This study deals with cleaning of particle-loaded filter media by means of continuous and pulsed flows of water.
In this work, a method was developed for preparation and cleaning of arsenopyrite particles with size range of 15-250 μm.
Such activation results in enhancement of activity towards methanol electrooxidation, due to additional cleaning of the particles by oxidation of the residual surfactant by electrogenerated hydroxyl radicals.
Besides, nanostars are usually produced with polyvinylpyrrolidone (PVP) in dimethylformamide (DMF), thus demanding an extensive cleaning of the particles before the encoding process (PVP is retained at the gold surface after the synthesis, hampering the diffusion and adsorption of the SERS probes at the particle).
Three types of cleaning experiments of particles on the silicon wafer and from the narrow spaces between the electrodes with the distance of 2 and 100 μm were carried out, respectively.
Micro brushes based on CNTs can be applied in many fields, such as the cleaning of the nanoscale particles on the integrated circuit, nanofilter to clean air and water and to kill bacteria, and selective adsorption to remove the organic matter and heavy metal ions in solution and the environment [27 29].
This is possible due to the effect of surface "cleaning" of the filler particles (namely due to the redistribution of the relative intensities of the bands between the carboxyl, ketone, lactone, and carbonyl groups).
SEM images before (a) and after (b-f) cleaning of 10-nm Al2O3 particles on Si surface using pure CO2 BPs generated with original throat diameter.
SEM images before (a) and after (b-f) cleaning of 10-nm Al2O3 particles on Si surface using 1 1 CO2/He BPs generated with 1/3 throat diameter.
SEM images before (a) and after (b-f) cleaning of 10-nm Al2O3 particles on Si surface using pure CO2 BPs generated with 1/3 throat diameter.
SEM images after cleaning of 10-nm Al2O3 particles on Si surface using (a) pure CO2 at 5 bar, (b) 1 1 CO2/He at 10 bar, (c) 1 4 CO2/He at 25 bar, and (d) 1 9 CO2/He at 50 bar with 1/3 throat diameter.
