Results 11 to 20 of about 154,019 (297)
Investigate and Comparison Effect add Amorphous and Crystalline - Nano SiO2 on Properties of Concrete [PDF]
Engineering and Technology Journal, 2015 In this paper, the study included the comparison between amorphous silica and crystalline silica (quartz), and with nano scale size, two types of silicawere added to concrete by ratios (5%, 10%, 15%, and 20%) as a replacement by the weight of cement ...
Rami Joseph Aghajan Sldozian
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Sustainable Green Approach of Silica Nanoparticle Synthesis Using an Agro-waste Rice Husk [PDF]
Nature Environment and Pollution Technology, 2023 Agro-waste can provide a non-metallic, environmentally friendly bio-precursor for the production of green silica nanoparticles. To manufacture silica nanoparticles from rice husk, biogenic silica nanoparticles were generated using an alkaline ...
Mikhlesh Kumari, Kulbir Singh, Paramjeet Dhull, Rajesh Kumar Lohchab and A. K. Haritash
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Journal of Air Pollution and Health, 2022 Introduction: Due to the obvious adverse effects of exposure to free crystalline silica and the high exposure level in silica-related occupations, the present study aimed at the investigation of renal symptoms in cement factory workers.
Ali Poormohammadi +5 more
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PREPARATION OF AMORPHOUS SILICA FROM OIL SHALE RESIDUE AND SURFACE MODIFICATION BY SILANE COUPLING AGENT; pp. 37–46 [PDF]
Oil Shale, 2010 Two kinds of modified amorphous silica, grafted vinyl trimethoxysilane (AH-171) and N-(n-butyl)-3-aminopropyl trimethoxysilane (DYNASYLAN 1189), were obtained from oil shale residue by the technical process of calcination and activation, alkaline ...
XU YING-MEI +6 more
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CO2 Capture using Sodium Silicate Solution in a Packed Bed Column [PDF]
E3S Web of Conferences, 2021 The use of solid adsorbents such as amine-modified silica aerogels to capture CO2 has been commonly used but poses several obstacles, including expensive raw materials, production complexity, and considerations for adsorbent regeneration.
Muljani Srie +3 more
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Structural Colors Based on Amorphous Arrays Comprised Solely of Silica Particles
Applied Sciences, 2020 In this study, structural colors were fabricated by producing an amorphous array with atypical silica particles. The colors were controlled by an array of silica particles with different sizes. In previous research, the process required inducement of the
Dae-San Choi +2 more
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Frontiers in Chemical Engineering, 2021 Hydrogen as a chemical fuel and energy carrier can provide the path to solar energy storage to overcome the intermittency issues. Hydrogen can be produced by various methods; among them is the thermochemical water splitting of metal/metal oxide reduction
Fotouh Al-Ragom
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Multi-reward reinforcement learning based development of inter-atomic potential models for silica
npj Computational Materials, 2023 Silica is an abundant and technologically attractive material. Due to the structural complexities of silica polymorphs coupled with subtle differences in Si–O bonding characteristics, the development of accurate models to predict the structure ...
Aditya Koneru +7 more
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Energies, 2020 To establish a new quantitative analysis method for amorphous silica content and understand its effect on reservoir properties, the amorphous silica (SiO2) in the shale strata of the Lucaogou Formation in the Jimsar Depression was studied by scanning ...
Ke Sun +4 more
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Rheological properties and entrainment behavior of quartz/amorphous silica in chalcopyrite flotation
工程科学学报, 2023 Owing to the global consumption of high-grade ores, large amounts of low-grade and complex ores are being processed nowadays. The entrainment of gangue minerals in the ores, especially silicate gangue minerals, has become a nonignorable issue that can ...
Lei WANG +5 more
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