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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Adsorption Batch Studies on the Removal of Pb(II) Using Maize Tassel Based Activated Carbon
TL;DR: In this article, Maize tassel was used as the precursor for making activated carbon for the adsorption of Pb(II) ions from aqueous solutions.
Journal ArticleDOI
Citric acid loading for MoS2-based catalysts supported on SBA-15. New catalytic materials with high hydrogenolysis ability in hydrodesulfurization
Diego Valencia,Tatiana Klimova +1 more
TL;DR: In this paper, the effect of citric acid loading in NiMo sulfided catalysts supported on SBA-15 on their behavior in hydrodesulfurization (HDS) was investigated.
Journal ArticleDOI
Synthesis and characterization of Ag3PO4 immobilized in bentonite for the sunlight-driven degradation of Orange II
TL;DR: In this article, a method for intercalating silver salt into bentonite interlayers is described, and the very fine Ag3PO4 crystalline grains (less than 0.45 nm) were obtained in the interlayer of bentonite.
Journal ArticleDOI
Dissolution and Delignification of Bamboo Biomass Using Amino Acid-Based Ionic Liquid
Nawshad Muhammad,Zakaria Man,Mohamad Azmi Bustam,M.I. Abdul Mutalib,Cecilia Devi Wilfred,Sikander Rafiq +5 more
TL;DR: The regenerated bamboo biomass was found to have a more homogenous macrostructure, which indicates that the crystalline form and structure of its cellulose has changed from type �’ to type ΙΙ during the dissolution and regeneration process.
Journal ArticleDOI
Bone char as a green sorbent for removing health threatening fluoride from drinking water.
TL;DR: It appears that surface properties, and conditions of the bone char production such as temperature and residence time play an important role in designing the optimal fluoride removal process.
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.
Book
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
Journal ArticleDOI
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.