Arsenate removal from aqueous solution by montmorillonite and organo-montmorillonite magnetic materials

Barraqué, Facundo; Montes, María Luciana; Fernández, Mariela Alejandra; Candal, Roberto; Sánchez, Rosa M. Torres; Marco-Brown, Jose L.

doi:10.1016/j.envres.2020.110247

Cited by 29 publications

(4 citation statements)

References 60 publications

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“…Bentonite is a clay mineral collection of fine particles with high opening volume and particular active sites ( 17 , 79 ). Bentonite is a widely used porous adsorbent aluminum phyllosilicate clay with high adsorption capability, chemical and mechanical solidity, and unique inter-lamellar structural properties ( 80 , 81 ). The metal ion belongings, preliminary concentration, adsorbent quantity, and operational circumstances (contacting time, pH, temperature, etc.)…”

Section: Discussionmentioning

confidence: 99%

Oxidative stress and toxicity produced by arsenic and chromium in broiler chicks and application of vitamin E and bentonite as ameliorating agents

Mashkoor

Al-Saeed²,

Guangbin³

et al. 2023

Front. Vet. Sci.

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The present study investigated the adverse effects of arsenic and chromium in broilers and ascertained the role of vitamin E and bentonite in alleviating their harmful effects. For this purpose, we experimented on 180 one-day-old broiler chickens. The feed was administered to broiler chicks of groups 2, 6, 7, 8, and 9 chromium @ (270 mg.kg−1 BW). Groups 3, 6, 7, 8, and 9 were administered arsenic @ (50 mg.kg−1 BW). Groups 4, 7, and 9 received vitamin E (150 mg.kg−1 BW), and groups 5, 8, and 9 received bentonite (5%), respectively. Group 1 was kept in control. All the broiler chicks treated with chromium and arsenic showed a significant (p < 0.05) decline in erythrocytic parameters on experimental days 21 and 42. Total proteins decreased significantly, while ALT, AST, urea, and creatinine increased significantly (p < 0.05). TAC and CAT decreased significantly (p < 0.05), while TOC and MDA concentrations increased significantly (p < 0.05) in chromium and arsenic-treated groups on experimental days 21 and 42. Pearson correlation analysis revealed a strong positive correlation between TAC and CAT (Pearson correlation value = 0.961; p < 0.001), similarly TOC and MDA positive correlation (Pearson correlation value = 0.920; p < 0.001). However, TAC and CAT showed a negative correlation between TOC and MDA. The intensity of gross and microscopic lesions was more in chromium (270 mg.kg−1) and arsenic (50 mg.kg−1) singly or in combination-treated groups. Thus, broiler chicks treated with chromium plus arsenic exhibited higher gross and microscopic lesion intensity than other treated groups. Fatty degeneration, severe cytoplasmic vacuolar degeneration, and expansion of sinusoidal spaces were the main lesions observed in the liver. Kidneys showed renal epithelial cells necrosis, glomerular shrinkage, and severe cytoplasmic vacuolar degeneration. Co-administration of bentonite along with chromium and arsenic resulted in partial amelioration (group 8) compared to groups 7 and 9, administered arsenic + chromium + vitamin E and arsenic + chromium + vitamin E + bentonite, respectively. It was concluded that arsenic and chromium cause damage not only to haemato-biochemical parameters but also lead to oxidation stress in broilers. Vitamin E and bentonite administration can ameliorate toxicity and oxidative stress produced by arsenic and chromium.

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Section: Discussionmentioning

confidence: 99%

Oxidative stress and toxicity produced by arsenic and chromium in broiler chicks and application of vitamin E and bentonite as ameliorating agents

Mashkoor

Al-Saeed²,

Guangbin³

et al. 2023

Front. Vet. Sci.

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“…The structural formula was found to be [(Si 3.89 Al 0.11 )(Al 1.43 Fe 3+ 0.28 Mg 0.30 )O 10 (OH) 2 ]Na + 0.41. The isoelectric point and the specific surface area were 2.7 and 34 m 2 g –1 , respectively . The MMT cation exchange capacity (CEC) was determined by the Cu-triethylenetetramine method and the value was 0.825 mmol c g –1 .…”

Section: Methodsmentioning

confidence: 99%

Spectroscopic Approach on Bulk and Surface Properties of Fungal Biomass-Clay Adsorbents: Effect of Temperature and Amount of Clay during Synthesis

Olivelli

Schampera

Woche

et al. 2022

Ind. Eng. Chem. Res.

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The physicochemical properties of an enhanced adsorbent material generated by clays and fungal biomass can be modified systematically. We used spectroscopic techniques to investigate the interaction mechanisms between biomass and clay and how surface properties change with synthesis temperature and clay amounts. Biomass-clay complexes were synthesized and either shock-frozen and freeze-dried or dried at 60 °C in the oven. Surface and bulk properties were analyzed by scanning electron microscopy, attenuated total reflectance-Fourier transform infrared (FTIR) spectroscopy, X-ray photoelectron spectroscopy (XPS), and by wettability and surface charge measurements. Interactions of specific biomass-related molecules with clay and changes in physicochemical properties were observed. Higher amounts of clay caused a decrease in particle aggregation while the biomass arranged more evenly. XPS proved interactions due to exchange reactions between Na from the clay and biomass external organic compounds. FTIR, wettability, surface charge, and XPS indicated a less ordered arrangement of the biomass on the clay when drying was performed at 60 °C. The properties of these types of materials define their potential use in future applications. These results indicate the possibility of the selective creation of bioclays: more hydrophobic, with a higher content of organic matter or more specific functional groups on the surface.

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“…Among them, those based on montmorillonite (Mt) and alkyltrimethylammonium cations have been proposed as antifungal materials [6,7] and pollutant adsorption materials [8,9]. More recently, organoclays with a magnetic response, that is, organoclays modified by the growth of magnetic Fe oxide particles, have also been employed for the removal of heavy metals, dyes, and arsenic [10][11][12]. The combination of magnetic nanoparticles with clays has been considered for enzymatic immobilization [13,14], the development of catalytic mate-rials [15,16], environmental remediation [17][18][19][20], and the design of biocompatible materials [21].…”

Section: Introductionmentioning

confidence: 99%

Development of antibacterial magnetic clay-based nanocomposites for water treatment

Horue,

Barraqué,

Montes

et al. 2024

Comptes Rendus. Chimie

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Organoclays were prepared using Argentinean montmorillonite (Mt), hexadecyltrimethylammonium, or benzalkonium chloride at different concentrations. Surfactant incorporation, a key factor in biocide capacity, was estimated using interlayer space and thermogravimetric analysis (TGA). Subsequently, Fe oxides were grown on the organoclays. Saturation magnetization indicated that all magnetic composites could respond to an external magnetic field. Inhibition experiments showed high antibacterial activity against Enterococcus faecium, Escherichia coli, and Salmonella typhimurium. The synthesized nanocomposites loaded with 150% CEC (cation exchange capacity) of hexadecyltrimethylammonium were the most effective. Those results were more precisely investigated using the viable plate count method. The magnetic materials had a similar antimicrobial effect to those without magnetic properties, indicating that Fe oxides can be nucleated to impart a magnetic response without affecting the biocide properties. The organoclays showed higher antibacterial activity against E. coli than against the other bacteria assayed. In addition, the agar disk-diffusion method

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Arsenate removal from aqueous solution by montmorillonite and organo-montmorillonite magnetic materials

Cited by 29 publications

References 60 publications

Oxidative stress and toxicity produced by arsenic and chromium in broiler chicks and application of vitamin E and bentonite as ameliorating agents

Oxidative stress and toxicity produced by arsenic and chromium in broiler chicks and application of vitamin E and bentonite as ameliorating agents

Spectroscopic Approach on Bulk and Surface Properties of Fungal Biomass-Clay Adsorbents: Effect of Temperature and Amount of Clay during Synthesis

Development of antibacterial magnetic clay-based nanocomposites for water treatment

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