{"title":"乙二硫醇改性纳米二氧化硅颗粒用于选择性去除水体废水中的 Hg2+ 离子","authors":"Anandhu Mohan, Munusamy Ashwini, Madhappan Santhamoorthy, Kokila Thirupathi, Ranganathan Suresh, Loganathan Guganathan, Natarajan Arumugam, Abdulrahman I. Almansour, Mei-Ching Lin, Seong-Cheol Kim, Keerthika Kumarasamy, Thi Tuong Vy Phan","doi":"10.1515/zpch-2024-0605","DOIUrl":null,"url":null,"abstract":"\n A mesoporous silica nanoparticle was synthesized by incorporating (3-glycidoxypropyl trimethoxysilane (GPTS)) via sol-gel co-condensation method using Pluronic P123 as structure directing agent and further reacted with ethanedithiol (ED) by post-surface modification process. To produce ethanedithiol-modified silica nanoparticles, approximately 20 wt% of GPTS was incorporated into the mesoporous silica pore walls by reacting tetraethyl orthosilicate and GPTS mixture (80:20 wt/wt%). Next, the ethanedithiol groups were introduced onto the silica surface by reacting with the epoxy part of GPTS and thiol groups of ED to produce the ED-modified-mesoporous silica adsorbent (MS-ED NPs) material. The synthesized MS-ED NPs show a high surface area, pore size, and mesopore volume of approximately 556 m2/g, 2.7 nm, and 0.052 cm3/g, respectively. The MS-ED NPs showed selective removal of mercury ions (Hg2+) ions from the aqueous solution in the presence of other competitive metal ions with an adsorption amount of ∼168 mg/g with a removal capacity of approximately >90 % from the initial metal ion solutions (100 mg/L). The produced MS-ED NPs can be reusable up to 5 times by treating the metal-adsorbed MS-ED NPs in an acidic (0.1 M HCl) aqueous solution. Hence, the MS-ED NPs could be utilized to selectively remove Hg2+ ions from aqueous wastewater.","PeriodicalId":23847,"journal":{"name":"Zeitschrift für Physikalische Chemie","volume":"22 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Ethanedithiol-modified silica nanoparticles for selective removal of Hg2+ ions from aqueous wastewater\",\"authors\":\"Anandhu Mohan, Munusamy Ashwini, Madhappan Santhamoorthy, Kokila Thirupathi, Ranganathan Suresh, Loganathan Guganathan, Natarajan Arumugam, Abdulrahman I. Almansour, Mei-Ching Lin, Seong-Cheol Kim, Keerthika Kumarasamy, Thi Tuong Vy Phan\",\"doi\":\"10.1515/zpch-2024-0605\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"\\n A mesoporous silica nanoparticle was synthesized by incorporating (3-glycidoxypropyl trimethoxysilane (GPTS)) via sol-gel co-condensation method using Pluronic P123 as structure directing agent and further reacted with ethanedithiol (ED) by post-surface modification process. To produce ethanedithiol-modified silica nanoparticles, approximately 20 wt% of GPTS was incorporated into the mesoporous silica pore walls by reacting tetraethyl orthosilicate and GPTS mixture (80:20 wt/wt%). Next, the ethanedithiol groups were introduced onto the silica surface by reacting with the epoxy part of GPTS and thiol groups of ED to produce the ED-modified-mesoporous silica adsorbent (MS-ED NPs) material. The synthesized MS-ED NPs show a high surface area, pore size, and mesopore volume of approximately 556 m2/g, 2.7 nm, and 0.052 cm3/g, respectively. The MS-ED NPs showed selective removal of mercury ions (Hg2+) ions from the aqueous solution in the presence of other competitive metal ions with an adsorption amount of ∼168 mg/g with a removal capacity of approximately >90 % from the initial metal ion solutions (100 mg/L). The produced MS-ED NPs can be reusable up to 5 times by treating the metal-adsorbed MS-ED NPs in an acidic (0.1 M HCl) aqueous solution. Hence, the MS-ED NPs could be utilized to selectively remove Hg2+ ions from aqueous wastewater.\",\"PeriodicalId\":23847,\"journal\":{\"name\":\"Zeitschrift für Physikalische Chemie\",\"volume\":\"22 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-05-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Zeitschrift für Physikalische Chemie\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1515/zpch-2024-0605\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Zeitschrift für Physikalische Chemie","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1515/zpch-2024-0605","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Ethanedithiol-modified silica nanoparticles for selective removal of Hg2+ ions from aqueous wastewater
A mesoporous silica nanoparticle was synthesized by incorporating (3-glycidoxypropyl trimethoxysilane (GPTS)) via sol-gel co-condensation method using Pluronic P123 as structure directing agent and further reacted with ethanedithiol (ED) by post-surface modification process. To produce ethanedithiol-modified silica nanoparticles, approximately 20 wt% of GPTS was incorporated into the mesoporous silica pore walls by reacting tetraethyl orthosilicate and GPTS mixture (80:20 wt/wt%). Next, the ethanedithiol groups were introduced onto the silica surface by reacting with the epoxy part of GPTS and thiol groups of ED to produce the ED-modified-mesoporous silica adsorbent (MS-ED NPs) material. The synthesized MS-ED NPs show a high surface area, pore size, and mesopore volume of approximately 556 m2/g, 2.7 nm, and 0.052 cm3/g, respectively. The MS-ED NPs showed selective removal of mercury ions (Hg2+) ions from the aqueous solution in the presence of other competitive metal ions with an adsorption amount of ∼168 mg/g with a removal capacity of approximately >90 % from the initial metal ion solutions (100 mg/L). The produced MS-ED NPs can be reusable up to 5 times by treating the metal-adsorbed MS-ED NPs in an acidic (0.1 M HCl) aqueous solution. Hence, the MS-ED NPs could be utilized to selectively remove Hg2+ ions from aqueous wastewater.