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紫外光诱导氧化钛(110)表面氧空位迁移的成像研究

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Chinese Journal of Chemical Physics 2024年第1期37卷 29-34,I0117页

作者：赵祥云卫东金闲驰江凌马志博杨学明中国科学院大连化学物理研究所分子反应动力学国家重点实验室大连116023 中国科学院大学北京100049 盛达欧科(北京)分析仪器有限公司北京100044 苏州华杨科学仪器有限公司苏州215300 南方科技大学化学系深圳518055

本文报道了在氧化钛(110)表面上利用扫描隧道显微镜观察到的266 nm紫外激光照射下引发的氧空位迁移.由于紫外光诱导的氧空位迁移,表面上形成了氧空位对甚至氧空位三聚体.氧空位对缺陷有两种稳定的扫描隧道显微镜形态,在扫描过程中可以互... 详细信息

本文报道了在氧化钛(110)表面上利用扫描隧道显微镜观察到的266 nm紫外激光照射下引发的氧空位迁移.由于紫外光诱导的氧空位迁移,表面上形成了氧空位对甚至氧空位三聚体.氧空位对缺陷有两种稳定的扫描隧道显微镜形态,在扫描过程中可以互换.较长的光照时间(68分钟)可以形成以氧空位对为主要点缺陷的氧化钛(110)表面.本文丰富了关于紫外光照射下氧空位行为的理解,为未来涉及266 nm紫外光的金红石型氧化钛(110)还原表面的光催化研究氧空位扩散和氧空位寡聚体形成的现象提供了参考.

关键词：氧化钛扫描隧道显微镜紫外光照氧空位

鼠李糖乳杆菌对非酒精性脂肪肝病小鼠肠道菌群及血清因子的影响

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中国病原生物学杂志 2024年第11期19卷 1283-1289,1294页

作者：赵祥运梁慧洁陆诗发闫厚煜上海市第六人民医院消化内镜中心上海200233 建瓯市立医院消化科

目的评估鼠李糖乳杆菌(Lactobacillus rhamnosus GG,LGG)对高脂饮食诱导的非酒精性脂肪性肝病(NAFLD)小鼠的保护作用,特别是其对体重、血糖、肝脏病理学、血清生化指标、炎症和肠道菌群的影响。方法将C57BL/6J小鼠随机分为三组:标准饮食... 详细信息

目的评估鼠李糖乳杆菌(Lactobacillus rhamnosus GG,LGG)对高脂饮食诱导的非酒精性脂肪性肝病(NAFLD)小鼠的保护作用,特别是其对体重、血糖、肝脏病理学、血清生化指标、炎症和肠道菌群的影响。方法将C57BL/6J小鼠随机分为三组:标准饮食组(Control组)、高脂饮食组(HFD组)和高脂饮食+LGG干预组(HFD+LGG组)。在12周的实验期间,Control组和HFD组小鼠分别接受标准饮食和高脂饮食,HFD+LGG组小鼠在高脂饮食基础上每日口服LGG。通过体重测量、空腹血糖检测、血清生化分析、肝脏组织学检查、炎症标志物测定以及16S rRNA测序分析肠道菌群组成。结果HFD组小鼠体重显著增加(P<0.05),空腹血糖水平显著升高(P<0.05);HFD+LGG组体重和血糖水平较HFD组显著降低。HFD组小鼠血清ALT、AST、TC、TG和LDL-C水平显著升高(P<0.05),HDL-C水平显著降低(P<0.05);LGG干预显著改善上述指标(P<0.05)。HFD组小鼠血清TNF-α、IL-6和CRP水平显著升高(P<0.05);LGG干预显著降低这些炎症标志物(P<0.05)。16S rRNA测序结果显示,HFD组小鼠肠道Firmicutes和Proteobacteria丰度显著增加,Bacteroidetes和Actinobacteria丰度显著减少(P<0.05);LGG干预显著逆转了这些变化,恢复了肠道菌群的平衡(P<0.05)。结论鼠李糖乳杆菌通过调节肠道菌群的组成,改善脂质代谢和炎症反应,有效缓解了高脂饮食诱导的NAFLD小鼠的肝脏损伤和代谢紊乱。LGG干预显著降低了体重、血糖、血清生化指标和炎症标志物水平,并恢复肠道微生物群的平衡,表明其在NAFLD治疗中的潜在应用价值。

关键词：鼠李糖乳杆菌非酒精性脂肪性肝病高脂饮食肠道菌群 16s rRNA测序

许渊冲诗词英译的双重境界:审美再现与文化重构

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郑州轻工业大学学报（社会科学版） 2024年第2期25卷 86-94页

作者：杨嘉卉赵祥云郑州轻工业大学外国语学院河南郑州450001

许渊冲在诗词翻译实践与理论方面造诣颇深,提出了“美化之艺术,创优似竞赛”的译诗观,将诗词翻译提升到新的境界,其诗词翻译意、音、形皆美且让读者知之、好之、乐之。许渊冲诗词翻译在进行审美再现时,主要采用释意性翻译、创造性翻译... 详细信息

许渊冲在诗词翻译实践与理论方面造诣颇深,提出了“美化之艺术,创优似竞赛”的译诗观,将诗词翻译提升到新的境界,其诗词翻译意、音、形皆美且让读者知之、好之、乐之。许渊冲诗词翻译在进行审美再现时,主要采用释意性翻译、创造性翻译和等化翻译法等策略来分别再现原作意境之美、音韵之美和形式之美。对于诗词中的文化意象、典故和意蕴,许渊冲充分考虑英语读者的审美情趣和心理需求,倾向于使用选择性翻译、阐释性翻译和创造性翻译来实现诗词的文化重构,以推动中国诗词走向世界。

关键词：许渊冲诗词英译审美再现文化重构

暂时性金属内支架和急诊手术治疗梗阻性结直肠癌的疗效比较

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介入放射学杂志 2024年第4期33卷 386-389页

作者：伏桂香陈尼维孔武明朱悦琦赵祥运上海交通大学医学院附属第六人民医院消化内科上海200233

目的对比X线引导内镜下暂时性金属内支架和急诊手术治疗梗阻性结直肠癌的临床疗效。方法纳入上海市第六人民医院1998年6月至2021年6月收治的因梗阻性结直肠癌行金属内支架置入术的患者408例,另随机选取同期因结直肠癌梗阻行急诊手术的31... 详细信息

目的对比X线引导内镜下暂时性金属内支架和急诊手术治疗梗阻性结直肠癌的临床疗效。方法纳入上海市第六人民医院1998年6月至2021年6月收治的因梗阻性结直肠癌行金属内支架置入术的患者408例,另随机选取同期因结直肠癌梗阻行急诊手术的312例患者,比较两组患者的Ⅰ期吻合率、住院时间、住院费用、患者满意度、术后并发症发生率、术后2年内复发率、术后3年生存率。结果支架置入组中365例成功置入金属内支架,置入成功率89.46%,其中318例做了选择性Ⅰ期结肠癌切除及结肠吻合术,9例因支架术后感染行结肠造瘘术,另外38例患者支架永久置入作为一种姑息治疗。急诊手术组312例患者和支架置入组327例患者的住院时间分别为(22.3±3.5)d和(16.1±4.2)d,住院费用分别为(61762.46±8932.76)元和(45592.35±11231.45)元,Ⅰ期吻合率分别为67.63%和97.25%,患者满意度分别为3.34±0.65和3.52±0.84,差异均有统计学意义(均P<0.05);两组术后并发症发生率分别为10.5%(33/312)和7.03%(23/327),术后2年内复发率分别为25.96%(81/312)和23.24%(76/327),术后3年生存率分别为89.10%(278/312)和87.77%(287/327),差异均无统计学意义(P=0.113、0.425、0.598)。结论暂时性金属内支架置入可以有效地解除结直肠癌急性梗阻症状,支架置入成功率较高、并发症发生率较低,Ⅰ期手术吻合率高,缩短了住院时间,节约了医疗成本,患者满意度明显提高。

关键词：结直肠癌急性肠梗阻金属内支架置入急诊手术

A selective N,N-dithenoyl-rhodamine based fluorescent probe for Fe3+ detection in aqueous and living cells

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Journal of Environmental Sciences 2020年第4期32卷 180-188页

作者： Yi Liu Cuixia zhao xiangyun zhao Huili Liu Yibin Wang Yuguo Du Dongbin Wei State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China Key Laboratory of Marine Ecology and Environmental Science and Engineering First Institute of OceanographyMinistry of Natural Resources(China)Qingdao 266061China School of Chemistry and Chemical Engineering Yantai UniversityYantai 264005China Key Laboratory of Molecular Pharmacology and Drug Evaluation Ministry of EducationYantai UniversityYantai 264005China

A novel N,N-dithenoyl-rhodamine based fluorescent and colorimetric Fe3+probe 1 was designed and synthesized by only one step from Rhodamine B hydrazide and 2-thiophenecarbonyl *** structure of probe 1 was characterized by 1 H NMR/13C NMR spectroscopy,IR spectroscopy,and HRMS *** with significant changes in visual color and fluorescent spectrum,probe 1 displayed good sensitivity for Fe3+with an abroad pH *** detection limit(3.76μmol/L,0.2 mg/L)for Fe3+was lower than WHO recommended value(0.3 mg/L)for drinking *** two thiophene carbonyl groups as coordinating functional recognition group,probe 1 showed excellent selectivity towards Fe3+over diverse coexistent metal ions and *** sensing mechanism between dithenoyl-substituted probe 1 and Fe3+was further confirmed by 1 H NMR and IR titration experiments,binding constants study,and Job’s plot ***,probe 1 also exhibited good cell membrane permeability and could be used as an efficient Fe3+probe in living human cells.

关键词： N,N-dithenoyl-rhodamine Turn-on Fe3+determination Fluorescent probe Cell imaging

Preparation of 3D micro/nanostructured CeO2： Influence of organic/inorganic acids

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Particuology 2018年第2期16卷 17-25页

作者： Runnong Yang Lin Yu Ming Sun xiangyun zhao Gao Cheng Wenjin Ye Key Laboratory of Clean Chemistry Technology of Guangdong Regular Higher Education Institutions School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou 510006 China Waygreen Technologies Inc. Guangzhou 511441 China

CeO2 is an important porous material with a wide range of applications in the abatement of volatile organic compounds （VOCs）. In this paper, we prepared a series of novel three-dimensional （3D） micro/nanostructured CeO2 materials via a solvothermal method. Organic acid-assisted synthesis and inorganic acid post-treatment were used to adjust the Ce02 microstructures. The size of the 3D micro/nanostructures could be controlled in the range from 180nm to 1.5 μm and the surface morphology changed from rough to smooth with the use of different organic acids. The CeO2 synthesized with acetic acid featured a hierarchical porosity and showed good performance for toluene catalytic combustion： a T50 of 187 ℃ and a T90 of 195 ℃. Moreover, the crystallite size, textural properties, and surface chemical states could be tuned by inorganic acid modification. After treatment with HNO3, the modified CeO2 materials exhibited improved catalytic activity, with a T50 of-175 ℃ and a T90 of -187 ℃. We concluded that the toluene combustion activity is related to the porosity and the amount of surface active oxygen of the CeO2. Both these features can be tuned by the co-work of organic and inorganic acids.

关键词： 3D micro/nanostructure CeO2 Organic acid Inorganic acid Toluene catalytic combustion

A highly active VOx-MnOx/CeO_(2) for selective catalytic reduction of NO:The balance between redox property and surface acidity

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Journal of Rare Earths 2021年第11期39卷 1370-1381,I0003页

作者： Runnong Yang Zihan Gao Ming Sun Guangying Fu Gao Cheng Wuyuan Liu Xiaobo Yang xiangyun zhao Lin Yu Key Laboratory of Clean Chemistry Technology of Guangdong Regular Higher Education Institutions Guangzhou Key Laboratory of Clean Transportation Energy ChemistrySchool of Chemical Engineering and Light IndustryGuangdong University of TechnologyGuangzhou 510006China School of Chemistry Sun Yat-Sen UniversityGuangzhou 510275China Waygreen Technologies Inc.Guangzhou 511441China

Excellent catalysts with low-temperature activity and relatively wide temperature window for selective catalytic reduction of NO with ammonia(NH_(3)-SCR) are highly demanded in view of the practical treatment of ***,we have designed a highly active VOx-MnOx/CeO_(2) material based on the intrinsic requirement of SCR reaction for catalyst,namely redox sites and surface acid *** vanadium oxide and manganese oxide are highly dispersed over the ceria mesosphere via simple incipient wetness *** loading of manganese could introduce acid sites and enhance the redox property remarkably,while the loading of vanadium increases acid sites and weakens redox *** tentatively controlling the appropriate loading ratio of the two components,the optimal catalyst achieves a balance between redox property and surface *** work shed light on the development of new SCR catalyst with superior low temperature activity,wide work temperature window and good hydrothermal stability.

关键词： Redox property Surface acidity Highly active catalyst NH_(3)-SCR Rare earths

Lithium-assisted synergistic engineering of charge transport both in GBs and GI for Ag-substituted Cu2ZnSn(S,Se)4 solar cells

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Journal of Energy Chemistry 2020年第11期29卷 9-15页

作者： xiangyun zhao Xiaohuan Chang Dongxing Kou Wenhui Zhou Zhengji Zhou Qingwen Tian Shengjie Yuan Yafang Qi Sixin Wu The authors contributed equally to this work Key Lab for Special Functional MaterialsMinistry of EducationNational&Local Joint Engineering Research Center for High-Efficiency Display and Lighting TechnologySchool of Materials Science and EngineeringCollaborative Innovation Center of Nano Functional Materials and ApplicationsHenan UniversityKaifeng 475004HenanChina

Although silver(Ag) substitution offers several benefits in eliminating bulk defects and facilitating interface type inversion for Cu2ZnSn(S,Se)4(CZTSSe) photovoltaic(PV) technology, its further development is still hindered by the fairly low electrical conductivity due to the significant decrease of acceptors *** this work, a versatile Li–Ag co-doping strategy is demonstrated to mitigate the poor electrical conductivity arising from Ag through direct incorporating Li via postdeposition treatment(PDT) on top of the Ag-substituted CZTSSe absorber. Depth characterizations demonstrate that Li incorporation increases ptype carrier concentration, improves the carrier collection within the bulk, reduces the defects energy level as well as inverts the electric field polarity at grain boundaries(GBs) for Ag-substituted CZTSSe system. Benefiting from this lithium-assisted complex engineering of electrical performance both in grain interior(GI) and GBs, the power conversion efficiency(PCE) is finally increased from 9.21% to 10.29%. This systematic study represents an effective way to overcome the challenges encountered in Ag substitution,and these findings support a new aspect that the synergistic effects of double cation dopant will further pave the way for the development of high efficiency kesterite PV technology.

关键词： Cu2ZnSn(S,Se)4 Thin film solar cell Ag substitution Alkali doping Post-treatment

11.39%efficiency Cu_(2)ZnSn(S,Se)_(4) solar cells from scrap brass

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SusMat 2022年第2期2卷 206-211页

作者： Yining Pan Chang Yan xiangyun zhao Wangxian Chen Kaiwen Sun Qing Wu Liming Ding Fangyang Liu School of Metallurgy and Environment Central South UniversityChangshaP.R.China Information and Network Centre Central South UniversityChangshaP.R.China Center for Excellence in Nanoscience(CAS) Key Laboratory of Nanosystem and Hierarchical Fabrication(CAS)National Center for Nanoscience and TechnologyBeijingP.R.China

Kesterite Cu2ZnSn(S,Se)4(CZTSSe)is one of the most promising next-generation thin-film photovoltaic materials due to its environmental friendliness and earthabundant constitutions,excellent optoelectronic properties(high absorption coefficient>104/cm and tunable band gap 1.0–1.5 eV)and high theoretical efficiency(32%).1,2 In 2014,12.6%3 efficiency was achieved by the IBM group using the hydrazine *** on the sputtering process,12.62%4 efficiency for CZTSSe and 12.5%5 efficiency for CZTSe have been achieved in recent ***ever,the highest efficiency has stuck around 12.6%for several ***,a breakthrough with certified 13%power conversion efficiency(PCE)has been demonstrated for CZTSSe thin-film solar cells,surpassing the dust-covered efficiency record since 2014.3,6 Along with the efficiency advancement of kesterite solar cells,a cost-effective fabrication process with low carbon footprint plays an increasingly important role considering the near-future industrialisation of this kind of solar cell with low energy payback time.

关键词： CZTSSe kesterite scrap brass