Synthesis method of chromium ion doped tungsten oxide complete photolysis water catalyst flat reactor

The invention discloses a synthesis method of a chromium ion doped tungsten oxide complete photolysis water catalyst flat plate reactor, which comprises the following steps: 1, fully dissolving sodium tungstate and chromium acetate in water, and mixing with glacial acetic acid to obtain a reaction solution, with the volume ratio of water to glacial acetic acid being 1: 1, the concentrations of the sodium tungstate, the chromium acetate, the citric acid or the trisodium citrate are 0.01-1 mol L1, 1 * 10 < 3 >-0.4 mol L1 and 0-2 mol L1 respectively, and the molar ratio of the sodium tungstate to the chromium acetate to the citric acid or the trisodium citrate in the solution is kept to be 1: (0.1-0.4): (0-2), and then the solution is transferred to a stainless steel autoclave reactor with a polytetrafluoroethylene lining. According to the synthesis method, the activity (solar energy-hydrogen (STH) conversion efficiency value is 4.3%-6.1%) of the complete photolysis water catalyst is remarkably improved, the ser