Morphology and chemical characteristics of micro- and Nano-particles in the haze in Beijing studied by XPS and TEM/EDX

Xu, Peng; Xu, Jianxun; He, Meng; Song, Lexin; Chen, Dongliang; Guo, Guangsheng; Dai, Hongxing

doi:10.1016/j.scitotenv.2016.03.042

Cited by 30 publications

(23 citation statements)

References 37 publications

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“…The N 1s spectra of FeP‐D and FeNiP‐D (Figure d) show that besides the major peak at 399.7 and 400.0 eV, there is a minor peak at higher binding energy of 401.5 and 400.6 eV. They are not due to the nitrate group, which appears at much higher binding energy of around 407–408 eV . It is mostly because there are two types of DMF coordination in these two samples, which correspond to the coordination at O2 (at the edge of the plane; minor XPS peak) and O3 (major XPS peak) positions for replacement of −OH and H 2 O groups, respectively (Scheme ).…”

Section: Methodsmentioning

confidence: 95%

“…[14] P2po fF eP-D,F eNiP-D,a nd NiP-D at 132.6-132.3 eV is assigned to the phosphonate group.T he N 1s spectra of FeP-D and FeNiP-D (Figure 3d)s how that besides the major peak at 399.7 and 400.0 eV,there is aminor peak at higher binding energy of 401.5 and 400.6 eV.They are not due to the nitrate group,w hich appears at much higher binding energy of around 407-408 eV. [15] It is mostly because…”

Section: Angewandte Chemiementioning

confidence: 90%

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Rational Synthesis of Amorphous Iron‐Nickel Phosphonates for Highly Efficient Photocatalytic Water Oxidation with Almost 100 % Yield

Xing

Yin

et al. 2019

Angew Chem Int Ed

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A simple solvent ligation effect was successfully used to disrupt the growth of a model compound, Fe[(OH)(O3P(CH2)2CO2H)]⋅H2O (MIL‐37), into an extended 2D structure by replacing water with dimethylformamide (DMF) as the solvent during the synthesis. Owing to the lack of −OH group, which provides the corner‐sharing (binding) oxygen atoms for the octahedra, an amorphous and porous structure is formed. When Fe3+ is partially replaced by Ni2+, the amorphous structure remains and the resultant binary metal catalyst displays excellent photocatalytic oxygen evolution activity with almost 100 % yield achieved under visible light irradiation using [Ru(bpy)3]2+ as the photosensitizer. This study opens up new possibilities of using the simple solvent effect to synthesize high surface area metal phosphonates for catalytic and other applications.

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Section: Methodsmentioning

confidence: 95%

Section: Angewandte Chemiementioning

confidence: 90%

Rational Synthesis of Amorphous Iron‐Nickel Phosphonates for Highly Efficient Photocatalytic Water Oxidation with Almost 100 % Yield

Xing

Yin

et al. 2019

Angew Chem Int Ed

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“…Wt% for C, N and O were 33.32%, 30.73% and 19.96% respectively. While for control ( Figure 2) EDX analysis shows Wt% of O, C, S and Au equal to 16.04%, 2.63%, 0.73% and 0.41%.The gold weight present was decrease after binding with DNA which was a normal result because the surface of the particles was completely coated with DNA and tiopronin [16].…”

Section: Energy Dispersive X-ray Analysis (Edx)mentioning

confidence: 90%

“…A position vacated by an ejected inner shell electron is eventually occupied by a higher energy electron from an outer shell but for this to happen; the transferring outer electron must give up some of its energy by emitting an X-ray,EDX was carried out using a Hitachi SU70 Analytical SEM. It is equipped with an Oxford Instruments 50mm2 X-Max silicon drift EDS detector [16].…”

Section: Energy Dispersive X-ray Analysis (Edx)mentioning

confidence: 99%

Thermodynamic and Kinetic Studies of Tiopronin Gold Nanoparticles Binding With Extracted DNA of Rheumatoid Arthritis

Abdulsattar¹,

Rashid²,

Hussain³

2018

MJS

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Nanomaterial can interact with biological systems in different way, using their surface functionalities and depending on the particle size, shape, and aggregation .The present work aims to characterize the binding of tiopronin gold nanoparticles with extracted DNA from blood patients with rheumatoid arthritis kinetically and thermodynamically. A total of 19 patients with rheumatoid arthritis attending Baghdad Teaching Hospital / Medical City were included in this study. Tiopronin monolayer-protected gold nanoparticles) were prepared by chemical methods and a partial purification of DNA extracted was preceded using negative ions exchange column chromatography. Characterization of Tio Au NPs binding with DNA was investigated by using TEM,SEM,FTIR,EDX and UV-VIS. techniques.The results indicated that the average size of Tio Au NPs was 48 nm.,and there is a different binding affinity of DNA to tiopronin gold nanoparticles depending on pH. Also the melting temperature of DNA was decreased 5C0 when binding with tiopronin gold nanoparticles. Thermodynamic studies indicated that the reaction was endothermic, less order, and non spontaneous.

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“…Components of microcapsules can be investigated by energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), and selected-area electron diffraction (SAED). With the development of analytical techniques, we evaluated the components and morphology at the same time to improve accuracy [76,77]. Other methods, such as differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA), are applied to evaluate the thermo-properties [78,79,80].…”

Section: Microencapsulation In Oilfield Additivesmentioning

confidence: 99%

Research Advances of Microencapsulation and Its Prospects in the Petroleum Industry

Guo

et al. 2017

Materials

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Additives in the petroleum industry have helped form an efficient system in the past few decades. Nowadays, the development of oil and gas has been facing more adverse conditions, and smart response microcapsules with the abilities of self-healing, and delayed and targeted release are introduced to eliminate obstacles for further exploration in the petroleum industry. However, limited information is available, only that of field measurement data, and not mechanism theory and structural innovation data. Thus we propose that the basic type, preparation, as well as mechanism of microcapsules partly depend on other mature fields. In this review, we explore the latest advancements in evaluating microcapsules, such as X-ray computed tomography (XCT), simulation, and modeling. Finally, some novel microencapsulated additives with unparalleled advantages, such as flexibility, efficiency, and energy-conservation are described.

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Morphology and chemical characteristics of micro- and Nano-particles in the haze in Beijing studied by XPS and TEM/EDX

Cited by 30 publications

References 37 publications

Rational Synthesis of Amorphous Iron‐Nickel Phosphonates for Highly Efficient Photocatalytic Water Oxidation with Almost 100 % Yield

Rational Synthesis of Amorphous Iron‐Nickel Phosphonates for Highly Efficient Photocatalytic Water Oxidation with Almost 100 % Yield

Thermodynamic and Kinetic Studies of Tiopronin Gold Nanoparticles Binding With Extracted DNA of Rheumatoid Arthritis

Research Advances of Microencapsulation and Its Prospects in the Petroleum Industry

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