Results 51 to 60 of about 8,715 (203)

Remediation of Organic Pollutant for Wastewater Treatment by Employing Sustainable Graphene Oxide/NiO‐ZrO2/Zeolite Ternary Composite Material

CleanMat, EarlyView.
Graphene oxide/NiO‐ZrO2/zeolite ternary composite was synthesized hydrothermally. Efficient adsorption of Congo red onto GO/NiO‐ZrO2/zeolite composite was studied. ABSTRACT The present study employs a novel method for the synthesis of graphene oxide (GO) based ternary composite utilized for the adsorption of Congo red (CR), an anionic dye molecule. The
Hidaya Narzary, Nituraj Mushahary, Bipul Das, Sanjay Basumatary   +3 more
wiley   +1 more source

Silicates, Aluminosilicates and Biogenic Silica

Chimia, 2020
Silicate and aluminosilicate minerals are hugely important in the Earth's crust; this article introduces three mineral classes and describes the origins of biogenic silica.
openaire   +4 more sources

Calculation and Analysis of Helium-permeation-induced Frequency Drift of the Rubidium Atomic Clock

Chinese Journal of Magnetic Resonance
Due to the collision-shift effect, helium permeation into the vapor cell causes a time-dependent frequency drift in rubidium atomic clock. To quantify this shift, a cylindrical vapor cell with dimensions of 1.8 cm in diameter, 1.6 cm in height, and 1 mm ...
LI Dou, WANG Pengfei, ZHONG Da, MEI Ganghua, Kang Songbai   +4 more
doaj   +1 more source

Experimental Investigation of the Biomass Catalytic Pyrolysis Process to Produce the Combustible Gases with the High Calorific Value

Bulletin of Chemical Reaction Engineering & Catalysis, 2015
The study is devoted to the low-temperature catalytic pyrolysis of biomass. The pyrolysis of peat was conducted using natural aluminosilicates and synthetic zeolites.
Yury Kosivtsov, Esther Sulman, Yury Lugovoy, Anna Kosivtsova, Antonina Stepacheva   +4 more
doaj   +1 more source

Mixed‐Impurity Co‐Poisoning of NH3‐SCR Catalysts: Poisoning Mechanisms, Antagonistic Effects, and Anti‐Inactivation Strategies

EcoEnergy, EarlyView.
This review summarizes the synergistic effects of mixed impurities on ammonia‐selective catalytic reduction (NH3‐SCR) catalysts, including the poisoning mechanism of the catalyst caused by mixed impurities, the antagonistic effects between the impurities, and the research on the anti‐poisoning strategies for the catalyst in recent years.
Hongyan Xue, Manas Pal, Zhaoteng Xue, Dongsen Mao   +3 more
wiley   +1 more source

Nanofiber PVA‐Based Membranes Incorporating Functionalized Spanish Broom Derivatives for Sustainable Water Purification

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study investigates Spanish broom (Spartium junceum) as a renewable source for electrospun composite membranes in sustainable water purification. MCC and biochar were functionalized with eco‐friendly precursors and nanomaterials (i.e., HNT, β‐CDs) to develop hybrid PVA nanofiber composites.
Giulia Rando, Silvia Sfameni, Jozefien Geltmeyer, Alessandra Palella, Lorenzo Spadaro, Alberto Riminucci, Karen De Clerck, Maria Rosaria Plutino   +7 more
wiley   +1 more source

KARAKTERISTIK FISIS ALUMINOSILIKAT GEOPOLIMER BERBASIS SILIKA SEKAM PADI UNTUK APLIKASI FAST IONIC CONDUCTOR

Reaktor, 2017
The study aims to investigate the effect of calcination temperatures on the phase formation and electrical properties of aluminosilicate geopolymer prepared from rice husk silica and sodium aluminate.
Agus Riyanto, Simon Sembiring, Junaidi Junaidi   +2 more
doaj   +1 more source

Fluorescence Behavior of Water‐Soluble Porphyrins Immobilized on LTA Zeolite and Its Chlorogenic Acid Polyphenol Sensing in Coffee Wastewater

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
During coffee bean and cherry washing, contaminants are released into water, making this process a major source of water pollution. Chlorogenic acid can be efficiently detected using hybrid zeolite–porphyrin materials by measuring fluorescence quenching, achieving detection limits lower than current regulatory thresholds.
João Otávio Donizette Malafatti, Gabriele Magna, Francesco Pizzoli, Fabrizio Caroleo, Cadia D'Ottavi, Williane da Silva Freitas, Ailton José Moreira, Elaine Cristina Paris, Luiz Henrique Capparelli Mattoso, Corrado Di Natale, Roberto Paolesse   +10 more
wiley   +1 more source

Substituição de amianto por silicato de alumínio e grafite expansível em compósito de poliuretano utilizado em motor-foguete Substitution of asbestos for aluminosiliacate and expandable graphite in polyurethane composites used in rocket motors

Polímeros, 2007
Compósitos de poliuretano e amianto (liner) são utilizados como revestimento interno em paredes de motor-foguete, conferindo proteção térmica e garantindo a adesão entre o propelente e as paredes do motor.
Henrique Crespim, Margarete F. P. Azevedo, Luis H. David, Silvana N. Cassu, Vera L. Lourenço   +4 more
doaj   +1 more source

Tailoring the Mechanical Properties of Metaluminous Aluminosilicate Glasses by Phosphate Incorporation

Frontiers in Materials, 2020
The characterization of aluminosilicate glasses is highly relevant in geosciences and for engineering applications such as reinforcement fibers or touchscreen covers.
Thilo Grammes, René Limbach, Sebastian Bruns, Leo van Wüllen, Dominique de Ligny, Efstratios I. Kamitsos, Karsten Durst, Lothar Wondraczek, Delia S. Brauer   +8 more
doaj   +1 more source