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Coprecipitation Preparation of CuZnAl-Hydrotalcite-Like Compound for Copper Removal from Electroplating Wastewater
Joint Authors
Bai, De-Kui
Ying, Quan-Hong
Wang, Ni
Wang, Xiaofang
Huo, Dongxia
Xia, Baixue
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-01-02
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Cu/Zn/Al-hydrotalcite-like compound (Cu/Zn/Al-HTlc) was prepared by the coprecipitation method with ZnII, AlIII cations solution, and electroplating wastewater containing CuII cation.
The preparation conditions of Cu/Zn/Al-HTlc were optimized.
The metal ion pollutants removal effect and iodide maximum adsorption capacity of Cu/Zn/Al-HTlc were also studied.
The physicochemical properties of the Cu/Zn/Al-HTlc were analyzed by X-ray diffraction, FTIR, SEM, N2 adsorption-desorption isotherms, and TG-DTG.
The results showed that Cu/Zn/Al-HTlc should be prepared with the ZnII-AlIII molar ratio of 1.5 : 1, pH = 11, and aged at room temperature for 0.5 d.
Structural analysis showed that the Cu/Zn/Al-HTlc was a layered compound.
CuII and other metal ion pollutants can also be successfully removed from electroplating wastewater in the preparation process of Cu/Zn/Al-HTlc and reached Chinese National Emission Standard (GB 21900-2008).
The optimal adsorption condition of calcinated Cu/Zn/Al-HTlc for iodide was as follows: the solid-liquid ratio was 1 : 250, the pH value was 8, and the adsorption process was carried out at 25°C for 30 min.
The saturated adsorption capacity reached 1000 mg·g−1 at the optimal adsorption condition.
The main reason for this high-saturated adsorption capacity of Cu/Zn/Al-HTlc was that iodide penetrated into the layered structure of Cu/Zn/Al-HTlc by physical adsorption and CuII undergoes a specific redox reaction, producing CuI.
Hence, coprecipitation synthetic technology and prepared Cu/Zn/Al-HTlc could be potentially used for electroplating wastewater treatment.
American Psychological Association (APA)
Bai, De-Kui& Wang, Xiaofang& Huo, Dongxia& Ying, Quan-Hong& Wang, Ni& Xia, Baixue. 2019. Coprecipitation Preparation of CuZnAl-Hydrotalcite-Like Compound for Copper Removal from Electroplating Wastewater. Journal of Chemistry،Vol. 2019, no. 2019, pp.1-9.
https://search.emarefa.net/detail/BIM-1171231
Modern Language Association (MLA)
Bai, De-Kui…[et al.]. Coprecipitation Preparation of CuZnAl-Hydrotalcite-Like Compound for Copper Removal from Electroplating Wastewater. Journal of Chemistry No. 2019 (2019), pp.1-9.
https://search.emarefa.net/detail/BIM-1171231
American Medical Association (AMA)
Bai, De-Kui& Wang, Xiaofang& Huo, Dongxia& Ying, Quan-Hong& Wang, Ni& Xia, Baixue. Coprecipitation Preparation of CuZnAl-Hydrotalcite-Like Compound for Copper Removal from Electroplating Wastewater. Journal of Chemistry. 2019. Vol. 2019, no. 2019, pp.1-9.
https://search.emarefa.net/detail/BIM-1171231
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1171231