Precipitated silica agglomerates reinforced with cellulose nanofibrils as adsorbents for heavy metals.

ABSTRACT: Silicon-containing compounds such as silica are effective heavy metal sorbents which can be employed in many applications. This is attributed to the porous nature of hydrothermally-stable silica, endowing such materials with high surface area and rich surface chemistry, all responsible for improving adsorption and desorption performance. However, to this day, the wide application of silica is limited by its skeletal brittleness and high production cost coupled with a risky traditional supercritical drying method. To solve the named problems, herein, precipitated silica agglomerates (referred to as PSA) was crosslinked with TEMPO-oxidized cellulose nanofibrils (TO-CNF) as a reinforcement in the presence of 3-aminopropyltriethoxysilane (APTES), via a facile dual metal synthesis approa

SUBMITTER: Agaba A 

PROVIDER: S-EPMC9086562 | biostudies-literature | 2018 Sep

REPOSITORIES: biostudies-literature