Application of Pyrite and Its Modified Composite in Water Pollution Treatment

Due to its strong surface activity, precipitation adsorption, redox and relatively excellent photocatalytic properties, pyrite has been widely used to treat heavy metals, organic pollutants and various inorganic salts in the polluted water. However, some inherent defects of pyrite, such as small specific surface area, high susceptibility to agglomeration, etc. , limit its practical applications. Appropriate modification of pyrite via morphological adjustment, elemental doping, and material loading can improve the dispersion performance of particle size, expose more functional groups and increase electron transport rate to further modulate the related properties and enhance the wastewater treatment capacity of pyrite, In this article, we firstly introduce the basic information, the application and the mechanism of pyrite in wastewater treatment, and then describe the typical modification methods of pyrite and their corresponding strengthening mechanisms for treating wastewater. This article will provide a systematic introduction and outlook for the development of pyrite-based composite materials in the field of environmental treatment.