Browsing 化学化工－已发表论文 by Title
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UASB和微生物固定化反应器降解含聚废水组合工艺
(2013-07-05)随着聚合物驱油技术在油田的广泛推广,部分水解聚丙烯酰胺(HPAM)在为油田提高采收率的同时,对当地环境也产生了相当大的危害。本文在对含聚污水水质分析和可生化性分析的基础上对污水进行可生化性调整,运用“气浮-uASb-水解酸化-微生物固定化反应器“组合工艺对含聚污水进行了生化处理模拟实验。模拟实验分为静态模拟和动态模拟两部分。静态模拟实验中,降解6天后,聚丙烯酰胺降解率达到89.7%。动态模拟试验中,组合工艺处理2天以后,HPAM降解率为 ... -
UBI-QEP study of catalytic reduction desulfuration on cobalt oxide
(PEKING UNIV PRESS, 2002)The catalytic reduction desulfuration on cobalt oxide was investigated using UBI-QEP method. It was found that the reaction followed the Redox mechanism in the reduction process of SO2 with CO at low temperature. First, ... -
UBI-QEP study on purification of vehicle exhaust gas
(SCIENCE CHINA PRESS, 2002)The Vehicle exhaust gas generally contains nitrogen oxides and the fossil fuel which do greatly harm to air environment. Although the use of catalytic converters for the vehicle gas has resulted in considerable progress ... -
Ultra-bright alkylated graphene quantum dots
(Royal Society of Chemistry, 2014 Novem)Highly efficient and stable photoluminescence (PL) are urgently desired for graphene quantum dots (GQDs) to facilitate their prospective applications as optical materials. Here, we report the facile and straightforward ... -
Ultra-low-gold loading Au/CeO2 catalysts for ambient temperature CO oxidation: Effect of preparation conditions on surface composition and activity
(ACADEMIC PRESS INC ELSEVIER SCIENCE, 2010-06)A series of 0.06-0.09 wt% Au/CeO2 catalysts for CO oxidation at ambient temperature were prepared under different preparation conditions and characterized by BET, XRD, XPS, HRTEM and FT-IR techniques. Experiment results ... -
Ultrafast intramolecular charge transfer and internal conversion with tetrafluoro-aminobenzonitriles
(WILEY-V C H VERLAG GMBH, 2005-11)The five 2,3,5,6-tetrafluoro-4-aminobenzonitriles XABN4F with a dimethyl-amino (DMABN4F), diethyl-amino (DEABN4F), azetidinyl (AZABN4F), methyl-amino (MABN4F) or amino (ABN4F) group undergo ultrafast intramolecular charge ... -
Ultrafast Synthesis of Layered Titanate Microspherulite Particles by Electrochemical Spark Discharge Spallation
(WILEY-V C H VERLAG GMBH, 2010-06) -
Ultrafine palladium nanoparticles grown on graphene nanosheets for enhanced electrochemical sensing of hydrogen peroxide
(PERGAMON-ELSEVIER SCIENCE LTD, 2013-May 1)A nonenzymatic electrochemical method was developed for hydrogen peroxide (H2O2) detection using an electrode modified with palladium nanoparticles (PdNPs)-graphene nanosheets (PdNPGNs). Ultrafine PdNPs were homogeneously ... -
Ultralong Rutile TiO2 Nanorod Arrays with Large Surface Area for CdS/CdSe Quantum Dot-sensitized Solar Cells
(PERGAMON-ELSEVIER SCIENCE LTD, 2014-03-01)By using hydrothermal method and post-etched with hydrochloric acid at high temperature, the ultralong TiO2 nanorod arrays (TNARs) for CdS/CdSe co-sensitized solar cells (QDSCs) were fabricated on fluorine-doped tin oxide ... -
Ultrasensitive detection of phenolic compounds based on a spin-labeled luminescent lanthanide complex
(2012)Herein we propose a novel method for ultrasensitive detection of phenolic compounds. This method was developed based on a spin-labeled terbium complex Tb3+/cs124-DTPA-TEMPO (1). This spin-labeled terbium complex is a weakly ... -
Ultrasensitive Pb2+ detection based on fluorescence resonance energy transfer (FRET) between quantum dots and gold nanoparticles
(ROYAL SOC CHEMISTRY, 2009-04)Positively charged CdTe-QDs capped with cysteamine (CA-CdTe-QDs) and negatively charged AuNPs capped with 11-mercaptoundecanoic acid (MUA-AuNPs) have been prepared. They are water-soluble and biocompatible. An assay for ... -
Ultrasensitive SERS Detection of TNT by Imprinting Molecular Recognition Using a New Type of Stable Substrate
(WILEY-V C H VERLAG GMBH, 2010)We report herein a method for the ultra-trace detection of TNT on p-aminothiophenol-functionalized silver nanoparticles coated on silver molybdate nanowires based on surface-enhanced Raman scattering (SERS). The method ... -
Ultrasmall Near-Infrared Non-cadmium Quantum Dots for in vivo Tumor Imaging
(2010)The high tumor uptake of ultrasmall near-infrared quantum dots (QDs) attributed to the enhanced permeability and retention effect is reported. InAs/InP/ZnSe QDs coated by mercaptopropionic acid (MPA) exhibit an emission ... -
Ultrasonic-Assisted Extraction of the Botanical Dietary Supplement Resveratrol and Other Constituents of Polygonum cuspidatum
(J NAT PROD, 2012-10)The roots of Polygonum cuspidatum produce several phenolic compounds, including trans-resveratrol (1), trans-piceid (2), and emodin (3), and are a commercial source of the botanical dietary supplement 1. Ultrasonic-assisted ... -
Ultrasound aided photochemical synthesis of Ag loaded TiO2 nanotube arrays to enhance photocatalytic activity
(ELSEVIER SCIENCE BV, 2009-06)This work presents a novel approach for preparing TiO2 nanotube array photocatalyst loaded with highly dispersed Ag nanoparticles through an ultrasound aided photochemical route. The Ag content loaded on the array was ... -
Ultrasound-assisted synthesis and visible-light-driven photocatalytic activity of Fe-incorporated TiO2 nanotube array photocatalysts
(2012-01-15)Fe incorporated TiO2 nanotube arrays (Fe-TiO2NTs) were prepared by an ultrasound-assisted impregnating-calcination method. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD). ... -
Ultrasound-assisted thiourea leaching of methylmercury from sediments for gas chromatography ion trap mass spectrometric analysis
(MARCEL DEKKER INC, 1998)A simple and selective method was established for the teaching of methylmercury (MeHg) from river sediments. Spiked sediment samples were extracted with 0.50% m/v thiourea aqueous solution by sonication extraction. The ... -
Ultrastable Atomic Copper Nanosheets for Selective Electrochemical Reduction of Carbon Dioxide
(American Association for the Advancement of Science, 2017-09)【Abstract】The electrochemical conversion of CO2 and H2O into syngas using renewably generated electricity is an attractive approach to simultaneously achieve chemical fixation of CO2 and storage of renewable energy. ... -
Ultrathin cellulose nanosheet membranes for superfast separation of oil-in-water nanoemulsions
(Royal Society of Chemistry, 2014 Septe)Oily wastewater is generated in diverse industrial processes, and its treatment has become crucial due to increasing environmental concerns. Herein, novel ultrathin nanoporous membranes of cellulose nanosheets have been ... -
Ultrathin MOF nanosheet assembled highly oriented microporous membrane as an interlayer for lithium-sulfur batteries
(2019-09-20)Abstract(#br)Lithium sulfur (Li-S) batteries are attracting increasing attentions as promising next-generation rechargeable batteries. However, the rapid capacity fading of sulfur cathodes caused by the shuttling of ...