Bismuth Nanobowl/Bismuth Oxides, a Hybrid Material for Efficient Adsorption and Visible‐light‐driven Photodegradation of Organic Pollutants

Abstract To achieve the goal of efficient organic pollutants removal, bismuth nanobowl (Bi) /bismuth oxides was rationally designed and synthesized. In the Bi/bismuth oxides, BiOCl/Bi 2 O 2.33 was covered on the surface of Bi nanobowls after etching bowl‐shaped bismuth (previously prepared by solvothermal method with the addition of D‐Fructose) with hydrochloride acid solution. Compared to the one without etching, the obtained Bi/bismuth oxides nanobowls with enlarged surface area lead to remarkable enhancement in dye adsorption. The rhodamine B (RhB) adsorption behavior over the Bi/bismuth oxides samples all fitted pseudo‐second‐order model. Adsorption is a crucial previous step for photocatalysis. Due to the high adsorption capacity and the synergistic effect between surface oxides and plasmonic Bi, the Bi/bismuth oxides nanobowls exhibited high removal efficiency for organic pollutions under visible light irradiation.