Characterization and application of magnetic biochar for the removal of phosphorus from water

Silva, Teresa Cristina F.; Vergütz, Leonardus; Pacheco, Anderson Almeida; Melo, Larissa F.; Renato, Natália dos Santos; Melo, Leônidas Carrijo Azevedo

doi:10.1590/0001-3765202020190440

Cited by 7 publications

(4 citation statements)

References 46 publications

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“…In addition, chrysanthemum biochar prepared from this work had higher or comparable surface area that other biochars reported in literature, for example medium density fibreboard powder residue (2.3 m 2 g −1 ), 37 banana (4.7 m 2 g −1 ), 61 cassava (13.2 m 2 g −1 ), 61 swine manure (3.4–63 m 2 g −1 ), 62 rice straw (63–76 m 2 g −1 ), 22 industrial kraft lignin (111 m 2 g −1 ), 63 and spent mushroom (16–290 m 2 g −1 ). 64 However, differences in textual properties of resulting biochars may also be due to the preparation conditions, such as pyrolysis temperature, pyrolysis time or the additional steps of using activation gas like steam.…”

Section: Resultssupporting

confidence: 67%

“… 30 The impregnation–pyrolysis method has become a popular process due to its simplicity, easy of control, and stable combination of magnetic particles and biochar. 31 Magnetic biochars have been used to remove heavy metals (Cr( vi ), 32 As( v ), 33 Cd( ii ), 34 Pb( ii ) 34 ), dyes (methylene blue, 35 methyl orange 36 ), nutrient (phosphorus 37 ), organic compounds (phenol, 38 pentachlorophenol 39 ) and other contaminants (nitrate, 40 fluoride 40 ), whereas there is a limit research has focussed on their use as adsorbents for IBP removal. 41 …”

Section: Introductionmentioning

confidence: 99%

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Adsorption of the non-steroidal anti-inflammatory drug (ibuprofen) onto biochar and magnetic biochar prepared from chrysanthemum waste of the beverage industry

Ngernyen,

Petsri,

Sribanthao

et al. 2023

RSC Adv.

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Section: Resultssupporting

confidence: 67%

Section: Introductionmentioning

confidence: 99%

Adsorption of the non-steroidal anti-inflammatory drug (ibuprofen) onto biochar and magnetic biochar prepared from chrysanthemum waste of the beverage industry

Ngernyen,

Petsri,

Sribanthao

et al. 2023

RSC Adv.

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show abstract

“…was performed by monochromatic X-ray radiations of wavelength 1.542 Å, scanning in the range of 10 °-60 °(2θ) and scanning at a speed of 2 °per min for both samples. The surface morphology and macropore shape of biochar and Fe-modified biochar were studied using a JSM 5910 lv thermionic scanning electron microscope (JEOL SEM, Japan) (Silva et al, 2020).…”

Section: Yield%mentioning

confidence: 99%

Green technology: synthesis of iron-modified biochar derived from pine cones to remove azithromycin and ciprofloxacin from water

Aziz,

Anbreen,

Iftikhar

et al. 2024

Front. Environ. Sci.

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The rise of antibiotic pollutants in water threatens ecosystems and human health. Iron-modified biochar (BC) exhibits adsorption properties and offers a promising approach for effective environmental remediation. The current study explored the potential of iron-loaded biochar synthesized from pine cones for antibiotic removal from water. In this study, pine cones, a sustainable and renewable source, were used to produce iron-modified biochar and employed to remove azithromycin, ciprofloxacin, and their mixture from aqueous solutions. Biochar was synthesized through pyrolysis and modified by the addition of iron salts. The analysis of iron-modified biochar by Fourier-transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), and scanning electron microscopy (SEM) suggested a crystalline structure rich in minerals and functional groups (O–H, C=O, and C≡C) and loaded with iron, having plate-like roughness and distorted morphology along with sharp edges and corners. Antibiotic removal was evaluated by changing physical parameters, including biochar dose, pH, and temperature. The maximum removal percentages of azithromycin, ciprofloxacin, and their mixture were obtained as 87.8%, 91.3%, and 84%, respectively, at low pH, a low Fe-modified biochar dose, and higher temperature. Application of kinetic models suggested that the adsorption of antibiotics on iron-modified biochar is more inclined toward pseudo-second-order (R2 > 0.98) kinetics, indicating a chemisorption nature of the adsorption process. The findings highlight the potential of iron-modified biochar for removing antibiotics from aqueous solutions.

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“…Moreover, the anion removal benefit of magnetic biochar helps to adsorb compounds dissolved in aqueous solutions such as nitrate, fluoride, and phosphate (Zhang et al 2012). These magnetic biochars can be used in the soil to provide plant requirements as a slow-release fertiliser (Yao et al 2013;silva et al 2020).…”

Section: Biochar-based Nanocompositesmentioning

confidence: 99%

Biochar modification and application to improve soil fertility and crop productivity

Ghassemi‐Golezani

Rahimzadeh

2022

Agriculture (Pol'nohospodárstvo)

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Biochar as an eco-friendly and low-cost product has the potential for modification to improve its functionality. The application of modified biochar is a new approach that can improve soil properties, quality, and productivity of plants, thereby helping sustainable agriculture. The focus of the recent studies has dealt with methods for improving the function of biochar. Biochar can be modified to enhance its physicochemical properties (such as bulk density, cation exchange capacity, specific surface area, and porosity) and nutritional value. This review provides crucial and summarizing information about the classification of biochar modification techniques for agricultural application and a comparison of pristine and modified biochar function on soil fertility and plant production. There are several approaches for modification of biochar, which can be divided into four main categories: chemical, physical, enriched with minerals, and nanocomposites. The modified biochar could be more appropriate for poor-nutrient soils and has a high adsorption capacity and potential for different pollutants immobilization. Further research is needed to determine the best methods of biochar modification with short-term and long-term effects on soil fertility and plant growth under different environmental conditions.

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Characterization and application of magnetic biochar for the removal of phosphorus from water

Cited by 7 publications

References 46 publications

Adsorption of the non-steroidal anti-inflammatory drug (ibuprofen) onto biochar and magnetic biochar prepared from chrysanthemum waste of the beverage industry

Adsorption of the non-steroidal anti-inflammatory drug (ibuprofen) onto biochar and magnetic biochar prepared from chrysanthemum waste of the beverage industry

Green technology: synthesis of iron-modified biochar derived from pine cones to remove azithromycin and ciprofloxacin from water

Biochar modification and application to improve soil fertility and crop productivity

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