Highly Porous Ceria as an Adsorbent for Removing Artificial Dyes from Water

Sienkiewicz, Andrzej; Chrzanowska, Agnieszka; Kierys, Agnieszka

doi:10.1007/s40710-024-00681-y

Cited by 1 publication

(2 citation statements)

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“…The second one lasts from 50 min to 800 min, and the third stage is from 800 min to 1440 min. The overall adsorption rate will result from well-recognized results in the literature and consecutive steps [ 14 , 30 , 31 ].…”

Section: Resultsmentioning

confidence: 99%

“…As it follows from ref. [ 14 ], with the conditions mentioned above, this synthesis route led to the production of highly porous ceria (specific surface area, S BET = 187 m 2 g −1 , and pore volume, V p = 0.49 cm 3 g −1 ) in the form of easy-to-handle micro particles built of ceria nanocrystallites (<10 nm), with a surface concentration ratio Ce 3+ :Ce 4+ equal to 0.26. The ceria produced via the hard template method was selected for this study, because it was already proven that similar ceria have great potential for inorganic As species adsorption [ 13 ].…”

Section: Methodsmentioning

confidence: 99%

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The Removal of Arsenic and Its Inorganic Forms from Marine Algae—A Base for Inexpensive and Efficient Fertilizers

Ostrowski,

Drozd,

Olchowski

et al. 2024

Molecules

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Newly synthesized cerium oxide was successfully obtained by the hard templating route. The optimal As(III) and As(V) adsorption onto the studied adsorbent was reached for the initial pH of 4.0 and a contact time of 10 h. The highest static adsorption capacities for As(III) and As(V) were 92 mg g−1 and 66 mg g−1, respectively. The pseudo-second-order model was well fitted to the As(III) and As(V) experimental kinetics data. The Langmuir model described the As(III) and As(V) adsorption isotherms on synthesized material. The adsorption mechanism of the studied ions onto the synthesized cerium oxide was complex and should be further investigated. The optimal solid–liquid ratio during the proposed aqueous extraction of inorganic As from the Fucus vesiculosus algae was 1:50. The optimal dosage of the synthesized cerium oxide (0.06 g L−1) was successfully applied for the first time for inorganic As removal from the aqueous algal extract.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%