The adsorption, regeneration and engineering applications of biochar for removal organic pollutants: A review

Dai, Yingjie; Zhang, Naixin; Xing, Chuanming; Cui, Qingxia; Sun, Qiya

doi:10.1016/j.chemosphere.2019.01.161

Cited by 632 publications

(180 citation statements)

References 106 publications

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“…SC from any type of feedstock is produced under high heating rates and varying temperature regimes by pyrolysis, which is the degradation of a material in the absence of oxygen [ 38 ]. The pyrolysis process can be sub-classed into conventional pyrolysis, fast pyrolysis, flash pyrolysis, and low pyrolysis [ 39 ].…”

Section: Source Type and Productionmentioning

confidence: 99%

“…Contaminants tend to describe a wide array of chemical, physical, and biological agents that cause deleterious environmental effects. Such contaminants may be either organic or inorganic and generated from either natural sources or anthropogenic sources [ 38 ]. Irrespective of their location in environmental media (air, soil, water), their removal or degradation can be challenging since contaminants can transform and exist in different molecular states.…”

Section: Contaminant Adsorptionmentioning

confidence: 99%

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Remediation with Semicoke-Preparation, Characterization, and Adsorption Application

Lartey-Young

2020

Materials

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Development of low-cost contaminant sorbents from industrial waste is now an essential aspect of the circular economy since their disposal continues to threaten ecological integrity. Semicoke (SC), a by-product generated in large quantities and described as solid waste from gasification of low-rank coal (LRC), is gaining popularity in line with its reuse capacity in the energy industry but is less explored as a contaminant adsorbent despite its physical and elemental carbon properties. This paper summarizes recent information on SC, sources and production, adsorption mechanism of polluting contaminants, and summarizes regeneration methods capable of yielding sustainability for the material reuse.

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Section: Source Type and Productionmentioning

confidence: 99%

Section: Contaminant Adsorptionmentioning

confidence: 99%

Remediation with Semicoke-Preparation, Characterization, and Adsorption Application

Lartey-Young

2020

Materials

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“…Schematic interactions occurring between organic molecules and biochar particles, as reported by Dai et al[144].…”

mentioning

confidence: 91%

A Review of Non-Soil Biochar Applications

et al. 2020

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Biochar is the solid residue that is recovered after the thermal cracking of biomasses in an oxygen-free atmosphere. Biochar has been used for many years as a soil amendment and in general soil applications. Nonetheless, biochar is far more than a mere soil amendment. In this review, we report all the non-soil applications of biochar including environmental remediation, energy storage, composites, and catalyst production. We provide a general overview of the recent uses of biochar in material science, thus presenting this cheap and waste-derived material as a high value-added and carbonaceous source.

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“…Adsorption method is a simple, cheap, and practical technique for removing pollution, particularly in wastewater samples such as industrial, clinical, and biological waste samples (Dai, Zhang, Xing, Cui, & Sun, 2019). In the procedure, a suitable sorbent was poured into the waste sample to the contaminant adsorption.…”

Section: Introductionmentioning

confidence: 99%

Adsorptive removal of enrofloxacin with magnetic functionalized graphene oxide@ metal–organic frameworks employing D‐optimal mixture design

Gordi

Ghorbani

Khakhiyani

2020

Water Environment Research

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A novel sorbent based on a mixture of magnetic functionalized graphene oxide and MOFs was developed to remove enrofloxacin (EFX) from water samples. The prepared sorbent was characterized using Fourier transform infrared spectra, scanning electron microscope images, and X‐ray powder diffraction pattern. The sorbent compositions were optimized by the mixture experimental design. Under the optimal condition, the percentages of each sorbent component, including triethylene tetramine‐functionalized graphene oxide (FGO), Fe3O4, and MOF‐5, were 40%, 21%, and 39%, respectively. Besides, the intraparticle diffusion and pseudo‐second‐order kinetic models can describe the EFX adsorption procedure because of two adsorption mechanisms of EFX on FGO and MOF‐5. A positive standard enthalpy of 49.80 kJ/mol indicated the EFX adsorption is endothermic with a chemisorption process. The negative values of ΔGo obtained in the range of −8.979 to −3.431 kJ/mol at all studied temperatures showed that the adsorption process was also spontaneous. The Langmuir and Freundlich isotherm models were analyzed with the partition coefficient to reduce bias in the isotherm model evaluation. The maximum adsorption capacity of 344.83 mg/g and a high partition coefficient of 17.42 g/L in an initial EFX concentration of 10 mg/L were obtained for the EFX removal. Practitioner points Magnetic functionalized graphene oxide @MOF‐5 as a sorbent for the enrofloxacin removal is synthesized. The percentage amount of each component of the sorbent is optimized using the D‐optimal mixture design. Adsorption mechanisms of enrofloxacin on magnetic functionalized graphene oxide @MOF‐5 are discussed. Thermodynamic parameters for the enrofloxacin adsorption with the sorbents are determined. Isotherm model for the enrofloxacin removal with the sorbent is investigated.

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The adsorption, regeneration and engineering applications of biochar for removal organic pollutants: A review

Cited by 632 publications

References 106 publications

Remediation with Semicoke-Preparation, Characterization, and Adsorption Application

Remediation with Semicoke-Preparation, Characterization, and Adsorption Application

A Review of Non-Soil Biochar Applications

Adsorptive removal of enrofloxacin with magnetic functionalized graphene oxide@ metal–organic frameworks employing D‐optimal mixture design

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