A field experiment on stabilization of Cd in contaminated soils by surface-modified nano-silica (SMNS) and its phyto-availability to corn and wheat

Wang, Yangyang; Liu, Yidan; Zhan, Wenhao; Niu, Liumin; Zou, Xueyan; Zhang, Chaosheng; Xue-yu, Ruan

doi:10.1007/s11368-019-02416-1

Cited by 23 publications

(4 citation statements)

References 33 publications

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“…Silica nanoparticles also have been applied for the environmental remediation from pollutants like to reduce the radioactive compounds and heavy metals into soil and water, removing of nonmetals,metalsand radioactive elements as well as water purification (Jeelani et al 2020). In an incubation Lab experiment, surface-modified nano-silica was used tostabilize Cd in polluted soils, and the maximum stabilization efficiency of Cd reached 91.21% under control both of moisture of soil and particle size (Wang et al 2020a). A field experiment was carried out using surfacemodified nano-silicato stabilize a Cd polluted soil under field conditions, which at applied rate of 1% reduced the Cd contents in maize and wheatgrains 42.87% and 47.95%, respectively (Wang et al 2020a).…”

Section: Nano-silicamentioning

confidence: 99%

“…In an incubation Lab experiment, surface-modified nano-silica was used tostabilize Cd in polluted soils, and the maximum stabilization efficiency of Cd reached 91.21% under control both of moisture of soil and particle size (Wang et al 2020a). A field experiment was carried out using surfacemodified nano-silicato stabilize a Cd polluted soil under field conditions, which at applied rate of 1% reduced the Cd contents in maize and wheatgrains 42.87% and 47.95%, respectively (Wang et al 2020a). Nano-silica could be used as a new type of silicon fertilizer and as a carrier material, which has good environmental compatibility with soil.…”

Section: Nano-silicamentioning

confidence: 99%

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Agro-Pollutants and their Nano-Remediation from Soil and Water: A Mini-Review

El-Ramady

El-Henawy

Amer

et al. 2020

EBSS

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T HE human activities include the agricultural, industrial and other activities. The agricultural sector is considered the main source for our life's supplies. However, the agricultural activities or practices might result many pollutants such as applied mineral fertilizers, pesticides, effluents from domestic and industrial sewages and vehicular emissions. Therefore, a remediation to remove or decrease the pollutants in soil and water is needed for the environment protection. This remediation has several classic strategies several years ago, but a promising and new approaches have been established particularly nano-remediation. This nano-remediation depends on the applied nanomaterials in removing pollutants from soils and water through nano-bioremediation and nano-phytoremediation. The most important nanomaterials that have potential in removing pollutants from contaminated soils and water are nano-silica, nano-zero-valent of iron, nano-sized iron sulfide particles, nano-ZnO and others. However, many challenges or open questions are still needing a justification because using nanomaterials in higher concentrations are toxic to plants and agro-environment. Are these nanomaterials stable under environmental conditions or will be converted into toxic ones or still need to be identified for sustainable nano-remediation? Is there any possibility to enter the nanomaterials or other toxic compounds the food chain through these plants? Therefore, a lot of further research is needed concerning the nano-remediation in removal the agro-pollutants.

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Section: Nano-silicamentioning

confidence: 99%

Section: Nano-silicamentioning

confidence: 99%

Agro-Pollutants and their Nano-Remediation from Soil and Water: A Mini-Review

El-Ramady

El-Henawy

Amer

et al. 2020

EBSS

View full text Add to dashboard Cite

show abstract

“…However, nano-silica has the characteristics of a large specific surface area, low toxicity, good optical transparency, excellent biological compatibility, and easy functional modification. It not only shows the small size effect, macro quantum effect and surface effect of general nano-materials, it also has unique physical and chemical properties such as photoelectric properties, a high magnetoresistance phenomenon, and nonlinear resistance [10,11]. It was widely used in the fields of material adsorption and separation, electronic packaging materials, nano-biomedicine, antimicrobial materials, catalysis, and drug carriers [12,13], which made use of the chlorosilane residue liquid to prepare nano-silica showing a high value and unique advantages in terms of resource utilization and environmental protection.…”

Section: Introductionmentioning

confidence: 99%

Recovery of Chlorosilane Residual Liquid to Prepare Nano-Silica via the Reverse Micro-Emulsion Process

Cai,

Li,

Wei

et al. 2023

Materials

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In this paper, nano-silica particles were prepared from chlorosilane residue liquid using an inverse micro-emulsions system formed from octylphenyl polyoxyethylene ether (TX-100)/n-hexanol/cyclohexane/ammonia. The influence of different reaction conditions on the morphology, particle size, and dispersion of nano-silica particles was investigated via single-factor analysis. When the concentration of chlorosilane residue liquid (0.08 mol/L), hydrophile-lipophilic-balance (HLB) values (10.50), and the concentration of ammonia (0.58 mol/L) were under suitable conditions, the nano-silica particles had a more uniform morphology, smaller particle size, and better dispersion, while the size of the nano-silica particles gradually increased with the increase in the molar ratio of water to surfactant (ω). The prepared nano-silica was characterized through XRD, FT-IR, N2 adsorption/desorption experiments, and TG-DSC analysis. The results showed that the prepared nano-silica was amorphous mesoporous silica, and that the BET specific surface area was 850.5 m2/g. It also had good thermal stability. When the temperature exceeded 1140 °C, the nano-silica underwent a phase transition from an amorphous form to crystalline. This method not only promoted the sustainable development of the polysilicon industry, it also provided new ideas for the protection of the ecological environment, the preparation of environmental functional materials, and the recycling of resources and energy.

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“…Most adsorption materials are powdery solids, which are easy to disperse in wastewater and thus very difficult to recycle. The high cost and difficult recovery of nano adsorbent limit its wide application [11,12]. Moreover, saturated adsorption materials contain a large amount of pollutants.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Multi-Group Magnetic Biochar (MMBC) and Its Mechanism for Adsorption of Pb(II) in Aqueous Solution

Wan¹,

Wang²,

Yuan³

et al. 2022

Pol. J. Environ. Stud.

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Multi-group magnetic biochar (MMBC) was prepared by encapsulating rice husk biochar (BC) in magnetic nanoiron by the liquid-phase reduction-coprecipitation method. MMBC was characterized, and its adsorption of Pb(II) was investigated. Single-factor influence experiments showed that the efficiency for removal of Pb(II) by MMBC reached 90.85% with a pH of 5.0, an adsorbent addition amount of 1 g•L -1 and a contact time of 2 h. Kinetic analyses showed that pseudo-second-order kinetics express the adsorption process of Pb(II) on MMBC more comprehensively than the pseudo-first-order or Elovich kinetic equations. The adsorption process showed good fitting to the Langmuir, Temkin and Dubinin-Radushkevich (D-R) isotherm models. The maximum saturated adsorption capacity was 66.83 mg•g -1 , as calculated by fitting the Langmuir equation (303 K±1). The mechanism for adsorption of Pb(II) involved electrostatic attraction, functional group complexation and ion exchange caused by the surface energy of the material. The rate for removal of Pb(II) by MMBC still reached 65% after five adsorption-desorption and regeneration cycles, which indicated that MMBC was effectively regenerated. Therefore, MMBC is a potential economical and effective remediation agent that can be employed to remove Pb(II) from wastewater.

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A field experiment on stabilization of Cd in contaminated soils by surface-modified nano-silica (SMNS) and its phyto-availability to corn and wheat

Cited by 23 publications

References 33 publications

Agro-Pollutants and their Nano-Remediation from Soil and Water: A Mini-Review

Agro-Pollutants and their Nano-Remediation from Soil and Water: A Mini-Review

Recovery of Chlorosilane Residual Liquid to Prepare Nano-Silica via the Reverse Micro-Emulsion Process

Preparation of Multi-Group Magnetic Biochar (MMBC) and Its Mechanism for Adsorption of Pb(II) in Aqueous Solution

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