Affiliation:
1. Ho Chi Minh City University of Technology (HCMUT) Faculty of Chemical Engineering 268 Ly Thuong Kiet Street, District 10 70000 Ho Chi Minh City Vietnam
2. Vietnam National University Ho Chi Minh City Linh Trung Ward 70000 Ho Chi Minh City Vietnam
3. Chalmers University of Technology Chemical Engineering, Competence Centre for Catalysis 412 96 Gothenburg Sweden
Abstract
AbstractNata de coco produced via coconut water fermentation using Acetobacter xylinum was directly applied to remove metal cations in aqueous solutions without any further chemical modification. Bacterial cellulose, contributing just 0.8 wt % to nata de coco, were randomly distributed and interconnected, yielding a three‐dimensional framework with high crystallinity and porosity. Due to these characteristics and the abundant presence of electron‐rich hydroxyl groups, unmodified bacterial cellulose in nata de coco exhibited a strong affinity to metal cations in water. The adsorption efficiency of nata de coco can be significantly improved to ∼30 and ∼45 mg g−1 for Pb2+ and Fe3+, respectively, by decreasing its size by grinding to decrease its size. Notably, nata de coco can adsorb multiple cations and the uptakes were almost similar for a 100‐fold scaled‐up adsorption volume.
Funder
Trường Đại học Kinh tế - Luật, Đại học Quốc gia Thành phố Hồ Chí Minh
Subject
Industrial and Manufacturing Engineering,General Chemical Engineering,General Chemistry