Synthesis and Characterization of γ-CD-Modified TiO2 Nanoparticles and Its Adsorption Performance for Different Types of Organic Dyes

2018 ◽  
Vol 64 (1) ◽  
pp. 135-149 ◽  
Author(s):  
Seyed Hossein Mousavi ◽  
Fatemeh Shokoofehpoor ◽  
Asadollah Mohammadi
Keyword(s):  
Tio2 Nanoparticles ◽  
Organic Dyes ◽  
Synthesis And Characterization ◽  
Adsorption Performance ◽  
Different Types

Synthesis and characterization of hierarchical γ-AlOOH and γ-Al2O3 microspheres with high adsorption performance for organic dyes

RSC Advances ◽  
2016 ◽  
Vol 6 (92) ◽  
pp. 89699-89707 ◽  
Author(s):  
Zhongfu Li ◽  
Yi Du ◽  
Shiying Zhang ◽  
Zhongtao Chen ◽  
Kai Yang ◽  
...  
Keyword(s):  
Congo Red ◽  
Organic Dyes ◽  
Synthesis And Characterization ◽  
Heating Process ◽  
High Adsorption ◽  
Adsorption Performance

A segmented heating process with CTAB as a surfactant and pore forming agent has been successfully developed to synthesize hierarchical γ-AlOOH and γ-Al2O3 microspheres with ultra-excellent adsorption performance for Congo red.

scholarly journals Synthesis and Characterization of Clay Polymer Nanocomposites of P(4VP-co-AAm) and Their Application for the Removal of Atrazine

Polymers ◽  
2019 ◽  
Vol 11 (4) ◽  
pp. 721 ◽  
Author(s):  
Jorge A. Ramírez-Gómez ◽  
Javier Illescas ◽  
María del Carmen Díaz-Nava ◽  
Claudia Muro-Urista ◽  
Sonia Martínez-Gallegos ◽  
...  
Keyword(s):  
Polymer Nanocomposites ◽  
Nanocomposite Materials ◽  
Synthesis And Characterization ◽  
Cross Linking ◽  
X Ray Diffraction ◽  
Numerous Species ◽  
X Ray ◽  
Different Types ◽  
Synthesized Materials

Atrazine (ATZ) is an herbicide which is applied to the soil, and its mechanism of action involves the inhibition of photosynthesis. One of its main functions is to control the appearance of weeds in crops, primarily in corn, sorghum, sugar cane, and wheat; however, it is very toxic for numerous species, including humans. Therefore, this work deals with the adsorption of ATZ from aqueous solutions using nanocomposite materials, synthesized with two different types of organo-modified clays. Those were obtained by the free radical polymerization of 4-vinylpyridine (4VP) and acrylamide (AAm) in different stoichiometric ratios, using tetrabutylphosphonium persulfate (TBPPS) as a radical initiator and N,N′-methylenebisacrylamide (BIS) as cross-linking agent. The structural, morphological, and textural characteristics of clays, copolymers, and nanocomposites were determined through different analytical and instrumental techniques, i.e., X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), and thermogravimetric analysis (TGA). Adsorption kinetics experiments of ATZ were determined with the modified and synthesized materials, and the effect of the ratio between 4VP and AAm moieties on the removal capacities of the obtained nanocomposites was evaluated. Finally, from these sets of experiments, it was demonstrated that the synthesized nanocomposites with higher molar fractions of 4VP obtained the highest removal percentages of ATZ.

scholarly journals Synthesis and characterization of polyaniline nanofiber/TiO2 nanoparticles hybrids

2011 ◽  
Vol 119 (1389) ◽  
pp. 342-345 ◽  
Author(s):  
Niki PRASTOMO ◽  
Mohamad AYAD ◽  
Go KAWAMURA ◽  
Atsunori MATSUDA
Keyword(s):  
Tio2 Nanoparticles ◽  
Synthesis And Characterization ◽  
Polyaniline Nanofiber

The design, synthesis, and characterization of D-π-A-π-A type organic dyes as sensitizers for dye-sensitized solar cells (DSSCs)

2014 ◽  
Vol 55 (21) ◽  
pp. 3244-3248 ◽  
Author(s):  
Tanika Khanasa ◽  
Narid Prachumrak ◽  
Palita Kochapradist ◽  
Supawadee Namuangruk ◽  
Tinnagon Keawin ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Dyes ◽  
Dye Sensitized Solar Cells ◽  
Synthesis And Characterization ◽  
Design Synthesis ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

scholarly journals A Review on Synthesis and Characterization of Biomass-Derived Carbons for Adsorption of Emerging Contaminants from Water

2018 ◽  
Author(s):  
Jorge Bedia ◽  
Manuel Peñas-Garzón ◽  
Almudena Goméz-Avilés ◽  
Juan José Rodríguez ◽  
Carolina Belver
Keyword(s):  
Emerging Contaminants ◽  
Activated Carbons ◽  
Synthesis And Characterization ◽  
Different Types ◽  
Adsorption Processes

This review analyzes the synthesis and characterization of biomass-derived carbons for adsorption of emerging contaminants from water. The study begins with the definition and different types of emerging contaminants more often founded in water streams and the different technologies available for their removal including adsorption. It also describes the biomass sources that could be used for the synthesis of biochars and activated carbons. The characterization of the adsorbents and the different approaches that could be employed for the study of the adsorption processes are also detailed. Finally, the work reviews in detail some studies of the literature focused on the adsorption of emerging contaminants on biochars and activated carbons synthesized from biomass precursors.

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