Novel amino-functionalized Fe3O4/carboxylic multi-walled carbon nanotubes: One-pot synthesis, characterization and removal for Cu(II)

Zhan, Yingqing; Hu, Hai; He, Yi; Long, Zhihang; Wan, Xinyi

doi:10.1134/s1070427216110227

Cited by 19 publications

(2 citation statements)

References 35 publications

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“…Carbon nanotubes could also be combined with other supports to make better nanocomposites. For example, Zhan et al prepared a novel magnetic amino-functionalized Fe 3 O 4 /carboxylic multi-walled CNTs hybrid by using a one-pot solvothermal method [63]. The novel CNTs-based nanocomposite showed an extremely high separation efficiency towards Cu (II) in batch adsorption tests, which resulted from the synergistic effect between the CNTs and the amino groups.…”

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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“…Porous materials have also been utilized in coating of MNPs. Fe 3 O 4 /GO [120], Fe 3 O 4 /carbon nanotubes (CNTs) [121] and Fe 3 O 4 / carboxylic multi-walled CNTs [122] are some of the magnetic porous structures that have proven efficient in trapping these hazardous metals. Although the use of MNPs for the removal of hazardous metals has received a lot of attention and show great promise in capture and absorption of metal contaminants, little research has been done on the incorporation of additional metal catalyst on the magnetic surface to try and improve its capability of absorption.…”

Section: Toxic Element Absorptionmentioning

confidence: 99%

Magnetite immobilized metal nanoparticles in the treatment and removal of pollutants from wastewater: a review

2023

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The increase in population and industrial activities has resulted in harmful pollutants in our water sources that cause a concern for our future health and environmental well-being. These pollutants include pharmaceuticals, nitroarenes, synthetic dyes, oil and heavy metals that can be toxic, carcinogenic and lead to multiple organ failure. Conventional methods used to remove these toxins are of high cost, poor recyclability and low efficiency. Therefore, it is important to find suitable methods to purify industrial and household wastewater. Nanoparticles possess useful characteristics such as high surface-to-volume ratio, high optical absorption coefficient and tunable band edges for optimized catalytic capability. Magnetite NPs in specific have proven great efficiency in the removal and degradation of such pollutants as it is affordable, recyclable and easy to remove in the presence of an external magnetic field. Surface functionalization of these magnetic NPs is seen as an excellent bridge between homogeneous and heterogeneous catalysis. A metal catalyst immobilized on the surface of these magnetic nanoparticles (MNPs) affords customization and optimization of their properties for targeted applications. This study briefly discusses the synthesis of the magnetic core and different immobilization methods used to secure a metal catalyst onto its surface. This is followed by a detailed discussion where these metal catalysts immobilized on MNPs are used to improve its absorption and degradation capabilities in wastewater treatment.

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