| abstract |
The invention discloses a carbon-based sulfide composite photocatalyst, a preparation method and its application in degrading heavy metals. The preparation method includes the following steps: (1) adding a carbon source into a solvent, and reacting at 160-200° C. to obtain Cs; or further calcining the Cs to obtain calcined Cs; (2) calcining the Cs or the calcined Cs; Cs was added to absolute ethanol, tin and sulfur-containing compounds were added after ultrasonic mixing, and the reaction was carried out at 160-180 °C to obtain SnS 2 @Cs; (3) SnS 2 @Cs and PVP were added to water and stirred Mix uniformly, wash by centrifugation, then add the obtained intermediate product, aniline and green iron hexahydrate into water, and carry out the reaction at 0-1 DEG C in a dark environment to obtain a carbon-based sulfide composite photocatalyst. The composite photocatalyst prepared in the present invention has good redox effect and can be used for degrading heavy metals or dyes. |