Fabrication and characterization of silane‐functionalized Na‐bentonite polysulfone/polyethylenimine nanocomposite membranes for dye removal

Saki, Seda; Senol‐Arslan, Dilek; Uzal, Niğmet

doi:10.1002/app.49057

Cited by 11 publications

(5 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…may cause environmental problems even at trace amounts. Interestingly, these organic contaminants were removed using CPNs as adsorbent, due to the existence of polymeric hydrophobic parts on the NCs surfaces [ 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 , 66 , 67 , 68 , 69 , 70 , 71 , 72 , 73 , 74 , 75 , 76 , 77 , 78 , 79 , 80 , 81 , 82 , 83 , 84 , 85 , 86 , 87 , 88 , 89 , 90 ]. In this perspective, several CPNs in the form of powder or tablets were prepared using the thin-coated layer methods.…”

Section: Clay-polymers Nanocomposites For Pollutants Removalmentioning

confidence: 99%

Clay-Polymer Nanocomposites: Preparations and Utilization for Pollutants Removal

et al. 2021

View full text Add to dashboard Cite

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.

show abstract

Section: Clay-polymers Nanocomposites For Pollutants Removalmentioning

confidence: 99%

Clay-Polymer Nanocomposites: Preparations and Utilization for Pollutants Removal

et al. 2021

View full text Add to dashboard Cite

show abstract

“…The global community is concerned about the possible negative effects of wastewater dyeing on aquatic ecosystems, which is a threat to the environment, and the largest source is organic dyes. Therefore, it is crucial to utilize the appropriate methods for removing these dyes from aquatic systems 21–24 …”

Section: Introductionmentioning

confidence: 99%

“…Therefore, it is crucial to utilize the appropriate methods for removing these dyes from aquatic systems. [21][22][23][24] For the removal of toxic organic dyes, conventional water treatment technologies such as adsorption, 25 photocatalysis degradation, 26 coagulation, 27 and membrane technology are utilized. 28 Membrane technology is favored over other wastewater treatment methods due to its excellent filtration, low energy consumption, ease of scaling up and operation, and eco-friendly and renewable approach.…”

mentioning

confidence: 99%

The different impacts of g‐C₃N₄ nanosheets on PVDF and PSF ultrafiltration membranes for Remazol black 5 dye rejection

Arslan

Gul

Dizge

et al. 2023

J of Applied Polymer Sci

Self Cite

View full text Add to dashboard Cite

Membranes combined with nanoparticles are an excellent combination capable of successfully removing various contaminants, such as dyes from wastewater while using very little energy and decreasing pollution. The present study reports an efficient approach for Remazol Black 5 (RB5) dye removal using composite graphitic carbon nitride nanosheets (g‐C3N4), polysulfone (PSF), and polyvinylidene fluoride (PVDF) membranes. The membranes were prepared using the phase inversion method, with varying quantities of g‐C3N4 nanosheets ranging from 0.1%, 0.2% to 0.3%. The prepared g‐C3N4 nanosheets were characterized by FTIR, SEM analyses, and zeta potential measurements. FTIR and SEM studies, contact angle, water permeability, COD, and dye rejection measurements were used to characterize the g‐C3N4 nanosheets embedded in PSF and PVDF membranes. After the addition of 0.3 wt% g‐C3N4, the water flux of the 0.3 wt% g‐C3N4 embedded PSF membrane was the highest, whereas the water flux of the 0.3 wt% g‐C3N4 embedded PVDF membrane was the lowest. The ultrafiltration (UF) membrane's performance with g‐C3N4 embedded showed an RB5 rejection rate of more than 80% and a COD removal efficiency of more than 45%. The results of the experimental filtration showed that RB5 rejection reached maximum values of 91.3% for 0.1 wt% g‐C3N4/PSF, and 85.6% for 0.3 wt% g‐C3N4/PVDF.

show abstract

“…Thus far, various methods have been utilized to make the hydrophobicity of bentonite, such as cetyltrimethylammonium bromide (CTAB), polymers (for example, polyethylene), octadecyl dimethyl phenylmethyl ammonium chloride (ODPAC), silanes, and stearic acid (SA) (Hong et al, 2020;Huang et al, 2015;Johansson and Clegg, 2014;Ogunlaja and Pal, 2020;Saki et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation of hydrophobic bentonite effects on reducing evaporation from water surfaces

Jajin

Feizi

Ghorbanpour

2022

Journal of Hydrology and Hydromechanics

View full text Add to dashboard Cite

In recent years, due to the occurrence of water shortage and drought problems, particularly in arid and semi-arid regions of the world, new methods to reduce evaporation from the surface of dam reservoirs, lakes, and other water-free surfaces are investigated. This study aimed to use hydrophobic bentonite to reduce water evaporation from water surfaces, on a laboratory scale, and field conditions for the first time. Bentonite initially became hydrophobic by stearic acid (SA). Under such conditions, hydrophobic bentonite floats on the surface of water and forms a thin coating layer. The produced hydrophobic bentonite had a contact angle of 150°, indicating its superhydrophobicity. Evaporation reduction was measured under laboratory and field conditions and it was compared to hexadecanol as the reference material. The results demonstrated that the hydrophobic bentonite efficiency under laboratory conditions was similar to that of hexadecanol and prevented water evaporation by 36%. However, under field conditions, hydrophobic bentonite and hexadecanol efficiencies were 40% and 23% to reduce evaporation for 30 days, respectively. In terms of stability, hexadecanol needed to be re-injected after three days, while hydrophobic bentonite was stable and remained on the surface for more than 100 days under laboratory conditions and for more than 15 days under field conditions without needing re-injection. This coverage with method can be used to reduce evaporation from lakes, tanks, and reservoirs of small dams.

show abstract

Fabrication and characterization of silane‐functionalized Na‐bentonite polysulfone/polyethylenimine nanocomposite membranes for dye removal

Cited by 11 publications

References 39 publications

Clay-Polymer Nanocomposites: Preparations and Utilization for Pollutants Removal

Clay-Polymer Nanocomposites: Preparations and Utilization for Pollutants Removal

The different impacts of g‐C₃N₄ nanosheets on PVDF and PSF ultrafiltration membranes for Remazol black 5 dye rejection

Experimental investigation of hydrophobic bentonite effects on reducing evaporation from water surfaces

Contact Info

Product

Resources

About

Fabrication and characterization of silane‐functionalized Na‐bentonite polysulfone/polyethylenimine nanocomposite membranes for dye removal

Cited by 11 publications

References 39 publications

Clay-Polymer Nanocomposites: Preparations and Utilization for Pollutants Removal

Clay-Polymer Nanocomposites: Preparations and Utilization for Pollutants Removal

The different impacts of g‐C3N4 nanosheets on PVDF and PSF ultrafiltration membranes for Remazol black 5 dye rejection

Experimental investigation of hydrophobic bentonite effects on reducing evaporation from water surfaces

Contact Info

Product

Resources

About

The different impacts of g‐C₃N₄ nanosheets on PVDF and PSF ultrafiltration membranes for Remazol black 5 dye rejection