Porous Mn3[Co(CN)6]2·nH2O nanocubes as a rapid organic dyes adsorption material

RSC Advances ◽  
2012 ◽  
Vol 2 (25) ◽  
pp. 9614 ◽  
Author(s):  
Huan Pang ◽  
Weiqiang Wang ◽  
Zhenzhen Yan ◽  
Hang Zhang ◽  
Xuexue Li ◽  
...  
Keyword(s):  
Organic Dyes ◽  
Dyes Adsorption ◽  
Organic Dyes Adsorption

Pore-forming mechanism of granular red mud by microwave activation and its application in organic dyes adsorption from aqueous solution

2018 ◽  
Vol 5 (8) ◽  
pp. 085510 ◽  
Author(s):  
Thiquynhxuan Le ◽  
Hanrui Wang ◽  
Sivasankar Koppala ◽  
Shaohua Ju ◽  
Qi Wang ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Red Mud ◽  
Organic Dyes ◽  
Microwave Activation ◽  
Forming Mechanism ◽  
Dyes Adsorption ◽  
Organic Dyes Adsorption

scholarly journals Synthesis and characterization of nanostructured CeO2 with dyes adsorption property

2014 ◽  
Vol 8 (1) ◽  
pp. 39-46 ◽  
Author(s):  
Oman Zuas ◽  
Haznan Abimanyu ◽  
Widayanti Wibowo
Keyword(s):  
Aqueous Solution ◽  
Organic Dyes ◽  
Adsorption Property ◽  
Average Diameter ◽  
Precipitation Method ◽  
Face Centered Cubic ◽  
Experimental Conditions ◽  
Face Centered ◽  
Fcc Phase ◽  
Dyes Adsorption

The nanostructured cerium dioxide (CeO2) has been successfully fabricated using a simple precipitation method. Its characteristics were evaluated using TG-DTA, DR-UV-Vis, XRD, FTIR and TEM. The results showed that the nanostructured CeO2 has high purity and good crystalline nature, with face centered cubic (fcc) phase and the average diameter of CeO2 single crystal about 14 nm. Performance evaluation of the synthesized CeO2 samples showed that the nanostructured CeO2 has a strong adsorption toward acid orange-10 (AO-10) and congo red (CR) in aqueous solution. Under given experimental conditions (dye concentration of 15 mg/l, adsorbent dosage of 1 g/l, reaction temperature of 30 ? 1?C), it was estimated that the adsorption equilibrium for AO-10 and CR occurred at 60 min and 90 min of reaction time, respectively, with total removal of 96.82% for AO-10 dye and 93.55% for CR dye. The results suggested that the CeO2 nanopowder could be potentially used as an efficient adsorbent for the removal of synthetic organic dyes in aqueous solution and may address for future concern in the area.

Thermodynamics of Organic Dyes Adsorption onto Thermal Modified Rectorite

2012 ◽  
Vol 463-464 ◽  
pp. 194-197
Author(s):  
Jing Yan Song ◽  
Ling Rong He
Keyword(s):  
Free Energy ◽  
Gibbs Free Energy ◽  
Organic Dyes ◽  
X Ray Diffraction ◽  
Adsorption Interaction ◽  
Equilibrium Data ◽  
Different Temperatures ◽  
Hoff Equation ◽  
Dyes Adsorption ◽  
Langmuir And Freundlich Equations

Adsorption behavior of Rhodamine B (RhB) onto thermal modified rectorite (TM-R) has been thermodynamically investigated. The thermal modified rectorite prepared at different temperatures was characterized by X-ray diffraction (XRD) and Brunauer-Emmett-Teller (BET). The analysis of the isotherm equilibrium data using the Langmuir and Freundlich equations by linear methods showed that the data fitted better with Freundlich model than the Langmuir model. Thermodynamic parameters were calculated based on Van’t Hoff equation. The average change of standard adsorption heat of RhB was 88.96 kJ/mol. The adsorption Gibbs free energy changes are in the range of -26.88～-34.52 kJ/mol, The negative of adsorption Gibbs free energy changes in all cases are indicative of the spontaneous nature of the adsorption interaction, and the values of adsorption entropy changes are positive.

Utilization of a pyrrole derivative based antimicrobial functionality impregnated onto CaO/g-C3N4 for dyes adsorption

RSC Advances ◽  
2016 ◽  
Vol 6 (92) ◽  
pp. 89367-89379 ◽  
Author(s):  
Sherif A. Younis ◽  
Ahmed Abd-Elaziz ◽  
Ahmed I. Hashem
Keyword(s):  
Organic Dyes ◽  
Wastewater Remediation ◽  
Pyrrole Derivative ◽  
Dyes Adsorption

A novel functionalization of CaO/g-C3N4 based nanocomposite using 4,5-diphenyl-2-thioxo-2,5-dihydro-1H-pyrrole-3-cabonitrile (P3C@CaO–HCN) was fabricated for wastewater remediation from organic dyes and microbial pollutants.

Quantum Dot Bioconjugates as Energy Donors in Fluorescence Resonance Energy Transfer Assays

2003 ◽  
Vol 773 ◽  
Author(s):  
Aaron R. Clapp ◽  
Igor L. Medintz ◽  
J. Matthew Mauro ◽  
Hedi Mattoussi
Keyword(s):  
Energy Transfer ◽  
Quantum Dot ◽  
Organic Dyes ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Genetically Engineered ◽  
Molar Ratio ◽  
Binding Assays ◽  
Specific Sequence ◽  
Donor Acceptor

AbstractLuminescent CdSe-ZnS core-shell quantum dot (QD) bioconjugates were used as energy donors in fluorescent resonance energy transfer (FRET) binding assays. The QDs were coated with saturating amounts of genetically engineered maltose binding protein (MBP) using a noncovalent immobilization process, and Cy3 organic dyes covalently attached at a specific sequence to MBP were used as energy acceptor molecules. Energy transfer efficiency was measured as a function of the MBP-Cy3/QD molar ratio for two different donor fluorescence emissions (different QD core sizes). Apparent donor-acceptor distances were determined from these FRET studies, and the measured distances are consistent with QD-protein conjugate dimensions previously determined from structural studies.

Semiconductor Quantum Dots for Multicolor Fluorescence Imaging and Spectroscopy of Single Cancer Cells

2003 ◽  
Vol 773 ◽  
Author(s):  
Xiaohu Gao ◽  
Shuming Nie ◽  
Wallace H. Coulter
Keyword(s):  
Quantum Dots ◽  
Cancer Cells ◽  
Fluorescence Imaging ◽  
Organic Dyes ◽  
Fluorescent Proteins ◽  
Single Cells ◽  
Quantitative Imaging ◽  
Semiconductor Quantum Dots ◽  
Single Cancer ◽  
Imaging And Spectroscopy

AbstractLuminescent quantum dots (QDs) are emerging as a new class of biological labels with unique properties and applications that are not available from traditional organic dyes and fluorescent proteins. Here we report new developments in using semiconductor quantum dots for quantitative imaging and spectroscopy of single cancer cells. We show that both live and fixed cells can be labeled with multicolor QDs, and that single cells can be analyzed by fluorescence imaging and wavelength-resolved spectroscopy. These results raise new possibilities in cancer imaging, molecular profiling, and disease staging.

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