Sodium Borohydride‐Assisted Catalytic Property of BiOCl Nanoparticles for Water Remediation

The fundamental metal oxyhalides' chemical catalytic property in converting 4‐nitrophenol to 4‐aminophenol was observed. The degradation efficiency for the most effective sample was about 100%, and the rate kinetics was 1.88 min‐1 within a 4‐minute interval. The transformation was performed at ambient temperature and in the aqueous sodium borohydride solution. Here we report an easy, cost‐effective, eco‐friendly hydrothermal synthesis of bismuth oxychloride (BiOCl) nanomaterials. In addition to the synthesis assertions, various sophisticated techniques have been used to investigate nanomaterials' optical and electronic properties. The tunability of band formation and phase equilibrium of nanomaterials and the relationship between nanomaterials and catalytic activity were examined. The synthesised nanomaterials were very valuable for wastewater remediation in the aquatic environment.