A5047116089- Adsorption and biosorption for pollutant removal
- Electrochemical sensors and biosensors
- Nanomaterials for catalytic reactions
- Analytical Chemistry and Sensors
- Analytical chemistry methods development
- Electrochemical Analysis and Applications
- Phosphorus and nutrient management
- Dye analysis and toxicity
- Conducting polymers and applications
- Mesoporous Materials and Catalysis
- Clay minerals and soil interactions
- Water Quality Monitoring and Analysis
- Extraction and Separation Processes
- Heavy metals in environment
- Gas Sensing Nanomaterials and Sensors
- Thermochemical Biomass Conversion Processes
- TiO2 Photocatalysis and Solar Cells
- Concrete Corrosion and Durability
- Agricultural and Food Sciences
- Ionic liquids properties and applications
- Pigment Synthesis and Properties
- Porphyrin and Phthalocyanine Chemistry
- Enzyme Catalysis and Immobilization
- Pesticide and Herbicide Environmental Studies
- Biotin and Related Studies
Universidade Federal do Rio Grande do Sul
2014-2024
Instituto de Saúde
2019
Pontifical Catholic University of Rio de Janeiro
2019
Universidade Federal do Pampa
2009-2013
National Laboratory of Energy and Geology
2010
Universidade Federal de Alagoas
2009
Universidade Estadual de Campinas (UNICAMP)
2002-2003
Ambiente Italia (Italy)
2002
Brazilian Agricultural Research Corporation
2002
This study evaluated the feasibility of removing Alizarin Red S dye (ARS) from aqueous solutions, using nanoadsorbents such as single and multiwalled carbon nanotubes (SWCNT MWCNT, respectively). The effect pH, shaking time, temperature on adsorption was studied. pH 2.0 observed to show optimum removal for both nanotubes. equilibrium time (298–318 K) fixed at 65 100 min SWCNT respectively. kinetics calculated pseudo-first-order, pseudo-second-order, general-order equations. calculations...
First-row transition metals (Co, Ni, Cu and Zn) were successfully used in the preparation of activated carbons from wood biomass via microwave-assisted irradiation. Physical-chemical properties produced materials (MWAC) studied by nitrogen adsorption-desorption curves, SEM, FTIR, UV-vis DRS synchronous fluorescence spectroscopy, CHN elemental analysis, TGA/DTG, pHzpc, hydrophobic properties, total acidity basicity groups. Results showed that bound different amounts with surface functional...
Activated carbons (ACs) prepared from tucumã seed (Astrocaryum aculeatum) were used for 2-nitrophenol removal aqueous solutions. The ACs characterized by elemental analysis, FTIR, N2 adsorption/desorption isotherms, TGA, hydrophobicity/hydrophilicity balance, and total of acidic basic groups. showed to have hydrophilic surfaces they presented high specific surface areas (up 1318 m2 g-1). In batch optimization studies, maximum was obtained at pH 7, contact time 30 min, adsorbent dosage 1.5...
Abstract Activated carbon materials were prepared from the Brazilian pine‐fruit shell ( Araucaria angustifolia ) by chemically activated (CAC) and physically (CPAC), tested as adsorbents for removal of brilliant green (BG) dye aqueous effluents. The mixed activation process leads to increases in specific surface area, average porous volume, diameter adsorbent CPAC when compared CAC. effects shaking time, dosage pH on adsorption capacity studied. BG uptake was favorable at values ranging 2.0...
This study presents removal of crystal violet (CV) dye from aqueous solutions using solid food waste, avocado kernel seed powder (ASP). ASP was used in the native form for biosorption study. The effects different experimental conditions such as pH solution, initial concentration, contact time, and temperature were investigated batch Maximum CV (95.9 mg g−1) by (100 mg) observed at 7 55°C. kinetics data evaluated pseudo-first-order, pseudo-second-order, general-order kinetic adsorption...