Selective Ion Pair Adsorption of Cobalt and Copper Salts on Cationically Produced Poly(1,3-divinylimidazolid-2-one)/Silica Hybrid Particles

Meyer, Torsten; Prause, Silvio; Spange, Stefan; Friedrich, M.

doi:10.1006/jcis.2000.7417

Cited by 8 publications

(4 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Silica-polymer hybrids are important candidates for environmental pollution control processes. The application of silica-polymer hybrid systems for removal of heavy metal ions such as cobalt and copper salts from waste water has been studied by Meyer et al 77 The large surface area, well-defined pore size and pore shape of the silica particles, and the specific binding sites of the polymer help removal of these metals.…”

Section: Applicationsmentioning

confidence: 99%

Surface initiated polymerizations from silica nanoparticles

2006

View full text Add to dashboard Cite

show abstract

Section: Applicationsmentioning

confidence: 99%

Surface initiated polymerizations from silica nanoparticles

2006

View full text Add to dashboard Cite

show abstract

“…What’s more, by means of molecular design, the organic polymer chains of organic/inorganic nano-hybrids can adsorb different kinds of pollutants at the same time via van der Waals forces [ 26 ], hydrogen bonding [ 27 ], charge interactions [ 28 ], complexation [ 29 ], and other driving forces [ 30 , 31 ]. Therefore, organic/inorganic nano-hybrids are deemed to be an ideal adsorption material [ 32 , 33 , 34 ].…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Removal of Cr(VI) and Phenol from Water Using Silica-di-Block Polymer Hybrids: Adsorption Kinetics and Thermodynamics

Yang

Gong

et al. 2022

Polymers

View full text Add to dashboard Cite

Heavy metal ions and organic pollutants often coexist in industrial effluents. In this work, silica-di-block polymer hybrids (SiO2-g-PBA-b-PDMAEMA) with two ratios (SiO2/BA/DMAEMA = 1/50/250 and 1/60/240) were designed and prepared for the simultaneous removal of Cr(VI) and phenol via a surface-initiated atom-transfer radical polymerization process using butyl methacrylate (BA) as a hydrophobic monomer and 2-(Dimethylamino)ethylmethacrylate (DMAEMA) as a hydrophilic monomer. The removal efficiency of Cr(VI) and phenol by the hybrids reached 88.25% and 88.17%, respectively. The sample with a larger proportion of hydrophilic PDMAEMA showed better adsorption of Cr(VI), and the sample with a larger proportion of hydrophobic PBA showed better adsorption of phenol. In binary systems, the presence of Cr(VI) inhibited the adsorption of phenol, yet the presence of phenol had a negligible effect on the adsorption of Cr(VI). Kinetics studies showed that the adsorption of Cr(VI) and phenol fitted the pseudo-second-order model well. Thermodynamic studies showed that the adsorption behavior of Cr(VI) and phenol were better described by the Langmuir adsorption isotherm equation, and the adsorption of Cr(VI) and phenol were all spontaneous adsorptions driven by enthalpy. The adsorbent still possessed good adsorption capacity for Cr(VI) and phenol after six adsorption–desorption cycles. These findings show that SiO2-g-PBA-b-PDMAEMA hybrids represent a satisfying adsorption material for the simultaneous removal of heavy metal ions and organic pollutants.

show abstract

“…Organic–inorganic hybrids are widely used in wastewater treatment for their durability, stability and variable adsorption driving forces [ 26 , 27 , 28 ]. Gao et al, reported silica-based functional composite particles grafting with poly(2-(dimethylamino)ethyl methacrylate) (PDMAEMA) by solution polymerization, and the hybrid was used for Cr(VI) and Cu(II) adsorption [ 29 ].…”

Section: Introductionmentioning

confidence: 99%

Multifunctional Silica-Based Amphiphilic Block Copolymer Hybrid for Cu(II) and Sodium Oleate Adsorption in Beneficiation Wastewater

Chang

Liu

et al. 2022

Polymers

View full text Add to dashboard Cite

Beneficiation wastewater contains various types of pollutants, such as heavy metal ions and organic pollutants. In this work, a silica-based amphiphilic block copolymer, SiO2–g–PBMA–b–PDMAEMA, was obtained by surface-initiated atom transfer radical polymerization (SI-ATRP) for Cu(II) and sodium oleate adsorption in beneficiation wastewater, using butyl methacrylate (BMA) as a hydrophobic monomer and 2-(dimethylamino)ethylmethacrylate (DMAEMA) as a hydrophilic monomer. FTIR, TGA, NMR, GPC, XRD, N2 adsorption–desorption isotherms and TEM were used to characterize the structure and morphology of the hybrid adsorbent. The introduction of PBMA greatly increased the adsorption of sodium oleate on SiO2–g–PBMA–b–PDMAEMA. Adsorption kinetics showed that the adsorption of Cu(II) or sodium oleate on SiO2–g–PBMA–b–PDMAEMA fitted the pseudo-second-order model well. Adsorption isotherms of Cu(II) on SiO2–g–PBMA–b–PDMAEMA were better described by the Langmuir adsorption isotherm model, and sodium oleate on SiO2–g–PBMA–b–PDMAEMA was better described by the Freundlich adsorption isotherm model. The maximum adsorption capacity of Cu(II) and sodium oleate calculated from Langmuir adsorption isotherm equation reached 448.43 mg·g−1 and 129.03 mg·g−1, respectively. Chelation and complexation were considered as the main driving forces of Cu(II) adsorption, and the van der Waals force as well as weak hydrogen bonds were considered the main driving forces of sodium oleate adsorption. The adsorbent was recyclable and showed excellent multicomponent adsorption for Cu(II) and sodium oleate in the mixed solution. SiO2–g–PBMA–b–PDMAEMA represents a satisfying adsorption material for the removal of heavy metal ions and organic pollutants in beneficiation wastewater.

show abstract

Selective Ion Pair Adsorption of Cobalt and Copper Salts on Cationically Produced Poly(1,3-divinylimidazolid-2-one)/Silica Hybrid Particles

Cited by 8 publications

References 30 publications

Surface initiated polymerizations from silica nanoparticles

Surface initiated polymerizations from silica nanoparticles

Simultaneous Removal of Cr(VI) and Phenol from Water Using Silica-di-Block Polymer Hybrids: Adsorption Kinetics and Thermodynamics

Multifunctional Silica-Based Amphiphilic Block Copolymer Hybrid for Cu(II) and Sodium Oleate Adsorption in Beneficiation Wastewater

Contact Info

Product

Resources

About