The effect of pH on the adsorption of arsenic(III) and arsenic(V) at the TiO 2 anatase [1 0 1] surface

Wei, Zhigang; Liang, Kai Ming; Wu, Yang; Yan-di, Zou; Zuo, Jun-Hui; Cortés‐Arriagada, Diego; Pan, Zhanchang; Hu, Guanghui

doi:10.1016/j.jcis.2015.10.018

Cited by 129 publications

(55 citation statements)

References 31 publications

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“…was computed to be 2.4 eV [56]; also, the adsorption of iAs V and DMA V onto Fe(oxyhydr)oxides reaches adsorption energies of up to ~1.6 eV [57]; while, adsorption energies of up to 3.0 eV were obtained for the arsenate adsorption onto TiO 2 based surfaces [58,59] .…”

Section: Adsorption Of Pentavalent Methylarsenicalsmentioning

confidence: 98%

Aluminum and iron doped graphene for adsorption of methylated arsenic pollutants

Cortés‐Arriagada

Toro–Labbé

2016

Applied Surface Science

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Section: Adsorption Of Pentavalent Methylarsenicalsmentioning

confidence: 98%

Aluminum and iron doped graphene for adsorption of methylated arsenic pollutants

Cortés‐Arriagada

Toro–Labbé

2016

Applied Surface Science

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“…Although several studies report that arsenite removal decreases at highly alkaline pH [22,[64][65][66]. There are some adsorbent materials that showed an increment in the arsenite adsorption capacity as pH increases, such as fly ash [67,68], Mn-natural zeolite [34] and clinoptilolite-supported nanoscale zero-valent iron [40].…”

Section: Adsorbent Efficiency As Function Of the Ph And The Presence mentioning

confidence: 99%

Adsorption of Aqueous As (III) in Presence of Coexisting Ions by a Green Fe-Modified W Zeolite

Medina-Ramírez

Gamero‐Melo²,

Ruiz-Camacho

et al. 2019

Water

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The high toxicity of arsenite and the difficulty to remove it is one of the main challenges for water treatment. In the present work the surface of a low cost zeolite was modified by chemical treatment with a ferrous chloride to enhance its arsenite adsorption capacity. The effect of pH, ions coexistence, concentration, temperature and dosage was studied on the adsorption process. Additionally, the Fe-modified W zeolite was aged by an accelerated procedure and the regeneration of the exhausted zeolite was demonstrated. The Fe-modified W zeolite was stable in the pH range of 3 to 8 and no detriment to its arsenite removal capacity was observed in the presence of coexisting ions commonly found in underground water. The studies showed that the adsorption of As (III) on Fe-modified W zeolite is a feasible, spontaneous and endothermic process and it takes place by chemical bonding. The exhausting process proved the adsorption of 0.20 mg g−1 of As (III) by the Fe-modified W zeolite and this withstand at least five aging cycles without significant changes of its arsenite adsorption capacity. Fe-modified W zeolite prepared from fly ash might be a green and low-cost alternative for removal of As (III) from groundwater.

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“…The solution pH not only influences the physicochemical properties of the adsorbent but also affects the charge of adsorbate presented in the solution [23][24][25]. The effect of initial solution pH on the adsorption of atrazine onto SMB650 was studied using 1500 µg/L atrazine concentration under the condition (Fig.…”

Section: Effect Of Initial Solution Phmentioning

confidence: 99%

Kinetic, Isotherm and Thermodynamic Studies on the Adsorption Behavior of Atrazine onto Sheep Manure-Derived Biochar

Lü¹,

Chen²,

Zhang³

et al. 2019

Pol. J. Environ. Stud.

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Atrazine (2-chloro-4-[ethylamino]-6-[isopropylamino]-s-triazine) is a selective herbicide that has been widely used worldwide due to its low cost and good weeding effect. However, owing to the characteristics such as stable chemical structure, superficial mobility, long half-life and high leaching potential, atrazine has been frequently detected in the surface and ground water in many countries and regions [1-3]. Continuous exposure to atrazine may inhibit the growth of plants and animals. Moreover, atrazine can be absorbed and accumulated by the human body through food chain enrichment, which would disrupt the endocrine systems, alter immune response, retard sexual and embryo development and induce the mammary gland or cancer [4, 5]. Therefore, the removal of atrazine from water

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The effect of pH on the adsorption of arsenic(III) and arsenic(V) at the TiO 2 anatase [1 0 1] surface

Cited by 129 publications

References 31 publications

Aluminum and iron doped graphene for adsorption of methylated arsenic pollutants

Aluminum and iron doped graphene for adsorption of methylated arsenic pollutants

Adsorption of Aqueous As (III) in Presence of Coexisting Ions by a Green Fe-Modified W Zeolite

Kinetic, Isotherm and Thermodynamic Studies on the Adsorption Behavior of Atrazine onto Sheep Manure-Derived Biochar

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