Phytoremediation: Data on effects of titanium dioxide nanoparticles on phytoremediation of antimony polluted soil

Zand, Ali Daryabeigi; Heir, Azar Vaezi

doi:10.1016/j.dib.2020.105959

Cited by 13 publications

(6 citation statements)

References 7 publications

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“…When the test plant was exposed to 500 mg/kg of Sb, 672.8 mg Sb/kg were accumulated in the plant while when the initial concentration was 1000 mg/kg, the plant uptake was estimated 2054.8 mg Sb/kg [ 21 ]. Seedlings of S. bicolor in Sb-contaminated soil were treated with different levels of TiO 2 nanoparticles and the results showed that the bioconcentration factor was above one for each treatment, indicating that this plant also has phytoremediation potential [ 22 ]. To date, the mechanism of Sb accumulation in plants is not well understood and there is need for in-depth studies.…”

Section: Introductionmentioning

confidence: 99%

Capacity of Nerium oleander to Phytoremediate Sb-Contaminated Soils Assisted by Organic Acids and Oxygen Nanobubbles

Σερίδου

Monogyiou

Syranidou

et al. 2022

Plants

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Antimony (Sb) is considered to be a toxic metalloid of increasing prevalence in the environment. Although several phytoremediation studies have been conducted, research regarding the mechanisms of Sb accumulation and translocation within plants remains limited. In this study, soil from a shooting range was collected and spiked with an initial Sb(III) concentration of 50 mg/kg. A pot experiment was conducted to investigate whether Nerium oleander could accumulate Sb in the root and further translocate it to the aboveground tissue. Biostimulation of the soil was performed by the addition of organic acids (OAs), consisting of citric, ascorbic, and oxalic acid at low (7 mmol/kg) or high (70 mmol/kg) concentrations. The impact of irrigation with water supplemented with oxygen nanobubbles (O2NBs) was also investigated. The results demonstrate that there was a loss in plant growth in all treatments and the presence of OAs and O2NBs assisted the plant to maintain the water content at the level close to the control. The plant was not affected with regards to chlorophyll content in all treatments, while the antioxidant enzyme activity of guaiacol peroxidase (GPOD) in the roots was found to be significantly higher in the presence of Sb. Results revealed that Sb accumulation was greater in the treatment with the highest OAs concentration, with a bioconcentration factor greater than 1.0. The translocation of Sb for every treatment was very low, confirming that N. oleander plant cannot transfer Sb from the root to the shoots. A higher amount of Sb was accumulated in the plants that were irrigated with the O2NBs, although the translocation of Sb was not increased. The present study provides evidence for the phytoremediation capacity of N. oleander to bioaccumulate Sb when assisted by biostimulation with OAs.

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Section: Introductionmentioning

confidence: 99%

Capacity of Nerium oleander to Phytoremediate Sb-Contaminated Soils Assisted by Organic Acids and Oxygen Nanobubbles

Σερίδου

Monogyiou

Syranidou

et al. 2022

Plants

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“…The latter facilitates the formation of a hydrogel systemwhich assists with the retention of urea within CRUs and subsequent slower release of ureafollowing absorption of water by the urea–MPN matrix from soil. ,,− Moreover, the heated urea–MPN Fe , used as a model, showed a lower mechanical resistance than heated urea–MPN Ti and urea–MPN Zr , making it less stable in soil and exhibiting a faster urea release rate. It is noted that the metal–phenolic structure can undergo degradation in soil, resulting in the release of metals. ,, Zr and Ti are naturally occurring elements that are considered to have low toxicity and are commonly found in soils. , The concentration of Zr or Ti elements used in the urea–MPN 40% matrices is approximately 1 wt % (equivalent to ∼20 mg per kg of soil), which is lower than the concentration at which these elements are naturally present in soil. − …”

Section: Resultsmentioning

confidence: 99%

“…It is noted that the metal−phenolic structure can undergo degradation in soil, resulting in the release of metals. 46,76,77 Zr and Ti are naturally occurring elements that are considered to have low toxicity and are commonly found in soils. 78,79 The concentration of Zr or Ti elements used in the urea−MPN 40% matrices is approximately 1 wt % (equivalent to ∼20 mg per kg of soil), which is lower than the concentration at which these elements are naturally present in soil.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Solid-State Encapsulation of Urea via Mechanochemistry-Driven Engineering of Metal–Phenolic Networks

Mazaheri,

Zavabeti,

McQuillan

et al. 2023

Chem. Mater.

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Controlled-release fertilizers (CRFs) are sustainable alternatives as they can increase crop yield and minimize environmental contamination associated with conventional fertilizers. However, there remains a demand for the development of CRFs with high biocompatibility, and tunable morphologies and mechanical properties. Herein, a solvent-free mechanochemical method is developed for synthesizing urea-encapsulated metal–phenolic networks (urea–MPN matrices) as CRFs. The matrices exhibit tunable mechanical resistance, crystallinity, stiffness, and wettability properties via rearranging the internal structure of the MPNs and their subsequent interaction with the encapsulated urea crystals. Sample aging (7 days) leads to a higher degree of complexation of the MPNs, resulting in a material with increased elasticity and melting point relative to the as-synthesized sample. Thermal treatment (60 °C for 6 h) instigates structural reorganization of the urea crystals within the matrix, generating a more robust material with a 51-fold increase in Young’s modulus. As CRFs, the urea–MPN matrices can be tuned to prolong the release of urea for up to 9 days depending on the treatment applied. As the mechanochemical synthesis of MPNs facilitates the tuning of physiochemical properties and has greater practicability for inclusion within large-scale processing, it has potential implementation within a broad range of industries.

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“…They found that a significant amount of Sb was taken by plants grown under Sb stress. Similarly, sorghum plants grown under Sb also showed a significant increase in Sb accumulation in roots and the translocation of sorghum plants ( Müller et al., 2013 ; Zand and Heir, 2020 ; Zand et al., 2020 ). Translocation factor >1 is considered a good indicator of phytoremediation ( Antoniadis et al., 2021 ).…”

Section: Phytoremediation and Microbial Remediation Of Sb-contaminate...mentioning

confidence: 99%

“…(2020) studied the impact of titanium dioxide (TiO 2 ) nanoparticles and sorghum bicolor on the remediation of Sb-contaminated soil. They found that TiO 2 nanoparticles (0–1000 mg/kg) substantially improved biomass productivity and reduced Sb uptake and translocation ( Zand and Heir, 2020 ). In another study, Zand et al.…”

Section: Use Of Plant Additives To Reduce Sb Toxicitymentioning

confidence: 99%

Toxic effects of antimony in plants: Reasons and remediation possibilities—A review and future prospects

Tang

Meng²,

Xiang³

et al. 2022

Front. Plant Sci.

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Antimony (Sb) is a dangerous heavy metal (HM) that poses a serious threat to the health of plants, animals, and humans. Leaching from mining wastes and weathering of sulfide ores are the major ways of introducing Sb into our soils and aquatic environments. Crops grown on Sb-contaminated soils are a major reason of Sb entry into humans by eating Sb-contaminated foods. Sb toxicity in plants reduces seed germination and root and shoot growth, and causes substantial reduction in plant growth and final productions. Moreover, Sb also induces chlorosis, causes damage to the photosynthetic apparatus, reduces membrane stability and nutrient uptake, and increases oxidative stress by increasing reactive oxygen species, thereby reducing plant growth and development. The threats induced by Sb toxicity and Sb concentration in soils are increasing day by day, which would be a major risk to crop production and human health. Additionally, the lack of appropriate measures regarding the remediation of Sb-contaminated soils will further intensify the current situation. Therefore, future research must be aimed at devising appropriate measures to mitigate the hazardous impacts of Sb toxicity on plants, humans, and the environment and to prevent the entry of Sb into our ecosystem. We have also described the various strategies to remediate Sb-contaminated soils to prevent its entry into the human food chain. Additionally, we also identified the various research gaps that must be addressed in future research programs. We believe that this review will help readers to develop the appropriate measures to minimize the toxic effects of Sb and its entry into our ecosystem. This will ensure the proper food production on Sb-contaminated soils.

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Phytoremediation: Data on effects of titanium dioxide nanoparticles on phytoremediation of antimony polluted soil

Cited by 13 publications

References 7 publications

Capacity of Nerium oleander to Phytoremediate Sb-Contaminated Soils Assisted by Organic Acids and Oxygen Nanobubbles

Capacity of Nerium oleander to Phytoremediate Sb-Contaminated Soils Assisted by Organic Acids and Oxygen Nanobubbles

Solid-State Encapsulation of Urea via Mechanochemistry-Driven Engineering of Metal–Phenolic Networks

Toxic effects of antimony in plants: Reasons and remediation possibilities—A review and future prospects

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