UDC 544.723.21

SORBCIONNYE SVOJSTVA NOVOGO MODIFICIROVANNOGO SORBENTA IZ L'NYANOGO VOLOKNA Sorbcionnye svojstva novogo modificirovannogo sorbenta iz l'nyanogo volokna

Published in From Chemistry Towards Technology Step-By-Step · Volume 5, Issue 3 · Pages 61–71 · Rubric: Scientific articles
DOI: https://doi.org/10.52957/2782-1900-2024-5-3-61-71
Received: 21.08.2024 Accepted: 04.09.2024 Published: 24.09.2024
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
Funding
This work was funded by the Ministry of Science and Higher Education of the Russian Federation (Project No. FZZW–2024–0004).
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