Efficient elimination of Cr(VI) from aqueous solutions using sodium dodecyl sulfate intercalated molybdenum disulfide

Wang, Jian; Zhang, Ruihong; Huo, Yingzhong; Ai, Yuejie; Gu, Ping; Wang, Xiangxue; Li, Qian; Yu, Shujun; Chen, Yuantao; Zhang, Yu; Chen, Jianrong

doi:10.1016/j.ecoenv.2019.03.064

Cited by 54 publications

(12 citation statements)

References 55 publications

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“…The sorption capacity was much lower than that of Cr(VI) on Fe 3 O 4 @MoS 2 composites (324.3 mg/g at pH 5.0 and 298 K) (Yang et al 2019b). Cr(VI) could be efficiently adsorbed on the composites and then reduced to form Cr 2 O 3 or Cr(OH) 3 precipitates on iron sulfide oxidebased carbon nanomaterials (Wang et al 2019e;Yang et al 2020). Comparing to nZVI-based biochar materials, iron sulfide-based carbon nanomaterials showed much higher sorption-reduction capacity and could more efficiently solidify Cr(VI) on solid particles.…”

Section: Sorption Of Heavy Metal Ions and Radionuclidesmentioning

confidence: 99%

Efficient elimination of organic and inorganic pollutants by biochar and biochar-based materials

Jin

et al. 2020

Biochar

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300

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Biochar have received multidisciplinary attention because of their extraordinary physicochemical properties. In this review, the application of biochar and biochar-based materials for the efficient elimination of organic and inorganic pollutants are summarized. The sorption of organic chemicals and heavy metal ions/radionuclides, degradation/transformation of organic pollutants, and sorption-reduction-solidification of high-valent metal ions are described in detail. The interaction mechanism at molecular level from advanced spectroscopic techniques and theoretical calculations is discussed. Finally, the challenges in the application of biochar and biochar-supported materials in the immobilization of heavy metal ions and photocatalytic degradation of persistent organic pollutants in soils or wastewater are pointed out. This review is helpful for the graduate students to understand the recent works about biochar and biochar-supported materials in environmental pollutants management.

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Section: Sorption Of Heavy Metal Ions and Radionuclidesmentioning

confidence: 99%

Efficient elimination of organic and inorganic pollutants by biochar and biochar-based materials

Jin

et al. 2020

Biochar

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300

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“…The peaks at 3435 and 1635 cm –1 were attributed to the hydroxyl groups . The peak at 1401 cm –1 was assigned to SO 4 2– . The band that appeared at 1105 cm –1 was associated with SO groups on the surface of SDS/MoS 2 .…”

Section: Resultsmentioning

confidence: 97%

The Adsorption of Europium and Uranium on the Sodium Dodecyl Sulfate Modified Molybdenum Disulfide Composites

et al. 2020

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With the wide use of nuclear energy, radioactive pollution has become a public environmental concern. In this study, the sodium dodecyl sulfate modified molybdenum disulfide (SDS/ MoS 2 ) was used to remove Eu(III) and U(VI). The experimental results demonstrated that the uptake of radionuclides on SDS/MoS 2 was dependent on solution pH. The maximum adsorption capacities of SDS/MoS 2 at pH 5.0 were 83.0 mg/g for Eu(III) and 98.4 mg/g for U(VI), respectively. The simultaneous adsorption experiment revealed that the existence of Eu(III) could decrease the capture of U(VI) and vice versa. The main removal mechanism of Eu(III) and U(VI) was the electrostatic attraction. Furthermore, the S groups of SDS/MoS 2 might form complexes with Eu(III) and U(VI), which also increased the elimination of radionuclides.

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“…The MoS 2 adsorbent before and after adsorption was analyzed by FT-IR spectrum. As shown in Figure 10, the strong peak around 590 cm −1 is the characteristic tensile vibration peak of Mo-S [38,39]. The C-H vibration in the plane is the main reason for the occurrence of new characteristic peaks at 792 cm −1 .…”

Section: Adsorption Mechanismmentioning

confidence: 91%

Adsorption of Methylene Blue on Azo Dye Wastewater by Molybdenum Disulfide Nanomaterials

Wang

Zhang

et al. 2022

Sustainability

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In this study, flower-like MoS2 nanomaterials were synthesized by hydrothermal method with excess thiourea. The adsorption performance of MoS2 adsorbent for methylene blue (MB) in azo dye wastewater was studied. The morphology, crystal phase, and microstructure of nano MoS2 samples were characterized by X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy, and Fourier transform infrared spectroscopy. The effects of adsorption isotherm, kinetics, different hydrothermal time, and pH on the adsorption experiment were studied. The results showed that the MoS2 adsorbent with a hydrothermal time of 1 h had good adsorption properties for MB. The adsorption data accord with the Langmuir isotherm model, and the maximum adsorption capacity of MoS2 adsorbent is 200 mg/g, and the adsorption kinetics agrees well with the pseudo two-level model. The removal rate of MB is not significantly affected by the pH values. The large pH range can still maintain the removal rate above 93.47%, and the regeneration and recovery properties of MoS2 were also explored. Finally, the adsorption mechanism of MoS2 on MB is discussed.

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Efficient elimination of Cr(VI) from aqueous solutions using sodium dodecyl sulfate intercalated molybdenum disulfide

Cited by 54 publications

References 55 publications

Efficient elimination of organic and inorganic pollutants by biochar and biochar-based materials

Efficient elimination of organic and inorganic pollutants by biochar and biochar-based materials

The Adsorption of Europium and Uranium on the Sodium Dodecyl Sulfate Modified Molybdenum Disulfide Composites

Adsorption of Methylene Blue on Azo Dye Wastewater by Molybdenum Disulfide Nanomaterials

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