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生物质石墨烯/LaFeO3纳米复合材料的光催化活性
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作者 矫立志 张京茹 +4 位作者 董抒华 王靖朝 谷国华 陈川东 魏春城 《人工晶体学报》 EI CAS 北大核心 2020年第1期56-61,共6页
采用两步法制备生物质石墨烯/LaFeO3纳米复合材料(石墨烯加入量分别为LaFeO3的1%、3%、5%、7%),应用差热-热重分析、X射线衍射(XRD)、扫描电子显微镜(SEM)等测试手段对生物质石墨烯/LaFeO3纳米复合材料样品的物相及微观结构进行了表征;... 采用两步法制备生物质石墨烯/LaFeO3纳米复合材料(石墨烯加入量分别为LaFeO3的1%、3%、5%、7%),应用差热-热重分析、X射线衍射(XRD)、扫描电子显微镜(SEM)等测试手段对生物质石墨烯/LaFeO3纳米复合材料样品的物相及微观结构进行了表征;采用傅里叶变换红外光谱仪对样品进行了红外分析(FTIR);研究了生物质石墨烯加入量对生物质石墨烯/LaFeO3复合材料降解亚甲基蓝光催化降解率的影响。结果表明:通过两步法所制备的生物质石墨烯/LaFeO3纳米光催化剂稳定性好,具有高效光催化活性;生物质石墨烯的加入提高了LaFeO3对亚甲基蓝的光催化降解率;采用175 W荧光高压汞灯光照30 min时,加入7%生物质石墨烯的LaFeO3样品对亚甲基蓝的光催化降解率最高达到56%,比纯LaFeO3光催化降解率高出50%。 展开更多
关键词 LAFEO3 柠檬酸络合法 生物质石墨烯 光催化活性
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Research on Gymnastics Textbooks for Physical Education Major in Regular Colleges and Universities
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作者 jiao lizhi 《International Journal of Technology Management》 2016年第5期61-63,共3页
As an important part of physical education in regular colleges and universities, gymnastics has played an active role in the development of physical education in colleges and universities. Gymnastics textbooks used in... As an important part of physical education in regular colleges and universities, gymnastics has played an active role in the development of physical education in colleges and universities. Gymnastics textbooks used in regular colleges and universities has experienced decades of development and needs to be revised and improved under the current physical education situation in colleges and universities, so as to make the content more suitable for needs of college students. This paper adopts literature review, comparative analysis and statistics analysis method to study on the existing gymnastics textbook for physical education major in regular colleges and universities in China by combing development of textbook, summarizing the content and structure, exploring problems existing in the design of textbook in recent years, and then proposing certain improvement suggestions on gymnastics textbook for physical education major. 展开更多
关键词 REGULAR COLLEGES and UNIVERSITIES PHYSICAL education GYMNASTICS TEXTBOOK
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A research on the composing of sub-health people’s hygienic gymnastics
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作者 jiao lizhi 《International Journal of Technology Management》 2016年第6期63-65,共3页
according to statistics, 70 percent of Chinese people are in sub-health, so the health care for them should be payed more attention. In recent years, researches on sub-health people has increased and the classifi cati... according to statistics, 70 percent of Chinese people are in sub-health, so the health care for them should be payed more attention. In recent years, researches on sub-health people has increased and the classifi cation, diagnose for sub-health people’s current situation has entered an area of researching. Among them, the research of sub-health people’s infl uence on society stands out, because the occupational group is tightly related to the promotion of social economic development and stability. Hygienic gymnastics will help to improve sub-health situation and it still need to conduct relatively composing and completing. In this paper, questionnaire method and literature method are used to carry out investigation and analysis on sub-health people and therefore, the hygienic gymnastics for sub-health improving is composed and summarized. 展开更多
关键词 SUB-HEALTH hygienic GYMNASTICS composing THINKING METHOD
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Research on the Employment and Social Demands-oriented Educational and Teaching Reform
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作者 jiao lizhi 《International Journal of Technology Management》 2016年第7期18-20,共3页
As the social employment situation is getting grueling, the issue of the diffi cult employment of students has become increasinglysalient. It is of prime importance to resolve these issues through educational and teac... As the social employment situation is getting grueling, the issue of the diffi cult employment of students has become increasinglysalient. It is of prime importance to resolve these issues through educational and teaching reform under such urgent situation. Therefore,educational institutions and departments should re-position the teaching model according to employment and social demands to explore afeasible educational and teaching model and provide an effective approach to the increasing employment rate of graduates. From the perspectiveof employment and social demands, this paper offers a study of the educational and teaching model in colleges and universities on this basisand proposes relevant suggestions for the employment of college students with a view to provide concrete help for the alleviation of college students’ employment pressure. 展开更多
关键词 Employment of College Students Social Demands Educational and Teaching Reform
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