对金属Ag改性前后的分子筛进行X射线荧光光谱分析(XRF)表征,结果如表2所示。从表2可以看出,随着离子交换液浓度的增大,交换后分子筛中的Na含量逐渐减小,Ag含量逐渐增大,当离子交换液浓度为0.20 mol·L-1时,交换后分子筛中的Ag2O含量达到18.28%,说明NaY分子筛中部分Na+被Ag+成功交换。 Table 2 Elemental composition...
The authors also studied the kinetic analysis using three adsorption models, namely pseudo-first-order, pseudo-second-order, and Avrami's kinetic models, and results concluded that Avrami's model was the best fit of the experimental data for all adsorbent [8]. The other way to increase ...
6905594Filter apparatus and methods to capture a desired amount of material from a sample suspension for monolayer deposition, analysis or other uses2005-06-14Ferguson210/90 20030220717Water treatment control system2003-11-27Underwood et al.700/282 ...
The performance analysis of these trays is fairly similar to bubble caps, but more so to valve trays, because the tray has the same basic mechanical features. The difference is that bubble caps and valves are replaced by perforations or holes in the tray to allow into, the gas entry to th...
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Mott–Schottky analysis using a mono-frequency capacitance–voltage (C–V) sweep was carried out to investigate the Schottky contacts in the semiconductor devices. The Mott–Schottky plots of the S1–S5 NW samples are created according to the following equation:35 ...
Also, since the CMSC membranes are used in this work as a technology to reduce the carbon footprint, different parameters involving reforming efficiencies, fuel consumptions and CO2emissions are evaluated. In particular, in Eqs. 1–7 the different parameters for a thermodynamic analysis are ...
X-ray diffraction (XRD, Bruker D8 Focus) analysis of cellulose hollow fiber precursors was conducted at 45 kV and 200 mA with 2θ ranging from 5° to 70° at a scan speed of 0.05 s−1 (Cu-Kα radiation, λ = 0.154 nm). The crystallinity index (CrI) of cellulose hollow fiber ...
Sieve trays rely on the flow of vapors through the holes to hold the liquid on the tray thus cannot operate at very low vapor rates. Valve trays are intended to give greater flexibility than sieve trays at a lower cost than bubble-caps. Thus, bubble-cap trays have the widest operating ...