WS2/ZnIn2S4 composite visible light catalyst and preparation method thereof

• Main Authors: CHEN DA, SUN XINGGUO, QIN LAISHUN, HUANG YUEXIANG, ZHOU JIABO
• Format: Patent
• Language: Chinese; English
• Published: 04.09.2018
• Subjects: APPARATUS THEREFOR; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTIONOF COMPOUNDS OR NON-METALS; METALLURGY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention belongs to the technical field of semiconductor photocatalysis, and particularly relates to a WS2/ZnIn2S4 composite visible light catalyst and a preparation method thereof. The inventionprovides a WS2/ZnIn2S4 composite visible light catalyst and a preparation method thereof. The preparation method is characterized in that a WS2 nano sheet used as a promoter is tightly combined withZnIn2S4 particles through a hydrothermal reaction, thereby forming the WS2/ZnIn2S4 composite visible light catalyst. Compared with a pure ZnIn2S4 photocatalyst, the prepared WS2/ZnIn2S4 composite visible light catalyst can effectively promote separation of photogenerated charges and reduce combination of photogenerated electrons and holes due to the formation of a semiconductor heterostructure, sothat the photocatalytic hydrogen production performance can be greatly improved. The WS2/ZnIn2S4 composite visible light catalyst and the preparation method thereof which are provided by the invention provide a new idea and a