Poly(vinyl alcohol) and alginate cross-linked matrix with immobilized Prussian blue and ion exchange resin for cesium removal from waters

Lai, Yu-Chen; Chang, Yin-Ru; Chen, Manli; Lo, Yu-Kuo; Lai, Juin‐Yih; Lee, Dong Hoon

doi:10.1016/j.biortech.2016.04.096

Cited by 72 publications

(16 citation statements)

References 28 publications

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“…As seen in Figure 2, the first mass loss was attributed to the dehydration process and a 12.6 wt% loss up to 210 • C. The second part was a thermal degradation stage, which resulted in pyrolysis from 210 • C to 510 • C with a weight loss of 45.8 wt%. The third part represented the conversion of the remaining materials to carbon residues and CaCO 3 and the residual weights were 40.2 wt% [23].…”

Section: Adsorption Kineticsmentioning

confidence: 99%

The Fabrication of Calcium Alginate Beads as a Green Sorbent for Selective Recovery of Cu(Ⅱ) from Metal Mixtures

et al. 2019

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Calcium alginate (CA) beads as a green sorbent were easily fabricated in this study using sodium alginate crosslinking with CaCl2, and the crosslinking pathway was the exchange between the sodium ion of α-L-guluronic acid and Ca(II). The experimental study was conducted on Cu(II), Cd(II), Ni(II) and Zn(II) as the model heavy metals and the concentration was determined by inductively coupled plasma optical emission spectrometry (ICP-OES). The characterization and sorption behavior of the CA beads were analyzed in detail via using scanning electron microscopy (SEM), fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS). The adsorption experiments demonstrated that the CA beads exhibited a high removal efficiency for the selective adsorption of Cu(II) from the tetra metallic mixture solution and an excellent adsorption capacity of the heavy metals separately. According to the isotherm studies, the maximum uptake of Cu(II) could reach 107.53 mg/g, which was significantly higher than the other three heavy metal ions in the tetra metallic mixture solution. Additionally, after five cycles of adsorption and desorption, the uptake rate of Cu(II) on CA beads was maintained at 92%. According to the properties mentioned above, this material was assumed to be applied to reduce heavy metal pollution or recover valuable metals from waste water.

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Section: Adsorption Kineticsmentioning

confidence: 99%

The Fabrication of Calcium Alginate Beads as a Green Sorbent for Selective Recovery of Cu(Ⅱ) from Metal Mixtures

et al. 2019

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“…As a result of the anthropogenic discharge of industrial effluents and wastewater, the use of adsorption technologies to treat these fluid streams has attracted universal interest from researchers globally. To date, several studies have focused on the ideal characteristic properties of adsorbents such as large internal pore volume, large internal surface area, active surface properties and/or functional groups, pore size distribution, weak adsorbate/adsorbent interactions, chemical, thermal and mechanical stability and the cost of constituent materials [1][2][3][4]6,7]. Adsorbents can essentially be described as amorphous materials consisting of complex networks of interconnected micropores (Φ < 2 nm), mesopores (2 nm < Φ < 50 nm) and macropores (Φ > 50 nm) [8,9].…”

Section: Introductionmentioning

confidence: 99%

Ironmaking and Steelmaking Slags as Sustainable Adsorbents for Industrial Effluents and Wastewater Treatment: A Critical Review of Properties, Performance, Challenges and Opportunities

et al. 2020

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This paper critically discusses the structure, properties and applications of ironmaking and steelmaking slags and their silicate-based variants as low-cost adsorbents for removing cations and anions from industrial effluents and wastewater. Undoubtedly, the performance of slag-based adsorbents depends on their physical, chemical and phase chemical properties. The presence of crystalline phases, for example, has a significant effect on the adsorption capacity. However, despite their low cost and ubiquity, their chemical and geometric heterogeneity significantly affects the performance and applications of slag-based adsorbents. These challenges notwithstanding, the efficacy of slag-based adsorbents can be significantly enhanced through purposeful activation to increase the specific surface area and density of adsorption sites on the surfaces of adsorbent particles. The synthesis of functionalised adsorbents such as geopolymers, zeolites and layered double hydroxides from silicate and aluminosilicate precursors can also significantly increase the performance of slag-based adsorbents. In addition, the ability to stabilise the dissolved and/or entrained toxic metal species in stable phases in slags, either through controlled post-process fluxing or crystallisation, can significantly enhance the environmental performance of slag-based adsorbents. Most critical in the design of future slag-based adsorbents is the integration of the engineered properties of molten and solidified slags to the recovery and stabilisation of dissolved and/or entrained metals.

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“…Several methods have been used to remove heavy metals from contaminated water. They include chemical precipitation [17,18], ion exchange [19,20], adsorption [21,22], membrane filtration [23,24], reverse osmosis [25,26], solvent extraction [27], and electrochemical treatment [28,29]. Many of these methods suffer from high capital and operational costs.…”

Section: Introductionmentioning

confidence: 99%

Removal of Heavy Metals and Metalloids from Water Using Drinking Water Treatment Residuals as Adsorbents: A Review

et al. 2019

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Heavy metal contamination is one of the most important environmental issues. Therefore, appropriate steps need to be taken to reduce heavy metals and metalloids in water to acceptable levels. Several treatment methods have been developed recently to adsorb these pollutants. This paper reviews the ability of residuals generated as a by-product from the water treatment plants to adsorb heavy metals and metalloids from water. Water treatment residuals have great sorption capacities due to their large specific surface area and chemical composition. Sorption capacity is also affected by sorption conditions. A survey of the literature shows that water treatment residuals may be a suitable material for developing an efficient adsorbent for the removal of heavy metals and metalloids from water.

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Poly(vinyl alcohol) and alginate cross-linked matrix with immobilized Prussian blue and ion exchange resin for cesium removal from waters

Cited by 72 publications

References 28 publications

The Fabrication of Calcium Alginate Beads as a Green Sorbent for Selective Recovery of Cu(Ⅱ) from Metal Mixtures

The Fabrication of Calcium Alginate Beads as a Green Sorbent for Selective Recovery of Cu(Ⅱ) from Metal Mixtures

Ironmaking and Steelmaking Slags as Sustainable Adsorbents for Industrial Effluents and Wastewater Treatment: A Critical Review of Properties, Performance, Challenges and Opportunities

Removal of Heavy Metals and Metalloids from Water Using Drinking Water Treatment Residuals as Adsorbents: A Review

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