Materials Research and Development is an international, peer-reviewed open access journal dedicated to advancing research the field of materials science and engineering. The journal provides a rapid publication process to ensure wide dissemination of high-quality articles to scientists, professionals, and interested individuals worldwide. Our goal is to serve as an efficient, reliable, and trusted platform for scholars and readers, publishing cutting-edge research in the field.
Abstract: Industrial wastewater treatment is one of the most important problems that need to be solved urgently in today's social environmental pollution. Therefore, it is of great significance to develop efficient and environmentally friendly new wastewater treatment materials. Bismuth based semiconductor materials are a new type of photographically materials which have attracted much attention in recent years. Due to their unique structure and suitable band gap, bismuth based semiconductor materials show good visible photographically performance, and have great application prospects in the field of pollution control. In this paper, from the perspective of the preparation of bismuth compounds and the mechanism of wastewater degradation, the research progress of many kinds of bismuth semiconductor materials in photoelectric cooperative degradation of organic wastewater was reviewed.Abstract: Industrial wastewater treatment is one of the most important problems that need to be solved urgently in today's social environmental pollution. Therefore, it is of great significance to develop efficient and environmentally friendly new wastewater treatment materials. Bismuth based semiconductor materials are a new type of photographically materia...Learn More
Abstract: At present, the average drilling depth on land in China is over 3000 m. Drilling fluid with low viscosity, high yield value, high ratio of dynamic shear force and high temperature resistance are very critical for deep and ultra-deep wells. Low viscosity drilling fluid can generate less frictional resistance during circulation, thus reducing circulation energy consumption and circulation pressure loss. At the same time, drilling fluid require high yield value to effectively remove rock chips and maintain well wall stability. Low viscosity and high yield value drilling fluid can maintain stability under high temperature and pressure, and can be discharged from the borehole more quickly, reducing the erosion of the drilling fluid on the well wall and contamination of the formation. In view of the above requirements, low viscosity, high yield value drilling fluid additives have been widely studied at home and abroad, including nanoparticles, polymers, lignocellulose, salt and other types. This paper analyzes and compares the research status of these different types of treatment agents. Nanoparticles and lignocellulose were the most suitable for environmental protection and high temperature resistance, and outlooks the research direction of nano-mixed metal hydroxide, multi-positive gel instead of bentonite in drilling fluid base slurry and lignocellulose.Abstract: At present, the average drilling depth on land in China is over 3000 m. Drilling fluid with low viscosity, high yield value, high ratio of dynamic shear force and high temperature resistance are very critical for deep and ultra-deep wells. Low viscosity drilling fluid can generate less frictional resistance during circulation, thus reducing circula...Learn More