“…Dyes are organic compounds that can color fibers or other substances and are widely used in various industries. − However, most dyes are highly toxic and are difficult to biodegrade. Therefore, the removal of dyes in industrial wastewater is one of the important research contents in the field of environmental protection. , The most commonly used method to treat dye wastewater is adsorption. − However, traditional adsorbents, such as activated carbon − and resins, , have problems such as difficult elution, loss of adsorbents, and high energy consumption when adsorbing dyes, which fail to achieve harmless treatment of dye wastewater. At present, there are many types of dyestuffs in common use, among which the anionic dyestuffs are the most widely used because of their rich variety, complete color, and good dyeing effect. , Therefore, the development of adsorbents to remove anionic dyestuffs in water has a wide range of application value and prospects.…”