Water, Air, and Soil Pollution, cilt.235, sa.7, 2024 (SCI-Expanded)
Water is an indispensable resource for life on Earth, with its importance being highlighted by the vast range of applications that require it. Advanced oxidation techniques, well-known for their ability to generate hydroxyl radicals, have proven successful in treating water and wastewater. When different advanced oxidation processes are combined, a synergistic impact is shown, such as reduced chemical consumption or a more rapid reaction than with the processes alone. For this reason, hybrid processes in which different processes are applied together are called synergistic advanced oxidation processes. However, the use of these processes is limited by chemical and energy requirements. Currently, green synthesis is an emerging process for producing chemicals and materials in a more environmentally friendly way. It involves the use of various chemical treatments and reagents to remove organic and heterogeneous materials, while producing nontoxic, eco-friendly byproducts. Green synthesis has been used for a variety of purposes, such as gas absorption, water splitting, catalytic uses, sensors, and renewable energy. Heterogeneous catalysts have been identified as the strongest candidate for use in industry because of their functionalized structures, thermal stability, and well-defined surfaces. They also have suitably sized active sites for carrying out different chemical reactions. In this review, the focus is on heterogeneous catalysts, metal oxides, double-layered hydroxides, perovskites, metal organic frameworks (MOFs) and graphene. Furthermore, the various advantages and disadvantages of Fenton process catalysts fabrication methods have been discussed with an emphasis on green synthesis, are discussed in detail.