Elucidating the Role of Graphene Oxide Surface Architecture and Properties in Loess Soil Remediation Efficacy
Loess Plateau is the region with the most concentrated loess distribution and the deepest loess soil layer in the world, and it is facing serious problems of soil erosion and ecological degradation. The nano carbon modification of soil surface properties is a novel strategy for soil improvement and...
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MDPI AG
2025-07-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/15/14/1098 |
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| author | Zirui Wang Haotian Lu Zhigang Li Yuwei Wu Junping Ren |
| author_facet | Zirui Wang Haotian Lu Zhigang Li Yuwei Wu Junping Ren |
| author_sort | Zirui Wang |
| collection | DOAJ |
| description | Loess Plateau is the region with the most concentrated loess distribution and the deepest loess soil layer in the world, and it is facing serious problems of soil erosion and ecological degradation. The nano carbon modification of soil surface properties is a novel strategy for soil improvement and enhancing the soil’s capacity to sequester carbon, which has been extensively researched. However, the mechanisms underlying the influence of carbon surface structure on the efficacy of loess soil remediation remain unclear. Herein, graphene oxide (GO) with a unique two-dimensional structure and adjustable surface properties was optimized as a model carbon filler to investigate the modification effect on loess. As a result, the addition amount of 0.03% GO significantly reduced the disintegration amount of loess, but, if inhibited for a long time, the disintegration effect would weaken. The highly reduced GO can delay the loess disintegration rate due to its enhanced hydrophobicity, but the inhibitory effect fails over a long period of time. After adjusting the reduce degree with a 50% SA (sodium ascorbate), the water-holding capacity of the modified soil in the high suction range is enhanced. This study reveals the synergistic mechanism of the sheet structure and surface properties of GO on the water stability of loess, providing a reference for the prevention and control of soil erosion and ecological restoration in the Loess Plateau. |
| format | Article |
| id | doaj-art-13d70607c8ff40f88fe416f96d09096f |
| institution | Kabale University |
| issn | 2079-4991 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj-art-13d70607c8ff40f88fe416f96d09096f2025-08-20T03:32:16ZengMDPI AGNanomaterials2079-49912025-07-011514109810.3390/nano15141098Elucidating the Role of Graphene Oxide Surface Architecture and Properties in Loess Soil Remediation EfficacyZirui Wang0Haotian Lu1Zhigang Li2Yuwei Wu3Junping Ren4School of Tropical Agriculture and Forestry, Hainan University, Haikou 570228, ChinaCollege of Civil Engineering and Mechanics, Lanzhou University, Lanzhou 730000, ChinaSchool of Tropical Agriculture and Forestry, Hainan University, Haikou 570228, ChinaSchool of Civil and Architectural Engineering, Hainan University, Haikou 570228, ChinaCollege of Civil Engineering and Mechanics, Lanzhou University, Lanzhou 730000, ChinaLoess Plateau is the region with the most concentrated loess distribution and the deepest loess soil layer in the world, and it is facing serious problems of soil erosion and ecological degradation. The nano carbon modification of soil surface properties is a novel strategy for soil improvement and enhancing the soil’s capacity to sequester carbon, which has been extensively researched. However, the mechanisms underlying the influence of carbon surface structure on the efficacy of loess soil remediation remain unclear. Herein, graphene oxide (GO) with a unique two-dimensional structure and adjustable surface properties was optimized as a model carbon filler to investigate the modification effect on loess. As a result, the addition amount of 0.03% GO significantly reduced the disintegration amount of loess, but, if inhibited for a long time, the disintegration effect would weaken. The highly reduced GO can delay the loess disintegration rate due to its enhanced hydrophobicity, but the inhibitory effect fails over a long period of time. After adjusting the reduce degree with a 50% SA (sodium ascorbate), the water-holding capacity of the modified soil in the high suction range is enhanced. This study reveals the synergistic mechanism of the sheet structure and surface properties of GO on the water stability of loess, providing a reference for the prevention and control of soil erosion and ecological restoration in the Loess Plateau.https://www.mdpi.com/2079-4991/15/14/1098graphene oxideLanzhou loessdisintegration experimentsoil-water characteristic curve |
| spellingShingle | Zirui Wang Haotian Lu Zhigang Li Yuwei Wu Junping Ren Elucidating the Role of Graphene Oxide Surface Architecture and Properties in Loess Soil Remediation Efficacy Nanomaterials graphene oxide Lanzhou loess disintegration experiment soil-water characteristic curve |
| title | Elucidating the Role of Graphene Oxide Surface Architecture and Properties in Loess Soil Remediation Efficacy |
| title_full | Elucidating the Role of Graphene Oxide Surface Architecture and Properties in Loess Soil Remediation Efficacy |
| title_fullStr | Elucidating the Role of Graphene Oxide Surface Architecture and Properties in Loess Soil Remediation Efficacy |
| title_full_unstemmed | Elucidating the Role of Graphene Oxide Surface Architecture and Properties in Loess Soil Remediation Efficacy |
| title_short | Elucidating the Role of Graphene Oxide Surface Architecture and Properties in Loess Soil Remediation Efficacy |
| title_sort | elucidating the role of graphene oxide surface architecture and properties in loess soil remediation efficacy |
| topic | graphene oxide Lanzhou loess disintegration experiment soil-water characteristic curve |
| url | https://www.mdpi.com/2079-4991/15/14/1098 |
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