Hybridizing engineering strategy of non-lacunary (nBu4N)4W10O32 by carbon quantum dot with remarkably enhanced visible-light-catalytic oxidation performance

This paper discloses an efficient strategy for the preparation of carbon quantum dot - hybridized4W10O32

Anqun Su; Mengke Chen; Zaihui Fu; Bo Yang; Jialuo She; Feifei Wan; Chao Zhang; Yachun Liu

2019

Scholarcy highlights

  • This paper discloses an efficient strategy for the preparation of carbon quantum dot- hybridized4W10O32
  • A key step in this strategy is to hydrothermally treat CQD with TBABr solution to form the TBA+ micelle-encapsulated CQD, which acts as a cationized hybridizer to combine with the W10O324− anion to yield the target catalyst
  • XPS, UV–vis, PL and CV characterizations indicated that CQD hybridizer plays unique roles in improving the structural stability, redox capacity and visible light response of TBADT, especially in enhancing the stability of its photo-excited state
  • 21.7% conversion and 84.8% cyclohexanone selectivity in cyclohexane photo-oxidation, the additive 2 M HCl further enhances the above hybridization effects, thereby significantly promoting the current photo-catalytic oxidations

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