Removal and removing mechanism of tetracycline residue from aqueous solution by using Cu-13X

Lv, Junmin; Ma, Yulong; Xuan, Chang; Fan, Shangwu

doi:10.1016/j.cej.2015.03.080

Cited by 42 publications

(14 citation statements)

References 40 publications

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“…Nanosheets. e thermodynamic equilibrium constant K for the adsorption was calculated from the intercept determined by plotting ln (q e /C e ) vs. q e using the method of Khan and Singh [27]. e standard free energy change ΔG was calculated using the following equation:…”

Section: Adsorption Ermodynamics Of Zif-8/gomentioning

confidence: 99%

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Molecular Sieving Film Prepared by Vacuum Filtration for the Efficient Removal of Tetracycline Antibiotics from Pharmaceutical Wastewater

Song

et al. 2019

Advances in Materials Science and Engineering

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The pharmaceutical wastewater (PW) produced during the production of antibiotics has a huge impact on the ecological environment. The efficient removal of residual antibiotics from PW has become a great challenge. Here, a ZIF-8/GO composite film, a new material, was prepared by loading ZIF-8/GO nanosheets onto the surface of a polyethyleneimine- (PEI-) modified nylon microporous support. This new material can effectively remove tetracycline (TC) from PW with a removal rate of 99%. In addition, the layer of ZIF-8/GO nanosheets on the surface of the carrier had certain defect sites. This feature not only made the film have a relatively high flux (502 L·m−2·h−1·bar−1) but also overcame the disadvantages of the traditional membrane separation technology, such as the high operation pressure required by the easy plugging of micropores. More importantly, the abovementioned advantages enable the novel material to be applied on a larger scale. A probable adsorption mechanism was investigated and suggested.

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Section: Adsorption Ermodynamics Of Zif-8/gomentioning

confidence: 99%

“…where ΔG represents the Gibbs energy change, R represents the molar gas constant, T represents the absolute temperature, and K represents the same as indicated above [27]. e enthalpy change ΔH and entropy change ΔS were calculated according to the following equation [24]:…”

Section: Adsorption Ermodynamics Of Zif-8/gomentioning

confidence: 99%

Molecular Sieving Film Prepared by Vacuum Filtration for the Efficient Removal of Tetracycline Antibiotics from Pharmaceutical Wastewater

Song

et al. 2019

Advances in Materials Science and Engineering

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“…Among the most commonly used antibiotics are tetracyclines 3 , which has high antimicrobial activity associated it's the aromatic structure that containing the naphthol chemical group that is antibacterial 4 . However, approximately 50-90% of the doses of tetracyclines administered in health treatment procedures are not absorbed by organisms and are eliminated by humans and animals in sewage systems [5][6][7] . Tetracycline molecules have a complex chemical structure and the natural environmental and sewage conditions are not sufficient to decompose their chemical structure.…”

Section: Introductionmentioning

confidence: 99%

Obtaining of Fe3O4@C Core-Shell Nanoparticles as an Adsorbent of Tetracycline in Aqueous Solutions

et al. 2019

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Tetracycline is used to treat various diseases in animals and humans, so its high use causes this substance to be frequently found in effluents and in potable water reservoirs, causing serious problems for human health and the environment. Many processes are applied and evaluated in an attempt to removal tetracycline found in environment, such as adsorption. The application of iron-carbon nanoparticles with core-shell structure (Fe 3 O 4 @C) as adsorbent, can be an alternative to removal of these contaminants. In the present study Fe 3 O 4 @C nanoparticles were synthesized and used to adsorb tetracycline in aqueous solutions. The core-shell characterization was performed using X-ray diffraction techniques, infrared spectroscopy, surface area, chemical analysis and morphology, and adsorption capacity through isotherms. The results indicated that Fe 3 O 4 @C nanoparticles presented good tetracycline removal capability, 73.3%, when applied an initial concentration of antibiotic of the 30 mg L-1 and 0.5 g of adsorbent.

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Section: Introductionmentioning

confidence: 99%

“…Therefore, it is very important and urgent to degrade and remove antibiotic residue in the environment. Recently, many experiments have been carried out to remove antibiotic residues in waste water and animal excreta using composting [8,9], activated sludge [10], microbial degradation [11], and adsorption [12]. Ma et al [11] isolated a tylosin-degrading strain, Citrobacter amalonaticus, and found it was capable of degrading almost 100% of tylosin in pharmaceutical solid waste with an initial concentration of 50 mg L 21 after 72 h of incubation.…”

Section: Introductionmentioning

confidence: 99%

Enzymatic degradation and metabolic product of tylosin residue using enzyme extracted from Burkholderia vietnamiensis strain

Wang

Zhang

et al. 2017

Env Prog and Sustain Energy

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The aims of this study were to extract a tylosin‐degrading enzyme from Burkholderia vietnamiensis and to investigate the enzymatic degradation of tylosin and metabolic product formed. The results showed that the enzyme was extracted and purified to homogeneity with 23.5‐fold purification and a specific activity equal to 247.1 U mg−1 protein. This enzyme with a concentration of 1000 U mL−1 could degrade 100% of 200 mg L−1 tylosin after 180 min of incubation at 35°C. The toxicity of metabolites was lower than that of parent compound. The degradation kinetics followed an empirical model of the natural logarithm of concentration versus the natural logarithm of time, and the calculated half‐lives were about 3.54–3.91 min when the initial concentrations of tylosin ranged from 200 to 600 mg L−1. The enzymatic reaction of tylosin degradation could be well described using Michaelis‐Menten equation, and values of Michaelis constant and maximum velocity were 326.91 µmol L−1 and 16.08 µmol L−1 min−1, respectively. High‐performance liquid chromatography and mass spectrum indicated that tylosin was degraded into two metabolites. The pathway of enzymatic degradation might be that tylosin A was firstly transformed to tylosin B, and then the hydrolysis of lactone bond and the reduction of aldehyde group occurred. These results may provide the basis for biotreatment and removal of tylosin residue in solid and liquid wastes. © 2017 American Institute of Chemical Engineers Environ Prog, 36: 879–886, 2017

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Removal and removing mechanism of tetracycline residue from aqueous solution by using Cu-13X

Cited by 42 publications

References 40 publications

Molecular Sieving Film Prepared by Vacuum Filtration for the Efficient Removal of Tetracycline Antibiotics from Pharmaceutical Wastewater

Molecular Sieving Film Prepared by Vacuum Filtration for the Efficient Removal of Tetracycline Antibiotics from Pharmaceutical Wastewater

Obtaining of Fe3O4@C Core-Shell Nanoparticles as an Adsorbent of Tetracycline in Aqueous Solutions

Enzymatic degradation and metabolic product of tylosin residue using enzyme extracted from Burkholderia vietnamiensis strain

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