Iron doped zeolitic imidazolate framework (Fe-ZIF-8): synthesis and photocatalytic degradation of RDB dye in Fe-ZIF-8

Thanh, Mai Thị; Thien, Tran Vinh; Du, Pham Dinh; Hùng, Nguyễn Phi; Khiếu, Đinh Quang

doi:10.1007/s10934-017-0498-7

Cited by 108 publications

(56 citation statements)

References 41 publications

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“…Recently, anh et al [14] reported that iron doping to ZIF-8 signi cantly enhances RDB adsorption capacity. Fe-ZIF-8 also exhibits photocatalytic degradation of RDB under visible light [15].…”

Section: Introductionmentioning

confidence: 99%

Metal-Organic Framework-101 (MIL-101): Synthesis, Kinetics, Thermodynamics, and Equilibrium Isotherms of Remazol Deep Black RGB Adsorption

Châu¹,

MinhThanh

et al. 2018

Journal of Chemistry

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In the present paper, the synthesis of metal-organic framework-101 (MIL-101) and Remazol Deep Black RGB (RDB) adsorption on MIL-101 were demonstrated. The kinetics of RDB adsorption on MIL-101 was studied using Weber’s intraparticle diffusion model and the pseudo-first- and pseudo-second-order kinetic models. Particularly, the statistical method of piecewise linear regression and multi-nonlinear regression was employed to analyse the adsorption data according to the previously mentioned kinetic models. The results indicated that the adsorption process followed the three-step pseudo-first-order kinetic equation, which was consistent with the results of the intraparticle diffusion model with three linear segments. This model best described the experimental data. In addition, the adsorption isotherm data were studied using five adsorption models, namely, Langmuir, Freundlich, Redlich–Peterson, Toth, and Sips in nonlinear forms, and the Langmuir model is the most appropriate for the experimental data. The values of energies of activation of adsorption were calculated, and they revealed that the adsorption process was of endothermic chemical nature. A statistical comparison using Akaike information criterion to estimate the goodness of fit of the kinetic and isotherm models was presented.

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Section: Introductionmentioning

confidence: 99%

Metal-Organic Framework-101 (MIL-101): Synthesis, Kinetics, Thermodynamics, and Equilibrium Isotherms of Remazol Deep Black RGB Adsorption

Châu¹,

MinhThanh

et al. 2018

Journal of Chemistry

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“…Biosorption of an azo dye by growing fungi (Aspergillus flavus) was reported in which the removal of chemical oxygen demand (COD) was found to be 90% at 100 mg•L -1 initial concentration of dye [5]. The introduction of iron to ZIF-8 significantly enhanced the photocatalytic degradation of RBB Fe-ZIF-8 under visible light [6].…”

Section: Introductionmentioning

confidence: 99%

Metal-Organic Framework MIL-101: Synthesis and Photocatalytic Degradation of Remazol Black B Dye

Thanh

et al. 2019

Journal of Nanomaterials

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In the present paper, the synthesis of metal-organic framework MIL-101 and its application in the photocatalytic degradation of Remazol Black B (RBB) dye have been demonstrated. The obtained samples were characterized by X-ray diffraction (XRD), transmission electron microscope (TEM), X-ray photoelectron spectroscopy (XPS), and nitrogen adsorption/desorption isotherms at 77 K. It was found that MIL-101 synthesized under optimal conditions exhibited high crystallinity and specific surface area (3360 m2·g-1). The obtained MIL-101 possessed high stability in water for 14 days and several solvents (benzene, ethanol, and water at boiling temperature). Its catalytic activities were evaluated by measuring the degradation of RBB in an aqueous solution under UV radiation. The findings show that MIL-101 was a heterogeneous photocatalyst in the degradation reaction of RBB. The mechanism of photocatalysis was considered to be achieved by the electron transfer from photoexcited organic ligands to metallic clusters in MIL-101. The kinetics of photocatalytic degradation reaction were analyzed by using the initial rate method and Langmuir-Hinshelwood model. The MIL-101 photocatalyst exhibited excellent catalytic recyclability and stability and can be a potential catalyst for the treatment of organic pollutants in aqueous solutions.

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“…Solvents play an important role in the ZIF-8 synthesis. Earlier studies reported that ZIF-8 can be formed in different solvents: DMF [19,21], methanol [2,[10][11][12][13][14], and water [25]. erefore, in our experiment, the effects of different solvents (methanol, DMF, water, and toluene) on the ZIF-8 formation were investigated in detail.…”

Section: Effects Of Solventsmentioning

confidence: 87%

“…In previous studies, ZIF-8 is synthesized in DMF at high temperature and pressure [2,3]. ZIF-8 can also be synthesized in methanol at room temperature under normal pressure [2,[10][11][12][13][14]. In these two approaches, the solvents and temperature/pressure have a critical role in the formation of ZIF-8.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Structural Properties and Catalytic Activities in Knoevenagel Condensation Reaction of Zeolitic Imidazolate Framework-8 Synthesized under Different Conditions

Thanh²,

Hiếu

2019

Advances in Materials Science and Engineering

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In the present study, the zeolitic imidazolate framework-8 (ZIF-8) was synthesized at both room temperature and high temperatures. The effects of solvents, molar ratios of precursors, reaction time, and temperature on the structural properties of the as-prepared materials were investigated. Moreover, the surface morphologies of the obtained specimens were characterized using X-ray diffraction, scanning electron microscopy, Fourier-transform infrared spectroscopy, and nitrogen adsorption methods. The results show that ZIF-8 was formed in methanol and water at room temperature and in dimethylformamide (DMF) at high temperatures. Further, in methanol, the molar ratios of precursors and reaction time have negligible effects on the morphologies and structures of ZIF-8; however, in DMF, the reaction temperature has a significant influence on the microstructures of ZIF-8. The catalytic activities of the obtained materials were evaluated using the Knoevenagel condensation reaction, and ZIF-8 proves to be an excellent solid base catalyst.

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Iron doped zeolitic imidazolate framework (Fe-ZIF-8): synthesis and photocatalytic degradation of RDB dye in Fe-ZIF-8

Cited by 108 publications

References 41 publications

Metal-Organic Framework-101 (MIL-101): Synthesis, Kinetics, Thermodynamics, and Equilibrium Isotherms of Remazol Deep Black RGB Adsorption

Metal-Organic Framework-101 (MIL-101): Synthesis, Kinetics, Thermodynamics, and Equilibrium Isotherms of Remazol Deep Black RGB Adsorption

Metal-Organic Framework MIL-101: Synthesis and Photocatalytic Degradation of Remazol Black B Dye

Evaluation of Structural Properties and Catalytic Activities in Knoevenagel Condensation Reaction of Zeolitic Imidazolate Framework-8 Synthesized under Different Conditions

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