Search Results - "Lira, Hélio De Lucena"

Development of cordierite/mullite composites using industrial wastes by Brito, Igor Pinheiro, Almeida, Ester Pires, Araújo Neves, Gelmires, Lucena Lira, Hélio, Menezes, Romualdo Rodrigues, Silva, Valmir José, Lima Santana, Lisiane Navarro

“…Ceramics containing cordierite and mullite as their principal phases are promising for many applications, due to properties such as a low coefficient of…”
Get full text

Analysis of pore size of hybrid membranes for separation of microemulsions by de Medeiros, Keila Machado, Araújo, Edcleide Maria, de Lucena Lira, Hélio, de Farias Lima, Diego, de Lima, Carlos Antônio Pereira, de Lima, Geralda Gilvânia Cavalcante

“…In this study, it was obtained that the hybrid membranes of polyamide 6 (PA6), in proportions of 1.0%, 3.0% and 5.0% by weight of montmorillonite (MMT) and…”
Get full text

Preparation and Application in Crude Oil-Water Separation of Clay-Based Membranes by Souza, Mykaell Yan Muniz de, Lira, Hélio de Lucena, Santana, Lisiane Navarro de Lima, Rodríguez, Miguel Angel

“…In this study, tubular ceramic membranes were prepared from a mixture of ball clay, talc and alumina. The mixture was characterized by the following…”
Get full text

Study of The Influence of Viscosity on The Morphology of Polyethersulfone Hollow Fiber Membranes/Additives by Dias, Rafael Agra, Medeiros, Vanessa da Nóbrega, Silva, Bárbara Ianny Arruda, Araújo, Edcleide Maria, Lira, Hélio de Lucena

“…The aim of this work was to prepare hollow fiber membrane changing the composition of polyethersulfone, polyvinylpyrrolidone (PVP) and clay, through the phase…”
Get full text

Hybrid Membranes of Polyamide Applied in Treatment of Waste Water by Medeiros, Keila Machado de, Araújo, Edcleide Maria, Lira, Hélio de Lucena, Lima, Diego de Farias, Lima, Carlos Antônio Pereira de

“…In this work, it was prepared hybrid membranes of polyamide6 (PA6) with montmorillonite (MMT) and porogenic agent (CaCl2). The hybrid membranes with CaCl2 were…”
Get full text

Polyethersulfone Hollow Fiber Membranes Developed for Oily Emulsion Treatment by Ferreira, Rodholfo da Silva Barbosa, Oliveira, Sandriely Sonaly Lima, Salviano, Aline Florindo, Araújo, Edcleide Maria, Leite, Amanda Melissa Damião, Lira, Hélio de Lucena

“…Polyethersulfone (PES) hollow fiber membranes were produced, containing 3% of two types of clay (Brasgel PA - MMT and Cloisite NA - CLNa), in order to modify…”
Get full text

The harnessing of the waste arising from Y-TZP dental ceramics manufactured by CAD/CAM to be used as alternative dental materials by Cordeiro, Valéria Vital, Rodrigues, Alisson Mendes, Costa, Fabiana Pereira da, Cartaxo, Juliana de Melo, Lira, Hélio de Lucena, Menezes, Romualdo Rodrigues

“…A large amount of yttria-stabilized zirconia (Y-TZP) waste is produced during the manufacture of dental prostheses by the CAD/CAM milling process. This work…”
Get full text

Development of hollow fiber membranes with alumina and waste of quartzite by Oliveira, Suelem Sonaly Lima, Oliveira, Sandriely Sonaly Lima, Ferreira, Rodholfo da Silva Barbosa, Lira, Hélio de Lucena, Santana, Lisiane Navarro de Lima, Araújo, Edcleide Maria

“…The development of ceramic membranes with different geometries and compositions extends the possibilities of industrial applications, inducing advantages in…”
Get full text

Flat membranes of polyethersulfone/polysulfone blends in water/oil separation by Dias, Rafael Agra, Ferreira, Rodholfo Silva Barbosa, Medeiros, Vanessa da Nobrega, Araujo, Bruna Aline, Araújo, Edcleide Maria, Lira, Hélio de Lucena

“…Flat membranes composed of blends have been studied in the treatment of wastewater due to the influence on their properties. The objective of this study is to…”
Get full text

Coagulation Bath in The Production of Membranes of Nanocomposites Polyamide 6/Clay by Ferreira, Rodholfo Silva Barbosa, Pereira, Caio Henrique do Ó, Santos Filho, Edson Antônio dos, Leite, Amanda Melissa Damião, Araújo, Edcleide Maria, Lira, Hélio de Lucena

“…Membranes of polyamide 6 and its nanocomposites with 3 and 5% of clay were obtained by the phase inversion method using distilled water and solvent as the…”
Get full text

Hollow fiber membranes of polysulfone/attapulgite for oil removal in wastewater by da Silva Barbosa Ferreira, Rodholfo, Dias, Rafael Agra, Araújo, Edcleide Maria, Oliveira, Sandriely Sonaly Lima, da Nóbrega Medeiros, Vanessa, de Lucena Lira, Hélio

“…Wastewater treatment and saltwater desalination are ways to confront water scarcity in the world. The objective of this research is the development of…”
Get full text

A Brief Review of MoO3 and MoO3-Based Materials and Recent Technological Applications in Gas Sensors, Lithium-Ion Batteries, Adsorption, and Photocatalysis by da Silva Júnior, Mário Gomes, Arzuza, Luis Carlos Costa, Sales, Herbet Bezerra, Farias, Rosiane Maria da Costa, Neves, Gelmires de Araújo, Lira, Hélio de Lucena, Menezes, Romualdo Rodrigues

“…Molybdenum trioxide is an abundant natural, low-cost, and environmentally friendly material that has gained considerable attention from many researchers in a…”
Get full text

Effect of Sintering Temperature on Membranes Manufactured with Clays for Textile Effluent Treatment by Freitas, Normanda Lino de, Lima, Rosa do Carmo de Oliveira, Lira, Hélio de Lucena, Silva, Mirele Costa da

“…The aim of this work is to use cheap raw materials, such as kaolin and ball clay, for the manufacture of ceramic membranes for application in effluent…”
Get full text

Porous mullite blocks with compositions containing kaolin and alumina waste by da Silva, Valmir José, da Silva, Michelle Félix, Gonçalves, Wherllyson Patrício, de Menezes, Romualdo Rodrigues, Araújo Neves, Gelmires de, Lucena Lira, Hélio de, de Lima Santana, Lisiane Navarro

“…In the production of alumina by the Bayer process, the calcination step generates a waste containing ~90% aluminum oxide (Al2O3). Due to the high content of…”
Get full text

Preparation and characterization of alumina hollow fiber membrane for oilfield produced water treatment by Oliveira, Sandriely Sonaly Lima, de Almeida Àvila, Rayssa, da Silva Barbosa Ferreira, Rodholfo, da Nóbrega Medeiros, Vanessa, Araújo, Edcleide Maria, de Lucena Lira, Hélio

“…Currently one of the greatest challenges of humanity is the preservation of the environment, especially in relation to natural water sources. An efficient way…”
Get full text

Role of Nitrogen and Yttrium Contents in Manufacturing (Cr, Y)Nx Film Nanostructures by Apolinario, Raira Chefer, Rodrigues, Alisson Mendes, Avila, Pedro Renato Tavares, Pereira, Júlia Nascimento, Ramirez, Carlos Alberto Ospina, Daum, Philipp, Costa, Fabiana Pereira da, Lira, Hélio de Lucena, Neves, Gelmires de Araújo, Greiner, Christian, Pinto, Haroldo Cavalcanti

“…The high-power impulse magnetron sputtering (HiPIMS) technique was applied to deposit multilayer-like (Cr, Y)Nx coatings on AISI 304L stainless steel, using…”
Get full text

Al2O3 Preforms Infiltrated with Poly(methyl methacrylate) for Dental Prosthesis Manufacturing by Crispim da Silveira, Olimpia, Rodrigues, Alisson Mendes, Montazerian, Maziar, de Lucena Lira, Hélio, Baino, Francesco, Menezes, Romualdo Rodrigues

“…The combination of biocompatible polymers and ceramics shows great promise in the development of composites with suitable mechanical properties for dental…”
Get full text

Incorporation of quartzite waste in mixtures used to prepare sanitary ware by Medeiros, Paula Simone Soares de, Lira, Hélio de Lucena, Rodriguez, Miguel A., Menezes, Romualdo Rodrigues, Neves, Gelmires de Araújo, Santana, Lisiane Navarro de Lima

“…Quartzite is a mineral that contains oxides that are present in the principal raw materials utilized in traditional ceramic production. However, during its…”
Get full text

Nanoparticles of ZnO Doped With Mn: Structural and Morphological Characteristics by Bonifácio, Maria Aparecida Ribeiro, Lira, Hélio de Lucena, Neiva, Laédna Souto, Kiminami, Ruth H. G. A., Gama, Lucianna

“…In this study, the effects of dopant concentrations on the structural and morphological characteristics of Zn1-xMnxO powders (x= 0.025, 0.05, 0.075, and 0.1…”
Get full text

Mixture model applied to the development of polymeric fibre diaphragms by Moura Junior, Celso Fidelis de, Nunes, Raquel Araújo, Silva, Rafael Teles Cruz, Lira, Hélio de Lucena, Cunha, Carlos Thiago Cândido, Vilar, Eudésio Oliveira

“…ABSTRACT The extraction and use of asbestos have been banned around the world because of its damage effects to the human health, it leads to studies of new…”
Get full text