Preparation of thermally stable magnetic poly(urethane-imide)/nanocomposite containing β-cyclodextrin cavities as new adsorbent for lead and cadmium

Eibagi, Hasti; Faghihi, Khalil

doi:10.1007/s10965-020-02255-6

Cited by 5 publications

(4 citation statements)

References 56 publications

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“…Also, clay-polymers nanocomposites withstand the fixed bed systems high temperatures and pressures due to the improvement offered by polymers (thermal and the mechanical stability). Therefore, clay-polymers nanocomposites can be used in industrial scale with low exhaustion during long-term use [ 130 ]. Additionally, clay-polymers nanocomposites provide great price advantage compared to other famous adsorbents (zeolites, activated carbon, etc.)…”

Section: Factors Making Clay-polymers Nanocomposites Promising Matmentioning

confidence: 99%

Clay-Polymer Nanocomposites: Preparations and Utilization for Pollutants Removal

et al. 2021

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Nowadays, people over the world face severe water scarcity despite the presence of several water sources. Adsorption is considered as the most efficient technique for the treatment of water containing biological, organic, and inorganic contaminants. For this purpose, materials from various origins (clay minerals, modified clays, zeolites, activated carbon, polymeric resins, etc.,) have been considered as adsorbent for contaminants. Despite their cheapness and valuable properties, the use of clay minerals as adsorbent for wastewater treatment is limited due to many factors (low surface area, regeneration, and recovery limit, etc.). However, clay mineral can be used to enhance the performance of polymeric materials. The combination of clay minerals and polymers produces clay-polymers nanocomposites (CPNs) with advanced properties useful for pollutants removal. CPNs received a lot of attention for their efficient removal rate of various organic and inorganic contaminants via flocculation and adsorption ability. Three main classes of CPNs were developed (exfoliated nanocomposites (NCs), intercalated nanocomposites, and phase-separated microcomposites). The improved materials can be explored as novel and cost-effective adsorbents for the removal of organic and inorganic pollutants from water/wastewater. The literature reported the ability of CPNs to remove various pollutants such as bacteria, metals, phenol, tannic acid, pesticides, dyes, etc. CPNs showed higher adsorption capacity and efficient water treatment compared to the individual components. Moreover, CPNs offered better regeneration than clay materials. The present paper summarizes the different types of clay-polymers nanocomposites and their effective removal of different contaminants from water. Based on various criteria, CPNs future as promising adsorbent for water treatment is discussed.

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Section: Factors Making Clay-polymers Nanocomposites Promising Matmentioning

confidence: 99%

Clay-Polymer Nanocomposites: Preparations and Utilization for Pollutants Removal

et al. 2021

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“…Polymers reinforced with carbon nanotubes have different applications in transportation applications, thermal management, and electronic and fuel cell. Good physical properties combined with high aspect ratio and unique nanostructures make carbon nanotube as useful reinforcements for high-performance and multifunctional polymer nanocomposites [1][2][3][4][5]. Polyurethanes (PUs) are multipurpose polymers.…”

Section: Introductionmentioning

confidence: 99%

“…Unfortunately, they have low thermal stability, which limits their applications [6]. There are some efforts to improve the thermal stability of polyurethanes [5,7]. One way to improve the thermal stability of PU is the chemical modification of its structure by blending or copolymerizing with more thermally stable polymers.…”

Section: Introductionmentioning

confidence: 99%

“…One way to improve the thermal stability of PU is the chemical modification of its structure by blending or copolymerizing with more thermally stable polymers. Poly(urethane-imide)s PUIMs are unique polymeric structures known for their interesting mechanical and thermal properties and also for their environmental friendly behaviors [5,8,9,10]. Incorporating symmetric aromatic imide rings with strong bonds into polyurethane backbone of PUIMs provide good balances between mechanical and thermal properties and flexibility of these materials [11,12].…”

Section: Introductionmentioning

confidence: 99%

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Synthesis and characterization of new nanocomposites based on poly(urethane-imide)s reinforced functionalized carbone nanotubes containing N-Trimellitimido-L-Valine as rigid segments

Faghihi,

Enayat,

Soleimani

2023

CNJ

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New poly(urethane-imide)s (PUIMs/MWCNT) nanocomposites (8a & 8b) containing two different amounts of MWCNTs were prepared by in situ polymerization technique. We first prepared a new diisocyanate (5) containing imide moiety by a proper synthetic method. Then new poly(urethane-imide) (7) was prepared by reaction of diisocyanate ( 5) with hydroquinone and structure of resulting polymer was characterized by mean of FT-IR spectroscopy and elemental analysis. Also inherent viscosity of resulting poly(urethane-imide) ( 7) was measured about 0.35 dL/g. Transmission electron microscopy (TEM) showed that MWCNTs were exfoliated in the polymer matrix, resulting in welldispersed morphologies at 1.5 and 2.5 mass% MWCNT contents. The effects of multiwall carbon nanotubes (MWCNT) on the thermal property of new PUIMs/MWCNT derived from diisocyanate (5) were investigated by thermogravimetric analysis (TGA) in nitrogen atmosphere. TGA results showed that the addition of MWCNT resulted a substantial increase of the thermal stability and char yields of the nanocomposites compared to the neat PUIMs. TEM experiments show morphology and good dispersion of nanotubes in polymeric matrix. The X-ray pattern of the PUIMs/MWCNT nanocomposites (8a) showed the combined peaks appearing in the MWCNT and pure PUIMs (7).

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Cyclodextrin-Based Material for Industrial Wastewater Treatments

Lasita

Pradhan

Wagh

et al. 2023

Advanced Application of Nanotechnology to Industrial Wastewater

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Preparation of thermally stable magnetic poly(urethane-imide)/nanocomposite containing β-cyclodextrin cavities as new adsorbent for lead and cadmium

Cited by 5 publications

References 56 publications

Clay-Polymer Nanocomposites: Preparations and Utilization for Pollutants Removal

Clay-Polymer Nanocomposites: Preparations and Utilization for Pollutants Removal

Synthesis and characterization of new nanocomposites based on poly(urethane-imide)s reinforced functionalized carbone nanotubes containing N-Trimellitimido-L-Valine as rigid segments

Cyclodextrin-Based Material for Industrial Wastewater Treatments

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