首页|Rational design of 2D ultrathin BiO(HCOO)_xI_(1-x) composite nanosheets: The synergistic effect of ultrathin structure and hybridization in the effective elimination of BPA under visible light irradiation
Rational design of 2D ultrathin BiO(HCOO)_xI_(1-x) composite nanosheets: The synergistic effect of ultrathin structure and hybridization in the effective elimination of BPA under visible light irradiation
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NSTL
Here, a novel series of 2D BiO(HCOO)_xI_(1-x) composites were first fabricated with a ultrathin thickness (~2.47 nm). Among them, the optimal BiO(HCOO)_(0.75)I_(0.25) nanosheets exhibited a superior photocatalytic performance with the kinetic constant reaching up to 0.2148 min~(-1), which was 5.9, 97.6 and 27.2 folds higher man that of pristine BiOI, BiOCOOH and BiO(HCOO)_(0.75)I_(0.75)-P nanoplates, respectively. Benefiting from the synergistic effect of ultrathin two-dimensional structure and hybrid composite, the photocatalytic performance was signally improved. Based on the optical and photoelectrochemical characterizations, the fabrication of hybrid composite delivered the optimal balance of visible-light absorption and redox capacity, endowing the photoinduced holes a higher oxidation potential. Meanwhile, the construction of 2D ultrathin structure reduced the migration distance of charge carriers, consequently accelerated those separated rate. This study provides a new insight for designing high active Bi-based photocatalysts, which is hopeful to make a great contribution to aquatic environmental restoration.
NSTL
