Synthesis of graphene oxide/rare-earth complex hybrid luminescent materials via π-π stacking and their pH-dependent luminescence

Zhao, Yunchao; Huang, Linjun; Wang, Yanxin; Tang, Jianguo; Liu, Jixian; Belfiore, Laurence A.; Kipper, Matt J.

doi:10.1016/j.jallcom.2016.06.100

Cited by 40 publications

(20 citation statements)

References 44 publications

(80 reference statements)

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“…Since its isolation and characterization in 2004, graphene has drawn great attention from researchers worldwide for its good mechanical properties [12], large surface area [13,14], and quantum Hall effect [15][16][17][18]. Graphene oxide (GO), one derivative of graphene, has recently been studied as a membrane material for its easy preparation and chemical stability [19,20].…”

Section: Introductionmentioning

confidence: 99%

“…In our previous work, graphene-based hybrid materials, such as GO/rare-earth materials [14], graphene/silver hybrid membranes [28], GO/polyacrylamide composite membranes [7], and graphenegold nanoparticles membranes [30], have been reported. We have investigated the influence of the amount of AgNPs on membrane nanofiltration performance [28].…”

Section: Introductionmentioning

confidence: 99%

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Graphene Oxide Nanofiltration Membranes Containing Silver Nanoparticles: Tuning Separation Efficiency via Nanoparticle Size

Yang¹,

Huang²,

Wang³

et al. 2020

Nanomaterials

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Three types of graphene oxide/silver nanoparticles (GO/AgNPs) composite membranes were prepared to investigate size-effect of AgNPs on nanofiltration ability. The size of AgNPs was 8, 20, and 33 nm, which was characterized by UV-visible spectroscopy and transmission electron microscopy. The morphology and structure of GO and GO/AgNPs composite membranes were characterized by atomic force microscopy, scanning electron microscopy, and X-ray diffraction. The filtration performance of membranes were evaluated on a dead-end filtration device. When the size of AgNPs is 20 nm, the GO/AgNPs composite membrane has the highest water flux (106.1 L m−2 h−1 bar−1) and rejection of Rhodamine B (RhB) (97.73%) among three types of composite membranes. The effect of feed concentration of dye solution and the flux of common solvent was also investigated. The mechanism was discussed, which demonstrated that both interlaying spacing and defect size influence the filtration ability of membrane, which is instructive to future study.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Graphene Oxide Nanofiltration Membranes Containing Silver Nanoparticles: Tuning Separation Efficiency via Nanoparticle Size

Yang¹,

Huang²,

Wang³

et al. 2020

Nanomaterials

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“…A kind of GO luminescent material has been researched and prepared, which may be a new research direction and can be applied in the field of medicine. It is no doubt that GO/polymer membrane will hopefully become the next generation of multifunctional composite membrane.…”

Section: Discussionmentioning

confidence: 99%

Recent developments in graphene‐based polymer composite membranes: Preparation, mass transfer mechanism, and applications

Huang

Wang

et al. 2019

J of Applied Polymer Sci

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The shortage of water resources is a problem concerned by all countries in the world. In order to solve this problem of human survival, membrane separation technology promotes the development of water treatment field by virtue of its own advantages of high efficiency and low consumption. Membrane separation technology combined with nanomaterials has brought surprises to researchers. Graphene has unique structure and properties, making graphene and its derivatives have very good potential in water treatment and selective separation. Graphene-based materials combined with traditional polymer materials have great potential in the field of membrane separation technology. In this article, we first introduce the preparation methods and transport mechanism of graphenebased membranes, and then summarize the recent applications of graphene oxide/polymer composite membranes in water purification, gas separation, self-cleaning, and oil-water separation. It is expected to become the next generation of functional composite membranes.

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“…GO/RGO nanocomposite films containing various metal oxide nanoparticles can display superior electrical properties and be used for an even larger variety of applications. The introduction of metal oxide nanoparticles, such as zinc oxide (ZnONPs), aluminum‐doped zinc oxide, and various mixed ferrites (MFe 2 O 4 , M = Co, Zn, Cu, Ni, Mn, and so on), into the GO/RGO matrix has been explored for manufacturing supercapacitors, pollutant sensors, lithium‐ion battery electrodes, and luminescent materials . This wide variety of devices is possible because GO/RGO has a high chemical affinity and numerous adsorption sites available to interact with metal oxide nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

Laser Reduction of Graphene Oxide/Zinc Oxide Nanoparticle Nanocomposites as a One‐Step Process for Supercapacitor Fabrication

Júnior

Cardoso

Paterno

et al. 2020

Physica Status Solidi (a)

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Herein, the laser reduction of graphene oxide (GO) and zinc oxide nanoparticle (ZnONP) nanocomposite films is proposed as a one‐step process for supercapacitor fabrication. The films, deposited by casting onto a flexible poly(ethylene terephthalate) (PET) substrate coated with indium‐doped tin oxide (ITO), are subjected to laser irradiation (5 mW, 405 nm) to reduce the GO phase and produce laser‐reduced GO (LRGO). Scanning electron microscopy/energy dispersion spectroscopy (SEM–EDS), micro‐Raman spectroscopy, and current versus voltage (I × V) analyses show a partial reduction of GO to LRGO, forming several conductor‐insulating (LRGO/GO) microporous interfaces, and thereby favoring the formation of a supercapacitor structure. Moreover, the topmost LRGO film layer is extensively reduced, making it sufficiently conducting to work as the counter electrode as well. However, the reduction process is less effective when ZnONPs are introduced into the GO matrix because ZnONPs get clustered and scatter the incident laser before reaching the GO phase. The capacitive behavior, assessed by cyclic voltammetry and galvanostatic charge–discharge measurements, reveals the following specific capacitances: 2.68 F g−1 (GO/LRGO) and 1.44 F g−1 (GO/LRGO/ZnONP). The method proposed herein is advantageous because it produces the microcapacitor structures and LRGO counter electrode in a single laser reduction step.

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Synthesis of graphene oxide/rare-earth complex hybrid luminescent materials via π-π stacking and their pH-dependent luminescence

Cited by 40 publications

References 44 publications

Graphene Oxide Nanofiltration Membranes Containing Silver Nanoparticles: Tuning Separation Efficiency via Nanoparticle Size

Graphene Oxide Nanofiltration Membranes Containing Silver Nanoparticles: Tuning Separation Efficiency via Nanoparticle Size

Recent developments in graphene‐based polymer composite membranes: Preparation, mass transfer mechanism, and applications

Laser Reduction of Graphene Oxide/Zinc Oxide Nanoparticle Nanocomposites as a One‐Step Process for Supercapacitor Fabrication

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