Ivanovo, Ivanovo, Russian Federation
Ivanovo, Ivanovo, Russian Federation
graduate student
Ivanovo, Ivanovo, Russian Federation
Predstavleny rezul'taty modificirovaniya hlopkovoy cellyulozy glicinom. Modificirovanie provodili cherez stadiyu okisleniya cellyulozy metaperiodatom natriya s obrazovaniem dial'degidcellyulozy i ee posleduyuschey obrabotkoy aminouksusnoy kislotoy. Issledovany sorbcionnye svoystva obrazcov ishodnoy i modificirovannoy cellyulozy po otnosheniyu k ionam Cu(II) i Fe(II). V kineticheskih eksperimentah ustanovleno, chto stepen' izvlecheniya ionov medi(II) i zheleza(II) modificirovannym obrazcom primerno na 25% vyshe po sravneniyu s ishodnym. Pri obrabotke kineticheskih krivyh sorbcii v ramkah modeli kinetiki psevdo-vtorogo poryadka polucheny naibolee korrektnye rezul'taty. Opredeleny optimal'nye usloviya modificirovaniya hlopkovoy cellyulozy dlya dostizheniya maksimal'noy sorbcii ionov medi(II) i zheleza(II), polucheny ravnovesno-kineticheskie harakteristiki modificirovannoy i nemodificirovannoy hlopkovoy cellyulozy. Pri izuchenii sorbcionnogo ravnovesiya v geterofaznoy sisteme «cellyuloznyy sorbent – vodnyy rastvor sul'fata metalla» snyaty izotermy sorbcii, provedena ih obrabotka v ramkah modeli Lengmyura i opredeleny velichiny predel'noy sorbcionnoy emkosti nativnoy i modificirovannoy cellyulozy. Ustanovleno, chto predel'naya sorbcionnaya emkost' modificirovannogo sorbenta primerno v 1,5 2 raza prevyshaet predel'nuyu sorbcionnuyu emkost' nativnoy hlopkovoy cellyulozy. Polucheny IK-spektry nativnoy cellyulozy i ee modificirovannogo obrazca. Vypolnen elementnyy analiz i polucheny izobrazheniya poverhnostnoy struktury sorbcionnyh materialov na osnove hlopkovoy cellyulozy s pomosch'yu SEM.
hlopkovaya cellyuloza, modificirovanie, aminouksusnaya kislota, sorbciya, iony Cu(II) i Fe(II)
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