Results 41 to 50 of about 26,989 (181)

Improvement of Biohydrogen and Usable Chemical Products from Glycerol by Co-Culture of Enterobacter spH1 and Citrobacter freundii H3 Using Different Supports as Surface Immobilization

Fermentation, 2021
Glycerol is a by-product of biodiesel production in a yield of about 10% (w/w). The present study aims to improve the dark fermentation of glycerol by surface immobilization of microorganisms on supports.
Biniam T. Maru, Francisco Lopez, Francesc Medina, Magda Constantí   +3 more
doaj   +1 more source

Development of Biocatalysts Based on Lipase B From Candida antarctica Immobilized on Magnetic Poly(Styrene‐Co‐Divinylbenzene) for Application in Esterification Reactions

Journal of Applied Polymer Science, EarlyView.
Magnetic biocatalysts can be recovered from high‐viscosity reaction media, such as those used in esterification, via magnetic attraction, thereby streamlining the bioprocess and reducing costs. This work builds on prior studies by providing additional data on how particle morphology influences immobilization parameters and by further exploring ...
Sabrina S. Teixeira, Luís A. C. Romero‐Silva, Ezaine C. C. Torquato, Manoel R. da Silva, Marcos A. S. Costa, Evelin A. Manoel, Eliane P. Cipolatti, Luciana C. Costa   +7 more
wiley   +1 more source

Synthesis, characterization and magnetic properties of spider silk coated with maghemite (gamma-Fe2O3) nanoparticles

, 2022
Spider silk-maghemite (SS-gamma-Fe2O3) composite was obtained by simple and fast co-precipitation method at room temperature. The fibers were coated with maghemite nanoparticles with the average size of 25 nm.
Butulija, Svetlana, Prekajski-Đorđević, Marija D., Radulović, Tamara, Prekajski-Đorđević, Marija, Zarubica, Aleksandra R., Branković, Goran, Zarubica, Aleksandra, Spasojević, Vojislav, Matović, Branko, Vojislav Spasojević, Marija Prekajski Đorđević, Svetlana Butulija, Aleksandra Zarubica, Branko Matović, Goran Branković, Tamara Radulović   +15 more
core   +1 more source

XAFS spectrum of Iron(III) oxide (maghemite)

This dataset consists of X-ray absorption fine structure (XAFS) spectra at Fe K-edge of Iron(III) oxide (maghemite) measured at Aichi SR BL5S1, and is a part of XAFS database (MDR XAFS DB, https://doi.org/10.48505/nims.1447) as a collection of ...
Aichi SR
core   +2 more sources

Preparation and Characterization of Fe2O3 from Iron Sand of the Coastal Sea of Cidaun Beach-South Cianjur (Indonesia) using the Co-precipitation Method

Science and Technology Indonesia, 2023
The synthesis and characterization of Fe2O3 from Iron Sand of the coastal sea of Cidaun Beach - South Cianjur using the coprecipitation method has been carried out.
Endah Puspita, Masno Ginting, Ramlan
doaj   +1 more source

Green and sustainable synthesis of magnetite from copper slag via citrate complexation for methylene blue dye removal from water

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract This study proposes a novel, green, and sustainable method for synthesizing magnetic iron oxides from metallurgical copper slag (CS), leveraging its iron content as a valuable resource. Iron was extracted via acid leaching using edible citric acid (ECA), forming a citrate–iron complex (CSL), which was subsequently thermally decomposed at 300°C
Melisa Portilla‐Sangabriel, Karen Valencia García, Tania‐Ariadna García‐Mejía, Agileo Hernández‐Gordillo, Rosa‐María Ramírez‐Zamora   +4 more
wiley   +1 more source

Structural characterization, thermal properties, and density functional theory studies of PMMA‐maghemite hybrid material

, 2016
Maghemite (γ‐Fe2O3)‐poly(methyl methacrylate) (PMMA) nanocomposites were prepared by grafting 3‐(trimethoxy‐silyl) propyl methacrylate on the surface of maghemite nanoparticles, this process being followed by methyl methacrylate radical polymerization ...
Sarmento, Victor H. V., Craievich, Aldo F., Ramalho, Teodorico C., Rocha, Marcus V. J., Carvalho, Hudson W. P. de   +4 more
core   +1 more source

Diblock Copolymer Nanoparticles Act as Nanoreactors for the Synthesis of Sterically‐Stabilized Inorganic Oxide Particles in Non‐polar Media

Angewandte Chemie, Volume 138, Issue 44, 26 October 2026.
Poly(lauryl methacrylate)‐poly(2‐hydroxyethyl methacrylate) (PLMA‐PHEMA) diblock copolymer nanoparticles prepared in non‐polar media serve as nanoreactors for the in situ synthesis of silica from tetraethyl orthosilicate (TEOS). A silica mass loading of 17% as judged by thermogravimetric analysis (TGA) produces a highly transparent dispersion, and ...
Priyanka Chohan, Andi Xie, Oleksandr O. Mykhaylyk, Steven P. Armes, Giles M. Prentice, David J. Atkinson, Andrew J. Smith   +6 more
wiley   +2 more sources

Magnesioferrita e caminho pedogenético de transformação de óxidos de ferro magnéticos em dois perfis de solo derivados de tufito da região do Alto Paranaíba (MG) Magnesioferrite and pedogenetic transformation pathway of magnetic iron oxides in two soil profiles developing on tuffite of the Alto Paranaíba region, state of Minas Gerais, Brazil

Revista Brasileira de Ciência do Solo, 2005
Solos magnéticos derivados de tufito da região do Alto Paranaíba (MG) têm mineralogia bastante variável, mas são relativamente ricos em óxidos de Fe isoestruturais ao espinélio, mais especificamente: (Ti, Mg)-magnetita e (Ti, Mg)-maghemita.
Fernando Dias da Silva, Paulo Rogério da Costa Couceiro, José Domingos Fabris, Antonio Taranto Goulart, João Carlos Ker   +4 more
doaj   +1 more source

Harnessing metallurgical slags for water treatment: Advances in organic pollutant degradation with and without hydrogen generation, and in heavy metal removal

The Canadian Journal of Chemical Engineering, EarlyView.
Valorization of ferrous and non‐ferrous metallurgical slags for water treatment: modification routes and applications in advanced oxidation, electrochemical processes, and adsorption within a circular economy framework. Abstract The removal of recalcitrant organic pollutants and heavy metals from water remains a critical challenge for safe drinking ...
Flor‐Tania Escárcega‐Olivares, Tania‐Ariadna García‐Mejía, Rosa‐María Ramírez‐Zamora   +2 more
wiley   +1 more source