Enhanced sequestration of selenite in water by nanoscale zero valent iron immobilization on carbon nanotubes by a combined batch, XPS and XAFS investigation

Sheng, Guodong; Alsaedi, Ahmed; Shammakh, Wafa; Monaquel, Shatha; Sheng, Jiang; Wang, Xiangke; Li, Hui; Hao, Yuying

doi:10.1016/j.carbon.2015.12.013

Cited by 196 publications

(47 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…As shown in inset of Fig. 2, the adsorption kinetic of Sr(II) on CNFs can be satisfactorily fitted by pseudo-second-order kinetic model with correlation coefficients greater than 0.9999 (Table 1), which was consistent with the previous studies [43,44].…”

Section: Adsorption Kineticssupporting

confidence: 89%

The batch and modeling investigation of Sr(II) adsorption on carbon nanofibers

Feng

Yang

2016

J Radioanal Nucl Chem

View full text Add to dashboard Cite

Effect of water chemistry on Sr(II) adsorption onto carbon nanofibers (CNFs) was investigated by batch and modeling techniques. The characterization results showed that CNFs comprised a variety of functional groups such as -OH and -COOH groups. No effect of ionic strength indicated that Sr(II) adsorption onto CNFs was the innersphere surface complexation. The maximum adsorption capacity of CNFs was 58.72 mg/g at pH 4.5 and 293 K. The thermodynamic parameters suggested that Sr(II) adsorption was an endothermic and spontaneous processes. Diffuse layer model can give an excellent fits with SOSr ? and (SO) 2 Sr(OH) 2 2-inner-sphere surface complexes.

show abstract

Section: Adsorption Kineticssupporting

confidence: 89%

The batch and modeling investigation of Sr(II) adsorption on carbon nanofibers

Feng

Yang

2016

J Radioanal Nucl Chem

View full text Add to dashboard Cite

show abstract

“…A complementary description of the system was obtained by XPS analysis, which gave information about the nature of the interactions between adsorbate and adsorbent [59,60]. The XPS spectra of the Na-montmorillonite before and after 63 Ni(II) sorption were given in Fig.…”

Section: Possible Interaction Mechanismmentioning

confidence: 99%

Interaction mechanism of radionickel on Na-montmorillonite: Influences of pH, electrolyte cations, humic acid and temperature

Wang

Chen

et al. 2016

Chemical Engineering Journal

Self Cite

View full text Add to dashboard Cite

“…如图 5(e)所示, 纳米零价铁弥散在多孔材料表面(包括内表面和外表面)从而减少纳米零价铁的氧化和团聚. 常用于复合纳米零价铁的多孔材料有聚苯乙烯树脂 [60] 、活性炭 [61,62] 、介孔碳 [63] 、介孔硅 [64] 、碳纳米管 [65]…”

Section: 构筑纳米零价铁复合材料unclassified

“…另外, 多孔材料具有高比表面、丰富的裂隙、孔隙等特点, 也使这种复合材料具有巨大潜力. 较为典型的与纳米零价铁复合的多孔材料有: 还原氧化石墨烯 [89,90] 、多壁碳纳米管 [91] 、纤维素 [92] 、活性炭和生物质炭 [93～95] 、树脂 [96] 、纳米级氢氧化镁 [59] 等. 多孔材料复合的纳米零价铁复合材料的特性在于纳米零价铁弥散在多孔材料体系中, 可减少纳米零价铁颗粒的团聚, 增加材料的比表面积和材料表面的反应活性.…”

Section: 与多孔材料复合unclassified

Synthesis of Functional Nanoscale Zero-Valent Iron Composites for the Application of Radioactive Uranium Enrichment from Environment: A Review

Chen¹,

Huang²,

Zhang³

et al. 2017

Acta Chim. Sinica

Self Cite

View full text Add to dashboard Cite

With the widespread using of nuclear energy, the nuclear technology is developed rapidly and the radionuclide pollution such as uranium has become the serious problem for human health. Nanoscale Zero-Valent Iron (nZVI) has become the excellent adsorbent for the removal of uranium ions from environment because of its low cost, easy preparation, high surface-activity and excellent performance for adsorption of uranium. Due to synergistic effect of each monomer, the nZVI nanocomposites have been applied to remove radionuclides and the adsorption capacity of nZVI nanocomposites are improved to a further level. Hence, the preparation of nZVI and its nanocomposites for the efficient removal of radionuclides is one of the hot issues in the field of environmental science. The aim of this review is to summarize and outlook the recent research on the application of nZVI nanocomposites for the efficient removal of radioactive uranium from environment. The preparation of nZVI and its composites, the removal efficiency and removal mechanism has been summarized, and the application of the nZVI nanocomposites in environmental pollution cleanup has also been discussed, expecting for the reference of practical application and future research.

show abstract

Enhanced sequestration of selenite in water by nanoscale zero valent iron immobilization on carbon nanotubes by a combined batch, XPS and XAFS investigation

Cited by 196 publications

References 48 publications

The batch and modeling investigation of Sr(II) adsorption on carbon nanofibers

The batch and modeling investigation of Sr(II) adsorption on carbon nanofibers

Interaction mechanism of radionickel on Na-montmorillonite: Influences of pH, electrolyte cations, humic acid and temperature

Synthesis of Functional Nanoscale Zero-Valent Iron Composites for the Application of Radioactive Uranium Enrichment from Environment: A Review

Contact Info

Product

Resources

About