TENG) and a photocatalysis technique, we demonstrated a concept of a self-powered filtering method for removing pollutants from indoor atmosphere. The photocatalyst P25 or Pt/P25 was embedded on the surface of polymer-coated stainless steel wires, and such steel wires were woven into a filtering network. A strong electric field can be induced on this filtering network by TENG, while both electrostatic adsorption effect and TENG-enhanced photocatalytic effect can be achieved. Rhodamine B (RhB) steam was selected as the pollutant for demonstration. The absorbed RhB on the filter network with TENG in 1 min was almost the same amount of absorption achieved in 15 min without using TENG. Meanwhile, the degradation of RhB was increased over 50% under the drive of TENG. Furthermore, such a device was applied for the degradation of formaldehyde, where degradation efficiency was doubled under the drive of TENG. This work extended the application for the TENG in self-powered electrochemistry, design and concept of which can be possibly applied in the field of haze governance, indoor air cleaning, and photocatalytic pollution removal for environmental protection" |
| Keywords: | air filter electrostatic adsorption formaldehyde degradation photocatalysis triboelectric generator; |
| Notes: | "PubMed-not-MEDLINEFeng, Yawei Ling, Lili Nie, Jinhui Han, Kai Chen, Xiangyu Bian, Zhenfeng Li, Hexing Wang, Zhong Lin eng Research Support, Non-U.S. Gov't 2017/12/01 ACS Nano. 2017 Dec 26; 11(12):12411-12418. doi: 10.1021/acsnano.7b06451. Epub 2017 Nov 30" |
