Bacterial Cellulose-Based Material from Coconut Water as Efficient Green Adsorbent for Heavy Metal Cations
Artikel i vetenskaplig tidskrift, 2023

Nata 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 & SIM;30 and & SIM;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.

Coconut water

Adsorption

Metal cations

Fermentation

Unmodified bacterial cellulose

Författare

Hanh N. H. Nguyen

Vietnam National University

Ho Chi Minh City University of Technology (HCMUT)

Khoa D. D. Nguyen

Ho Chi Minh City University of Technology (HCMUT)

Vietnam National University

Nhan T. H. Le

Vietnam National University

Ho Chi Minh City University of Technology (HCMUT)

Hoang Phuoc Ho

Chalmers, Kemi och kemiteknik, Kemiteknik

Ha V. V. Le

Vietnam National University

Ho Chi Minh City University of Technology (HCMUT)

Chemical Engineering and Technology

0930-7516 (ISSN) 1521-4125 (eISSN)

Vol. 46 12 2547-2559

Ämneskategorier

Materialkemi

DOI

10.1002/ceat.202300033

Mer information

Senast uppdaterat

2024-03-07