Preparation of TiO2-Supported Activated Carbon and its Application in Papermaking Wastewater

Activated carbon supported nanoTiO2 photocatalyst material (TiO2/AC) was prepared with activated carbon (AC) as the carrier and sodium carboxyl methyl cellulose (CMC) as the binder. And the TiO2/AC was characterized by XRD. Then, the optimal experimental conditions was studied and the removal percentage of CODCr from papermaking wastewater could reach 73.22% at the optimal conditions. And the CODCr of the effluent was 90 mg/L, meeting the requirements of China national discharge standard. Furthermore, the recycle experiments showed that the TiO2/AC had a relatively high catalytic activity and stability.