 Polyolefin plastics are widely used in modern society but generate large amounts of waste. Researchers have developed a photothermal catalytic recycling system which uses concentrated sunlight or xenon lamp irradiation to convert polyolefin plastics into liquid waxy fuels. This process involves heating a IU-T02 catalyst to 200 to 300 degrees Celsius, resulting in intimate catalyst-plastic contact and controlled hydrogenalysis of CC and CH bonds in the polymer chains. Optimized reaction conditions allow for complete conversion of waste polyolefins into valuable liquid fuels, gasoline and diesel-range hydrocarbons, C5, C21, within three hours. This method is simple and efficient, making it a promising solution for recycling polyolefin plastics with abundant solar energy. This article was offered by Yinxian Miao, Yinxian Jiao, Jeffrey I. N. Waterhouse, and others.