Removal of some heavy metals and fungicides from aqueous solutions using nano-hydroxyapatite, nano-bentonite and nanocomposite

El-Nagar, Doaa Ahmed; Massoud, Sanaa A.; Ismail, Sameh H.

doi:10.1016/j.arabjc.2020.09.005

Cited by 42 publications

(15 citation statements)

References 25 publications

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“…The same letters indicate no significant differences at 0.05 levels at each column. T1 (bentonite, 1 t ha À1 ), T2 (hydroxyapatite, 1 t ha À1 ), T3 (HapNP, 50 kg ha À1 ), T4 (HapNP, 100 kg ha À1 ), T5 (n-Be, 50 kg ha À1 ), T6 (n-Be, 100 kg ha À1 ), T7 (n-Be/HapNC, 50 kg ha À1 ), and T8 (n-Be/HapNC, 100 kg ha À1 ) Abbreviations: BCR, bio-concentration ratio; TC, transfer coefficient be due to characteristics of NMs as (high sorption properties, functional groups, pore size, and high surface area) (Doaa et al, 2020;Jiang et al, 2012) and convert of HM in the soil from mobile fractions to residual fractions (Seleiman & Kheir, 2018).…”

Section: Discussionmentioning

confidence: 99%

“…Then, the mixture was subjected to a sonication process (70% amplitude, 50 Hz at room temperature) for 2 hr until white precipitation is formed. The collected particles were dried at 50 C for 24 hr (Doaa et al, 2020).…”

Section: Hydroxyapatite Nanoparticles (Hapnps)mentioning

confidence: 99%

“…The mixture was subjected to a straight sonication process by using an ultrasonic prob (Hielscher, up to 400 s) at conditions: plus time 10 s, rest time 1 s, the temperature did not exceed 60 C, total period 2 hr, 70% amplitude, and 0.5 cycles. The collected material was dried as described above (Doaa et al, 2020).…”

Section: Bentonite Nano-sheet Structure (N-be)mentioning

confidence: 99%

“…The mixture was subjected to sonication at the following conditions: plus time 30 s, rest time 2 s, the temperature did not exceed 60 C for 4 hr, followed by 80% amplitude and 0.8 cycles for 2 hr. The prepared NCs were centrifuged at 500 rpm for 20 min and dried as described above (Doaa et al, 2020).…”

Section: Bentonite-hydroxyapatite Nanocomposite (N-be/hapnc)mentioning

confidence: 99%

“…In addition, magnetic clays and Be were examined to adsorb Cd and Ni in aqueous solutions (Galamboš et al, 2009). Nano-bentonite is used as an adsorbent to remove HM such as Cd, Hg, Ni, and Pb (Doaa et al, 2020;Hend et al, 2016;Makmur & Profita, 2018).…”

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confidence: 99%

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Remediation of heavy metals in contaminated soil by using nano‐bentonite, nano‐hydroxyapatite, and nano‐composite

El-Nagar

Abdel-Halim

2021

Land Degrad Dev

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Soil and water contaminants have an impact on ecosystems, agricultural productivity, groundwater, and human health. Therefore, it is necessary to develop new technologies to treat pollution, one of these techniques is the use of nanomaterials (NMs).This study aimed to evaluate the efficiency of bentonite nano-sheet structure (n-Be), hydroxyapatite nanoparticles (HapNP), and their nano-composite (n-Be/HapNC) on immobilizing nickel (Ni), copper (Cu), and lead (Pb) in peanut-cultivated soil. The prepared materials were characterized by X-ray powder diffraction, atomic force microscopy, surface area, and Fourier transform infrared. Eight levels of material were used T1 (bentonite, 1 t ha À1 ), T2 (hydroxyapatite, 1 t ha À1 ), T3 (HapNPs, 50 kg ha À1 ), T4 (HapNPs, 100 kg ha À1 ), T5 (n-Be, 50 kg ha À1 ), T6 (n-Be, 100 kg ha À1 ), T7 (n-Be/ HapNC, 50 kg ha À1 ), and T8 (n-Be/HapNC, 100 kg ha À1 ). The results indicated that the available Ni, Cu, and Pb showed a significant decline in the treated soil, in comparison to untreated. Levels of Ni exhibited a decrease in the following order: T8 < T6 < T7 < T5. Similar patterns were observed for Cu and Pb levels, where treatment T8 exhibited the greatest decline compared to the control. Uptake of heavy metals (HM) by peanut components (leaves, stems, and seeds) showed significant declines for the treatments, compared to the control. Treatment (n-Be/HapNC, 100 kg ha À1 ) showed the lowest transfer coefficient of Ni (0.53) and Cu (0.048) compared to control (0.71 and 0.097), respectively. Treatments of NMs significantly exhibited increases in fresh weight, pods, and seeds, compared to the control. From all findings, it is obtained that nano-forms of such materials can immobilize HM in contaminated soil, enhance its characteristics, decrease HM-uptake by plants, and are considered good immobilizers for HM in soil. These materials play a role in treating contaminated soil and thus making it suitable for agriculture.

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Section: Discussionmentioning

confidence: 99%

Section: Hydroxyapatite Nanoparticles (Hapnps)mentioning

confidence: 99%

Section: Bentonite Nano-sheet Structure (N-be)mentioning

confidence: 99%

Section: Bentonite-hydroxyapatite Nanocomposite (N-be/hapnc)mentioning

confidence: 99%

mentioning

confidence: 99%

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Remediation of heavy metals in contaminated soil by using nano‐bentonite, nano‐hydroxyapatite, and nano‐composite

El-Nagar

Abdel-Halim

2021

Land Degrad Dev

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Nanotechnology for Water Treatment: Recent Advancement in the Remediation of Organic and Inorganic Compounds

Sivodia¹,

Sinha²

2022

Nanotechnology for Environmental Remediation

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Nanotechnological approaches as a promising way for heavy metal mitigation in an aqueous system

Muthukumaran¹,

Palanisamy

Shyamalagowri³

et al. 2021

J Basic Microbiol

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The ever-rising environmental problems because of heavy metals emerging from anthropogenic activities pose an impending threat to all biota globally. Considering their persistence and possibility in biomagnification, they are prominent among pollutants. There has been an apparent shift of research interest in advancing costeffective and competent technologies to mitigate environmental contaminants, specifically heavy metals. In the recent two decades, tailored nanomaterials (NMs), nanoparticles, and NM-based adsorbents have been emerging for removing heavy metal pollution on a sustainable scale, especially the green synthesis of these nanoproducts effective and nonhazardous means. Hence, this review explores the various avenues in nanotechnology, an attempt to gauge nanotechnological approaches to mitigate heavy metals in the aqueous system, especially emphasizing the recent trends and advancements. Inputs on remediating heavy metal in sustainable and environmentally benign aspects recommended future directions to compensate for the voids in this domain have been addressed.

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Removal of some heavy metals and fungicides from aqueous solutions using nano-hydroxyapatite, nano-bentonite and nanocomposite

Cited by 42 publications

References 25 publications

Remediation of heavy metals in contaminated soil by using nano‐bentonite, nano‐hydroxyapatite, and nano‐composite

Remediation of heavy metals in contaminated soil by using nano‐bentonite, nano‐hydroxyapatite, and nano‐composite

Nanotechnology for Water Treatment: Recent Advancement in the Remediation of Organic and Inorganic Compounds

Nanotechnological approaches as a promising way for heavy metal mitigation in an aqueous system

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