Silicon‐grafted Ag/AgX/rGO nanomaterials (X = Cl or Br) as dip‐photocatalysts for highly efficient p‐nitrophenol reduction and paracetamol production

• DOI: 10.1002/aoc.4757
• Publication Date: 2018-12-19T08:09:32Z
• Authors: Yasser A. Attia; Yasser M.A. Mohamed
• Keywords: 4-Nitrophenol; Nitrophenol; Selective catalytic reduction; Reducing agent; Nanomaterials

In this work, plasmonic Ag/AgX/rGO (X = Cl or Br) nano‐photocatalysts were grafted with silicon by adding trimethylsilyl chloride as precursor. The synthesized Ag/AgX/rGO‐Si hybrids showed a large improvement of photocatalytic activity towards the synthesis p‐aminophenol (PAP) well paracetamol (acetaminophen; APAP) through photoreduction p‐nitrophenol (PNP). prepared catalysts characterized using SEM, XRD, FTIR and reduction reaction was monitored UV–Vis measurements, GC/MS 1 HNMR data. From results, it demonstrated that rate order process PNP to PAP APAP under visible light irradiation samples follows; Ag/AgBr/rGO‐Si > Ag/AgCl/rGO‐Si Ag/AgBr/rGO Ag/AgCl/rGO. mechanism had been postulated supported spectroscopic addition, recovered from medium re‐used in three cycles indicated reusability stability catalysts. This study featured following; i) fast reaction, ii) performed facile one‐pot compared previous approaches tends reduce production cost, iii) investigations on catalytic properties organic transformations open door find benefice these other reactions development pharmaceutical products.