2020 Fiscal Year Research-status Report
Multiscale simulation of reverse osmosis carbon nanotube-polyamide nanocomposite membranes
Project/Area Number |
19K12001
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Research Institution | Shinshu University |
Principal Investigator |
Cruz Rodolfo 信州大学, 先鋭領域融合研究群先鋭材料研究所, 特任教授 (30597878)
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Project Period (FY) |
2019-04-01 – 2022-03-31
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Keywords | desalination / water diffusion / molecular dynamics / hydration / polymer network |
Outline of Annual Research Achievements |
We will carry out experiments and contrast them with computational models to understand the diffusion of water into the nanocomposite membranes.We demonstrated that aromatic polyamide reinforced with TEMPO-oxidized crystalline cellulose nanofibers have better chlorine resistance, permeation, and antifouling compared to aromatic polyamide membranes.Molecular dynamics suggest that CNF reduce the polymer diffusion and increase the matrix hydrophilicity without affecting surface chemical composition of the membrane. Membrane morphology was observed by several techniques, such as electron and laser confocal microscopy. CNF shows great potential as a new nanoreinforcing material for nanocomposite aromatic polyamide membranes.
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Current Status of Research Progress |
Current Status of Research Progress
2: Research has progressed on the whole more than it was originally planned.
Reason
Last year the project was slightly disrupted by the COVID-19 emergency. We had to work from home for a short period of time in May 2020, however, I took advantage to learn new computational chemistry tools. After we returned to work it was difficult also to count with the support of students as the attendance of people was restricted. However, we focused on developing the project by means of computational physics and additional workstations were purchased. We have new and exciting results that will be published soon.
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Strategy for Future Research Activity |
In the final year we will continue as planned in the original proposal. We will carry out experiments and contrast them with computational models to understand the diffusion of water into the nanocomposite membranes. We are preparing a couple of papers based in CNT-PA and a critical review of the topic
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Causes of Carryover |
I am planning to buy one additional laptop. I expect by the end of the fiscal year, traveling are resumed and I can attend an international conference. The rest of the money will be used to buy experimental material for the laboratory and provide a scholarship for a student working as part time.
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Research Products
(2 results)
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[Journal Article] Nanocomposite desalination membranes made of aromatic polyamide with cellulose nanofibers: synthesis, performance, and water diffusion study2020
Author(s)
Rodolfo Cruz-Silva, Kazuo Izu , Jun Maeda, Shigeru Saito, Aaron Morelos-Gomez, Celia Aguilar, Yoshihiro Takizawa, Ayaka Yamanaka, Syogo Tejiima, Kazunori Fujisawa, Kenji Takeuchi, Takuya Hayashi, Toru Noguchi, Akira Isogai, Morinobu Endo
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Journal Title
Nanoscale
Volume: 38
Pages: 19628-19637
DOI
Peer Reviewed / Int'l Joint Research
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[Presentation] Synthesis and Characterization of Cellulose Nanofiber Reinforced Aromatic Polyamide Membranes2020
Author(s)
Rodolfo Cruz-Silva, Kazuo Izu, Jun Maeda, Shigeru Saito, Aaron Morelos-Gomez, Celia Aguilar, Yoshihiro Takizawa, Yamanaka Ayaka, Syogo Tejima, Kazunori Fujisawa, Kenji Takeuchi, Takuya Hayashi, Toru Noguchi, Akira Isogai, Morinobu Endo
Organizer
2020 Virtual MRS Spring/Fall Meeting & Exhibit, Boston USA
Int'l Joint Research