Adsorptive decontamination of antibiotics from livestock wastewater by using alkaline-modified biochar

Zhao, Haiyan; Wang, Ziqian; Liu, Yonghong; Wu, Tianxiang; Chen, Yiliang; Yan, Jiawei; Zhu, Yiping; Ding, Dahu

doi:10.1016/j.envres.2023.115676

Cited by 55 publications

(11 citation statements)

References 46 publications

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“…As shown in Table 2, [38][39][40] the integrated method minimized the loss of the noncarbon atoms, which is accelerated by the conventional twostep method. Compared to the raw material (typha), the total hydrogen, nitrogen, and oxygen contents of the samples after charring (TBT) were reduced by 23.55%.…”

Section: Elemental Analysismentioning

confidence: 99%

Functionalized typha biochar for antibiotic removal via low‐carbon integrated method: Performance and mechanism analyses

Liu,

Wen,

et al. 2024

CLEAN Soil Air Water

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Antibiotic residues in water represent an urgent environmental challenge. To efficiently remove these residues, a low‐carbon integrated biochar synthesis method was proposed, and an optimized typha biochar (TBIK) was prepared. Compared with the biochar prepared by a conventional two‐step carbonization and activation method (TBTK), the TBIK preparation process reduced energy consumption by 43849.58 J and cut carbon dioxide emissions by 32.80%. TBIK exhibited a large surface area of 1252.40 m2/g and rapidly achieved an equilibrium removal efficiency of 99.95% within 20 min for simulated antibiotics wastewater. Furthermore, TBIK possessed more number of functional groups than TBTK, especially O‐H and C‐S groups. The adsorption stability and tolerance of TBIK in solutions with different ionic strengths and coexisting anions were examined. Characterization techniques such as scanning electron microscopy (SEM), Fourier transform infrared (FT‐IR), and X‐ray photoelectron spectroscopy (XPS) as well as Brunauer, Emmett and Teller (BET) analyses were employed to elucidate the morphology and adsorption mechanism of the adsorbent. The microporous structure and abundance of functional groups are key to the excellent adsorption capabilities of TBIK. Thus, this integrated method for biochar production, optimized for treating antibiotic wastewater, holds significant potential for future applications.

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Section: Elemental Analysismentioning

confidence: 99%

Functionalized typha biochar for antibiotic removal via low‐carbon integrated method: Performance and mechanism analyses

Liu,

Wen,

et al. 2024

CLEAN Soil Air Water

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“…With global demand for the stress on comprehensive, sustainable, and coordinated development and improved quality of life, − water pollution caused by organic chemicals is one of the serious issues to be urgently solved. − Chlortetracycline (CTC), as one of the most used and produced antibiotics, was released without satisfying sewage discharge standards and accumulated in the water ecological environment. − In some bodies of water, the concentration of CTC is as large as μg/L, resulting in the formation of drug-resistance bacteria and posing a serious threat to the ecological environment and human health. − Consequently, it is significantly urgent to explore a high-efficiency and eco-friendly technology to degrade these organic pollution. − …”

Section: Introductionmentioning

confidence: 99%

Spatial Confinement of Co Nanoparticles in N-Doped Carbon Nanorods for Wastewater Purification via CaSO₃ Activation

Pang,

Yan,

Zhang

et al. 2024

Inorg. Chem.

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Spatial confinement of organic pollutants and reactive oxygen species (e.g., SO 4•− and • OH) with ultrashort lifetime inside the scale of chemical theoretical diffusion could provide a greatly promising strategy to overcome the limitation of mass transfer in the heterogeneous Fenton-like oxidation process. Herein, we first reported spatial confinement of cobalt nanoparticles in N-doped carbon nanorods (Co-NCNRs), by encapsulating Co nanoparticles into Ndoped carbon nanorods, in activating CaSO 3 for antibiotic degradation. Compared to Na 2 SO 3 and NaHSO 3 , CaSO 3 could slowly and persistently discharge SO 3 2− due to its low solubility, thus avoiding the depletion of the generated SO 3•− and • OH under the high concentration of sulfite ions. Fully physical characterizations confirmed that the 3D hydrogel was mostly transformed into the nanorod structure of Co-NCNRs at 550 °C. Co atoms were successfully nanoconfined into N-doped carbon nanorods, which contributes to mass transfer and prevents the agglomeration of Co nanoparticles, thus enhancing its catalytic activity and stability in activating CaSO 3 for water decontamination. The catalytic performance, kinetic research, influences of inorganic anions, pH, and degradation mechanism of chlortetracycline degradation catalyzed by the Co-NCNRs/CaSO 3 system have been studied in detail. This work not only proposed a facile method for synthesis of nanoconfined catalyst but also provided an excellent Co-NCNRs/ CaSO 3 system for wastewater treatment.

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“…Emerging pollutants (EPs) including antibiotics, microplastics, and endocrine-disrupting compounds have a permanent detrimental effect on water quality and ecology in case of improper disposal. , Attributes of these compounds such as complex formula, poor biocompatibility, and chemical inertness are challenging traditional water treatment technologies for mitigating water contamination. , Therefore, the need of developing potent approaches that can be applied to eliminate EPs from water sources is pressing …”

Section: Introductionmentioning

confidence: 99%

Toward Practical Water Decontaminations via Peroxymonosulfate Nonradical Oxidation: The Role of Cocatalyst MoS₂ with Sulfur Vacancies

Li,

Huo,

et al. 2023

ACS EST Eng.

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Molybdenum disulfide (MoS2) is a prevalent cocatalyst for peroxymonosulfate (PMS) activation with iron-based materials. The contribution of molybdenum atoms in cocatalyst MoS2 to iron regeneration during PMS activation has been broadly known, though the role of sulfur atoms remains explored. Here, we applied a one-step, facile means to prepare particulate Fe3O4 supported by wrinkled MoS2 with discernible sulfur vacancies (SV), forming a flower-like Fe3O4–MoS2 composite catalyst. We demonstrated, for the first time, a strong affinity of SV to PMS, facilitating the formation of an intermediate FeIII–PMS* while modulating the generation of pivotal nonradical species. Using an extensive characterization, we confirmed the simultaneous generation of high-valent iron-oxo species (FeIVO) and singlet oxygen (1O2) during PMS activation with the Fe3O4–MoS2 catalysts. In addition, we proposed that the FeIVO stemmed from the FeIII–PMS* precursor, which underwent heterolytic cleavage of the O–O bonds and concomitant rearrangement of oxygen atoms. Meanwhile, 1O2 is excited by PMS and formed by active oxygen (O*) liberated from iron oxides. Consequently, the Fe3O4–MoS2 catalysts showed impressive performance in removing typical micropollutants from real water sources, such as secondary effluent from wastewater treatment plants, tap water, and surface water stream. Our study provides new insights into a nonradical pathway for PMS activation with Sv-containing MoS2, clearing the way for developing high-performance MoS2 catalysts for water decontamination.

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Adsorptive decontamination of antibiotics from livestock wastewater by using alkaline-modified biochar

Cited by 55 publications

References 46 publications

Functionalized typha biochar for antibiotic removal via low‐carbon integrated method: Performance and mechanism analyses

Functionalized typha biochar for antibiotic removal via low‐carbon integrated method: Performance and mechanism analyses

Spatial Confinement of Co Nanoparticles in N-Doped Carbon Nanorods for Wastewater Purification via CaSO₃ Activation

Toward Practical Water Decontaminations via Peroxymonosulfate Nonradical Oxidation: The Role of Cocatalyst MoS₂ with Sulfur Vacancies

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Adsorptive decontamination of antibiotics from livestock wastewater by using alkaline-modified biochar

Cited by 55 publications

References 46 publications

Functionalized typha biochar for antibiotic removal via low‐carbon integrated method: Performance and mechanism analyses

Functionalized typha biochar for antibiotic removal via low‐carbon integrated method: Performance and mechanism analyses

Spatial Confinement of Co Nanoparticles in N-Doped Carbon Nanorods for Wastewater Purification via CaSO3 Activation

Toward Practical Water Decontaminations via Peroxymonosulfate Nonradical Oxidation: The Role of Cocatalyst MoS2 with Sulfur Vacancies

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Resources

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Spatial Confinement of Co Nanoparticles in N-Doped Carbon Nanorods for Wastewater Purification via CaSO₃ Activation

Toward Practical Water Decontaminations via Peroxymonosulfate Nonradical Oxidation: The Role of Cocatalyst MoS₂ with Sulfur Vacancies