随着现如今全球经济的快速发展以及制造行业发展，环境污染和能源紧缺问题成

With the rapid development of the global economy and the development of the manufacturing industry, environmental pollution and energy shortages have become problems that we need to face. In order to solve these problems, people have developed many catalysts, and various catalysts continue to appear. It is difficult to degrade pollutants under natural conditions. The MgIn2S4 photocatalyst was manufactured according to people's needs. It has a very broad application prospect in the degradation of organic pollutants. As an efficient and stable catalyst, it has become the focus of attention. This article will study its preparation and its application in the degradation of pollutant printing and dyeing wastewater. <br>The MgIn2S4 photocatalyst is prepared by hydrothermal method, adding magnesium chloride hexahydrate and indium tetrachloride chloride, and then adding thioacetamide. Magnetically stirred, collected by centrifugation, washed and dried with ethanol and water. Then it also studied and analyzed the degradation of MgIn2S4 photocatalysis in the treatment of organic pollutants orange G. By controlling the invariant, changing the concentration of the catalyst input and the initial concentration, the effect of the catalyst on the degradation rate of the pollutant was compared. Finally, according to various tests, it can be concluded that the treatment effect of MgIn2S4 photocatalyst is more satisfactory than traditional catalysts. <br><br>Keywords: photocatalyst; degradation rate; hydrothermal method; orange G

With the rapid development of the global economy and the development of the manufacturing industry, environmental pollution and energy shortage problems become the problems we need to face, in order to solve this kind of problem, people have studied a lot of catalysts, various catalysts continue to appear, but in natural conditions it is difficult to degrade pollutants, according to people's needs to create MgIn2S4 photocatalyst, it has a very broad application prospects for the degradation of organic pollutants, as an efficient and stable catalyst, become the focus of attention. This paper will study its preparation and the application of pollutant printing and dyeing wastewater degradation.<br>MgIn2S4 photocatalysts are prepared by hydrothermal system, with magnesium hetechloride and tetrachloride chloride added, and sulfur acetylamide added. Magnetic stirring, collected by centrifugation, rinsed and dried with ethanol and water. Then it also studies and analyzes the degradation of MgIn2S4 photocatalysis in the treatment of organic pollutant orange-yellow G, and compares the effect of catalyst on pollutant degradation rate by controlling invariable and changing the input concentration and initial concentration of the catalyst. Finally, according to various tests, it can be concluded that MgIn2S4 photocatalyst is more satisfactory than traditional catalyst treatment.<br><br>Keywords: photocatalyst; Degradation rate; hydrothermal method; orange G

With the rapid development of the global economy and the development of the manufacturing industry, environmental pollution and energy shortage have become the problems we need to face. In order to solve these problems, many catalysts have been developed, and various catalysts are constantly appearing, but it is difficult to degrade pollutants under natural conditions. According to people's needs, mgin2s4 photocatalyst is produced, which can degrade the pollutants As an efficient and stable catalyst, it has become the focus of attention. This paper will study its preparation and application in the degradation of pollutants in printing and dyeing wastewater.<br>Mgin2s4 photocatalyst was prepared by hydrothermal method. Magnesium chloride hexahydrate, indium tetrachloride and thioacetamide were added. Magnetic stirring, collecting by centrifugation, washing and drying with ethanol and water. Then, the degradation of organic pollutant Orange G by mgin2s4 photocatalysis was studied and analyzed. The effect of catalyst on the degradation rate of organic pollutant Orange G was compared by controlling invariants, changing the input concentration and initial concentration of catalyst. Finally, according to various tests, it can be concluded that mgin2s4 photocatalyst has better treatment effect than traditional catalyst.<br>Key words: photocatalyst; degradation rate; hydrothermal method; orange G<br>