Low-Cost ceramic disk filters coated with Graphitic carbon nitride (g-C3N4) for drinking water disinfection and purification

Low-Cost Antibacterial Ceramic Water Filters for Decentralized Water Treatment: Advances and Practical Applications

“…The MCN-coated surface exhibits a rougher and denser texture compared to the original, untreated filter surface. In addition, the CWF with MCN also exhibits higher antibacterial photocatalytic activity compared to the pure ceramic filter …”

“…Another method that has been used to add additives to the CWF is drop-casting. The drop-casting method has been employed to immobilize modified graphitic carbon nitride (MCN) onto the filter surface . This method prepares a coating suspension by dispersing MCN in a mixture of water and ethanol (containing 25% ethanol).…”

“…In addition, the CWF with MCN also exhibits higher antibacterial photocatalytic activity compared to the pure ceramic filter. 52 The additive can also be introduced using an in situ synthesis method, as mentioned in the modification of CWF with Ca/Mg-phosphate. 50 Preparing the clay ceramic adsorbent materials involves introducing dolostone as a source of calcium and magnesium cations.…”

Graphitic carbon nitride-based nanostructures as emergent catalysts for carbon monoxide (CO) oxidation

“…Later, g-C 3 N 4 composites with metal/oxide nanoparticles (i.e., Au, Ag, Fe-SnO 2 , TiO 2 , ZnO) were used for drinking water sterilization to remove various organisms, namely, E. coli, Lactobacillus acidophilus, Saccharomyces cerevisiae, and Staphylococcus aureus. 56,[61][62][63][64][65][66] This is based on the surface plasmon resonance properties and generation of reactive oxygen species in addition to the electron-hole oxidation process. Recently, g-C 3 N 4 doped and modified with ZnO/K-CN x nanocomposites was used for the photocatalytic degradation (90%) and adsorption (50%) of tetracycline from water with great durability and reusability, thus implying the feasibility of the application of ZnO/K-CN x as sustainable green materials for removing environmental water pollution.…”

Metal-free photocatalysts for solar-driven water disinfection: recent progress and challenges

“…Besides polymer substrates, ceramic disc filters were also applied as the membrane to obtain a low-cost, safe, and reliable water disinfection device to purify drinking water for remote areas. 167 Moreover, Li et al designed a suspension reactor, with the O-g-C 3 N 4 /HTCC photocatalyst suspended in the feed solution and a downstream PVDF flat-sheet microfiltration membrane separation unit (Fig. 9B).…”