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POLIMER SORBENT MN202 VА IMPREGNIRLАNGАN QАTTIQ EKSTRАGENTLАRDА MIS (II) IONLАRI SORBTSIYASI

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MAQOLA ANNOTATSIYASI

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Muammoning kelib chiqishi. Atrof-muhit ob'ektlaridaog'i rmetallar tarkibini ularning ruxsat etilgan maksimal kontsentratsiyasi darajasida monitoring qilish muhim ekologik vazifa hisoblanadi. Keng qo'llaniladigan fizik-kimyoviy usullar namuna tarkibining aniqlash natijalariga ta'siri, shuningdek aniqlangan elementlarning past konsentratsiyasi tufayli ushbu muammoni har doim ham to'g'ridan-to'g'ri hal qilishni ta'minlamaydi. Ushbu talablarga ayniqsa murakkab tarkibli eritmalardan elementlarni kontsentirlashda selektivlik va samaralilikni ta'minlovchi komplekc hosil qiluvchi sorbentlardan foydalanish bilan boradigan sorbsion usullar javob beradi. Shu munosabat bilan yuqori selektiv kompleks hosil qiluvchi sorbentlarni izlash va maqsadli sintez qilish dolzarb vazifa hisoblanadi. Tadqiqot maqsadi 2-amino-1-metilbenzimidazol, ditizon va benzogidroksam kislota bilan impregnirlangan polimer matritsaga (MN202) misning sorbsiyasini o'rganish. Metodologiya. Mis (II) ionlarining sorbsiyasi statik rejimda o'rganildi. pH qiymatlari A-121 ionomeri yordamida nazorat qilindi. Mikrostrukturasi elektron mikroskop yordamida energiya dispersli tahlili bilan birga o'rganildi. Mis (II) ionlarining konsentratsiyasi atom-absorpsion spektroskopiya usulida aniqlandi. Ilmiy yangilik.Organik reagentlar bilan impregnirlangan MN202 (Purolite) asosida yangi sorbentlar olindi va tadqiq qilindi, ularning kompleks hosil qilish xususiyatlari o'rganildi. “Element-sorbent”tizimlari uchun Cu2+ ionlari sorbsiyasining maqbul sharoiti aniqlandi. Olingan natijalar. Mis ionlarining sorbsiyalanish jarayoni Freundlich tenglamasi yordamida yaxshiroq tasvirlangan, bu bizga sorbsiy ajarayonida fizik adsorbsiya bilan solishtirganda kimyoviy o'zaro ta'sirning ulushini aniqlashga imkon beradi. Sorbtsiya mexanizmi adsorbent yuzasida metal ionlarining fizik adsorbtsiyasini va sorbentlar tarkibidagi impregnirlangan ligandlar mavjudligi sababli kuchli kimyoviy o'zaro ta'sirni o'z ichiga oladi, bu esa olingan sorbentlardan foydalangan holda metallarning sorbsiyasini oshirishga yordam beradi. Xususiyatlari: - mis ionlarining impregnirlangan P, S, N-guruhlar bilan sorbsiyasi o'rganildi; - sorbsiyaning muvozanat parametrlari aniqlanadi; - kompleks tuzilishi va sorbsion xossalarining o'zaro bog'liqligi o'rganildi.

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# сорбция# кинетика# kinetics# sorption# медь# изотерма# isotherm# sorbsiya# kinetika# импрегнант# impregnant# Copper# mis# izoterma# Фрейндлих# твёрдый экстрагент# qattiqekstragent# Freindlich# solid extractant# impregnate

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