文献类型：期刊文献

英文题名：A robust, eco-friendly, and biodegradable cellulose nanofiber composite film for highly effective formaldehyde removal at room temperature

作者：Sun, Yingchun[1] Liu, Ru[1] Sun, Yuhui[1] Long, Ling[1]

第一作者：Sun, Yingchun

通信作者：Long, L[1]

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, Beijing 100091, Peoples R China

年份：2024

卷号：274

外文期刊名：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES

收录：;EI(收录号：20242616531200);Scopus(收录号：2-s2.0-85197354132);WOS:【SCI-EXPANDED(收录号:WOS:001262509200001)】；

基金：The authors would like to acknowledge the financial support received from the National Key Research and Development Program of China 2022YFD2200703. The authors would like to thank all the re- viewers who participated in the review, as well as MJEditor ( www.mje ditor.com ) for providing English editing services during the preparation of this manuscript.

语种：英文

外文关键词：Ag/CeO2 catalysts; Formaldehyde removal; MnO2; Cellulose nanofiber films

摘要：Formaldehyde (HCHO) poses a significant threat as a common indoor air pollutant, leading to various health issues. However, effectively addressing HCHO removal at room temperature remains a considerable challenge. This paper presents the preparation of a robust, eco-friendly, and biodegradable composite cellulose nanofiber film, incorporating CeO 2 -Ag@MnO 2 catalysts and TEMPO-oxidized cellulose nanofiber (TOCNF), for highefficiency HCHO removal at room temperature. A CeO 2 -Ag@MnO 2 ternary catalyst with a core -shell structure was constructed to enhance the catalytic oxidation activity and stability. This structure increased the number of active sites on the catalyst surface and enhanced the interfacial synergistic effect of Ce -Ag -Mn. The TOCNF physically adsorbed HCHO in the composite film, while the catalyst oxidized it to CO 2 and water. The composite films, particularly those with 20 wt% CeO 2 -Ag@MnO 2 catalyst, exhibited high HCHO removal rates of 91.2 % at 20 degrees C and 99.6 % at 60 degrees C. Furthermore, the TOCNF/20 CAM composite films demonstrated excellent mechanical properties and degradability. This composite film offers an efficient and eco-friendly solution for the catalytic oxidation of HCHO at room temperature.