التفاصيل البيبلوغرافية
| العنوان: |
Efficient removal of phosphate through adsorption by acidified diatomite loaded with La2O2CO3. |
| المؤلفون: |
Tian, Rui, Yang, Shu, Han, Ziyin, Sun, Ye, Wang, Yexi, Wu, Chen, Zhang, Qi, Liu, Jinyan, Lu, Xulin, Zhang, Zhiwei |
| المصدر: |
New Journal of Chemistry; 8/28/2023, Vol. 47 Issue 32, p15201-15208, 8p |
| مصطلحات موضوعية: |
PHOSPHATE removal (Water purification), DIATOMACEOUS earth, PHOSPHATES, ADSORPTION kinetics, CHEMICAL bonds, ADSORPTION (Chemistry), ADSORPTION isotherms |
| مستخلص: |
Phosphorus removal from wastewater is vital to mitigate the eutrophication of receiving waters. In this work, acidified diatomite (AD) was loaded with lanthanum carbonate (La2O2CO3) by a solvothermal method to prepare a series of composites, La2O2CO3@AD, which were used to adsorb phosphate. The La2O2CO3@AD materials have ordered structures and rich functional groups as verified by X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, energy spectrum analysis (EDS), and scanning electron microscopy (SEM). Then, all La2O2CO3@AD were used as adsorbents for fast and efficient removal of phosphate from aqueous solution by batch equilibrium experiments. The experimental results demonstrate that the phosphate adsorption of La2O2CO3@AD is pH dependent, and completed within 360 min. The adsorption kinetics and isotherm data follow the pseudo-second-order equation and the Freundlich model, respectively. The adsorption mechanisms of phosphate are ascribed to the chemical bond force and ligand exchange. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
