Repository of Research and Investigative Information

Repository of Research and Investigative Information

Ilam University of Medical Sciences

Preparation of a sepiolite/Cu-BDC nanocomposite and its application as an adsorbent in respirator cartridges for H2S removal

Sat Oct 1 18:46:52 2022

(2019) Preparation of a sepiolite/Cu-BDC nanocomposite and its application as an adsorbent in respirator cartridges for H2S removal. New Journal of Chemistry. pp. 11575-11584. ISSN 1144-0546

Full text not available from this repository.

Official URL: http://apps.webofknowledge.com/InboundService.do?F...

Abstract

A newly developed Cu-BDC MOF nanocomposite based on natural sepiolite (Sep) was prepared and characterized using XRD, SEM, EDS, BET, and FTIR techniques. The surface areas of the sepiolite and the Sep/Cu-BDC nanocomposite were obtained as 105.5 m(2) g(-1) and 270.5 m(2) g(-1) with average micropore volumes of 0.39 and 0.32 cm(3) g(-1), respectively. The Sep/Cu-BDC nanocomposite was prepared from the Cu-BDC metal-organic framework with values of 10, 25, and 40 by weight. The synthesized nanocomposite was tested to estimate the adsorption capacity and breakthrough time under various temperature, humidity, and concentration conditions using a designed setup. The aeroqual S500 direct-reading sensor with 0.01 ppm accuracy was used to measure the exact amount of hydrogen sulfide gas (H2S). The produced Sep/Cu-BDC nanocomposites had an extremely high adsorption capacity compared to the primary sepiolite. Among the different adsorbents, the Sep/Cu-BDC (25 wt) nanocomposite exhibited the highest adsorption capacity of 55.13 mg g(-1) (SD = 0.70) and breakthrough time of 46.32 min (SD = 1.53), respectively. Also, the amount of adsorption and breakthrough time of H2S were decreased with increasing moisture and concentration. The pressure drop was also increased slightly. The nanocomposite with 40 wt of Cu-BDC showed a significant decrease in the adsorption capacity and breakthrough time of H2S. The Sep/Cu-BDC adsorbent was regenerated using thermal regeneration at 190 degrees C in N-2 flow for 4 h, and the results showed that the adsorbent could be used for three consecutive cycles exhibiting excellent recyclability and thermal stability.

Item Type: Article
Creators:
CreatorsEmail
Kakaei, H.UNSPECIFIED
Beygzadeh, M.UNSPECIFIED
Golbabaei, F.UNSPECIFIED
Ganjali, M. R.UNSPECIFIED
Jahangiri, M.UNSPECIFIED
Shahtaheri, S. J.UNSPECIFIED
Keywords: metal-organic frameworks hydrogen-sulfide adsorption activated carbon performance mof nanoparticles composites capacity water co2 Chemistry
Divisions:
Page Range: pp. 11575-11584
Journal or Publication Title: New Journal of Chemistry
Journal Index: ISI
Volume: 43
Number: 29
Identification Number: https://doi.org/10.1039/c9nj01623f
ISSN: 1144-0546
Depositing User: مهندس مهدی شریفی
URI: http://eprints.medilam.ac.ir/id/eprint/2359

Actions (login required)

View Item View Item