Chemical Science and Engineering is an international, peer-reviewed open access journal dedicated to advancing research the field of chemical 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: To further enhance the comprehensive experimental skills of undergraduate students and promote the concept of green chemistry education, we have developed a comprehensive undergraduate experiment focusing on acylhydrazide corrosion inhibitors for oilfield pipeline corrosion. Initially, a thorough analysis of corrosion factors and the mechanism of corrosion inhibition was conducted. Subsequently, the corrosion inhibition effect of acylhydrazide corrosion inhibitors was evaluated using the hydrazinolysis reaction between vegetable oil and hydrazine hydrate, employing both the static weight loss method and electrochemical techniques. The corrosion rate and corrosion inhibition rate of steel sheets immersed in simulated corrosion solutions were quantified. Moreover, dynamic potential polarization curve and electrochemical impedance spectroscopy were utilized to examine the performance of different concentrations of corrosion inhibitors in the simulated corrosion solution. This comprehensive experiment not only enables students to comprehend the corrosion inhibition mechanism of these inhibitors, but also equips them with knowledge of electrochemistry principles and the operational skills required for electrochemical workstations. Through numerical calculations and data analysis, students are able to evaluate the efficacy of various corrosion inhibitors and elucidate the underlying factors influencing parameter variations. The integration of organic chemistry knowledge with practical applications in oilfield chemistry elevates students' professional proficiency and their ability to adapt to real-world oilfield scenarios. Furthermore, this experiment enables students to proficiently employ corrosion evaluation methods and effectively process relevant data across different corrosive environments.Abstract: To further enhance the comprehensive experimental skills of undergraduate students and promote the concept of green chemistry education, we have developed a comprehensive undergraduate experiment focusing on acylhydrazide corrosion inhibitors for oilfield pipeline corrosion. Initially, a thorough analysis of corrosion factors and the mechanism of c...Learn More
Abstract: In this paper, the Ag@AgBr/Bi2Fe4O9 composite photocatalyst with different modified amounts was synthesized by hydrothermal method and in situ deposition-photoreduction method, and the surface morphology of the catalyst was characterized by SEM and other instruments, and it was found that the two composite photocatalysts were closely bonded and had a large contact area, which could effectively increase the reaction efficiency. We used the degradation efficiency of methylene blue (MB) solutions to analyze the photocatalytic activity of the catalyst. The results show that when the loading of Ag@AgBr is 20%, the degradation efficiency of Ag@AgBr/Bi2Fe4O9 on methylene blue solution within 2.5 h under visible light can be as high as 91.61%. The degradation rate of 20% Ag@AgBr/Bi2Fe4O9 was 2.98 times higher than Ag@AgBr and 7.85 times higher than that of Bi2Fe4O9. After that, we carried out cycling experiments on the composite photocatalyst with an appropriate amount of 20%, and found that its degradation effect did not decrease significantly. It has better stable performance; The quenching experiment of the composite photocatalyst showed that the main reaction substances degraded by the composite photocatalyst were • OH; At present, photocatalytic degradation still has certain limitations, but the emergence of composite photocatalysts has expanded the selection range of photocatalysts with excellent performance, has potential development space, and is of great significance for the rational exploitation and utilization of mineral resources at home and abroad and solving energy and environmental problems, which is worthy of our in-depth exploration.Abstract: In this paper, the Ag@AgBr/Bi2Fe4O9 composite photocatalyst with different modified amounts was synthesized by hydrothermal method and in situ deposition-photoreduction method, and the surface morphology of the catalyst was characterized by SEM and other instruments, and it was found that the two composite photocatalysts were closely bonded and had...Learn More
