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7. Study on the Design of college students’ Employment courses

Author

Liu Weiqiao and Wang Lin

Subjects
Social Sciences
Abstract

with social development and technological progress, higher standards and requirements are constantly put forward for talents. traditional employment courses have problems such as lack of pertinence, single content, lack of practice, and lack of communication between teachers and students, which cannot meet the needs of students for employment-related knowledge. centering on students’ career development, the paper designs courses from five aspects: reforming the content and form of employment guidance courses, strengthening the construction of employment guidance service teachers, establishing and perfecting the extracurricular normal personalized employment guidance system, cultivating graduates’ ability to independently plan for the future, and exploring the whole-cycle personalized employment guidance service system.

Published
2023
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9. Study on selective adsorption and separation of dysprosium by a multi-template oriented imprinted composite membrane

Author

Wang, Wenda, Yuan, Jiachen, Jiang, Yue, and Liu, Weiqiao

Abstract

Dysprosium (Dy) ion has Received widespread attention in industrial applications due to its unique physical and chemical properties. The potential economic value of adsorbing and separating rare earth Dy ions from waste permanent magnets is high. We use graphene oxide as the material to prepare the membrane for selective adsorption of Dy. Graphene oxide has high stability, its structure is two-dimensional plane, and it has high acid and alkali resistance. At suitable pH conditions, the prepared membranes can have high selective adsorption properties to Dy ions by ionic imprinting. A series of studies on the effects of various pH on the adsorption effect, isotherm, kinetics, and competitive adsorption and so on were carried out. The model of selective adsorption of Dy ions was proposed to obtain membrane materials with good selectivity and good separation. We found that at pH = 5.0, the adsorption performance of the membrane for Dy ions was the best, and the adsorption reached equilibrium after 2 h of adsorption. The maximum adsorption amount reached 26.27 mg g–1. The membrane has high acid resistance and high adsorption selectivity to Dy ions.

Published
2021
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