Review—Bi-Metallic Nanoparticles for Water Treatment: Synthesis Routes, Purification, Challenges and Future Perspectives

Abstract

Bimetallic nanoparticles have attracted huge attention because they exhibit more efficient characteristics due to the extensive array of chemical and physical properties, synergistic effects, and different mechanisms of action. This review highlights the synthetic routes for synthesis of different bimetallic nanoparticles such as physical, chemical, and biological routes and their use for the removal of pollutants from water such as heavy metals, metalloids, dyes, pharmaceuticals, bacteria’s etc. The study shows that bimetallic nanoparticles have been synthesized by various methods and used for the purification and application of water. It also is revealed that the bimetallic nanoparticles are efficient for removal of organic, inorganic, and biological pollutants from water. Furthermore, an up to date review of use of various bimetallic nanoparticles for water treatment is presented in the form of table and the future perspectives and challenges in the field are discussed in detail.