Carboxyl-functionalized biochar derived from walnut shells with enhanced aqueous adsorption of sulfonamide antibiotics

Geng, Xinxiang; Lv, Siying; Yang, Jing; Shen, Chen; Zhao, Zehua

doi:10.1016/j.jenvman.2020.111749

Cited by 104 publications

(19 citation statements)

References 43 publications

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“…Wang et al used citrus peel-derived carbon (C/SiO 2 @Fe 3 O 4 ) as a highly efficient adsorbent of carbamate pesticides [21]. There are different biomass precursors, such as walnut shell [22] peanut shell [23], cotton straw [24], and bamboo [25]. They can exhibit the merits of non-toxicity, renewability, and good adsorption efficiency after carbonization [26].…”

Section: Introductionmentioning

confidence: 99%

Biomass‐derived porous material synthesized by one‐step calcination method for the magnetic solid‐phase extraction of polychlorinated biphenyls in water

Gao

Zhao

et al. 2022

J of Separation Science

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Recent findings unfold that biomass materials with the micro/mesoporous structure were often treated as adsorbents for organic substances. In this work, a one‐step calcination method was adopted in the preparation of magnetic porous green bean biomass material. It has the properties of magnetism and porosity after the addition of Co(NO3)2 and high‐temperature calcination. A variety of characterizations have been operated, including energy dispersive X‐ray detector, vibrating sample magnetometer, Fourier transform infrared spectroscopy, Brunauer‐Emmett‐Teller analysis, and so on. It has a specific surface area of 168.1611 m2/g and a pore volume of 0.1764 cm3/g. The material was used in magnetic solid‐phase extraction of three polychlorinated biphenyls: 2‐chlorobiphenyl, 4‐chlorobiphenyl, and 2,2,5‐trichlorobiphenyl. Several factors were investigated, such as material amount, eluents, adsorption time, solution pH, salinity, and reusability. Under optimized conditions, good recoveries (90.24–93.34%) were achieved with the relative standard deviation in a range from 2.30 to 4.83%. Three real water samples (tap, river, and lake water) were tested to verify the accuracy of the method. This method can be successfully used in the analysis of some polychlorinated biphenyls congeners in water.

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Section: Introductionmentioning

confidence: 99%

Biomass‐derived porous material synthesized by one‐step calcination method for the magnetic solid‐phase extraction of polychlorinated biphenyls in water

Gao

Zhao

et al. 2022

J of Separation Science

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Section: Resultsmentioning

confidence: 99%

“…All the results indicate that the composite possessed oxygen-containing and carbon-containing functional groups on the surface. These groups can adsorb target molecules by hydrophobic interaction and hydrogen bonding [25]. The band at approximately 3405 cm −1 represented the O-H stretching vibration [21] and is shown in Figure 4A-C.…”

Section: Ftir Analysismentioning

confidence: 99%

Synthesis of CoFe2O4/Peanut Shell Powder Composites and the Associated Magnetic Solid Phase Extraction of Phenoxy Carboxylic Acid Herbicides in Water

Huang

2022

IJERPH

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The magnetic biochar material CoFe2O4/PCPS (peanut shell powder) was prepared based on the hybrid calcination method. The properties of prepared composites and the extraction effect of magnetic solid phase extraction on phenoxy carboxylic acid herbicides were assessed. The morphology, crystal structure, specific surface area, and pore size distribution of the material were analysed using a transmission electron microscope (TEM), infrared Fourier transform infrared spectroscopy (FTIR), X-ray powder diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and N2 absorption surface analysis (BET). The results of the magnetic solid phase extraction of a variety of phenoxy carboxylic acid herbicides in water using CoFe2O4/PCPS composites showed that, when the mass ratio of CoFe2O4 and PCPS was 1:1, 40 mg of the composite was used, and the adsorption time was 10 min at pH 8.50. Methanol was used as the eluent, and the recovery rates of the three phenoxy carboxylic acid herbicides were maintained at 81.95–99.07%. Furthermore, the actual water sample analysis results showed that the established method had good accuracy, stability, and reliability.

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“…Hydrophobic mechanism is a type of interaction between nonpolar molecules together. They usually have a long chain of aliphatic carbons or aromatic rings that do not interact with water molecules (Geng et al 2021 ). Therefore, taking advantage of high hydrophobicity of chloramphenicol to remove it from water by hydrophobic adsorbents such as activated carbons and biochars by adsorption methods should not be ignored (Zhang et al 2017 ).…”

Section: Removal Of Chloramphenicolmentioning

confidence: 99%

Occurrence, toxicity and adsorptive removal of the chloramphenicol antibiotic in water: a review

Nguyen

et al. 2022

Environ Chem Lett

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Chloramphenicol is a broad-spectrum bacterial antibiotic used against conjunctivitis, meningitis, plague, cholera, and typhoid fever. As a consequence, chloramphenicol ends up polluting the aquatic environment, wastewater treatment plants, and hospital wastewaters, thus disrupting ecosystems and inducing microbial resistance. Here, we review the occurrence, toxicity, and removal of chloramphenicol with emphasis on adsorption techniques. We present the adsorption performance of adsorbents such as biochar, activated carbon, porous carbon, metal–organic framework, composites, zeolites, minerals, molecularly imprinted polymers, and multi-walled carbon nanotubes. The effect of dose, pH, temperature, initial concentration, and contact time is discussed. Adsorption is controlled by π–π interactions, donor–acceptor interactions, hydrogen bonding, and electrostatic interactions. We also discuss isotherms, kinetics, thermodynamic data, selection of eluents, desorption efficiency, and regeneration of adsorbents. Porous carbon-based adsorbents exhibit excellent adsorption capacities of 500–1240 mg g −1 . Most adsorbents can be reused over at least four cycles.

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Carboxyl-functionalized biochar derived from walnut shells with enhanced aqueous adsorption of sulfonamide antibiotics

Cited by 104 publications

References 43 publications

Biomass‐derived porous material synthesized by one‐step calcination method for the magnetic solid‐phase extraction of polychlorinated biphenyls in water

Biomass‐derived porous material synthesized by one‐step calcination method for the magnetic solid‐phase extraction of polychlorinated biphenyls in water

Synthesis of CoFe2O4/Peanut Shell Powder Composites and the Associated Magnetic Solid Phase Extraction of Phenoxy Carboxylic Acid Herbicides in Water

Occurrence, toxicity and adsorptive removal of the chloramphenicol antibiotic in water: a review

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