Synthesis of biochar from chili seeds and its application to remove ibuprofen from water. Equilibrium and 3D modeling

Ocampo-Pérez, Raúl; Padilla-Ortega, Érika; Castillo, Nahúm Andrés Medellín; Coronado-Oyarvide, P.; Aguilar-Madera, Carlos G.; Segovia-Sandoval, Sonia Judith; Flores-Ramírez, Rogelio; Parra-Marfíl, Adriana

doi:10.1016/j.scitotenv.2018.11.283

Cited by 65 publications

(6 citation statements)

References 32 publications

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“…Over the adsorption time, the adsorption sites on the surface of the biochar are gradually occupied by chromium ions, resulting in the occurrence of adsorption equilibrium. The curve in Figure 6a shows that the six biochars show a significant increase in the adsorption rate at the beginning of the adsorption and then slowly reach adsorption equilibrium, which is the phenomenon of "first fast and then slow" [15,31]. The adsorption mechanism was analyzed using pseudo-first-order equations, pseudo-second-order equations and the intraparticle diffusion model.…”

Section: Adsorption Kinetics Studymentioning

confidence: 99%

“…Biochar is produced via oxygen-limited pyrolysis from different biomass materials [14] that present carbon contents (achieved by controlling the pyrolysis temperature) as high as 51.60-85.02% [15] and are rich in acid-base groups, such as carboxyl (-COOH) and phenolic hydroxyl (-OH) groups [16]. Biochar is a new type of adsorbent with excellent adsorption properties for nutrient elements (ammonia nitrogen, phosphorus), organic dyes (Congo red, malachite green, etc.…”

Section: Introductionmentioning

confidence: 99%

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High-Efficiency Removal of Cr(VI) from Wastewater by Mg-Loaded Biochars: Adsorption Process and Removal Mechanism

Deng

Jiang

et al. 2020

Materials

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Biochars were produced with magnesium chloride as an additive for the sorption of hexavalent chromium dissolved in water using five types of straw (from taro, corn, cassava, Chinese fir, and banana) and one type of shell (Camellia oleifera) as the raw materials. The removal of hexavalent chromium by the six biochars mainly occurred within 60 min and then gradually stabilized. The kinetics of the adsorption process were second order, the Langmuir model was followed, and the adsorption of Cr(VI) by the six biochars was characterized by Langmuir monolayer chemisorption on a heterogeneous surface. Banana straw biochar (BSB) had the best performance, which perhaps benefitted from its special structure and best adsorption effect on Cr(VI), and the theoretical adsorption capacity was calculated as 125.00 mg/g. For the mechanism analysis, Mg-loaded biochars were characterized before and after adsorption by Fourier transform infrared spectroscopy (FTIR), X-ray diffractometry (XRD), and scanning electron microscopy/energy dispersive spectroscopy (SEM-EDS). The adsorption mechanism differed from the adsorption process of conventional magnetic biochar, and biochar interactions with Cr(VI) were controlled mainly by electrostatic attraction, complexation, and functional group bonding. In summary, the six Mg-loaded biochars exhibit great potential advantages in removing Cr(VI) from wastewater and have promising potential for practical use, especially BSB, which shows super-high adsorption performance.

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Section: Adsorption Kinetics Studymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

High-Efficiency Removal of Cr(VI) from Wastewater by Mg-Loaded Biochars: Adsorption Process and Removal Mechanism

Deng

Jiang

et al. 2020

Materials

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“…Recently, Ocampo‐Perez et al . () and Jung et al . () concluded that the removal of pharmaceuticals from wastewaters largely depend on hydrogen bonding, electrostatic interactions and surface complexation between charged groups on the biochar surface and moieties of the substance (Jung et al .…”

Section: Introductionmentioning

confidence: 88%

“…; Ocampo‐Perez et al . ). Similar conclusions were drawn by other researchers, who used biochars from different feedstocks to treat a range of organic pollutants (Wang et al .…”

Section: Introductionmentioning

confidence: 97%

Preliminary assessment on the application of biochar and spectral‐induced polarization for wastewater treatment

Kirmizakis

Kalderis

Ntarlagiannis

et al. 2019

Near Surface Geophysics

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In this work, we explore the use of biochar as a remediation agent, and the sensitivity of the spectral‐induced polarization method as a remediation monitoring aid. Biochar amended columns were fully saturated with industrial wastewater (olive oil mill waste) with very high concentration of phenols (∼2485 mg/L) and other substances. The biochar‐amended columns achieved very high removal rates of phenols compared to the control (sand only). Geophysical monitoring over the duration of the experiment (10 days) showed changes in the spectral‐induced polarization signal (imaginary conductivity) consistent with phenol removal as confirmed by geochemical monitoring. This experiment confirmed the utility of biochar as a remediation agent. Furthermore, spectral‐induced polarization can serve as long‐term, high resolution, monitoring aid in organic contaminant degradation processes.

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“…Its adsorption mechanism was ascribed to π-π interaction, pore filling and hydrogen bonding. Ocampo-Perez et al (Ocampo-Perez et al, 2019) synthesized biochar by using pepper seeds and showed good IBP adsorption capacity. The results showed that the increase in pyrolysis temperature can promote the increase in disordered graphitic carbon content (51.6%-85.02%) and the decrease in specific surface area (0.52-0.18 m 2 /g).…”

Section: Adsorption Behavior Of Ibp On Biochar Surfacementioning

confidence: 99%

Research progress on biochar-based material adsorption and removal of ibuprofen

Zhan,

Ye,

Hou

2023

Front. Environ. Sci.

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Ibuprofen, commonly used for pain relief, inflammation, and to reduce high fever, etc., is a widely available over-the-counter drug. In recent years, due to the excessive use of ibuprofen, its presence in the aquatic environments has shown a significant increasing trend, raising concerns about potential risks to environmental safety, which attracted people’s close attention. Notably, biochar, known as an environmentally friendly functional material, had been widely studied and applied for the removal of ibuprofen in water environments. According to current reports, the adsorption capacity value of biochar for IBP is between 9.69–309 mg/g, and the adsorption mechanism mainly includes π-π stacking, hydrogen bonding, pore filling, etc. In response to this research hotspot, this study reviewed the most recent research progress on the adsorption of ibuprofen using biochar-based materials, including the modified preparation process of biochar and the adsorption mechanism of IBP on various modified biochar surfaces. Additionally, potential challenges and future development directions for the practical applications of biochar were discussed and proposed.

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Synthesis of biochar from chili seeds and its application to remove ibuprofen from water. Equilibrium and 3D modeling

Cited by 65 publications

References 32 publications

High-Efficiency Removal of Cr(VI) from Wastewater by Mg-Loaded Biochars: Adsorption Process and Removal Mechanism

High-Efficiency Removal of Cr(VI) from Wastewater by Mg-Loaded Biochars: Adsorption Process and Removal Mechanism

Preliminary assessment on the application of biochar and spectral‐induced polarization for wastewater treatment

Research progress on biochar-based material adsorption and removal of ibuprofen

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