Adsorption of fluoride ions onto non-thermal plasma-modified CeO2/Al2O3composites

Zhang, Tao; Li, Qiurong; Mei, Zhenyu; Xiao, Haiyan; Lu, Hongxiao; Zhou, Yuming

doi:10.1080/19443994.2013.800324

Cited by 18 publications

(6 citation statements)

References 34 publications

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“…6). The effect of both chloride and nitrate on the defluoridation capacity of adsorbents was negligible within the context of all coexisting ions, which was consistent with previous conclusions [3,26]. In contrast, sulfate ions displayed a minor interference (causing a decrease below 10%).…”

Section: The Effect Of Coexisting Ions In Fluoride Aqueous Solution Osupporting

confidence: 89%

“…The data showed that the BET surface areas of the initial SMCB increased appreciably by the coating process. This increase in the surface areas could be assigned to the uniform coating of aluminum hydroxide (as amorphous precipitate of Al(OH) 3 ) on the surface of SMCB as reported by Tripathy et al [9].…”

Section: Characterization Of Initial Smcb and Coated Smcbmentioning

confidence: 79%

“…The United States and Canada began adding fluoride to public water supplies to prevent cavities beginning in 1945 and 1946, respectively [2]. However, excessive ingestion of fluoride leads to serious adverse effects, such as bone cancer and fluorosis [3]. The effective modulation of fluoride in the human body is thus of significant importance.…”

Section: Introductionmentioning

confidence: 99%

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Biosorption of fluoride from drinking water using spent mushroom compost biochar coated with aluminum hydroxide

Chen

Peng

Jiang-yu

et al. 2015

Desalination and Water Treatment

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2015):Biosorption of fluoride from drinking water using spent mushroom compost biochar coated with aluminum hydroxide, Desalination and Water Treatment, A low-cost and highly efficient biosorbent for the removal of fluoride from drinking water from spent mushroom compost (SMC) that was carbonized (spent mushroom compost biochar, SMCB) coated by aluminum hydroxide. Adsorption studies were performed to investigate the influence of adsorbent dosage, initial fluoride concentration, contact time, pH, and coexisting ions on fluoride adsorption. The fluoride adsorption capacity of the coated SMCB was greater than that of uncoated SMCB. Fluoride adsorption by coated SMCB followed the Langmuir isotherm model, and the maximum adsorption capacity was 36.5 mg/g. The fluoride concentration could be reduced to below 1 mg/L from an initial fluoride concentration of 10 mg/L. While the pH of the solution did play an important role in the fluoride removal capacity, with the SMCB performed well under a wide pH range, from 6.0 to 8.0. These findings indicate that fluoride can effectively be removed from drinking water using modified mushroom cultivation waste biomass.

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Section: The Effect Of Coexisting Ions In Fluoride Aqueous Solution Osupporting

confidence: 89%

Section: Characterization Of Initial Smcb and Coated Smcbmentioning

confidence: 79%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Biosorption of fluoride from drinking water using spent mushroom compost biochar coated with aluminum hydroxide

Chen

Peng

Jiang-yu

et al. 2015

Desalination and Water Treatment

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“…[70][71][72] Such a trend has also been shown by other researchers. [73][74][75][76][77] Thus, Ce-Al (1 : 6) was selected for further experiments as it showed maximum adsorption capacity for uoride.…”

Section: Resultsmentioning

confidence: 99%

Investigation of kinetics and adsorption isotherm for fluoride removal from aqueous solutions using mesoporous cerium–aluminum binary oxide nanomaterials

et al. 2021

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“…Although fluoride can be beneficial for human health, it also can be poisonous, especially when high concentrations of fluoride are ingested by drinking water for a long time. Lots of health problems can be induced by high concentrations of fluoride, such as dental fluorosis, skeletal fluorosis, arthritis, etc . According to the World Health Organization (WHO) guidelines, less than 1.5 mg/L is an appropriate fluoride concentration in drinking water for public health .…”

Section: Introductionmentioning

confidence: 99%

Synthesis, performance, and mechanism of magnesium‐iron‐aluminum trimetal composite as an adsorbent for fluoride removal in water treatment

et al. 2016

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In this study the Mg‐Fe‐Al trimetal composite was successfully synthesized by an easy co‐precipitation method and used as the adsorbent for fluoride removal from aqueous solutions. Synthetic conditions such as Mg/Fe/Al molar ratio and calcination temperature were studied to optimize the adsorbent. The adsorbents were characterized by X‐ray diffraction (XRD), scanning electron microscopy (SEM), energy‐dispersive X‐ray spectroscopy (EDS), and Fourier transform infrared (FTIR). Batch adsorption studies were conducted under various conditions, such as different fluoride concentration, contact time, temperature, initial solution pH, and coexisting anions. Results indicated that the adsorbent obtained the maximum adsorption capacity of 92.85 mg/g for fluoride with a Mg/Fe/Al molar ratio of 30:1:4, calcined at 500 °C, at near‐neutral pH and room temperature (25 °C). The adsorption data were fitted well with the Langmuir isotherm model and the pseudo‐first order kinetic model. The adsorption mechanism involved electrostatic interaction on the surface, ion exchange interaction, and reconstruction of original layered structure by rehydration of mixed metal oxides. All results indicated that the Mg‐Fe‐Al trimetal composite can be a very promising material, has potential application in the removal of fluoride in water treatment, and has positive effects on human health.

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Adsorption of fluoride ions onto non-thermal plasma-modified CeO₂/Al₂O₃composites

Cited by 18 publications

References 34 publications

Biosorption of fluoride from drinking water using spent mushroom compost biochar coated with aluminum hydroxide

Biosorption of fluoride from drinking water using spent mushroom compost biochar coated with aluminum hydroxide

Investigation of kinetics and adsorption isotherm for fluoride removal from aqueous solutions using mesoporous cerium–aluminum binary oxide nanomaterials

Synthesis, performance, and mechanism of magnesium‐iron‐aluminum trimetal composite as an adsorbent for fluoride removal in water treatment

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