The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The kinetics which explained the copper Superfilling by electrodeposition was investigated since the copper electrodeposition became the standard technique for TSV. In order to interpret the bottom-up Superfilling process conveniently and exactly, a numerical model focused on the mass which can make the copper deposition in the via is built. This model only considered the effect of accelerator and...
The kinetics which explained the Copper Super-filling by electrodepostition was investigated since the copper deposition became the standard technique for TSV. A simple numerical model is built to explain the copper deposition process. Consider with the effect of the accelerator, a linear equation is built to explain the relationship between the exchange current density and the coverage of accelerator...
Porous magnetic chitosan microspheres were prepared with reversed-phase suspension methodology using epichlorohydrin as cross-linking reagent and using CaCO3 as porogen for adsorption copper (II). Scanning electron microscopy (SEM) and Transmission electron microscopy (TEM) confirmed that the microsphere was homogeneous and highly porous. Experiments were performed at different pH of solution, contact...
Activated Carbon is a water treatment adsorbent with a large adsorption capacity, its adsorption capacity will be able to greatly enhance after modified activated. Through the use of before and after the modification of mesoporous activated carbon powder to the heavy metals copper ion adsorption, the effects of different pH, adsorption temperature, balance time, the amount of activated carbon adsorption...
Using the anaerobic granular sludge acted as biosorbent, this paper studied the biosorption and desorption of copper-containing wastewater. The results showed that, granular sludge adsorption rate up to 97.67% and citric acid got best desorption efficiency. The study of kinetics model and thermodynamics isotherm adsorption model showed that Pseudo-second Order kinetic model and Langmuir isothermal...
Adsorption-desorption behavior of copper in Sichuan mine soils was studied using the batch method. The measured copper adsorption data was described by the Langmuir equation and the Freundlich equation respectively. The results indicated that the Freundlich equation was less suitable than the Langmuir equation to describe the adsorption data. In contrast to copper adsorption, the amount as well as...
The effect of solution temperature and the determination of the kinetic parameters of methylene blue (MB) adsorption onto cereal chaff were performed to understand the adsorption mechanism. The pseudo-second order kinetic model was fitted to the experimental data and found it was good to predict the adsorption behavior using nonlinear regressive method, suggesting that the mechanism may be a chemisorption...
The paper investigated the treatment effect of modified rice husk as an adsorbent on wastewater containing Zn(II). Langmuir and Freundlich equations quantified the Zn(II) removal effect of modified rice husk. We analyzed characteristics of adsorption kinetics, the initial pH value, temperature effect on adsorption process, and compared with the regeneration efficiency of adsorbent. The results showed...
The removal of Cu2+ and Cd2+ of aqueous solution by residual sludge from four type sewage treatment plant was investigated. Effect of adsorption time, kinetics and thermodynamics of adsorption was researched. The study indicated that all of the sludge can absorb mono-component Cu2+ or Cd2+ but the sludge from Petrochemical Wastewater plant had deposition rather than adsorption on Cu2+ or Cd2+. The...
Adsorption of Heavy metals from aqueous solutions by industrial waste sludge was investigated. The effect of time and initial concentration solution pH, were studied in batch kinetic experiments. The initial uptake was rapid and equilibrium was achieved within 180 minutes. The data relating to percentage of adsorption at different pH values were fitted into the surface complex model and the overall...
In this study, an isothermal batch experiment was conducted to assess the characteristics of adsorption of Zn and Cd in surface samples of three typical soils from Qingdao City, China. Sorption isotherms were characterized using Linear, Langmuir and Freundlich equations. The results indicated that all the sorption isotherms were well described by the Freundlich and Langmuir equations with high coefficients...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.