Adsorption behavior of tetracycline onto Spirulina sp. (microalgae)-derived biochars produced at different temperatures

Choi, Yong‐Keun; Choi, Taekjib; Gurav, Ranjit; Bhatia, Shashi Kant; Kim, Hwang-Phill; Kim, Hyung Joo; Kan, Eunsung; Yang, Yung‐Hun

doi:10.1016/j.scitotenv.2019.136282

Cited by 195 publications

(76 citation statements)

References 48 publications

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“…Particularly, the loss of C–O stretching (1049 cm –1 ) and CO 3 2– (875 cm –1 ) groups in DEAF-BC after the adsorption of TC indicated that these oxygen-containing functional groups as H-bond acceptors would favorably make hydrogen bonding with TC. 2 , 16 The increase of FTIR peaks in amino group (−NH 2 , 1520 cm –1 ) and C=O stretching groups in TC (1580 cm –1 ) in DEAF-BC also confirmed the TC adsorption onto DEAF-BC ( Figure 3 ).…”

Section: Resultsmentioning

confidence: 58%

“…The DEAF-BC (835.7 mg/g) from this study possessed higher Q m for TC than those of various pristine BCs (8.1–407.9 mg/g), functionalized BCs (98.9–102 mg/g), and activated BCs (87.8–552.0 mg/g). 2 , 17 , 18 , 27 , 35 , 36 In addition, the DEAF-BC had the comparable Q m with the commercial activated carbon (816.7 mg/g). 37 …”

Section: Resultsmentioning

confidence: 88%

“…Similar to DEAF-BC, the microalgae, rice straw, and swine manure-derived biochars also revealed the effective TC adsorption via van der Waals, hydrogen bonding, and π–π interactions. 2 , 9 , 15 , 16 …”

Section: Resultsmentioning

confidence: 99%

“…On the other hand, biochars (BCs), solid carbonaceous materials (CMs) after pyrolysis from varieties of biomass and solid wastes, showed high potential for TC adsorption in the aqueous phase (e.g., wastewater and water). 2 , 4 , 9 , 13 , 14 …”

Section: Introductionmentioning

confidence: 99%

“…Recently, many BCs derived from wood, sawdust, grass, sewage sludge, microalgae, and swine manure have been studied to eliminate TC in the aqueous phase. 2 , 4 , 9 , 15 − 17 The previous studies indicated that the TC adsorption onto raw (un-modified) and activated biochars would be controlled by mainly hydrophobic and π–π interactions. 2 , 4 , 13 , 18 Since these interactions rely on the surface area of BC, the raw BCs from various feedstocks with limited surface areas provided low TC adsorption ( Table 1 ).…”

Section: Introductionmentioning

confidence: 99%

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Facile and Economical Functionalized Hay Biochar with Dairy Effluent for Adsorption of Tetracycline

2020

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The present study reports a novel hay biochar functionalized with dairy effluent for enhanced tetracycline (TC) adsorption in the aqueous phase for the first time. The enrichment of hay (i.e., alfalfa) with dairy effluent led to significant accumulation of cationic metals during biochar production. The dairy effluent-functionalized alfalfa biochar (DEAF-BC) possessed strong crystallization (i.e., CaCO 3 ), functional groups (i.e., CO 3 2– , C–O stretching), and high surface area (334 m 2 /g) related to TC adsorption. Therefore, DEAF-BC showed higher TC adsorption capacity (835.7 mg/g) than that of the alfalfa biochar (94.5 mg/g). The adsorption isotherm and kinetic results for the DEAF-BC were correlated with the Freundlich, pseudo-second-order, and intraparticle diffusion models for TC. For the TC adsorption onto DEAF-BC, the thermodynamic analysis implied a spontaneous and endothermic process. Possible mechanisms would include metal complexation, hydrogen bonding, van der Waals forces, and π–π interaction.

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Section: Resultsmentioning

confidence: 58%

Section: Resultsmentioning

confidence: 88%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Facile and Economical Functionalized Hay Biochar with Dairy Effluent for Adsorption of Tetracycline

2020

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The potential for synthesized invasive plant biochar with hydroxyapatite to mitigate allelopathy of Solidagocanadensis

Huang

Yuan

et al. 2023

Ecological Applications

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Few studies tried to explore the mitigation effect and underlying mechanisms of biochar and their complex for negative allelopathy from invasive plants, which may provide a new way in the invasive plant management. Herein, an invasive plant (Solidago canadensis)‐derived biochar (IBC) and its composite with hydroxyapatite (HAP/IBC) were synthesized by high temperature pyrolysis, and characterized by scanning electron microscopy, energy dispersion spectrometer, X‐ray diffraction, Fourier transform infrared spectroscopy, and X‐ray photoelectron spectroscopy. Then, both the batch adsorption and pot experiments were conducted to compare the removal effects of kaempferol‐3‐O‐β‐D‐glucoside (C21H20O11, kaempf), an allelochemical from S. canadensis, on IBC and HAP/IBC, respectively. HAP/IBC showed a stronger affinity for kaempf than IBC due to its higher specific surface area, more functional groups (P‐O, P‐O‐P, PO43−), stronger crystallization [Ca3(PO4)2]. The maximum kaempf adsorption capacity on HAP/IBC was six times higher than on IBC (10.482 mg/g > 1.709 mg/g) via π–π interactions, functional groups, and metal complexation. The kaempf adsorption process could be fitted best by both pseudo‐second‐order kinetic and Langmuir isotherm models. Furthermore, HAP/IBC addition into soils could enhance and even recover the germination rate and/or seedling growth of tomato inhibited by negative allelopathy from the invasive S. canadensis. These results indicate that the composite of HAP/IBC could more effectively mitigate the allelopathy from S. canadensis than IBC, which may be a potential efficient approach to control the invasive plant and improve invaded soils.

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Remediation of emerging pollutants using biochar derived from aquatic biomass for sustainable waste and pollution management: a review

Verma,

Singh,

Dhanorkar

2023

J of Chemical Tech & Biotech

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The Coronavirus disease pandemic over the last three years has shifted the attention of the entire world population from a self‐centred monitory growth to a holistic growth, with health and environment as the central focus. Pharmaceuticals and microplastics have emerged as most prominent environmental contaminants in recent times. Although adsorption is recognized globally as a low cost and effective remediation process, the removal of a variety of pollutants from environmental niche still remains a challenge. This review highlights the use of valorised waste aquatic biomass as an adsorbent for the withdrawal of various emerging pollutants (pharmaceuticals, microplastics and heavy metals). The unwanted invasive aquatic plants can be used as a valuable resource and converted into an ideal precursor and value product for the development of carbon‐based adsorbents that have numerous industrial and environmental applications. There lacks a comprehensive review and analysis on the use of biochar, derived from aquatic biomass, for the extraction of emerging pollutants, especially for microplastics. This distinctive, timely work will aid in the expansion of research on the production of biochar from a waste resource, strengthen their use as adsorbent and help combat the increasing pollution due to various emerging pollutants, including pharmaceuticals and microplastics.This article is protected by copyright. All rights reserved.

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Adsorption behavior of tetracycline onto Spirulina sp. (microalgae)-derived biochars produced at different temperatures

Cited by 195 publications

References 48 publications

Facile and Economical Functionalized Hay Biochar with Dairy Effluent for Adsorption of Tetracycline

Facile and Economical Functionalized Hay Biochar with Dairy Effluent for Adsorption of Tetracycline

The potential for synthesized invasive plant biochar with hydroxyapatite to mitigate allelopathy of Solidagocanadensis

Remediation of emerging pollutants using biochar derived from aquatic biomass for sustainable waste and pollution management: a review

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