Ultrafine copper nanoclusters and single sites for Fenton-like reactions with high atom utilities
Authors/Creators
Yu Yin, Edith Cowan UniversityFollow
Wenlang Li
Chunli Xu
Lei Shi, Edith Cowan UniversityFollow
Lai-Chang Zhang, Edith Cowan UniversityFollow
Zhimin Ao
Mengxuan Liu
Min Lu
Xiaoguang Duan
Shaobin Wang
Shaomin Liu
Hongqi Sun, Edith Cowan UniversityFollow
Abstract
© The Royal Society of Chemistry 2020. Catalysts containing both nanoclusters and single atom metal sites have received increasing attention because of their superior catalytic activities to their aggregated counterparts. Herein, ultrafine CuO nanoclusters along with Cu single atoms were anchored onto typical mesoporous silica SBA-15 for Fenton-like reactions, and the obtained catalysts were named UNCu-SBA. Both advanced characterization and computational studies offered convincing evidence for the unique structural feature. XPS and XANES identified the valence state of Cu(ii) on UNCu-SBA. Fenton-like reactions further demonstrated that UNCu-SBA manifested higher activities in comparison with APCu-SBA, which contained aggregated CuO particles. Moreover, the Cu mass normalized rate constant of UNCu-SBA was 18 times larger than that of APCu-SBA, suggesting an exceptional Cu atom utility in UNCu-SBA. The UNCu-SBA catalyst was able to activate H2O2to generate ?OH in a wider pH range of 4-7 than in typical Fenton reactions (2-4). This may direct future advances toward AOP nanocatalysis.
Document Type
Journal Article
Date of Publication
2020
ISSN
20518153
Volume
7
Issue
9
Publication Title
Environmental Science: Nano
Publisher
Royal Society of Chemistry
School
School of Engineering
RAS ID
32877
Funders
Natural Science Foundation of Jiangsu Province
Copyright
subscription content
First Page
2595
Last Page
2606
Comments
Yin, Y., Li, W., Xu, C., Shi, L., Zhang, L. C., Ao, Z., ... Sun, H. (2020). Ultrafine copper nanoclusters and single sites for Fenton-like reactions with high atom utilities. Environmental Science: Nano, 7(9), 2595-2606. https://doi.org/10.1039/d0en00505c