Simultaneous Enhancements of Ultraviolet-Shielding Properties and Thermal Stability/Photostability of Poly(vinyl chloride) via Incorporation of Defect-Rich CeO2 Nanoparticles

  • Zequan Hu
    Zequan Hu
    State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
    More by Zequan Hu
  • Si Wang
    Si Wang
    State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
    More by Si Wang
  • Xin Zhang
    Xin Zhang
    State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
    More by Xin Zhang
  • Guoli Fan*
    Guoli Fan
    State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
    *Email: [email protected]. Phone: 8610-64451226. Fax: 8610-64425385.
    More by Guoli Fan
  • Yingdi Lv
    Yingdi Lv
    Xi’an Modern Chemistry Research Institute, Xi’an, Shaanxi 710065, P. R. China
    More by Yingdi Lv
  • Xiaodong Zheng*
    Xiaodong Zheng
    Xi’an Modern Chemistry Research Institute, Xi’an, Shaanxi 710065, P. R. China
    *Email: [email protected]
  • Lan Yang
    Lan Yang
    State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
    More by Lan Yang
  • , and 
  • Feng Li*
    Feng Li
    State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
    Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
    *Email: [email protected]
    More by Feng Li
Cite this: Ind. Eng. Chem. Res. 2020, 59, 21, 9959–9968
Publication Date (Web):April 30, 2020
https://doi.org/10.1021/acs.iecr.0c00196
Copyright © 2020 American Chemical Society
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Abstract

In the present work, CeO2 nanoparticles with abundant surface defects and controlled particle size were synthesized by separate nucleation and aging steps followed by a calcination treatment and applied as a multifunctional additive for the preparation of a PVC–CeO2 composite film. The characterization results demonstrated that the as-prepared PVC–CeO2 composite film could completely block UV-C, 98.6% UV-B, and more than 50% UV-A with high transparency in visible light; meanwhile, its initial pyrolysis temperature could be put off by 16 °C compared to that of pristine PVC. Density functional theory calculations and experimental results revealed that the enhanced thermal stability/photostability of PVC–CeO2 composite films is mainly attributed to the close interaction and good compatibility between the CeO2 nanoparticle and PVC matrix, enhanced HCl-capture capability of highly dispersed CeO2 nanoparticles, and the formation of the coordinate complex between Ce atoms in defect-rich CeO2 and labile Cl atoms in PVC main chains. Furthermore, the excellent UV absorption capacity of CeO2 nanoparticles could endow the PVC–CeO2 composite film with significantly improved UV-shielding efficiency. This work provides a new clue for the rational design and synthesis of rare earth-based additives, which are expected to be used in polymers, especially in PVC-based functional materials.

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The Supporting Information is available free of charge at https://pubs.acs.org/doi/10.1021/acs.iecr.0c00196.

  • XRD patterns and SEM images of different CeO2 samples, typical XPS survey of CeO2 nanoparticles, UV–vis absorption spectra of different powder samples, UV–vis light transmittance spectra of PVC–CeO2-4-500 composite films with different CeO2-4-500 contents, 3D-FTIR spectra of the gaseous products evolved from PVC and PVC–CeO2-4-500 films under different pyrolysis temperatures, DTG curves of PVC and PVC–CeO2-4-500 composite films, isothermal TG of the PVC–CeO2 composite films with different CeO2 powder samples, UV–vis light transmittance spectra and tensile strength and elongation at break of PVC and PVC–CeO2-4-500 (2 wt %) composite films before and after UV irradiation, and optimized structure of free 2-chlorobutane molecule, clean stoichiometric CeO2(111) surface, and clean defect-rich CeO2(111) surface (PDF)

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This article is cited by 5 publications.

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  2. Xuejun Duan, Heng Chen, Huan Liu, Ming Chen, Shaojun Chen, Jihua Gao. A citric acid/cysteine based bioadditive for plasticization and enhancing UV shielding of poly(vinyl chloride). Polymer International 2021, 59 https://doi.org/10.1002/pi.6307
  3. Xuan Bie, Kunling Jiao, Chunqin Gong, Baozhong Qu, Daokuan Liu, Shuangchen Ma. The Role of Medium Acid Sites Tuned by Ce Adding in Moderate-Temperature NH3-SCR. Catalysis Letters 2021, 17 https://doi.org/10.1007/s10562-021-03797-0
  4. Yijia Song, Sheng Chen, Yanglei Chen, Yanglei Xu, Feng Xu. Biodegradable and transparent films with tunable UV-blocking property from Lignocellulosic waste by a top-down approach. Cellulose 2021, 28 (13) , 8629-8640. https://doi.org/10.1007/s10570-021-03994-5
  5. Yoki Yulizar, Sumandi Juliyanto, Sudirman, Dewangga Oky Bagus Apriandanu, Rizki Marcony Surya. Novel sol-gel synthesis of CeO2 nanoparticles using Morinda citrifolia L. fruit extracts: Structural and optical analysis. Journal of Molecular Structure 2021, 1231 , 129904. https://doi.org/10.1016/j.molstruc.2021.129904