Reversed configuration of photocatalyst to exhibit improved properties of basic processes compared to conventional one

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  • ReceivedJan 16, 2020
  • AcceptedApr 20, 2020
  • PublishedMay 7, 2020


Funded by

the National Natural Science Foundation of China(21633009,21925206)

Chinese Academy of Sciences(DNL,201913)

International Partnership Program of Chinese Academy of Sciences(121421KYSB20190025)

the DICP foundation of innovative research(DICP,I201927)


This work was supported by the National Natural Science Foundation of China (21633009, 21925206); the Dalian National Laboratory For Clean Energy (DNL) Cooperation Fund, Chinese Academy of Sciences (DNL 201913), International Partnership Program of Chinese Academy of Sciences (121421KYSB20190025) and the DICP foundation of innovative research (DICP I201927). F. Zhang thanks the support from Liaoning Revitalization Talents Program (XLYC1807241).

Interest statement

The authors declare that they have no conflict of interest.


The supporting information is available online at http://chem.scichina.com and http://link.springer.com/journal/11426. The supporting materials are published as submitted, without typesetting or editing. The responsibility for scientific accuracy and content remains entirely with the authors.


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  • Figure 1

    (a) An illustration on the preparation of Mo2N@CdS core-shell structures. (b) XRD patterns of the MoO3 hexagonal rods, Mo2N hexagonal rods, Mo2N@CdS and CdS samples. SEM images of the MoO3 hexagonal rods (c), Mo2N hexagonal rods (d) and Mo2N@CdS core-shell structures (e) (color online).

  • Figure 2

    Comparison of the photocatalytic H2 evolution performance on typical samples. (a) Time courses of H2 evolution; (b) the average H2 generation rate. Reaction conditions: 20 mg CdS; 100 mL, 10 vol% lactic acid aqueous solution; 300 W xenon lamp (λ³420 nm); reaction time: 5 h (color online).

  • Figure 3

    The charge separation performance of the typical three samples. (a) Steady PL spectra; (b) TRPL decay spectra; (c) transient photocurrent responses recorded at the potential of 0.9 V vs. RHE in 0.5 M Na2S and 0.5 M Na2SO3; (d) Nyquist plots tested at 0.9 V vs. RHE; frequency: 0.1 Hz–10 kHz (color online).

  • Figure 4

    The performances of surface catalysis and light absorption of the Mo2N@CdS. (a) Current density curves as a function of the applied potential of the CdS, Mo2N rod and CdS/Mo2N-rod samples; (b) high-resolution XPS spectra of Mo 3d for Mo2N rods and Mo2N@CdS samples; (c) UV-Vis transmittance spectra of CdS films on FTO (color online).


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