Functionalization of nanocellulose from palm oil rachis as cationic metal ions adsorbent from water

Abstract

Nanocellulose (NC) was obtained from palm oil rachis by combination of a chemical explosion method and mechanical rupture, which was functionalized with cholic acid (AC) and trietoxy(octyl)silane (TEOS) as functionalizing agents for determining the As³⁺ ion adsorption capacity from water. The nanocellulose functionalized it was characterized by infrared spectroscopy, thermal gravimetric analysis, scanning electronic microscopy and transmission electronic microscopy. Arsenic was measured by UV absorption according to molybdenum blue method. Nanofiber of cellulose was obtained with size than 19 – 24 nm, with which a functionalization of 25,96% was achieved for NC-AC and 20,50% for NC-TEOS. The adsorption tests showed a 63,6% removal of As³⁺ ion from the water using NC-AC and 22,6% using NC-TEOS as adsorbents respectively, with which NC-AC showed a potential adsorption capacity material for ion As³⁺ from water.