Interfacial self‐assembly growth of mesoporous polydopamine nanofilms for formaldehyde sensing

Author:

Chen Bowen1,Wei Facai1,Ma Zhiheng2,Peng Yonghui3,Guo Haitao3,Wang Yuexi3,Guan Shaojian3,Fu Jianwei4,Jing Chengbin1,Cheng Jiangong5,Xu Jiaqiang2,Liu Shaohua1ORCID

Affiliation:

1. State Key Laboratory of Precision Spectroscopy, Engineering Research Center for Nanophotonics & Advanced Instrument, Ministry of Education, School of Physics and Electronic Science East China Normal University Shanghai People's Republic of China

2. NEST Lab, Department of Chemistry, College of Science Shanghai University Shanghai People's Republic of China

3. Chanhigh Holdings Limited (Ningbo) Cang Hai Industry Building Ningbo City Zhejiang Province People's Republic of China

4. School of Materials Science and Engineering Zhengzhou University Zhengzhou People's Republic of China

5. Department State Key Lab of Transducer Technology, Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences Shanghai People's Republic of China

Abstract

AbstractMesoporous polymer nanofilms combine the advantages of the unique structure of mesopores, the quasi‐2D configuration of the films, and the inherent properties of polymers, and have become a kind of ideal candidate for the high‐performance micro‐nano devices due to their highly accessible surface area and exposed active sites. However, the facile preparation of polymer nanofilms with well‐defined mesostructures has remained a great challenge due to the lack of synthetic strategies. In this study, we developed a simple soft‐template interfacial co‐assembly strategy to in‐situ construct mesoporous polydopamine nanofilms with uniform thickness (30 nm) and regularly distributed mesopore arrays (average pore size of 12 nm) on surfaces with different types and morphologies. Furthermore, a single‐layer mesoporous polymer nanofilm was directly grown on a quartz crystal microbalance substrate and its performance for sensing formaldehyde was studied. The resulted sensor showed excellent sensing response, fast response/recovery dynamics, and great stability, presenting a great promising landscape for trace detection of formaldehyde gas.

Funder

National Natural Science Foundation of China

Publisher

Wiley

Subject

Materials Chemistry,Polymers and Plastics,Physical and Theoretical Chemistry

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