Development of novel graphene-like layered hexagonal boron nitride for adsorptive removal of antibiotic gatifloxacin from aqueous solution

Chao, Yanhong; Zhu, Wenshuai; Chen, Jiaxin; Wu, Peiwen; Wu, Xiangyang; Li, Huaming; Han, Chang‐Ri; Yan, Shan

doi:10.1080/17518253.2014.944941

Cited by 39 publications

(15 citation statements)

References 25 publications

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“…And the adsorbate (gatifloxacin) has two aromatic rings, which can serve as a π-electron donor. 12 Besides, Xiong et al suggested that Lewis acid–base interaction plays an important role in removing aromatic sulfocompounds from fuels. 8 In addition, the mechanism of adsorption of aromatic sulfocompounds is suggested to be π-complexation on other adsorbents, such as Ag-Y and Cu-Y zeolites.…”

Section: Introductionmentioning

confidence: 99%

Tuning the Chemical Hardness of Boron Nitride Nanosheets by Doping Carbon for Enhanced Adsorption Capacity

Zhu

Zhang

et al. 2017

ACS Omega

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The chemical hardness of adsorbents is an important physicochemical property in the process of adsorption based on the hard and soft acids and bases (HSAB) theory. Tuning chemical hardness of adsorbents modulated by their concomitants is a promising approach to enhance the adsorptive capacity in principle. In the present work, we report an efficient strategy that the adsorption capacity for aromatic sulfocompounds can be enhanced by tuning the chemical hardness. This strategy is first theoretically explored by introducing C element into the network of hexagonal boron nitride (h-BN) based on a series of model materials (model_ x C, x = 1–5). Computational results show that the chemical hardness is reduced after gradually C-doping, which may lead to an enhancement of adsorption capacity according to the HSAB theory. Then, a series of C-doped h-BN materials (BCN- x , x = 10–50) were controlled synthesized. All of the as-prepared materials show better adsorption capacities (e.g., 27.43 mg g –1 for BCN-50) than pure h-BN. Experiment results show that the adsorption capacity correlates well with the C content in the BCN- x , which is consistent with the results predicted by theoretical calculation. This strategy may be helpful to rationally design highly efficient adsorbents in separation engineering and may be expanded to similar two-dimensional materials, where the π–π interaction is the dominant driven force.

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Section: Introductionmentioning

confidence: 99%

Tuning the Chemical Hardness of Boron Nitride Nanosheets by Doping Carbon for Enhanced Adsorption Capacity

Zhu

Zhang

et al. 2017

ACS Omega

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“…In addition, it was observed that the structural formulas of methylene blue and tetracycline showed no strong bonds with chlorine, showing Lewis basicity. Therefore, a portion of the adsorption driving force may come from the interactions with Lewis acids of sea urchin‐like h‐BN to form the acid‐base complexation 43 . Meanwhile, the introduction of carbon in h‐BN may effectively increase the molecular orbital energy level and reduce the chemical hardness, thereby improving the adsorption capacity of sea urchin‐like h‐BN adsorbents (lower hardness means higher adsorption capacity 31 ).…”

Section: Resultsmentioning

confidence: 99%

“…Therefore, a portion of the adsorption driving force may come from the interactions with Lewis acids of sea urchin-like h-BN to form the acid-base complexation. 43 Meanwhile, the introduction of carbon in h-BN may effectively increase the molecular orbital energy level and reduce the chemical hardness, thereby improving the adsorption capacity of sea urchin-like h-BN adsorbents (lower hardness means higher adsorption capacity 31 ). Also, the defects formed by the staggered h-BN layered structure are also beneficial to the improved h-BN adsorption capacity.…”

Section: F I G U R Ementioning

confidence: 99%

Boron nitride adsorbents with sea urchin‐like structures for enhanced adsorption performance

Liu

Zhao

et al. 2020

J. Am. Ceram. Soc.

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Water pollution, especially caused by organic pollutants, seriously affects people's health and even threatens life. Boron nitride (BN) adsorbents with unique sea urchinlike structures were fabricated after low-temperature treatment, freeze-drying, and high-temperature calcination. Results indicated that the sea urchin-like structure was a combination of fibers spreading outward from the center to its surroundings. As the temperature difference was gradually increased in the low-temperature treatment, the diameter of the sea urchin-like structure decreased and the Brunner-Emmett-Teller surface area increased. The adsorbents showed efficient adsorption rates and excellent reusability for dyes and antibiotics. Specifically, the maximum adsorption capacities for methylene blue and tetracycline were higher than those described in most of the literature, reaching 592.37 and 369.79 mg/g, respectively. This may have be attributed to the sea urchin-like structure of the porous fibers able to trap organic pollutants in the center, which showed strong intermolecular interactions with organic pollutants, that is, π-π bond binding force and acid-base complexation. The obtained BN adsorbents with sea urchin-like structures have great applicability in areas where organic pollutant adsorption is prevalent.

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“…Among these methods, adsorption has been considered as an economic, effective, and attractive technology due to its non‐destructive feature and simple operation . By now, a great number of adsorbents, such as activated carbons , multi‐walled carbon nanotubes , graphene oxide , mesoporous silica , polymer resins , biomass ashes , clay minerals , and graphene‐like boron nitride have been evaluated for tetracycline removal. To date, the development of new adsorbent for removal of the tetracycline is still highly desired.…”

Section: Introductionmentioning

confidence: 99%

“…To date, the development of new adsorbent for removal of the tetracycline is still highly desired. The findings in our previous work demonstrated that graphene‐analogue layered inorganic materials had an excellent potential as adsorbents in the removal of doxycycline and gatifloxacin from aqueous solution and showed high adsorption capacity . Graphene‐analogue layered molybdenum disulfide (G‐MoS 2 ) is a novel material similar to graphene.…”

Section: Introductionmentioning

confidence: 99%

Graphene‐analogue molybdenum disulfide for adsorptive removal of tetracycline from aqueous solution: equilibrium, kinetic, and thermodynamic studies

Chao

Yang

et al. 2017

Env Prog and Sustain Energy

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The performance of graphene‐analogue molybdenum disulfide (G‐MoS2) as an adsorbent for removal of organic contaminant tetracycline from aqueous solution was studied systematically. The synthetic G‐MoS2 showed much better adsorption ability than the commercial MoS2 with more than 90% of tetracycline removal. The kinetics data agreed well with the pseudo‐second order model, and the equilibrium was obtained within 16 h. Langmuir isotherm model provided the best fit to the equilibrium data of tetracycline adsorption than Freundlich and Tempkin models. The adsorption was a spontaneous and endothermic process deduced by the thermodynamic analysis. Adsorption of tetracycline on G‐MoS2 was partly dependent on pH values, but strongly relied on ionic strength. The proposed mechanism was probably synergetic π–π dispersion, hydrophobic effect, and electrostatic interaction. © 2017 American Institute of Chemical Engineers Environ Prog, 36: 815–821, 2017

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Development of novel graphene-like layered hexagonal boron nitride for adsorptive removal of antibiotic gatifloxacin from aqueous solution

Cited by 39 publications

References 25 publications

Tuning the Chemical Hardness of Boron Nitride Nanosheets by Doping Carbon for Enhanced Adsorption Capacity

Tuning the Chemical Hardness of Boron Nitride Nanosheets by Doping Carbon for Enhanced Adsorption Capacity

Boron nitride adsorbents with sea urchin‐like structures for enhanced adsorption performance

Graphene‐analogue molybdenum disulfide for adsorptive removal of tetracycline from aqueous solution: equilibrium, kinetic, and thermodynamic studies

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