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Wang P.-Q.,Southwest Petroleum University | Bai Y.,Southwest Petroleum University | Liu J.-Y.,Southwest Petroleum University | Fan Z.,Southwest Petroleum University | Hu Y.-Q.,Civil Affairs Bureau of Karamay District
Micro and Nano Letters | Year: 2012

N, C-codoped BiOCl (BiOCl-NC) flower-like hierarchical structures were synthesised by an one-pot solvothermal process and characterised by X-ray diffraction patterns, X-ray photoelectron spectroscopy, UV-vis diffuse reflectance spectra, transmission electron microscopy and high-resolution transmission electron microscopy. As-synthesised BiOCl-NC showed higher photocatalytic activity in an aqueous RhB photodegradation system than pure BiOCl under visible light irradiation. The trapping experiments of active species during the photocatalytic reaction showed that the photocatalytic degradation of organic pollutants in the BiOCl-NC system proceeds through direct hole transfer and O 2 •- rather than •OH. © 2012 The Institution of Engineering and Technology.


Wang P.-Q.,Southwest Petroleum University | Bai Y.,Southwest Petroleum University | Liu J.-Y.,Southwest Petroleum University | Fan Z.,Southwest Petroleum University | Hu Y.-Q.,Civil Affairs Bureau of Karamay District
Micro and Nano Letters | Year: 2012

Ag/AgX (X=Cl, Br) indoor daylight-driven (DLD) photocatalysts were synthesised by a one-step chemical bath method at low temperature and characterised by X-ray diffraction patterns, X-ray photoelectron spectroscopy, field emission scanning electron microscope and UV-visible diffuse reflectance spectra. The Ag/AgX composites showed very high DLD photocatalytic activity for rhodamine B degradation. The photocatalytic mechanism over the Ag/AgX was analysed by active species trapping experiments. It showed that the photocatalytic degradation of organic pollutants in the Ag/AgX system proceeds mainly through direct holes transfer. This study has revealed that plasmonic indoor DLD photocatalysis may open a new frontier for indoor pollutant control around the clock under fluorescent lamp illumination. © 2012 The Institution of Engineering and Technology.


Wang P.-Q.,Southwest Petroleum University | Bai Y.,Southwest Petroleum University | Liu J.-Y.,Southwest Petroleum University | Fan Z.,Southwest Petroleum University | Hu Y.-Q.,Civil Affairs Bureau of Karamay District
Micro and Nano Letters | Year: 2013

BiOI nanobelts were synthesised by a one-pot solvothermal process in the presence of [Bmim]I. As-synthesised BiOI nanobelts showed higher photocatalytic activity in the aqueous RhB photodegradation system than BiOI nanosheets under visible-light irradiation. It could be widely used for the environmental purification of organic pollutants in an aqueous solution. © The Institution of Engineering and Technology 2013.


Wang P.-Q.,Southwest Petroleum University | Bai Y.,Southwest Petroleum University | Liu J.-Y.,Southwest Petroleum University | Fan Z.,Southwest Petroleum University | Hu Y.-Q.,Civil Affairs Bureau of Karamay District
Catalysis Communications | Year: 2012

Rutile TiO2 nanoparticle modified anatase TiO2 nanorods (TiO2-RMA) with {010} facets exposing structure were one-pot synthesized and characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), and fast-Fourier transform pattern (FFT). It showed high photocatalytic reduction CO2 conversion than pure anatase TiO2 nanorods. The total yield of CH4 of TiO2-RMA obtained in the experiment after 8 h of continuous irradiation was 18.9 μmol/g. In comparison, TiO2-A shows low photocatalytic activity toward methane production 10.3 μmol/g after 8 h UV light irradiation. And the photocatalytic mechanism of TiO 2-RMA also was discussed. © 2012 Elsevier B.V.


Bai Y.,Southwest Petroleum University | Wang P.,Southwest Petroleum University | Wu J.,Southwest Petroleum University | Qian Z.,Southwest Petroleum University | Hu Y.,Civil Affairs Bureau of Karamay District
Shiyou Huagong/Petrochemical Technology | Year: 2012

A silicon potassium polyol drilling fluid system with membrane structure were prepared, which combined the chemical effect of potassium silicate(gel sedimentation) with the physical effect of polyol(cloud point effect). The evaluation of the comprehensive performance of the system was carried out. It was showed that the rheological characteristics, filtration property, inhibition, thermostability, blocking capacity and lubricity of this system were good. And its contamination tolerance was outstanding, for NaCl, MgCl 2, CaCl 2 and cuttings, the tolerances were 6%, 0.5%, 0.5% and 15%. The drilling fluid is beneficial to stabilizing the well wall.

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