Magnetic attapulgite synthesized via Sonochemistry: an innovative strategy for efficient solid phase extraction of As3+ from simulated and unrefined crude oil samples
Magnetised attapulgite (ATP-Fe 3 O 4 ) adsorbent was synthesised using a sonochemistry approach for the solid phase extraction of As 3+ from stimulated and unrefined crude oil samples. The average size of the Fe 3 O 4 nanoparticles estimated from the Transmission Electron Microscopy (TEM) image was...
Saved in:
Published in: | Journal of porous materials 2024-08, Vol.31 (4), p.1183-1195 |
---|---|
Main Authors: | , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites |
Online Access: | Get full text |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Summary: | Magnetised attapulgite (ATP-Fe
3
O
4
) adsorbent was synthesised using a sonochemistry approach for the solid phase extraction of As
3+
from stimulated and unrefined crude oil samples. The average size of the Fe
3
O
4
nanoparticles estimated from the Transmission Electron Microscopy (TEM) image was 10 nm. The TEM analysis also showed that Fe
3
O
4
nanoparticles agglomerated in the ATP’s tube and on its surface. The X-ray diffraction analysis (XRD) indicates that the crystallinity of the ATP reduced after the magnetisation process. The saturation magnetisation of the ATP-Fe
3
O
4
was determined to be only 2.8 emu g
-1
. Under the optimum conditions (pH = 7, adsorbent dosage = 0.6 g, contact time = 90 min and sample volume = 50 mL), the As
3+
removal was more than 98% for both types of oil. The limits of detection (LOD) and relative standard deviations (RSD%) were 2.88 ng mL
-1
and 0.3423%, respectively. The adsorption process follows the pseudo-first-order kinetic model (R
2
= 0.9696) and adheres to the Langmuir isotherm model (R
2
= 0.9925). The reusability study showed that ATP-Fe
3
O
4
is highly stable and can be reused five times with almost 100% removal efficiency. This research outcome aligns with the United Nations Sustainable Goal 7, Affordable and Clean Energy. |
---|---|
ISSN: | 1380-2224 1573-4854 |
DOI: | 10.1007/s10934-024-01581-0 |