Application of titanium phosphate prepared from acidic titanium dioxide wastewater to remove cerium (III) in aqueous solution

Titanium phosphate was prepared from acidic titanium dioxide wastewater, and its adsorption behavior for cerium (III) was studied. The experimental results of XRD, XRF, SEM, EDS, BET, FT-IR showed that the prepared titanium phosphate had an amorphous structure and excellent specific surface area. The adsorption process of cerium was in accordance with Langmuir isotherm model and Pseudo-first-order kinetic model. When the temperature was 298 K, the maximum adsorption capacity reached 158 mg/g. At the same time, the adsorption process was spontaneous, endothermic and selective. Coordination was the main cause of adsorption, electrostatic adsorption and intraparticle diffusion also played a role. Titanium phosphate was a promising adsorbent with good adsorption stability and reusability.