Effect and mechanism of ultrasound on acid loading in the preparation of silicon-based sulfonic solid acids
Silicon-based sulfonic solid acids have the advantages of high catalytic activity and selectivity, easy separation from products, low equipment corrosion, and environmental protection, and sulfuric acid loading is the key to their preparation. To overcome the shortcomings of low acid loading and une...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-12-01
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| Series: | Ultrasonics Sonochemistry |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1350417723004017 |
| _version_ | 1797386812410298368 |
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| author | Wenlong Miao Tian Wang A.V. Ravindra Weichao Huang Jue Hu Haoran Xv Thiquynhxuan Le Libo Zhang |
| author_facet | Wenlong Miao Tian Wang A.V. Ravindra Weichao Huang Jue Hu Haoran Xv Thiquynhxuan Le Libo Zhang |
| author_sort | Wenlong Miao |
| collection | DOAJ |
| description | Silicon-based sulfonic solid acids have the advantages of high catalytic activity and selectivity, easy separation from products, low equipment corrosion, and environmental protection, and sulfuric acid loading is the key to their preparation. To overcome the shortcomings of low acid loading and uneven distribution in the existing preparation methods of micron-sized silicon-based sulfonic solid acids, a method was proposed to prepare micron-sized silicon-based sulfonic solid acids using ultrasonic enhanced technology. The effect of different reaction parameters, such as time, power, and temperature of ultrasonication, sulfonation temperature and time, and sulfuric acid concentration, on acid loading in solid acid was investigated in this work. The results showed that a micron-sized mesoporous silica-based solid acid was successfully synthesized with a high acid content of 0.8633 mmol/g, uniform acid distribution, high specific surface area of 269.332 m2/g, and large average particle size of 172.142 μm in this work. The introduction of ultrasound was found to expand the carrier's pore volume and increase the carrier's specific surface area and the number of hydroxyl groups, thereby increasing the acid loading capacity and the specific surface area of the solid acid sample by 66.6 % and 10.97 % respectively, compared with the case without ultrasound. |
| first_indexed | 2024-03-08T22:15:51Z |
| format | Article |
| id | doaj.art-f5689b8024f444d8ac04bf7c0ee94303 |
| institution | Directory Open Access Journal |
| issn | 1350-4177 |
| language | English |
| last_indexed | 2024-03-08T22:15:51Z |
| publishDate | 2023-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ultrasonics Sonochemistry |
| spelling | doaj.art-f5689b8024f444d8ac04bf7c0ee943032023-12-19T04:16:41ZengElsevierUltrasonics Sonochemistry1350-41772023-12-01101106689Effect and mechanism of ultrasound on acid loading in the preparation of silicon-based sulfonic solid acidsWenlong Miao0Tian Wang1A.V. Ravindra2Weichao Huang3Jue Hu4Haoran Xv5Thiquynhxuan Le6Libo Zhang7Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, Yunnan, China; State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, Yunnan, ChinaFaculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, Yunnan, China; State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, Yunnan, ChinaDepartment of Physics and Nanotechnology, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu 603203, IndiaChina Rare Earth (Guangxi) Jinyuan Rare Earth New Materials Co., Ltd., Hezhou, 542603, ChinaFaculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, Yunnan, China; State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, Yunnan, ChinaFaculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, Yunnan, China; State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, Yunnan, ChinaFaculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, Yunnan, China; State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, Yunnan, China; Corresponding authors at: Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, Yunnan, China.Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, Yunnan, China; State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, Yunnan, China; Corresponding authors at: Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, Yunnan, China.Silicon-based sulfonic solid acids have the advantages of high catalytic activity and selectivity, easy separation from products, low equipment corrosion, and environmental protection, and sulfuric acid loading is the key to their preparation. To overcome the shortcomings of low acid loading and uneven distribution in the existing preparation methods of micron-sized silicon-based sulfonic solid acids, a method was proposed to prepare micron-sized silicon-based sulfonic solid acids using ultrasonic enhanced technology. The effect of different reaction parameters, such as time, power, and temperature of ultrasonication, sulfonation temperature and time, and sulfuric acid concentration, on acid loading in solid acid was investigated in this work. The results showed that a micron-sized mesoporous silica-based solid acid was successfully synthesized with a high acid content of 0.8633 mmol/g, uniform acid distribution, high specific surface area of 269.332 m2/g, and large average particle size of 172.142 μm in this work. The introduction of ultrasound was found to expand the carrier's pore volume and increase the carrier's specific surface area and the number of hydroxyl groups, thereby increasing the acid loading capacity and the specific surface area of the solid acid sample by 66.6 % and 10.97 % respectively, compared with the case without ultrasound.http://www.sciencedirect.com/science/article/pii/S1350417723004017UltrasoundSolid acidAcid loadingStrengthening mechanism |
| spellingShingle | Wenlong Miao Tian Wang A.V. Ravindra Weichao Huang Jue Hu Haoran Xv Thiquynhxuan Le Libo Zhang Effect and mechanism of ultrasound on acid loading in the preparation of silicon-based sulfonic solid acids Ultrasonics Sonochemistry Ultrasound Solid acid Acid loading Strengthening mechanism |
| title | Effect and mechanism of ultrasound on acid loading in the preparation of silicon-based sulfonic solid acids |
| title_full | Effect and mechanism of ultrasound on acid loading in the preparation of silicon-based sulfonic solid acids |
| title_fullStr | Effect and mechanism of ultrasound on acid loading in the preparation of silicon-based sulfonic solid acids |
| title_full_unstemmed | Effect and mechanism of ultrasound on acid loading in the preparation of silicon-based sulfonic solid acids |
| title_short | Effect and mechanism of ultrasound on acid loading in the preparation of silicon-based sulfonic solid acids |
| title_sort | effect and mechanism of ultrasound on acid loading in the preparation of silicon based sulfonic solid acids |
| topic | Ultrasound Solid acid Acid loading Strengthening mechanism |
| url | http://www.sciencedirect.com/science/article/pii/S1350417723004017 |
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