A Review on Green Synthesis of Silver Nanoparticles Conjugated with Activated Charcoal to form Silver-Charcoal Nanocomposites and its Applications in Water Filter Membrane

The increasing interest to carbon and silver nanotechnology and its various applications nowadays caught the attention of many researchers. In this review, the types of plants used for green synthesis of silver nanoparticles and its antimicrobial activity against different types of infectious agents were cited. This challenge boosts the interest of researchers to promote a more eco-friendly way of synthesis of nanoparticles compared to the present ones that can also potentially used in various fields of its application. Occurrence, shape, morphology, and size of silver nanoparticles are also revealed with references. Applications and mechanism of silver nanoparticles in water filtration membranes are also highlighted with suitable references. As charcoal are considered as one of the significant filter types capable of arresting microbial metabolism from odour causing, many articles related to charcoal and its antibacterial mechanisms were reported in this review. Charcoal in water filtration units or in membranes were also described emphasizing the role of activated carbon or charcoal for preventing the growth of bacteria in water or potable water. As nanocomposites are gaining more attention in the membrane filter production industries, in this review, we focussed about the mechanism, synthesis, and application, including their advantages and disadvantages, of charcoal, silver, and silver+ charcoal nanocomposites. Keywords: Silver, green synthesis, nanoparticles, charcoal, silver+ charcoal nanocomposites