Samaria-doped ceria nanopowders for heavy metal removal from aqueous solution

Meepho, Malinee; Sirimongkol, Wansika; Ayawanna, Jiratchaya

doi:10.1016/j.matchemphys.2018.04.083

Cited by 30 publications

(5 citation statements)

References 33 publications

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“…Moreover, CeO 2 has also been reported to cooperate with other metal oxides to treat heavy metals [211,212]. Different morphologies of CeO 2 nanopowder were prepared and the removal effect of samaria-doped ceria nanopowder (SDC) towards Pb (II), Cu (II), and Zn (II) was investigated [213]. The results showed that spherical SDC nanopowder (SDC-F) had a higher adsorption capacity than that of cluster plate-like SDC nanopowder (SDC-I).…”

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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“…There are many well-known processes regarding the treatments of contaminated wastewaters like membrane filtration, 1-4 chemical precipitation, [5][6][7] electrocoagulation, [8][9][10][11][12] reverse osmosis, [13][14][15] adsorbtion, [16][17][18][19][20][21][22][23][24] ion exchange, [25][26][27] etc., all of them with their inherent advantages and disadvantages. At the same time, most of them are not suitable for developing countries due to huge cost investment in terms of use of chemicals, infrastructure, and operation.…”

Section: Introductionmentioning

confidence: 99%

Heavy metal adsorption ability of a new composite material based on starch strengthened with chemically modified cellulose

Anghel¹,

Niculaua

Spiridon³

2019

Polymers for Advanced Techs

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Adsorption of heavy metals (Pb, Zn, and Cu) on a new bioadsorbent based on starch reinforced with modified cellulose with toluene‐diisocyanate has been studied using batch‐adsorption technology. The study was carried out in order to find if this bio material, designed for seedling pots manufacture, is able to act like a barrier between soil pollutants and plants. The influence of contact time, pH, adsorbent dose, and salt concentrations was also evaluated. The obtained data were examined using the Langmuir and Freundlich adsorption models. Optimal results were obtained at pH 5.0, temperature of 25°C, contact time of 120 minutes, and an adsorbent dose of 4 mg/mL. Experimental data along with computed Langmuir parameters show that the adsorption process is favorable, and the maximum adsorption capacity of the adsorbent for lead, zinc, and copper was 66.66, 58.82, and 47.61 mg/g, respectively.

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“…Ion exchange [8], chemical precipitation [9], flocculation [10], and adsorption [11] have been applied to remove heavy metals, including lead [12]. Among them, the adsorption method may be a low-cost and straightforward operation that can efficiently remove low-concentration lead in the solution [13]. As an adsorbent, sludge-derived biochar can be used to remove Pb 2+ from water.…”

Section: Introductionmentioning

confidence: 99%