Electrospun polylactic acid/tungsten oxide/amino-functionalized carbon quantum dots (PLA/WO3/N-CQDs) fibers for oil/water separation and photocatalytic decolorization

Nugraha, Muhammad Wahyu and Wirzal, Mohd Dzul Hakim and Ali, Fathilah and Roza, Liszulfah and Sambudi, Nonni Soraya (2021) Electrospun polylactic acid/tungsten oxide/amino-functionalized carbon quantum dots (PLA/WO3/N-CQDs) fibers for oil/water separation and photocatalytic decolorization. Journal of Environmental Chemical Engineering, 9 (5). pp. 1-14. ISSN 2213-3437

Preview	PDF (SCOPUS) - Supplemental Material Download (579kB) | Preview
	PDF (Article) - Published Version Restricted to Repository staff only Download (4MB) | Request a copy

Abstract

Oily wastewater generated from various industrial processes and oil spillages is a massive threat to the environment and human health. Hence, it is essential to develop novel material for practical oil/water separation and recovery. By incorporating WO3 (tungsten oxide)/ N-CQDs (amino-functionalized carbon quantum dots) into the matrix of polymer, the alteration of wettability behavior of electrospun PLA fiber is reported in this present work. The modified PLA/WO3/N-CQDs fibers shows a significantly enhanced hydrophobicity of the fibers while maintaining surface super-oleophilicity. These behaviors are achieved by modifying the surface contact angle and surface morphology of the composite PLA fiber using WO3/N-CQDs as filler. The PLA/WO3/N-CQDs EDA fiber exhibits the highest water contact angle (WCA) at 132.37º, oil absorption capacity at 35.752 g/g for n-hexane, oil separation performance at 8,326.048 L m−2 h−1 for n-hexane and 11,961.364 L m−2 h−1 for n-heptane, and decolorization of methylene blue (MB) at 91.80%. Additionally, the PLA/WO3/N-CQDs EDA fiber demonstrated an excellent separation performance and durability after ten times cyclic separation performance test. This present study contributes to a potential application in the field of oily wastewater treatment.

Item Type:	Article (Journal)
Additional Information:	5439/92861
Uncontrolled Keywords:	Adsorption Contact angle Fiber preparation Oil/water separation Porous fiber
Subjects:	T Technology > TP Chemical technology > TP1080 Polymers, plastics and their manufacture
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering Kulliyyah of Engineering > Department of Biotechnology Engineering
Depositing User:	Dr Fathilah Ali
Date Deposited:	07 Oct 2021 12:04
Last Modified:	07 Oct 2021 12:04
URI:	http://irep.iium.edu.my/id/eprint/92861

Actions (login required)

View Item