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POLIMER MATRIТSA ASOSIDAGI QАTTIQ EKSTRАGENTLАRDА MIS (II) IONLARI SORBTSIYASI KINETIKASINI O'RGANISH

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MAQOLA ANNOTATSIYASI

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Muammoning kelib chiqishi. Sorbtsiya jarayonida muvozanatga erishish tezligi har qanday sorbentning amaliy va nazariy ahamiyatga ega bo'lgan asosiy xususiyatidir. Kinetik ma'lumotlarga asoslanib sorbent-tuz eritmasi sistemasida muvozanatni o'rnatish uchun zarur bo'lgan vaqtni topish mumkin. Diffuziya va kimyoviy kinetika yordamida tajriba natijalarini nazariy qayta ishlash sorbtsiya jarayoni haqida xulosalar chiqarishga, shuningdek sorbtsiya jarayonlarining ba'zi amaliy muammolarini hal qilishda ishlatilishi mumkin bo'lgan limitlovchi bosqichlarini aniqlashga imkon beradi. Tadqiqot maqsadi. 2-amino-1-metilbenzimidazol, ditizon va benzogidroksam kislotalarni saqlagan impregnirlangan sorbentlarda suvli eritmalardan mis (II) ionlari sorbtsiyasining kinetik xususiyatlarini o'rganish. Metodologiya. Mis (II) ionlarining sorbtsiya kinetikasi statik rejimda o'rganildi. pH qiymatlari A-121 ionomeri yordamida nazorat qilindi. Mis (II) ionlarining konsentratsiyasi atom-absorpsion spektroskopiya usulida aniqlandi (Aanalyst-800 PerkinElmer, AQSh). Qo’llanilgan modellarning parametr qiymatlarini aniqlash uchun Origin Lab Pro matematik to'plami yordamida minimallashtirish jarayoni amalga oshirildi. Sorbentlarning rentgenogrammalari СuKα-nurlanishli XRD SMARTLAB diffraktometrida (Rigaku, Yaponiya) qayd etildi. Ilmiy yangilik. Ilk bor organik reagentlar bilan impregnirlangan MN202 (Purolite) asosidagi qattiq ekstraktlarda Cu2+ ionlarining sorbtsiya kinetikasi o'rganildi. Impregnant yuzasidagi kimyoviy reaktsiyaning kinetik parametrlari aniqlanadi. Olingan natijalar. 2-amino-1-metilbenzimidazol, ditizon va benzogidroksam kislota saqlagan impregnirlangan sorbentlar yordamida Cu2+ ionlari sorbtsiyasinig mexanizmi o'rganildi. Eritma va sorbentlar o'rtasidagi Cu2+ ionlarining muvozanati sorbsiya boshlanganidan keyin bir soat ichida o'rnatilishi aniqlandi. Integral kinetik sorbsiya egri chiziqlarini qayta ishlash asosida, sorbtsiya jarayoni ikkinchi darajali modellarga muvofiq davom etishi aniqlandi. Kimyoviy kinetika modellaridan foydalanish Cu2+ ionlarining sorbentning funktsional guruhlari bilan kimyoviy o'zaro ta'siri bosqichi jarayonning umumiy tezligiga ham hissa qo'shishini ko'rsatdi. Xususiyatlari: - mis ionlarining impregnirlangan S, N-guruhlar bilan sorbtsiyasi o'rganildi; - sorbtsiyaning kinetik parametrlari aniqlandi; - sorbtsiya jarayoni tezligi ikkinchi tartibli kinetik modelga bo'ysunishi aniqlandi.

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# сорбция# кинетика# kinetics# sorption# медь# kinetika# импрегнант# impregnant# Copper# mis# sorbtsiya# твёрдый экстрагент# qattiq ekstragent# solid extragent

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