Manganese ferrite modified biochar from vinasse for enhanced adsorption of levofloxacin: Effects and mechanisms

Xu, Zhangyi; Xiang, Yujia; Zhou, Hao; Yang, Jian; He, Yangzhou; Zhu, Zhen; Zhou, Yaoyu

doi:10.1016/j.envpol.2020.115968

Cited by 52 publications

(12 citation statements)

References 32 publications

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“…At pH 2.3, TC molecules exist in cationic form, and the KBC surface also has a positive charge. As a result, the high TC adsorption capacity of KBC at this pH despite the electrostatic repulsion suggests other interactions between KBC and TC molecules, namely, strong hydrogen bonding and π–π EDA interactions . And the slight decrease in the TC adsorption capacity of KBC at pH > 7 can be attributed to both hydrogen bonding and π–π EDA interaction forces being weakened under alkaline conditions, in addition to the presence of strong electrostatic repulsion between the negatively charged TC and BC surfaces.…”

Section: Resultsmentioning

confidence: 88%

“…As a result, the high TC adsorption capacity of KBC at this pH despite the electrostatic repulsion suggests other interactions between KBC and TC molecules, namely, strong hydrogen bonding and π−π EDA interactions. 40 And the slight decrease in the TC adsorption capacity of KBC at pH > 7 can be attributed to both hydrogen bonding and π−π EDA interaction forces being weakened under alkaline conditions, in addition to the presence of strong electrostatic repulsion between the negatively charged TC and BC surfaces. In addition, BC displays similar behavior, having the highest adsorption at pH 2−3, although, overall, the adsorption capacity of BC is much lower when compared with that of KBC.…”

Section: Effect Of Phmentioning

confidence: 98%

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Improved Adsorption of Tetracycline in Water by a Modified Caulis spatholobi Residue Biochar

et al. 2022

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A potassium modified biochar (KBC) using Caulis spatholobi residue as the raw material was prepared by adopting a two-step method of pyrolysis followed by high-temperature potassium hydroxide activation, and its properties were characterized. Activation using potassium hydroxide under high temperature induced the loss of CaCO 3 and partial C on biochar, which created a high specific surface area (1336.31 m 2 /g) together with a developed pore structure. pH displayed a slight influence on tetracycline adsorption, which signified the slight influence of the existence of tetracycline and the charge potential of biochar. Besides, pore filling, hydrogen bonding and π–π EDA stacking interactions possibly resulted in tetracycline adsorption on biochar. Tetracycline adsorption was fast in the original period, followed by a slower rate of adsorption until equilibrium was reached. Adsorption kinetics of tetracycline could be described using secondary and Elovich kinetic models. Adsorption isotherms for tetracycline were well fitted to the Langmuir isotherm model, and the maximum adsorption capacity of KBC was 830.78 mg/g at 318 K. According to a study of the thermodynamics, the adsorption of tetracycline on KBC was an endothermic reaction process. Corresponding results in the present study demonstrated that high-temperature potassium hydroxide activation enabled biochar to effectively eliminate tetracycline from water and wastewater.

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Section: Resultsmentioning

confidence: 88%

Section: Effect Of Phmentioning

confidence: 98%

Improved Adsorption of Tetracycline in Water by a Modified Caulis spatholobi Residue Biochar

et al. 2022

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“…19,49 The increasing content of –OH in NaCBC 300 may form a hydrogen bond with the aromatic ring of MB, 50 and the changes in aromatic CO and CC bonds indicated that there may be a π–π bond between the aromatic ring structures of NaCBC 300 and MB. 51…”

Section: Resultsmentioning

confidence: 99%

“…19,49 The increasing content of -OH in NaCBC 300 may form a hydrogen bond with the aromatic ring of MB, 50 and the changes in aromatic C]O and C]C bonds indicated that there may be a p-p bond between the aromatic ring structures of NaCBC 300 and MB. 51 The strong C 1s peak in both CBC 300 and NaCBC 300 spectra manifested that carbon element was dominant in the biochar samples (Fig. 1e).…”

Section: Characterization Of Biocharsmentioning

confidence: 94%

Experimental and DFT insights into the adsorption mechanism of methylene blue by alkali-modified corn straw biochar

Yu,

Zhang,

Wang

et al. 2024

RSC Adv.

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“…Numerous studies, particularly at the laboratory scale, have examined the adsorption pathway using synthetic pollutant solutions (Xu et al 2021 ; Yao et al 2021 ; Yu et al 2019a ; El-Shafie et al 2021 ; Hassan et al 2020 ). However, biochar can be considered as a viable solution if employed at a large industrial scale (continuous systems) for water treatment.…”

Section: Environmental Remediationmentioning

confidence: 99%

Biochar for agronomy, animal farming, anaerobic digestion, composting, water treatment, soil remediation, construction, energy storage, and carbon sequestration: a review

et al. 2022

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In the context of climate change and the circular economy, biochar has recently found many applications in various sectors as a versatile and recycled material. Here, we review application of biochar-based for carbon sink, covering agronomy, animal farming, anaerobic digestion, composting, environmental remediation, construction, and energy storage. The ultimate storage reservoirs for biochar are soils, civil infrastructure, and landfills. Biochar-based fertilisers, which combine traditional fertilisers with biochar as a nutrient carrier, are promising in agronomy. The use of biochar as a feed additive for animals shows benefits in terms of animal growth, gut microbiota, reduced enteric methane production, egg yield, and endo-toxicant mitigation. Biochar enhances anaerobic digestion operations, primarily for biogas generation and upgrading, performance and sustainability, and the mitigation of inhibitory impurities. In composts, biochar controls the release of greenhouse gases and enhances microbial activity. Co-composted biochar improves soil properties and enhances crop productivity. Pristine and engineered biochar can also be employed for water and soil remediation to remove pollutants. In construction, biochar can be added to cement or asphalt, thus conferring structural and functional advantages. Incorporating biochar in biocomposites improves insulation, electromagnetic radiation protection and moisture control. Finally, synthesising biochar-based materials for energy storage applications requires additional functionalisation.

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Manganese ferrite modified biochar from vinasse for enhanced adsorption of levofloxacin: Effects and mechanisms

Cited by 52 publications

References 32 publications

Improved Adsorption of Tetracycline in Water by a Modified Caulis spatholobi Residue Biochar

Improved Adsorption of Tetracycline in Water by a Modified Caulis spatholobi Residue Biochar

Experimental and DFT insights into the adsorption mechanism of methylene blue by alkali-modified corn straw biochar

Biochar for agronomy, animal farming, anaerobic digestion, composting, water treatment, soil remediation, construction, energy storage, and carbon sequestration: a review

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