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Lu X.,Lunan Institute of Coal Chemical Engineering | Zhang L.,Zhejiang Normal University | Zhao H.,Jining Institute of Supervision and Inspection on Product Quality | Yan K.,Lunan Institute of Coal Chemical Engineering | And 2 more authors.
Journal of Materials Science and Technology | Year: 2012

Poly-crystalline In(OH) 3 nanorods have been successfully prepared via a urea-based precipitation using the colloidal carbon spheres as the templates. After calcinations, the resulted In 2O 3 nanorods with poly-crystalline structure were fabricated. Structure and morphology of the product were characterized by X-ray diffraction (XRD), and transmission electron microscopy (TEM). The possible formation process was schemed. The sensor gas properties towards C 2H 5OH and CO were examined. © 2012 The Chinese Society for Metals.


Lu X.,Shandong University | Yu Q.,Shandong University | Wang K.,Shandong University | Shi L.,Lunan Institute of Coal Chemical Engineering | And 4 more authors.
Crystal Research and Technology | Year: 2010

Flowerlike structured In2O3 were successfully synthesized via a hydrothermal process and the subsequent calcinations. The obtained sample consists of microrods with an average diameter of 0.5-1 μm and a length of 1-3 μm. Structure and property of the sample were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The sensing properties towards trimethylamine (TMA) were examined at 200-400 °C, which showed high sensitivity, better selectivity, and prompt response/recovery merits. © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.


Lu X.,Shandong University | Lu X.,Lunan Institute of Coal Chemical Engineering | Wang Q.,Shandong University | Cui D.,Shandong University
Journal of Materials Science and Technology | Year: 2010

g-C3N4/TiO2 composite were prepared by hydrolysis of Ti(OC4Hn 9)4 and the precursors of g-C3N4 at room temperature and annealing in nitrogen atmosphere. X-ray diffraction results revealed that all the products were anatase structure. The chemical nature of O, N of the g-C3N4/TiO2 were identified by X-ray photoelectron spectroscopy, presenting N-Ti-O and N-Ti-N doping status of the composite. The g-C3N4/TiO2 composite showed better photocatalytic activity for the UV and visible-light degradation of Rhodamine B. © 2010 The Chinese Society for Metals.


Lu X.,Lunan Institute of Coal Chemical Engineering | Lu X.,National Center for Quality Supervision and Inspection of Coal and Coal Chemical Product | Wang H.,Shandong Sacred Sun Power Sources Co. | Yang Y.,National Center for Quality Supervision and Inspection of Coal and Coal Chemical Product | Liu T.,Lunan Institute of Coal Chemical Engineering
Journal of Materials Science and Technology | Year: 2011

Graphite-like carbon nitride (g-C3N4) was synthesized in large quantities at 300°C under nitrogen by a solidstate reaction route. Furthermore, Al3+ and Mg2+ intercalation of g-C3N4 was performed by an electrochemical method. The starting C3N4 materials and intercalation compounds were characterized by X-ray powder diffraction, Fourier transform infrared spectra, thermogravimetry, transmission electron microscopy, and X-ray photoelectron spectroscopy. The possible structure model of intercalation compounds was proposed. The cation-π interactions and electrostatic interactions were used to explain the changes of microstructure and chemical bonds before and after intercalation. © 2011 The Chinese Society for Metals.


Gai L.,Shandong Polytechnic University | Mei Q.,Shandong Polytechnic University | Duan X.,Shandong Polytechnic University | Jiang H.,Shandong Polytechnic University | And 3 more authors.
Journal of Solid State Chemistry | Year: 2013

Nitrogen doping in association with a heterostructure not only modifies the band structure of TiO2 to make it more responsive to visible light, but also suppresses charge recombination and leads TiO2 to have enhanced photoactivity. In this paper, we report on the controlled synthesis of nitrogen doped binary and ternary TiO2 nanostructures through a hydrazine-mediated solvothermal approach. The phase, size, and morphology of the samples can be tuned by simply changing the reaction time. Also, the visible-light photoactivity of the samples was evaluated by decomposing methyl orange and formaldehyde in aqueous solution without any external oxidative or reductive radical-generating sources. The as-prepared catalysts exhibit enhanced photocatalytic activity compared to P25 and the undoped counterpart, and the selected catalyst shows high photostability and photoactivity after reuse four times. This new-type TiO2 nanostructures present a promising candidate for applications in photocatalysis, photochemistry, sensors, and solar cells. © 2013 Elsevier Inc. All rights reserved.


Huang J.-Q.,Shandong Normal University | Lv Q.-L.,Lunan Institute of Coal Chemical Engineering | Wang H.Y.,Shandong Normal University
Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy | Year: 2011

The mechanism of the competitive interaction of streptomycin and Evans blue (EB) to bovine serum albumin (BSA) has been studied by using both fluorimetry and spectrophtometry. Effects of pH, streptomycin and concentration of EB on the competitive interaction of streptomycin and EB were examined. A static fluorescence quenching process was confirmed in the light of Stern-Volmer plot. The test result showed that there were strong and weak binding sites on BSA molecule and the binding constant of EB-BSA complex and the number of binding site n were obtained. These facts revealed that the competitive interaction was occurred between EB and streptomycwhich can possibly provide useful message in investigation of the interaction of antibiotic with BSA. © 2011 Elsevier B.V.


Lu X.,Shandong University | Lu X.,Lunan Institute of Coal Chemical Engineering | Yin L.,Shandong University
Journal of Materials Science and Technology | Year: 2011

Porous indium oxide nanorods have been synthesized by calcination of indium hydroxide, which were prepared through a simple sol-gel and aging process at low temperature in the presence of sodium dodecyl sulfate (SDS). X-ray diffraction (XRD), scanning electron microscopy (SEM), and high-resolution transmission electron microscopy (HRTEM) were adopted to characterize the phase composition and morphology of the resulted samples. The sensing properties towards H2 were examined at 340°C, which showed better sensitivity and quick response/recovery merits. © 2011 The Chinese Society for Metals.


Wang L.,Qingdao University of Science and Technology | Zhao L.,Qingdao University of Science and Technology | Xue R.,Qingdao University of Science and Technology | Lu X.,Lunan Institute of Coal Chemical Engineering | And 2 more authors.
Science China Chemistry | Year: 2012

Multifunctional molecules are capable of assembling via different supramolecular synthons, or hydrogen bond motifs, between the same or different functional groups, leading to the possibility of cocrystal. Utilization of the interplay of dimensionality (1-D, 2-D and 3-D), orientation of functional groups of the building blocks, influence of rigid/flexible linking groups, and weak interactions provides an interesting route for the creation of novel supramolecular architectures in the crystal lattice. N-unsubstituted 1H-benzotriazole and carboxylic acid, being self-complementary molecules, offer a broad scope of study of binary compounds based on the complementary combination of H-bonding/donating sites. We report here the construction of three extended molecular networks in cocrystals of the carboxylic acid group of the acid and the 1H-benzotriazole triazole moiety. We have been able to identify four major supramolecualr synthons that would be helpful in the prediction of structural motifs for these kinds of studies. Interestingly, these heterosynthons are strikingly similar, to those of the homosynthons of the individual functional groups. The nature of the aza groups helps to enhance the overall volume of the crystal lattice thus leading to the formation of various supramolecular assemblies. Thermal stability of these compounds has been investigated by thermogravimetric analysis (TGA) of mass loss. © 2012 Science China Press and Springer-Verlag Berlin Heidelberg.


Feng J.,Shandong University | Li F.,Shandong University | Bai Y.-J.,Shandong University | Han F.-D.,Shandong University | And 3 more authors.
Materials Chemistry and Physics | Year: 2013

Hollow graphitic carbon nanospheres (HGCNSs) were synthesized on large scale by a simple reaction between glucose and Mg at 550°C in an autoclave. Characterization by X-ray diffraction, Raman spectroscopy and transmission electron microscopy demonstrates the formation of HGCNSs with an average diameter of 10 nm or so and a wall thickness of a few graphenes. The HGCNSs exhibit a reversible capacity of 391 mAh g-1 after 60 cycles when used as anode materials for Li-ion batteries. © 2012 Elsevier B.V. All rights reserved.

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