Читать книгу Functionalized Nanomaterials for Catalytic Application - Группа авторов - Страница 24

Hydrothermally synthesized BWO fixed as ultrathin Bi₂WO₆ NSs embedded on g-C₃N₄ QDs as (CNQDs/BWO), belonging to Z-scheme, efficiently degraded organic contaminants of antibiotic TC and dye Rh B, with % efficacy of 92.51 and 87 in NIR and visible regions, in ~1 h. Langmuir-Hinshelwood model adopted by the authors Zhang, M. et al. later showed that the bandgap energy of 2.70 eV (BWO) and 2.60 eV (CNQDs) was sufficient to bring the change [168]. The authors Zhou, L. et al., proved that GCNQD-treasured on modified g-C₃N₄ had a worthy photocatalytic degrading activity against organic Rh B [169]. The experimentalists Lin, X. et al. observed that hydrothermally synthesized nano-heterostructures of CNQDs/InVO₄/BiVO₄ on a leaf-like material of InVO₄/BiVO₄ had ^·O²⁻ radical as the main force behind the efficient oxidative-degradation of Rh B organic dye [170].

Similarly, heterostructure GCNQDs/Ag/Bi₂MoO₆ NSs had a very good 100% degrading capability of Rh B in visible region, where h⁺ of VB (Bi₂MoO₆) and e⁻ of CB (CNQDs) worked effectively for oxidation/reduction to cause degrading reaction to give H₂O and CO₂ [171]. Si NWs (silicon nano-wires) on g-C₃N₄ QDs as Si NWs @ g-CNQDs, photoelectrocatalytically could decompose 85.1% of 4-CP in ~ 2 h from aqueous solution, had a notable charge separation and good stability [172]. π-conjugated GCNQDs implanted on metalloid sulfide Sb₂S₃/supported by ultrathin-g-C₃N₄, with a bandgap of 2.7 eV, were proved to be good candidate for photocatalytic disposals of MO from unwanted water and had a very good electron (e⁻) transference [173]. In a novel approach, the co-workers Patel, J. et al. synthesized Mn:ZnS/QDs, for photo-degrading fluoroquinolone: Norfloxacin in an ambient condition of solar-light/UV-light, where Mn and ^·OH fortified the reaction to 4 reapplied cycles [174].