Results 121 to 130 of about 49,070 (235)

An Experimental Study on the Motion Through a Microchannel of a Ferrofluid Based on Ultrapure Magnetite Nanoparticles

Applied Sciences
This paper presents experimental research on the relationship between the magnetic properties and the viscosity of ferrofluid based on ultra-pure magnetite nanoparticles, with the aim of studying behaviour through a microchannel.
Dragoş-Viorel Brezoi, Anca Irina Gheboianu, Simona Mihai   +2 more
doaj   +1 more source

Ultrafine Magnetite Nanopowder: Synthesis, Characterization, and Preliminary Use as Filler of Polymethylmethacrylate Nanocomposites

Journal of Nanotechnology, 2012
Magnetite (Fe3O4) nanoparticles prepared by microwave-assisted hydrothermal synthesis have been characterized in terms of morphological and structural features.
Pietro Russo, Domenico Acierno, Mariano Palomba, Gianfranco Carotenuto, Roberto Rosa, Antonino Rizzuti, Cristina Leonelli   +6 more
doaj   +1 more source

New Potential Haematite and Magnetite Reference Materials for Iron Isotope Measurements by Solution Nebulisation MC‐ICP‐MS and by In Situ ns‐LA‐MC‐ICP‐MS

Geostandards and Geoanalytical Research, EarlyView.
Key Points Two haematite and magnetite materials were developed as potential Fe isotope reference materials. Solution and in situ LA‐MC‐ICP‐MS analyses yielded consistent δ56Fe values. Both materials are isotopically homogeneous and suitable for in situ Fe isotope calibration.
Jialu Yu, Marcus Oelze, Mathias Schannor, Simon Nordstad, Jochen Vogl   +4 more
wiley   +1 more source

Facile Synthesis and Characterization of Magnetite Mesoporous Silica Nanoparticles from Local Iron Sand

International Journal of Technology
This study aimed to synthesize magnetite mesoporous silica nanoparticles using local iron sand obtained from natural resources as magnetite core. The process was carried out in four stages, namely synthesis of magnetite nanoparticles, coating with silica,
Mita Kurniasari, Himawan Tri Bayu Murti Petrus, Siti Nurul Aisyiyah Jenie, Yuni Kusumastuti   +3 more
doaj   +1 more source

Small‐scale elemental abundance variations in Ryugu particles from touchdown 1

Meteoritics &Planetary Science, EarlyView.
Abstract Ryugu materials closely resemble CI chondrites' mineralogical, chemical, and isotopic compositions; yet minor but resolvable differences in certain elemental abundances are evident. In this study, the bulk chemical compositions of eight individual Ryugu particles (1.5–4.3 mg) from the first touchdown site (TD1) were determined using triple ...
Karina López García, Tetsuya Yokoyama, Ikshu Gautam, Makiko K. Haba, Tsuyoshi Iizuka, Nao Nakanishi, Ryota Fukai   +6 more
wiley   +1 more source

Leveraging Carbon Quantum Dots to Achieve UN Sustainable Development Goals in the Face of Climate Change

Climate Resilience and Sustainability, Volume 5, Issue 1, June 2026.
Carbon quantum dots (CQDs) play a significant role in supporting the UN SDGs by promoting the sustainable management of energy, healthcare, remediation, and agriculture in a multidisciplinary manner. It focuses on reducing waste, toxicity, and energy use while utilizing renewable resources.
Manish Kumar Sah, Roshani Pathak, Jasana Maharjan, Jineetkumar Gawad, Mahesh Palkar, Chandrakant Bonde, Ajaya Bhattarai   +6 more
wiley   +1 more source

Advancement in Anaerobic Digestion for Scaling‐Up Biogas Production Through Food Waste Valorization

ChemBioEng Reviews, Volume 13, Issue 2, April 2026.
The review article begins with an introduction that covers the overview, food waste (FW) classification, and the steps involved in producing biogas through anaerobic digestion (AD). Following that, it describes the process for producing biogas, including single‐, two‐, and multistage systems, mesophilic and thermophilic digestion, and wet and dry ...
Poulami Chatterjee, Nabanita Saha, Petr Sáha   +2 more
wiley   +1 more source

Review of recent advances in the design, synthesis, and modification of biochar for remediation of heavy metal pollution in water

The Canadian Journal of Chemical Engineering, Volume 104, Issue 4, Page 1769-1795, April 2026.
Research frontiers in using biochar for heavy metal remediation. Abstract Heavy metal contamination of water has long been a serious environmental issue. Biochar and biochar‐based composites are emerging as effective and sustainable solutions for heavy metal removal due to their strong adsorption abilities and environmentally friendly nature.
Soumik Chakma, Mehedi Hasan, Sudip K. Rakshit, Janusz Kozinski, Kang Kang   +4 more
wiley   +1 more source

Study on iron anchoring methods for magnetic biochar: Characterization, functional mechanism, and RBBR dye removal

The Canadian Journal of Chemical Engineering, Volume 104, Issue 4, Page 1836-1851, April 2026.
Abstract Magnetic biochar (MBC) is a novel bio‐metallic composite material with high potential in sustainable water cleaning. Iron anchoring is critical in forming iron‐based MBC and will fundamentally impact its characteristics and functionality in dye removal applications. However, the mechanism is not well‐revealed.
Soumik Chakma, Shrikanta Sutradhar, Sudip K. Rakshit, Pedram Fatehi, Kang Kang   +4 more
wiley   +1 more source

Biogenic Synthesis of Silver and Iron Nanoparticles Derived From Grewia Optiva Leaf Extract: A Novel Approach for Antidiabetic, Anticoagulant and Anti‐Inflammatory Therapies

International Journal of Chemical Kinetics, Volume 58, Issue 4, Page 159-174, April 2026.
ABSTRACT This study presents the green synthesis of silver (Ag‐NPs) and iron nanoparticles (Fe‐NPs) using aqueous leaf extract of Grewia optiva as a natural reducing and stabilizing agent. The extract was prepared using a Kjeldahl apparatus under controlled heating. Nanoparticle synthesis was optimized by varying pH, temperature, and salt concentration,
Muhammad Salman Khan, Khushbakht Asad, Sehrish Asad, Aulia Kanwal, Abdur Rahim, Mina Ziarati, Muhammad Bilal, Nolubabalo Matinise, Farhad Badshah   +8 more
wiley   +1 more source