Embedding low–cost 1D and 2D iron pillared nanoclay to enhance the stability of polyethersulfone membranes for the removal of bisphenol A from water

Elakkiya, S.; Arthanareeswaran, G.; Das, Diganta Bhusan

doi:10.1016/j.seppur.2021.118560

Cited by 15 publications

(3 citation statements)

References 67 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Phổ UV-Vis được đo trên máy đo quang phổ Jasco V-670. nguyên nhân làm cho độ rộng khoang sét của MMT giảm từ 14,48 Angstrom xuống còn 9,06 Å. Kết quả này phù hợp với các công bố [22][23][24] .…”

Section: Hóa Chấtunclassified

Montmorillonite/TiO2 nanotubes could enhance the photocatalytic activity of rhodamine B degradation in the UVC region

Thi Băng Tâm,

Thi Thu Ha,

Trung Nguyen

et al. 2022

Sci. Tech. Dev. J. - Nat. Sci.

View full text Add to dashboard Cite

MMT/TiO2-NTs nanocomposite materials were prepared by a simple wet agitation method at room temperature from TiO2 nanotubes and montmorillonite (MMT). The synthesized MMT/TiO2-NTs samples were used as a catalyst for the photocatalytic degradation of rhodamine B (RhB) under a UVC light source (15 W, 254 nm). MMT was purified from bentonite clay (Lam Dong, Vietnam). MMT after purification possessed a characteristic lattice surface (001) at an angle of 2 = 6.1°. The adsorption capacity and the basal spacing of MMT were 70 mg/g and 14.48 Å, respectively. The TiO2 nanotubes (TiO2-NTs) were synthesized by the hydrothermal method. TiO2-NTs possessed a polycrystalline structure consisting of two phases, anatase and rutile. The average diameter and the length of the TiO2-NTs were 5 nm and 110 nm, respectively. The results on the composition, surface morphology, crystal structure, bonding vibration and photocatalytic efficiency characteristics showed that after modification into MMT, TiO2-NTs were immobilized and randomly distributed on the surface or incorporated in the clay sheets of MMT to form a pillared interlayer clay (PILC) structure. Because MMT possessed good adsorption properties, MMT would act as an adsorption center to capture RhB molecules in clay layers. MMT also prevented the recombination of TiO2 by trapping the photogenerated e into the vacant d orbitals of the metallic elements present in the MMT. Then, the •OH or •O2 radicals generated from the TiO2 photocatalytic reaction would easily react with the RhB molecules and decomposed them. The photocatalytic efficiency of 10 ppm RhB degradation of MMT/TiO2-NTs was 82% when excited by a UVC source for 210 min.

show abstract

Section: Hóa Chấtunclassified

Montmorillonite/TiO2 nanotubes could enhance the photocatalytic activity of rhodamine B degradation in the UVC region

Thi Băng Tâm,

Thi Thu Ha,

Trung Nguyen

et al. 2022

Sci. Tech. Dev. J. - Nat. Sci.

View full text Add to dashboard Cite

show abstract

“…The metal cations on the natural clay are exchanged by an organic cationic surfactant, enabling easy dispersion of clays in the polymer structure (Elakkiya et al, 2021). Regarding the effective utilization of clay‐polymer composites in water remediation, many studies were conducted by using different types of clay and polymer materials (Elakkiya et al, 2021; Orta et al, 2020; Shabtai & Mishael, 2018; Zhang et al, 2020). Inspired by the literature survey, the focus of this manuscript was the synthesis of macroporous polystyrene‐based polyHIPE/nanoclay (p(HIPE)/NClay) monoliths by incorporating nanoclay into the precursor HIPE templates and post‐functionalization of the resulting monoliths through sulfonation.…”

Section: Introductionmentioning

confidence: 99%

“…Organoclay is a surfactant‐modified form of montmorillonite that is commercially developed to increase the adsorption affinity toward hydrophobic molecules (Wang et al, 2015). The metal cations on the natural clay are exchanged by an organic cationic surfactant, enabling easy dispersion of clays in the polymer structure (Elakkiya et al, 2021). Regarding the effective utilization of clay‐polymer composites in water remediation, many studies were conducted by using different types of clay and polymer materials (Elakkiya et al, 2021; Orta et al, 2020; Shabtai & Mishael, 2018; Zhang et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Sulfonated polyHIPE/nanoclay composites with hierarchically porous structure for efficient removal of endocrine‐disrupting hormone from aqueous solution

Şimşek

Mert

Sözbir

et al. 2023

Water Environment Research

View full text Add to dashboard Cite

The objective of this study is the synthesis of macroporous polystyrene‐based polyHIPE/nanoclay (p[HIPE]/NClay) monoliths and post‐functionalization of the monoliths through sulfonation to improve the structural and textural properties as well as adsorption performances toward bisphenol A (BPA) as an endocrine‐disrupting chemical. The adsorption tests were conducted with raw p(HIPE), nanoclay, p(HIPE)/NClay, and sulfonated samples in order to obtain insights in the adsorption mechanism. The synergy between clay embedding and sulfonation resulted in higher BPA removal performance of p(HIPE)/NClay@S sample (96% removal) when compared with the raw polyHIPE (52% removal). The adsorption efficiency was mainly attributed to the functionality, followed by porosity and hydrophilicity of the as‐synthesized materials. Considering the roles of hydrophobic, hydrogen‐bonding, and π–π stacking interactions, the adsorption mechanism was discussed by using X‐ray photoelectron spectroscopy (XPS) analysis. Moreover, the experimental parameters including solution pH, co‐existing anions, ionic strength, and temperature were investigated in detail. The adsorption data were fitted to isotherm and kinetic models. The composite adsorbents also displayed excellent regeneration and stability until the fifth cycle. This research provides fresh insights into the effective adsorptive removal of endocrine‐disrupting hormones by sulfonated porous nanoclay‐polymer monoliths. Practitioner Points Sulfonated p (HIPE)/nanoclay monoliths were prepared. Bisphenol A adsorption mechanism was explored in detail. Nanoclay incorporation and sulfonation greatly enhanced the removal efficiency. The composite could be used until the fifth cycle.

show abstract

Photocatalytic bio‐inspired PDA‐RGO/g‐C₃N₄ nanocomposite incorporated PES membrane for removal of environmental antibiotic pollutants

Govardhanan,

GokulaKrishnan,

Arthanareeswaran

et al. 2024

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

BackgroundThe direct operation method of membrane technology makes it more suitable for the treatment of environmental polluted organic wastewater. Membrane fouling is one of the major concerns in the commercial membrane, to overcome this issue, photocatalytic nanomaterials are embedded into the membrane to enhance its surface nature and reusability. In this investigation, polydopamine functionalized graphene oxide (PDA‐RGO), graphite carbon nitride (g‐C3N4), and PDA‐RGO/g‐C3N4 nanomaterials are incorporated within polyethersulfone membrane fabricated via phase inversion technique. These as‐prepared membranes functional group and surface morphology were investigated by Fourier transform spectroscopy (FT‐IR), atomic force microscopy (AFM) and field emission electron microscopy (FESEM). These as‐prepared membranes are investigated photocatalytic activity under visible‐light‐driven photodegradation by environmental pollutants such as Rhodamine B (RhB) and Norfloxacin (NOR).ResultsCompared with pristine PES membrane, the PDA‐RGO/g‐C3N4‐PES nanocomposite membrane showed higher photocatalytic activity for Rhodamine B 94.6% and Norfloxacin 96.8%, also reached greater water flux 189 L m−2 h−1. Therefore, the bio‐inspired nanocomposite‐modified PDA‐RGO/g‐C3N4 photocatalytic membrane could have huge potential in processing environmentally polluted water treatment.ConclusionsPDA‐RGO/g‐C3N4‐PES nanocomposite membrane improved the membrane hydrophilicity, water flow, anti‐fouling performance, rejection studies, and photocatalytic degradation than the pristine membrane. The synergistic result of PDA‐RGO and g‐C3N4 could exhibit better photodegradation efficiency of the membrane towards environmental pollutants.This article is protected by copyright. All rights reserved.

show abstract

Embedding low–cost 1D and 2D iron pillared nanoclay to enhance the stability of polyethersulfone membranes for the removal of bisphenol A from water

Cited by 15 publications

References 67 publications

Montmorillonite/TiO2 nanotubes could enhance the photocatalytic activity of rhodamine B degradation in the UVC region

Montmorillonite/TiO2 nanotubes could enhance the photocatalytic activity of rhodamine B degradation in the UVC region

Sulfonated polyHIPE/nanoclay composites with hierarchically porous structure for efficient removal of endocrine‐disrupting hormone from aqueous solution

Photocatalytic bio‐inspired PDA‐RGO/g‐C₃N₄ nanocomposite incorporated PES membrane for removal of environmental antibiotic pollutants

Contact Info

Product

Resources

About

Embedding low–cost 1D and 2D iron pillared nanoclay to enhance the stability of polyethersulfone membranes for the removal of bisphenol A from water

Cited by 15 publications

References 67 publications

Montmorillonite/TiO2 nanotubes could enhance the photocatalytic activity of rhodamine B degradation in the UVC region

Montmorillonite/TiO2 nanotubes could enhance the photocatalytic activity of rhodamine B degradation in the UVC region

Sulfonated polyHIPE/nanoclay composites with hierarchically porous structure for efficient removal of endocrine‐disrupting hormone from aqueous solution

Photocatalytic bio‐inspired PDA‐RGO/g‐C3N4 nanocomposite incorporated PES membrane for removal of environmental antibiotic pollutants

Contact Info

Product

Resources

About

Photocatalytic bio‐inspired PDA‐RGO/g‐C₃N₄ nanocomposite incorporated PES membrane for removal of environmental antibiotic pollutants