Chitosan-Graft-Poly(acrylic acid) Superabsorbent’s Water Holding in Sandy Soils and Its Application in Agriculture
Sandy soil has a low ability to absorb and store low water, low nutrient content, and a high water evaporation rate, so it is not suitable to be used as agricultural land. Superabsorbents can be used to overcome these weaknesses. The purpose of this study was to measure the abilities of the superabs...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-11-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/14/23/5175 |
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| author | Jayanudin Retno S. D. Lestari Dhena Ria Barleany Alia Badra Pitaloka Meri Yulvianti Dimas Prasetyo Dendy Vito Anggoro Adam Ruhiatna |
| author_facet | Jayanudin Retno S. D. Lestari Dhena Ria Barleany Alia Badra Pitaloka Meri Yulvianti Dimas Prasetyo Dendy Vito Anggoro Adam Ruhiatna |
| author_sort | Jayanudin |
| collection | DOAJ |
| description | Sandy soil has a low ability to absorb and store low water, low nutrient content, and a high water evaporation rate, so it is not suitable to be used as agricultural land. Superabsorbents can be used to overcome these weaknesses. The purpose of this study was to measure the abilities of the superabsorbents, including water holding, swelling, and water retention of sandy soil enriched with superabsorbent, and to analyze the chitosan-graft-poly(acrylic acid) superabsorbent characteristics. The superabsorbent was prepared by mixing a chitosan solution with ammonium persulfate as an initiator and acrylic acid, which had been neutralized with KOH. Then, the mixture was cross-linked with <i>N</i>,<i>N</i>′-methylenebisacrylamide (MBA). The resulting superabsorbent gel was dried in an oven and then crushed for analysis. The results showed that an increase in chitosan concentration increased the gel fraction, swelling, reusability, and water holding. Meanwhile, an increase in chitosan concentration decreased water retention in sandy soils. The swelling kinetics can be predicted using the pseudo-second-order model with high accuracy (R<sup>2</sup> value of 0.99). |
| first_indexed | 2024-03-09T17:35:21Z |
| format | Article |
| id | doaj.art-f92f9400171248089c4ec02f0adce162 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-09T17:35:21Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-f92f9400171248089c4ec02f0adce1622023-11-24T11:59:44ZengMDPI AGPolymers2073-43602022-11-011423517510.3390/polym14235175Chitosan-Graft-Poly(acrylic acid) Superabsorbent’s Water Holding in Sandy Soils and Its Application in AgricultureJayanudin0Retno S. D. Lestari1Dhena Ria Barleany2Alia Badra Pitaloka3Meri Yulvianti4Dimas Prasetyo5Dendy Vito Anggoro6Adam Ruhiatna7Chemical Engineering Department, Universitas Sultan Ageng Tirtayasa, Jalan Jenderal Sudirman km. 3, Cilegon 42435, IndonesiaChemical Engineering Department, Universitas Sultan Ageng Tirtayasa, Jalan Jenderal Sudirman km. 3, Cilegon 42435, IndonesiaChemical Engineering Department, Universitas Sultan Ageng Tirtayasa, Jalan Jenderal Sudirman km. 3, Cilegon 42435, IndonesiaChemical Engineering Department, Universitas Sultan Ageng Tirtayasa, Jalan Jenderal Sudirman km. 3, Cilegon 42435, IndonesiaChemical Engineering Department, Universitas Sultan Ageng Tirtayasa, Jalan Jenderal Sudirman km. 3, Cilegon 42435, IndonesiaChemical Engineering Department, Universitas Sultan Ageng Tirtayasa, Jalan Jenderal Sudirman km. 3, Cilegon 42435, IndonesiaChemical Engineering Department, Universitas Sultan Ageng Tirtayasa, Jalan Jenderal Sudirman km. 3, Cilegon 42435, IndonesiaChemical Engineering Department, Universitas Sultan Ageng Tirtayasa, Jalan Jenderal Sudirman km. 3, Cilegon 42435, IndonesiaSandy soil has a low ability to absorb and store low water, low nutrient content, and a high water evaporation rate, so it is not suitable to be used as agricultural land. Superabsorbents can be used to overcome these weaknesses. The purpose of this study was to measure the abilities of the superabsorbents, including water holding, swelling, and water retention of sandy soil enriched with superabsorbent, and to analyze the chitosan-graft-poly(acrylic acid) superabsorbent characteristics. The superabsorbent was prepared by mixing a chitosan solution with ammonium persulfate as an initiator and acrylic acid, which had been neutralized with KOH. Then, the mixture was cross-linked with <i>N</i>,<i>N</i>′-methylenebisacrylamide (MBA). The resulting superabsorbent gel was dried in an oven and then crushed for analysis. The results showed that an increase in chitosan concentration increased the gel fraction, swelling, reusability, and water holding. Meanwhile, an increase in chitosan concentration decreased water retention in sandy soils. The swelling kinetics can be predicted using the pseudo-second-order model with high accuracy (R<sup>2</sup> value of 0.99).https://www.mdpi.com/2073-4360/14/23/5175superabsorbent polymerreusabilitywater holdingwater retention |
| spellingShingle | Jayanudin Retno S. D. Lestari Dhena Ria Barleany Alia Badra Pitaloka Meri Yulvianti Dimas Prasetyo Dendy Vito Anggoro Adam Ruhiatna Chitosan-Graft-Poly(acrylic acid) Superabsorbent’s Water Holding in Sandy Soils and Its Application in Agriculture Polymers superabsorbent polymer reusability water holding water retention |
| title | Chitosan-Graft-Poly(acrylic acid) Superabsorbent’s Water Holding in Sandy Soils and Its Application in Agriculture |
| title_full | Chitosan-Graft-Poly(acrylic acid) Superabsorbent’s Water Holding in Sandy Soils and Its Application in Agriculture |
| title_fullStr | Chitosan-Graft-Poly(acrylic acid) Superabsorbent’s Water Holding in Sandy Soils and Its Application in Agriculture |
| title_full_unstemmed | Chitosan-Graft-Poly(acrylic acid) Superabsorbent’s Water Holding in Sandy Soils and Its Application in Agriculture |
| title_short | Chitosan-Graft-Poly(acrylic acid) Superabsorbent’s Water Holding in Sandy Soils and Its Application in Agriculture |
| title_sort | chitosan graft poly acrylic acid superabsorbent s water holding in sandy soils and its application in agriculture |
| topic | superabsorbent polymer reusability water holding water retention |
| url | https://www.mdpi.com/2073-4360/14/23/5175 |
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