SUSTAINABLE USE OF BOILER ASH TO PURIFY BIODIESEL AND WASTE FRYING OIL: A PROPOSAL OF CIRCULAR ECONOMY by Rhalid Akel, Fernanda S. Lira, Vinicius C. Luna, Matheus Z. Marques, Leonardo G. Vasconcelos, Marilza Castilho, Adriana P. C. Siqueira, Ailton J. Terezo, Adriano B. de Siqueira

“…FTIR and EDX analyses revealed a significant presence of SiO2 in the biomass, which can effectively regulate moisture and reduce impurities during biodiesel production. …”
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Ceramic-Based 3D Printed Supports for Photocatalytic Treatment of Wastewater by Lorena Hernández-Afonso, Ricardo Fernández-González, Pedro Esparza, M. Emma Borges, Selene Díaz González, Jesús Canales-Vázquez, Juan Carlos Ruiz-Morales

“…3D printing technology has become a powerful tool to produce 3D structures in any type of materials. …”
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Noncollinear harmonic spectroscopy reveals crossover of strong-field effects by Jicai Zhang, Xiulan Liu, Tien-Dat Tran, Wenqi Xu, Wenhao Yu, Chong Zhang, Ziwen Wang, Lei Geng, Jianing Zhang, Liang-You Peng, Stanislav Yu. Kruchinin, Tran Trung Luu

“…Here, we establish non-collinear harmonic spectroscopy as a powerful technique for initiating, tracking, and steering femtosecond carrier dynamics across the energy landscape in the dielectric SiO2 crystal. …”
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Characterization and regional variations in the mineralogical maturity of aeolian sands in northern China by Xuan Li, Feng Zhang

“…The mineralogical maturity, which is the degree to which the characteristics of clastic materials approach those of mature sandstone. It is a powerful tool for evaluating the sources, transport, and weathering history of sediments and is an essential geochemical index in desert research. …”
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Optimization and mechanism of wet desulfurization with fly ash based on response surface by Kai JU, Ying LIU, Xin LI, Wuang REN, Zheng YU, Renlong TANG, Pengkang JIN, Liping SUN

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Fluorescence Color Gradient Immunochromatographic Assay for Highly‐Sensitive, Quantitative, and Simultaneous Detection of Small‐Molecule Pollutants by Shu Wang, Changyue Xu, Xiaosong Wu, Tao Zhang, Jiahuan Zhang, Wenlong Bai, Shuai Zheng, Bing Gu, Chongwen Wang

“…A red fluorescent nanomembrane (GTQD@Si) is synthesized by the continuous self‐assembly of multilayer quantum dots and a SiO2 shell on a graphene oxide surface. This nanomembrane exhibits high stability in complex environments and provides superior fluorescence along with a larger reactive interface for sensing. …”
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Electropositive Magnetic Fluorescent Nanoprobe‐Mediated Immunochromatographic Assay for the Ultrasensitive and Simultaneous Detection of Bacteria by Jiaxuan Li, Zhengkang Li, Bingjie Wang, Qing Yu, Ting Wu, Chongwen Wang, Bing Gu

“…A magnetic multilayer quantum dot nanocomposite with an amino‐embedded SiO2 shell (MagMQD@Si+) is designed to enrich bacteria from solutions effectively, offer high luminescence, and reduce background signals on test strips, thus greatly improving the sensitivity and stability of ICA technique for pathogen. …”
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PETRO- AND PALEOMAGNETIC STUDIES OF BASALTS OF THE UPPER DEVONIAN APPAINSKAYA SUITE (WESTERN YAKUTIA) by К. M. Konstantinov, М. D. Tomshin, Sh. Z. Ibragimov, М. Z. Khuzin, I. K. Konstantinov, A. A. Yakovlev, E. V. Artemova

“…By their chemical composition, the basalts are normal alkalinity rocks (the sum of alkali not higher than 3.05 %; SiO2=48.1–49.7 %; rather moderate content of TiO2=1.9–2.5 %) (Fig. 4 A, B). …”
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