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Byong Wook Cho and Chang Oh Choo
Uranium concentrations (a total of 82 samples) in groundwater in Icheon, middle Korea, showed a wide range from 0.02 to 1640 µg/L with a mean of 56.77 µg/L, a median of 3.03 µg/L, and a standard deviation of 228.63 µg/L. Most groundwater samples had quit...
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H. Ardiyanti, D. Puspitarum, O. F. Maryana, W. A. Pujakesuma
Pág. 197 - 200
This article reports the results synthesis of composite Fe3O4/SiO2 and nanoparticles from natural resources (sugarcane bagasse). The synthesis of Fe3O4 and SiO2 nanoparticles used co-precipitation and sol-gel methods with SiO2 from sugarcane bagasse as a...
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Martina Ba?istová, Jirina Vontorová, Simona Zlá, Monika Kawuloková, Petr Lichý and Tomá? Dvorský
Quality quartz sand is globally utilized in construction due to its availability and economic factors, especially in the production of composite cements. Despite its positive properties, quartz sand also has several disadvantages. The dilation of quartz ...
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Xiaoyan Shi, Fuming Yang, Enzhu Hou and Zhongzhu Liang
Metalenses, with their unique modulation of light, are in great demand for many potential applications. As a proof-of-principle demonstration, we focus on designing SiO2 metalenses that operate in the deep ultraviolet region, specifically around 193 nm. ...
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Soyoung Kim, Jung-Hwan In, Seon Hoon Kim, Karam Han, Dongkook Lim, Yun Sik Hwang, Kyung Min Lee and Ju Hyeon Choi
SiO2/Nb2O5 multilayer thin films were designed for the special application of an aviation lighting system emitting green light. For optical components in this system to meet requirements such as a high transmittance and durability, SiO2/Nb2O5 multilayer ...
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M. R. Karimi Estahbanati, Thuy-Dung Vu, Trong-On Do, Zahra Nayernia and Maria C. Iliuta
The development of novel and active photocatalysts to industrialize photocatalysis technology is still a challenging task. In this work, a novel method is presented to prepare TiO2/SiO2 NSs by covering SiO2 nanospheres (NSs) with titanate-nanodiscs (TNDs...
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Maohua Zhang, Zenong Tian and Jiyin Cui
In order to study the influence of nanomaterials on the carbonation resistance of marine concrete under bending loads, an appropriate amount of nano-SiO2 was added to plain concrete, and a self-developed carbonation box and bending loading device were us...
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Parvathiraja Chelliah, Jeetendra Kumar Gupta, Saikh Mohammad Wabaidur, Masoom Raza Siddiqui, Siaw Foon Lee and Wen-Cheng Lai
The present work shows the obtainment of biosynthesized SiO2 with the aid of Jasminum grandiflorum plant extract and the study of its photocatalytic ability in dye degradation and antibacterial activity. The obtained biosynthesized SiO2 nanoparticles wer...
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Heng Li, Junpeng Hua, Ranran Li, Yan Zhang, Huanhuan Jin, Shijing Wang and Guoyin Chen
Since ferric tetroxide (Fe3O4) has strong magnetic properties, coating amorphous silica (SiO2) with Fe3O4 nanoparticles can protect the magnetic Fe3O4 particles and form a new magnetic adsorbent with a core?shell structure and small pore size, the strong...
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Bin Ma, Yunfan Chu, Xiaolin Huang and Bai Yang
The performance indicators of concrete are mainly determined by the interface characteristics between cement hydration slurry and aggregates. In this study, molecular dynamics technology was used to evaluate the effect of the interfacial water content on...
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