دورية
A liquid phase deposited porous flower-like HNaV6O16⋅4H2O film developed for a novel adsorbent to remove Pb2+, Cu2+, Mn2+and Cd2+
| العنوان: | A liquid phase deposited porous flower-like HNaV6O16⋅4H2O film developed for a novel adsorbent to remove Pb2+, Cu2+, Mn2+and Cd2+ |
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| المؤلفون: | Xu, Hai Yan, Yang, Yi Cai, Li, Dong Cai, Wu, Ran Ran, Wang, Ai Guo, Sun, Dao Sheng, Zhang, Feng Jun, Oh, Won-Chun |
| المصدر: | Journal of the Korean Ceramic Society; May 2023, Vol. 60 Issue: 3 p474-487, 14p |
| مستخلص: | Heavy metal ion pollution of water resources is becoming increasingly serious, and adsorption is one of the most effective strategies for removing heavy metal ions. In the paper, hydrated hydrogen sodium vanadium oxide (HNaV6O16⋅4H2O) film developed for heavy metal ion adsorption was prepared directly via a low-temperature liquid-phase deposition approach. The prepared film shows an interesting porous flower-like morphology and has large spacing (d= 10.87 Å). The highest adsorption capacity of the obtained HNaV6O16⋅4H2O film for Pb2+, Cu2+, Cd2+and Mn2+is 513 mg/g (2565 mg/m2), 430 mg/g (2150 mg/m2), 134 mg/g (875 mg/m2) and 175 mg/g (670 mg/m2), respectively. The adsorption percentage of the sample decreased from 92.2 to 86.3% after 4 cycles. The adsorption process follows the Langmuir adsorption isotherm and the pseudo second-order dynamic model, indicating that heavy metal ion adsorption by the film is a single molecular layer chemical adsorption. In combination with various characterizations and comparison tests of samples after adsorption, the adsorption mechanisms include surface electrostatic attraction, complexation, and cation exchange. The results indicate that the film is a potential material to remove heavy metal ions from the aqueous solution. |
| قاعدة البيانات: | Supplemental Index |
Find this article in full text from Springer Verlag. | تدمد: | 12297801 22340491 |
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| DOI: | 10.1007/s43207-022-00224-x |