Fabrication of magnetic porous Fe–Mn binary oxide nanowires with superior capability for removal of As(III) from water

Cui, Hao‐Jie; Cai, Jie-Kui; Zhao, Huan; Yuan, Baoling; Cui-ling, AI; Fu, Ming‐Lai

doi:10.1016/j.jhazmat.2014.06.054

Cited by 63 publications

(24 citation statements)

References 30 publications

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“…Furthermore, arsenic adsorption remain stable in a wide pH range of 2-10, which is a limitation in most adsorbents [298]. Magnetic porous Fe-Mn binary oxide nanowires have been fabricated to remove As(III) with the adsorption capacity increasing with increasing manganese oxide in the composite, and with an initial Fe:Mn molar ratio of 1:3 exhibiting the highest adsorption capacity [299]. A novel composite adsorbent (HBC-Fe3O4-MnO2) has been synthesized by combining honeycomb briquette cinders (HBC) with Fe3O4 and MnO2 through a coprecipitation process for enhanced As(III) and As(V) removal.…”

Section: Arsenic Phosphate Molybdate Fluoride Seleniummentioning

confidence: 99%

Environmental implications and applications of engineered nanoscale magnetite and its hybrid nanocomposites: A review of recent literature

2017

Journal of Hazardous Materials

308

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Section: Arsenic Phosphate Molybdate Fluoride Seleniummentioning

confidence: 99%

Environmental implications and applications of engineered nanoscale magnetite and its hybrid nanocomposites: A review of recent literature

2017

Journal of Hazardous Materials

308

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“…Elemental analysis results (Table S1) indicated that accounting carbon elements were 77.4% and 57.29% in the MBC and FM-MBC, respectively. Oxygen element accounting in MBC increased from 8.94% to 28.31% in FM-MBC; maybe some surface oxygen functional groups were formed on the FM-MBC surface [18]. The specific surface area of FM-MBC was 74.73 m 2 /g by the nitrogen adsorption-desorption method (BET-N 2 ).…”

Section: Elemental Analysis and Specific Surface Areamentioning

confidence: 98%

Preparation and Characterization of Fe-Mn Binary Oxide/Mulberry Stem Biochar Composite Adsorbent and Adsorption of Cr(VI) from Aqueous Solution

Liang

Zhu

et al. 2020

IJERPH

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This study details the preparation of Fe-Mn binary oxide/mulberry stem biochar composite adsorbent (FM-MBC) from mulberry stems via the multiple activation by potassium permanganate, ferrous chloride, triethylenetetramine, and epichlorohydrin. The characteristics of FM-MBC had been characterized by SEM-EDS, BET, FT-IR, XRD, and XPS, and static adsorption batch experiments such as pH, adsorption time, were carried out to study the mechanism of Cr(VI) adsorption on FM-MBC and the impact factors. The results indicated that in contrast with the mulberry stem biochar (MBC), the FM-MBC has more porous on surface with a BET surface area of 74.73 m2/g, and the surface loaded with α-Fe2O3 and amorphization of MnO2 particles. Besides, carboxylic acid, hydroxyl, and carbonyls functional groups were also formed on the FM-MBC surface. At the optimal pH 2.0, the maximum adsorption capacity for Cr(VI) was calculated from the Langmuir model of 28.31, 31.02, and 37.14 mg/g at 25, 35, and 45 °C, respectively. The aromatic groups, carboxyls, and the hydroxyl groups were the mainly functional groups in the adsorption of Cr(VI). The mechanism of the adsorption process of FM-MBC for Cr(VI) mainly involves electrostatic interaction, surface adsorption of Cr(VI) on FM-MBC, and ion exchange.

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“…Among them, Fe–Mn binary oxide (FMBO) demonstrated outstanding adsorption abilities, due to its high specific surface area and functional groups, which can react with specifically ions (Awual, ; Luo, Tian, Yang, Zhang, & Yan, ; Zhang, Qu, Liu, Liu, & Wu, ). FMBO has been used to treat various contaminants, including dyes (Khan, Khan, & Shahjahan., ), arsenite (Cui et al, ; Zhang et al, ), phosphate (Du, Han, Li, & Li, ; Lu, Liu, et al, ), and metals (Li, Chen, Yu, & He, ; Lu, Huangfu, & Ma, ). However, there is little literature focusing on the adsorption of ammonium by FMBO.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of a novel Fe–Mn binary oxide‐modified lava adsorbent and its effect on ammonium removal from aqueous solutions

Zhao

et al. 2019

Water Environment Research

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Ammonium is strongly related to eutrophication and a key control of eutrophication in aquatic systems, especially in agricultural runoff. In this study, a novel Fe-Mn binary oxide-modified lava (FMML) granular adsorbent was synthesized for ammonium removal from aqueous solutions by co-precipitation method. The kinetic data were described by pseudo-second-order kinetic model well and intraparticle diffusion had effects on ammonium adsorption. For pH between 4.0 and 10.0, the adsorption efficiency was >80%, and its optimum was recorded at pH 7.0. FMML exhibited strong ammonium adsorption selectivity under the single presence of cations like Na + , K + , Ca 2+ , and Mg 2+ . The optimum adsorbent dose and particle size were 4 g/L and 3-5 mm, respectively, for an aqueous solution containing 10 mg/L of ammonium under normal conditions (298 K and pH 7.0). Furthermore, the adsorption process was endothermic, following both the Langmuir (R 2 > 0.98) and Freundlich (R 2 > 0.96) models. Compared with other adsorbents, the FMML can be prepared following a simpler protocol. After 30 times of adsorption-regeneration cycle, the FMML also had a relatively high ammonium adsorption capacity; hence, we see it as a prospective adsorbent for ammonium adsorption from aqueous solutions. © 2019 Water Environment Federation • Practitioner points• Fe-Mn binary oxide-modified lava with Fe/Mn ratio 3:1 was prepared using co-precipitation method. • Adsorption maximum of modified lava was 20.8 mg/g (298 K and pH 7.0). • Adsorption was sensitive to changes in adsorbent dose, particle size, and pH. • Inorganic cations decreased ammonium adsorption in order of Na + > K + > Ca 2+ > Mg 2+ . • Mechanisms for ammonium removal by FMML include diffusion, electrostatic attraction, oxidation, and complexation reaction.

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Fabrication of magnetic porous Fe–Mn binary oxide nanowires with superior capability for removal of As(III) from water

Cited by 63 publications

References 30 publications

Environmental implications and applications of engineered nanoscale magnetite and its hybrid nanocomposites: A review of recent literature

Environmental implications and applications of engineered nanoscale magnetite and its hybrid nanocomposites: A review of recent literature

Preparation and Characterization of Fe-Mn Binary Oxide/Mulberry Stem Biochar Composite Adsorbent and Adsorption of Cr(VI) from Aqueous Solution

Synthesis of a novel Fe–Mn binary oxide‐modified lava adsorbent and its effect on ammonium removal from aqueous solutions

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