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Building upon the redox titration experiment using the potassium permanganate method, this paper innovatively integrates ideological and political elements into the experimental curriculum, with a focus on monitoring chemical oxygen demand (COD) levels in water. The case employs graded COD water samples as detection object, incorporates exploratory practices from industrial wastewater supervision, and explores case studies related to water pollution control. This approach not only guides students towards a deeper understanding of critical social issues like water pollution prevention but also fosters a heightened sense of responsibility for environmental protection and awareness of their role in advancing national ecological sustainability. [ABSTRACT FROM AUTHOR]

Analytical chemistry experiments are important foundational courses in the Chemistry and Chemical Engineering Basic Experimental Teaching Demonstration Center at Tianjin University. Integrating elements of dialectical materialism theory and other ideological and political education into this course is beneficial for helping students establish correct worldviews, life philosophies, and values, and achieve the teaching goal of moral education and character development in higher education institutions. This paper takes two redox titration experiments in analytical chemistry as examples and explores and practices teaching from three aspects: teaching design, experimental content, and teaching evaluation, with the guidance of course ideology and politics. It integrates ideological and political education throughout the entire process of teaching analytical chemistry experiments, combines ideological and political education with professional course education, and achieves the alignment of course teaching and moral education. [ABSTRACT FROM AUTHOR]

In this paper, the classic comprehensive organic synthesis experiment course, the synthesis of Benzocaine, has been redesigned and upgraded to an innovative experiment allowing for route design and condition optimization. Students are encouraged to conduct literature research, undertake comprehensive analyses, and evaluate synthesis strategies and specific experimental conditions. They are then tasked with proposing an experimental scheme that balances both macro (route) and micro (specific conditions) perspectives, overcoming the limitations and deficiencies of the original experiment. Depending on the students’ majors and training programs, certain or all “permissions” are granted for students, which enables students to start with different raw materials, design environmentally-friendly and efficient synthesis routes, determine specific experimental plans, and optimize the experimental conditions based on the model route. Beyond gaining foundational experimental operation skills, students embrace a heightened philosophy of green, efficient, and sustainable synthesis. The approach urges students to apply scientific thinking, incorporating cutting-edge academic achievements into experimental practices, thereby nurturing their scientific innovation capabilities. It also guides students to adopt a holistic perspective, enhancing their awareness of and capabilities in team collaboration. [ABSTRACT FROM AUTHOR]

Moral education is the fundamental mission of higher education institutions. Seamlessly integrating ideological and political elements into classroom instruction is beneficial for guiding students to establish a correct worldview, values, and life perspective, thereby becoming qualified successors of socialism. Taking Tu Youyou’s groundbreaking work on “artemisinin extraction” as an example, which led her to become the first Chinese native scientist awarded the Nobel Prize in science, this paper focuses on enhancing the teaching process concerning “the chemical potential of any component in an ideal-dilute solution”, by combining the principles of the “distribution law” outlined in the multi-component systems of thermodynamics. The aim is to help students fully appreciate both the direct guiding role that principles play in practical applications and the invaluable contribution traditional Chinese culture makes towards solving real problems. Furthermore, students could comprehend the inevitable trajectory of scientific discovery as well as the sacrifices and rewards that scientists experience in their continuous ascent to the peaks of scientific achievement. Ultimately, this approach will inspire students to love our motherland deeply and apply their acquired knowledge and wisdom towards contributing to the socialist development. [ABSTRACT FROM AUTHOR]

The BET (Brunauer-Emmett-Teller) theory of multimolecular adsorption is abstract yet widely applicable, and its equation involves complex mathematical derivations that are often difficult for students to grasp. Consequently, students may struggle to correctly interpret adsorption-desorption isotherms and specific surface area data generated by automated specific surface analyzers, leading to unsatisfactory educational outcomes. This paper introduces the use of computer simulations to model the adsorption-desorption process of gas molecules on solid surfaces. By adjusting the adsorption-desorption constants, the simulations can generate Type I, II, and III adsorption isotherms. The real-time visualization allows students to intuitively understand the dynamics of gas molecule adsorption and desorption on solid surfaces, thereby enhancing their comprehension of BET theory. The incorporation of computer simulation into teaching not only enlivens the classroom environment but also fosters an interactive teaching-learning experience, stimulating students' curiosity and research interest while improving the overall quality of education. [ABSTRACT FROM AUTHOR]

Taking the explanation of heat conduction in the heat transfer chapter of the chemical engineering transmission course as an example, this paper expounds on innovative teaching considerations based on the "fun, learn, apply" three-level teaching method. It analyzes the transient and steady-state heat transfer processes in cooking, increasing the interest in teaching. At the same time, analogical teaching is conducted, from heat transfer analogy to mass transfer processes, allowing students to learn the similarity between heat transfer and mass transfer. Furthermore, the analogy of heat and mass transfer is further extended to the synthesis of new materials, enabling students to apply the knowledge learned. [ABSTRACT FROM AUTHOR]

Based on matrix multiplication, the third symmetric operation, which is equivalent to the product of different symmetric operations, was deduced in this paper. Furthermore, it was proposed how the group containing different symmetric elements can be derived from the direct product of its subgroups. At the same time, the new symmetric elements can be derived from the multiplication of its group elements. [ABSTRACT FROM AUTHOR]

Traditional luminescent materials often suffer from aggregation-caused quenching effects, diminishing the appeal of experimental instruction. The development of unconventional fluorescent materials is therefore of utmost research importance. This paper presents a series of fluorescent molecules with acrylonitrile structures, synthesized via Knoevenagel condensation reactions. By incorporating the cutting-edge science of aggregation-induced emission (AIE), led by Chinese scientists, into experimental teaching, we can effectively bolster students' national pride. Through this experiment, students will not only learn the mechanism of the Knoevenagel condensation reaction and master basic organic experimental operations, but also enhance their interest in learning, cultivate scientific thinking, and contribute to the ideological and political construction of the organic experiments course. [ABSTRACT FROM AUTHOR]

Expanding upon the "Basic Physical Chemistry Laboratory" module focused on the measurement of primary battery electromotive force (EMF), this paper introduces a novel experimental design. The design incorporates the often-neglected liquid junction potential, investigating its relationship with reversible battery EMF and the total EMF of the primary battery. The revised apparatus is cost-effective, straightforward, and offers stable and reproducible measurements for liquid junction potential. This improved experiment provides a more comprehensive and accurate representation of the components contributing to the total EMF of the primary battery, transcending the limitations of merely measuring reversible battery EMF. As a result, the experiment aids students in forming a well-rounded and accurate understanding of primary batteries and the underlying principles of electrochemistry. Furthermore, the measured liquid junction potential is applicable in calculating ion transference numbers, allowing for the integration of this advanced concept into the curriculum and thereby bolstering students' comprehensive skill set. [ABSTRACT FROM AUTHOR]

The Beckmann rearrangement, a pivotal reaction wherein carbonyl-rich aldehydes and ketones engage with hydroxylamines to forge organoximes, undergoes a rearrangement in the catalyst's presence and holds significant importance in organic synthesis. Addressing the perceptual gaps in understanding the experimental principles and the insufficient verification of reaction mechanisms during the instruction of Beckmann rearrangement of organoximes, this study utilizes the reaction between benzophenone and hydroxylamine hydrochloride. This reaction results in benzophenone oxime, which undergoes molecular rearrangement catalyzed by polyphosphoric acid to produce benzoyl aniline. This exercise adeptly interweaves elements from inorganic, analytical, and instrumental analysis chemistry, augmenting holistic design and innovative capabilities of students. Employing tools like melting point assessment, infrared spectroscopy, and nuclear magnetic resonance, this study elucidates the nuanced structures of both intermediate and final products. By juxtaposing macroscopic physicochemical attributes with their microscopic counterparts, it robustly deciphers and authenticates the underlying reaction mechanism, enhancing the pedagogical efficacy of the Beckmann rearrangement and kindling innovative sense. This paper can serve as a reference for comprehensive and design-focused experiments on oxime-type Beckmann rearrangements, and also provide valuable insights for the enhancement of teaching materials and experimental procedures. [ABSTRACT FROM AUTHOR]

This paper builds upon the university chemistry experiment "Electrochemical Preparation of Conductive Polymers". By incorporating molecularly imprinted polymers and elements of food safety, a simple task-oriented preparation experiment has been successfully transformed into a comprehensive experiment that combines the preparation of molecularly imprinted conductive polymers, performance characterization, and the highly selective detection of stimulants in beverages. The enriched and improved experiment content is engaging, relevant to realworld scenarios, and introduces cutting-edge analytical techniques, aiming to enhance students' integrated skills and fostering scientific thinking. [ABSTRACT FROM AUTHOR]

Under the dual pressure of increasing energy demand and achieving dual carbon goals, developing clean energy is extremely urgent. Hydrogen energy stands out from all kinds of energy carriers with its unique advantages. In the future, hydrogen cycle is expected to facilitate carbon cycle to achieve dual carbon goals. This paper is focused on the hydrogen production in the hydrogen cycle. Two methods of hydrogen generation via photovoltaic electrocatalysis and photocatalysis are introduced in detail. In addition, popular science programs for different groups of people are designed, which will make them learn about the advantages of green hydrogen production via photochemistry and the significance of developing hydrogen energy. [ABSTRACT FROM AUTHOR]

Different from the basic chemistry experiment course in the lower grades of the university, the higher grades offer self-designed experiments, focusing on independent thinking and active exploration. Taking the "determination of N content in TiCN-based alloys" as an example, this paper introduces the whole process of selfdesigned experiments, including the digestion of solid samples, the extraction of substances to be measured, analysis and testing, data processing and evaluation, and introduces theoretical knowledge into practical problems, and uses experimental methods to deeply integrate the two, improving students' ability to judge, solve problems and comprehensive quality. [ABSTRACT FROM AUTHOR]

At present, commercial systems are usually used in pressure swing adsorption (PSA) experiments. However, the purchased equipment has disadvantages such as large size, complicated tubing design and high price, which are not conducive to undergraduate laboratory teaching. In this paper, a low-cost benchtop design of PSA system is proposed, with which students can build their own PSA equipment with common laboratory materials and conduct the testing and operation on their own. Using Li-exchanged zeolite as the adsorbent, the system can produce high-purity oxygen with a concentration up to 95.8%, which is comparable to that of commercial oxygen concentrator. The designed system can be disassembled and reassembled repeatedly and the process of building and testing is safe and fun. The proposed design can be used in the PSA experimental teaching for undergraduate students who major in applied chemistry, chemical engineering and other related subjects. We believe that students' interest in creating experimental equipment can be intrigued and their ability to solve practical problems can be improved during the build and testing process of the proposed PSA system. [ABSTRACT FROM AUTHOR]

This paper introduces a college comprehensive chemical experiment about the synthesis, characterization and luminescence measurement of long-persistent phosphors. The experiment covers various aspects, including the preparation of spinel structure alkaline earth aluminate phosphors, phase and luminescent properties characterization, and so on. The experimental process is not only safe, but also fast, simple, easy to operate, and visually appealing. By actively engaging in this experiment, students can gain a better understanding of the physical and chemical mechanisms involved in solution combustion reactions, as well as enhance their practical laboratory skills. Furthermore, it serves as a platform to showcase the beauty of chemistry, unravel the limitless allure of science, and ignite students' curiosity for scientific research. [ABSTRACT FROM AUTHOR]

In this paper, two kinds of functional dyes with both photoluminescence and chemiluminescence properties were synthesized under the same reaction conditions through a micro-reaction of tens of milligrams. Red dyes have red light emitting properties, while blue dyes have near infrared emitting properties. The ultraviolet-visible absorption spectrum, fluorescence emission spectrum and chemiluminescence spectrum were measured by ultraviolet spectrometer and fluorescence spectrometer. In this experiment, the progress of the reaction was monitored by thinlayer chromatography, and the product was separated and purified by preparative thin-layer chromatography to minimize the possible pollution caused by dye synthesis. The photoluminescence phenomenon can be visually observed by using red and green laser pointers to irradiate the dye solution and the dye-containing film respectively. Green laser light can be absorbed by red dyes and converted into red light through the phenomenon of photoluminescence. The red laser can be directly converted into near-infrared luminescence by near-infrared luminescent dyes. In the chemiluminescent system, the two dyes emit bright red light and near-infrared light, respectively. This experiment introduces optical functional materials into undergraduate teaching experiments, which not only trains students' micro-organic synthesis and separation techniques, but also stimulates students' curiosity and enhances the fun of experiments. [ABSTRACT FROM AUTHOR]

Olefins are a very important class of compounds, which can be transformed to various complex organic molecules through a series of transformations. In this paper, C―C cross coupling reaction based on olefinic C―H bond activation is described in detail. Based on the activation of C―H bonds, C―C bonds are constructed through C―C cross coupling reaction by transition metal catalysts such as Rh, Pd and Co. This introduction of olefinic C―H bond activation can enrich and expand the knowledge of olefins in organic chemistry courses, and it is also helpful for students to understand the forefront of organic chemistry development, stimulate their learning enthusiasm and initiative, and cultivate their scientific research literacy. [ABSTRACT FROM AUTHOR]

With the advent of ChatGPT-4, the development and application of artificial intelligence (AI) technology have entered a new era, inevitably exerting a profound impact on the cultivation of modern scientific and technological talents. This paper begins by offering an overview of AI technology and its application in chemical research. It then discusses the updated criteria essential for fostering innovation ability of chemistry students in this new age of AI. Finally, the exploration and practice undertaken in the teaching reform for cheminformatics are presented. [ABSTRACT FROM AUTHOR]

The newly published "Organic Chemistry Experiment (6th Edition)" from Dalian University of Technology combines both printed textbook and online digital resources. The online resources integrate the content from the teaching CD and website resources in 5th edition, alongside newly developed digital resources for 6th edition, to enhance and expand the printed version. The textbook newly presents 14 fundamental experiments in topics about reaction mechanism verification, visualized synthesis, Huang Minglong's reduction, and olefin interchange etc. Additionally, it includes 3 comprehensive experiments: natural cinnamaldehyde extraction and hydroxyaldehyde condensation, proline-catalyzed asymmetric synthesis and LED photocatalytic luminescent material preparation. All new experiments draw from domestic and international experimental teaching papers. Moreover, A design-oriented experiment on industrial flavor esters using the Fischer esterification synthesis, as well as a research-oriented experiment which optimizing the reaction condition for the microwave-assisted Williamson synthesis of 4-nitrophenethyl ether, are also dicussed. The 6th edition textbook establishes a personalized learning platform fostering students' experimental abilities and cultivating a rigorous and innovative style of study. [ABSTRACT FROM AUTHOR]