Abstract
Photocatalysis is one of the versatile processes widely applied for the treatment of environmental water pollutant. In this work, NiS/Ag2MoO4 heterostructured nanocomposite (NCs) was synthesized via ultrasonication assisted and chemical co-precipitation methods. The prepared particle was characterized using HRTEM, SAED, EDAX, UV-vis DRS, XRD, nitrogen adsorption and desorption, PL, and XPS. The band gap of NCs was found to be 2.77 eV which facilitates the enhanced activity in visible region. The heterostructure formation between NiS and Ag2MoO4 have induced the separation of charges efficiently which caused the increase in photocatalytic performanc. The photocatalytic study reveals that NiS/Ag2MoO4 enhanced the degradation of MB (90.8%) relative to individual NiS and Ag2MoO4. The MB degradation followed pseudo first order reaction (R-2 < 0.955). The radical trapping experiment confirmed that the major species involved in photodegradation process were superoxide and hydroxyl radicals. The prepared photocatalyst was structurally stable and highly reusable as confirmed by cycles test. Also, the NCs showed excellent anti-bacterial property. The results confirmed the good potentiality of NCs to degrade the organic dye compounds and as a good anti-bacterial agent.