A5024079853- Adsorption and biosorption for pollutant removal
- Extraction and Separation Processes
- Fluoride Effects and Removal
- Nanopore and Nanochannel Transport Studies
- Analytical chemistry methods development
- Graphene research and applications
- Conducting polymers and applications
- Carbon Nanotubes in Composites
- Plant Ecology and Soil Science
- Recycling and Waste Management Techniques
- Heavy metals in environment
- Polymer Surface Interaction Studies
- Invertebrate Taxonomy and Ecology
- Environmental Conservation and Management
- Nanomaterials for catalytic reactions
- Constructed Wetlands for Wastewater Treatment
- Advanced Polymer Synthesis and Characterization
- Pharmaceutical and Antibiotic Environmental Impacts
- Advanced Cellulose Research Studies
- Electrochemical sensors and biosensors
- Agroforestry and silvopastoral systems
- Silicone and Siloxane Chemistry
- Phosphorus and nutrient management
- Rabbits: Nutrition, Reproduction, Health
- Polymer-Based Agricultural Enhancements
Autonomous University of San Luis Potosí
2015-2024
Instituto de Catálisis y Petroleoquímica
2021
Institute of Catalysis and Petrochemistry
2021
Weatherford College
2021
John Wiley & Sons (Germany)
2013
Robert Bosch (India)
2013
Institute for Scientific and Technological Research
2008-2011
Abstract The potential use of spent coffee ground (SCG) for the removal copper has been investigated as a low‐cost adsorbent biosorption heavy metals. Adsorption batch experiments were conducted to determine isotherms and kinetics. equilibrium data found fit well Freundlich model an experimental maximum capacity ions 0.214 mmol/g was achieved. kinetics SCG studied at different adsorbate concentrations (0.1–1.0 mM) stirring speeds (100–400/min). results showed increase in ion uptake with...
Today, fluoride represents one of the most often found, and resilient, pollutants threatening health millions people around globe. The use biosorbents is an interesting alternative technique for removal fluorine-ions. Chitosan a natural biopolymer with surface groups capable removing fluorine; however, their lack mechanical stability restricts its application. In present work, we proposed that such limitations can be overcame by forming composite zeolite (ZCC). A proper zeolite-to-chitosan...
Experimental data for the equilibrium adsorption of pentachlorophenol (PCP) onto activated carbon fibers (ACFs) in form felt (AC-felt) and cloth (AC-cloth) were obtained a batch adsorber. The effect pH on capacity was investigated by determining isotherm range from 6 to 12. It found that reduced upon increasing speciation diagram PCP revealed adsorbed ACFs as pentachlorophenolate ion. diminished slightly temperature 15 35 °C. AC-felt due dispersion forces caused π−π interactions. These...
Abstract The ion‐exchange equilibrium of Pb(II) and Cd(II) on clinoptilolite from different deposits was studied in this work. Langmuir isotherm fitted the data both ions better than Freundlich isotherm. capacity natural zeolite to exchange increased, augmenting solution pH. This behaviour attributed interactions between surface charge zeolite. Moreover, increased when temperature raised 15 35 °C. tendency explained by assuming that ion an endothermic reaction. selectivity for metal cations...
A composite was obtained from a-cellulose coated with magnetite nanoparticles and conducting polypyrrole (PPy).The were synthesized by the coprecipitation method FeCl 2 3 salts.The pyrrole polymerization in presence of a mixture nanoparticles.The characterized FTIR UV/Vis-NIR spectroscopies, scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), thermogravimetric analyses (TGA).XRD analysis demonstrated that typical cubic structures Fe O 4...
Abstract The effects of surface properties and solution pH temperature on the adsorption cadmium(II) onto activated carbon fiber cloth (ACC) made from polyacrylonitrile (PAN) were investigated in this work. ACC was oxidized with HNO3 concentration acidic sites increased during oxidation whereas that basic ones diminished. capacity higher than without because contained greater sites. It found maximum took place at 8 near 22 times, augmenting 2 to 8. diminished average twofold, increasing 15...
A composite was obtained from cellulosic agricultural waste material ( Sorghum vulgare ) coated with conducting polypyrrole by in situ polymerization using potassium persulfate as chemical oxidant. The characterized Raman spectroscopy, FTIR scanning electron microscopy (SEM), and cyclic voltammetry. Aqueous adsorption experiments of methylene blue dye onto the materials at different pH values were conducted. results showed that this is an efficient sorbent for removal. mechanism well...