TEA-assisted hydro-thermal synthesis of layered Zn hydroxide nitrate adsorbent and its rapid adsorption for MO

Zhang Minga Key Laboratory of Environment Functional Materials, Zhengzhou University of Aeronautics, Zhengzhou, P.R. China;b Henan Huibo Medical Co., Ltd, Nanyang, P.R. ChinaView further author information

Cui Jiehua Key Laboratory of Environment Functional Materials, Zhengzhou University of Aeronautics, Zhengzhou, P.R. China;c Henan Key Laboratory of Aeronautical Material and Application Technology, Zhengzhou University of Aeronautics, Zhengzhou, P.R. ChinaCorrespondence[email protected]
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Zhu Jiea Key Laboratory of Environment Functional Materials, Zhengzhou University of Aeronautics, Zhengzhou, P.R. ChinaView further author information

Ping Lia Key Laboratory of Environment Functional Materials, Zhengzhou University of Aeronautics, Zhengzhou, P.R. ChinaView further author information

Xiuhong Dud Department of Laboratory Medicine, Henan Medical College, Zhengzhou, P.R. ChinaView further author information

Chunguang Lia Key Laboratory of Environment Functional Materials, Zhengzhou University of Aeronautics, Zhengzhou, P.R. ChinaView further author information

Abstract

A novel layered Zn hydroxide nitrate adsorbent (LZH-NO₃) for rapid adsorption of MO was synthesized by TEA (triethanolamine)-assisted hydro-thermal synthesis technology and characterized by the SEM, XRD, FTIR, BET, solid-state UV/vis spectra and TG. The maximum adsorption capability was 529.3 mg/g. The adsorption process reached equilibrium rapidly only 10 min. The pseudo-second-order kinetic equation fitted the adsorption process. The equilibrium adsorption isotherm data followed the Langmuir model. The regeneration ability was achieved using 0.5% NaOH solution. The results showed that LZH-NO₃ could be employed as an efficient adsorbent for the removal of MO from dye waste water.

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This work was supported by the National Natural Science Foundation of China (21771165), Provincial Key Technologies R & D Program of Henan (192102310237, 172102310556) and the Key Program of the Henan universities and colleges (20B150031, 19A140018).

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TEA-assisted hydro-thermal synthesis of layered Zn hydroxide nitrate adsorbent and its rapid adsorption for MO

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TEA-assisted hydro-thermal synthesis of layered Zn hydroxide nitrate adsorbent and its rapid adsorption for MO

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