The Control of the Expansion or Compression of Colloidal Crystals Lattice with Salt Solution
Tuning the lattice spacing or stop bands holds great significance in the design and application of materials with colloidal crystals. Typically, particle surface modifications or the application of external physical fields are needed. In this study, we demonstrated the ability to expand or compress...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-02-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/14/4/355 |
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| author | Hongwei Zhou Wenze Ouyang Shuangyang Zou Shenghua Xu |
| author_facet | Hongwei Zhou Wenze Ouyang Shuangyang Zou Shenghua Xu |
| author_sort | Hongwei Zhou |
| collection | DOAJ |
| description | Tuning the lattice spacing or stop bands holds great significance in the design and application of materials with colloidal crystals. Typically, particle surface modifications or the application of external physical fields are needed. In this study, we demonstrated the ability to expand or compress the lattice of colloidal crystals simply by utilizing a salt solution, without the need for any special treatments to the colloidal particles. We found that by only considering the diffusiophoresis effect we cannot explain the reversion of lattice expansion to lattice compression with the increase in the salt concentration and that the diffusioosmotic flow originating from the container wall must be taken into account. Further analysis revealed that variations in the salt concentration altered the relative amplitudes between diffusiophoresis and diffusioosmosis through changing the zeta potentials of the particles and the wall, and the competition between the particle diffusiophoresis and wall diffusioosmosis lay at the center of the underlying mechanism. |
| first_indexed | 2024-03-07T22:19:21Z |
| format | Article |
| id | doaj.art-cd033c88e56141218c0a1464640caec3 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-07T22:19:21Z |
| publishDate | 2024-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-cd033c88e56141218c0a1464640caec32024-02-23T15:29:25ZengMDPI AGNanomaterials2079-49912024-02-0114435510.3390/nano14040355The Control of the Expansion or Compression of Colloidal Crystals Lattice with Salt SolutionHongwei Zhou0Wenze Ouyang1Shuangyang Zou2Shenghua Xu3Key Laboratory of Microgravity, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, ChinaKey Laboratory of Microgravity, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, ChinaKey Laboratory of Microgravity, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, ChinaKey Laboratory of Microgravity, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, ChinaTuning the lattice spacing or stop bands holds great significance in the design and application of materials with colloidal crystals. Typically, particle surface modifications or the application of external physical fields are needed. In this study, we demonstrated the ability to expand or compress the lattice of colloidal crystals simply by utilizing a salt solution, without the need for any special treatments to the colloidal particles. We found that by only considering the diffusiophoresis effect we cannot explain the reversion of lattice expansion to lattice compression with the increase in the salt concentration and that the diffusioosmotic flow originating from the container wall must be taken into account. Further analysis revealed that variations in the salt concentration altered the relative amplitudes between diffusiophoresis and diffusioosmosis through changing the zeta potentials of the particles and the wall, and the competition between the particle diffusiophoresis and wall diffusioosmosis lay at the center of the underlying mechanism.https://www.mdpi.com/2079-4991/14/4/355colloidal crystalslattice spacingdiffusiophoresisdiffusioosmosis |
| spellingShingle | Hongwei Zhou Wenze Ouyang Shuangyang Zou Shenghua Xu The Control of the Expansion or Compression of Colloidal Crystals Lattice with Salt Solution Nanomaterials colloidal crystals lattice spacing diffusiophoresis diffusioosmosis |
| title | The Control of the Expansion or Compression of Colloidal Crystals Lattice with Salt Solution |
| title_full | The Control of the Expansion or Compression of Colloidal Crystals Lattice with Salt Solution |
| title_fullStr | The Control of the Expansion or Compression of Colloidal Crystals Lattice with Salt Solution |
| title_full_unstemmed | The Control of the Expansion or Compression of Colloidal Crystals Lattice with Salt Solution |
| title_short | The Control of the Expansion or Compression of Colloidal Crystals Lattice with Salt Solution |
| title_sort | control of the expansion or compression of colloidal crystals lattice with salt solution |
| topic | colloidal crystals lattice spacing diffusiophoresis diffusioosmosis |
| url | https://www.mdpi.com/2079-4991/14/4/355 |
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