Technology and Research Information System

Pharmaceutical compounds and personal care products (PPCPs) are emerging micropollutants that have been identified in various water sources in recent decades due to advances in device analysis and due to their dangerous side effects on human health and wildlife. , Have been considered by environmentalists.

Acetaminophen (ACT), or paracetamol with the chemical formula C8H9NO2, is a resistant organic pollutant and is widely used worldwide as a pain reliever, antipyretic, and anti-inflammatory drug, as it is an OTC free drug. So that about 1.45 * 105 tons of it enters the environment annually.

According to studies, advanced oxidation processes (AOPs) act as powerful technologies for the decomposition of toxic organic pollutants into harmless mineral salts, carbon dioxide and water. In recent years, AOs based on SO4 sulfate radicals (SR-AOPs) have received much attention due to their high potential for degradation of emerging pollutants. Among the activation methods Sulfate radicals are more cost-effective, carbon-based activation, more environmentally friendly, and have higher physicochemical capabilities.

Among the carbon-based structures is the graphite carbon nitride nanocomposite (g-C3N4). However, various factors, including low surface area and lack of cavities, reduce the efficiency of g-C3N4; Also, the establishment of centers for electron trapping and low quantum efficiency due to the rapid introduction of rearrangement processes for the electron-hole pair is effective in reducing the efficiency of g-C3N4. Therefore, you should modify these compounds in different ways and improve their efficiency. One of the best ways to modify these compounds is to functionalize them with suitable metals. Research has shown that Cu acts as an efficient catalyst; G-C3N4 is also able to combine with Fe (II) and Fe (III). The use of advanced oxidation processes in combination with synthetic carbon nitride nanoparticles metalized with iron and copper proposes a new approach to reducing organic charge and degrading emerging contaminants. According to the above, the aim of this study was to synthesize g-C3N4 / CU and g-C3N4 / Fe nanocomposites in order to evaluate its activation of persulfate as an oxidant and the removal of acetaminophen as an example of emerging contaminants.