Adsorption capacities of activated carbons for geosmin and 2-methylisoborneol vary with activated carbon particle size: Effects of adsorbent and adsorbate characteristics

Matsui, Yoshihiko; Nakao, Soichi; Sakamoto, Asuka; Taniguchi, Takuma; Pan, Long; Matsushita, Taku; Shirasaki, Nobutaka

doi:10.1016/j.watres.2015.08.017

Cited by 89 publications

(41 citation statements)

References 40 publications

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“…Nonetheless, AC2 had higher ROC removal but lower BET surface area, demonstrating that BET surface area is a poor indicator for the removal of ROC from BTCW. The reason is that only part of the interior region of the carbon particle may be utilized because of the limited penetration of the adsorbate molecules, even though the pore surface has a strong affinity with the adsorbate …”

Section: Resultsmentioning

confidence: 99%

“…In contrast, AC1's O content is much lower. The oxygen content of the carbon has been shown to be positively correlated with the density of hydrophobic sites …”

Section: Resultsmentioning

confidence: 99%

“…The reason is that only part of the interior region of the carbon particle may be utilized because of the limited penetration of the adsorbate molecules, even though the pore surface has a strong affinity with the adsorbate. 25 Pore size distribution plots (Fig. S1) show a marked difference between AC1 and AC2.…”

Section: Effect Of Pore Structurementioning

confidence: 98%

“…The oxygen content of the carbon has been shown to be positively correlated with the density of hydrophobic sites. 25 The high-resolution scans for the C1s and O1s are shown in Fig. 6 30 Although the ACs surface is primarily non-polar, ACs owe their surface chemistry to the existence of heteroatoms such as oxygen, nitrogen, hydrogen, phosphorus and sulfur.…”

Section: Effect Of Surface Chemistrymentioning

confidence: 99%

See 3 more Smart Citations

Factors controlling adsorption of recalcitrant organic contaminant from bio‐treated coking wastewater using lignite activated coke and coal tar‐derived activated carbon

Zhang

Chen

et al. 2017

J of Chemical Tech & Biotech

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BACKGROUND: Low-cost coal-based carbonaceous material has attracted special attention for removal of organics from industrial wastewaters. In this study, coal tar-derived activated carbon (AC1) and lignite activated coke (AC2) were employed to identify the fundamental factors that facilitate the selection of suitable adsorbents for removing recalcitrant organic contaminant (ROC) from bio-treated coking wastewater (BTCW).

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Section: Resultsmentioning

confidence: 99%

“…In contrast, AC1's O content is much lower. The oxygen content of the carbon has been shown to be positively correlated with the density of hydrophobic sites …”

Section: Resultsmentioning

confidence: 99%

Section: Effect Of Pore Structurementioning

confidence: 98%

Section: Effect Of Surface Chemistrymentioning

confidence: 99%

See 2 more Smart Citations

Factors controlling adsorption of recalcitrant organic contaminant from bio‐treated coking wastewater using lignite activated coke and coal tar‐derived activated carbon

Zhang

Chen

et al. 2017

J of Chemical Tech & Biotech

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“…However, the application of microorganism immobilization encountered a bottleneck owing to some disadvantages, including the low utilization of duplicate, high selectivity for immobilization carrier, difficult recovery after applying. Therefore, the carrier for microorganism immobilization played an important role in the process of biodegradation 27 . In this regard, various commercially available and regenerated carriers had attracted great attention, such as inorganic absorption materials and nano-materials 28 .…”

Section: Introductionmentioning

confidence: 99%

Bio-Engineered Graphene-Based Cage for Efficient Local Enrichment and Biodegradation of Aqueous Organic Wastes

Fan

Chen

et al. 2017

Sci Rep

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Microorganism immobilization has attracted great attention as a traditional method to overcome aqueous organic wastes containing N, N-dimethylformamide (DMF). In this approach, graphene oxide was modified with functional polymer firstly to obtain micro-composites material (PGO), and then the prepared composites were deposited on the surface of copper mesh (CM) to block the meshes and CM@PGO was achieved. Moreover, cage-shaped model was designed based on CM@PGO and P. denitrificans was packed inside the cage for batch experiments. This strategy could enrich the local concentration of DMF due to the formation of hydrogen bonds with the oxygen-containing groups from PGO and the character of bacteria in captivity could also contribute to the process of degradation. Results showed that the approach could remove DMF more efficiently about 15% compared with free microorganism and presented excellent cycling performance. Meantime, physical adsorption and chemical adsorption were both contributed to the process of PGO adsorption, and the adsorption isotherm fits Langmuir model well, furthermore, the theoretical maximum of adsorption ability calculated through Langmuir model is 95 mg/g. In other words, this cage-shaped CM@PGO provided a facile platform for treating various wastewaters by altering the species of packed microorganisms, which exhibited considerable prospects for wastewater treatment.

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A magnetic mesoporous chitosan based core‐shells biopolymer for anionic dye adsorption: Kinetic and isothermal study and application of ANN

Tanhaei

Ayati

Lahtinen

et al. 2016

J of Applied Polymer Sci

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In this study, Chitosan/Al2O3/Fe3O4 core‐shell composite microsphere (CAMF) was used as an effective sorbent with high adsorption capacity for the removal of anionic azo dye model from aqueous solution. The obtained composite was characterized by XRD, SEM, EDX, and BET analysis. The results showed the high methyl orange (MO) adsorption in a wide pH range of 4–10 and the optimum adsorbent dosage was obtained 0.6 g L−1. It is indicated that the equilibrium data followed the Langmuir isotherm model and the adsorption kinetic was well fitted with pseudo‐second‐order kinetic model. Also, the adsorption kinetic was controlled by the film diffusion and intra‐particle diffusion, simultaneously. It is revealed that by increasing the particle size from <0.1 μm to ∼0.4 μm, the adsorption capacity did not change, significantly. The adsorption capacity of MO on CAMF was predicted by multilayer perceptron (MLP) neural network at different initial MO concentration, in which the predictions of MLP model had very good agreement with experimental data. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43466.

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Adsorption capacities of activated carbons for geosmin and 2-methylisoborneol vary with activated carbon particle size: Effects of adsorbent and adsorbate characteristics

Cited by 89 publications

References 40 publications

Factors controlling adsorption of recalcitrant organic contaminant from bio‐treated coking wastewater using lignite activated coke and coal tar‐derived activated carbon

Factors controlling adsorption of recalcitrant organic contaminant from bio‐treated coking wastewater using lignite activated coke and coal tar‐derived activated carbon

Bio-Engineered Graphene-Based Cage for Efficient Local Enrichment and Biodegradation of Aqueous Organic Wastes

A magnetic mesoporous chitosan based core‐shells biopolymer for anionic dye adsorption: Kinetic and isothermal study and application of ANN

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