<p>The development of cobalt ferrite/graphitic carbon nitride nanocatalysts (CoFe₂O₄\g-C₃N₄ NCs) with a silicon component demonstrates an innovative approach to combined environmental SOx remediation and rapid synthesis of sulfamic acid derivatives. The CoFe₂O₄\g-C₃N₄/Si NCs produced had a narrow bandgap and a high specific surface area compared to individual components. By using nitroacetanilide derivatives, water, and, hydrogen peroxide, the NCs act as extremely effective photocatalysts for the SOx removal from flue gas under exposure to visible light at room temperature to produce aromatic sulfamic acids in high yields (96-99%). By taking advantage of the interaction between released SOx and p-nitroacetanilide derivatives, this method accomplishes simultaneous chemical desulfurization and significantly shields the nanocatalyst from sulfur poisoning. A substantial opportunity for the quick, continuous flow synthesis and detection of pharmacophore building blocks is also highlighted by this work, which also presents a sustainable, poison-resistant platform for air pollution control.</p>