2023
DOI: 10.51316/jca.2023.044
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Study on the ability to treat methylene blue in water and textile dyeing wastewater from sedge mats of the ZnAlCO<sub>3</sub> hydrotalcite modified by Cu<sup>2+</sup> ion under visible light

Vu Van Nhuong,
Nguyen Thi To Loan,
Do Tra Huong

Abstract: Hydrotalcite ZnAlCO3 and modified hydrotalcite CuZnAlCO3 were synthesized by a co-precipitation method from nitrate salts of Al, Zn and Cu as precursors. Using Na2CO3 salt to provide CO32- interlayer ion and NaOH 2N solution to adjust the pH of the reaction mixture to pH = 9.5. The obtained samples were characterized by physical analysis methods: XRD, EDX, SEM image, BET, UV-Vis DRS. The characterization results showed that the two synthesized samples H and 3CuH (molar ratio of Zn:Al and Cu:Zn:Al are 7:3 and 3… Show more

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