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pollutant abatement using carbon adsorbents

Báo cáo hóa học:

Báo cáo hóa học: " Noxious gas detection using carbon nanotubes with Pd nanoparticles" ppt

Hóa học - Dầu khí

... nanotubes fabricated using carbon nanotube templates Adv Mater 2005, 17:2993 10 Ju S, Lee JM, Jung Y, Lee E, Lee W, Kim S: Highly sensitive hydrogen gas sensors using single-walled carbon nanotubes ... Honda S, Oura K, Katayama M: Highly sensitive detection of carbon monoxide at room temperature using platinum-decorated single-walled carbon nanotubes Appl Phys Expr 2008, 1:014004 13 Suehiro ... sensor array based on metal-decorated carbon nanotubes J Phys Chem B 2006, 110:21014 15 Li J, Lu Y, Ye Q, Delzeit L, Meyyappan M: A gas sensor array using carbon nanotubes and microfabrication...
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Báo cáo hóa học:

Báo cáo hóa học: " Self-propagating high-temperature synthesis of nano-TiCx particles with different shapes by using carbon nano-tube as C source" doc

Hóa học - Dầu khí

... synthesis of carbide nanofibres via templated reactions on carbon nanotubes in molten salt media Carbon 2009, 47:201-208 19 Charlier JC: Defects in carbon nanotubes Acc Chem Res 2002, 35:1063-1069 20 ... thus different carbon sources, i.e., graphite and C black, have great effects on the product morphology and the reaction rate of [Ti] and [C] to form TiCx Generally speaking, the carbon source ... black was used as the carbon source in 50 wt.% Al-Ti-C system, the content of the intermediate phase Al Ti decreases greatly than that of the graphite being used as the carbon source (Figure...
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Báo cáo hóa học:

Báo cáo hóa học: " CdSe/TiO2 core-shell nanoparticles produced in AOT reverse micelles: applications in pollutant photodegradation using visible light" doc

Hóa học - Dầu khí

... Spectroscopic measurements Absorption spectra were recorded using a Shimadzu UV-3101PC UV-Vis-NIR spectrophotometer Fluorescence measurements were performed using a Fluorolog spectrofluorimeter, equipped ... intensity at the cuvette holder was measured using a handheld power meter model 3803 obtained from New Focus A value of 2.4 mW was obtained at 405 nm using an interference filter from Edmund Optics ... “Production of CdSe Quantum Dots using polyselenide in AOT reverse micelles”, submitted) In Figure the absorption, PL and PL excitation (PLE) spectra of CdSe QDs are shown Using an empirical relation...
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Báo cáo y học:

Báo cáo y học: "Equipment review: New techniques for cardiac output measurement – oesophageal Doppler, Fick principle using carbon dioxide, and pulse contour analysis" pot

Báo cáo khoa học

... slope (S) of the carbon dioxide dissociation curve This curve represents the relation between carbon dioxide volumes (used to calculate carbon dioxide content) and partial pressure of carbon dioxide ... ventilation and its carbon dioxide content, whereas the arterial carbon dioxide content (CaCO2) is estimated from end-tidal carbon dioxide (etCO2), with adjustments for the slope of the carbon dioxide ... diffusing through the lungs, including carbon dioxide A new monitor called NICO (Novametrix Medical Systems, Inc., Wallingford, CT, USA) is based on application of the Fick principle to carbon...
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Heterogeneous catalysts for production of chemicals using carbon dioxide as raw material

Heterogeneous catalysts for production of chemicals using carbon dioxide as raw material

Hóa học - Dầu khí

... problems in hydrogenation process Synthesis of cyclic carbonate (ethylene carbonate, propylene carbonate and styrene carbonate) The synthesis of cyclic carbonates by CO2 cycloaddition to epoxides (Fig ... methods [11,36] Cyclic carbonates such as ethylene carbonate (EC) propylene carbonate (PC) and styrene carbonate (SC) have been used as polar solvents, precursors for polycarbonate materials synthesis, ... ZnCl2/PPh3C4H9I a b c Styrene carbonate Ethylene carbonate Propylene carbonate Reaction condition Reaction results Ref Solvent or co-catalyst Pressure (MPa) Temperature (1C) Time (h) Cyclic carbonate selectivity...
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A New Technique Using Headspace Gas Monitoring to Determine Carbon Source Addition in a BNR Process

A New Technique Using Headspace Gas Monitoring to Determine Carbon Source Addition in a BNR Process

Môi trường

... transfer mixing in the headspace The carbon dioxide sensor readings were verified by different volumes of air samples using a Shimadzu TOC-500 inorganic carbon analyzer (samples taken at atm, ... the carbon dioxide profiles were monitored until the reaction completed Unknown concentrations of sodium acetate were tested using the same procedure; their concentrations were estimated using ... state of utilizable carbon substrates involved in the particular BNR reaction It also showed the potential, using the observed CO2 profiles and “E Time” correlations with the carbon source concentrations,...
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Removal of arsenic from synthetic groundwater by adsorption using the combination of laterite and ironmodified activated carbon

Removal of arsenic from synthetic groundwater by adsorption using the combination of laterite and ironmodified activated carbon

Môi trường

... column tests (RSSCT) results, ironpreloaded carbon could get over 200 times longer bed life than non-modified carbon Although iron-modified activated carbon (AC-Fe) is known as a good adsorbent, ... the adsorption column for removal of arsenic from synthetic groundwater using sequential combination of LA and AC-Fe as adsorbents The effect of LA/AC-Fe ratio, flow rate, initial arsenic concentration ... LA/AC-Fe ratio, the value of V/WACFe (V, the volume of drinkable water produced from the start using adsorbents until breakthrough / WACFe, the weight of AC-Fe in the column) was calculated and...
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Removal of arsenic from simulated groundwater by adsorption using iron-modified rice husk carbon

Removal of arsenic from simulated groundwater by adsorption using iron-modified rice husk carbon

Môi trường

... husk carbon and its activated form was lesser by approximately 4.8-5.5 times as compared to that of the calcium-modified rice husk carbon (Mondal et al., 2007b) Since the untreated rice husk carbon ... to develop a new adsorbent - iron-modified rice husk carbon (RH-Fe)which was prepared from an available, cheap source of carbon (rice husk carbon) and the most effective agent (iron) for the removal ... adsorption technique where appropriate and readily available adsorbents are used Studies on the removal of arsenic from groundwater using rice husk (an agricultural waste which is a byproduct...
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Screening of PHA-Producing Bacteria Using Biodiesel- Derived Waste Glycerol as a Sole Carbon Source

Screening of PHA-Producing Bacteria Using Biodiesel- Derived Waste Glycerol as a Sole Carbon Source

Môi trường

... RESULTS AND DISCUSSION Screening of the potential source of PHA-producing bacteria using waste glycerol as carbon source In order to screen the potential source of PHA-producer from four kinds ... isolate is capable of using FFA or FAME which might reside in waste glycerol for polymer biosynthesis Compared to PG cultivation, the medium contained only one kind of carbon source which must ... PHA production cost could be significantly reduced by using WG as the substrate as compared to glucose The PHA production process efficiency using AIK7 isolate is low compared to a well-developed...
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Treatment of semi-aerobic landfill leachate using durian peel-based activated carbon adsorption- Optimization of preparation conditions

Treatment of semi-aerobic landfill leachate using durian peel-based activated carbon adsorption- Optimization of preparation conditions

Sinh học

... and 43% by using powdered activated carbon augmented activated sludge in landfill leachate Halim et al [7] studied a comparison study of ammonia and COD adsorption on zeolite, activated carbon and ... Studies of leachate by activated carbon adsorption have been reported by various authors [10, 12-15] Activated carbon is considered as one of the most effective adsorbents, especially for substances ... of the activated carbon preparation variables 2.6 Characterization of DPAC The surface area, pore volume and average pore diameter of the DP activated carbon were determined by using Autosorb AS...
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Tài liệu ALLOCATION TO REPRODUCTION IN A HAWKMOTH: A QUANTITATIVE ANALYSIS USING STABLE CARBON ISOTOPES docx

Tài liệu ALLOCATION TO REPRODUCTION IN A HAWKMOTH: A QUANTITATIVE ANALYSIS USING STABLE CARBON ISOTOPES docx

Sức khỏe phụ nữ

... calculated using the following equation: egg ␦13C ϭ p ϫ (␦13C diet ϩ fa ) ϩ (1 Ϫ p) ϫ (␦13C0), using the values for fa estimated by the carbon flow model (Fig 4, Table 3) Incorporation of nectar carbon ... the carbon in eggs after several days of adult nectar feeding DIANE M O’BRIEN ET AL 2828 Ecology, Vol 81, No 10 FIG Two-compartment carbon flow model suggested by patterns of egg ␦13C One carbon ... two-compartment model of carbon flow into eggs (Fig 4) One carbon pool mixes with adult diet, accounting for the exponential equilibration dynamics observed The other carbon pool does not mix...
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Tài liệu Báo cáo khoa học: Metabolic flux profiling of Escherichia coli mutants in central carbon metabolism using GC-MS docx

Tài liệu Báo cáo khoa học: Metabolic flux profiling of Escherichia coli mutants in central carbon metabolism using GC-MS docx

Báo cáo khoa học

... in the carbon skeleton of the amino-acid fragment that were incorporated from naturally or artificially 13C-labeled substrates To obtain the exclusive mass isotope distribution of the carbon skeleton, ... squares fit to all MDVAA using the MATLAB function lsqnonlin with the additional constraint that the sum of their element equals MDV of substrate fragments A fragment with n carbon atoms of a mixture ... intact five carbon skeleton from a source molecule of glucose, or via the transketolase reaction, which cleaves between C3–C4 Additionally, P5P may also originate from E4P and a one carbon unit...
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development of an ozone gas sensor using single - walled carbon nanotubes

development of an ozone gas sensor using single - walled carbon nanotubes

Vật lý

... Development of carbon nanotube-based sensors—a review, IEEE Sens J (2) (2007) 266–284 [2] W.S Cho, S.I Moon, Y.D Lee, Y.H Lee, J.H Park, B.K Ju, Multiwall carbon nanotube gas sensor fabricated using thermomechanical ... adsorption on carbon nanotubes: experiment and theory, J Chem Phys 119 (20) (2003) 10904–10910 [4] M.D Ellison, M.J Crotty, D.H Koh, R.L Spary, K.E Tate, Adsorption of NH3 and NO2 on single-walled carbon ... Eriksson, Effect of ozone oxidation on single-walled carbon nanotubes, J Phys Chem B 110 (2006) 7113–7118 J Li, Y Lu, Q Ye, M Cinke, J Han, M Meyyappan, Carbon nanotube sensors for gas and organic vapor...
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extraction of liquid crystals from flat panel display devices using both liquid and supercritical carbon dioxide

extraction of liquid crystals from flat panel display devices using both liquid and supercritical carbon dioxide

Vật lý

... Demonstration of the disassembly of a defunct LCD Carbon dioxide extraction was carried out using a Thar Technologies SFE-500F-2-FMC System and liquid withdrawal carbon dioxide (99.9 %) The extraction vessel ... potential to fractionate commercially available liquid crystal mixtures Following from this the first carbon dioxide extractions of defunct LCDs was demonstrated at the University of York, resulting ... are not viewed as a “sustainable” long term solution to the problem In recent years supercritical carbon dioxide (ScCO ) has proven to be an excellent environmentally benign solvent for extraction...
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Báo cáo hóa học:

Báo cáo hóa học: " Graphitic carbon growth on crystalline and amorphous oxide substrates using molecular beam epitaxy" pot

Hóa học - Dầu khí

... respectively Conclusions In summary, we have grown graphitic carbon on crystalline and amorphous oxides by using carbon MBE Notably, the graphitic carbons on amorphous SiO2 and on glass show a relatively ... graphitic carbon can be fabricated Considering the variety of oxides, the quality of graphitic carbon can be improved much as the search for suitable substrates is continued Now that the carbon ... coefficient of carbon to the substrate and/or the diffusion constant of carbon on the surface, the optimum growth temperature may depend on the substrate Further experiments of carbon growth on...
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Báo cáo hóa học:

Báo cáo hóa học: "Nanopatterning on silicon surface using atomic force microscopy with diamond-like carbon (DLC)-coated Si probe" pptx

Hóa học - Dầu khí

... surface using scanning probe microscopy: influence of scanning parameters on groove size Jpn J Appl Phys 2008, 47:712-714 23 Tseng AA: A comparison study of scratch and wear properties using atomic ... doi:10.1186/1556-276X-6-518 Cite this article as: Jiang et al.: Nanopatterning on silicon surface using atomic force microscopy with diamond-like carbon (DLC)-coated Si probe Nanoscale Research Letters 2011 6:518 Submit ... 2011, 6:518 http://www.nanoscalereslett.com/content/6/1/518 scratch were measured in contact mode using a Si3N4 tip, which has a low spring constant of about 0.02 N/m to avoid additional damage...
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Báo cáo hóa học:

Báo cáo hóa học: " Fabrication of functional micro- and nanoneedle electrodes using a carbon nanotube template and electrodeposition" ppt

Hóa học - Dầu khí

... the nanoneedle fabrication process (a) A carbon nanotube nanoneedle using dielectrophoresis and (b) a functional material-coated micro- or nanoneedle using electrodeposition An et al Nanoscale ... dispersive spectroscopy (EDS) spectrum showed that carbon and gold are only detected Page of Figure SEM image of the Au coated carbon nanotube nanoneedle (a) Carbon nanotube nanoneedle before Au nanoparticle ... Lazareck AD, Xu JM: Carbon nanotube probes for single-cell experimentation and assays Appl Phys Lett 2005, 87:173901 Chen X, Kis A, Zettl A, Bertozzi CR: A cell nanoinjector based on carbon nanotubes...
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Báo cáo hóa học:

Báo cáo hóa học: " Studying the local character of Raman features of single-walled carbon nanotubes along a bundle using TERS" potx

Hóa học - Dầu khí

... Imaging of Excitons in Single-Walled Carbon Nanotubes Nano Lett 2005, 5:2310 11 Roy D, Williams C: High resolution Raman imaging of single wall carbon nanotubes using electrochemically etched gold ... semiconducting tubes (Table 2) Our experimental work using TERS enabled us to observe more G - -frequency modes than would have been possible by using conventional Raman spectroscopy This allows ... more the potential and the perspectives opened up by using the TERS technique in spectroscopically investigating nanoscaled materials Conclusions Using TERS we have probed the variation of the Raman...
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Báo cáo hóa học:

Báo cáo hóa học: " Scalable synthesis of aligned carbon nanotubes bundles using green natural precursor: neem oil" doc

Hóa học - Dầu khí

... form of carbon soot was taken out from quartz tube The schematic experimental setup for synthesis of aligned CNTs is given in Figure The as-grown carbon materials were characterized using scanning ... CNTs bundles is low because at this temperature carbon source decomposes partially leading to the formation of carbonaceous materials (e.g., amorphous carbon, etc.) On the other hand, the yield of ... architectures of aligned carbon nanotubes by an injection chemical vapour deposition method Carbon 2003, 41:359 Sharon M, Hsu WK, Kroto HW, Walton DRM: Camphor-based carbon nanotubes as an anode...
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Báo cáo hóa học:

Báo cáo hóa học: " Frequency Shift of Carbon-Nanotube-Based Mass Sensor Using Nonlocal Elasticity Theory" ppt

Hóa học - Dầu khí

... Conclusions In this Letter, the frequency shift and sensitivity of carbonnanotube-based sensor with an attached mass was studied using nonlocal elasticity theory The relationship equation between ... O’Connell (ed.), Carbon Nanotubes: Properties and Applications (CRC Press, Boca Raton, 2006) M Yudasaka, S Iijima, V.H Crespi, Topics Appl Phys 111, 605 (2008) A.P Ottenhouse (ed.), Carbon Nanotubes: ... effects of nonlocal parameter, e0a/L, attached mass and its location, c/L, on the frequency shift of carbon- nanotube-based mass sensor According to the equation, the relationship between the dimensionless...
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