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Preparation and Photoelectrocatalytic Performance Study of Au-RGO/TiO2 NTs Photoelectrode
Zuo Jin Long,ShaoDong Yang,YiWen Li,Chong Tan,Zhi Xia,SiYing Yuan,ShiYou Yu,JunSheng Li 한국고분자학회 2022 Macromolecular Research Vol.30 No.11
In our research, The Au-reduced graphene oxide (RGO)/TiO2 nanotubes (NTs) photoelectrode was prepared by electrodeposition, and was characterized and analyzed by scanning electron microscope, X-ray energy scattering spectroscopy, X-ray diffraction, photoluminescence spectroscopy, and photoelectrochemical methods. The results show that the best preparation conditions is setting deposition voltage as 0.2 V and deposition time as 30 s. At the same time, the nano-gold is well supported on RGO/TiO2 NTs without changing the original nanotube array structure. After a 35 W mercury lamp and a 15 V bias are applied, the photoelectric degradation efficiency of methylene blue is 72%, slightly higher thanthose of the other two electrodes. which show demonstrate that the photocatalytic activity of Au-RGO/TiO2 NTs photoelectrodes under visible light is improved effectively.
Alariqi Muna,Wei Hao,Cheng Junqi,Sun Yiwen,Zhu Hanyue,Wen Tianwang,Li Yapei,Wu Chenglin,Jin Shuangxia,Cao Jinglin 한국식물생명공학회 2022 Plant biotechnology reports Vol.16 No.6
Tobacco bacterial wilt caused by Ralstonia solanacearum invades tobacco plants during the whole growth period afecting yield and quality. However, the transcriptome profling of tobacco plant in response to bacterial wilt has not been well studied. In this study, we identifed the transcriptional profles of bacterial wilt-resistant (ac Yanyan97) and -susceptible (ac Honghuadajinyuan) tobacco cultivars infected with R. solanacearum at six time points by RNA sequencing. Gene expression analysis showed that the resistant cultivar manifested a faster change in the expression of defense-related genes than the susceptible cultivar during R. solanacearum infection, by which more diferentially expressed genes (DEGs) were up-regulated rather than down-regulated at all time points. Functional analysis indicated that DEGs were involved in plant hormones, glutathione and secondary metabolic pathways associated with tobacco resistance to bacterial wilt induced by R. solanacearum. Through subsequent Short Time-series Expression Miner (STEM) and weighted correlation network (WGCNA) analyses, the phenylpropanoid metabolic pathway was identifed as a key pathway for tobacco defense against R. solanacearum infestation. In summary, our results provide transcriptomic profles of tobacco response to R. solanacearum infestation