PREPARATION AND SPECTROSCOPIC CHARACTERIZATION OF DIFFERENT GLASS FERTILIZERS
| Main Author: | Biswajit Mandal1, Goutam*2 & Tanmoy Das3 |
|---|---|
| Format: | Article Journal |
| Terbitan: |
, 2019
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/2630905 |
Daftar Isi:
- Glasses in the phosphate system acting as slow release fertilizer were synthesized by melt- quenching technique. A new glass-material was prepared, which can be used as slowly soluble fertilizer for different type of plants. Glasses were melting at the temperature (800 – 950°C) with a soaking period of 1hr. which was earlier reported to be melted not below 10000c. Leaching study of these glasses with a maximum time period of 300 hrs. were conducted under Soxhlet distillation condition with distilled water. Fourier transform infrared (FTIR) spectra was recorded in the 400-4000 cm-1 range, revealed optical phonons specification for the phosphate matrix. FTIR studies show absorptions at 760, 879, 920, 1087, 1110, ~ 2193-2870 cm-1, and ~3440-3500cm-1. 57Fe Mossbauer spectroscopy studies were presented. Mössbauer studies were done in order to analyze their structure. Amorphous nature of glass was confirmed by XRD (X-ray diffraction).The morphology of glass materials was analyzed by Scanning Electron Microscopy. SEM of some selected glasses were presented. X-ray Fluorescence (XRF) technique is used for elemental analysis and chemical analysis. The effect of different modifier ions like Na+, Fe3+, Mg2+, Ca2+, and K+ in the basic phosphate networks on melting’s and time of melting has been found to be evident. The model structure of glasses has been considered taking the role of some glass formers/ modifiers which ultimately has an effect on the chemical durability of these glasses. For GF (glass fertilizer) minimum solubility was measured for the sample containing Iron Oxide (Fe2O3) and maximum solubility for base sample and from GF (glass fertilizer) maximum solubility appeared for the sample with molybdenum oxide. The results of the experiments reported here demonstrate that is possible to adjust the release of phosphate from the fertilizer to phosphate demand of the plant.