Synthesis of γ-alumina nano powder from Nepheline syenite

Chitan, Mehran; Hosseini, Seyed Abolfazl; Salari, Dariush; Niaei, Aligholi; Mehrizadeh, Habib

doi:10.1007/s11814-016-0246-8

“…The adsorption performance of alumina nanoparticles was investigated by Bhatnagar et al 2 ; moreover, the conducted study showed that these nanoparticles can be an efficient adsorbent for nitrate removal from water. Chitan et al 47 carried out a study that concluded that synthesized nano alumina from nepheline syenite could have higher adsorption capacity for dyes compared to industrial or Merck alumina. Another metal oxide (iron oxide) can result in a compatible, non-toxic and eco-friendly, recyclable, and efficient adsorbent with fast reactivity 48 .…”

Section: Introductionmentioning

confidence: 99%

Nitrate removal study of synthesized nano γ-alumina and magnetite-alumina nanocomposite adsorbents prepared by various methods and precursors

Khatamian,

Derakhshan,

Nami

et al. 2024

Sci Rep

6

0

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The challenges in water treatment include the need for efficient removal of pollutants like nitrate, which poses significant environmental and health risks. Alumina's significance lies in its proven effectiveness as an adsorbent for nitrate removal due to its high surface area and affinity for nitrate ions. This study delves into the synthesis of differen nano-sized γ-alumina (γA1-5) employing diverse precursors and methods, including nepheline syenite, lime, aluminum hydroxide, precipitation, and hydrothermal processes at varying reaction times. Simultaneously, magnetite (Fe3O4) nanoparticles and magnetite/γ-alumina nanocomposites (Fn/γA5) were synthesized using the co-precipitation method with varying weight ratios (n). Our primary objective was to optimize γ-alumina synthesis by comparing multiple methods, shedding light on the influence of different precursors and sources. Hence, a comprehensive adsorption study was conducted to assess the materials’ efficacy in nitrate removal. This study fills gaps in the literature, providing a novel perspective through the simultaneous assessment of magnetite/alumina nanocomposites and pure alumina performance. Structural and morphological properties were studied employing XRD, FT-IR, FESEM, EDX, XRD, and VSM techniques. The conducted experiments for γA5, F5/γA5, and F10/γA5 nanocomposites showcased the optimum pH of 5 and contact time of 45 min for all samples. The influence of nitrate’s initial concentration on the removal percentage was investigated with initial concentrations of 10 ppm, 50 ppm, and 100 ppm. γA5, F5/γA5 and F10/γA5 nanocomposites had 17.3%, 55%, and 70% at 10 ppm, 18%, 55.16%, and 74% at 50 ppm, and 8.6%, 53.1%, and 63%, respectively. The results highlighted that F10/γA5 can be used as a remarkable adsorbent for wastewater treatment purposes.

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“…The adsorption performance of alumina nanoparticles was investigated by Bhatnagar et al 2 ; moreover, the conducted study showed that these nanoparticles can be an e cient adsorbent for nitrate removal from water. Chitan et al 42 carried out a study that concluded that synthesized nano alumina from nepheline syenite could have higher adsorption capacity for dyes compared to industrial or Merck alumina. Another metal oxide (iron oxide) can result in a compatible, non-toxic and eco-friendly, recyclable, and e cient adsorbent with fast reactivity 43 .…”

Section: Introductionmentioning

confidence: 99%

Synthesis, characterization, and nitrate removal study of nano γ-alumina and magnetite-alumina nanocomposite adsorbents prepared by various methods and precursors

Khatamian,

Derakhshan,

Nami

et al. 2024

Preprint

0

View full text Add to dashboard Cite

This study delves into the synthesis of differen nano-sized γ-alumina (γA1-5) employing diverse precursors and methods, including nepheline syenite, lime, aluminum hydroxide, precipitation, and hydrothermal processes at varying reaction times. Simultaneously, magnetite (Fe3O4) nanoparticles and magnetite/γ-alumina nanocomposites (Fn/γA5) were synthesized using the co-precipitation method with varying weight ratios (n). Our primary objective was to optimize γ-alumina synthesis by comparing multiple methods, shedding light on the influence of different precursors and sources. Hence, a comprehensive adsorption study was conducted to assess the materials’ efficacy in nitrate removal. This study fills gaps in the literature, providing a novel perspective through the simultaneous assessment of magnetite/alumina nanocomposites and pure alumina performance. Structural and morphological properties were studied employing XRD, FT-IR, FESEM, EDX, XRD, and VSM techniques. The conducted experiments for γA5, F5/γA5, and F10/γA5 nanocomposites showcased the optimum pH of 5 and contact time of 45 min for all samples. The influence of nitrate’s initial concentration on the removal percentage was investigated with initial concentrations of 10 ppm, 50 ppm, and 100 ppm. γA5, F5/γA5 and F10/γA5 nanocomposites had 17.3%, 55%, and 70% at 10 ppm, 18%, 55.16%, and 74% at 50 ppm, and 8.6%, 53.1%, and 63%, respectively. The results highlighted that F10/γA5 can be used as a remarkable adsorbent for wastewater treatment purposes.

show abstract

“…The adsorption performance of alumina nanoparticles was investigated by Bhatnagar et al 2 ; moreover, the conducted study showed that these nanoparticles can be an e cient adsorbent for nitrate removal from water. Chitan et al 47 carried out a study that concluded that synthesized nano alumina from nepheline syenite could have higher adsorption capacity for dyes compared to industrial or Merck alumina. Another metal oxide (iron oxide) can result in a compatible, non-toxic and eco-friendly, recyclable, and e cient adsorbent with fast reactivity 48 .…”

Section: Introductionmentioning

confidence: 99%

Investigation into the elimination of nitrates using nano γ-alumina and magnetite-alumina nanocomposite adsorbents synthesized through different methods and precursor materials

Khatamian,

Derakhshan,

Nami

et al. 2024

Preprint

0

View full text Add to dashboard Cite

The challenges in water treatment include the need for efficient removal of pollutants like nitrate, which poses significant environmental and health risks. Alumina's significance lies in its proven effectiveness as an adsorbent for nitrate removal due to its high surface area and affinity for nitrate ions. This study delves into the synthesis of differen nano-sized γ-alumina (γA1-5) employing diverse precursors and methods, including nepheline syenite, lime, aluminum hydroxide, precipitation, and hydrothermal processes at varying reaction times. Simultaneously, magnetite (Fe3O4) nanoparticles and magnetite/γ-alumina nanocomposites (Fn/γA5) were synthesized using the co-precipitation method with varying weight ratios (n). Our primary objective was to optimize γ-alumina synthesis by comparing multiple methods, shedding light on the influence of different precursors and sources. Hence, a comprehensive adsorption study was conducted to assess the materials’ efficacy in nitrate removal. This study fills gaps in the literature, providing a novel perspective through the simultaneous assessment of magnetite/alumina nanocomposites and pure alumina performance. Structural and morphological properties were studied employing XRD, FT-IR, FESEM, EDX, XRD, and VSM techniques. The conducted experiments for γA5, F5/γA5, and F10/γA5 nanocomposites showcased the optimum pH of 5 and contact time of 45 min for all samples. The influence of nitrate’s initial concentration on the removal percentage was investigated with initial concentrations of 10 ppm, 50 ppm, and 100 ppm. γA5, F5/γA5 and F10/γA5 nanocomposites had 17.3%, 55%, and 70% at 10 ppm, 18%, 55.16%, and 74% at 50 ppm, and 8.6%, 53.1%, and 63%, respectively. The results highlighted that F10/γA5 can be used as a remarkable adsorbent for wastewater treatment purposes.

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Synthesis of γ-alumina nano powder from Nepheline syenite

Cited by 8 publications

References 26 publications

Nitrate removal study of synthesized nano γ-alumina and magnetite-alumina nanocomposite adsorbents prepared by various methods and precursors

Nitrate removal study of synthesized nano γ-alumina and magnetite-alumina nanocomposite adsorbents prepared by various methods and precursors

Synthesis, characterization, and nitrate removal study of nano γ-alumina and magnetite-alumina nanocomposite adsorbents prepared by various methods and precursors

Investigation into the elimination of nitrates using nano γ-alumina and magnetite-alumina nanocomposite adsorbents synthesized through different methods and precursor materials

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