I.A.KARIMOV

tabiiy gil minerallari, nanog‘ovakli materiallar, qatlamli silikatlar, selektiv eritish, kalsinatsiya, termik aktivatsiya, g‘ovak tuzilma, solishtirma sirt maydoni, adsorbsiya, fizik-kimyoviy xossalar.

Ushbu bobda turli xil gil minerallari asosida nanog‘ovakli materiallarni sintez qilish usullari, ularning hosil bo‘lish mexanizmlari hamda fizik-kimyoviy xossalari tahlil qilingan. Nanog‘ovakli materiallar selektiv eritish usuli yordamida olinib, bunda gil minerallarining qatlamli kristall tuzilishi va tarkibiy komponentlarining turli eruvchanlik darajasidan samarali foydalaniladi. Gil minerallarining 1:1 va 2:1 tipdagi qatlamli silikat tuzilmalari hamda amorf fazalari nanog‘ovakli tuzilmalarni shakllantirish uchun muhim strukturaviy asos bo‘lib xizmat qiladi. Tadqiqotlarda selektiv eritish jarayonining harorat, muhit kislotaliligi va dastlabki aktivatsiya sharoitlariga bog‘liqligi o‘rganilgan. Aniqlanishicha, minerallarni oldindan amorf holatga o‘tkazish selektiv eritish samaradorligini oshirib, yuqori solishtirma sirt maydoni va rivojlangan g‘ovak tuzilishga ega materiallar hosil bo‘lishiga imkon yaratadi. Olingan natijalar turli gil minerallari asosida sintez qilingan nanog‘ovakli materiallarning strukturaviy va adsorbsion xossalari boshlang‘ich mineralning kristall tuzilishi hamda kimyoviy tarkibiga bevosita bog‘liq ekanligini ko‘rsatdi. Ushbu materiallar adsorbentlar, katalizator tashuvchilar va funksional nanomateriallar sifatida qo‘llash uchun istiqbolli xususiyatlarga ega.

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