Carbon-based materials as adsorbent for antibiotics removal: Mechanisms and influencing factors

Xiang, Yujia; Xu, Zhangyi; Wei, Yuyi; Zhou, Yaoyu; Yang, Xin; Yang, Yuan; Yang, Jian; Zhang, Jiachao; Luo, Lin; Zhou, Zhi

doi:10.1016/j.jenvman.2019.02.068

Cited by 320 publications

(109 citation statements)

References 150 publications

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“…In comparison with other approaches, adsorption is outstanding for its unique advantages like easy operation, low toxicity, low energy cost, as well as high removal efficiency at low concentrations (Han et al, 2019;Regkouzas and Diamadopoulos, 2019;Shaheen et al, 2019). There are numerous effective adsorbents such as activated carbon (Xiang et al, 2019), carbon nanotubes (Xiang et al, 2019), zeolite (Wang et al, 2019), chitosan (Ahamad et al, 2019), etc. However, those adsorbents are relatively unaffordable when dealing with large scale of wastewater.…”

Section: Introductionmentioning

confidence: 99%

Application of Biochar Derived From Pyrolysis of Waste Fiberboard on Tetracycline Adsorption in Aqueous Solution

Gao

Lin

et al. 2020

Front. Chem.

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In this study, biochars derived from waste fiberboard biomass were applied in tetracycline (TC) removal in aqueous solution. Biochar samples were prepared by slow pyrolysis at 300, 500, and 800 • C, and were characterized by ultimate analysis, Fourier transform infrared (FTIR), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), Brunauer-Emmett-Teller (BET), etc. The effects of ionic strength (0-1.0 mol/L of NaCl), initial TC concentration (2.5-60 ppm), biochar dosage (1.5-2.5 g/L), and initial pH (2-10) were systemically determined. The results present that biochar prepared at 800 • C (BC800) generally possesses the highest aromatization degree and surface area with abundant pyridinic N (N-6) and accordingly shows a better removal efficiency (68.6%) than the other two biochar samples. Adsorption isotherm data were better fitted by the Freundlich model (R 2 is 0.94) than the Langmuir model (R 2 is 0.85). Thermodynamic study showed that the adsorption process is endothermic and mainly physical in nature with the values of H 0 being 48.0 kJ/mol, S 0 being 157.1 J/mol/K, and G 0 varying from 1.02 to −2.14 kJ/mol. The graphite-like structure in biochar enables the π-π interactions with a ring structure in the TC molecule, which, together with the N-6 acting as electron donor, is the main driving force of the adsorption process.

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Section: Introductionmentioning

confidence: 99%

Application of Biochar Derived From Pyrolysis of Waste Fiberboard on Tetracycline Adsorption in Aqueous Solution

Gao

Lin

et al. 2020

Front. Chem.

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“…The pH values play an essential role in the adsorption by activated carbon. It is affecting the solubility of the adsorbate by changing the surface charge of the adsorbent [55].…”

Section: • Ph Valuementioning

confidence: 99%

Analysis on Preparation, Application, and Recycling of Activated Carbon to Aid in COVID-19 Protection

Reza

Hasan

Afroze

et al. 2020

IJIE

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Activated carbon (AC) is an extremely porous carbonaceous adsorptive substance which has a rigid carbon matrix with high surface area and broad functional groups. The structure is connected by chemical bonds; arranged irregularly, generating a highly porous arrangement of corners, crevices, claps, and cracks between the carbon layers. Activated carbons are produced high-temperature and chemical activation of waste biomass. The pores in the lattice network of activated carbon permit the removal of impurities from gaseous and liquid medium through adsorption. At present, the COVID-19 disease is the prime concern around the whole world because of its exponential infections and death rate. There is no medicine for this virus, and protection is the only remedy to survive from this contagious disease. Using a face mask is one of the best methods to get rid of COVID-19. The mask combined with activated carbon can be beneficial for adsorbing and disinfecting the virus as it is the versatile adsorbent for the elimination of the organic, inorganic, and pathogenic contaminants.

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“…However, unlike organic pollutants, which can be removed by adsorption and/or degradation (Xiang et al, 2020(Xiang et al, , 2019Tang et al, 2016), heavy metals in the subsurface can only be immobilized (Bello et al, 2019). While sulfidation increased the removal capacity of nZVI for cadmium and chromate from 40 to 85 mg/g (Su et al, 2015a) and 2.5-25 mg/g (Shao et al, 2018), respectively, the efficacy of nZVI/S-nZVI for metals remediation in the subsurface has not been comprehensively evaluated.…”

Section: Introductionmentioning

confidence: 99%

Comparison of the colloidal stability, mobility, and performance of nanoscale zerovalent iron and sulfidated derivatives

Jassby

Zhang

et al. 2020

Journal of Hazardous Materials

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Nanoscale zerovalent iron (nZVI) and sulfidated nanoscale zerovalent iron (S-nZVI) have been increasingly studied for heavy metal removal in the subsurface. However, a comprehensive comparison of the effectiveness of the technologies and the stability of derived metal-adsorbed composites is lacking. In this study, we evaluated the colloidal stability and transport of nZVI, S-nZVI and S-nZVI modified with nanosized silica (FeSSi). Furthermore, we monitored the metal immobilization performance of the three nanoparticles (NPs) under anoxic conditions in synthetic groundwater for 30 days. The NP-metal composites were thereafter discharged into a river water and metal remobilization was monitored for 20 days. Sulfidation improved the colloidal stability of nZVI in both simple media and in natural waters, although a lower initial agglomeration rate constant (k a) was observed in unmodified nZVI at acidic pH. The transport of nZVI in saturated soil column was enhanced with sulfidation due to decreased electrostatic attraction between the NPs and sand. The three NPs sequestered more than 80 % of Cu 2+ , Zn 2+ , Cd 2+ and Cr 2 O 7 2− from groundwater. Among the three NPs tested, S-nZVI had a slightly higher removal capacity for metals than nZVI in synthetic groundwater and the chemical stability of metalS -nZVI composites upon discharge into river water was the highest.

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Carbon-based materials as adsorbent for antibiotics removal: Mechanisms and influencing factors

Cited by 320 publications

References 150 publications

Application of Biochar Derived From Pyrolysis of Waste Fiberboard on Tetracycline Adsorption in Aqueous Solution

Application of Biochar Derived From Pyrolysis of Waste Fiberboard on Tetracycline Adsorption in Aqueous Solution

Analysis on Preparation, Application, and Recycling of Activated Carbon to Aid in COVID-19 Protection

Comparison of the colloidal stability, mobility, and performance of nanoscale zerovalent iron and sulfidated derivatives

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