| abstract |
The invention provides a graphite-like carbon nitride-(110) crystal plane bismuth vanadate Z-type heterojunction photocatalyst and a preparation method and application thereof, comprising the following steps: Step 1, preparing exposed (010) crystal plane BiVO 4 powder to prepare H 2 SO 4 modified g-C 3 N 4 powder; Step 2, add the exposed (010) crystal plane BiVO 4 powder to water and irradiate with UV light; dissolve the modified g-C 3 N 4 powder In water, carry out ultraviolet illumination; Step 3, add the BiVO 4 solution of ultraviolet light treatment to the negatively charged g-C 3 N 4 solution of ultraviolet light to obtain a precursor solution, and carry out ultraviolet illumination to the precursor solution to obtain g-C 3 N 4- ( 110) Crystal plane BiVO 4 Z-type heterojunction photocatalyst powder. The catalyst of the invention increases the response range of visible light, delays the recombination rate of electron and hole pairs, improves the separation efficiency of carriers, and improves the photocatalytic performance of the BiVO 4 -based composite photocatalyst. |