Graphite phase carbon nitride photocatalyst with controllable size and preparation method thereof

• Main Authors: WANG WENJIE, GUO LIPING, WANG XUEPENG, WANG SHIJIE, ZHOU WEI, LI ZHENZI
• Format: Patent
• Language: Chinese; English
• Published: 28.04.2023
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COMPOUNDS THEREOF; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention relates to a size-controllable graphite phase carbon nitride photocatalyst and a preparation method thereof, and belongs to the technical field of material preparation and photocatalysis. The preparation method comprises the following specific steps: S1, carrying out thermal polymerization on an organic compound precursor to obtain original g-C3N4; s2, uniformly mixing the original g-C3N4 and a solvent, carrying out hydrothermal reaction, and separating and purifying to obtain a mixture of graphite-phase carbon nitride photocatalysts with various sizes. According to the technical scheme, different sizes of graphite phase carbon nitride oligomers containing heptazine ring structures can be prepared as required, and the graphite phase carbon nitride photocatalyst containing the heptazine ring structure is finally prepared by selecting proper polymeric monomers, solvents, reaction temperature and reaction time and through cooperation of process parameters. The graphite-phase carbon nitride photocat