Facile preparation of mercapto modified magnetic iron oxide nanoparticles for removal of mercury(II) from aqueous solutions

Yuehong, Pang; Wang, Qin; Ma, Yanyun; Yue, Qi; Shen, Xiaofang

doi:10.5004/dwt.2019.23308

Cited by 2 publications

(2 citation statements)

References 37 publications

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“…After four cycles, the adsorption decreased from near 3.99 mmol/g to 3.24 mmol/g, whereas desorption reduced from near quantitative to 80%. An ultrasound-assisted co-precipitation method was developed to prepare lipophilic thiol-functionalized Fe 3 O 4 magnetic nanoparticles (EDT-Fe 3 O 4 MNPs), with sodium dodecyl sulfonate (SDS) as dispersant and 1,2-ethanedithiol (EDT) as functionalization reagent [85]. The effects of the dosage of adsorbent, initial pH of the solution and contact time on Hg(II) removal from aqueous solutions were investigated.…”

Section: 6-diaminopyridine (Pd) and Polyamine Compoundsmentioning

confidence: 99%

Adsorption Processing for the Removal of Toxic Hg(II) from Liquid Effluents: Advances in the 2019 Year

López

2020

Metals

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Mercury is a toxic metal, thus, it is an element which has more and more restrictions in its uses, but despite the above, the removal of this metal, from whatever the form in which it is encountered (zero valent metal, inorganic, or organic compounds), and from different sources, is of a widespread interest. In the case of Hg(II), or Hg2+, the investigations about the treatment of Hg(II)-bearing liquid effluents (real or in most cases synthetic solutions) appear not to end, and from the various separation technologies, adsorption is the most popular among researchers. In this topic, and in the 2019 year, more than 100 publications had been devoted to this field: Hg(II)-removal-adsorption. This work examined all of them.

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Section: 6-diaminopyridine (Pd) and Polyamine Compoundsmentioning

confidence: 99%

Adsorption Processing for the Removal of Toxic Hg(II) from Liquid Effluents: Advances in the 2019 Year

López

2020

Metals

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“…For these reasons, it is essential to capture mercury contaminants from the environment, especially water and air. Traditionally, silica aerogels, zeolites, , nanoparticles, and biomaterials , have been used as adsorbents for mercury removal; however, low kinetics and uptake efficiency make using these materials challenging.…”

Section: Introductionmentioning

confidence: 99%

Sulfur-Decorated Hyper-Cross-Linked Coal Tar: A Microporous Organic Polymer for Efficient and Expeditious Mercury Removal

Ramezani

Ozdemir

Khosropour

et al. 2020

ACS Appl. Mater. Interfaces

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Hyper-cross-linked microporous organic polymers are a class of porous materials that have captured widespread attention owing to their high surface areas and wide range of monomeric sources. Balancing economy with performance is the initial hurdle when designing effective hyper-cross-linked microporous organic polymers. Herein, we demonstrated an inexpensive sulfurated solvent-knitted hyper-cross-linked microporous polymer scaffold, named sulfur-decorated hyper-cross-linked coal tar (CTHP-SES), utilizing coal tar as an aromatic monomer with numerous positions for potential chelation of toxic metals, particularly mercury, from water. The resulting material illustrated selective adsorption of mercury from both water (1037 mg g −1 ) and the gas phase (416 mg g −1 ) with rapid kinetics (183.67 mg min −1 g −1 ), good recyclability (4 runs), and excellent stability under both strong basic and acidic conditions. CTHP-SES was able to reduce the concentration of the Hg(II) solution from 1 mg L −1 to 32 μg L −1 after 10 min due in part to the promising distribution coefficient (K d = 2.371 × 10 6 mL g −1 ). These results show that CTHP-SES offers a promising and practical platform to cope with a variety of environmental contaminations.

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Facile preparation of mercapto modified magnetic iron oxide nanoparticles for removal of mercury(II) from aqueous solutions

Cited by 2 publications

References 37 publications

Adsorption Processing for the Removal of Toxic Hg(II) from Liquid Effluents: Advances in the 2019 Year

Adsorption Processing for the Removal of Toxic Hg(II) from Liquid Effluents: Advances in the 2019 Year

Sulfur-Decorated Hyper-Cross-Linked Coal Tar: A Microporous Organic Polymer for Efficient and Expeditious Mercury Removal

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