Preparation of Ag/TiO2-zeolite adsorbents, their desulfurization performance, and benzothiophene adsorption isotherms
- Authors: Song H.1,2, Yang G.1, Song H.3, Wang D.1,4, Wang X.1,2
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Affiliations:
- College of Chemistry and Chemical Engineering
- Provincial Key Laboratory of Oil and Gas Chemical Technology, College of Chemistry and Chemical Engineering
- Key Laboratory of Cancer Prevention and Treatment of Heilongjiang Province
- CPE Survey and Design Institute of Xinjiang Oil
- Issue: Vol 91, No 2 (2017)
- Pages: 390-397
- Section: Physical Chemistry of Surface Phenomena
- URL: https://journals.rcsi.science/0036-0244/article/view/169293
- DOI: https://doi.org/10.1134/S0036024417020121
- ID: 169293
Cite item
Abstract
A series of Ag/TiO2-NaY (TY) composite adsorbents were successfully prepared and characterized by X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, BET, scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS) techniques. The effects of TiO2 and Ag contents on the structure and desulfurization performance of NaY zeolite were studied. The results show that anatase phase is the main form of TiO2 in AgTY adsorbent, and the Y-zeolite framework remained unchanged. AgTY with 6 wt % of Ag and 50 wt % of TiO2 exhibited the best desulfurization performance with the effluent volume of 63.2 mL/g at 10 mg/L sulfur breakthrough level (desulfurization rate of 95%). The benzothiophene (BT) removal performance of the various adsorbents follows the order: NaY < TiO2 < TY-50 < AgTY-50-6. The equilibrium data were modeled by Langmuir and Freundlich equations. The Langmuir model can describe well the adsorption isotherms of BT over AgTY.
Keywords
About the authors
Hua Song
College of Chemistry and Chemical Engineering; Provincial Key Laboratory of Oil and Gas Chemical Technology, College of Chemistry and Chemical Engineering
Author for correspondence.
Email: songhua2004@sina.com
China, Daqing, 163318; Daqing, 163318
Gang Yang
College of Chemistry and Chemical Engineering
Email: songhua2004@sina.com
China, Daqing, 163318
Hua-Lin Song
Key Laboratory of Cancer Prevention and Treatment of Heilongjiang Province
Email: songhua2004@sina.com
China, Mudanjiang, 157011
Deng Wang
College of Chemistry and Chemical Engineering; CPE Survey and Design Institute of Xinjiang Oil
Email: songhua2004@sina.com
China, Daqing, 163318; Karamay, 834000
Xue-Qin Wang
College of Chemistry and Chemical Engineering; Provincial Key Laboratory of Oil and Gas Chemical Technology, College of Chemistry and Chemical Engineering
Email: songhua2004@sina.com
China, Daqing, 163318; Daqing, 163318