Cobalt oxide loaded graphitic carbon nitride as adsorptive photocatalyst for tetracycline removal from aqueous solution

Niu, Jinye; Xie, Yi; Luo, Haiqiong; Wang, Qian; Zhang, Yongkui; Wang, Yabo

doi:10.1016/j.chemosphere.2018.11.111

Cited by 38 publications

(3 citation statements)

References 53 publications

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“…Esra et al [ 18 ] synthesized a magnetic activated carbon (AC) (Fe-AC) for the effective removal of Methylene Blue (MB) by means of adding the iron oxide to the AC obtained by the ZnCl 2 activation of acorn shell. Biochars are carbon-rich materials made from heating biomass in a little-or-no-oxygen atmosphere at relatively low temperatures (<700 °C), which is regarded as an environmentally friendly adsorbent for pollutant removals such as oxytetracycline, polycyclic aromatic hydrocarbon, and polychlorinated biphenyls [ 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 ]. Magnetic biochars could be formed by introducing transition-metal oxides (Fe, Co, Ni) into biochar matrices by the hydrothermal method, the sol-gel method, the dielectrophoresis method, and so on, which are effective strategies to recycle the powder and avoid the magnetic agglomeration of nanometal oxides [ 28 , 29 , 30 , 31 ].…”

Section: Introductionmentioning

confidence: 99%

Magnetic-Transition-Metal Oxides Modified Pollen-Derived Porous Carbon for Enhanced Absorption Performance

Tai

Liu

et al. 2022

IJERPH

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In our work, the transition-metal-oxide precursor (TMO@BC, M = Fe, Co, Ni) has been loaded on the pollen carbon by the hydrothermal method and annealed at different temperatures to generate a composite material of metal oxide and pollen carbon in this study, which can effectively prevent agglomeration caused by a small size and magnetism. The XRD patterns of the samples showed that the as-synthesized metal oxides were γ-Fe2O3, CoO, and NiO. In the 20 mg/L methyl orange adsorption experiment, the adsorption amount of CoO@C at 500 ℃ reached 19.32 mg/g and the removal rate was 96.61%. Therefore, CoO@C was selected for the adsorption correlation-model-fitting analysis, which was in line with the secondary reaction. The pseudo-second-order kinetic model (R2: 0.9683–0.9964), the intraparticle diffusion model, and the Freundlich adsorption isotherm model indicated that the adsorption process was the result of both physical and chemical adsorptions, and the judgment was based on the electrostatic action. The adsorption and removal efficiency of ciprofloxacin (CIP) by changing the pH of the reaction was about 80%, so the electrostatic attraction worked, but not the main factor. Recovered by an external magnetic field, the three-time recycling efficiency was still maintained at more than 80%. This novel biomass-derived magnetic porous carbon material embedded with transition-metal-oxide nanoparticles is highly promising for many applications, especially in the field of environmental remediation.

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Section: Introductionmentioning

confidence: 99%

Magnetic-Transition-Metal Oxides Modified Pollen-Derived Porous Carbon for Enhanced Absorption Performance

Tai

Liu

et al. 2022

IJERPH

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“…Several techniques have been widely used for removal of various antibiotics from aqueous solutions including Ozonation [13,14], Advanced oxidation processes [15], Photo-catalytic degradation [16][17][18], Coagulation [19,20], and Adsorption [21][22][23]. However, it possess a numerous obstacles including low efficiency, complicated operation, and toxic by-product generation [1].…”

Section: Introductionmentioning

confidence: 99%

Adsorption of Tetracycline Antibiotic from Aqueous solutions using Natural Iraqi Bentonite

Khalaf

Al-Mahmoud

2021

Egypt. J. Chem.

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Natural Iraqi bentonite was employed in this study as inexpensive adsorbent for the removal of Tetracycline hydrochloride antibiotic from aqueous solutions. The removal of about 90% of the Tetracycline was achieved under the optimum adsorption conditions of 2 h equilibrium time, 0.2 g bentonite dose, 20 mg/L initial Tetracycline concentration, and at a pH between 6 and 7. The thermodynamic investigation was carried out at various temperatures ranging between 20-40 °C. The resulted thermodynamic parameters emphasize a decrease of the randomness, an exothermic, and a spontaneous nature of the adsorption process arising from the negative values of the entropy change, the enthalpy change, and the Gibbs free energy change, respectively. The kinetic studies showed that the pseudo-second order model could fulfill a better fit of the experimental data, and more than one process would influenced the diffusion of tetracycline from the solution into the bentonite. The Isotherm studies reveals that Langmuir model provided a best fit to the isotherm curve, with a maximum adsorption capacity of 23.69 mg g -1 . The results suggest that Natural Iraqi bentonite can be used as a cost-effective adsorbent for the removal of Tetracycline hydrochloride from aqueous mediums.

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“…Therefore, from an environmental and safety perception, the removal of these types of toxic pollutants from wastewater is an important research topic. Several treatment methods such as adsorption [1][2][3][4][5][6][8][9][10], ionexchange [7], photocatalytic degradation [12,16,17], and biodegradation [18] have been developed for the removal of pollutants from wastewater. Among them, adsorption is highly regarded as a feasible, economical, and environmentally friendly approach for pollutants removal.…”

Section: Introductionmentioning

confidence: 99%

Efficient removal of tetracycline hydrochloride from aqueous solution by mesoporous cage MOF-818

Zhang

Ding

et al. 2020

SN Appl. Sci.

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MOF-818, a mesoporous cage metal-organic framework, was investigated for the removal of tetracycline hydrochloride (TC) from aqueous environment. The product was characterized by XRD, BET, FESEM, FT-IR, XPS and TGA. The influence of different parameters such as solution pH, contact time, temperature, adsorption dosage, initial TC concentration on the adsorption capacity was investigated. The as-prepared MOF-818 showed rapid removal of TC and with maximum saturated adsorption capacity calculated to be 442.5 mg g −1 at pH 3.32, 323 K. The adsorption isotherms were fitted by Langmuir, and Freundlich models. The kinetic data was analyzed by pseudo-first-order, pseudo-second-order, and intraparticle diffusion models. The TC adsorption process followed pseudo-second-order kinetics and best fitted the Langmuir adsorption model. The thermodynamic data showed that the adsorption was a spontaneous and endothermic reaction. A mechanism for TC adsorption was proposed and the chemisorption and π-π interaction was believed to direct the interaction between MOF-818 and TC molecules.

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Cobalt oxide loaded graphitic carbon nitride as adsorptive photocatalyst for tetracycline removal from aqueous solution

Cited by 38 publications

References 53 publications

Magnetic-Transition-Metal Oxides Modified Pollen-Derived Porous Carbon for Enhanced Absorption Performance

Magnetic-Transition-Metal Oxides Modified Pollen-Derived Porous Carbon for Enhanced Absorption Performance

Adsorption of Tetracycline Antibiotic from Aqueous solutions using Natural Iraqi Bentonite

Efficient removal of tetracycline hydrochloride from aqueous solution by mesoporous cage MOF-818

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