Influence of Nano-Hydroxyapatite on the Metal Bioavailability, Plant Metal Accumulation and Root Exudates of Ryegrass for Phytoremediation in Lead-Polluted Soil

Ding, Ling; Li, Jianbing; Liu, Wei; Zuo, Qingqing; Liang, Shu-Xuan

doi:10.3390/ijerph14050532

Cited by 56 publications

(24 citation statements)

References 32 publications

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“…The results from the aforementioned research provided beneficial information about the influence of nano-hydroxyapatite on the removal of lead, which plays a significant role in phytoremediation. The authors of [100] illustrated that nano-hydroxyapatite can effectively decrease the mobility and bioavailability of lead. The incorporation of nano-hydroxyapatite significantly decreased the reducible and exchangeable segments of lead in soil and converted these segments into an oxidizable and residual lead, thereby restricting its mobility as well as its bio-accumulating ability.…”

Section: Nano-hydroxyapatite (Nhap) As Nano-fertilizersmentioning

confidence: 99%

Recent Developments in the Application of Nanomaterials in Agroecosystems

Saleem

Zaidi

2020

Nanomaterials

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Nanotechnology implies the scientific research, development, and manufacture, along with processing, of materials and structures on a nano scale. Presently, the contamination of metalloids and metals in the soil has gained substantial attention. The consolidation of nanomaterials and plants in ecological management has received considerable research attention because certain nanomaterials could enhance plant seed germination and entire plant growth. Conversely, when the nanomaterial concentration is not properly controlled, toxicity will definitely develop. This paper discusses the role of nanomaterials as: (1) nano-pesticides (for improving the plant resistance against the biotic stress); and (2) nano-fertilizers (for promoting the plant growth by providing vital nutrients). This review analyzes the potential usages of nanomaterials in agroecosystem. In addition, the adverse effects of nanomaterials on soil organisms are discussed. We mostly examine the beneficial effects of nanomaterials such as nano-zerovalent iron, iron oxide, titanium dioxide, nano-hydroxyapatite, carbon nanotubes, and silver- and copper-based nanomaterials. Some nanomaterials can affect the growth, survival, and reproduction of soil organisms. A change from testing/using nanomaterials in plants for developing nanomaterials depending on agricultural requirements would be an important phase in the utilization of nanomaterials in sustainable agriculture. Conversely, the transport as well as ecological toxicity of nanomaterials should be seriously examined for guaranteeing its benign usage in agriculture.

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Section: Nano-hydroxyapatite (Nhap) As Nano-fertilizersmentioning

confidence: 99%

Recent Developments in the Application of Nanomaterials in Agroecosystems

Saleem

Zaidi

2020

Nanomaterials

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“…HAP has a unique hydroxyl group that enhances soil pH, diminishing the solubility of heavy metals, such as Cd and Pb, by forming chelate or precipitate substances to change heavy metal bioavailability and reduce phytotoxicity [ 17 , 18 , 19 , 20 ]. HAP can not only directly immobilize heavy metals, leading to reduced heavy metal toxicity, but also improve plant growth and biomass, and reduce heavy metal content in plant tissues [ 21 , 22 ]. Meanwhile, HAP can be considered an inorganic P fertilizer, providing P nutrition for plants.…”

Section: Introductionmentioning

confidence: 99%

Effects of Soil Amendments on Heavy Metal Immobilization and Accumulation by Maize Grown in a Multiple-Metal-Contaminated Soil and Their Potential for Safe Crop Production

Wang

Zhang

Cheng

et al. 2020

Toxics

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Soil amendments have been proposed for immobilizing metallic contaminants, thus reducing their uptake by plants. For the safe production of crops in contaminated soil, there is a need to select suitable amendments that can mitigate heavy metal uptake and enhance crop yield. The present experiment compared the effects of three amendments, hydroxyapatite (HAP), organic manure (OM), and biochar (BC), on plant growth and heavy metal accumulation by maize in an acidic soil contaminated with Cd, Pb, and Zn, and their potential for safe crop production. Toxicity characteristic leaching procedure (TCLP) tests, energy dispersive X-ray spectroscopy (EDS) analysis, and X-ray diffraction (XRD) analysis were used to evaluate the effectiveness and mechanisms of heavy metal immobilization by the amendments. The results showed that shoot and root biomass was significantly increased by HAP and 1% OM, with an order of 1% HAP > 0.1% HAP > 1% OM, but not changed by 0.1% OM and BC (0.1% and 1%). HAP significantly decreased Cd, Pb, and Zn concentrations in both shoots and roots, and the effects were more pronounced at the higher doses. OM decreased the shoot Cd and Pb concentrations and root Zn concentrations, but only 1% OM decreased the shoot Zn and root Pb concentrations. BC decreased the shoot Cd and Pb concentrations, but decreased the shoot Zn and root Pb concentrations only at 1%. HAP decreased the translocation factors (TFs) of Cd, Pb, and Zn (except at the 0.1% dose). OM and BC decreased the TFs of Cd and Zn, respectively, at the 1% dose but showed no significant effects in other cases. Overall, plant P, K, Fe, and Cu nutrition was improved by HAP and 1% OM, but not by 0.1 OM and BC. Soil pH was significantly increased by HAP, 1% OM, and 1% BC, following an order of 1% HAP > 1% OM > 0.1% HAP > 1% BC. The TCLP levels for Cd, Pb, and Zn were significantly reduced by HAP, which can be partly attributed to its liming effects and the formation of sparingly soluble Cd-, Pb-, and Zn-P-containing minerals in the HAP-amended soils. To some extent, all the amendments positively influenced plant and soil traits, but HAP was the optimal one for stabilizing heavy metals, reducing heavy metal uptake, and promoting plant growth in the contaminated soil, suggesting its potential for safe crop production.

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“…Application of NMs improved yield growth and components of peanut as stated in the presented data (Table 5). This finding may be mainly due to the improved physical and chemical properties of soil and availability of different nutrients, particularly phosphorus (Amira et al, 2016;Ling et al, 2017;Xing et al, 2016).…”

Section: Discussionmentioning

confidence: 99%

“…This is due to high adsorption capacity, high stability, and low water solubility (Doaa et al, 2016;Mobasherpour et al, 2011;Xenidis et al, 2010;Zhang et al, 2010). The application of HapNP decreased exchangeable and reducible fractions of Pb in the soil, and converted them into oxidizable, reducing their susceptibility to availability (Ling et al, 2017;Seleiman & Kheir, 2018). Zhang et al (2019) found that micro-hydroxyapatite and nanohydroxyapatite were used to reduce available HM, increase the diversity of the fungal community and increase soil pH in contaminated soil.…”

mentioning

confidence: 99%

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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Influence of Nano-Hydroxyapatite on the Metal Bioavailability, Plant Metal Accumulation and Root Exudates of Ryegrass for Phytoremediation in Lead-Polluted Soil

Cited by 56 publications

References 32 publications

Recent Developments in the Application of Nanomaterials in Agroecosystems

Recent Developments in the Application of Nanomaterials in Agroecosystems

Effects of Soil Amendments on Heavy Metal Immobilization and Accumulation by Maize Grown in a Multiple-Metal-Contaminated Soil and Their Potential for Safe Crop Production

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

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