Experimental and numerical investigations on reliability of air barrier on oil containment in flowing water

Lu, Jinshu; Zhen-feng, XU; Xu, Song; Xie, Sensen; Wu, Haoxiao; Yang, Zhenbo; Liu, Xueqiang

doi:10.1016/j.marpolbul.2015.04.020

Cited by 13 publications

(2 citation statements)

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“…A slight fluctuation peak was observed at 3342 cm −1 , which is attributed to the γ absorption peak of N + in DMC molecules connected with CH 3 molecules 41 . The peak detected at 960 cm −1 is associated with the CH 2 N + R 3 (where R represents the CH 3 functional group) structure present in DMC 42 . Notably, the NH bonding characteristic peaks were evident at 3080 and 820 cm −1 , with the former corresponding to the stretching vibration and the latter to the out‐of‐plane bending of NH bonds 43 .…”

Section: Resultsmentioning

confidence: 92%

“…41 The peak detected at 960 cm À1 is associated with the CH 2 N + R 3 (where R represents the CH 3 functional group) structure present in DMC. 42 Notably, the N H bonding characteristic peaks were evident at 3080 and 820 cm À1 , with the former corresponding to the stretching vibration and the latter to the out-of-plane bending of N H bonds. 43 The peaks at 1720 and 1180 cm À1 originated from the C O stretching vibration and C O stretching vibration within DMC molecules, respectively.…”

Section: Ftir Analysismentioning

confidence: 98%

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Preparation and characterization of quaternary bacterial cellulose composites for antimicrobial oil‐absorbing materials

Men,

Yang,

Yang

et al. 2023

J of Applied Polymer Sci

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The treatment of various types of oily wastewater is paramount for environmental protection. Bacterial cellulose (BC) stands out as a highly promising material for oil/water separation, owing to its exceptional mechanical properties and three‐dimensional porous structures. However, excessive hydroxyl groups on BC make it highly hydrophilic, reducing oil absorption and promoting bacterial growth, affecting its stability. To address these challenges, we developed a straightforward in situ polymerization method for the preparation of BC‐DMC composites. The innovation lies in the concurrent enhancement of BC's hydrophobicity and antimicrobial properties only through the addition of 2‐(Methacryloyloxy)ethyltrimethylammonium chloride (DMC), considerably simplifying the synthesis of materials possessing oil‐absorbing and antimicrobial properties. Morphological and structural characterization results confirmed the successful combination of DMC onto BC while maintaining its porous structure. After process parameter optimization, the BC‐DMC composites exhibited a remarkable increase in contact angle (117.7° compared with pure BC's 19.5°). It also demonstrated excellent oil absorption performance, with maximum capacities exceeding 30 g/g for different oils, maintaining values above 20 g/g even after eight cycles. In addition, the BC‐DMC composites exhibited strong antibacterial activity, with rates of 82.4% against Escherichia coli and 97.5% against Staphylococcus aureus. The antibacterial mechanism of the BC‐DMC composites was also discussed. Our novel BC‐DMC composites provides excellent oil absorption and antibacterial properties, making it highly applicable in the field of oily wastewater treatment and serving as a valuable reference for other researchers.

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Section: Resultsmentioning

confidence: 92%

Section: Ftir Analysismentioning

confidence: 98%