Abstract
The work proposes new hybrid powder materials as sediment-converting reagents used in geoengineering technologies (technologies for artificial precipitation management). Hybrid powder materials AgI-SiO2 are mesophase mesoporous silicon dioxide with silver iodide. They were obtained through the “Paste Formation” process, which involves constant mixing of an aqueous condensed suspension of silicon dioxide of various types with the sequential addition of silver nitrate and potassium iodide. The characteristic features of the synthesized AgI-SiO2 hybrids were studied using instrumental methods of analysis: structural, textural and rheological parameters. The influence of hybrid powder material AgI-SiO2 (HPs) on the efficiency of anti-hail rocket fuel is shown using the TERRA software system for modeling phase and chemical equilibrium at high temperatures. It is certain that using HPs AgI-SiO2 as part of anti-hail rocket fuel leads to an increase in the amount of condensed phase, including active forms of silver iodide. This active form of AgI is required for the implementation of ice formation processes in the cloud. An increase in the amount of the β-form of AgI in the composition of the initial HPs was shown compared to pure silver iodide using X-ray phase (XRF) analysis and differential scanning calorimetry. It was established that silver iodide in the hybrid has greater thermal stability, as evidenced by the characteristic peaks of crystalline forms. HPs AgI-SiO2 will improve the efficiency of anti-hail rocket fuel by increasing the number of ice formation and condensation centers, because they exhibit several mechanisms of action on atmospheric moisture. The synthesized hybrid powders meet the requirements of the regulatory documents in force in the Russian Federation
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