Synthesis of potassium zeolite from rice husk ash as a silicon source

Rice is of great economic, social and cultural importance for many countries. However, rice industry generates rice husk ash (RHA), a low-density silicon-rich waste. The current work studied a way to minimize the impacts of this waste by synthesizing potassium zeolites from RHA. It was not found in...

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Main Authors:	Camila Gomes Flores, Helena Schneider, Juliana Silveira Dornelles, Lucas Bonan Gomes, Nilson Romeu Marcilio, Pedro Juarez Melo
Format:	Article
Language:	English
Published:	Elsevier 2021-10-01
Series:	Cleaner Engineering and Technology
Subjects:	Rice husk ash Alternative silicon source Potassic zeolite
Online Access:	http://www.sciencedirect.com/science/article/pii/S2666790821001610

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spelling	doaj-0f7c8b2e13414be596ea0f86ec2c8ae12021-09-11T04:31:08ZengElsevierCleaner Engineering and Technology2666-79082021-10-014100201Synthesis of potassium zeolite from rice husk ash as a silicon sourceCamila Gomes Flores0Helena Schneider1Juliana Silveira Dornelles2Lucas Bonan Gomes3Nilson Romeu Marcilio4Pedro Juarez Melo5Department of Chemical Engineering, Federal University of Rio Grande Do Sul, Porto Alegre, Brazil; Corresponding author. 2777 Ramiro Barcelos, 90035-007, Porto Alegre, Rio Grande do Sul, Brazil.Department of Chemical Engineering, Federal University of Rio Grande Do Sul, Porto Alegre, BrazilDepartment of Chemical Engineering, Federal University of Rio Grande Do Sul, Porto Alegre, BrazilGeosciences Institute, Federal University of Rio Grande Do Sul, Porto Alegre, BrazilDepartment of Chemical Engineering, Federal University of Rio Grande Do Sul, Porto Alegre, BrazilDepartment of Chemical Engineering, Federal University of Rio Grande Do Sul, Porto Alegre, BrazilRice is of great economic, social and cultural importance for many countries. However, rice industry generates rice husk ash (RHA), a low-density silicon-rich waste. The current work studied a way to minimize the impacts of this waste by synthesizing potassium zeolites from RHA. It was not found in the literature studies that have synthesized template-free potassic zeolites from this waste material. Commercial KOH and public supply water were used to approach industrial conditions. Time and temperature of the hydrothermal treatment were evaluated. The synthesized materials were mesoporous and it was identified the formation of potassium zeolites (Chabazite-K and Merlinoite). This zeolite was synthesized using low cost bio-precursors and this material can be potentially used as a potassium fertilizer. Based on this future application, the optimum condition for synthesis was using a 5 mol L−1 KOH solution, 2 mL g−1 solution:RHA ratio, 8 h of reaction time, and 125 °C of temperature reaction.http://www.sciencedirect.com/science/article/pii/S2666790821001610Rice husk ashAlternative silicon sourcePotassic zeolite
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Camila Gomes Flores Helena Schneider Juliana Silveira Dornelles Lucas Bonan Gomes Nilson Romeu Marcilio Pedro Juarez Melo
spellingShingle	Camila Gomes Flores Helena Schneider Juliana Silveira Dornelles Lucas Bonan Gomes Nilson Romeu Marcilio Pedro Juarez Melo Synthesis of potassium zeolite from rice husk ash as a silicon source Cleaner Engineering and Technology Rice husk ash Alternative silicon source Potassic zeolite
author_facet	Camila Gomes Flores Helena Schneider Juliana Silveira Dornelles Lucas Bonan Gomes Nilson Romeu Marcilio Pedro Juarez Melo
author_sort	Camila Gomes Flores
title	Synthesis of potassium zeolite from rice husk ash as a silicon source
title_short	Synthesis of potassium zeolite from rice husk ash as a silicon source
title_full	Synthesis of potassium zeolite from rice husk ash as a silicon source
title_fullStr	Synthesis of potassium zeolite from rice husk ash as a silicon source
title_full_unstemmed	Synthesis of potassium zeolite from rice husk ash as a silicon source
title_sort	synthesis of potassium zeolite from rice husk ash as a silicon source
publisher	Elsevier
series	Cleaner Engineering and Technology
issn	2666-7908
publishDate	2021-10-01
description	Rice is of great economic, social and cultural importance for many countries. However, rice industry generates rice husk ash (RHA), a low-density silicon-rich waste. The current work studied a way to minimize the impacts of this waste by synthesizing potassium zeolites from RHA. It was not found in the literature studies that have synthesized template-free potassic zeolites from this waste material. Commercial KOH and public supply water were used to approach industrial conditions. Time and temperature of the hydrothermal treatment were evaluated. The synthesized materials were mesoporous and it was identified the formation of potassium zeolites (Chabazite-K and Merlinoite). This zeolite was synthesized using low cost bio-precursors and this material can be potentially used as a potassium fertilizer. Based on this future application, the optimum condition for synthesis was using a 5 mol L−1 KOH solution, 2 mL g−1 solution:RHA ratio, 8 h of reaction time, and 125 °C of temperature reaction.
topic	Rice husk ash Alternative silicon source Potassic zeolite
url	http://www.sciencedirect.com/science/article/pii/S2666790821001610
work_keys_str_mv	AT camilagomesflores synthesisofpotassiumzeolitefromricehuskashasasiliconsource AT helenaschneider synthesisofpotassiumzeolitefromricehuskashasasiliconsource AT julianasilveiradornelles synthesisofpotassiumzeolitefromricehuskashasasiliconsource AT lucasbonangomes synthesisofpotassiumzeolitefromricehuskashasasiliconsource AT nilsonromeumarcilio synthesisofpotassiumzeolitefromricehuskashasasiliconsource AT pedrojuarezmelo synthesisofpotassiumzeolitefromricehuskashasasiliconsource
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Synthesis of potassium zeolite from rice husk ash as a silicon source

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