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 : Vicente Oviedo (검색결과 2 건)
- 무료
- 기관 내 무료
- 유료
-
Enhancement of NOx photo-oxidation by Fe-doped TiO2 nanoparticles
Adriana Martinez-Oviedo,Schindra Kumar Ray,Gobinda Gyawali,Vicente Rodriguez-Gonzalez,Soo Wohn Lee 한양대학교 세라믹연구소 2019 Journal of Ceramic Processing Research Vol.20 No.3
Microwave hydrothermal-assisted sol-gel method was employed to synthesize the Fe doped TiO2 photocatalyst. Themorphological analysis suggests anatase phase nanoparticles of ~20 nm with an SBET area of 283.99 m2/g. The doping of Feions in TiO2 created oxygen vacancies and Ti3+ species as revealed through the XPS analysis. The reduction of the band gap(3.1 to 2.8 eV) is occurred by doping effect. The as-prepared photocatalyst was applied for removal of NOx under solar lightirradiation. The doping of Fe in TiO2 facilitates 75 % of NOx oxidation efficiency which is more than two-fold enhancementthan the TiO2 photocatalyst. The possible reason of enhancement is associated with high surface area, oxygen vacancy, andreduction of the band gap. Also, the low production of toxic intermediates, NO2 gas, is further confirmed by Combustion IonChromatography. The mechanism related NOx oxidation by the doped photocatalyst is explained in this study.
-
The Inter-generic Fungicidal Activity of Xanthophyllomyces dendrorhous
Marcelo Baeza,Oriana Flores,Mario Carrasco,Juan Manuel Rozas,Vicente Oviedo,Salvador Barahona,Víctor Cifuentes 한국미생물학회 2010 The journal of microbiology Vol.48 No.6
In this study, the existence of intra-specific and inter-generic fungicidal activity in Xanthophyllomyces dendrorhous and Phaffia rhodozyma strains isolated from different regions of the earth was examined. Assays were performed under several culture conditions, showing that all the analyzed X. dendrorhous and P. rhodozyma strains have killing activity against Kloeckera apiculata, Rhodotorula sloffiae, and R. minuta. This activity was greater in rich media at a pH from 4.6 to 5.0. Extracellular protein extracts with fungicidal activity were obtained from cultures of all strains, and their characterization suggested that a protein of ∼33kDa is the antifungal factor. According to peptide mass fingerprinting and an analysis of the results with the MASCOT search engine, this protein was identified as an aspartic protease. Additionally, extrachromosomal double-stranded DNA elements (dsDNAs) were observed in all X. dendrorhous and P. rhodozyma strains. Although there is a high variability, two dsDNAs of 5.4 and 6.8 kb are present in all strains.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
