Kaolin-Derived Porous Silico-Aluminate Nanoparticles as Absorbents for Emergency Disposal of Toluene Leakage

To rapidly eliminate toluene from aqueous environments during leakage accidents, this paper synthesized porous silico-aluminate nanoparticles (SANs) via a hydrothermal method, using cost-effective and non-toxic natural kaolin as the basic raw material. The morphology and structure of the porous SANs...

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Bibliographic Details
Published in:Molecules (Basel, Switzerland) Switzerland), 2024-06, Vol.29 (11), p.2624
Main Authors: Wang, Xin, Rao, Guishi, Zhou, Feng, Bian, Fuli, Hu, Yuan
Format: Article
Language:English
Subjects:
absorbents
Adsorbents
Adsorption
Aluminum
Analysis
Aqueous solutions
Carbon
Caustic soda
Chemical industry
Chemical spills
Clay
Composite materials
Cotton
Diffraction
emergency disposal
Equilibrium
Experiments
Iodine
Microwaves
Nanomaterials
Nanoparticles
Raw materials
Silica
silico-aluminate nanoparticles
Sodium
Solvent wastes
Storage area networks
Sulfuric acid
Toluene
toluene leakage
X-ray spectroscopy
X-rays
Zeolites
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Summary:To rapidly eliminate toluene from aqueous environments during leakage accidents, this paper synthesized porous silico-aluminate nanoparticles (SANs) via a hydrothermal method, using cost-effective and non-toxic natural kaolin as the basic raw material. The morphology and structure of the porous SANs were characterized using scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), and BET-specific surface area tests. The effects of different conditions, such as the dosage of porous SANs, initial concentration of toluene, temperature, capture time, and pH, on the adsorption performance of porous SANs were analyzed. The as-prepared SANs exhibited a high removal efficiency and rapid adsorption performance toward toluene in aqueous solution. Finally, the kinetics of the adsorption of toluene in aqueous solution by porous SANs were investigated. The mechanism of the adsorption of toluene by porous SANs was further discussed. These findings provide a cost-effective and highly efficient absorbent for the emergency disposal of toluene leakage accidents.
ISSN:1420-3049
1420-3049
DOI:10.3390/molecules29112624