Nitrogen-doped nanoporous graphene induced by a multiple confinement strategy for membrane separation of rare earth

Tan, Hongxin; Zhang, Xin; Zhan, Li; Liang, Qing; Wu, Jinjun; Yuan, Yuan; Cao, Shiwei; Chen, Jia; Liu, Juewen; Qiu, Hongdeng

doi:10.1016/j.isci.2020.101920

Cited by 35 publications

(21 citation statements)

References 58 publications

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“…However, the limitation of interlayer spacing in GO membranes leads to low ion penetration. In order to solve this problem, Tan et al used confinement combustion to synthesize nitrogen-doped nanoporous graphene (NDNG) with adjustable pore size and controlled nitrogen content 1555 . The NDNG membranes exhibit good separation selectivity (~3.7) for Sc 3+ from other rare-earth ions and ~1.7 for Tm 3+ /Sm 3+ .…”

Section: Carbon Neutralization and Exhaust Gas Treatmentmentioning

confidence: 99%

Recent Progress on Two-Dimensional Materials

Chang¹,

Chen²,

Chen³

et al. 2021

Acta Physico Chimica Sinica

328

119

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Research on two-dimensional (2D) materials has been explosively increasing in last seventeen years in varying subjects including condensed matter physics, electronic engineering, materials science, and chemistry since the mechanical exfoliation of graphene in 2004. Starting from graphene, 2D materials now have become a big family with numerous members and diverse categories. The unique structural features and physicochemical properties of 2D materials make them one class of the most appealing candidates for a wide range of potential applications.In particular, we have seen some major breakthroughs made in the field of 2D materials in last five years not only in developing novel synthetic methods and exploring new structures/properties but also in identifying innovative applications and pushing forward commercialisation. In this review, we provide a critical summary on the recent progress made in the field of 2D materials with a particular focus on last five years. After a brief background 物理化学学报 Acta Phys. -Chim. Sin. 2021, 37 (12), 2108017 (3 of 151) introduction, we first discuss the major synthetic methods for 2D materials, including the mechanical exfoliation, liquid exfoliation, vapor phase deposition, and wet-chemical synthesis as well as phase engineering of 2D materials belonging to the field of phase engineering of nanomaterials (PEN). We then introduce the superconducting/optical/magnetic properties and chirality of 2D materials along with newly emerging magic angle 2D superlattices. Following that, the promising applications of 2D materials in electronics, optoelectronics, catalysis, energy storage, solar cells, biomedicine, sensors, environments, etc. are described sequentially. Thereafter, we present the theoretic calculations and simulations of 2D materials. Finally, after concluding the current progress, we provide some personal discussions on the existing challenges and future outlooks in this rapidly developing field.

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Section: Carbon Neutralization and Exhaust Gas Treatmentmentioning

confidence: 99%

Recent Progress on Two-Dimensional Materials

Chang¹,

Chen²,

Chen³

et al. 2021

Acta Physico Chimica Sinica

328

119

View full text Add to dashboard Cite

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“…X-ray diffraction (XRD) of PGQD didn't show the typical broad (002) peak (Figure 4b), which could be attributed to the large amount of PEG coating on the surface of GQD. However, the strong D peak (1386 cm -1 ) and G peak (1599 cm -1 ) could be found in Raman spectra (Figure S3) of PGQD, which confirmed the feature structure [38][39][40]. As compared with the Fourier transform infrared (FTIR) spectrum of GO, the strong and broad absorption peak at ≈3400 cm -1 from the O-H stretching vibration could be observed in PGQD and PEG [41].…”

Section: Synthesis and Characterizations Of Pgqdmentioning

confidence: 56%

Graphene Quantum Dots prepared by Electron Beam Irradiation for Safe Fluorescence Imaging of Tumor

Cao¹,

Qi²,

Gao³

et al. 2022

Nanotheranostics

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“…The nanopores of graphene membranes provide a significant pathway for ion penetration, therefore the ion selectivity facilitates the metal ion separation, Furthermore, the ion diffusion of porous graphene membranes can be enhanced by acid addition. To develop a metal ion separation performance, the pores of a graphene membrane can be modified by using oxide functional group derivatives [ 78 , 79 , 80 ]. The membrane modules often used in separation of mercury and heavy metals are hollow fibers and sheet layers [ 71 , 81 , 82 ].…”

Section: Membrane Separation For Mercury and Heavy Metalsmentioning

confidence: 99%

Graphene Oxide-Based Nanofiltration for Hg Removal from Wastewater: A Mini Review

Zunita

2021

Membranes

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Mercury (Hg) is one of heavy metals with the highest toxicity and negative impact on the biological functions of living organisms. Therefore, many studies are devoted to solving the problem of Hg separation from wastewater. Membrane-based separation techniques have become more preferable in wastewater treatment area due to their ease of operation, mild conditions and also more resistant to toxic pollutants. This technique is also flexible and has a wide range of possibilities to be integrated with other techniques. Graphene oxide (GO) and derivatives are materials which have a nanostructure can be used as a thin and flexible membrane sheet with high chemical stability and high mechanical strength. In addition, GO-based membrane was used as a barrier for Hg vapor due to its nano-channels and nanopores. The nano-channels of GO membranes were also used to provide ion mobility and molecule filtration properties. Nowadays, this technology especially nanofiltration for Hg removal is massively explored. The aim of the review paper is to investigate Hg removal using functionalized graphene oxide nanofiltration. The main focus is the effectiveness of the Hg separation process.

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Nitrogen-doped nanoporous graphene induced by a multiple confinement strategy for membrane separation of rare earth

Cited by 35 publications

References 58 publications

Recent Progress on Two-Dimensional Materials

Recent Progress on Two-Dimensional Materials

Graphene Quantum Dots prepared by Electron Beam Irradiation for Safe Fluorescence Imaging of Tumor

Graphene Oxide-Based Nanofiltration for Hg Removal from Wastewater: A Mini Review

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