High-efficiency removal of Pb(II) and humate by a CeO2–MoS2 hybrid magnetic biochar

Li, Ronghua; Deng, Hongxia; Zhang, Xiaofeng; Wang, Jim J.; Awasthi, Mukesh Kumar; Wang, Quan; Xiao, Ran; Zhou, Baoyue; Du, Juan; Zhang, Zengqiang

doi:10.1016/j.biortech.2018.10.053

Cited by 160 publications

(25 citation statements)

References 30 publications

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“…Although MoS 2 ‐based catalysts have made great contributions to the treatment of heavy metal ions, the reuse of those catalysts is still needed improvement. Therefore, Li et al 133 synthesized a novel CeO 2 ‐MoS 2 hybrid magnetic biochar (CMMB), which was able to remove Pb 2+ (263.6 mg/g) even in the presence of 0–0.1 mol/L NaNO 3 . The addition of magnetic biochar and nontoxic CeO 2 both increased the adsorption capacity of MoS 2 .…”

Section: Molybdenum‐based Heterogeneous Catalysts For Wastewater Treatmentmentioning

confidence: 99%

Molybdenum‐based heterogeneous catalysts for the control of environmental pollutants

Bao

Liu

et al. 2021

EcoMat

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Molybdenum (Mo)‐based materials with abundant electronic properties have been extensively studied in terms of environmental pollutant control. In photocatalysis, thermal catalysis, electrocatalysis, Fenton or Fenton‐like reactions, and other technical means, the properties of different Mo‐based materials have been fully exerted. In this review, the latest developments in Mo‐based materials in the control of water and air pollutants are summarized. In addition, possible methods are discussed to enhance the activity of Mo‐based materials to provide the direction for the design of highly efficient Mo‐based catalysts in the future.

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Section: Molybdenum‐based Heterogeneous Catalysts For Wastewater Treatmentmentioning

confidence: 99%

Molybdenum‐based heterogeneous catalysts for the control of environmental pollutants

Bao

Liu

et al. 2021

EcoMat

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“…Electrostatic interaction was often considered as a possible mechanism to explain the adsorption of dyes and heavy metals [37,40,44]. To confirm the role of electrostatic interaction during dyes and heavy metals adsorption over MoS 2 NS, the adsorption efficiency in various pH values were conducted.…”

Section: Electrostatic Interactionsmentioning

confidence: 99%

Fabrication of Ultrathin MoS2 Nanosheets and Application on Adsorption of Organic Pollutants and Heavy Metals

et al. 2020

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Owing to their peculiar structural characteristics and potential applications in various fields, the ultrathin MoS2 nanosheets, a typical two-dimensional material, have attracted numerous attentions. In this paper, a hybrid strategy with combination of quenching process and liquid-based exfoliation was employed to fabricate the ultrathin MoS2 nanosheets (MoS2 NS). The obtained MoS2 NS still maintained hexagonal phase (2H-MoS2) and exhibited evident thin layer-structure (1–2 layers) with inconspicuous wrinkle. Besides, the MoS2 NS dispersion showed excellent stability (over 60 days) and high concentration (0.65 ± 0.04 mg mL−1). The MoS2 NS dispersion also displayed evident optical properties, with two characteristic peaks at 615 and 670 nm, and could be quantitatively analyzed with the absorbance at 615 nm in the range of 0.01–0.5 mg mL−1. The adsorption experiments showed that the as-prepared MoS2 NS also exhibited remarkable adsorption performance on the dyes (344.8 and 123.5 mg g−1 of qm for methylene blue and methyl orange, respectively) and heavy metals (185.2, 169.5, and 70.4 mg g−1 of qm for Cd2+, Cu2+, and Ag+). During the adsorption, the main adsorption mechanisms involved the synergism of physical hole-filling effects and electrostatic interactions. This work provided an effective way for the large-scale fabrication of the two-dimensional nanosheets of transition metal dichalcogenides (TMDs) by liquid exfoliation.

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“…Biochar, a carbonaceous product derived from thermal conversion of carbon-rich biomass in an oxygen-limited environment, has gained enormous attention in the removal of pollutants because it is an effective, cheap, and renewable material [7] . However, in current researches, biochar was found to have a limited ability to adsorb high levels of contaminants including Pb [8,9] . The adsorption capacity of biochar is directly related with its physico-chemical properties, such as surface area, functional groups and cation exchange capacity [10] .…”

Section: Introductionmentioning

confidence: 95%

Influence of pyrolysis temperature on the characteristics and lead(II) adsorption capacity of phosphorus-engineered poplar sawdust biochar

Bai

et al. 2021

Journal of Analytical and Applied Pyrolysis

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High-efficiency removal of Pb(II) and humate by a CeO2–MoS2 hybrid magnetic biochar

Cited by 160 publications

References 30 publications

Molybdenum‐based heterogeneous catalysts for the control of environmental pollutants

Molybdenum‐based heterogeneous catalysts for the control of environmental pollutants

Fabrication of Ultrathin MoS2 Nanosheets and Application on Adsorption of Organic Pollutants and Heavy Metals

Influence of pyrolysis temperature on the characteristics and lead(II) adsorption capacity of phosphorus-engineered poplar sawdust biochar

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