Bi 2 O 2 (OH)(NO 3 ) as a desirable [Bi 2 O 2 ] 2+ layered photocatalyst: strong intrinsic polarity, rational band structure and {001} active facets co-beneficial for robust photooxidation capability

Non-centrosymmetric polar Bi 2 O 2 (OH)(NO 3 ) with a rational band structure and {001} active exposing facets is developed as a robust layered photocatalyst for photooxidative diverse industrial contaminants and pharmaceuticals.