Herein we present the fabrication of surfaces and filters modified with poly-N-vinyl carbazole (PVK)-graphene based nanomaterial and related composites with antibacterial and heavy metal removal properties. Specifically, filter membranes (cellulose nitrate, polyvinylidine fluoride (PVDF), nylon, polycarbonate, cellulose, poly-tetrafluoroethylene (PTFE), ceramic filters, and glass fiber) were modified with PVK-graphene oxide (GO) and PVK-GO-ethylenediamine tetraacetic acid (EDTA) nanocomposites and then evaluated for its antibacterial and heavy metal removal properties. Antibacterial measurements (plate count assay, DNA measurements, live-dead assay) of the modified nanocomposite filters (PVK-GO-EDTA, PVK-GO) resulted into high bacterial toxicity and bacterial removal capacity against E. coli and B. subtilis. In addition, PVK-GO-EDTAmodified filter membranes showed metal chellating ability as observed by the enhanced removal of heavy metals (Pb, Cu, As, Zn, and Cr) on metal treated water samples. Other polymers of the same function as PVK on GO can serve the same function, in which the polymers enables better dispersions of GO or any Carbon allotrope to enable deposition on various surfaces and membranes. The applications of such surfaces, films, and filters are for filtration, separation, chelation, capture, and remediation of ions with simultaneous anti-microbial properties.