Development and optimization of hydroxyapatite/kaolin-based ceramic materials as potential adsorbents for water purification

Iji, Juliana O.; Ibrahim, Fatima B.; Argungu, Abdullahi S.; Obada, David O.

doi:10.1016/j.envadv.2023.100419

Cited by 5 publications

(1 citation statement)

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“…Moreover, Sb(Ⅲ) can be rapidly oxidized to Sb(Ⅴ) under the action of manganese dioxide, and it is known in the literature that Sb(Ⅴ) can be strongly adsorbed on various types of iron oxide in the form of intra-sphere bidentate binuclear complexes (Liu, Wang, Xiang, Wu, Yan, Zhang, Lin, & Chai, 2023), with a decrease in antimony content in the solution. Meanwhile, Kaolin is structurally similar to seafoam and is a typical layered silica-aluminate mineral with layers connected by hydrogen bonding and a loose and porous structure with a large specific surface area, making it an excellent adsorbent material (Iji, Ibrahim, Argungu, & Obada, 2023). Therefore, in this paper, hydrothermal synthesis method was adopted, Kaolin was selected as the carrier, loaded with iron-manganese oxide.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Kaolin Composites and Its Adsorption for Sb(Ⅲ)

Luo,

Tang,

Zhang

et al. 2023

ASIR

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Antimony is an important element in the production of flame retardants and semiconductor materials. In the process of antimony mining, it may cause local environmental pollution, which has adverse effects on human health, and the development of economical and efficient adsorbents to remove antimony from wastewater has become a hot research topic. In this paper, the hydrothermal synthesis method was adopted, and purified Kaolin was selected as the carrier, potassium permanganate, manganese chloride and ferric chloride are the metal sources, urea is the precipitant, and sodium dodecyl benzene sulfonate is the structure guide agent. Under the conditions of 5% mass fraction of dispersant, loading temperature of 140 ℃, reaction time of 8 h, mass ratio of iron to manganese of 1.84:1, and mass of precipitant of 0.9 g, the composites prepared were effective in adsorbing the Sb(Ⅲ) from the wastewater. The optimum adsorption efficiency of the prepared composites on Sb(Ⅲ) is 92.83%, which showed excellent adsorption performance.

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Section: Introductionmentioning

confidence: 99%