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Crosslinked hydrogels of polyethylenimine and graphene oxide to treat Cr(VI) contaminated wastewater
저자
Mittal H.,Al Alili A.,Morajkar P.P.,Alhassan S.M.
학술지명
Colloids and Surfaces A: Physicochemical and Engineering Aspects
출판/발행연도
2021
주제
요약
본 연구는 크롬(VI) 오염수 처리를 위한 그래핀 옥사이드(GO)와 폴리에틸렌이민(PEI) 기반의 가교 나노복합체 하이드로겔(GO/PEI-NCH) 합성을 보고한다. GO/PEI-NCH는 pH 2에서 50 mg/L 크롬 용액으로부터 약 97%의 크롬(VI)을 흡착했으며, 최대 흡착 용량은 443.8 mg/g으로 나타났다. 또한, HCl 용액을 사용하여 효율적으로 재생 가능하며, 10회 연속 흡착-탈착 사이클 동안 우수한 안정성과 재사용성을 보였다.
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