Synthesis of TiO2-clay hybrid composites to reduce TDS levels of tofu industrial wastewater

In this study, TiO2-clay hybrid composites were synthesized using the sol gel method. The synthesis process was initiated by activating natural clay. In this synthesis process, TTIP solution was used as a precursor and activated natural clay. TiO2-clay hybrid composites were then applied to reduce TDS levels in tofu wastewater. As a result, it was found that TiO2-clay composite had the highest ability to reduce TDS levels in tofu industrial wastewater, namely 31.25%, for 5 days of use with a dose of 3 g for every 500 ml of tofu wastewater. Based on SEM-EDX and FTIR characterization data, it shows that the synthesis process has been successful by obtaining the presence of TiO2 in TiO2-clay hybrid composites. Meanwhile, the result of XRD characterization show that the TiO2 formed in the TiO2-clay composite is anatase TiO2.