Different approaches for preparing a novel thiol-functionalized graphene oxide/Fe-Mn and its application for aqueous methylmercury removal

Huang, Yao Hui; Tang, Jingchun; Gai, Longshuang; Gong, Yanyan; Guan, Hao; He, Ruozhu; Lyu, Honghong

doi:10.1016/j.cej.2017.03.015

Cited by 131 publications

(23 citation statements)

References 47 publications

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“…The chemical state of Fe 2+ appears after 39.5 h of etching at 709.4 eV [31]. The peaks at 707.5 eV and 706.8 eV correspond to Fe-C and pure Fe [32]. They occur after 20 h of etching and can be clearly observed in Figure 4a after 25 h of etching.…”

Section: Samples Comositionmentioning

confidence: 92%

Complementary SEM-AFM of Swelling Bi-Fe-O Film on HOPG Substrate

et al. 2020

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The objective of this work is to study the delamination of bismuth ferrite prepared by atomic layer deposition on highly oriented pyrolytic graphite (HOPG) substrate. The samples’ structures and compositions are provided by XPS, secondary ion mass spectrometry (SIMS) and Raman spectroscopy. The resulting films demonstrate buckling and delamination from the substrates. The composition inside the resulting bubbles is in a gaseous state. It contains the reaction products captured on the surface during the deposition of the film. The topography of Bi-Fe-O thin films was studied in vacuum and under atmospheric conditions using simultaneous SEM and atomic force microscopy (AFM). Besides complementary advanced imaging, a correlative SEM-AFM analysis provides the possibility of testing the mechanical properties by using a variation of pressure. In this work, the possibility of studying the surface tension of the thin films using a joint SEM-AFM analysis is shown.

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Section: Samples Comositionmentioning

confidence: 92%

Complementary SEM-AFM of Swelling Bi-Fe-O Film on HOPG Substrate

et al. 2020

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“…The energy level of C1s electrons observed at 285 eV, in Figure 6b and should be related to C-C/C=C bonds in the structure. [64] The N1s electron peak at 398 eV in Figure 6c is due to the imidazolate-N atom in the structure. [65] The peak at 531 eV for O1s belongs to the O atom in the NHC ligand, which has a −1 oxidation state (Figure 6d).…”

Section: Catalyst Characterizationmentioning

confidence: 98%

Magnetite@MCM‐41 nanoparticles as support material for Pd‐N‐heterocyclic carbene complex: A magnetically separable catalyst for Suzuki–Miyaura reaction

Akkoç

Buğday

Altın

et al. 2021

Applied Organom Chemis

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The Magnetite@MCM‐41@NHC@Pd catalyst was obtained with Pd metal bound to the NHC ligand anchored to the surface of Fe3O4@MCM‐41. It was characterized by Fourier transform infrared (FTIR) spectroscopy, transmission electron microscopy (TEM), X‐ray diffraction (XRD), X‐ray photoelectron spectroscopy (XPS), energy disperse X‐ray analysis (EDX), thermogravimetric analysis (TGA), differential thermal analysis (DTA), and scanning electron microscopy (SEM). The amount of Pd in the Magnetite@MCM‐41@NHC@Pd was measure by inductively coupled plasma–optical emission spectroscopy (ICP‐OES) analysis. The catalytic activity of Magnetite@MCM‐41@NHC@Pd heterogeneous catalyst done on Suzuki–Miyaura reactions of aryl halides with different substituted arylboronic acid derivatives. All coupling reactions afforded excellent yields and up to 408404 Turnover Frequency (TOF) h−1 in the presence of 2 mg of Magnetite@MCM‐41@NHC@Pd catalyst (0.0564 mmol g−1, 0.01127 mmol% Pd) at room temperature in 2‐propanol/H2O (1:2). Moreover, Magnetite@MCM‐41@NHC@Pd catalyst was recover by applying the magnet and reused for another reaction. The catalyst showed excellent structural and chemical stability and reused ten times without a substantial loss in its catalytic performance.

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“…Fe-Mn-thiol-functionalized graphene oxide (GO-Fe-Mn/S) was applied to remove methylmercury (CH 3 Hg + ) from aqueous solution by Huang et al (2017). In the adsorbent synthesis, 3-mercaptopropyltrimethoxysilane (3-MPTS) was used as a silanizing reagent after the electrochemical method to obtain GO-Fe-Mn.…”

Section: Aliphatic Organic Speciesmentioning

confidence: 99%

Functionalized Graphene-Based Materials as Innovative Adsorbents of Organic Pollutants: A Concise Overview

Fraga

Carvalho

Ghislandi

et al. 2019

Braz. J. Chem. Eng.

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The functionalization of graphene nanosheets is the cutting edge of materials sciences nowadays. Such research promotes the development of innovative, low cost and highly capable sorbents. This review article aims to assemble the available information on functionalized graphene used for the adsorption of organic pollutants and establishes a critical comparison between the data reported in the literature. Various optimal experimental conditions (pH, temperature, contact time, adsorbent dosage) and adsorbent characterization methods (FTIR, Raman, XPS spectra, XRD, TEM and AFM) have been listed to enlighten adsorption mechanisms, capacity and limiting aspects. Moreover, adsorption isotherms, kinetics and thermodynamic data of different functionalized graphene-based materials towards a wide range of organic pollutants were analyzed and tabulated. In each evaluation topic, environmental and human health protection is subject for discussion, as well as the scientific breakthrough works available in high impact journals in the field.

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Different approaches for preparing a novel thiol-functionalized graphene oxide/Fe-Mn and its application for aqueous methylmercury removal

Cited by 131 publications

References 47 publications

Complementary SEM-AFM of Swelling Bi-Fe-O Film on HOPG Substrate

Complementary SEM-AFM of Swelling Bi-Fe-O Film on HOPG Substrate

Magnetite@MCM‐41 nanoparticles as support material for Pd‐N‐heterocyclic carbene complex: A magnetically separable catalyst for Suzuki–Miyaura reaction

Functionalized Graphene-Based Materials as Innovative Adsorbents of Organic Pollutants: A Concise Overview

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