Activated carbons from golden shower upon different chemical activation methods: Synthesis and characterizations

Activated carbons (ACs) were synthesized from golden shower (GS) through chemical activation. Two synthesis processes were used: one-stage and two-stage processes. In the one-stage process, GS that was impregnated with K 2 CO 3 was directly pyrolyzed (GSAC), and the two-stage process consisted of (1...

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Main Authors: Hai Nguyen Tran, Huan-Ping Chao, Sheng-Jie You
Format: Article
Language:English
Published: SAGE Publications 2018-02-01
Series:Adsorption Science & Technology
Online Access:https://doi.org/10.1177/0263617416684837
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author Hai Nguyen Tran
Huan-Ping Chao
Sheng-Jie You
author_facet Hai Nguyen Tran
Huan-Ping Chao
Sheng-Jie You
author_sort Hai Nguyen Tran
collection DOAJ
description Activated carbons (ACs) were synthesized from golden shower (GS) through chemical activation. Two synthesis processes were used: one-stage and two-stage processes. In the one-stage process, GS that was impregnated with K 2 CO 3 was directly pyrolyzed (GSAC), and the two-stage process consisted of (1) pyrolytic or hydrolytic carbonization to produce biochar or hydrochar and (2) subsequent chemical activation was defined as GSBAC and GSHAC, respectively. The activated carbon’s characteristics—thermal stability and textural, physicochemical, structural, and crystal properties—were thoroughly investigated. Results demonstrated that the characteristics of activated carbons strongly depend on the method used for their synthesis. The Brunauer–Emmett–Teller surface area followed the order GSAC (1413 m 2 /g) > GSHAC (1238 m 2 /g) > GSBAC (812 m 2 /g). The existence of acidic groups was determined through Fourier transform infrared spectroscopy and Boehm titration. The excellent adsorptive capacities of the activated carbons were confirmed from the iodine number (1568–2695 mg/g) and methylene number (143–233 mg/g).
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spelling doaj.art-63be7776c188450ba406d41d5ed5f6a62024-03-02T17:47:38ZengSAGE PublicationsAdsorption Science & Technology0263-61742048-40382018-02-013610.1177/0263617416684837Activated carbons from golden shower upon different chemical activation methods: Synthesis and characterizationsHai Nguyen TranHuan-Ping ChaoSheng-Jie YouActivated carbons (ACs) were synthesized from golden shower (GS) through chemical activation. Two synthesis processes were used: one-stage and two-stage processes. In the one-stage process, GS that was impregnated with K 2 CO 3 was directly pyrolyzed (GSAC), and the two-stage process consisted of (1) pyrolytic or hydrolytic carbonization to produce biochar or hydrochar and (2) subsequent chemical activation was defined as GSBAC and GSHAC, respectively. The activated carbon’s characteristics—thermal stability and textural, physicochemical, structural, and crystal properties—were thoroughly investigated. Results demonstrated that the characteristics of activated carbons strongly depend on the method used for their synthesis. The Brunauer–Emmett–Teller surface area followed the order GSAC (1413 m 2 /g) > GSHAC (1238 m 2 /g) > GSBAC (812 m 2 /g). The existence of acidic groups was determined through Fourier transform infrared spectroscopy and Boehm titration. The excellent adsorptive capacities of the activated carbons were confirmed from the iodine number (1568–2695 mg/g) and methylene number (143–233 mg/g).https://doi.org/10.1177/0263617416684837
spellingShingle Hai Nguyen Tran
Huan-Ping Chao
Sheng-Jie You
Activated carbons from golden shower upon different chemical activation methods: Synthesis and characterizations
Adsorption Science & Technology
title Activated carbons from golden shower upon different chemical activation methods: Synthesis and characterizations
title_full Activated carbons from golden shower upon different chemical activation methods: Synthesis and characterizations
title_fullStr Activated carbons from golden shower upon different chemical activation methods: Synthesis and characterizations
title_full_unstemmed Activated carbons from golden shower upon different chemical activation methods: Synthesis and characterizations
title_short Activated carbons from golden shower upon different chemical activation methods: Synthesis and characterizations
title_sort activated carbons from golden shower upon different chemical activation methods synthesis and characterizations
url https://doi.org/10.1177/0263617416684837
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