MIL-101(Cr)/graphene hybrid aerogel used as a highly effective adsorbent for wastewater purification

Hou, Pengchao; Xing, Guangjian; Han, Dejun; Zhao, Yan; Zhang, Gang; Wang, Hao; Zhao, Chang; Yu, Chunna

doi:10.1007/s10934-019-00761-7

Cited by 25 publications

(7 citation statements)

References 52 publications

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“…According to the literature, the sharp and intense diffraction peaks emerged at 7.4 and 18° are related to the (822) lattice plane, and the peak appeared at 8.2° corresponds to the (753) lattice plane of MIL-101(Cr)–NH 2 , demonstrating the successful fabrication of the nanoparticles . Furthermore, the high intensity of the diffraction peaks of MIL-101(Cr)–NH 2 proves the high crystallinity of the fabricated MIL-101(Cr)–NH 2 nanoparticles . The above-mentioned peaks are also obvious in the TFN pattern, demonstrating successful loading of nanoparticles into the active PA layer.…”

Section: Resultsmentioning

confidence: 66%

“…55 Furthermore, the high intensity of the diffraction peaks of MIL-101(Cr)−NH 2 proves the high crystallinity of the fabricated MIL-101(Cr)−NH 2 nanoparticles. 56 The abovementioned peaks are also obvious in the TFN pattern, demonstrating successful loading of nanoparticles into the active PA layer. Moreover, the high-intensity peaks appeared at 21.8 and 24.3°in the patterns of PE, PE-BSM, PE-BSM@TFC, and PE-BSM-MIL@TFN are related to the (110) and ( 200) peaks of the PE membrane.…”

Section: Tfn and Tfc Membrane Characterization 341 Vibrational Elemen...mentioning

confidence: 92%

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TFN Membrane Fabricated by a Gyroid-like PE Support, a Basil Seed Mucilage–Fe(III) Interlayer, and a Polyamide Active Layer Incorporated with MIL-101(Cr)–NH₂ Nanoparticles

Heidari

Mahdavi

Marandi

et al. 2022

ACS Appl. Polym. Mater.

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In this study, we aim to report the preparation of a thin-film nanocomposite (TFN) membrane with promising performance for solventresistant nanofiltration applications. In this respect, a blend sheet of two immiscible polymers, that is, high-density polyethylene−polystyrene (PS), compatibilized with styrene−ethylene−butylene−styrene, was made. Subsequently, through extracting the dispersed phase (PS/compatibilizer) from the blend sheet, the PE membrane support was fabricated. After that, basil seed mucilage (BSM) was extracted from basil seeds through a stateof-the-art approach, by which a state-of-the-art environmental-friendly BSM−Fe(III) cross-linked interlayer was prepared on the surface of the PE support. Finally, the polyamide active layer was prepared via mphenylenediamine and trimesoyl chloride monomers incorporated with MIL-101(Cr)−NH 2 nanoparticles. To draw a comparison, a TFC membrane was also prepared through a similar approach, except that no nanoparticles were incorporated into the active layer. The performance of the TFN and TFC membranes was studied in terms of rejecting various dyes dissolved in methanol, based on which extraordinary performance, including dye rejection as high as 99.6, 99.8, 99.8, and 99.9% for methylene blue, crystal violet, rhodamine B, and methyl green, respectively, extraordinary solvent resistance, high methanol flux of 4.4 L/m 2 h bar, as well as great methanol permeance of 9.1 L/m 2 h bar, after dimethylformamide activation, was obtained by the TFN membrane.

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Section: Resultsmentioning

confidence: 66%

Section: Tfn and Tfc Membrane Characterization 341 Vibrational Elemen...mentioning

confidence: 92%

TFN Membrane Fabricated by a Gyroid-like PE Support, a Basil Seed Mucilage–Fe(III) Interlayer, and a Polyamide Active Layer Incorporated with MIL-101(Cr)–NH₂ Nanoparticles

Heidari

Mahdavi

Marandi

et al. 2022

ACS Appl. Polym. Mater.

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“…Especially for the adsorption of MO, the uptake of 160-MIL-101 is significantly higher than that of other adsorbents which have been reported in recent years (Table 2) [64][65][66][67][68][69][70][71][72]. The uptake of 160-MIL-101 is also significantly higher than other MIL-101 and MIL-101 composites from several studies (Table S3) [23,61,[73][74][75][76][77][78]. Figure 3 revealed the maximum adsorption capabilities of 160-MIL-101 toward MO and RB.…”

Section: Adsorption Capacity Of Spherical Mil-101(cr) For Dyesmentioning

confidence: 75%

Low-Temperature and Additive-Free Synthesis of Spherical MIL-101(Cr) with Enhanced Dye Adsorption Performance

et al. 2022

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The chromium-benzenedicarboxylate metal–organic framework (MOF), MIL-101(Cr), is one of the most well-investigated and widely used prototypical MOFs. Regarding its synthesis, the use of a toxic modulator (usually HF) and high reaction temperature (220 °C) are the main factors hindering its further expansion of production and utilization. In fact, high quality MIL-101(Cr) crystals can be prepared at a much lower temperature (160 °C) with spherical morphology via an additive-free approach. Compared to traditional octahedral MIL-101(Cr), the spherical MIL-101(Cr) possesses higher adsorption performance toward dye molecules, including methyl orange (MO) and rhodamine B (RB). The results suggest that toxic additives and high reaction temperatures are not essential in the synthesis of MIL-101(Cr), and the fabrication of spherical MIL-101(Cr) may offer a facile and effective pathway for the large-scale industrial application of MIL-101(Cr).

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“…[28] Like TMAOH, the optimal concentration of acetate salts has been reported since nonoptimal concentrations may yield amorphous products. [27] Mole ratios such as 1 Cr(NO 3 ) 3 :1 H 2 BDC:0.15 CH 3 COOLi:347 H 2 O [27] and 1 Cr(NO 3 ) 3 :1 H 2 BDC:0.25 CH 3 COONa:277 H 2 O [128,138] are optimal. However, only one article provided the yield for CH 3 COONa-MIL-101(Cr): 40% based on Cr.…”

Section: Acetate Saltsmentioning

confidence: 99%

Elucidating Improvements to MIL‐101(Cr)’s Porosity and Particle Size Distributions based on Innovations and Fine‐Tuning in Synthesis Procedures

Wee

Chinnappan

Ramakrishna

2023

Adv Materials Inter

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Among the existing metal–organic frameworks (MOFs), MIL‐101(Cr) is renowned for its stability in air and water. As a result, MIL‐101(Cr) has numerous potential applications ranging from adsorptive cooling to catalysis. The industrial‐scale production of MIL‐101(Cr) is necessary before realizing these applications. Yet, there remain two main bottlenecks in preparing MIL‐101(Cr) in bulk: the toxicity of hydrofluoric acid (HF) used in conventional MIL‐101(Cr) synthesis and the challenge of ensuring that the as‐prepared MIL‐101(Cr) is highly porous with specific Brunauer–Emmett–Teller surface area (SBET) above 4000 m2 g−1. On the laboratory scale, MIL‐101(Cr) often presents SBET 2300–3500 m2 g−1. The synthesis and purification procedures often influence the yield, particle size, porosity, and other properties of MIL‐101(Cr). This critical review examines trends in MIL‐101(Cr) preparation procedures and the MOF's resulting properties to elucidate areas for improvement toward its real‐world applications. The purification processes for conventional HF‐based MIL‐101(Cr) whereby porosities vary despite the same synthesis approach are first investigated. Next, the reported additives for substituting HF and their influence on the resulting MIL‐101(Cr)’s porosity and particle size are discussed. The selection of additives may be application‐specific: exemplified in the examination of MIL‐101(Cr)’s preparation, its corresponding water sorption capacity, and desiccant‐related applications.

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MIL-101(Cr)/graphene hybrid aerogel used as a highly effective adsorbent for wastewater purification

Cited by 25 publications

References 52 publications

TFN Membrane Fabricated by a Gyroid-like PE Support, a Basil Seed Mucilage–Fe(III) Interlayer, and a Polyamide Active Layer Incorporated with MIL-101(Cr)–NH₂ Nanoparticles

TFN Membrane Fabricated by a Gyroid-like PE Support, a Basil Seed Mucilage–Fe(III) Interlayer, and a Polyamide Active Layer Incorporated with MIL-101(Cr)–NH₂ Nanoparticles

Low-Temperature and Additive-Free Synthesis of Spherical MIL-101(Cr) with Enhanced Dye Adsorption Performance

Elucidating Improvements to MIL‐101(Cr)’s Porosity and Particle Size Distributions based on Innovations and Fine‐Tuning in Synthesis Procedures

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MIL-101(Cr)/graphene hybrid aerogel used as a highly effective adsorbent for wastewater purification

Cited by 25 publications

References 52 publications

TFN Membrane Fabricated by a Gyroid-like PE Support, a Basil Seed Mucilage–Fe(III) Interlayer, and a Polyamide Active Layer Incorporated with MIL-101(Cr)–NH2 Nanoparticles

TFN Membrane Fabricated by a Gyroid-like PE Support, a Basil Seed Mucilage–Fe(III) Interlayer, and a Polyamide Active Layer Incorporated with MIL-101(Cr)–NH2 Nanoparticles

Low-Temperature and Additive-Free Synthesis of Spherical MIL-101(Cr) with Enhanced Dye Adsorption Performance

Elucidating Improvements to MIL‐101(Cr)’s Porosity and Particle Size Distributions based on Innovations and Fine‐Tuning in Synthesis Procedures

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Product

Resources

About

TFN Membrane Fabricated by a Gyroid-like PE Support, a Basil Seed Mucilage–Fe(III) Interlayer, and a Polyamide Active Layer Incorporated with MIL-101(Cr)–NH₂ Nanoparticles

TFN Membrane Fabricated by a Gyroid-like PE Support, a Basil Seed Mucilage–Fe(III) Interlayer, and a Polyamide Active Layer Incorporated with MIL-101(Cr)–NH₂ Nanoparticles