Microwave-assisted synthesis of metal–organic framework MIL-47 for effective adsorptive removal of dibenzothiophene from model fuel

Mosavi, Seyed Hossein; Zare‐Dorabei, Rouholah; Bereyhi, Mohammad

doi:10.1007/s13738-020-02057-z

Cited by 24 publications

(13 citation statements)

References 39 publications

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“…It can be clearly seen from Table 3 that among the three kinetic models, the pseudo second‐order model has performed best ( R 2 − 1), while pseudo first‐order model and Elovich model due to lesser values of R 2 has been discarded. Also, MPSD value for pseudo second‐order model fitting was found lower as compared with pseudo first‐order and Elovich kinetic models for all studied concentrations (Mosavi et al, 2021b).…”

Section: Resultsmentioning

confidence: 93%

Adsorptive decontamination of doxycycline hydrochloride via Prosopis juliflora activated carbon: Parameter optimization and disposal study

Kaur

Singh

Rajor

2022

Water Environment Research

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This study deals with the removal of doxycycline hydrochloride (DOX) antibiotic, from aqueous environment by using Prosopis juliflora activated carbon (PJAC). PJAC was synthesized by chemical activation and pyrolysis of Prosopis juliflora. It was characterized by employing Fourier transform infrared spectroscopy (FTIR), scanning electron microscope‐energy dispersive X‐ray analysis (SEM–EDX), X‐ray diffraction analysis (XRD), and Brunauer–Emmett–Teller (BET) techniques. The specific surface area, pore volume, and pore diameter were evaluated as 320.45 m2/g, 0.176 cm3/g, and 2.65 nm, respectively. Different functional groups (O–H, C–O, C=C, C–N, and C–C) present on PJAC promoted the adsorption of DOX. The influence of various adsorption parameters suggested by central composite design (CCD) model was determined using response surface methodology (RSM), and interactive effects of these were optimized. The thermodynamic and kinetic studies performed at optimized conditions, exhibited that adsorption was spontaneous and endothermic. The experimental data were well described with Langmuir, Redlich–Peterson, and Freundlich isotherm models while kinetics data were well described by pseudo second order. The excellent interactions between the PJAC and DOX resulted maximum adsorption capacity as 57.11 mg/g. The adsorption mechanisms was dominated by normalπ‐ normalπ interactions and hydrogen bonding. Moreover, almost complete encapsulation of DOX was achieved by stabilization of exhausted PJAC. Practitioner Points A wild harmful plant Prosopis juliflora was used to synthesize a low‐cost and eco‐friendly bio‐sorbent PJAC. Adsorptive ability of PJAC was quantified for adsorption of DOX antibiotic from its aqueous solution. DOX uptake on PJAC was mainly governed by л‐л EDA interactions and hydrogen bonding.

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Section: Resultsmentioning

confidence: 93%

Adsorptive decontamination of doxycycline hydrochloride via Prosopis juliflora activated carbon: Parameter optimization and disposal study

Kaur

Singh

Rajor

2022

Water Environment Research

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“…Sampling was 1 mL at 7 mL intervals, and all eluents were collected and condensed into solids for refrigeration. The content of TGFs in EGB was taken as the ordinate and the elution volume as abscissa in the desorption dynamic curve. , …”

Section: Methodsmentioning

confidence: 99%

“…The content of TGFs in EGB was taken as the ordinate and the elution volume as abscissa in the desorption dynamic curve. 24,25 4.7. Desorption Technology of TGFs from Activated Carbon.…”

Section: Methodsmentioning

confidence: 99%

Optimizing the Desorption Technology of Total Flavonoids of Ginkgo Biloba from Separating Materials of Activated Carbon

Zhang

et al. 2021

ACS Omega

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Activated carbon adsorption is one of the processes used to produce ginkgolides from the extract of Ginkgo biloba (EGB) in most enterprises. However, the problem is that the ginkgolides can be eluted by ethanol after the Ginkgo biloba extracts are adsorbed by activated carbon, while total ginkgo flavonoids (TGFs) would form dead adsorption, leading to the ineffective utilization of TGFs. In this paper, the maximum adsorption capacity of TGFs by activated carbon was 226.7 mg/g activated carbon at pH 5, and the adsorption of TGFs was easier and more favorable to monolayer adsorption. On this basis, the technical process of desorption of TGFs from activated carbon preparation technology was optimized by using the response surface optimization technique. Under the optimum process (the elution volume was 116.75 mL, the ethanol concentration in the eluent was 73.4%, the elution temperature was 31.5 °C, and the ammonia concentration was 5.7%), the desorption rate of TGFs was 74.56%. Scanning electron microscopy morphological analysis showed that the used activated carbon had a wide pore size distribution, with the micropore pore size mainly concentrated around 0.64 and 1.00 nm and the mesopore pore size mainly concentrated between 2.89 and 39.5 nm. In addition, the molecular weight of ginkgo flavonoids is mainly distributed between 500 and 1000 Da, which can be transported to the micropores through the mesopore channels. On the other hand, there is a force between the flavonoids and the acidic oxygen-containing functional groups on the pore surface, which is the main reason for the formation of dead adsorption. The obtained results contribute to further improving the process of adsorbing and desorbing TGFs from EGB and lay a foundation for the development of more suitable activated carbon.

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“…Metal-organic frameworks (MOFs) are one of the adsorbents used in the adsorption process. [25] MOFs are also referred to as Coordination polymers, porous compounds whose pore size is in the range of mesoporous and micro-porous. Due to its unique surface adsorption properties and high surface area, the catalytic properties, selectivity, design variability have been considered.…”

Section: Introductionmentioning

confidence: 99%

Rapid and Effective Ultrasonic‐Assisted Adsorptive Removal of Congo Red onto MOF‐5 Modified by CuCl₂ in Ambient Conditions: Adsorption Isotherms and Kinetics Studies

2021

Self Cite

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In this study, ultrasonic-assisted removed Congo red by MOF-5/ Cu as a metal-organic framework, making the adsorption process very fast. Ultrasonic has proven to be a handy tool in accelerating dyes' adsorption by enhancing the adsorbent's affinity and the adsorbent. MOF-5 synthesized the solvothermal method and then modified it by CuCl 2 in ambient conditions. Scanning Electron Microscope (SEM), X-ray Diffraction (XRD), Fourier Transform Infrared (FT-IR), Brunauer-Emmett-Teller (BET), and Thermogravimetric analysis (TGA) were used for the identification structure and morphology of MOF-5/Cu. Sonication had an essential role in shortening the adsorption time (2 min) of Congo red by enhancing the dispersion of adsorbent (MOF-5) in solution. Congo red concentration was measured with a UV-visible spectrometer apparatus. Optimal values of Congo red concentration, Dosage of MOF-5/Cu, time, and pH were obtained by Central composite design. According to the optimal parameters, the adsorption process was very rapid. Removal of Congo red happened with excellent adsorption capacity (357.42 mg g À 1 ). Also, the MOF-5/Cu was regenerating by acetone five-time and show good results. Repeatability of the adsorption process was carried out, and the Relative Standard Deviation (RSD) was obtained 1.85 %.

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Microwave-assisted synthesis of metal–organic framework MIL-47 for effective adsorptive removal of dibenzothiophene from model fuel

Cited by 24 publications

References 39 publications

Adsorptive decontamination of doxycycline hydrochloride via Prosopis juliflora activated carbon: Parameter optimization and disposal study

Adsorptive decontamination of doxycycline hydrochloride via Prosopis juliflora activated carbon: Parameter optimization and disposal study

Optimizing the Desorption Technology of Total Flavonoids of Ginkgo Biloba from Separating Materials of Activated Carbon

Rapid and Effective Ultrasonic‐Assisted Adsorptive Removal of Congo Red onto MOF‐5 Modified by CuCl₂ in Ambient Conditions: Adsorption Isotherms and Kinetics Studies

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Microwave-assisted synthesis of metal–organic framework MIL-47 for effective adsorptive removal of dibenzothiophene from model fuel

Cited by 24 publications

References 39 publications

Adsorptive decontamination of doxycycline hydrochloride via Prosopis juliflora activated carbon: Parameter optimization and disposal study

Adsorptive decontamination of doxycycline hydrochloride via Prosopis juliflora activated carbon: Parameter optimization and disposal study

Optimizing the Desorption Technology of Total Flavonoids of Ginkgo Biloba from Separating Materials of Activated Carbon

Rapid and Effective Ultrasonic‐Assisted Adsorptive Removal of Congo Red onto MOF‐5 Modified by CuCl2 in Ambient Conditions: Adsorption Isotherms and Kinetics Studies

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Rapid and Effective Ultrasonic‐Assisted Adsorptive Removal of Congo Red onto MOF‐5 Modified by CuCl₂ in Ambient Conditions: Adsorption Isotherms and Kinetics Studies