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Application of titanium phosphate prepared from acidic titanium dioxide wastewater to remove cerium (III) in aqueous solution
Colloids and Surfaces A: Physicochemical and Engineering Aspects ( IF 5.2 ) Pub Date : 2021-09-22 , DOI: 10.1016/j.colsurfa.2021.127613
Zhaowang Liu 1, 2 , Yali Feng 1 , Haoran Li 2
Affiliation  

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.



中文翻译:

酸性二氧化钛废水制备磷酸钛去除水溶液中铈(III)的应用

以酸性二氧化钛废水为原料制备磷酸钛,研究其对铈(III)的吸附行为。XRD、XRF、SEM、EDS、BET、FT-IR的实验结果表明所制备的磷酸钛具有无定形结构和优异的比表面积。铈的吸附过程符合Langmuir等温线模型和伪一级动力学模型。当温度为 298 K 时,最大吸附容量达到 158 mg/g。同时,吸附过程是自发的、吸热的和选择性的。配位是吸附的主要原因,静电吸附和颗粒内扩散也起作用。磷酸钛是一种很有前途的吸附剂,具有良好的吸附稳定性和可重复使用性。

更新日期:2021-10-02
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