Results 31 to 40 of about 35,420 (247)

Ionic Magnetic COFs Loaded with GOx for Cascade Reaction of Nanoenzymes and Natural Enzymes

Taiyuan Ligong Daxue xuebao, 2023
Purposes Combining the high selectivity of natural enzymes with the high stability of nanoenzymes in a one-pot reaction has emerged as an ideal solution to improving the diversity/complexity of biocatalytic cascades and the stability of multi-enzyme ...
Heng ZHANG, Fan YANG, Ruipeng REN, Yongkang LYU   +3 more
doaj   +1 more source

Removing Methyl Orange Molecules from Aqueous Medium by Magnetic Nanoparticles: Evaluating adsorption factors, isotherms, kinetics and thermodynamics [PDF]

Journal of Water and Environmental Nanotechnology, 2020
In this paper, Fe3O4 and MgFe2O4 as magnetic samples were successfully synthesized by coprecipitation and combustion methods, respectively, to be used for adsorption of toxic methyl orange molecules from the aqueous solution.
Behgam Rahmanivahid, Freshteh Naderi, Hamed Nayebzadeh   +2 more
doaj   +1 more source

Effects of Iron and Graphene Oxide on the Photocatalytic activity of Titanium Dioxide for Methylene Blue Degradation [PDF]

آب و فاضلاب, 2020
Among the photocatalysts, Titanium dioxide (TiO2) is mostly used for wastewater treatment. Nevertheless, large band gap, rapid recombination of electron–hole along with difficult separation process limits TiO2 applications in industrial scale.
Leila Zadmehr, Shiva Salem
doaj   +1 more source

Fabrication of Highly Dispersed Cu/α-FeOOH via Green Rust and Its Application in Hydrogenation of Methyl Palmitate

能源环境保护
Fatty alcohols are important chemical raw materials in modern industry and are widely used in cosmetics, household chemicals, pesticides, and fine chemicals. They are considered highly valuable in industry.
Panjie YU, Hongwei ZHANG, Yongde MA, Zhenping CAI, Yanning CAO, Kuan HUANG, Lilong JIANG   +6 more
doaj   +1 more source

A High Selective and Sensitive Spectrophotometric Cholesterol Detection Using B-Cyclodextrin/Fe3O4 Composite as the Identification Agent

International Journal of Technology
This study aimed to develop a simple and low-cost cholesterol detection using UV-vis spectrophotometer with -cyclodextrin (BCD)/Fe3O4 nanocomposite as the identification agent. Cholesterol detection was achieved by replacing methylene blue (MB) molecules,
Vanya Dharmawan, Isnaini Rahmawati, Afiten Rahmin Sanjaya, Beti Ernawati Dewi, Endang Saepudin, Tribidasari A. Ivandini   +5 more
doaj   +1 more source

Duplex Stainless Steel Laser‐Surface Textured: Stability in Brine Solution

Advanced Engineering Materials, EarlyView.
Controlled laser‐surface treatment (LST) of duplex DSS2205 steel is performed to increase its stability in brine solution under cyclic electrochemical assays. The superior protection with respect to flat and smooth panels is attributed to the presence of FeCr2O4 as the main protective oxide layer in the LST surface, after corrosion tests. The stability
Mohammad Rezayat, Hamidreza Enshaei, Elaine Armelin, José I. Iribarren, Antonio Mateo, Miguel Morales   +5 more
wiley   +1 more source

Characterization of steel slag by SEM-EDS, XRD, and INAA

Brazilian Journal of Radiation Sciences, 2021
Steel slag is considered a by-product of the steel industry and its reuse is a strategy for environmental protection, since it consists of potential polluting materials.
Diogo Teixeira Moreira, Maria Ângela de Barros Correia Menezes, Adriana de Souza Medeiros Batista   +2 more
doaj   +1 more source

Characterization of a Recyclate‐Based MgO‐Steel Composite As‐Sintered Inert Anode Candidate After Exposure to Cryolite Electrolysis

Advanced Engineering Materials, EarlyView.
Carbon‐free inert anodes are essential for decarbonizing aluminum electrolysis. This study investigates a recyclate‐based MgO‐316L steel composite anode tested under galvanostatic Hall–Héroult conditions in cryolite at 1000°C. Microstructural analysis reveals selective MgO fluorination, spinel and oxide layer formation, electrolyte infiltration, and ...
Serhii Yaroshevskyi, Alexander Adamczyk, Nora Brachhold, Gert Schmidt, Jana Hubálková, R. Gumeniuk, Alexandros Charitos, Christos G. Aneziris   +7 more
wiley   +1 more source

Impact of Pre‐Oxidation Treatments on a Recycled MgO/Steel‐Composite as Carbon Free Anode in Aluminum‐Electrolysis Environments

Advanced Engineering Materials, EarlyView.
Cermets (60 vol.% AISI 316L stainless steel, 40 vol.% recycled MgO), intended for use in aluminum electrolysis, were pre‐oxidized in three furnaces with different heating technologies and subjected to a cryolite corrosion test. The different atmospheres influenced the formation of oxide layers, which in turn affected corrosion resistance and ...
Patricia Kaiser, Felix Drechsler, Nora Brachhold, Florian Kerber, Christos G. Aneziris   +4 more
wiley   +1 more source

Ionic Liquid Supported on Magnetic Graphene Oxide as a Highly Efficient and Stable Catalyst for the Synthesis of Triazolopyrimidines

Acta Chimica Slovenica, 2022
A novel sulfonic acid functionalized ionic liquid was prepared by anchoring 1-(propyl-3-sulfonate) vinylimidazolium hydrogen sulfate ([(CH2)3SO3HVIm]HSO4) on Fe3O4@GO. The prepared heterogeneous catalyst was characterized by XRD, FT-IR, EDX, SEM, VSM and
Azar Jahanbakhshi, Mahnaz Farahi, Yeganeh Aghajani   +2 more
doaj   +1 more source