Microbubbles have been widely used in the chemical industry in recent years due to their unique physical and chemical properties.This article provides an overview of the characteristics and main generation methods of ...Microbubbles have been widely used in the chemical industry in recent years due to their unique physical and chemical properties.This article provides an overview of the characteristics and main generation methods of microbubbles,including physical,chemical,mechanical,and microfluidic tech-niques.It also explores the applications of microbubbles in the chemical industry,such as gas-liquid reaction intensification, gas separation,mineral flotation, and preparation of high-performance poly olefin materials.By analyzing the current research status of microbubble technology,the future development direction of its application in the chemical industry is discussed.展开更多
The exchange performances and the distribution coefficient of Cesium Ion-Sieve (Cs-IS) for cesium and for some rare earth elements were compared. In particula r, the effects of neodymium on the cesium ion exchange an...The exchange performances and the distribution coefficient of Cesium Ion-Sieve (Cs-IS) for cesium and for some rare earth elements were compared. In particula r, the effects of neodymium on the cesium ion exchange and the Cs+ selectivity v ariation on Cs-IS owing to introduction of rare earth elements into HLLW were s tudied. Though rare earth elements exhibit a small influence on the distributio n coefficient for Cs+, they impair Cs-exchange capacity of Cs-IS to some ext ent. This interruption on the selectivity to Cs+ can be significantly eliminat ed provided an appropriate ratio of liquid to solid V:m is used.展开更多
Photoelectrochemical(PEC)biosensors,as an emerging analytical platform,offer significant advantages,including low background signals,high sensitivity,and operational simplicity,due to the inherent separation of the ex...Photoelectrochemical(PEC)biosensors,as an emerging analytical platform,offer significant advantages,including low background signals,high sensitivity,and operational simplicity,due to the inherent separation of the excitation source and the detection signal.The core of achieving high performance in PEC biosensors lies in the development of efficient signal amplification strategies.This review systematically summarizes recent research progress on signal amplification mechanisms in PEC biosensors.Photoelectric†conversion constitutes the basis of PEC sensing,primarily involving three essential processes:light harvesting,charge carrier separation,and interfacial reaction.Based on this,the prevailing signal amplification mechanisms are reviewed from the core processes of photoelectric conversion to the design of signal output.Simultaneously,the design principles and characteristics of these mechanisms are delved.Finally,this review examines the challenges of PEC sensing technologies and explores future trends.This review aims to provide theoretical guidance for the rational design of high-performance PEC biosensors and to promote their further development in applications of analysis.展开更多
基金provided by the Key Program of the National Natural Science Foundation of China(22238007)the National Natural Science Foundation of China(22222810,22208289)Young Elite Scientists Sponsorship Program by CAST(2023QNRC001).
文摘Microbubbles have been widely used in the chemical industry in recent years due to their unique physical and chemical properties.This article provides an overview of the characteristics and main generation methods of microbubbles,including physical,chemical,mechanical,and microfluidic tech-niques.It also explores the applications of microbubbles in the chemical industry,such as gas-liquid reaction intensification, gas separation,mineral flotation, and preparation of high-performance poly olefin materials.By analyzing the current research status of microbubble technology,the future development direction of its application in the chemical industry is discussed.
文摘The exchange performances and the distribution coefficient of Cesium Ion-Sieve (Cs-IS) for cesium and for some rare earth elements were compared. In particula r, the effects of neodymium on the cesium ion exchange and the Cs+ selectivity v ariation on Cs-IS owing to introduction of rare earth elements into HLLW were s tudied. Though rare earth elements exhibit a small influence on the distributio n coefficient for Cs+, they impair Cs-exchange capacity of Cs-IS to some ext ent. This interruption on the selectivity to Cs+ can be significantly eliminat ed provided an appropriate ratio of liquid to solid V:m is used.
文摘Photoelectrochemical(PEC)biosensors,as an emerging analytical platform,offer significant advantages,including low background signals,high sensitivity,and operational simplicity,due to the inherent separation of the excitation source and the detection signal.The core of achieving high performance in PEC biosensors lies in the development of efficient signal amplification strategies.This review systematically summarizes recent research progress on signal amplification mechanisms in PEC biosensors.Photoelectric†conversion constitutes the basis of PEC sensing,primarily involving three essential processes:light harvesting,charge carrier separation,and interfacial reaction.Based on this,the prevailing signal amplification mechanisms are reviewed from the core processes of photoelectric conversion to the design of signal output.Simultaneously,the design principles and characteristics of these mechanisms are delved.Finally,this review examines the challenges of PEC sensing technologies and explores future trends.This review aims to provide theoretical guidance for the rational design of high-performance PEC biosensors and to promote their further development in applications of analysis.
