Molybdenum disulfide/iron molybdate composite catalyst as well as preparation method and application thereof

The invention provides a molybdenum disulfide/iron molybdate composite catalyst and a preparation method and application thereof.The preparation method comprises the following steps that ferric chloride hexahydrate and terephthalic acid are added into dimethylformamide, magnetic stirring is conducted to be uniform, the mixture is transferred into a hydrothermal kettle to be subjected to a hydrothermal reaction, washing, centrifuging and drying are conducted in sequence after cooling, and MIL-53 (Fe) powder is obtained; the preparation method comprises the following steps: adding MIL-53 (Fe) powder into ultrapure water, stirring, adding ammonium molybdate tetrahydrate and thiourea, carrying out ultrasonic dispersion, transferring into a hydrothermal kettle, carrying out a hydrothermal reaction, cooling, and sequentially washing, centrifuging and drying to obtain the molybdenum disulfide/iron molybdate composite catalyst. The invention also provides the composite catalyst prepared by the method and application