Dispersion of Carbon Nanotubes with “Green” Detergents
Solubilization of carbon nanotubes (CNTs) is a fundamental technique for the use of CNTs and their conjugates as nanodevices and nanobiodevices. In this work, we demonstrate the preparation of CNT suspensions with “green” detergents made from coconuts and bamboo as fundamental research in CNT nanote...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-05-01
|
| Series: | Molecules |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1420-3049/26/10/2908 |
| _version_ | 1797534181577719808 |
|---|---|
| author | Kazuo Umemura Ryo Hamano Hiroaki Komatsu Takashi Ikuno Eko Siswoyo |
| author_facet | Kazuo Umemura Ryo Hamano Hiroaki Komatsu Takashi Ikuno Eko Siswoyo |
| author_sort | Kazuo Umemura |
| collection | DOAJ |
| description | Solubilization of carbon nanotubes (CNTs) is a fundamental technique for the use of CNTs and their conjugates as nanodevices and nanobiodevices. In this work, we demonstrate the preparation of CNT suspensions with “green” detergents made from coconuts and bamboo as fundamental research in CNT nanotechnology. Single-walled CNTs (SWNTs) with a few carboxylic acid groups (3–5%) and pristine multi-walled CNTs (MWNTs) were mixed in each detergent solution and sonicated with a bath-type sonicator. The prepared suspensions were characterized using absorbance spectroscopy, scanning electron microscopy, and Raman spectroscopy. Among the eight combinations of CNTs and detergents (two types of CNTs and four detergents, including sodium dodecyl sulfate (SDS) as the standard), SWNTs/MWNTs were well dispersed in all combinations except the combination of the MWNTs and the bamboo detergent. The stability of the suspensions prepared with coconut detergents was better than that prepared with SDS. Because the efficiency of the bamboo detergents against the MWNTs differed significantly from that against the SWNTs, the natural detergent might be useful for separating CNTs. Our results revealed that the use of the “green” detergents had the advantage of dispersing CNTs as well as SDS. |
| first_indexed | 2024-03-10T11:25:58Z |
| format | Article |
| id | doaj.art-86f649c4470d4afdb84b117e49519a42 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-10T11:25:58Z |
| publishDate | 2021-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-86f649c4470d4afdb84b117e49519a422023-11-21T19:40:16ZengMDPI AGMolecules1420-30492021-05-012610290810.3390/molecules26102908Dispersion of Carbon Nanotubes with “Green” DetergentsKazuo Umemura0Ryo Hamano1Hiroaki Komatsu2Takashi Ikuno3Eko Siswoyo4Department of Physics, Faculty of Science Division II, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku 1628601, JapanDepartment of Physics, Faculty of Science Division II, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku 1628601, JapanDepartment of Applied Electronics, Faculty of Advanced Engineering, Tokyo University of Science, 6-3-1 Niijuku, Katsushika, Tokyo 1258585, JapanDepartment of Applied Electronics, Faculty of Advanced Engineering, Tokyo University of Science, 6-3-1 Niijuku, Katsushika, Tokyo 1258585, JapanDepartment of Environmental Engineering, Islamic University of Indonesia (UII), Jl. Kaliurang Km 14.5, Yogyakarta 55584, IndonesiaSolubilization of carbon nanotubes (CNTs) is a fundamental technique for the use of CNTs and their conjugates as nanodevices and nanobiodevices. In this work, we demonstrate the preparation of CNT suspensions with “green” detergents made from coconuts and bamboo as fundamental research in CNT nanotechnology. Single-walled CNTs (SWNTs) with a few carboxylic acid groups (3–5%) and pristine multi-walled CNTs (MWNTs) were mixed in each detergent solution and sonicated with a bath-type sonicator. The prepared suspensions were characterized using absorbance spectroscopy, scanning electron microscopy, and Raman spectroscopy. Among the eight combinations of CNTs and detergents (two types of CNTs and four detergents, including sodium dodecyl sulfate (SDS) as the standard), SWNTs/MWNTs were well dispersed in all combinations except the combination of the MWNTs and the bamboo detergent. The stability of the suspensions prepared with coconut detergents was better than that prepared with SDS. Because the efficiency of the bamboo detergents against the MWNTs differed significantly from that against the SWNTs, the natural detergent might be useful for separating CNTs. Our results revealed that the use of the “green” detergents had the advantage of dispersing CNTs as well as SDS.https://www.mdpi.com/1420-3049/26/10/2908carbon nanotubegreen moleculesnatural detergentscoconutsbamboo |
| spellingShingle | Kazuo Umemura Ryo Hamano Hiroaki Komatsu Takashi Ikuno Eko Siswoyo Dispersion of Carbon Nanotubes with “Green” Detergents Molecules carbon nanotube green molecules natural detergents coconuts bamboo |
| title | Dispersion of Carbon Nanotubes with “Green” Detergents |
| title_full | Dispersion of Carbon Nanotubes with “Green” Detergents |
| title_fullStr | Dispersion of Carbon Nanotubes with “Green” Detergents |
| title_full_unstemmed | Dispersion of Carbon Nanotubes with “Green” Detergents |
| title_short | Dispersion of Carbon Nanotubes with “Green” Detergents |
| title_sort | dispersion of carbon nanotubes with green detergents |
| topic | carbon nanotube green molecules natural detergents coconuts bamboo |
| url | https://www.mdpi.com/1420-3049/26/10/2908 |
| work_keys_str_mv | AT kazuoumemura dispersionofcarbonnanotubeswithgreendetergents AT ryohamano dispersionofcarbonnanotubeswithgreendetergents AT hiroakikomatsu dispersionofcarbonnanotubeswithgreendetergents AT takashiikuno dispersionofcarbonnanotubeswithgreendetergents AT ekosiswoyo dispersionofcarbonnanotubeswithgreendetergents |