Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.1016/j.jece.2024.112031 |
| Bio-based superabsorbent hydrogels for nutrient release | |
| Ribeiro, Alessandra B.; Moreira, Helena; Pereira, Sofia I. A.; Godinho, Mariana; Sousa, Ana Sofia da Silva; Castro, Paula; Pereira, Carla F.; Casanova, Francisca; Freixo, Ricardo; Pintado, Manuela E.; Ramos, Oscar L. | |
| 通讯作者 | Ribeiro, AB |
| 来源期刊 | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
 |
| ISSN | 2213-2929 |
| EISSN | 2213-3437 |
| 出版年 | 2024 |
| 卷号 | 12期号:2 |
| 英文摘要 | Drought is characterized by a low water precipitation rate, with strong impact on crop productivity, threatening global food production. In this context, the use of soil amendments, such as superabsorbent hydrogels constitute a potential technology for better water use efficiency and higher crop yields. In this work, we synthesised cellulose -based hydrogels, characterized their physical and functional properties, evaluated their impact on the environment, and their potential to be used as a soil amendments. The hydrogel showed pH of 6.0 to 7.5 and conductivity below 10.0 mu S cm -1. The Fourier -transform infrared spectroscopy (FTIR) showed a low intensity peak in the crystallinity region, which was supported by the low crystallinity index (27.3% +/- 0.6) verified by Powder X-ray diffraction (PXRD) analysis. The swelling capacity reached more than 200 g of water, the hydrogel showed good resistance to osmotic pressure and high thermostability, which favours the application in hot and arid areas. In addition, no potentially hazardous compound was detected, nor was there any adverse effect on soil microorganisms. Further, the hydrogel was found to be safe for use during seed sowing and for promoting seedling development. In the greenhouse pot experiment, the hydrogels showed a significant increase in maize shoot and root biomass, demonstrating their ability to contribute to the overall water holding capacity of the soil, thereby influencing nutrient availability for more efficient plant growth. In conclusion, the superabsorbent hydrogel exhibited promising characteristics for use as a soil amendment, scalability potential and constitutes a sustainable alternative for agricultural applications. |
| 英文关键词 | Nutrient release Biopolymers Crop production soil amendment Drought Bio-based materials Delivery systems |
| 类型 | Article |
| 语种 | 英语 |
| 收录类别 | SCI-E |
| WOS记录号 | WOS:001176204900001 |
| WOS关键词 | CELLULOSE HYDROGELS ; POLYMER ; WATER ; BEHAVIORS ; GROWTH |
| WOS类目 | Engineering, Environmental ; Engineering, Chemical |
| WOS研究方向 | Engineering |
| 资源类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/404436 |
| 推荐引用方式 GB/T 7714 | Ribeiro, Alessandra B.,Moreira, Helena,Pereira, Sofia I. A.,et al. Bio-based superabsorbent hydrogels for nutrient release[J],2024,12(2). |
| APA | Ribeiro, Alessandra B..,Moreira, Helena.,Pereira, Sofia I. A..,Godinho, Mariana.,Sousa, Ana Sofia da Silva.,...&Ramos, Oscar L..(2024).Bio-based superabsorbent hydrogels for nutrient release.JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING,12(2). |
| MLA | Ribeiro, Alessandra B.,et al."Bio-based superabsorbent hydrogels for nutrient release".JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING 12.2(2024). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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