Synthesis and characterization of nano magnesium oxide impregnated granular activated carbon composite for H2S removal applications

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F17%3A10425349" target="_blank" >RIV/00216208:11320/17:10425349 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=tViXuajy1S" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=tViXuajy1S</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.matdes.2017.09.034" target="_blank" >10.1016/j.matdes.2017.09.034</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Synthesis and characterization of nano magnesium oxide impregnated granular activated carbon composite for H2S removal applications

Popis výsledku v původním jazyce

In this study, a composite of nanomagnesium oxide (MgO) and granular activated carbon (GAC) was synthesized and analyzed for itsH(2)S adsorption capacity. The synthesis of composite involved a spray technique, which incorporates nano MgO even into micropores of GAC. The nanocomposite was characterized structurally and chemically, using scanning electron microscopy (SEM), X-ray diffraction (XRD), thermogravimetric analysis (TGA), N-2-BET adsorption studies, ultra-violet photoelectron spectroscopy (UPS) and near edge X-ray absorption fine structure spectroscopy (NEXAFS) and inductively coupled plasma optical emission spectroscopy (ICP-OES). The composite described herein showedmore than five times higher H2S adsorption capacity than the virgin GAC. The high adsorption capacity shown by the MgO-GAC composite could be attributed to the fact that the composite structure exploits both physical and chemical adsorption processes simultaneously. The physical adsorption was occured at themacro and mesoporous structure of GAC whereas as the chemical adsorption was at the nano-MgO site. The differential thermogravimetric (DTG) analysis evidenced that the main mode of chemical adsorption was the oxidation of H2S, whereas a secondary metal supported addition mechanism was also shown to exist. (C) 2017 Elsevier Ltd. All rights reserved.

Název v anglickém jazyce

Synthesis and characterization of nano magnesium oxide impregnated granular activated carbon composite for H2S removal applications

Popis výsledku anglicky

In this study, a composite of nanomagnesium oxide (MgO) and granular activated carbon (GAC) was synthesized and analyzed for itsH(2)S adsorption capacity. The synthesis of composite involved a spray technique, which incorporates nano MgO even into micropores of GAC. The nanocomposite was characterized structurally and chemically, using scanning electron microscopy (SEM), X-ray diffraction (XRD), thermogravimetric analysis (TGA), N-2-BET adsorption studies, ultra-violet photoelectron spectroscopy (UPS) and near edge X-ray absorption fine structure spectroscopy (NEXAFS) and inductively coupled plasma optical emission spectroscopy (ICP-OES). The composite described herein showedmore than five times higher H2S adsorption capacity than the virgin GAC. The high adsorption capacity shown by the MgO-GAC composite could be attributed to the fact that the composite structure exploits both physical and chemical adsorption processes simultaneously. The physical adsorption was occured at themacro and mesoporous structure of GAC whereas as the chemical adsorption was at the nano-MgO site. The differential thermogravimetric (DTG) analysis evidenced that the main mode of chemical adsorption was the oxidation of H2S, whereas a secondary metal supported addition mechanism was also shown to exist. (C) 2017 Elsevier Ltd. All rights reserved.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10305 - Fluids and plasma physics (including surface physics)

Projekt

—

Návaznosti

—

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Materials and Design

ISSN

0264-1275

e-ISSN

—

Svazek periodika

136

Číslo periodika v rámci svazku

Dec

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

10

Strana od-do

127-136

Kód UT WoS článku

000414253800010

EID výsledku v databázi Scopus

2-s2.0-85030860501