Activation of Graphene Oxide with Hydrochloric Acid for Nitrate Removal from Aqueous Solutions
Long-term drinking of nitrate-contaminated water poses a serious risk to human health. The present study explores the possibility of enhancing the adsorption capacity of graphene oxide via activation with hydrochloric acid for nitrate removal from aqueous solutions. Experiments were performed in a b...
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Water and Wastewater Consulting Engineers Research Development
2017-11-01
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doaj-66dd112b0ab34866af33baae194519922021-03-02T00:25:54ZengWater and Wastewater Consulting Engineers Research Developmentآب و فاضلاب1024-59362383-09052017-11-01285223810.22093/wwj.2017.4590845908Activation of Graphene Oxide with Hydrochloric Acid for Nitrate Removal from Aqueous SolutionsAbolghasem Alighardashi0Zahra Kashitarash-1Abbas Afkhami2Assist. Prof. of Environmental Engineering, Department of Civil, Water and Environmental Engineering, Shahid Beheshti University, Tehran, IranPhD of Environmental Engineering, Department of Civil, Water and Environmental Engineering,Shahid Beheshti University, Tehran, IranProf. of Chemistry, Faculty of Chemistry, Bu-Ali Sina University, Hamadan, IranLong-term drinking of nitrate-contaminated water poses a serious risk to human health. The present study explores the possibility of enhancing the adsorption capacity of graphene oxide via activation with hydrochloric acid for nitrate removal from aqueous solutions. Experiments were performed in a batch reactor in which such major factors as pH, reaction time, and concentrations of both graphene oxide (GO) and activated graphene oxide (AGO) were used as variables. Nitrate removal efficiency was investigated using the One-Way ANOVA statistical test and SPSS-16 software. The chemical composition and solid structure of the synthesized AGO were analyzed using FE-SEM coupled with energy dispersive spectrometry (EDS). The micropore volumes of the samples were determined using the BET and BJH. The predominant composition (52%) of the synthesized AGO was C and its mean pore diameter was 26.896 nm. The maximum adsorption capacity of AGO was estimated at 3333.33 mg/g. Based on the results, the AGO nano-structure may be recomended as a new means for nitrate removal from aqueous solutions.http://www.wwjournal.ir/article_45908_c770445160b290d4f4ed562617899c65.pdfGraphene oxideActivationCharacterizationNitrate |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Abolghasem Alighardashi Zahra Kashitarash- Abbas Afkhami |
spellingShingle |
Abolghasem Alighardashi Zahra Kashitarash- Abbas Afkhami Activation of Graphene Oxide with Hydrochloric Acid for Nitrate Removal from Aqueous Solutions آب و فاضلاب Graphene oxide Activation Characterization Nitrate |
author_facet |
Abolghasem Alighardashi Zahra Kashitarash- Abbas Afkhami |
author_sort |
Abolghasem Alighardashi |
title |
Activation of Graphene Oxide with Hydrochloric Acid for Nitrate Removal from Aqueous Solutions |
title_short |
Activation of Graphene Oxide with Hydrochloric Acid for Nitrate Removal from Aqueous Solutions |
title_full |
Activation of Graphene Oxide with Hydrochloric Acid for Nitrate Removal from Aqueous Solutions |
title_fullStr |
Activation of Graphene Oxide with Hydrochloric Acid for Nitrate Removal from Aqueous Solutions |
title_full_unstemmed |
Activation of Graphene Oxide with Hydrochloric Acid for Nitrate Removal from Aqueous Solutions |
title_sort |
activation of graphene oxide with hydrochloric acid for nitrate removal from aqueous solutions |
publisher |
Water and Wastewater Consulting Engineers Research Development |
series |
آب و فاضلاب |
issn |
1024-5936 2383-0905 |
publishDate |
2017-11-01 |
description |
Long-term drinking of nitrate-contaminated water poses a serious risk to human health. The present study explores the possibility of enhancing the adsorption capacity of graphene oxide via activation with hydrochloric acid for nitrate removal from aqueous solutions. Experiments were performed in a batch reactor in which such major factors as pH, reaction time, and concentrations of both graphene oxide (GO) and activated graphene oxide (AGO) were used as variables. Nitrate removal efficiency was investigated using the One-Way ANOVA statistical test and SPSS-16 software. The chemical composition and solid structure of the synthesized AGO were analyzed using FE-SEM coupled with energy dispersive spectrometry (EDS). The micropore volumes of the samples were determined using the BET and BJH. The predominant composition (52%) of the synthesized AGO was C and its mean pore diameter was 26.896 nm. The maximum adsorption capacity of AGO was estimated at 3333.33 mg/g. Based on the results, the AGO nano-structure may be recomended as a new means for nitrate removal from aqueous solutions. |
topic |
Graphene oxide Activation Characterization Nitrate |
url |
http://www.wwjournal.ir/article_45908_c770445160b290d4f4ed562617899c65.pdf |
work_keys_str_mv |
AT abolghasemalighardashi activationofgrapheneoxidewithhydrochloricacidfornitrateremovalfromaqueoussolutions AT zahrakashitarash activationofgrapheneoxidewithhydrochloricacidfornitrateremovalfromaqueoussolutions AT abbasafkhami activationofgrapheneoxidewithhydrochloricacidfornitrateremovalfromaqueoussolutions |
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1724245329807671296 |