A novel method for synthesis of nano-γ-Al2O3: study of adsorption behavior of chromium, nickel, cadmium and lead ions

Poursani, Afshin Shokati; Nilchi, A.; Hassani, Amir Hessam; Shariat, M.H.; Nouri, J.

doi:10.1007/s13762-014-0740-7

Cited by 58 publications

(10 citation statements)

References 48 publications

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“…In addition to the above heavy metals, Al 2 O 3 nanomaterials have also been reported to remove Hg (II), As (III), Cu (II), Ni (II), Cr (VI), etc. and have exhibited decent removal capabilities towards these elements [196,197,198,199].…”

Section: Nanomaterials For Removing Heavy Metalsmentioning

confidence: 99%

Nanomaterials for the Removal of Heavy Metals from Wastewater

et al. 2019

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Removal of contaminants in wastewater, such as heavy metals, has become a severe problem in the world. Numerous technologies have been developed to deal with this problem. As an emerging technology, nanotechnology has been gaining increasing interest and many nanomaterials have been developed to remove heavy metals from polluted water, due to their excellent features resulting from the nanometer effect. In this work, novel nanomaterials, including carbon-based nanomaterials, zero-valent metal, metal-oxide based nanomaterials, and nanocomposites, and their applications for the removal of heavy metal ions from wastewater were systematically reviewed. Their efficiency, limitations, and advantages were compared and discussed. Furthermore, the promising perspective of nanomaterials in environmental applications was also discussed and potential directions for future work were suggested.

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Section: Nanomaterials For Removing Heavy Metalsmentioning

confidence: 99%

Nanomaterials for the Removal of Heavy Metals from Wastewater

et al. 2019

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“…46 Mahapatra et al(2013) prepared iron oxide-alumina mixed nanocomposite fiber using electrospinning method and its sorption nature was studied towards Cu 2+ , Pb 2+ , Ni 2+ and Hg 2+ and the % removal was found to be in order: Hg 2+ >Ni 2+ > Pb 2+ >Cu 2+ with adsorption capacities 63.69 mg/g, 32.36 mg/g, 23.75 mg/g and 4.98 mg/g respectively. 47 Shokati Poursani et al (2015) prepared nano-γAl2O3 by precipitating hydrated Aluminum hydroxide by mixing 1,2-epoxybutane with an alcoholic solution of AlCl3.6H2O and then diluting with water and subsequently, heating the precipitate to high elevated temperatures and then grinded 20 . The prepared nano-γ-Al2O3 was investigated for its sorption nature towards the cations: Cr 3+ , Cd 2+ , Ni 2+ and Pb 2+ and NANO ALUMINUM OXIDES AS ADSORBENTS K. Ravindhranath and M.Ramamoorty found that the sorption followed the order: Cr 3+ > Cd 2+ >, Ni 2+ > Pb 2+ with the sorption capacities respectively 13.3 mg/g, 6 mg/g, 1.1 mg/g and 0.33 mg/g (at temp 25 o C).…”

Section: Removal Of Metal Ionmentioning

confidence: 99%

Nano Aluminum Oxides as Adsorbents in Water Remediation Methods: A Review

2017

RJC

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Nanoparticles of Al2O3, are proving to be versatile adsorbents in the purification of water/waste water in view of their large surface area, high surface energies and potentials and availability of surface functional groups for binding over the pollutants. The conventional physical and/or chemical methods of syntheses are tedious, costly, involve toxic chemicals and not eco-friendly. Hence, using the extracts of plants as reducing, capping or stabilizing agents, the researchers are synthesizing the nanoparticles and these bio-methods are producing nano-particles that are more bio-compatible and endowed with enhanced sorption nature than the nanoparticles conventionally synthesized. Moreover, these methods are simple and depend upon the naturally available non-toxic compounds in the rich flora available in our surroundings and thereby domesticating the complicated syntheses. In the present review, the investigations pertaining to the synthesis of Aluminum oxide nanoparticles with more emphasis on phyto-(green) methods, and their applications to the removal of toxic ions from water, are emphatically reviewed. The less/not trodden potential areas of research are identified in the context of using nanoparticles of Aluminum oxides as adsorbents for developing water remediation methods.

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“…One of the reasons for the broader application of nanoadsorbent is the greater surface area to volume ratio, the reactivity, and the ability to absorb higher contamination relative to the macro and micro scales of the same substance. The lignin-containing cellulose nanofibrils (LCNFs) consists of lignin and hemicellulose, one of the thinnest and newest fibers in the world with attractive features such as renewability, non-toxicity, reasonable cost, and high specific resistance (8,9).…”

Section: Introductionmentioning

confidence: 99%

Removal of Lead (Pb) From Aqueous Solutions Using Lignocellulose Nanofiber

Rastegar

Reaei

Yousefi

2021

Avicenna J Environ Health Eng

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The objective of this study was to investigate the removal of lead from aqueous solutions using Lignin-containing cellulose (LCNF) as natural adsorbent and advanced material in the batch system. The water sources contaminated with heavy metals, such as lead, have now become one of the major issues in the world due to non-degradability and huge adverse effects on the health of living organisms. X-ray diffraction (XRD), Fourier transform-infrared spectroscopy (FT-IR), and transmission electron microscopy (TEM) were used to analyze the physical, chemical, and structural properties of LCNFs. The parameters measured in the batch system included pH (4-9), adsorbent dosage (0.1-1 g), contact time (15-120 minutes), initial lead concentration (10-50 mg/L), and temperature (15-40°C). The data for each treatment were statistically studied by analysis of variance (ANOVA) and Duncan's test. Based on the results, the optimal parameters were determined to be initial lead concentration of 10 mg/L, pH of 6, and adsorbent dosage of 0.3 g/L. The highest lead removal efficiency was achieved at 25°C. The system reached equilibrium at 60 minutes, and then there was little change in lead removal. The results of this study showed that LCNF, by removing more than 99% of lead from aqueous solutions, is a suitable adsorbent for removing lead from aqueous solutions.

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A novel method for synthesis of nano-γ-Al2O3: study of adsorption behavior of chromium, nickel, cadmium and lead ions

Cited by 58 publications

References 48 publications

Nanomaterials for the Removal of Heavy Metals from Wastewater

Nanomaterials for the Removal of Heavy Metals from Wastewater

Nano Aluminum Oxides as Adsorbents in Water Remediation Methods: A Review

Removal of Lead (Pb) From Aqueous Solutions Using Lignocellulose Nanofiber

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