http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : XIAOLEI SI (검색결과 2 건)
- 무료
- 기관 내 무료
- 유료
-
XIAOLEI SI,GUANGLIANG CHEN,Zhili Chen,JUN HUANG 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2014 NANO Vol.9 No.8
In this paper, a highly catalytic and nanosized Ag/Co3O4 composite for rhodamine B (RhB) degradation was fabricated by using the co-precipitation method at room temperature. The Ag/Co3O4 structure and catalytic properties were characterized through scanning electron microscopy (SEM), transmission electron microscopy (TEM), Brunauer–Emmett–Teller (BET) gassorption measurements, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and UV-Vis spectroscopy. The results showed that the Co3O4 nanosheets prepared by hydrothermal synthesis mainly exposed (2 2 0) and (1 1 1) facets, which played an important role in determining its catalytic oxidation performance. The Co3O4 nanosheets doped with Ag nanoparticles by a simple silver-mirror reaction exhibited a stable and well-dispersed property in dye solution. Compared to the Ag and Co3O4 nanostructure, the Ag nanoparticles with bigger diameter (10 nm) on Co3O4 surface also readily produced surface-active oxygen species and exhibited a higher catalytic activity for the degradation of RhB solution (5 mg·L-1) under the visible light. The kinetic constant K of Ag/Co3O4 catalyst for RhB degradation reaction was evaluated to0.02724 min-1, which is relatively higher than those reported in the literatures.
-
GUANGLIANG CHEN,FEI XUE,ZHILI CHEN,XIAOLEI SI,JUN HUANG,XU ZHENG,SYLVAIN MASSEY 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2014 NANO Vol.9 No.3
In this paper, homogenous gold nanoparticles (AuNPs) with a high density and a narrow sizedistribution were successfully fabricated on titanate nanowires (TNWs) sca®olds in the absenceof organic capping agents. An ameliorated low-temperature hydrothermal method was used toprepare the TNWs sca®olds like bird's nest on the Ti substrate, and the nanowires diameter wasabout 30 – 80nm. Then, AuNPs were synthesized on the TNWs sca®olds with a deposition –precipitation urea (DPU) method. The TEM and XRD measurements indicated that well-crys-tallized face-centered cubic (fcc) AuNPs were homogeneously dispersed on TNWs, and AuNPswith average sizes of 2.7 nm and 4 nm were obtained, respectively for the theoretical gold loading5 wt.% and 8 wt.%. Inspiringly, the 8%-AuNPs/TNWs catalyst could reduce 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) within 210 s, and exhibited better catalytic reduction performancethan that of 5%-AuNPs/TNWs.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
