Environmental pollutants emanated from industrialization and anthropogenic activities have become a matter of great concern nowadays due to their persistent nature that adversely affects water, soil, and air. The treatment of these pollutants by using conventional methods is challenging and, therefore, various sustainable alternatives are being explored. Bimetallic nanoparticles represent one such alternative because of synergistic effects among metals and higher catalytic activity, stability, and selectivity. Green synthesis, using agricultural waste as reducing and capping agents, has shown to be a proficient and cost-effective approach for nanoparticles’ production. Agricultural waste is a potential source of phytochemicals, including polyphenolics, flavonoids, proteins, terpenes, and sugars. These phytoconstituents present in plant waste can be effectively utilized for the synthesis of bimetallic nanoparticles. The present review focuses on agro-waste-derived bimetallic nanoparticles, including the mechanism of their synthesis, and factors affecting their physicochemical properties. The article discusses how agricultural waste plays a key role in the green synthesis process. The review includes information about the application of agro-waste-derived bimetallic nanoparticles (AW-bimetallic NPs) for remediation of organic dyes, heavy metals, and other pollutants. Current research trends, challenges and future prospects of using agricultural waste in bimetallic nanoparticle synthesis are also discussed.
