Pyrolyzed biomass-derived nanoparticles: a review of surface chemistry, contaminant mobility, and future research avenues to fill the gaps

Swaren, Logan; Safari, Salman; Konhauser, Kurt O.; Alessi, Daniel S.

doi:10.1007/s42773-022-00152-3

Cited by 20 publications

(4 citation statements)

References 119 publications

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“…Biochar-derived DOM encompasses a spectrum of diverse organic molecules varying in size and structure, which can pass through a 0.45 μm filter and release into the water body. , The dynamic DOM-released concentration of different biochar samples is shown in Figure a, which showed that the DOM concentration varied in the first 0–120 min and gradually stabilized after 120 min. The DOM concentration of BC, BC-Fe0.02, BC-Fe0.05, and BC-Fe0.1 was 10.76, 4.43, 3.73, and 3.19 mg/L, respectively, which showed that DOM concentration was reduced with the increasing Fe loading.…”

Section: Resultsmentioning

confidence: 99%

Releasing and Assessing the Toxicity of Polycyclic Aromatic Hydrocarbons from Biochar Loaded with Iron

He,

Dai,

et al. 2023

ACS Omega

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Iron (Fe)-loaded biochar has garnered attention for its potential applications in recent years. However, the pyrolysis process of Fe-loaded biochar generates polycyclic aromatic hydrocarbons (PAHs), which can have adverse effects on both human health and the environment. This study explored the correlation between Fe loading and PAH production in Fe-loaded biochar. The results indicate that increasing Fe loading in biochar reduces the PAH concentration, with the most significant decrease observed in naphthalene (0.02–0.08 mg/kg). This reduction can be attributed to the decrease in precursor compounds (e.g., C 2 H 2 ), substitution of the C=O bond by Fe–O, and a decrease in the dissolved organic matter concentration (3.19–10.76 mg/L) with Fe loading. When Fe loading increased from 0 to 10%, the ecological toxicity of biochar increased by 33.48% due to an elevated production of dibenzo[ a , h ]anthracene, which poses a significant risk to human health. Therefore, it is imperative to take into consideration the ecological risk of PAHs prior to the application of Fe-loaded biochar. This study presents a comprehensive risk assessment of Fe-loaded biochar and provides valuable insights into the optimization of its production and safe application.

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Section: Resultsmentioning

confidence: 99%

Releasing and Assessing the Toxicity of Polycyclic Aromatic Hydrocarbons from Biochar Loaded with Iron

He,

Dai,

et al. 2023

ACS Omega

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“…Currently, the global generation of hydrogen exceeds 44.5 million tons [3], and it will be the primary generator of power until 2080 [107]. However, there are numerous methods for producing hydrogen-like substances, and the most common is thermolysis [108], electrolysis [109], biomass [110], photolysis [109], and hydrolysis [111][112][113][114]. Photocatalytic water dissociation is a successful technology that has received a lot of interest due to its broad application for power and sustainability purposes.…”

Section: Photocatalytic Hydrogen Productionmentioning

confidence: 99%

Biobased Kapok Fiber Nano-Structure for Energy and Environment Application: A Critical Review

Zerga

Tahir

2022

Molecules

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The increasing degradation of fossil fuels has motivated the globe to turn to green energy solutions such as biofuel in order to minimize the entire reliance on fossil fuels. Green renewable resources have grown in popularity in recent years as a result of the advancement of environmental technology solutions. Kapok fiber is a sort of cellulosic fiber derived from kapok tree seeds (Ceiba pentandra). Kapok Fiber, as a bio-template, offers the best alternatives to provide clean and renewable energy sources. The unique structure, good conductivity, and excellent physical properties exhibited by kapok fiber nominate it as a highly favored cocatalyst for deriving solar energy processes. This review will explore the role and recent developments of KF in energy production, including hydrogen and CO2 reduction. Moreover, this work summarized the potential of kapok fiber in environmental applications, including adsorption and degradation. The future contribution and concerns are highlighted in order to provide perspective on the future advancement of kapok fiber.

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“…Previous studies have shown that NBC may transport adsorbed nutrients and even pollutants to deeper soil layers or even groundwater through runoff, infiltration, and other routes [ 6 , 17 , 18 ]. This process can expedite the leaching of nutrients and the dispersion of pollutants, consequently exacerbating environmental risks [ 19 , 20 , 21 ]. Therefore, exploring the migration rules and mechanisms of NBC in soil is crucial for fully leveraging its advantages and reducing potential negative impacts.…”

Section: Introductionmentioning

confidence: 99%

Migration Rules and Mechanisms of Nano-Biochar in Soil Columns under Various Transport Conditions

Li,

Yan,

et al. 2024

Nanomaterials

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Compared to traditional biochar (BC), nano-biochar (NBC) boasts superior physicochemical properties, promising extensive applications in agriculture, ecological environments, and beyond. Due to its strong adsorption and migration properties, NBC may carry nutrients or pollutants to deeper soil layers or even groundwater, causing serious environmental risks. Nevertheless, the migration rules and mechanisms of NBC in soil are still unclear. Therefore, this study employed soil column migration experiments to systematically explore the migration rules and mechanisms of NBC under various flow rates, initial soil water contents, soil depths, and soil textures. The results showed that regulated by smaller particle size differences and greater surface charges, NBC exhibited a stronger migration ability compared with traditional BC. As the soil texture transitioned from fine to coarse, the migration capability of NBC significantly improved, driven by both pore structure and interaction forces as described by the DLVO theory. The migration ability of NBC was also greatly boosted as the soil transitioned from saturated to unsaturated conditions, primarily because of preferential flow. When the flow rate increased from 70% KS to 100% KS and 130% KS, the migration ability of NBC also increased accordingly, as changes in injection flow rates altered the velocity distribution of pore water. NBC in 25 cm soil columns was more prone to shallow retention compared with 10 cm soil columns, resulting in weaker overall migration ability. In addition, through fitting of the two-site kinetic model and related parameters, the penetration curves of NBC under various variable conditions were effectively characterized. These findings could offer valuable insights for NBC’s future efficient, rational, and sustainable utilization, facilitating the evaluation and mitigation of its potential environmental risks.

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Pyrolyzed biomass-derived nanoparticles: a review of surface chemistry, contaminant mobility, and future research avenues to fill the gaps

Cited by 20 publications

References 119 publications

Releasing and Assessing the Toxicity of Polycyclic Aromatic Hydrocarbons from Biochar Loaded with Iron

Releasing and Assessing the Toxicity of Polycyclic Aromatic Hydrocarbons from Biochar Loaded with Iron

Biobased Kapok Fiber Nano-Structure for Energy and Environment Application: A Critical Review

Migration Rules and Mechanisms of Nano-Biochar in Soil Columns under Various Transport Conditions

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