Facile fabrication of mesoporous poly(ethylene- co -vinyl alcohol)/chitosan blend monoliths

Wang, Guowei; Xin, Yuanrong; Uyama, Hiroshi

doi:10.1016/j.carbpol.2015.06.040

Cited by 19 publications

(6 citation statements)

References 52 publications

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“…Among them, Polypropylene is widely used in the world in many applications and processed in several ways [ 23 ]. One of these practical applications, using Polypropylene as sorbent materials in oil spillage clean up, attracted increasing attention [ 24 , 25 , 26 , 27 ]. Sorbents consider one of the most efficient physical methods used in oil-water cleanup according to unique properties [ 16 , 28 , 29 , 30 ].…”

Section: Introductionmentioning

confidence: 99%

Polypropylene/lignin blend monoliths used as sorbent in oil spill cleanup

Alassod

Gibril

Islam

et al. 2020

Heliyon

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With increasing industrial development, frequent oil spillages in water; therefore, it is imperative and challenging to develop absorbents materials that are eco-efficiency, cost-effective, and pollution prevention. In this study, sorbents obtained from Lignin incorporated with Polypropylene in different levels loading 0, 10, 20 % wt using thermally induced phase separation Technique (TIPS). The Polypropylene/Lignin blend monoliths were fabricated and compared in terms of morphological, thermal, and wetting characterizations. The successfully blending of different lignin concentrations with preserved the chemical structure of the polymer was confirmed by FTIR analysis. Thermogravimetric tests displayed that the existence of Lignin has changed the onset temperature (Tonset) of the blending sorbents, decreasing as the loading of Lignin is increased. The contact angle measurement showed a decrease in the hydrophobicity of sorbents with increasing lignin loading, Polypropylene/Lignin blend monoliths showed better absorption toward oils (soybean – engine) as compared to Polypropylene itself. PP10L showed an improvement in the oil sorption capacity around 2 times compared to the Polypropylene. These excellent features make Polypropylene/Lignin blend monoliths more competitive promising candidates than commercial absorbent.

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Section: Introductionmentioning

confidence: 99%

Polypropylene/lignin blend monoliths used as sorbent in oil spill cleanup

Alassod

Gibril

Islam

et al. 2020

Heliyon

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“…Additional materials that utilize chitosan for water treatment are known as monoliths of poly(ethylene-co-vinyl alcohol) (EVOH)/chitosan polymer blend (Wang et al 2015). The amino groups of EVOH/chitosan are highly efficient due to the presence of chitosan in the inner wall of the monolith.…”

Section: Chitosan and Its Blendsmentioning

confidence: 99%

Science and Technology Roadmap for Adsorption of Metallic Contaminants from Aqueous Effluents Using Biopolymers and Its’ Derivatives

Ali

Chowdhury

Rafique

et al. 2021

Advanced Industrial Wastewater Treatment and Reclamation of Water

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Large amount of heavy metal pollutants are discharging by industries which are hazardous for environment. Several metallic pollutants like copper (II), nickel (II), lead (II), cadmium (II), and zinc (II) introduced in water can cause serious threat to aquatic environment. Biopolymers are promising candidate for elimination of heavy metals from waste stream. In this chapter, biopolymers based on polysaccharides can be classified into four sub-categories: homopolymers, blends of polysaccharide, copolymers, and functionalized polysaccharide or their composites. Natural biopolymers like alginate,chitosan, cellulose, chitin, and starch contain numerous surface active groups which can act as binding agent to eliminate heavy metals from water. Introduction of secondary functional groups with biopolymers enhances its' mechanical strength which is essential for recyclability of the adsorbent to ensure economical application of biopolymers for industrial scale waste water treatment plant. This chapter provides the in-depth mechanism of heavy metal interactions with the bio-polymeric surface using π-π, dipole-dipole reaction. Furthermore, it can go for hydrogen network, or weak Van-der-walls attraction with the co-polymers, homopolymer, blending of polymers, as well as biopolymer/composite matrix containing negative ions or electron-enriched groups. The concluding part of the chapter illustrates the adsorptive behavior of cations using kinetics and isotherms analysis of the equilibrium system for waste water treatment.

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“…Hence, to solve the problems of high-cost devices and long production time, phase separation of the polymer solution is one of the useful methods to prepare porous polymers with interconnected porous structure. Several methods to induce phase separation are adopted; thermally induced phase separation method (TIPS) is one among those methods [33][34][35][36]. TIPS method is considered as a simple and clean process that also surpasses the extra effort needed for the removal of the template molecules.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of polypropylene/lignin blend sponges via thermally induced phase separation for the removal of oil from contaminated water

et al. 2020

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Polypropylene is widely used in oil spillage cleanup due to excellent characteristics. However, polypropylene is not renewable and biodegradable, which is unacceptable to introduce new pollutants while solving environmental disasters. Therefore, there is a high demand to explore a low-cost, environmentally friendly, and renewable technique for the fabrication of porous materials. In this work, lignin was chosen as the second blend in the polymer matrix. Polypropylene and renewable lignin sponges were successfully prepared using simple, inexpensive, controllable, scalable, and an environment-friendly method named thermally induced phase separation (TIPS). The surface morphology of obtained sponges was investigated using FTIR and SEM. FTIR analysis indicated that PP and lignin were physically blended. SEM analysis observed an interconnected porous network that acts as a capture site of oil, and lignin merged into PP. The contact angle of PP, PP5L, PP10L, PP15L, and PP20L was found to be 127.4°, 118.71°, 113.89°, 109.45°, and 107°, respectively. Furthermore, polypropylene/lignin sponges have good adsorption ability toward oils compared to polypropylene itself. The research detected that the highest oil sorption tests exhibited by PP10L sponge, which could absorb 983% of soybean oil, 788% of engine oil, and 550% of lubricating oil in the oil system, with high oil retention more than 90% after 24-h dripping. Besides, the results revealed that temperature has a significant effect on oil absorption. All of these features make polypropylene/lignin blend sponges promising sorbents for the oil spills cleanup, not only for oil recovery but also helps in cleaning the environment.

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Facile fabrication of mesoporous poly(ethylene- co -vinyl alcohol)/chitosan blend monoliths

Cited by 19 publications

References 52 publications

Polypropylene/lignin blend monoliths used as sorbent in oil spill cleanup

Polypropylene/lignin blend monoliths used as sorbent in oil spill cleanup

Science and Technology Roadmap for Adsorption of Metallic Contaminants from Aqueous Effluents Using Biopolymers and Its’ Derivatives

Fabrication of polypropylene/lignin blend sponges via thermally induced phase separation for the removal of oil from contaminated water

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