Conversion of rice husk ash to zeolite beta

Didik Prasetyoko; Zainab Ramli; Salasiah Endud; Halimaton Hamdan; Bogdan Sulikowski

doi:10.1016/j.wasman.2005.09.009

Conversion of rice husk ash to zeolite beta

Didik Prasetyoko, Zainab Ramli^*, Salasiah Endud, Halimaton Hamdan, Bogdan Sulikowski

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

166 Citations (Scopus)

Abstract

White rice husk ash (RHA), an agriculture waste containing crystalline tridymite and α-cristobalite, was used as a silica source for zeolite Beta synthesis. The crystallization of zeolite Beta from RHA at 150 °C in the presence of tetraethylammonium hydroxide was monitored by XRD, FTIR and ²⁹Si MAS NMR techniques. It was found that zeolite Beta started to form after 12 h and the complete crystallization of zeolite Beta phase was achieved after 2 d. XRD, ²⁹Si MAS NMR and solid yield studies indicate that the transformation mechanism of silica present in RHA to zeolite Beta involves dissolution of the ash, formation of an amorphous aluminosilicate after 6 h of crystallization, followed by dissolution in the mother liquor and final transformation to pure zeolite Beta crystals.

Original language	English
Pages (from-to)	1173-1179
Number of pages	7
Journal	Waste Management
Volume	26
Issue number	10
DOIs	https://doi.org/10.1016/j.wasman.2005.09.009
Publication status	Published - 2006
Externally published	Yes

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10.1016/j.wasman.2005.09.009

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title = "Conversion of rice husk ash to zeolite beta",

abstract = "White rice husk ash (RHA), an agriculture waste containing crystalline tridymite and α-cristobalite, was used as a silica source for zeolite Beta synthesis. The crystallization of zeolite Beta from RHA at 150 °C in the presence of tetraethylammonium hydroxide was monitored by XRD, FTIR and 29Si MAS NMR techniques. It was found that zeolite Beta started to form after 12 h and the complete crystallization of zeolite Beta phase was achieved after 2 d. XRD, 29Si MAS NMR and solid yield studies indicate that the transformation mechanism of silica present in RHA to zeolite Beta involves dissolution of the ash, formation of an amorphous aluminosilicate after 6 h of crystallization, followed by dissolution in the mother liquor and final transformation to pure zeolite Beta crystals.",

author = "Didik Prasetyoko and Zainab Ramli and Salasiah Endud and Halimaton Hamdan and Bogdan Sulikowski",

note = "Funding Information: The authors thank Universiti Teknologi Malaysia and The Ministry of Science and Environment Malaysia for financial support, under IRPA Grant Vot 72117. ",

year = "2006",

doi = "10.1016/j.wasman.2005.09.009",

language = "English",

volume = "26",

pages = "1173--1179",

journal = "Waste Management",

issn = "0956-053X",

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TY - JOUR

T1 - Conversion of rice husk ash to zeolite beta

AU - Prasetyoko, Didik

AU - Ramli, Zainab

AU - Endud, Salasiah

AU - Hamdan, Halimaton

AU - Sulikowski, Bogdan

N1 - Funding Information: The authors thank Universiti Teknologi Malaysia and The Ministry of Science and Environment Malaysia for financial support, under IRPA Grant Vot 72117.

PY - 2006

Y1 - 2006

N2 - White rice husk ash (RHA), an agriculture waste containing crystalline tridymite and α-cristobalite, was used as a silica source for zeolite Beta synthesis. The crystallization of zeolite Beta from RHA at 150 °C in the presence of tetraethylammonium hydroxide was monitored by XRD, FTIR and 29Si MAS NMR techniques. It was found that zeolite Beta started to form after 12 h and the complete crystallization of zeolite Beta phase was achieved after 2 d. XRD, 29Si MAS NMR and solid yield studies indicate that the transformation mechanism of silica present in RHA to zeolite Beta involves dissolution of the ash, formation of an amorphous aluminosilicate after 6 h of crystallization, followed by dissolution in the mother liquor and final transformation to pure zeolite Beta crystals.

AB - White rice husk ash (RHA), an agriculture waste containing crystalline tridymite and α-cristobalite, was used as a silica source for zeolite Beta synthesis. The crystallization of zeolite Beta from RHA at 150 °C in the presence of tetraethylammonium hydroxide was monitored by XRD, FTIR and 29Si MAS NMR techniques. It was found that zeolite Beta started to form after 12 h and the complete crystallization of zeolite Beta phase was achieved after 2 d. XRD, 29Si MAS NMR and solid yield studies indicate that the transformation mechanism of silica present in RHA to zeolite Beta involves dissolution of the ash, formation of an amorphous aluminosilicate after 6 h of crystallization, followed by dissolution in the mother liquor and final transformation to pure zeolite Beta crystals.

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DO - 10.1016/j.wasman.2005.09.009

M3 - Article

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SN - 0956-053X

VL - 26

SP - 1173

EP - 1179

JO - Waste Management

JF - Waste Management

IS - 10

ER -

Conversion of rice husk ash to zeolite beta

Abstract

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