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SCIENCE CHINA Materials, Volume 62 , Issue 12 : 1888-1897(2019) https://doi.org/10.1007/s40843-019-9473-2

Advanced 3D nanohybrid foam based on graphene oxide: Facile fabrication strategy, interfacial synergetic mechanism, and excellent photocatalytic performance

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  • ReceivedJun 1, 2019
  • AcceptedJul 7, 2019
  • PublishedJul 31, 2019

Abstract


Funding

the National Natural Science Foundation of China(51573013,51873016)

the Open Project Program of Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics

Beijing Technology and Business University(QETHSP2019006)


Acknowledgment

This work was supported by the National Natural Science Foundation of China (NSFC, 51573013 and 51873016) and the Open Project Program of Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, Beijing Technology and Business University (QETHSP2019006).


Interest statement

The authors declare no conflict of interest.


Contributions statement

Zhang X, Wen B, and Su Z designed the project; Wei W, Zhang X, and Zhang S performed the experiments; Zhang X and Wei W wrote the paper with support from Wen B and Su Z. All authors contributed to the general discussion.


Author information

Zhiqiang Su was born in 1975 and obtained his PhD degree in 2005 at the Institute of Chemistry, Chinese Academy of Sciences. After a postdoctoral stay at Tsinghua University, he joined Beijing University of Chemical Technology in 2007 and was appointed as full professor in 2012. In 2011 he worked at Friedrich-Schiller-University Jena, Germany as an experienced research fellow of Alexander von Humboldt Foundation. His research interest includes nanohybrids, biomedical materials, biosensors, and bioelectronics. So far, he has published more than 100 peer-reviewed papers with 3300 citations. His H-index is 35.


References

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  • Scheme 1

    Schematic of the preparation of GO-TiO2-CQDs foam.

  • Figure 1

    SEM images of TiO2@glucose (a) and TiO2-CQDs (b); (c) TEM and HRTEM images of TiO2-CQDs; (d–f) elemental analyses of TiO2-CQDs; (g) elemental analysis of TiO2-CQDs prepared by hydrothermal method.

  • Scheme 2

    Photocatalytic degradation mechanism of the synthesized GO-TiO2-CQDs foam on organic dyes under Xenon lamp irradiation.

  • Figure 2

    (a) SEM image of GO foam and (b) GO foam with larger magnification; (c) SEM image of GO-TiO2-CQDs foam and (d) foam with larger magnification.

  • Figure 3

    UV-vis spectra (a), fluorescence spectra (b), zeta potential (c) of TiO2, CQDs and TiO2-CQDs, and Raman shift (d) of TiO2, CQDs and TiO2-CQDs.

  • Figure 4

    FTIR (a), Raman shift (b), XRD patterns (c) and XPS spectra (d) of GO foam and GO-TiO2-CQD foam. The Ti 2p peaks (e) and the C1s peaks (f) of GO-TiO2-CQD foam.

  • Figure 5

    UV-vis spectra of MO degradation with GO foam (a), GO-TiO2 foam (b) and GO-TiO2-CQDs foam (c) with different irradiation times; photocatalytic degradation kinetics of MO (d), MB (e), RhB (f) and the relevant optical image of the degradation with GO foam, GO-TiO2 foam, GO-TiO2-CQD foam and TiO2 powder after 3 h; the error for each data point is not more than 5%, photocatalysis degradation rates of MO (g), MB (h) and RhB (i) at different cycles.

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