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1.
采用光沉积-液相化学法调节电子流向,构建了直接Z型TiO2/Ag/Ag3PO(4 )(TAAPO)光催化材料.通过扫描电子显微镜(SEM)、透射电子显微镜(TEM)、X射线衍射仪(XRD)、X射线光电子能谱(XPS)、紫外-可见漫反射光谱仪以及光致发光(PL)光谱仪等手段对其进行表征,并对其在可见光照射下催化降解环丙沙星(CIP)的性能进行了研究.结果表明,当水体pH为3.0,催化剂分散浓度为0.3 g/L,CIP的初始浓度为15 mg/L时,光催化降解体系能够取得最佳的去除效果.在该组条件下,光照120 min CIP的降解率约为99%,并且在经历4个循环后仍然保持了良好的降解效果.在光催化降解CIP的过程中,主要反应活性物种为超氧自由基(·O2 相似文献
2.
采用光沉积-液相化学法调节电子流向,构建了直接Z型TiO2/Ag/Ag3PO(4 )(TAAPO)光催化材料.通过扫描电子显微镜(SEM)、透射电子显微镜(TEM)、X射线衍射仪(XRD)、X射线光电子能谱(XPS)、紫外-可见漫反射光谱仪以及光致发光(PL)光谱仪等手段对其进行表征,并对其在可见光照射下催化降解环丙沙星(CIP)的性能进行了研究.结果表明,当水体pH为3.0,催化剂分散浓度为0.3 g/L,CIP的初始浓度为15 mg/L时,光催化降解体系能够取得最佳的去除效果.在该组条件下,光照120 min CIP的降解率约为99%,并且在经历4个循环后仍然保持了良好的降解效果.在光催化降解CIP的过程中,主要反应活性物种为超氧自由基(·O2 相似文献
3.
采用光沉积-液相化学法调节电子流向,构建了直接Z型TiO2/Ag/Ag3PO(4 )(TAAPO)光催化材料.通过扫描电子显微镜(SEM)、透射电子显微镜(TEM)、X射线衍射仪(XRD)、X射线光电子能谱(XPS)、紫外-可见漫反射光谱仪以及光致发光(PL)光谱仪等手段对其进行表征,并对其在可见光照射下催化降解环丙沙星(CIP)的性能进行了研究.结果表明,当水体pH为3.0,催化剂分散浓度为0.3 g/L,CIP的初始浓度为15 mg/L时,光催化降解体系能够取得最佳的去除效果.在该组条件下,光照120 min CIP的降解率约为99%,并且在经历4个循环后仍然保持了良好的降解效果.在光催化降解CIP的过程中,主要反应活性物种为超氧自由基(·O2 相似文献
4.
《江西图书馆学刊》2014,(4):9-12
采用光沉积-液相化学法调节电子流向,构建了直接Z型TiO2/Ag/Ag3PO(4 )(TAAPO)光催化材料.通过扫描电子显微镜(SEM)、透射电子显微镜(TEM)、X射线衍射仪(XRD)、X射线光电子能谱(XPS)、紫外-可见漫反射光谱仪以及光致发光(PL)光谱仪等手段对其进行表征,并对其在可见光照射下催化降解环丙沙星(CIP)的性能进行了研究.结果表明,当水体pH为3.0,催化剂分散浓度为0.3 g/L,CIP的初始浓度为15 mg/L时,光催化降解体系能够取得最佳的去除效果.在该组条件下,光照120 min CIP的降解率约为99%,并且在经历4个循环后仍然保持了良好的降解效果.在光催化降解CIP的过程中,主要反应活性物种为超氧自由基(·O2 相似文献
5.
《江西图书馆学刊》2014,(4):71-76
采用光沉积-液相化学法调节电子流向,构建了直接Z型TiO2/Ag/Ag3PO(4 )(TAAPO)光催化材料.通过扫描电子显微镜(SEM)、透射电子显微镜(TEM)、X射线衍射仪(XRD)、X射线光电子能谱(XPS)、紫外-可见漫反射光谱仪以及光致发光(PL)光谱仪等手段对其进行表征,并对其在可见光照射下催化降解环丙沙星(CIP)的性能进行了研究.结果表明,当水体pH为3.0,催化剂分散浓度为0.3 g/L,CIP的初始浓度为15 mg/L时,光催化降解体系能够取得最佳的去除效果.在该组条件下,光照120 min CIP的降解率约为99%,并且在经历4个循环后仍然保持了良好的降解效果.在光催化降解CIP的过程中,主要反应活性物种为超氧自由基(·O2 相似文献
6.
采用光沉积-液相化学法调节电子流向,构建了直接Z型TiO2/Ag/Ag3PO(4 )(TAAPO)光催化材料.通过扫描电子显微镜(SEM)、透射电子显微镜(TEM)、X射线衍射仪(XRD)、X射线光电子能谱(XPS)、紫外-可见漫反射光谱仪以及光致发光(PL)光谱仪等手段对其进行表征,并对其在可见光照射下催化降解环丙沙星(CIP)的性能进行了研究.结果表明,当水体pH为3.0,催化剂分散浓度为0.3 g/L,CIP的初始浓度为15 mg/L时,光催化降解体系能够取得最佳的去除效果.在该组条件下,光照120 min CIP的降解率约为99%,并且在经历4个循环后仍然保持了良好的降解效果.在光催化降解CIP的过程中,主要反应活性物种为超氧自由基(·O2 相似文献
7.
采用光沉积-液相化学法调节电子流向,构建了直接Z型TiO2/Ag/Ag3PO(4 )(TAAPO)光催化材料.通过扫描电子显微镜(SEM)、透射电子显微镜(TEM)、X射线衍射仪(XRD)、X射线光电子能谱(XPS)、紫外-可见漫反射光谱仪以及光致发光(PL)光谱仪等手段对其进行表征,并对其在可见光照射下催化降解环丙沙星(CIP)的性能进行了研究.结果表明,当水体pH为3.0,催化剂分散浓度为0.3 g/L,CIP的初始浓度为15 mg/L时,光催化降解体系能够取得最佳的去除效果.在该组条件下,光照120 min CIP的降解率约为99%,并且在经历4个循环后仍然保持了良好的降解效果.在光催化降解CIP的过程中,主要反应活性物种为超氧自由基(·O2 相似文献
8.
采用光沉积-液相化学法调节电子流向,构建了直接Z型TiO2/Ag/Ag3PO(4 )(TAAPO)光催化材料.通过扫描电子显微镜(SEM)、透射电子显微镜(TEM)、X射线衍射仪(XRD)、X射线光电子能谱(XPS)、紫外-可见漫反射光谱仪以及光致发光(PL)光谱仪等手段对其进行表征,并对其在可见光照射下催化降解环丙沙星(CIP)的性能进行了研究.结果表明,当水体pH为3.0,催化剂分散浓度为0.3 g/L,CIP的初始浓度为15 mg/L时,光催化降解体系能够取得最佳的去除效果.在该组条件下,光照120 min CIP的降解率约为99%,并且在经历4个循环后仍然保持了良好的降解效果.在光催化降解CIP的过程中,主要反应活性物种为超氧自由基(·O2 相似文献
9.
《江西图书馆学刊》2014,(4):77-81
采用光沉积-液相化学法调节电子流向，构建了直接Z型TiO2/Ag/Ag3PO(4 )(TAAPO)光催化材料.通过扫描电子显微镜(SEM)、透射电子显微镜(TEM)、X射线衍射仪(XRD)、X射线光电子能谱(XPS)、紫外-可见漫反射光谱仪以及光致发光(PL)光谱仪等手段对其进行表征，并对其在可见光照射下催化降解环丙沙星(CIP)的性能进行了研究.结果表明，当水体pH为3.0,催化剂分散浓度为0.3 g/L,CIP的初始浓度为15 mg/L时，光催化降解体系能够取得最佳的去除效果.在该组条件下，光照120 min CIP的降解率约为99%,并且在经历4个循环后仍然保持了良好的降解效果.在光催化降解CIP的过程中，主要反应活性物种为超氧自由基(·O2 相似文献
10.
采用光沉积-液相化学法调节电子流向,构建了直接Z型TiO2/Ag/Ag3PO(4 )(TAAPO)光催化材料.通过扫描电子显微镜(SEM)、透射电子显微镜(TEM)、X射线衍射仪(XRD)、X射线光电子能谱(XPS)、紫外-可见漫反射光谱仪以及光致发光(PL)光谱仪等手段对其进行表征,并对其在可见光照射下催化降解环丙沙星(CIP)的性能进行了研究.结果表明,当水体pH为3.0,催化剂分散浓度为0.3 g/L,CIP的初始浓度为15 mg/L时,光催化降解体系能够取得最佳的去除效果.在该组条件下,光照120 min CIP的降解率约为99%,并且在经历4个循环后仍然保持了良好的降解效果.在光催化降解CIP的过程中,主要反应活性物种为超氧自由基(·O2 相似文献
11.
ABSTRACTThis study used a quantitative survey to investigate the knowledge and use of online databases and the library's online public access catalog by final-year business associate degree students in five selected Jamaican community colleges. The study sought to determine students’ knowledge of electronic library resources, their value for electronic and print resources, the purposes for which students use electronic library resources, the influences on student use of electronic library resources, and the effects of training and instruction. Results from the study indicated that students are increasingly using Internet search engines for research purposes rather than online databases. Results also indicated that electronic library resources such as the OPAC are being underutilized by community college students. It was evident that proper instructional guidance is needed and welcomed by students. The findings of the study are critical to the implementation of policies and procedures geared toward sensitizing school administrators, library professionals, and other stakeholders to the benefits of increasing students’ knowledge and use of electronic library resources. Data will aid administrators in strategic planning and investments pertaining to these resources, and provide recommendations to improve knowledge and use of these resources within libraries. The research illustrates the special needs of community college students in Jamaica, particularly relating to needed instructional programs, in an effort to impart knowledge and promote the use of electronic library resources in these colleges. 相似文献
12.
This paper presents qualitative findings about the search behaviors and research habits of students interviewed at six college and university campuses in the US. Our findings suggest that students’ strategies are influenced by both their non-academic search experiences as well as the broader academic context of their research tasks. Their behaviors suggest an on-going negotiation of these influences, evidenced by the ways they incorporate Google into their research strategy while still closely adhering to faculty instruction for using library resources. Students bring a strong sense of self-reliance to the research process, yet they still experience many barriers and pain points accessing library resources. We have included recommendations for librarians and faculty who, by better understanding the journey of an academic researcher, can work in concert to reduce the barriers and increase the success of students’ research efforts. 相似文献
13.
《The Reference Librarian》2013,54(69-70):63-68
Summary The growth of adult education on college campuses is significantly affecting college and university libraries which now must deal with issues surrounding adult and distance education, along with the proliferation of information resources and unprecedented technological change. Desktop provision of licensed electronic library resources, along with Web-based tutorials, Web-based pathfinders, and skillful mediation of electronic reference questions can help alleviate anxiety, saving valuable time for non-resident, non-traditional students by enabling them to access and utilize remotely accessible electronic library resources effectively. 相似文献
14.
《Journal Of Access Services》2013,10(1):41-62
ABSTRACT This paper reports the results of a survey of student satisfaction with electronic library resources other than the online catalog at Wayne State University. Undertaken in Fall Term 2000 as a class project for a marketing course, a student team designed, administered, and analyzed a survey of a random sample of students. Almost 40% of the responding students said that they were unaware of electronic resources though 53.8% of these same students answered subsequent questions about use of these resources. Students aware of electronic resources learned about them much more from their professors (38.3%) than from library efforts to publicize them (18.5%). Students were generally satisfied (68%) except when things went wrong. A high percentage of all students (92.4%) answered that the library should continue to expand electronic resources. 相似文献
15.
Appleton L 《Health information and libraries journal》2004,21(4):245-252
The objectives of this paper are: (i) to illustrate the use of e-books by health studies students at a college of higher education; (ii) to provide a demonstration of how e-books may be facilitated by library and information services staff working across the health and academic sectors; (iii) to comment upon the experiences of health studies students, in using e-books. A focus group of 10 student midwives was used to gain insight into how e-books may be used in an academic context for health professionals. The findings of the student midwives' focus group are reported and discussed. In this instance, the student midwives were encouraged to use e-books as part of a structured information skills programme. The paper concentrates on how the e-books were used within this context and addresses the potential benefits and disadvantages from a student perspective. The results provide evidence of a largely positive experience of using e-books as an electronic information resource. The focus group reveals many benefits and advantages in the facilitation and use of e-books, as well as addressing areas for development. It is concluded that e-books have a place in health library and information resources, but further development of e-books and e-book collections is required and subsequent investigation into their most effective use. 相似文献
16.
17.
Brad Vogus 《Public Services Quarterly》2019,15(3):242-247
Librarians have a role in working with faculty to provide low-cost alternatives to textbooks. Open educational resources (OER) are an alternative to textbooks in college courses, but there can be barriers to using OER. Are students successful in OER courses? Do faculty see librarians as collaborators in designing courses using OER? What are some alternatives to OER that libraries and library consortia can take advantage of to make college more affordable for students? The following articles address these issues, and the work of the following authors can benefit all types of academic librarians as they contemplate their role in the OER world. 相似文献
18.
人力资源、电子资源和就业服务是构建当前体育院校图书馆核心竞争力的主要因子。研究认为,体育院校图书馆人才不仅要具备图书情报学的专门知识、体育学科发展的脉络和方向,而且还要善于不断更新自己的知识,担当起日趋专深的参考咨询工作的重任,为决策者提供准确而精到的信息服务;在经费允许的前提下,体育院校图书馆应立足重点领域教学科研的需要,兼顾其他学科,确保综合性学科电子资源的采购,并且保持其延续性,形成自己的馆藏特色,充分发挥体育院校图书馆服务于学生就业的职能。 相似文献
19.
《The Journal of Academic Librarianship》2021,47(6):102460
This paper demonstrates how university students experienced and perceived inclusion in a public research university library context during COVID-19. Both quantitative (n = 3379) and qualitative data (n = 575) from the 2021 student survey were examined to explore students' library experiences and their perceptions of inclusion. The quantitative data revealed that students using both the physical and online library had the greatest sense of belonging, whereas students who never used any library resources had the least sense of belonging. The qualitative data further revealed that when students used the in-person library space they felt a sense of belonging, as well as feeling accepted and valued; on the other hand, it was hard for them to judge inclusion when they had not been in the library due to COVID-19. This finding suggests how academic libraries need to prepare for the hybrid environment (in-person and online) so that students using online resources and services feel connected to the library. 相似文献
20.
This research examines performing art students' preferences for accessing various types of information, factors in their selection process, and their opinions on what the library should purchase. A Performing Arts Library at a large public university created a two-page paper survey, which was completed by 182 students studying music, dance, and/or theater. Results indicated that these students preferred print books and scores, as well as electronic access to journals and audio. There was an approximate split for physical and virtual reference and video materials. The data also suggests that, while students support the trend of more electronic access, they want librarians to continue to acquire a mixture of electronic and traditional resources. 相似文献