Synthesis and adsorption properties of titanosilicates ETS-4 and ETS-10 from fly ash

Liying Liu, Ranjeet Singh, Gang Li, Penny Xiao, Paul Webley, Yuchun Zhai

Research output: Contribution to journalArticleResearchpeer-review

Abstract

ETS-4 and ETS-10 titanosilicates were prepared from fly ash and anatase, as silica and titanium sources respectively, via a hydrothermal procedure for the first time. The fusion of fly ash by alkali was carried out at a relatively low temperature and the use potassium fluoride salt was avoided in the synthesis of ETS. The by-product of this process is mainly NaCl, which is a useful source material for industry. The energy efficiency and yield of the synthesis process was improved by directly recycling the final filtrate after recovering the product viz ETS-4. All the ETS materials were characterized in terms of structural morphology, thermal stability and surface/pore properties. The properties of ETS-4 prepared from fly ash by the filtrate recycling method were comparable to that from commercial sources. The results show that ETS type materials can be prepared from cheaper resources, with good purity, comparable physico-chemical properties as well as excellent adsorption properties with lower environmental impact.
Original languageEnglish
Pages (from-to)340 - 345
Number of pages6
JournalJournal of Hazardous Materials
Volume195
DOIs
Publication statusPublished - 2011

Cite this

Liu, Liying ; Singh, Ranjeet ; Li, Gang ; Xiao, Penny ; Webley, Paul ; Zhai, Yuchun. / Synthesis and adsorption properties of titanosilicates ETS-4 and ETS-10 from fly ash. In: Journal of Hazardous Materials. 2011 ; Vol. 195. pp. 340 - 345.
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abstract = "ETS-4 and ETS-10 titanosilicates were prepared from fly ash and anatase, as silica and titanium sources respectively, via a hydrothermal procedure for the first time. The fusion of fly ash by alkali was carried out at a relatively low temperature and the use potassium fluoride salt was avoided in the synthesis of ETS. The by-product of this process is mainly NaCl, which is a useful source material for industry. The energy efficiency and yield of the synthesis process was improved by directly recycling the final filtrate after recovering the product viz ETS-4. All the ETS materials were characterized in terms of structural morphology, thermal stability and surface/pore properties. The properties of ETS-4 prepared from fly ash by the filtrate recycling method were comparable to that from commercial sources. The results show that ETS type materials can be prepared from cheaper resources, with good purity, comparable physico-chemical properties as well as excellent adsorption properties with lower environmental impact.",
author = "Liying Liu and Ranjeet Singh and Gang Li and Penny Xiao and Paul Webley and Yuchun Zhai",
year = "2011",
doi = "10.1016/j.jhazmat.2011.08.046",
language = "English",
volume = "195",
pages = "340 -- 345",
journal = "Journal of Hazardous Materials",
issn = "0304-3894",
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Synthesis and adsorption properties of titanosilicates ETS-4 and ETS-10 from fly ash. / Liu, Liying; Singh, Ranjeet; Li, Gang; Xiao, Penny; Webley, Paul; Zhai, Yuchun.

In: Journal of Hazardous Materials, Vol. 195, 2011, p. 340 - 345.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Synthesis and adsorption properties of titanosilicates ETS-4 and ETS-10 from fly ash

AU - Liu, Liying

AU - Singh, Ranjeet

AU - Li, Gang

AU - Xiao, Penny

AU - Webley, Paul

AU - Zhai, Yuchun

PY - 2011

Y1 - 2011

N2 - ETS-4 and ETS-10 titanosilicates were prepared from fly ash and anatase, as silica and titanium sources respectively, via a hydrothermal procedure for the first time. The fusion of fly ash by alkali was carried out at a relatively low temperature and the use potassium fluoride salt was avoided in the synthesis of ETS. The by-product of this process is mainly NaCl, which is a useful source material for industry. The energy efficiency and yield of the synthesis process was improved by directly recycling the final filtrate after recovering the product viz ETS-4. All the ETS materials were characterized in terms of structural morphology, thermal stability and surface/pore properties. The properties of ETS-4 prepared from fly ash by the filtrate recycling method were comparable to that from commercial sources. The results show that ETS type materials can be prepared from cheaper resources, with good purity, comparable physico-chemical properties as well as excellent adsorption properties with lower environmental impact.

AB - ETS-4 and ETS-10 titanosilicates were prepared from fly ash and anatase, as silica and titanium sources respectively, via a hydrothermal procedure for the first time. The fusion of fly ash by alkali was carried out at a relatively low temperature and the use potassium fluoride salt was avoided in the synthesis of ETS. The by-product of this process is mainly NaCl, which is a useful source material for industry. The energy efficiency and yield of the synthesis process was improved by directly recycling the final filtrate after recovering the product viz ETS-4. All the ETS materials were characterized in terms of structural morphology, thermal stability and surface/pore properties. The properties of ETS-4 prepared from fly ash by the filtrate recycling method were comparable to that from commercial sources. The results show that ETS type materials can be prepared from cheaper resources, with good purity, comparable physico-chemical properties as well as excellent adsorption properties with lower environmental impact.

UR - http://www.sciencedirect.com/science/article/pii/S0304389411010648

U2 - 10.1016/j.jhazmat.2011.08.046

DO - 10.1016/j.jhazmat.2011.08.046

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JO - Journal of Hazardous Materials

JF - Journal of Hazardous Materials

SN - 0304-3894

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