Journal ArticleDOI
Adsorption of Fluoride from Water Solution on Bone Char
Nahum Andrés Medellín-Castillo,Roberto Leyva-Ramos,Raúl Ocampo-Pérez,Ramon F. Garcia De La Cruz,Antonio Aragón-Piña,Jose M. Martinez-Rosales,R.M. Guerrero-Coronado,Laura Fuentes-Rubio +7 more
TLDR
In this article, the effects of solution pH and temperature on the adsorption of fluoride onto bone char made from cattle bones were investigated, and it was found that the maximum adaption took place at pH 3.Abstract:
The effects of solution pH and temperature on the adsorption of fluoride onto bone char made from cattle bones were investigated in this work. It was found that the maximum adsorption took place at pH 3 and the adsorption capacity decreased nearly 20 times augmenting the pH from 3 to 12. This behavior was attributed to the electrostatic interactions between the surface of bone char and the fluoride ions in solution. The adsorption capacity was not influenced by temperature in the range from 15 to 35 °C. A comparison of fluoride adsorption capacities among several adsorbents revealed that the adsorption capacity of the bone char was 2.8 and 36 times greater than those of a commercial activated alumina (F-1) and a commercial activated carbon (F-400). The adsorption capacity is considerably dependent upon the physicochemical properties of the bone char surface and the solution pH.read more
Citations
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Optimal Iterative Learning Fault-Tolerant Guaranteed Cost Control for Batch Processes in the 2D-FM Model
Limin Wang,Weiwei Dong +1 more
TL;DR: In this article, a robust iterative learning reliable guaranteed cost controller (ILRGCC) is proposed for a batch process with actuator failures, and conditions for the existence of the controller are derived in terms of linear matrix inequalities (LMIs), and a convex optimization problem with LMI constraints is formulated to design the optimal guaranteed controller which minimizes the upper bound of the closed-loop system cost.
Journal ArticleDOI
Isotope Effect on Eutectic and Hydrate Melting Temperatures in the Water-THF System
TL;DR: In this article, the effect of isotopic substitution on the eutectic and melting temperatures in the water-tetrahydrofuran (THF) system with THF molar fractions near the stoichiometry of the hydrate phase was studied.
Journal ArticleDOI
Development of Activated Carbon from Cotton Fibre Waste as Potential Mercury Adsorbent: Kinetic and Equilibrium Studies
TL;DR: In this article, the authors attempted to develop the activated carbon of cotton fibre (ACCF) from cotton waste as a high Hg2 activations from cotton fiber, which they used to develop a high-Hg2 activated carbon filter.
Journal ArticleDOI
Assessing breast cancer margins ex vivo using aqueous quantum-dot-molecular probes.
Giang Au,Wan Y. Shih,Wei-Heng Shih,Linette Mejias,Vanlila K. Swami,Kimberly Wasko,Ari D. Brooks +6 more
TL;DR: AQD-Tn mAb probe proved to be sensitive and specific to identify cancer area quantitatively without being affected by the heterogeneity of the tissue and could determine margin status within 30 minutes of tumor excision, indicating its potential as an accurate intraoperative margin assessment method.
Journal ArticleDOI
Liquid Phase Hydrogenation of p -Chloronitrobenzene on Au-Pd/TiO 2 Catalysts: Effects of Reduction Methods
Yu Wen Chen,Der-Shing Lee +1 more
TL;DR: In this article, the effects of palladium addition and reduction methods on Au/TiO2 were investigated and the results showed that even adding very small amount of Pd could enhance activity and selectivity of p-chloroaniline significantly.
References
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Some aspects of the surface chemistry of carbon blacks and other carbons
TL;DR: In this paper, a review of the surface chemistry of carbon blacks and other activated carbons is given, focusing on surface oxides with emphasis on the chemical methods used in the assessment and identification of surface functional groups.
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Process Chemistry for Water and Wastewater Treatment
TL;DR: Process chemistry for water and wastewater treatment as mentioned in this paper, Process Chemistry for Water and Wastewater treatment, Process chemistry for wastewater treatment, and process chemistry for drinking water treatment, کتابخانه دانشگاه علوم پزδکی و خدمات بهداشتی درمانی
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Adsorption kinetics of fluoride on low cost materials
TL;DR: The data suggested that Calcite has been seen as a good adsorbent in fluoride removal and has been patented, but its adsorption capacity is only better than quartz, and the external mass transfer is a very slow and rate-determining step during fluoride removal from the aqueous solution.
Journal ArticleDOI
Adsorption of fluoride from water by amorphous alumina supported on carbon nanotubes
Yanhui Li,Shuguang Wang,Anyuan Cao,Dan Zhao,Dan Zhao,Xianfeng Zhang,Cailu Xu,Zhaokun Luan,Dianbo Ruan,Ji Liang,Dehai Wu,Bingqing Wei +11 more
TL;DR: A new candidate for fluoride adsorption from water, amorphous Al2O3 supported on carbon nanotubes (Al 2O3/CNTs) is reported in this article.
Journal ArticleDOI
Point of zero charge and intrinsic equilibrium constants of activated carbon cloth
TL;DR: In this paper, the surface properties of cellulose-based activated carbon cloth were investigated and the point of zero charge was determined by batch equilibrium method, where the site-binding model was applied to calculate the intrinsic acidity constants.