This study presents the synthesis of silica gel under laboratory conditions using the sol–gel method based on sodium silicate (Na₂SiO₃) and sulfuric acid (H₂SO₄), along with a comprehensive investigation of its physicochemical properties. The synthesis process included gel formation, aging, washing, and controlled drying under different regimes to evaluate their influence on the material characteristics.Thermal behavior and stability of the obtained samples were analyzed using DTA–TGA methods. The results revealed that mass loss in the temperature range of 40–150 °C corresponds to the removal of physically adsorbed water. Sample 2.2 Y demonstrated a higher moisture adsorption capacity (14.49%) and more developed porous structure, whereas sample 2.1 Y exhibited superior thermal stability due to the presence of structurally bound hydroxyl groups.BET analysis showed that the synthesized silica gel possesses a specific surface area of 203.7 m²/g and a total pore volume of 0.21 cm³/g. The pore size distribution is predominantly within the range of 1.7–2.0 nm, indicating a mesoporous structure. Additionally, the presence of micropores was confirmed by t-method and HK analysis, contributing to enhanced adsorption propertiesThe obtained results demonstrate that the synthesized silica gel has a well-developed porous structure and can be effectively applied as an adsorbent and desiccant material in various industrial processes.
This study investigated the relationship between music listening purposes and emotional well-being among undergraduate students. A survey was administered to 50 undergraduate students aged 18 to 22 from several universities in Urgench, Uzbekistan. Participants reported their main purposes for listening to music, how fr…
Journal of Universal Science Research14.09.2026171
Ushbu maqolada oilaviy muhitning bola shaxsiy rivojlanishiga psixologik ta’siri nazariy va amaliy jihatdan tahlil qilinadi. Oiladagi emotsional iqlim, ota-ona tarbiya uslubi, bog‘lanish sifati, muloqot madaniyati, talab va nazoratning muvozanati, oilaviy konfliktlar, ota-onaning psixologik holati hamda bolaga ko‘rsatil…
Journal of Universal Science Research14.09.2026100
Mazkur maqolada talabalarda kasbiy motivatsiyani shakllantirishning psixologik xususiyatlari nazariy va amaliy jihatdan tahlil qilinadi. Kasbiy motivatsiya shaxsning tanlagan kasbiga nisbatan barqaror qiziqishi, kasbiy maqsadlarni anglash, faoliyat mazmunini shaxsiy qadriyatlar bilan bog‘lash, o‘z imkoniyatlariga ishon…
Maqolada ijtimoiy tarmoqlardan foydalanishning o‘smirlar ruhiy holatiga ta’siri psixologik, ijtimoiy va xulq-atvor mexanizmlari nuqtai nazaridan tahlil qilinadi. O‘smirlik davrida tengdoshlar bahosi, ijtimoiy qabul qilinish, o‘zlikni izlash va emotsional barqarorlikka ehtiyoj kuchli bo‘lgani sababli raqamli muhitning t…
Ushbu maqolada yoshlarning o‘z-o‘zini baholashi va ijtimoiy faolligi o‘rtasidagi psixologik bog‘liqlik nazariy va amaliy nuqtai nazardan tahlil qilinadi. O‘zo‘zini baholash shaxsning o‘z imkoniyatlari, qadr-qimmati, kompetentligi va ijtimoiy maqomini subyektiv baholash tizimi sifatida ko‘rib chiqiladi. Ijtimoiy faolli…
ResearcherUz