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We reported a facile fabrication of Bi2O3/carbon quantum dots (CQDs) photocatalysts. All the synthesized samples were characterized and investigated. Firstly, irregular β-Bi2O3 nanosheets were obtained by a thermal treatment of Bi2O2CO3 precursor at 350°C for 3h in air. Then, different contents of CQDs were incorporated onto the as-obtained β-Bi2O3 nanosheets in ethanol solution by vigorous stirring...