Preparation of a Mesoporous Ceramic Adsorbent Based on Iranian Domestic Kaolin to Utilize as Slow-Release Urea Fertilizer Medium
Overusing nitrogen fertilizer causes some serious problems for water resources, soil, and agriculture products. Researchers have been trying to develop effective means which may use less amount of fertilizers containing nitrogen. In this work, cost-effective ceramic granule adsorbent was prepared to...
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| Format: | Article |
| Language: | English |
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Iran University of Science & Technology
2020-06-01
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| Series: | Iranian Journal of Materials Science and Engineering |
| Subjects: | |
| Online Access: | http://ijmse.iust.ac.ir/article-1-1622-en.html |
| _version_ | 1818403152599187456 |
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| author | S.M. Moussavi Janbesarayi M. Mohebi S. Baghshahi S.A. Ahmad Alem E. Irom |
| author_facet | S.M. Moussavi Janbesarayi M. Mohebi S. Baghshahi S.A. Ahmad Alem E. Irom |
| author_sort | S.M. Moussavi Janbesarayi |
| collection | DOAJ |
| description | Overusing nitrogen fertilizer causes some serious problems for water resources, soil, and agriculture products. Researchers have been trying to develop effective means which may use less amount of fertilizers containing nitrogen. In this work, cost-effective ceramic granule adsorbent was prepared to be used as a fertilizer carrier of controlled release behavior. A mixture of 70 wt.% domestic kaolin and 30 wt.% gibbsite was used to produce the granules. By utilizing thermal analysis of raw granule, the calcination temperatures were obtained and the effect of various calcination temperatures of 500, 600, and 700˚C on the water adsorption was studied. The characteristics of granules were investigated by XRD, BET, FTIR, and SEM analyses. The results showed that by increasing the calcination temperature, the crystal structure of the granules was transformed into a dehydrated form and by calcination at 600°C the specific surface area of granules increased from 7.50 to 53.45m2/g. The granules were soaked in a 500g/lit solution of urea, where they adsorbed about 10wt.% urea. The dried urea-loaded granules were placed in water where the release of urea was measured by UV-vis spectrophotometry. Finally, different portions of urea-loaded granules were evaluated as fertilizer in the growing bed of corn plant where the height and the stem diameter of samples were compared with a control sample as well as a sample fertilized by urea directly. The results showed that by using the loaded granules, the urea consumption can be reduced by 50%. |
| first_indexed | 2024-12-14T08:19:43Z |
| format | Article |
| id | doaj.art-a2bca47404794a6ca4cc81a90b6550f5 |
| institution | Directory Open Access Journal |
| issn | 1735-0808 2383-3882 |
| language | English |
| last_indexed | 2024-12-14T08:19:43Z |
| publishDate | 2020-06-01 |
| publisher | Iran University of Science & Technology |
| record_format | Article |
| series | Iranian Journal of Materials Science and Engineering |
| spelling | doaj.art-a2bca47404794a6ca4cc81a90b6550f52022-12-21T23:09:50ZengIran University of Science & TechnologyIranian Journal of Materials Science and Engineering1735-08082383-38822020-06-011723038Preparation of a Mesoporous Ceramic Adsorbent Based on Iranian Domestic Kaolin to Utilize as Slow-Release Urea Fertilizer MediumS.M. Moussavi Janbesarayi0M. Mohebi1S. Baghshahi2S.A. Ahmad Alem3E. Irom4 Department of Materials Science and Engineering, Faculty of Engineering, Imam Khomeini International University (IKIU), Qazvin, Iran Department of Materials Science and Engineering, Faculty of Engineering, Imam Khomeini International University (IKIU), Qazvin, Iran Department of Materials Science and Engineering, Faculty of Engineering, Imam Khomeini International University (IKIU), Qazvin, Iran Department of Chemistry, Materials and Chemical Engineering Department of Ceramic, Materials and Energy Research Center (MERC), Alborz, Iran Overusing nitrogen fertilizer causes some serious problems for water resources, soil, and agriculture products. Researchers have been trying to develop effective means which may use less amount of fertilizers containing nitrogen. In this work, cost-effective ceramic granule adsorbent was prepared to be used as a fertilizer carrier of controlled release behavior. A mixture of 70 wt.% domestic kaolin and 30 wt.% gibbsite was used to produce the granules. By utilizing thermal analysis of raw granule, the calcination temperatures were obtained and the effect of various calcination temperatures of 500, 600, and 700˚C on the water adsorption was studied. The characteristics of granules were investigated by XRD, BET, FTIR, and SEM analyses. The results showed that by increasing the calcination temperature, the crystal structure of the granules was transformed into a dehydrated form and by calcination at 600°C the specific surface area of granules increased from 7.50 to 53.45m2/g. The granules were soaked in a 500g/lit solution of urea, where they adsorbed about 10wt.% urea. The dried urea-loaded granules were placed in water where the release of urea was measured by UV-vis spectrophotometry. Finally, different portions of urea-loaded granules were evaluated as fertilizer in the growing bed of corn plant where the height and the stem diameter of samples were compared with a control sample as well as a sample fertilized by urea directly. The results showed that by using the loaded granules, the urea consumption can be reduced by 50%.http://ijmse.iust.ac.ir/article-1-1622-en.htmlceramic adsorbentclaygibbsitenitrogen fertilizercalcinationslow-release fertilizer |
| spellingShingle | S.M. Moussavi Janbesarayi M. Mohebi S. Baghshahi S.A. Ahmad Alem E. Irom Preparation of a Mesoporous Ceramic Adsorbent Based on Iranian Domestic Kaolin to Utilize as Slow-Release Urea Fertilizer Medium Iranian Journal of Materials Science and Engineering ceramic adsorbent clay gibbsite nitrogen fertilizer calcination slow-release fertilizer |
| title | Preparation of a Mesoporous Ceramic Adsorbent Based on Iranian Domestic Kaolin to Utilize as Slow-Release Urea Fertilizer Medium |
| title_full | Preparation of a Mesoporous Ceramic Adsorbent Based on Iranian Domestic Kaolin to Utilize as Slow-Release Urea Fertilizer Medium |
| title_fullStr | Preparation of a Mesoporous Ceramic Adsorbent Based on Iranian Domestic Kaolin to Utilize as Slow-Release Urea Fertilizer Medium |
| title_full_unstemmed | Preparation of a Mesoporous Ceramic Adsorbent Based on Iranian Domestic Kaolin to Utilize as Slow-Release Urea Fertilizer Medium |
| title_short | Preparation of a Mesoporous Ceramic Adsorbent Based on Iranian Domestic Kaolin to Utilize as Slow-Release Urea Fertilizer Medium |
| title_sort | preparation of a mesoporous ceramic adsorbent based on iranian domestic kaolin to utilize as slow release urea fertilizer medium |
| topic | ceramic adsorbent clay gibbsite nitrogen fertilizer calcination slow-release fertilizer |
| url | http://ijmse.iust.ac.ir/article-1-1622-en.html |
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