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7990-2010
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X-ray diffraction
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X-ray photoelectron spectroscopy
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- Author:
- Han, Jie; Liu, Yan; Wang, Lu; Guo, Rong
- Source:
- Journal of polymer science 2010 v.48 no.17 pp. 3903-3912
- ISSN:
- 0887-624X
- Subject:
- X-ray diffraction; X-ray photoelectron spectroscopy; colloids; gold; nanocomposites; nanogold; nonionic surfactants; oxidants; polymerization; polymers
- Abstract:
- ... This article describes a versatile two-step method for gold/polyaniline derivative core/shell nanocomposites with the aid of nonionic surfactant F127. First, F127 and monomer were introduced to gold colloids followed by the addition of oxidant to initiate the polymerization of monomer to afford a conducting polymer shell around each gold nanoparticle. Experimental parameters, such as kinds and con ...
- DOI:
- 10.1002/pola.24177
- https://doi.org/10.1002/pola.24177
- Author:
- Fan, Ye; Wang, Bin; Yuan, Songhu; Wu, Xiaohui; Chen, Jing; Wang, Linling
- Source:
- Bioresource technology 2010 v.101 no.19 pp. 7661-7664
- ISSN:
- 0960-8524
- Subject:
- Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; adsorbents; adsorption; bamboos; carbon; charcoal; chloramphenicol; surface area; wastewater
- Abstract:
- ... This study described the adsorption of chloramphenicol (CAP) in wastewater on the renewable bioresource of bamboo charcoal (BC). Results showed that CAP adsorption on BC (Ln qe =1.272 Ln Ce +1.971) and H₂SO₄ modified BC (Ln qe =1.851 Ln Ce +0.659) were very slight, and on NaOH modified BC was significantly increased (Ln qe =0.344 Ln Ce +6.490). The adsorbents were characterized by N₂ adsorption-de ...
- DOI:
- 10.1016/j.biortech.2010.04.046
- PubMed:
- 20457515
- https://doi.org/10.1016/j.biortech.2010.04.046
- Author:
- Koh, Jong Kwan; Kim, Yong Woo; Ahn, Sung Hoon; Min, Byoung Ryul; Kim, Jong Hak
- Source:
- Journal of polymer science 2010 v.48 no.2 pp. 183-189
- ISSN:
- 0887-6266
- Subject:
- Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; chlorine; contact angle; crystal structure; hydrophilicity; mechanical properties; nuclear magnetic resonance spectroscopy; polymerization; polymers; ultrafiltration
- Abstract:
- ... An amphiphilic comb polymer consisting of poly(vinylidene fluoride-co-chlorotrifluoroethylene) [P(VDF-co-CTFE)] main chains and poly(oxyethylene methacrylate) (POEM) side chains was synthesized using direct initiation of the chlorine atoms in CTFE units through atom transfer radical polymerization, as confirmed by ¹H NMR and FTIR spectroscopy. The P(VDF-co-CTFE)-g-POEM comb polymer was introduced ...
- DOI:
- 10.1002/polb.21887
- https://doi.org/10.1002/polb.21887
- Author:
- Na, Ping; Jia, Xiumin; Yuan, Bin; Li, Yuan; Na, Jiyu; Chen, Yuchen; Wang, Linshuang
- Source:
- Journal of chemical technology and biotechnology 2010 v.85 no.5 pp. 708-714
- ISSN:
- 0268-2575
- Subject:
- X-ray diffraction; X-ray photoelectron spectroscopy; adsorption; aqueous solutions; arsenic; arsenites; chemical reactions; drinking water; ionic strength; ions; models; montmorillonite; pH; pollution; sorption isotherms; temperature; water purification
- Abstract:
- ... BACKGROUND: Arsenic pollution in drinking water has been found in most countries. Arsenate (As(V)) and arsenite (As(III)) are two major forms of inorganic arsenic species, and the latter is the more toxic. The removal of arsenic ions from water has attracted increased attention, and therefore further understanding and development of techniques for removal of arsenic ions are required.RESULTS: Adso ...
- DOI:
- 10.1002/jctb.2360
- https://doi.org/10.1002/jctb.2360
- Author:
- Han, Ting; Fan, Tongxiang; Chow, Suk-Kwun; Zhang, Di
- Source:
- Bioresource technology 2010 v.101 no.17 pp. 6829-6835
- ISSN:
- 0960-8524
- Subject:
- X-ray diffraction; X-ray photoelectron spectroscopy; absorption; anions; cations; crops; crystals; irradiation; lamps; metals; nitrogen; oxides; phosphorus; red light; seeds
- Abstract:
- ... Four typical kinds of crop seeds are studied as non-metallic bio-precursors to synthesize biogenic N-P-codoped TiO₂ (BNP-TiO₂). The as-prepared BNP-TiO₂ samples are characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), nitrogen-adsorption measurement and UV-Vis spectroscopy. The results show that BNP-TiO₂ possesses single anatase phase with mesopore structures, and nitr ...
- DOI:
- 10.1016/j.biortech.2010.03.107
- https://doi.org/10.1016/j.biortech.2010.03.107
- Author:
- Zhou, Hongfu; Zhang, Chen; Li, Hangquan; Du, Zhongjie
- Source:
- Journal of polymer science 2010 v.48 no.21 pp. 4697-4703
- ISSN:
- 0887-624X
- Subject:
- X-radiation; X-ray diffraction; X-ray photoelectron spectroscopy; carbon nanotubes; chemical bonding; iron oxides; magnetic fields; nanocomposites; nanoparticles; polyacrylic acid; rheometers; thermogravimetry; transmission electron microscopes; transmission electron microscopy
- Abstract:
- ... Fe₃O₄ nanoparticles were indirectly implanted onto functionalized multi-walled carbon nanotubes (MWCNTs) leading to a nanocomposite with stronger magnetic performance. Poly(acrylic acid) (PAA) oligomer was first reacted with hydroxyl-functionalized MWCNTs (MWCNTs-OH) forming PAA-grafted MWCNTs (PAA-g-MWCNTs). Subsequently, Fe₃O₄ nanoparticles were attached onto the surface of PAA-g-MWCNTs through ...
- DOI:
- 10.1002/pola.24259
- https://doi.org/10.1002/pola.24259
- Author:
- Xue Yan Ma; Zhi Gang Chen; Sandy Budi Hartono; Hai Bo Jiang; Jin Zou; Shi Zhang Qiao; Hua Gui Yang
- Source:
- Chemical communications 2010 v.46 no.35 pp. 6608-6610
- ISSN:
- 1364-548X
- Subject:
- EDTA (chelating agent); X-ray diffraction; X-ray photoelectron spectroscopy; chemical communication; chemical reactions; scanning electron microscopy; titanium dioxide; transmission electron microscopy
- Abstract:
- ... Uniform anatase TiO₂ particles exposed by {001} facets were successfully synthesized by using EDTA together with F as morphology controlling agents. The crystallographic structure as well as the growth mechanism of anatase TiO₂ particles was investigated systematically by XRD, SEM, TEM and XPS, respectively. ...
- DOI:
- 10.1039/c0cc01473g
- https://doi.org/10.1039/c0cc01473g
- Author:
- Layla Al Juhaiman; Ludmila Scoles; David Kingston; Bussaraporn Patarachao; Dashan Wang; Farid Bensebaa
- Source:
- Green chemistry 2010 v.12 no.7 pp. 1248-1252
- ISSN:
- 1463-9270
- Subject:
- X-ray diffraction; X-ray photoelectron spectroscopy; absorption; aqueous solutions; copper; copper nanoparticles; crystallites; energy; environmental impact; green chemistry; heat; indium; microwave ovens; optical properties; oxidation; solvents; transmission electron microscopy
- Abstract:
- ... A green synthesis route of Cu(In₁₋ₓGaₓ)Se₂ nanoparticles with variable Ga content is described in this report for the first time. Only water and a minimum amount of energy input are used. Heating appropriate amounts of Cu, In, Ga and Se dispersed in an aqueous solution containing mercapto-acetic acid in a microwave oven gives rise to small and uniform nanoparticles. These new materials have been c ...
- DOI:
- 10.1039/c001813a
- https://doi.org/10.1039/c001813a
- Author:
- Tzialla, Aikaterini A.; Pavlidis, Ioannis V.; Felicissimo, Marcella P.; Rudolf, Petra; Gournis, Dimitrios; Stamatis, Haralambos
- Source:
- Bioresource technology 2010 v.101 no.6 pp. 1587-1594
- ISSN:
- 0960-8524
- Subject:
- X-ray photoelectron spectroscopy; X-ray diffraction; thermal analysis; Pseudozyma antarctica; immobilized enzymes; hydrogen peroxide; clay; triacylglycerol lipase; smectite; nanoclays
- Abstract:
- ... The immobilization of lipase B from Candida antarctica on smectite group nanoclays (Laponite, SWy-2 and Kunipia), as well as on their organically modified derivatives, was investigated. A combination of techniques, namely X-ray diffraction, thermal analysis, X-ray photoelectron and FT-IR spectroscopy, was used for characterization of the novel immobilized biocatalyst. Structural and biochemical ch ...
- DOI:
- 10.1016/j.biortech.2009.10.023
- https://doi.org/10.1016/j.biortech.2009.10.023
- Author:
- Hengquan Yang; Xiaojing Han; Zhancheng Ma; Runqin Wang; Jing Liu; Xiangfei Ji
- Source:
- Green chemistry 2010 v.12 no.3 pp. 441-451
- ISSN:
- 1463-9270
- Subject:
- Fourier transform infrared spectroscopy; Suzuki reaction; X-ray diffraction; X-ray photoelectron spectroscopy; acids; boronic acids; bromides; catalysts; ethanol; green chemistry; guanidines; nitrogen; nuclear magnetic resonance spectroscopy; organobromine compounds; oxidation; porous media; silylation; sorption; transmission electron microscopy; ultraviolet-visible spectroscopy
- Abstract:
- ... By immobilizing a mixture of a palladium-guanidine complex and guanidine on the mesoporous cage-like material SBA-16 via a one-pot silylation, we have successfully prepared a new solid catalyst for Suzuki coupling and the aerobic oxidation of alcohols. The structure and composition of the solid catalyst were characterized with N₂ sorption, XRD, TEM, FT-IR and solid state NMR. The coordination stat ...
- DOI:
- 10.1039/b919175e
- https://doi.org/10.1039/b919175e
- Author:
- Reddy, Kakarla Raghava; Jeong, Han Mo; Lee, Youngil; Raghu, Anjanapura Venkataramanaiah
- Source:
- Journal of polymer science 2010 v.48 no.7 pp. 1477-1484
- ISSN:
- 0887-624X
- Subject:
- Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; carbon nanotubes; cationic surfactants; electrical properties; ferric chloride; micelles; nanocomposites; oxidants; polymerization; polymers; temperature; transmission electron microscopy
- Abstract:
- ... Multi-walled carbon nanotubes (MWCNTs)-core/thiophene polymer-sheath composite nanocables were synthesized by chemical oxidative polymerization of 3,4-ethylenedioxythiophene (EDOT) with oxidant (FeCl₃) in the presence of cationic surfactant, deceyltrimethyl ammonium bromide (DTAB). In the polymerization process, DTAB surfactant molecules were adsorbed on the surface of MWCNTs and forms MWCNTs-DTAB ...
- DOI:
- 10.1002/pola.23883
- https://doi.org/10.1002/pola.23883
- Author:
- Salavagione, Horacio J.; Martínez, Gerardo; Gómez, Rafael; Segura, José L.
- Source:
- Journal of polymer science 2010 v.48 no.16 pp. 3613-3622
- ISSN:
- 0887-624X
- Subject:
- X-ray diffraction; X-ray photoelectron spectroscopy; alcohols; dimethyl sulfoxide; esterification; fluorescence; polyvinyl alcohol; solubility; thermal stability
- Abstract:
- ... A new material has been prepared by covalent attachment of a perylene derivative, N-(carboxyphenyl)-N′-(8-pentadecyl)perylene-3,4:9,10-bis(dicarboximide) (PDI-COOH), to poly(vinyl alcohol) (PVA) by esterification. The perylenediimide (PDI)-modified PVA polymers are soluble in water and dimethylsulfoxide (DMSO). This solubility is conferred to the insoluble perylene derivative by the water-soluble ...
- DOI:
- 10.1002/pola.24142
- https://doi.org/10.1002/pola.24142