Exceptional levofloxacin removal using biochar-derived porous carbon sheets: Mechanisms and density-functional-theory calculation

Yang, Dongxu; Li, Jun; Luo, Liang; Deng, Ruoyu; He, Qiang; Chen, Yi

doi:10.1016/j.cej.2020.124103

Cited by 75 publications

(22 citation statements)

References 59 publications

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“…Studies have reported that HA could adsorb on carbon materials via π-π interactions, hydrogen bonds, hole filling and electrostatic interactions, generating a competition mechanism with the adsorption of aromatic compounds [46]. In this study, the concentration of HA showed a negligible effect on the adsorption capacity of SMX on R-BC700 with a concentration increase of HA from 0 to 80 mg•L −1 , ascribed to the steric hindrance of HA [47]. Additionally, HA-containing acidic groups (e.g., carboxyl and phenolic hydroxyl groups) would dissociate, leading to the negatively charged HA at experimental conditions [48].…”

Section: The Effect Of Coexisting Interferents On Smx Adsorptionmentioning

confidence: 55%

The Effects of Chemical Oxidation and High-Temperature Reduction on Surface Functional Groups and the Adsorption Performance of Biochar for Sulfamethoxazole Adsorption

Hou

et al. 2022

Agronomy

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Biochar is a beneficial adsorbent for the treatment of organic pollutants in the environment. The association of oxygen functional groups and adsorption behaviors has not been well investigated. In this paper, the oxidation-modified biochar (O-BC) and the reduction-modified biochar (R-BCX) were prepared by Co2+/peroxymonosulfate chemical oxidation and high-temperature reduction, respectively. The modified biochars were used to remove sulfamethoxazole (SMX) from water, and the adsorption amounts of biochar followed the order of R-BC700 (14.66 mg·L−1) > O-BC (4.91 mg·L−1) > BC (0.16 mg·L−1). Additionally, the effects of water chemical conditions (i.e., ionic strength, solution pH and humic acid (HA) concentration) on the adsorption of SMX on biochar, were further investigated. Combining physical adsorption, X-ray electron spectroscopy, and zeta potentiometer characterization techniques, the effect of functional groups on the adsorption mechanism was further explored, revealing the importance of various oxygen functional groups for SMX adsorption. The results showed that C=O and C=C, resulting in π–π interaction, were in favor of the adsorption of SMX, while C-O was not conducive to the adsorption of SMX, due to the steric hindrance and the negative surface charge. Additionally, the hydrophobic effect of the biochar was also one of the adsorption mechanisms.

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Section: The Effect Of Coexisting Interferents On Smx Adsorptionmentioning

confidence: 55%

The Effects of Chemical Oxidation and High-Temperature Reduction on Surface Functional Groups and the Adsorption Performance of Biochar for Sulfamethoxazole Adsorption

Hou

et al. 2022

Agronomy

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“…(Figure S8). Furthermore, the effects of temperature (25-45°C) and pH (5)(6)(7)(8) to the system are also investigated, respectively. Details were discussed in the supporting information (Figure S9) (Table S5) (Table S6).…”

Section: Resultsmentioning

confidence: 99%

“…[3,4] It has become one of the most valuable themes in the 21st century. [5] Human activities, especially the development of the industry as well as the illegal treatment of industrial wastewater, leading to the discharge of a large number of pollutants such as pesticides, chemical fertilizers, herbicides, plasticizers, and drugs into the water body. [6][7][8] The physical and chemical properties of the water body were changed by these pollutants and thus destroying the ecosystem.…”

Section: Introductionmentioning

confidence: 99%

Green Synthesis and Optimization of 3D Nitrogen‐Doped Carbon Network via Biomass Waste for Highly Efficient Bisphenol S Adsorption

Zhao

Hong

et al. 2021

ChemistrySelect

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In this paper, a 3D nitrogen-doped carbon network with excellent adsorption properties was prepared for bisphenol S (BPS) removal from water. An optimized sample B-T700-N3 with high Langmuir specific surface area as well as plentiful heteroatoms was screened out. Benefiting from the synergistic effect of conjugation and hydrogen bonding between the adsorbent and bisphenol S, B-T700-N3 demonstrated superior adsorption performance. The maximum adsorption amount (q max,e ) of the B-T700-N3 at equilibrium was determined to be up to 91 mg/g, which was comparable or even higher than that of the state-of-the-art reported adsorbents. Experimental results illustrated that this adsorbent could also effectively remove other bisphenols (BPA, BPAF) from water. Overall, this novel adsorbent demonstrated a competitive performance for bisphenols removal in aqueous solution and can be a highly interesting candidate for industrial applications.

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“…14b, the closest interaction distance is 2.52 Å through π–π stacking configurations, corresponding to high adsorption performance. 276 Sludge-based adsorbent derived from beverage industry demonstrated removal of almost 85.16% of ibuprofen, ketoprofen and paracetamol compounds. 277 Similarly, functionalized ACs prepared from paper mill exhibited distinct adsorption selectivity for six different pharmaceuticals.…”

Section: Applications Of Nanoporous Carbonsmentioning

confidence: 99%

Recent advancement of biomass-derived porous carbon based materials for energy and environmental remediation applications

et al. 2022

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Exceptional levofloxacin removal using biochar-derived porous carbon sheets: Mechanisms and density-functional-theory calculation

Cited by 75 publications

References 59 publications

The Effects of Chemical Oxidation and High-Temperature Reduction on Surface Functional Groups and the Adsorption Performance of Biochar for Sulfamethoxazole Adsorption

The Effects of Chemical Oxidation and High-Temperature Reduction on Surface Functional Groups and the Adsorption Performance of Biochar for Sulfamethoxazole Adsorption

Green Synthesis and Optimization of 3D Nitrogen‐Doped Carbon Network via Biomass Waste for Highly Efficient Bisphenol S Adsorption

Recent advancement of biomass-derived porous carbon based materials for energy and environmental remediation applications

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