Ivanovo, Ivanovo, Russian Federation
graduate student
Ivanovo, Ivanovo, Russian Federation
Dannoe issledovanie napravleno na razrabotku modificirovannogo sorbenta iz othodov proizvodstva l'na i izuchenie ego sorbcionnyh svoystv po otnosheniyu k ionam Cu (II). Modifikaciya provodilas' v dva etapa, pervym etapom yavlyalos' okislenie cellyulozy l'nyanogo volokna metaperiodatom natriya do dial'degidcellyulozy, vtoroy etap sostoyal v prisoedinenii taurina dlya povysheniya sorbcionnyh harakteristik modificirovannogo sorbenta. Predstavleny usloviya provedeniya reakcii periodatnogo okisleniya l'nyanogo volokna i obrabotki poluchennoy dial'degidcellyulozy taurinom. Opredeleny sorbcionnye harakteristiki modificirovannogo sorbenta v sravnenii s ishodnym l'nyanym voloknom. Kineticheskie issledovaniya pozvolili ustanovit' vremya dostizheniya sorbcionnogo ravnovesiya v geterofaznoy sisteme «vodnyy rastvor soli metalla - sorbent» i opredelit' poryadok reakcii s ispol'zovaniem modeley kinetiki psevdopervogo i psevdovtorogo poryadkov. Izotermy sorbcii, poluchennye v hode eksperimentov, byli obrabotany po modeli Lengmyura. Predel'naya sorbcionnaya emkost' po sravneniyu s ishodnym l'nyanym voloknom vyrosla v 3 raza. Uluchshenie ravnovesnyh i kineticheskih harakteristik l'nyanogo volokna proishodit v rezul'tate poyavleniya v ego strukture novyh sorbcionnyh centrov, chto podtverzhdaetsya dannymi IK spektroskopii.
l'nyanoe volokno, iony medi, taurin, sorbciya, modifikaciya
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