Adsorption performance and mechanism of As(V) uptake over mesoporous Y–Al binary oxide

Han, Cuiping; Hang, Liu; Chen, Huirong; Zhang, Liming; Wan, Gengping; Shan, Xindi; Deng, Jiushuai; Luo, Yongming

doi:10.1016/j.jtice.2016.05.003

Cited by 15 publications

(2 citation statements)

References 43 publications

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“…Ferric (oxyhydr)oxides are considered as the most important adsorbents for fixing As due to their high natural abundance and good binding affinities to As [11,12,13]. It is obvious that the migration of As is dominantly regulated by the dissolution of ferric (oxyhydr)oxides [14].…”

Section: Introductionmentioning

confidence: 99%

Oxalic Acid-Induced Photodissolution of Ferrihydrite and the Fate of Loaded As(V): Kinetics and Mechanism

Ren

Han

et al. 2019

Nanomaterials

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The fate of arsenic in the water environment is of great concern. Here, the influences of oxalic acid and UV light illumination on the dissolution of naked ferrihydrite (Fhy), Fhy loaded with As(V) [Fhy*-As(V)], as well as the fate of As(V) at pH 3.0 were studied. With the assistance of oxalic acid, complexes of Fe(III)-oxalic acid produced on Fhy/Fhy*-As(V) were reduced to Fe(II)-oxalic acid by photo-induced electrons under UV light irradiation. UV light has nearly no impact on the release of As(V) in the system of Fhy*-As(V) without the assistance of oxalic acid. Nevertheless, in the existence of oxalic acid, UV light illumination resulted in the contents of liberated As(V) decreased by 775–1300% compared to that without light. Considering the coexistence of As(V), oxalic acid as well as iron oxides in aquatic environments, the present study revealed that UV illumination could enhance the retention of As(V) on Fhy in the acidic water environment containing oxalic acid.

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Section: Introductionmentioning

confidence: 99%

Oxalic Acid-Induced Photodissolution of Ferrihydrite and the Fate of Loaded As(V): Kinetics and Mechanism

Ren

Han

et al. 2019

Nanomaterials

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“…The impregnated adsorbent has the advantage that it is stable and has promising regeneration capacity in comparison with normal adsorbents [10]. The mesoporous materials have large surface area, better porous arrangement, thus these porous materials are produced by incipient-wetness impregnation technique [18]. The impregnation method is generally carried out in two steps.…”

Section: Different Types Of Surface Modification Methodsmentioning

confidence: 99%

Various Impregnation Methods Used for the Surface Modification of the Adsorbent: A Review

Girish

2018

IJET

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The water contamination is an important crisis which is to be addressed in the recent time. The pollutants present in wastewater are treated by adsorption using activated carbon, which is considered as one of the effective method. The adsorbent has to be modified to improve the adsorption capacity and the surface properties. Various methods such as physical, chemical treatment, impregnation and functionalization techniques are available. Impregnation is one of the effective method carried out for surface modification and to increase the adsorption capacity. Therefore, current study investigates the different impregnation methods used for the surface modification of the adsorbent. It also reviews the various precursors used for adsorbent preparation, the impregnating agent, the operating conditions and the adsorption capacity of the adsorbent.

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Effect of aluminum modified mesoporous SBA-15 on surface properties and arsenic adsorption performance

Liu

et al. 2022

J Porous Mater

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Adsorption performance and mechanism of As(V) uptake over mesoporous Y–Al binary oxide

Cited by 15 publications

References 43 publications

Oxalic Acid-Induced Photodissolution of Ferrihydrite and the Fate of Loaded As(V): Kinetics and Mechanism

Oxalic Acid-Induced Photodissolution of Ferrihydrite and the Fate of Loaded As(V): Kinetics and Mechanism

Various Impregnation Methods Used for the Surface Modification of the Adsorbent: A Review

Effect of aluminum modified mesoporous SBA-15 on surface properties and arsenic adsorption performance

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