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Adsorption performance of CeO2@NS-HNbMoO6 for ethyl mercaptan in methane gas

Lifang Hu, Xianyun Zheng, Jichao Zhu, and Jie He

School of Chemical Engineering, Anhui University of Science and Technology, Huainan, China

 

E-mail: hulf@aust.edu.cn

Received: 24 September 2021  Accepted: 28 December 2021

Abstract:

Adsorption technology is an effective method to remove trace impurities sulfide in methane gas. Hydrogen bonding and metal–sulfur (M–S) coordination are important adsorption models. The CeO2@NS-HNbMoO6 composites are synthesized using the cerium species and the HNbMoO6 nanosheet with the abundant surface hydroxyl as the load and carrier. The properties of as-prepared samples are characterized by XRD, HRTEM, SEM, EDS, Raman, and XPS. It is found that CeO2 nanoparticles are evenly dispersed on the surface of NS-HNbMoO6, and the interaction between CeO2 and NS-HNbMoO6 is obvious. Results shows that the adsorption capacity of CeO2@NS-HNbMoO6 is 107.19 μmol g−1 which is significantly better than that of the NS–HNbMoO6 due to the combination of hydrogen bonding and Ce–S interaction. Hydrogen bond and M–S interaction have synergistic promoting effect on adsorption desulfurization.

Keywords: Adsorption; Hydrogen bonding; M-S interaction; Ethyl mercaptan; Methane gas

Full paper is available at www.springerlink.com.

DOI: 10.1007/s11696-021-02057-0

 

Chemical Papers 76 (4) 2495–2504 (2022)

Wednesday, April 24, 2024

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