PREPARATION OF ADSORPTION MATERIAL FOR OIL-WATER SEPARATION FROM MODIFIED ABANDONED MASKS

NING Lianchao; HAN Yaxin; LI Qunxing; LIU Zihan; ZHANG Ming

doi:10.13205/j.hjgc.202303023

Volume 41 Issue 3

Mar. 2023

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2023 > 41(3): 172-178

NING Lianchao, HAN Yaxin, LI Qunxing, LIU Zihan, ZHANG Ming. PREPARATION OF ADSORPTION MATERIAL FOR OIL-WATER SEPARATION FROM MODIFIED ABANDONED MASKS[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(3): 172-178. doi: 10.13205/j.hjgc.202303023

Citation:

NING Lianchao, HAN Yaxin, LI Qunxing, LIU Zihan, ZHANG Ming. PREPARATION OF ADSORPTION MATERIAL FOR OIL-WATER SEPARATION FROM MODIFIED ABANDONED MASKS[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(3): 172-178. doi: 10.13205/j.hjgc.202303023

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PREPARATION OF ADSORPTION MATERIAL FOR OIL-WATER SEPARATION FROM MODIFIED ABANDONED MASKS

doi: 10.13205/j.hjgc.202303023

1. School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, China;
2. Center of Membrane Materials and Engineering Technology, Tianjin University of Technology, Tianjin 300384, China

Received Date: 2022-03-16
Available Online: 2023-05-26
Publish Date: 2023-03-01

Abstract

Abstract

In recent years, a large number of abandoned masks cause resource waste and potential environmental risks in incineration and landfill. It is urgent to find an eco-friendly, economic and feasible disposal method for them. In the present work, hydrophobic modification of the abandoned masks with sodium hydroxide, TEOS and octadecyltrichlorosilane was conducted. Through scanning electron microscopy (SEM), infrared spectroscopy (ATR-FTIR) and contact angle measurement, it was found that a complete and uniform hydrophobic coating was formed on the surface of the modified masks, and the water contact angle reached 141.1°. The adsorption capacity of the modified masks for lubricating oil and soybean oil reached 28.52 g/g and 26.84 g/g, respectively. After 10 cycles of adsorption and desorption, the oil absorption performance remained stable. This study provides a new way for the resource utilization of waste masks and tells their good application prospect.
- modified masks,
- hydrophobic modification,
- oil-water separation,
- adsorbing material

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References(28)

References

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