Catalytic Degradation of Nitrobenzene Derivatives by Platinum Nanoparticles Stabilized in Diblock Spherical Polymer Brushes

8 Pages Posted: 20 Feb 2023

See all articles by Ziwei Li

Ziwei Li

Shanghai University of Engineering Science

Chen Hua

affiliation not provided to SSRN

Liang Yu

affiliation not provided to SSRN

Xueke Zhang

Shanghai University of Engineering Science

Yongxiang Chang

Shanghai University of Engineering Science

Chenming Xu

Shanghai University of Engineering Science

kaimin chen

Shanghai University of Engineering Science

Abstract

Metal nanoparticles used as catalysts have received massive attention due to their high catalytic efficiency. However, the long-term dispersion stability of metal nanoparticles is the main issue hindering their practical application. Herein, a new type of core-shell diblock spherical polymer brushes (SPB), poly 2-(methacryloyloxy)ethyl-trimethyl-ammonium chloride-b-poly N-isopropylacrylamide diblock polymer brushes with polystyrene cores (PSV@PMETAC-b-PNIPA), was prepared through surface-initiated photoiniferter-mediated polymerization method (SI-PIMP). The PSV@PMETAC-b-PNIPA (DSPB) was further used as the nanoreactor to prepare and stabilize platinum (Pt) nanoparticles in situ (DSPB@Pt). By controlling the reaction temperature, substances with similar structure but different hydrophilicity, i.e. 4-nitrophenol (4-NP) and nitrobenzene (NB), could be catalyzed by Pt nanoparticles efficiently. Moreover, DSPB@Pt exhibited selective catalysis especially at high temperatures like 50 °C. This work provides a facile route to prepare intelligent catalytic materials and has great application prospect in future.

Keywords: spherical polymer brushes, metal nanoparticles, stimulus-response, selective catalysis

Suggested Citation

Li, Ziwei and Hua, Chen and Yu, Liang and Zhang, Xueke and Chang, Yongxiang and Xu, Chenming and chen, kaimin, Catalytic Degradation of Nitrobenzene Derivatives by Platinum Nanoparticles Stabilized in Diblock Spherical Polymer Brushes. Available at SSRN: https://ssrn.com/abstract=4364424 or http://dx.doi.org/10.2139/ssrn.4364424

Ziwei Li

Shanghai University of Engineering Science ( email )

shanghai, 201620
China

Chen Hua

affiliation not provided to SSRN ( email )

No Address Available

Liang Yu

affiliation not provided to SSRN ( email )

No Address Available

Xueke Zhang

Shanghai University of Engineering Science ( email )

shanghai, 201620
China

Yongxiang Chang

Shanghai University of Engineering Science ( email )

shanghai, 201620
China

Chenming Xu

Shanghai University of Engineering Science ( email )

shanghai, 201620
China

Kaimin Chen (Contact Author)

Shanghai University of Engineering Science ( email )

shanghai, 201620
China

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