Study on the adsorption performance of carbon-magnetic modified sepiolite nanocomposite for Sb(V), Cd(II), Pb(II), and Zn(II): Optimal conditions, mechanisms, and practical applications in mining areas.

A carbon-magnetic modified sepiolite nanocomposite (γ-FeO/SiO-Mg(OH)@BC) was synthesized using a hydrothermal method, consisting of γ-FeO, activated sludge biochar (BC), and alkali-modified sepiolite. Its ability to remove heavy metals such as Sb(V), Pb(II), Cd(II), and Zn(II) was investigated through adsorption experiments. Using response surface optimization, the optimal adsorption conditions were determined: adsorption time = 3.

Adsorption of Sb(III) and Pb(II) in wastewater by magnetic γ-FeO-loaded sludge biochar: Performance and mechanisms.

Magnetically modified carbon-based adsorbent (BC@γ-FeO) was prepared through facile route using activated sludge biomass and evaluated for the simultaneous removal of Sb(III) and Pb(II). BC@γ-FeO exhibited outstanding Sb(III) and Pb(II) adsorption capacity when 200 mg of adsorbent was employed at pH 5.0 for 240 min, with the removal efficiency higher than 90%.

Characterization of an Iron-Copper Bimetallic Metal-Organic Framework for Adsorption of Methyl Orange in Aqueous Solution.

Iron-based organic frame material MIL-53 (Fe) was synthesized by the hydrothermal method with Cu incorporated to obtain bimetallic composite MIL-53 (Fe, Cu). The structure and morphology of the material were characterized by SEM, XRD, BET, FTIR, XPS, and zeta potential. The adsorption performance of MIL-53 (Fe, Cu) on methyl orange was tested under a variety of conditions, including the effects of pH and material dosage, by the static adsorption test.

Mesoporous Silica Nanoparticles for the Uptake of Toxic Antimony from Aqueous Matrices.

Contamination of water sources by toxic antimony Sb(III) ions poses a threat to clean water supplies. In this regard, we have prepared a mesoporous silica nanoparticle (MSN)-derived adsorbent by reverse microemulsion polymerization, using cetyltrimethylammonium chloride (CTAC) and triethanolamine (TEA) as co-templates. The physical and chemical properties were characterized using advanced tools.

Optimization of the adsorption and removal of Sb(iii) by MIL-53(Fe)/GO using response surface methodology.

In this study, a graphene oxide metal-organic framework (MIL-53(Fe)/GO) composite adsorbent was successfully synthesized using a simple method at room temperature. The specific surface area of the synthesized MIL-53(Fe)/GO nanoparticles was 268.43 m g, with an average pore size of 2.