Innovation of Green Chemistry for Synthesizing Nanoporous and Microporous Aluminosilicate via Microemulsion Technique
Chiang Mai Journal of Science
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Faculty of Science, Chiang Mai University
2020
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th-cmuir.6653943832-687462020-06-10T07:12:28Z Innovation of Green Chemistry for Synthesizing Nanoporous and Microporous Aluminosilicate via Microemulsion Technique Parichat Iam-khong Pailin Muchan Nimit Sriprang Manit Nithitanakul green chemistry microemulsion geosynthesis nanoporous microporous inorganic polymer aluminosilicates mineral polymer synthesis Chiang Mai Journal of Science This work proposed a novel and straightforward method for synthesizing of nanoporous and microporous aluminosilicate with simple procedure and short process time at room temperature. It was conducted by microemulsion technique using aluminum sulfate hexadecahydrate (Al2(SO4)3.16H2O) and tetraethylorthosilicate (TEOS) as aluminium and silicon sources. Microemulsion or nanoreactor was formed with the use of a straight chain cationic cetyltrimethylammonium bromide (CTAB) surfactant with mixed solvents of butanol, heptane, and water. These microemulsions allowed the aluminosilicate formation to occur at room temperature. 1H NMR data were used to support the alignment of chemical reagents. The suspension sample was purified by washing with 10 wt% ethanol and then evaporated the solvent out to collect a white sample powder of aluminosilicate (as-synthesized product). As-synthesized product was calcined at 550 ºC for 5 hours. The results showed that the purification and collection techniques used were successful and capable of eliminating the carbonaceous residues at 300 ºC. The effect of Si/Al ratio on the formation of aluminosilicate was also studied by varying the ratio of Si/Al at 2/1 and 10/1. The amorphous phases of 2/1 and 10/1 Si/Al were clearly demonstrated by observing an XRD pattern. The surface area of aluminosilicate was increased with increasing Si/Al ratio. The amorphous phase aluminosilcate has Langmuir’s surface area of 394.8 m2/g (Si/Al = 2/1) and 1,217 m2/g (Si/Al = 10/1) with the total pore volume of 0.115 cc/g (Si/Al =2/1) and 0.320 cc/g (Si/Al = 10/1) and average pore diameter of 25 Å (Si/Al = 2/1) and 14 Å (Si/Al=10/1). Furthermore, FT-IR spectra suggested that as-synthesized formations were similar to analcime and ZSM-5 for Si/Al of 2/1 and 10/1, respectively. 2020-06-10T07:12:28Z 2020-06-10T07:12:28Z 2020 Chiang Mai Journal of Science 47,3 (May 2020), p.473-483 2465-3845 https://epg.science.cmu.ac.th/ejournal/dl.php?journal_id=10918 http://cmuir.cmu.ac.th/jspui/handle/6653943832/68746 Eng Faculty of Science, Chiang Mai University |
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green chemistry microemulsion geosynthesis nanoporous microporous inorganic polymer aluminosilicates mineral polymer synthesis |
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green chemistry microemulsion geosynthesis nanoporous microporous inorganic polymer aluminosilicates mineral polymer synthesis Parichat Iam-khong Pailin Muchan Nimit Sriprang Manit Nithitanakul Innovation of Green Chemistry for Synthesizing Nanoporous and Microporous Aluminosilicate via Microemulsion Technique |
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Chiang Mai Journal of Science |
author |
Parichat Iam-khong Pailin Muchan Nimit Sriprang Manit Nithitanakul |
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Parichat Iam-khong Pailin Muchan Nimit Sriprang Manit Nithitanakul |
author_sort |
Parichat Iam-khong |
title |
Innovation of Green Chemistry for Synthesizing Nanoporous and Microporous Aluminosilicate via Microemulsion Technique |
title_short |
Innovation of Green Chemistry for Synthesizing Nanoporous and Microporous Aluminosilicate via Microemulsion Technique |
title_full |
Innovation of Green Chemistry for Synthesizing Nanoporous and Microporous Aluminosilicate via Microemulsion Technique |
title_fullStr |
Innovation of Green Chemistry for Synthesizing Nanoporous and Microporous Aluminosilicate via Microemulsion Technique |
title_full_unstemmed |
Innovation of Green Chemistry for Synthesizing Nanoporous and Microporous Aluminosilicate via Microemulsion Technique |
title_sort |
innovation of green chemistry for synthesizing nanoporous and microporous aluminosilicate via microemulsion technique |
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Faculty of Science, Chiang Mai University |
publishDate |
2020 |
url |
https://epg.science.cmu.ac.th/ejournal/dl.php?journal_id=10918 http://cmuir.cmu.ac.th/jspui/handle/6653943832/68746 |
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