Preparation and modification of bagasse biochar unveiling ofloxacin wastewater adsorption

Ye, Maoyou; Fang, Y.; Xiang, Hongjing; Liu, Hui; Yan, Hao; Wang, Bingmin; Lin, Xinle; Liang, Jialin; Qian, Wei

doi:10.1080/09593330.2022.2152222

Cited by 3 publications

(11 citation statements)

References 31 publications

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“…Geng et al also reported that the maximum adsorption capacities for sulfadiazine, sulfamethazine, and sulfachloropyridazine of the modified biochar using HNO 3 increased by 10- to 30-fold compared with the pristine biochar (as shown in Table S2), which was due to the higher carboxyl functional groups and well-developed surface structures and cavities in the modified biochar surface. Likewise, Ye et al found that the modified biochar using HNO 3 exhibited superior adsorption performance for ofloxacin than the pristine biochar (2.2-fold higher). It could be due to the increase of S BET , pore structure, and the content and type of functional groups via HNO 3 modification .…”

Section: Factors Influencing Antibiotics Removal By Biocharmentioning

confidence: 99%

“…It could be due to the increase of S BET , pore structure, and the content and type of functional groups via HNO 3 modification. 125 Zeng et al 126 found that during H 3 PO 4 modification phosphorus-containing functional groups (e.g., P = O and P = OOH) were successfully introduced into the surface of biochar, which could affect the charge distribution of the biochar and hydrogen bonding formation, resulting in higher adsorption capacity. Additionally, KOH treatment led to an elevation in O-containing functional groups while reducing the aromaticity and hydrophobicity of biochar, thereby promoting the adsorption of antibiotics.…”

Section: Pyrolysismentioning

confidence: 99%

“…Likewise, Ye et al found that the modified biochar using HNO 3 exhibited superior adsorption performance for ofloxacin than the pristine biochar (2.2-fold higher). It could be due to the increase of S BET , pore structure, and the content and type of functional groups via HNO 3 modification . Zeng et al found that during H 3 PO 4 modification phosphorus-containing functional groups (e.g., P = O and P = OOH) were successfully introduced into the surface of biochar, which could affect the charge distribution of the biochar and hydrogen bonding formation, resulting in higher adsorption capacity.…”

Section: Factors Influencing Antibiotics Removal By Biocharmentioning

confidence: 99%

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Biochar-Based Strategies for Antibiotics Removal: Mechanisms, Factors, and Application

Jia,

Ou,

Khanal

et al. 2024

ACS EST Eng.

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The increasing use of antibiotics induces the spread of antibiotic-resistant genes (ARGs) in the environment, which seriously threatens the natural ecosystem and human health. Reducing antibiotics in the environment is of the utmost importance. Biochar, as a cost-effective, environmentally friendly, and carbon-rich porous material with circular economy prospects, has shown great potential in antibiotic remediation in the environment. The adsorption mechanisms (e.g., electrostatic interaction, hydrogen bonding interaction, hydrophobic interaction, π−π electron donor−acceptor (EDA) interaction, and pore diffusion) and the biotic roles (e.g., biochar as a microbial shelter, carrier, and electron mediator) synergistically promote antibiotic removal from the aqueous phase. This review critically discusses various removal mechanisms based on classes of antibiotics, the efficacy of biochar in antibiotics removal, and the influence of crucial parameters on the removal of antibiotics. Furthermore, the review provides a critical discussion on engineering the application of biochar. Finally, the review highlights the prospects and challenges of biochar application in treating antibiotic-contaminated liquid streams.

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Section: Factors Influencing Antibiotics Removal By Biocharmentioning

confidence: 99%

Section: Pyrolysismentioning

confidence: 99%

Section: Factors Influencing Antibiotics Removal By Biocharmentioning

confidence: 99%

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Biochar-Based Strategies for Antibiotics Removal: Mechanisms, Factors, and Application

Jia,

Ou,

Khanal

et al. 2024

ACS EST Eng.

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“…The following supporting information can be downloaded at: https://www. mdpi.com/article/10.3390/su16072629/s1, Table S1: Overview of literature data on sorption of OFL by different biochars [22,24,25,48,[64][65][66][67][68][69][70][71][72][73][74][75][76][77].…”

Section: Supplementary Materialsmentioning

confidence: 99%

Insights into the Roles of Surface Functional Groups and Micropores in the Sorption of Ofloxacin on Banana Pseudo-Stem Biochars

Wang,

Yang,

Wang

et al. 2024

Sustainability

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In the present study, banana pseudo-stem (BS) was pyrolyzed under anaerobic conditions without any physical or chemical modification. Their properties, as well as their sorption affinity to ofloxacin (OFL), were studied. As a result, oxalates and KCl formed at a relatively low temperature of 300 °C, while bicarbonates generally formed at a pyrolysis temperature above 400 °C. Surface functional groups of BS biochars facilitated OFL sorption mainly via specific interactions including electronic attraction (EA), π–π electron donor–acceptor (π–π EDA) interaction, the ordinary hydrogen bond (OHB), and the negative charge-assisted hydrogen bond ((−)CAHB). Except for (−)CAHB, these interactions all decreased with an elevated pH, resulting in overall decreased OFL sorption. Significant OFL sorption by BS biochars produced at 300 °C, observed even at an alkaline condition was attributed to (−)CAHB. Micropores formed in BS biochar prepared at 500 °C, with a specific surface area as high as 390 m2 g−1 after water washing treatment. However, most micropores could not be accessed by OFL molecules due to the size exclusion effect. Additionally, the inherent K-containing salts may hinder OFL sorption by covering the sorption sites or blocking the inner pores of biochars, as well as releasing OH− into the solution. Thus, BS biochar produced at 300 °C is an excellent sorbent for OFL removal due to its high sorption ability and low energy. Our findings indicate that biochar techniques have potential win–win effects in recycling banana waste with low energy and costs, and simultaneously converting them into promising sorbents for the removal of environmental contaminants.

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“…Temperature also greatly influenced the adsorption of OFL, where in most studies, its increase positively favored the adsorption of the antibiotic from the aqueous medium [46,49,[53][54][55][56]. Among the other parameters, the desorption and reuse of the adsorbent [52,[57][58][59][60][61] and the influence of the coexistence of other drugs and ions in the adsorption process were also extensively explored by the authors [21,38,48,49,53,57,58,[62][63][64][65].…”

Section: Introductionmentioning

confidence: 99%

A review of the antibiotic ofloxacin: Current status of ecotoxicology and scientific advances in its removal from aqueous systems by adsorption technology

Georgin

Franco

Ramos

et al. 2023

Chemical Engineering Research and Design

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Preparation and modification of bagasse biochar unveiling ofloxacin wastewater adsorption

Cited by 3 publications

References 31 publications

Biochar-Based Strategies for Antibiotics Removal: Mechanisms, Factors, and Application

Biochar-Based Strategies for Antibiotics Removal: Mechanisms, Factors, and Application

Insights into the Roles of Surface Functional Groups and Micropores in the Sorption of Ofloxacin on Banana Pseudo-Stem Biochars

A review of the antibiotic ofloxacin: Current status of ecotoxicology and scientific advances in its removal from aqueous systems by adsorption technology

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