MIL-Ti metal-organic frameworks (MOFs) nanomaterials as superior adsorbents: Synthesis and ultrasound-aided dye adsorption from multicomponent wastewater systems

Oveisi, Mina; Asli, Mokhtar Alina; Mahmoodi, Niyaz Mohammad

doi:10.1016/j.jhazmat.2017.12.057

Cited by 323 publications

(114 citation statements)

References 70 publications

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“…Specific surface area is also an important affecting factor of photocatalytic activity, especially in adsorption photocatalysis process. Generally speaking, the larger specific surface area can provide more active sites which would be in favor of photocatalytic reaction . The materials pore size, surface area and pore volume are obtained by N 2 adsorption.…”

Section: Resultsmentioning

confidence: 99%

Efficient Adsorption and Photocatalytic Degradation of Dyes by AgI‐Bi₂MoO₆/Vermiculite Composite under Visible Light

et al. 2019

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A novel efficient AgI‐Bi2MoO6/vermiculite adsorption‐photocatalyst is successfully synthesized by sol‐gel method and precipitation method. The structure and properties of AgI‐Bi2MoO6/vermiculite were analyzed by XRD, FT‐IR, XPS, SEM, TEM, BET, and DRS. All the AgI‐Bi2MoO6/vermiculite composites with different AgI content show enhanced photocatalytic performance for malachite green (MG) dye degradation compared to pure Bi2MoO6 and Bi2MoO6/vermiculite composites. The highest degradation efficiency for MG (30 mg/L) via 5 wt%‐AgI‐Bi2MoO6/vermiculite composite (AgI content 5 wt%) photocatalyst (1 g/L) reaches 98.89% in 60 min at pH 9 without salt. The enhanced performance can be attributed to the uniform dispersion of Bi2MoO6 and AgI on the surface of vermiculite, the stable structure, the enhanced adsorption and the widened visible‐light absorption range as well as the faster separation of electron‐hole pairs. Besides, the photocatalyst still shows relatively high adsorption and photocatalytic performance after three times recycling. In addition, the possible photocatalytic mechanism is proposed at the end.

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Section: Resultsmentioning

confidence: 99%

Efficient Adsorption and Photocatalytic Degradation of Dyes by AgI‐Bi₂MoO₆/Vermiculite Composite under Visible Light

et al. 2019

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“…where C 0 is the initial concentration of IC dye solution and C t is the concentration at a specific time interval of the collected samples [25].…”

Section: Photocatalytic Study Of Tnr Hybrid Sheets Characterizationsmentioning

confidence: 99%

High photocatalytic performance of 3D porous-structured TiO2@natural rubber hybrid sheet on the removal of indigo carmine dye in water

2019

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Due to the high efficiency of photocatalytic process for the environmental treatments, titanium dioxide (TiO 2 ) is a popular used as photocatalyst material. However, the practical uses of TiO 2 in powder form have some drawbacks as well as the difficult reusability. In this work, 3D porous-structured TiO 2 @natural rubber (TNR) hybrid sheets with high photocatalytic performance were presented. TNR hybrid sheets prepared by a facile and low-cost method, which is based on the mixing of natural rubber (NR) latex (60% high ammonia) and ammoniacal TiO 2 (P25) suspension, followed by vacuum filtration through a sintered glass template to make a 3D porous network structure on the surface of the sheets. The obtained TNR sheet samples were characterized by scanning electron microscopy (SEM), energy dispersive X-ray spectrometer (EDX), X-ray diffractometer (XRD) and reflection Fourier transformed infrared spectroscopy (FT-IR) techniques. The results showed that the surface morphologies of TNR hybrid sheets appeared as porous-structured which had high roughness and with various tiny pores on the surface. The photocatalytic properties of the prepared TNR hybrid sheets were tested using indigo carmine (IC) dye under UV light irradiation. It was found that the highest photodegradation efficiency was achieved with the TNR_5 wt% hybrid sheet sample. Compared with the sheets reported in previous works, the TNR sheet shows higher efficiencies than those sheets due to its higher amount of TiO 2 particles at the surface, more porous structure with high rough surface, and abundance of tiny pores on the TNR sheet surface. Moreover, the recyclability and stability of TNR sheet indicated that upon using 10 cycles (remains 98% efficiency), in which the stability of the sheet surface well-confirmed by SEM and XRD techniques, as well. From above the study, this 3D porous-structured TNR hybrid sheet could be a new alternative strategy for the water or wastewater treatment in industry concerning with the easy use, recovery, reusability and stability of the photocatalysts.

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“…Oveisi et al. have prepared a series of MIL−Ti nanoMOFs by the hydrothermal method . The size and morphology of the particles could be tuned using different molar ratios of bdc/NH 2 ‐bdc linkers (Figure ).…”

Section: Synthesis Of Mof Nanocrystalsmentioning

confidence: 99%

Section: Synthesis Of Mof Nanocrystalsmentioning

confidence: 99%

Metal‐Organic Framework Nanocrystals

Barros¹,

Neto

Frós

et al. 2018

ChemistrySelect

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Metal‐organic frameworks (MOFs) comprise a broad class of crystalline materials defined as porous networks consisting of metal ions or clusters interconnected through polytopic organic linkers. Due to their intriguing structural and topological characteristics which usually offer high surface areas and tunable pore size, MOFs are excellent candidates for a great variety of applications, such as gas adsorption and separation, catalysis, magnetism, photoluminescence and many others. Although attractive, traditional bulk crystalline MOF materials do not always fulfill the specific needs for some applications, such as smart membranes, thin films devices, and drug delivery. Moreover, nanocrystals display properties that differ from the bulk material due to the high surface‐to‐volume ratio and quantum size effects. Thus, MOF nanocrystals will possibly present new and exciting properties or at least enhance the already known ones. With this view, it is necessary to develop efficient strategies towards the synthesis of MOF nanocrystals. This review provides general concepts of MOF nanocrystals and a critical summary of synthetic approaches with the focus on recent progress in the fabrication of MOF nanocrystals.

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MIL-Ti metal-organic frameworks (MOFs) nanomaterials as superior adsorbents: Synthesis and ultrasound-aided dye adsorption from multicomponent wastewater systems

Cited by 323 publications

References 70 publications

Efficient Adsorption and Photocatalytic Degradation of Dyes by AgI‐Bi₂MoO₆/Vermiculite Composite under Visible Light

Efficient Adsorption and Photocatalytic Degradation of Dyes by AgI‐Bi₂MoO₆/Vermiculite Composite under Visible Light

High photocatalytic performance of 3D porous-structured TiO2@natural rubber hybrid sheet on the removal of indigo carmine dye in water

Metal‐Organic Framework Nanocrystals

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MIL-Ti metal-organic frameworks (MOFs) nanomaterials as superior adsorbents: Synthesis and ultrasound-aided dye adsorption from multicomponent wastewater systems

Cited by 323 publications

References 70 publications

Efficient Adsorption and Photocatalytic Degradation of Dyes by AgI‐Bi2MoO6/Vermiculite Composite under Visible Light

Efficient Adsorption and Photocatalytic Degradation of Dyes by AgI‐Bi2MoO6/Vermiculite Composite under Visible Light

High photocatalytic performance of 3D porous-structured TiO2@natural rubber hybrid sheet on the removal of indigo carmine dye in water

Metal‐Organic Framework Nanocrystals

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Product

Resources

About

Efficient Adsorption and Photocatalytic Degradation of Dyes by AgI‐Bi₂MoO₆/Vermiculite Composite under Visible Light

Efficient Adsorption and Photocatalytic Degradation of Dyes by AgI‐Bi₂MoO₆/Vermiculite Composite under Visible Light