Thẻ: SDG9-Công nghệ – sáng tạo và phát triển hạ tầng

Abstract In this work, TiO2@g–C3N4 was synthesized and formulated as a novel ready-to-use screen-printable paste for water splitting applications. Various analytical methods were employed to examine the composition, morphological characteristics, and optical properties of the individual materials and the resulting heterojunction. Photoelectrochemical (PEC) water splitting was investigated under illumination of 100 mW cm-2 using linear chopped-light chronoamperometry...

Abstract We study the images of polynomial maps over algebraically closed division rings.Our first result generalizes the classical Ax-Grothendieck theorem: We show that if ƒ1,…, ƒm are elements of the free associative algebra D〈 Χ1,…,Χm〉 generated by m ≥ 1 variables over an algebraically closed division ring D of finite dimension over its center F, and if the...

Abstract We investigate the coupled evolution of heterogeneous strain, crystallinity, and stress fields in natural rubber (NR) sheets containing a circular hole during uniaxial stretching, with a focus on how strain-induced crystallization (SIC) influences local stress concentration at structural discontinuities. By high-resolution digital image correlation, an empirical strain-crystallinity relationship and a hyperelasticity analysis firmly grounded...

Abstract Freshwater scarcity is a critical issue in Vietnam, particularly in the Mekong Delta, a densely populated region with an agriculture-based economy. This scarcity is largely driven by saltwater intrusion during the dry season, severely affecting both agriculture and the local economy. In response, advanced desalination technologies have been proposed. In this study, we investigated...

Abstract This study investigates the effectiveness of a hydrate-based water purification process on high-salinity and wastewater samples. Testing involved a 4-L-scale novel apparatus using HFC134a as a guest molecule during a continuous hydrate formation–pelletization–dissolution process. Each stage of the succeeded in removing 80–85% of individual dissolved contaminants from highly polluted water. This is the first study to...

Abstract This study investigates the removal characteristics of a hydrate-based water purification process used to remove the major radionuclides monitored in nuclear accident areas. The effect of the coexistence of salt ions on the removal of radioactive materials is also evaluated. Previous studies have found existing processes such as ion exchange and membrane separation to be reliable methods for radionuclide removal from contaminated water. However, these...

Summary Sodium-ion batteries (SIB) have been becoming a promising candidate for future energy storage and conversion owing to the abundant sodium sources and availability of their featured materials for solving the planet’s sustainability issues, which is recently a global overriding concern. The development of low-cost, sustainable, compatible, and stable anode materials should be parallel driven...

Abstract Bovine bone-derived hydroxyapatite (BBHAp) has been reported to be a biocompatible and efficient bone graft substitute. In this study, hydroxyapatite (HAp) was produced by combining the cleaning process with alkali and thermal treatment of bovine bone. The calcination temperature was 700°C. The functionality of the BBHAp scaffold as a bone graft substitute was determined...