In situ immobilization of tin dioxide nanoparticles by nanoporous polymers scaffold toward monolithic humidity sensing devices

Shu Wei; Dong-Dong Han; Li Guo; Yinyan He; Hong Ding; Yong-Lai Zhang; Feng-Shou Xiao

doi:10.1016/j.jcis.2014.06.024

In situ immobilization of tin dioxide nanoparticles by nanoporous polymers scaffold toward monolithic humidity sensing devices

J Colloid Interface Sci. 2014 Oct 1:431:17-23. doi: 10.1016/j.jcis.2014.06.024. Epub 2014 Jun 19.

Authors

Shu Wei¹, Dong-Dong Han¹, Li Guo¹, Yinyan He², Hong Ding², Yong-Lai Zhang³, Feng-Shou Xiao⁴

Affiliations

¹ State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China.
² State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China.
³ State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China. Electronic address: yonglaizhang@jlu.edu.cn.
⁴ Department of Chemistry, Zhejiang University, Hangzhou 310028, China.

PMID: 24980621
DOI: 10.1016/j.jcis.2014.06.024

Abstract

Reported here is in situ immobilization of tin dioxide (SnO2) nanoparticles (NPs) within nanoporous polymer scaffolds for the development of monolithic humidity sensing devices. Through solvothermal polymerization of divinylbenzene (DVB) monomers in the interspaces of SnO2 fine powders, SnO2 NPs could be homogeneously immobilized in polymer matrices, forming a novel composite material. Immobilization of SnO2 NPs in nanoporous polymer matrices not only simplifies the fabrication process of NPs-based sensing devices, but also improves their adsorptive properties. The resultant nanoporous polymer/SnO2 NPs composites with adjustable SnO2 contents possess high BET surface areas, large pore sizes and pore volumes, thus they exhibit high adsorptive capacities for H2O vapor. As a general approach to NPs/nanoporous polymer composites, this work may open up a new way to nanomaterial-based sensing devices that features enhanced adsorptive property.

Keywords: In situ immobilization; NPs-based sensing device; Nanoporous polymer scaffold.