Sintesis Metal-Doped Carbon Nitride Nanosheets sebagai Pengurai Limbah Pewarna secara Fotokatalisis

Batik dye waste pollutes the Bengawan Solo River in high levels. One of the effective efforts to overcome pollution in the aquatic environment is through a degradation process using photocatalysts with UV-rays. In this research, carbon nitride nanosheets as photocatalyst with zirconium and cobalt doping was used. The addition of doping on g-C3N4 nanosheets was able to improve the photocatalytic performance. The purpose of this study was to determine the effect of various types of doping on the photoremediation performance of carbon nitride nanosheets. Synthesize Co-doped g-C3N4 nanosheets and Zr-doped g-C3N4 nanosheets was carried out by synthesizing pure g-C3N4 nanosheets using melamine and ammonium sulfate that calcined at 600°C. Afterwards, the mixture was impregnated by Zr and Co-doped using a vacuum evaporator. The effectiveness of the photocatalyst to degrading rhodamine-B was analyzed using X-Ray Diffraction (XRD) and UV-Visible Spectrophotometer. The result shows that photodegradation performance of Co and Zr-doped g-C3N4 nanosheets has increased. Based on the absorbance data of photocatalysts, the Zr-doped g-C3N4 nanosheets photocatalyst give the most optimal results in degrading rhodamine-B with the final rhodamine-B concentration close to zero.