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Chinese Journal of Chemical Education  
  Chinese Journal of Chemical Education--2016, 37 (22)   Published: 18 November 2016
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Chinese Journal of Chemical Education. 2016, 37 (22): 0-0.
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Review and Prospect of Molecular Machines:Introduction to Nobel Prize in Chemistry 2016

HUANG Fu, ZHAO Wei, CHE Yan-Ke, JIANG Hua
Chinese Journal of Chemical Education. 2016, 37 (22): 1-5. ;  doi: 10.13884/j.1003-3807hxjy.2016100077
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In 1983, Jean-Pierre Sauvage linked two ring-shaped molecules together to form a chain, called a catenane in which the two interlocked rings can move relative to each other. In 1991, Fraser Stoddart developed a rotaxane and displayed that the interlocked ring was able to move along the axle. Based on rotaxanes, he developed a few complex molecular machines, for instance, a molecular lift and a molecular muscle. In 1999, Bernard Feringa first developed a unidirectional, light-driven molecular motor which was further applied to design a nanocar.Sauvage,Stoddar and Feringa shared the Nobel Prize in chemisty in 2016 for the design and synthesis of molecular machines.

Exploration and Practice on Training Mode of Broad Categories in Secondary College

LIU Jie, SHENG Liang-Quan, ZHANG Hong, CHEN Shui-Sheng, LIU Zhao-Di, WEI Ying
Chinese Journal of Chemical Education. 2016, 37 (22): 6-10. ;  doi: 10.13884/j.1003-3807hxjy.2016020092
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According to the disadvantages existing in the current teaching management mode of "professional enrollment, specialty training" under credit system, this paper put forward the new mode of cultivating students in broad categories at the secondary college,explored a series of measures, including revising the teaching plan, integrating teaching resource, optimizing teacher resources and implementing small class teaching,and suggested the directions in future development of this secondary college.

Statistical Analysis on Research and Construction of Excellent Chemistry Courses

YU Chen-Xiu
Chinese Journal of Chemical Education. 2016, 37 (22): 11-14. ;  doi: 10.13884/j.1003-3807hxjy.2016030048
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Based on the information in iCourses website (excellent courses website of chinese universities)and the platform of lifelong learning courses,this paper carried out a comparative analysis on the research and construction of excellent courses of chemistry and basic chemistry in vocational and technical colleges and undergraduate collges. The results showed that the construction of excellent courses was greatly influenced by policies, there was a corresponding relation between level and grade of courses construction, and the construction of excellent courses was affected by the attributes of courses.

Small Thematic Teaching Method of Structural Chemistry

MA Juan, GAO Qing-Yu
Chinese Journal of Chemical Education. 2016, 37 (22): 15-18. ;  doi: 10.13884/j.1003-3807hxjy.2015120035
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According to the characteristics of structural chemistry and students' confusion in learning, this paper explored the small thematic teaching method of structural chemistry, and discussed the teaching situation from the aspects of teaching difficulties, basic conception, small thematic design and implementation, etc. Moreover, this paper proposed 24 new themes with guiding analysis. The results indicated that the small thematic teaching method was feasible and adjustable, which could effectively stimulate students' leaning initiative and cultivate students' comprehensive quality and ability.

Mathematical analysis of Thermodynamics Functions of Ideal Gas in Different Reversible Process

WEN Zu-Biao, ZENG Lin, XU Kang, ZHANG Lei
Chinese Journal of Chemical Education. 2016, 37 (22): 19-21. ;  doi: 10.13884/j.1003-3807hxjy.2016040078
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Several universal formulae of the thermodynamics functions of ideal gas in different reversible process were obtained by thermodynamics relation, and the formulae of its thermodynamics function in reversible isothermal process were deduced based on the obtained formulae by L Hospitals rule.

Development and Teaching Practice of HPLC-MS Experiment in Instrumental Analysis

LV Xiao-Li, GAO Qing-Yu
Chinese Journal of Chemical Education. 2016, 37 (22): 22-25. ;  doi: 10.13884/j.1003-3807hxjy.2016040005
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The scientific achievements were introduced into the instrumental analysis experiment teaching and the development of HPLC-MS experiment was described based on the hydrolysis of formamidine disulphide dihydrochloride. Students could solve the chemical problems by analytical chemistry methods in which species separation combined with species determination, data analysis combined with chemistry theory. The experiment could develop students' abilities of comprehensive analysis and stimulate their interests in scientific research.

Preparation of Visible-Light Photocatalyst Ag/Ag2O and Its Degradation Performance for Dyes

XU Ying, YU Huo-Gen, MO Yan-Ping, SONG Jia, LI Yong-An
Chinese Journal of Chemical Education. 2016, 37 (22): 26-29. ;  doi: 10.13884/j.1003-3807hxjy.2016020105
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The synthesis of visible-light photocatalyst Ag/Ag2O and its photocatalytic degradation performance for dye have been designed as an excellent comprehensive chemical experiment and its corresponding teaching plan was carefully introduced. Ag/Ag2O photocatalyst was prepared by a direct precipitation method to form Ag2O and then metallic Ag was in situ produced on the Ag2O surface under light irradiation owing to its self-decomposition property. The photocatalyst was characterized by field emission scanning electron microscopy (FESEM) and X-ray diffraction (XRD), and the decolorization experiment of methyl orange (MO) solution was employed to characterize the photocatalytic performance of Ag/Ag2O photocatalyst. The results showed that Ag/Ag2O photocatalyst exhibited excellent visible-light photocatalytic activity. The present experiment includes the basic knowledge of college chemistry and basic skills such as material synthesis and instrumental analysis, which is very important and necessary for students to improve their academic knowledge, innovative thinking and problem-solving skills.

Comparative Study Method in Chemistry Experiment Teaching with Example of Preparations of Cyclohexene and Isoamyl Acetate

HUANG Hong-Ling, LIU Jin-Chi, FAN Wen-Jie, WU Shao-Wei, TAN Da-Zhi
Chinese Journal of Chemical Education. 2016, 37 (22): 30-32. ;  doi: 10.13884/j.1003-3807hxjy.2016030019
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This paper introduced the experimental methods and operation steps of the synthesis of cyclohexene and isoamyl acetate, compared and analyzed the catalysts, equipment, end points and driers used in experiments. And this paper also discussed the correspondence between the properties, experimental methods, and operation steps. On the basis of the information provided by this study and combined with specific operations, students could better understand the contents of the chemical experiments, master the study methods for organic chemistry, as well as enhance their innovation ability and practical ability.

Potential Hazard of Asbestos Network Used in Laboratory

LI Jing
Chinese Journal of Chemical Education. 2016, 37 (22): 33-35. ;  doi: 10.13884/j.1003-3807hxjy.2016040080
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SEM-EDS and XRD were used to characterize asbestos network and the results showed that the mass fraction of chrysotile in asbestos network was above 30%. Chrysotile is easy to spread into the air, therefore, the health of students and teachers are threatened by chrysotile, after it is inhaled. So asbestos networks utilization should be banned or at least be controlled, and safety regulations are also needed urgently.

Construction of Chemical Education Master Courses Group

LIU Bao, CHEN Yu-Lin, CHEN Yan-Yuan
Chinese Journal of Chemical Education. 2016, 37 (22): 36-40. ;  doi: 10.13884/j.1003-3807hxjy.2016030083
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The selection of curriculum determined by the training goals of master, in order to further improve the quality of courses and training for chemical education master, the rectification for the original course contents is very necessary because of too many,complicated and miscellaneous. This paper constructed 5 courses groups with case teaching as the core, including educational theory, subject knowledge, teaching skills, teaching research, teaching practices.

Theory-Practice Alternative Advanced Teaching Mode for “Instrumental Analysis and Experiment” in Higher Vocational Education

DENG Dong-Li, WU Ming-Zhu, ZHOU Yong-Fu, LIU Ke-Jian
Chinese Journal of Chemical Education. 2016, 37 (22): 41-45. ;  doi: 10.13884/j.1003-3807hxjy.2016030060
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Through analyzing the characteristics of the teaching contents and teaching object of instrumental analysis, the traditional teaching methods were reformed. Considering the aspects of teaching system, teaching contents, teaching method, "instrumental analysis and experiment" was designed. According to the cognitive rules of students as the main body, theory-practice alternative advanced teaching mode was constructed analysis method.

Teaching Research on Mastery Learning of Students Based on “Five Docking”

MO Xiao-Wei
Chinese Journal of Chemical Education. 2016, 37 (22): 46-51. ;  doi: 10.13884/j.1003-3807hxjy.2015110010
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This paper took the foundation medical course biochemistry for nursing specialty of higher vocational college as a starting point, made the teaching case of Electrophoretic Separation of Serum Protein by Cellulose as an example to introduce the teaching of biochemistry, which based on the "five docking" mastery learning theory, then applied clinical knowledge into teaching reform. This study also analyzed mastery learning of students, and manner adopted by students for study achievement or teaching mode, so as to improve teaching quality and identify education reform method.

Application of Flipped Classroom in Experiment Courses of Sanitary Chemistry in Medical College

SHI Zhi-Xiong, HUANG Pei-Li, WANG Hui
Chinese Journal of Chemical Education. 2016, 37 (22): 52-56. ;  doi: 10.13884/j.1003-3807hxjy.2016070101
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A new teaching mode, flipped classroom, was conducted in the experiment course of sanitary chemistry, an obligatory course of preventive medicine in medical college. This paper introduced the flipped dassroom design of the experiment of "Determination of sorbic acid and benzoic acid in beverage by high performance liquid chromatography", including the design of learning task list, video production, classroom teaching and evaluation of education effect. In summary, the application of flipped classroom could stimulate the interests and initiative of students major in preventive medicine in learning sanitary chemistry. Furthermore, the flipped classroom transfered the student from learner to researcher, transfered the teacher from initiator to promoter and tutor. The independent learning ability, the spirit of innovation and cooperation of the students could be effective developed.

Application of Inquiry Learning in Teaching of Chemical Engineering Principles

TENG Bo-Tao, XIE Jian-Jian, FENG-Shan, LIU-Ya
Chinese Journal of Chemical Education. 2016, 37 (22): 57-60. ;  doi: 10.13884/j.1003-3807hxjy.2015110118
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This paper introduced the application of inquiry learning in teaching of chemical engineering principles with example of thermal conduction. Teachers proposed problems and students analyzed and initially solved these problems. Then teachers continued to extend the problems. Finally, teachers and students explored and summarized the study together. Results showed that inquiry learning could make students understand knowledge deeply and obtain good learning methods, and improve their ability to analyze and solve problems correspondingly during the inquiry learning process.

Teaching Reform of Analytical Chemistry for Pharmacy Major Based on Regional Features and Professional Characteristics

ZHANG Qiong-Yao, HAO Wei, CHEN Xiao-Bao
Chinese Journal of Chemical Education. 2016, 37 (22): 61-64. ;  doi: 10.13884/j.1003-3807hxjy.2016040059
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To train more practical pharmacy major students in line with regional features, the full range of teaching reforms were carried out in analytical chemistry course, including strengthening the training of basic knowledge and skills, designing experiment projects, changing the teaching methods, using different modules for different students. The investigation showed that these reforms enhanced teaching quality, initiated students' interests and improved their innovation ability.

Study on Innovative Experiment Project for Students in Biomaterial Specialty

XIE Li-Qin, CHEN Hong-Li, JING Chang-Qin, FENG Zhi-Wei
Chinese Journal of Chemical Education. 2016, 37 (22): 65-68. ;  doi: 10.13884/j.1003-3807hxjy.2016010040
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In order to promote college students to participate in innovative experiment project, our department has implemented a new management mode of tutorial system. According to the management mode, the undergraduates were organized to take part in the research training based on their interests and form a research team. Aim at culturing research interests, enhancing research training, increasing research accomplishments, achieving the combination of scientific theory and experimental operation, this paper illustrated the relative implementation proposals about biomaterial project application, organization and implementation,and achievement presentation.

Application of CurTiPot Software in Calculating pH

DU Xue-Hong, ZHANG Hong-Yi, YAO Qian-Qian, ZHAO Yun-Fei
Chinese Journal of Chemical Education. 2016, 37 (22): 69-72. ;  doi: 10.13884/j.1003-3807hxjy.2016020013
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This paper described the function of pH calculator from CurTiPot software widely applied for calculating the acidity of various solutions in recent years. It requires its users neither to have the knowledge of some specialized computer languages, nor to remember and input some complicated formulas. The software of CurTiPot could be freely downloaded and applied in MS Excel without installation. As the pH calculator function from CurTiPot can swiftly obtain accurate pH values for various solution systems, it is recommended as a new tool for acidity calculation during teaching and learning.

Accurate Titration Conditions for Distribution of Titration Based on Calculations of Range of Abrupt Change in Titration Curve

HE DE-Yong, LIU Li-Jun, KUANG Ren-Yun
Chinese Journal of Chemical Education. 2016, 37 (22): 73-76. ;  doi: 10.13884/j.1003-3807hxjy.2015120014
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The accurate titration conditions for polybasic weak acids are one of important problems for studying acid-base titration. Based on the calculations of range of abrupt change in titration curve, the accurate titration conditions for polybasic weak acids were discussed under the different titration end point errors. The results showed that the polybasic weak acids could be titrated accurately by distribution with Kai/Ka(i+1)≥105.0 and cKai≥10-8.7 under the conditions of Et=±0.5% and the range of abrupt change in titration curve for 0.4pH.

Study on Whether Volatile Liquid Can Form Fog

QIAO Jin-Suo, ZHANG Xiang-Zhong
Chinese Journal of Chemical Education. 2016, 37 (22): 77-78. ;  doi: 10.13884/j.1003-3807hxjy.2015100023
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The conditions for the fog formation from volatile liquid were studied by experiments and references. Results showed that humid air enviroment, high concentration, strong volatility of liquid and volatiles soluble in water are needed in this process. Furthermore, the formed hydrate should easily ionize and congeal into particle within a diameter from 10-3 cm to 10-7 cm.

RuiPing Chemical School:The Earliest Chemical College in China

Chinese Journal of Chemical Education. 2016, 37 (22): 79-81. ;  doi: 10.13884/j.1003-3807hxjy.2016020071
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Chinese Journal of Chemical Education. 2016, 37 (22): 18-18.
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