Selective adsorption of Congo red and Cu(II) from complex wastewater by core-shell structured magnetic carbon@zeolitic imidazolate frameworks-8 nanocomposites

Xiong, Zikang; Zheng, Huaili; Hu, Yadan; Hu, Xuebin; Ding, Wei; Ma, Jie; Li, Yisen

doi:10.1016/j.seppur.2021.119053

Cited by 77 publications

(8 citation statements)

References 73 publications

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“…236 Li et al reported the excellent adsorption capacity (153.63 mg g −1 ) and reusability of Cu 2+ on sodium alginate@ZIF-67 hydrogels. 241 The high adsorption capacity of Cu 2+ on ZIF-8@GO (482.29 mg g −1 ) 243 was significantly higher than that of ZIF-8@C@Fe 3 O 4 (234.74 mg g −1 ), 244 ZIF-8@Fe 3 O 4 (33.48 mg g −1 ). 245…”

Section: Environmental Applicationmentioning

confidence: 94%

Recent advances in the application of zeolitic imidazolate frameworks (ZIFs) in environmental remediation: a review

Zhang

Yue

Xiao

et al. 2022

Environ. Sci.: Nano

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Section: Environmental Applicationmentioning

confidence: 94%

Recent advances in the application of zeolitic imidazolate frameworks (ZIFs) in environmental remediation: a review

Zhang

Yue

Xiao

et al. 2022

Environ. Sci.: Nano

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“…where K F (L•mg −1 ) is the rate constant of the Freundlich model and C e is the equilibrium concentration. The Temkin adsorption isothermal assumed chemisorption, and the expression for the Temkin model is equation (8) [28]…”

Section: Adsorption Isotherms Of Mb Ontomentioning

confidence: 99%

Preparation of magnetic cobalt-cuprum-zinc ferrite nanoparticles and their adsorption mechanism of methyl blue

Ouyang¹,

Pan²,

Liu³

et al. 2022

Mater. Res. Express

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Magnetic cobalt-cuprum-zinc ferrites were prepared from anhydrous ethanol using the combustion method, and their structure and properties were characterized using the XRD, SEM, EDS, and VSM techniques, and its formation mechanism was discussed. The magnetic Co0.4Cu0.2Zn0.4Fe2O4 nanoparticles calcined at 400 oC with 25 mL anhydrous ethanol were used for the removal of methyl blue (MB). The results showed that the pseudo-second-order kinetic model best agreed with the adsorption method. In addition, analysis of the adsorption isotherms using the Freundlich, Langmuir, and Temkin models showed that theTemkin model was most consistent with experimental results, which revealed that the adsorption of MB onto the Co0.4Cu0.2Zn0.4Fe2O4 nanoparticles was a multi-molecular layer chemisorption. Further, the influence of pH on the adsorption capacity was evaluated and was highest at pH 11. The cyclability and removal rate of the nanoparticles were explored. The removal rate was approximately 80% after 7 cycles, revealing that the magnetic CoxCuyZn(1-x-y)Fe2O4 nanoparticles are important for wastewater treatment.

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“…Waste water produced from the plants can cause environmental pollution, one of the most serious causes for the worst environmental problems is dye wastewater 1 . In addition, owing to the potentially cancer‐causing properties and the toxicity of the dyes, wastewater from the dye produced in factories has seriously polluted the surrounding environment and threatened human health, even at low concentrations 2 . Among all kinds of water pollutants in wastewater, organic compounds are fatal to human health 3 .…”

Section: Introductionmentioning

confidence: 99%

“…1 In addition, owing to the potentially cancer-causing properties and the toxicity of the dyes, wastewater from the dye produced in factories has seriously polluted the surrounding environment and threatened human health, even at low concentrations. 2 Among all kinds of water pollutants in wastewater, organic compounds are fatal to human health. 3 Therefore, dyes need to be removed before the wastewater is discharged into the environment.…”

Section: Introductionmentioning

confidence: 99%

Superior adsorption of methyl blue on magnetic Ni–Mg–Co ferrites: Adsorption electrochemical properties and adsorption characteristics

Chen

Wang

et al. 2022

Env Prog and Sustain Energy

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The harm and treatment of methyl blue (MB) were described, and the necessity for the removal of MB by magnetic nanomaterials was explained. Magnetic Ni-Mg-Co ferrites were prepared by the rapid combustion approach of an active nitrate solution and characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), Fourier transform infrared spectrometer (FTIR), energy dispersive spectroscopy, and vibrating sample magnetometer. Magnetic Ni 0.1 Mg 0.7 Co 0.2 Fe 2 O 4 nanoparticles prepared at 400 C with the saturation magnetization of 19.7 emu g À1 and the average diameter of about 15.2 nm were used to adsorb MB from the aqueous medium. The Brunauer-Emmett-Teller (BET) analysis showed that the specific surface area was 143.17 m 2 g À1 and the average pore size was 9.44 nm. The adsorption mechanism of MB onto magnetic Ni 0.1 Mg 0.7 Co 0.2 Fe 2 O 4 nanoparticles was studied, and the results revealed that the adsorption properties conformed the pseudo-second-order kinetics model due to the square deviation values (R 2 > 0.98), and Temkin model could describe the adsorption state of MB onto Ni 0.1 Mg 0.7 Co 0.2 Fe 2 O 4 nanoparticles, which suggested that the adsorption of MB onto Ni 0.1 Mg 0.7 Co 0.2 Fe 2 O 4 nanoparticles was monolayer-multilayer hybrid chemisorption mechanism. When the pH value exceeded 3, the adsorbance reached large value; while, the adsorbance was 97.6% of the initial adsorption value for seven cycles. The electrochemical impedance spectroscopy and cyclic voltammetry curves of MB adsorbed onto the nanoparticles before and after the adsorption were determined.

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Selective adsorption of Congo red and Cu(II) from complex wastewater by core-shell structured magnetic carbon@zeolitic imidazolate frameworks-8 nanocomposites

Cited by 77 publications

References 73 publications

Recent advances in the application of zeolitic imidazolate frameworks (ZIFs) in environmental remediation: a review

Recent advances in the application of zeolitic imidazolate frameworks (ZIFs) in environmental remediation: a review

Preparation of magnetic cobalt-cuprum-zinc ferrite nanoparticles and their adsorption mechanism of methyl blue

Superior adsorption of methyl blue on magnetic Ni–Mg–Co ferrites: Adsorption electrochemical properties and adsorption characteristics

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