Electrical engineering

Bismuth vanadate

Bismuth

Solar energy

Photocatalysis

Heterojunction

Visible spectrum

Engineering

Catalysis

Inorganic chemistry

Chemistry

Metallurgy

Materials science

Vanadate

Black phosphorus

Water splitting

Optoelectronics

Biochemistry

Angewandte Chemie

Spontaneously solar‐driven water splitting to produce H 2 and O 2 , that is, the conversion of solar energy to chemical energy is a dream of mankind. However, it is difficult to make overall water splitting feasible without using any sacrificial agents and external bias. Drawing inspiration from nature, a new artificial Z‐scheme photocatalytic system has been designed herein based on the two‐dimensional (2D) heterostructure of black phosphorus (BP)/bismuth vanadate (BiVO 4 ). An effective charge separation makes possible the reduction and oxidation of water on BP and BiVO 4 , respectively. The optimum H 2 and O 2 production rates on BP/BiVO 4 were approximately 160 and 102 μmol g −1 h −1 under irradiation of light with a wavelength longer than 420 nm, without using any sacrificial agents or external bias.

Z‐Scheme Photocatalytic Water Splitting on a 2D Heterostructure of Black Phosphorus/Bismuth Vanadate Using Visible Light