NH2-MIL-125 (Ti)/biochar fibers for enhanced direct dyes adsorption

Jiang, Qiushi; Han, Zhaolian; Yu, Xiaobin; Yuan, Yafeng; Ren, Yating; Li, Jiapeng; Zhao, Chunli; Cheng, Zhiqiang

doi:10.1016/j.jece.2021.106636

Cited by 20 publications

(8 citation statements)

References 41 publications

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“…Titanium-based MIL-125 is a shining member of the remarkable MIL family that possesses excellent adsorption performance owing to excellent chemical stability, redox potential, and thermal stability (Fatima et al 2020 ). Interestingly, MIL-125(Ti) has revealed an enhanced adsorption performance toward pharmaceutical residues, organic dyes, and heavy metals (Jiang et al 2021 ; Liang et al 2018 ; Liu et al 2021 ; Omer et al 2021 ). However, the difficult separation of MIL-125(Ti) after the adsorption process with the traditional techniques is a big obstacle.…”

Section: Introductionmentioning

confidence: 99%

Adsorption of nitrophenol onto a novel Fe3O4-κ-carrageenan/MIL-125(Ti) composite: process optimization, isotherms, kinetics, and mechanism

El-Monaem

Eltaweil

Eldin

et al. 2023

Environ Sci Pollut Res

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Water pollution is a dreadful affair that has incessantly aggravated, exposing our planet to danger. In particular, the persistent nitro aromatic compound like nitrophenols causes anxiety to the researchers due to their hazardous impacts, excessive usage, and removal difficulty. For this purpose, a novel multi-featured composite was constructed based on κ-Carrageenan (κ-Carr), MOF (MIL-125(Ti)), and magnetic Fe3O4 for efficient adsorptive removal of o-nitrophenol (o-NP). Interestingly, BET measurements revealed the high surface area of Fe3O4-κ-Carr/MIL-125(Ti) of about 163.27 m2/g, while VSM showed its excellent magnetic property (20.34 emu/g). The comparison study pointed out the synergistic effect between Fe3O4, κ-Carr, and MIL-125(Ti), forming a composite with an excellent adsorption performance toward o-NP. The adsorption data obeyed pseudo-second-order kinetic model, and Freundlich isotherm model was better fitted than Langmuir and Temkin. Furthermore, Langmuir verified the supreme adsorption capacity of o-NP onto Fe3O4-κ-Carr/MIL-125(Ti) since the computed qmax reached 320.26 mg/g at pH 6 and 25 °C. Furthermore, the XPS results postulated that the adsorption mechanism pf o-NP proceeded via H-bonding, π-π interaction, and electron donor–acceptor interactions. Interestingly, Fe3O4-κ-Carr/MIL-125(Ti) composite retained good adsorption characteristics after reusing for five cycles, suggesting its viable applicability as an efficient, renewable, and easy-separable adsorbent for removing nitro aromatic pollutants.

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Section: Introductionmentioning

confidence: 99%

Adsorption of nitrophenol onto a novel Fe3O4-κ-carrageenan/MIL-125(Ti) composite: process optimization, isotherms, kinetics, and mechanism

El-Monaem

Eltaweil

Eldin

et al. 2023

Environ Sci Pollut Res

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“…Figure 11 b compares the adsorption capacity of P2P and P2 microcapsules with other dye adsorbents reported previously [ 60 , 61 , 62 , 63 , 64 , 65 , 66 , 67 , 68 , 69 , 70 , 71 , 72 , 73 , 74 , 75 , 76 ]. Clearly, both P2P and P2 microcapsules display the highest adsorption capacities for ROKG, DY5G, RhB and MB.…”

Section: Resultsmentioning

confidence: 87%

“… ( a ) Dye removal rate after three cycles of adsorption and desorption, ( b ) Comparison of some recently reported adsorbents with high maximum adsorption capacities to reactive orange, direct yellow, RhB and MB [ 60 , 61 , 62 , 63 , 64 , 65 , 66 , 67 , 68 , 69 , 70 , 71 , 72 , 73 , 74 , 75 , 76 ]. ( c , d ) SEM images of the P2P–ROKG micro-particles after three cycles of adsorption and desorption, ( e , f ) SEM images of the P2–MB micro-particles after three cycles of adsorption and desorption.…”

Section: Figures Scheme and Tablesmentioning

confidence: 99%

Rapid, Highly-Efficient and Selective Removal of Anionic and Cationic Dyes from Wastewater Using Hollow Polyelectrolyte Microcapsules

Zhao

Zhou²,

Han

et al. 2023

Molecules

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Herein, poly (allylamine hydrochloride) (PAH)/ poly (styrene sulfonic acid) sodium salt (PSS) microcapsules of (PAH/PSS)2PAH (P2P MCs) and (PAH/PSS)2 (P2 MCs) were obtained by a layer-by-layer method. The P2 MCs show high adsorption capacity for Rhodamine B (642.26 mg/g) and methylene blue (909.25 mg/g), with an extremely low equilibrium adsorption time (~20 min). The P2P MCs exhibited high adsorption capacities of reactive orange K-G (ROKG) and direct yellow 5G (DY5G) which were 404.79 and 451.56 mg/g. Adsorption processes of all dyes onto microcapsules were best described by the Langmuir isotherm model and a pseudo-second-order kinetic model. In addition, the P2P MCs loaded with reactive dyes (P2P–ROKG), could further adsorb rhodamine B (RhB) dye, and P2 MCs that had adsorbed cationic MB dyes could also be used for secondary adsorption treatment of direct dye waste-water, respectively. The present work confirmed that P2P and P2 MCs were expected to become an excellent adsorbent in the water treatment industry.

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“…In contrast, MÀ TiO 2 spheres exhibited an H1 hysteresis loop attributed to the type IV isotherm, which was associated with capillary coalescence in mesoporous materials. [13] Figure S2b showed the pore size by the Barrett-Joyner-Halenda (BJH) method, and the pore size of MÀ TiO 2 spheres was approximately 9-12 nm. The detailed results were listed in Table 1.…”

Section: Resultsmentioning

confidence: 99%

Selective Electroreduction of Oxalic Acid to Glycolic Acid by Mesoporous TiO₂ Spheres

Cheng

Hou

et al. 2023

ChemCatChem

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Reducing oxalic acid to glycolic acid electrochemically remains a significant challenge due to the high overpotential and low selectivity and stability. This study uses mesoporous TiO2 spheres of anatase phase as catalysts to reduce oxalic acid to glycolic acid with low overpotential. The maximum Faradaic efficiency of glycolic acid reaches 73.9 % at −0.5 V vs RHE. The mesoporous structure not only increases the specific surface area, but also limits the escape of intermediate glyoxalic acid from the catalyst surface due to the space‐limiting effect of the mesoporous channel, such that oxalic acid can be deeply reduced to glycolic acid. Moreover, a mechanism for oxalic acid reduction is proposed, and the Ti3+/Ti4+ redox pair plays an important role in the reduction of oxalic acid.

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NH2-MIL-125 (Ti)/biochar fibers for enhanced direct dyes adsorption

Cited by 20 publications

References 41 publications

Adsorption of nitrophenol onto a novel Fe3O4-κ-carrageenan/MIL-125(Ti) composite: process optimization, isotherms, kinetics, and mechanism

Adsorption of nitrophenol onto a novel Fe3O4-κ-carrageenan/MIL-125(Ti) composite: process optimization, isotherms, kinetics, and mechanism

Rapid, Highly-Efficient and Selective Removal of Anionic and Cationic Dyes from Wastewater Using Hollow Polyelectrolyte Microcapsules

Selective Electroreduction of Oxalic Acid to Glycolic Acid by Mesoporous TiO₂ Spheres

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NH2-MIL-125 (Ti)/biochar fibers for enhanced direct dyes adsorption

Cited by 20 publications

References 41 publications

Adsorption of nitrophenol onto a novel Fe3O4-κ-carrageenan/MIL-125(Ti) composite: process optimization, isotherms, kinetics, and mechanism

Adsorption of nitrophenol onto a novel Fe3O4-κ-carrageenan/MIL-125(Ti) composite: process optimization, isotherms, kinetics, and mechanism

Rapid, Highly-Efficient and Selective Removal of Anionic and Cationic Dyes from Wastewater Using Hollow Polyelectrolyte Microcapsules

Selective Electroreduction of Oxalic Acid to Glycolic Acid by Mesoporous TiO2 Spheres

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Selective Electroreduction of Oxalic Acid to Glycolic Acid by Mesoporous TiO₂ Spheres