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Lewis acid-oxygen vacancy interfacial synergistic catalysis over SO4^2-/Ce0.84Zr0.16O2-WO3-ZrO2 for N,N-diethylation of aniline with ethanol

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Journal of Rare Earths 2020年第11期38卷 1190-1200,I0002页

作者： Yacheng Liu Qifan Mao Xiaoyan Cao Xin Huang Kaijun Wang can Wang Shuo Li Zhenggui gu School of Chemistry and Materials Science Nanjing Normal UniversityNanjing 210023China Jiangsu Province Key Laboratory of Materials Cycling and Pollution Control Nanjing 210023China

Herein,a new mechanism involving Lewis acid-oxygen vacancy interfacial synergistic catalysis fo r aniline N,N-diethylation with ethanol was proposed,and the SO4^2-/Ce0.84Zr0.16O2-WO3-ZrO2 catalyst(SCWZ)with both Lewis acid sites and oxygen vacancies was synthesized by the hydrothermal method,which shows better catalytic activity than the reported solid acidic ***,the SO4^2-/ZrO2(SZ)and SO4^2-/WO3-ZrO2(SWZ)catalysts were also prepared and compared with SCWZ to investigate the synergistic effect of each *** SO4^2-and WO3 mainly generate Lewis acid by bonding with ZrO2,which is beneficial for the fracture of the N-H bond in *** Ce0.84Zr0.16O2 solid solution mainly plays a vital role in generating the oxygen vacancies as the interface active species,which can participate in stripping-OH from ethanol,then the carbocation will also be released,which only needs1.3805 kcal/mol energy,calculated by density functional theory(DFT),to be *** comparison,the traditional reaction mechanism needs the Br■nsted acidic sites to promote the protonation of ethanol,then dehydration and subsequent formation of carbocation followed,and 108.6846 kcal/mol energy needs to be input,which is far higher than that of the new *** apparent activation energy(Ea)over SCWZ was measured by experiment to be 34.09 kJ/mol,which is much lower than that of SWZ(47.10 kJ/mol)and SZ(54.37 kJ/mol),illustrating comparatively preferable kinetics for SCWZ than that of SWZ and ***,the conversion of aniline and selectivity to N,N-diethylaniline over SCWZ reach almost 100%and 73%,respectively,The SCWZ can be renewed for 4 times without rapid deactivation,and the longevity of SCWZ is longer than that of SWZ and SZ,as the loaded SO4^2-and tetragonal ZrO2 are stabilized by Ce0.84Zr0.16O2 and WO3,respectively.

关键词： N,N-diethylation Lewis acid Bronsted acid Oxygen vacancy Activation energy Density functional theory

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Partial melting of ultrahigh-pressure metamorphic rocks at convergent continental margins: Evidences, melt compositions and physical effects

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Geoscience Frontiers 2018年第4期9卷 1229-1242页

作者： Liang-Peng Deng Yi-can Liu Xiao-Feng gu Chiara Groppo Franco Rolfo CAS Key Laboratory of Crust-Mantle Materials and Environments School of Earth and Space SciencesUniversity of Science and Technology of China Department of Earth Sciences University of Torino C.N.R.- I.G.G. Section of Torino

Ultrahigh-pressure（UHP） metamorphic rocks are distinctive products of crustal deep subduction,and are mainly exposed in continental subduction-collision terranes. UHP slices of continental crust are usually involved in multistage exhumation and partial melting, which has obvious influence on the rheological features of the rocks, and thus significantly affect the dynamic behavior of subducted slices. Moreover,partial melting of UHP rocks have significant influence on element mobility and related isotope behavior within continental subduction zones, which is in turn crucial to chemical differentiation of the continental crust and to crust-mantle *** melting can occur before, during or after the peak metamorphism of UHP rocks. Post-peak decompression melting has been better constrained by remelting experiments; however, because of multiple stages of decompression, retrogression and deformation, evidence of former melts in UHP rocks is often erased. Field evidence is among the most reliable criteria to infer partial melting. Glass and nanogranitoid inclusions are generally considered conclusive petrographic evidence. The residual assemblages after melt extraction are also significant to indicate partial melting in some cases. Besides field and petrographic evidence, bulk-rock and zircon trace-element geochemical features are also effective tools for recognizing partial melting of UHP rocks. Phase equilibrium modeling is an important petrological tool that is becoming more and more popular in P-T estimation of the evolution of metamorphic rocks; by taking into account the activity model of silicate melt, it can predict when partial melting occurred if the P-T path of a given rock is *** silicate melt is commonly leucogranitic and peraluminous in composition with high SiO_2,low MgO, FeO, MnO, TiO_2 and CaO, and variable K_2 O and Na_2 O contents. Mineralogy of nanogranites found in UHP rocks mainly consists of plagioclase ＋ K-feldspar ＋ quartz, p

关键词： Partial melting Continental subduction-collision Ultrahigh-pressure metamorphism Leucosome Phase equilibrium modeling

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Mineralogical characteristics and photocatalytic properties of natural sphalerite from China

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Journal of Environmental Sciences 2020年第3期32卷 156-166页

作者： can Shen Xiangping gu Bin Yang Dexian Zhang Zhilin Wang Zhengxiang Shu Jeffrey Dick Anhuai Lu Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring Ministry of Education Central South UniversityChangsha 410083China School of Geoscience and Info-physics Central South UniversityChangsha 410083China

Different natural sphalerites have a range of photocatalytic properties that can potentially be exploited for environmental remediation *** develop value in the exploitation of sphalerite,samples were collected from 19 ore deposits in China and characterized for their mineralogical and photocatalytic properties.X-ray diffraction(XRD) and electron probe micro analysis(EPMA) measurements indicated that all the natural sphalerites from various localities crystallized in cubic phases with various chemical *** substitution of Fe for Zn ranged from 0.235% to 14.826% by weight,Mn from 0.004% to4.868%,Cu from 0.009% to 5.529% and Cd from 0.133% to 1.576%.As Fe became more abundant,the color of natural sphalerite darkened,becoming almost black;and higher Fe content was associated with stronger visible light *** spectra showed emission mainly related to S-vacancies and progressively decreasing fluorescence intensity with increasing Fe *** of the photocatalytic degradation of methyl orange indicated that the sample with the highest Cd content but moderate Fe content had the highest photocatalytic ***,the degradation of Methyl Orange(30 mg/L)attained 82.11% efficiency under visible light irradiation for 4 hr of natural sphalerite with4.262% Fe and 1.576% ***,the Fe content in sphalerite was found to contribute to the visible light absorption ability and the recombination rate of photo-generated electrons and holes,while substitution by Cd was observed to have a greater effect on the photocatalytic *** findings provide a scientific basis for the profitable utilization of base metal resources like sphalerite.

关键词： Natural sphalerite Mineralogical properties Band gap Photodegradation of Methyl Orange

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RECURRENT HEPATIC ENCEPHALOPATHY IN A CIRRHOTIC PATIENT WITH LARGE GASTRORENAL SHUNT: ONE CASE REPORT

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Medical Bulletin of Shanghai Jiaotong University 2011年第2期23卷 54-57页

作者：汪余勤汪保灿顾胜利范建高 Department of Gastroenterology Xinhua Hospital Shanghai Jiaotong University School of Medicine Department of Ultrasonography Xinhua Hospital Shanghai Jiaotong University School of Medicine

We presented a case of chronic recurrent hepatic encephalopathy occurring in a liver cirrhosis patient (Child Pugh A) with a large gastrorenal shunt and a review of the literature focusing on diagnosis and management. Computed tomography (CT) demonstrated an atrophic liver, splenomegaly, varices at the gastric fundic and the splenic hilum, and a highly tortuous shunt vessel between the gastric fundic varices and the left renal vein. Ultrasonography revealed the portal vein diameter was 0.8 cm; and portal vein blood flow velocity was 17.6 mL/s. In practice, the clinician need to ascertain the existence of the large portosystemic shunt when the patients presenting hepatic encephalopathy recurrent or refractory to standard medical treatments.

关键词： hepatic encephalopathy cirrhosis portosystemic shuntthree dimensional vessel reconstruction

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细化护士分工在心脏外科心跳骤停患者抢救配合中的应用

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中华现代护理杂志 2012年第30期18卷 3637-3639页

作者：秦春香丁四清谢建飞魏容容肖鹏谷灿中南大学湘雅医学院护理学院 410013长沙中南大学湘雅三医院心胸外科长沙400013

目的细化护士分工，规范心脏外科心跳骤停患者抢救时护士的配合。方法自2009年8月，自行设计心跳骤停抢救配合情况调查表进行跟踪调查。2010年8月开始总结分析并细化护士分工。对细化护士分工前后抢救成功率、护理记录书写时间、整理时... 详细信息

目的细化护士分工，规范心脏外科心跳骤停患者抢救时护士的配合。方法自2009年8月，自行设计心跳骤停抢救配合情况调查表进行跟踪调查。2010年8月开始总结分析并细化护士分工。对细化护士分工前后抢救成功率、护理记录书写时间、整理时间进行调查，调查结果使用SPSS10．0软件进行统计学分析。结果2009年8月至2010年8月与2010年8月至2011年8月比较，抢救成功率提高16．7％。抢救记录书写时间由（64．2±5．3）min缩短到（17．8±2．8）min，整理时间由原来的（104．5±6．1）min缩短到（35．1±4．2）min，差异均有统计学意义（t值分别为32．8，39．2；P〈0．01）。结论根据专科特色，定期总结抢救经验，细化护士分工，有利于规范急救护理管理，提高抢救成功率，同时确保抢救记录客观真实，提高护士工作效率。

关键词：胸外科学组织和管理护士分工抢救配合

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Temperature-induced hydrophobicity transition of MXene membrane for directly preparing W/O emulsions

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Chinese Journal of Chemical Engineering 2023年第3期55卷 59-62页

作者： Yingxiang Ni can Yuan Shilong Li Jian Lu Lei Yan Wei gu Weihong Xing Wenheng Jing State Key Laboratory of Materials-Oriented Chemical Engineering Nanjing Tech UniversityNanjing 210009China

Although hydrophilic membranes are desired for reducing resistance to water permeation, hydrophilic surfaces are not used in the water-in-oil(W/O) membrane emulsification process because water spreads on the hydrophilic surface without forming droplets. Here, we report that a hydrophilic ceramic membrane can form a hydrophobic interface in diesel at a higher temperature;interestingly, the experiments show that the contact angle increases when the temperature rises. The hydrophilic membrane surface evolves into a hydrophobic interface, particularly near the boiling point of water, resulting in a water contact angle of 147.5° ± 1.2°. This work established a method for preparing W/O monodispersed emulsions by direct emulsification of hydrophilic ceramic membranes at a temperature close to the boiling point of ***, it made high flux of membrane emulsification of monodispersed W/O emulsions possible,which satisfied the industrial requirements of fluidized catalytic cracking in the petrochemical industry.

关键词： Membrane emulsification Ceramic membrane Hydrophobic interface W/O emulsions

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硒及硒纳米颗粒生物学机制与口腔常见疾病的关系

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中国组织工程研究 2025年第22期29卷 4813-4822页

作者：彭璐瑶顾瑜遵义医科大学珠海校区广东省珠海市519041 贵州省高等学校口腔疾病研究特色重点实验室贵州省遵义市563000

背景:硒作为人体所需的微量非金属元素具有抗炎、抗氧化、抗菌、免疫调节和抗肿瘤等生物活性,已经在生物医学领域得到广泛应用。目的:总结硒及其纳米颗粒在抗炎、抗氧化、抗菌、免疫调节和抗肿瘤方面的功能和作用机制,以及在口腔医学领... 详细信息

背景:硒作为人体所需的微量非金属元素具有抗炎、抗氧化、抗菌、免疫调节和抗肿瘤等生物活性,已经在生物医学领域得到广泛应用。目的:总结硒及其纳米颗粒在抗炎、抗氧化、抗菌、免疫调节和抗肿瘤方面的功能和作用机制,以及在口腔医学领域的研究进展。方法:以“selenium,selenium nanoparticles,oral neoplasms,caries,dental pupal disease,periapical disease,dental implant”为英文检索词,以“硒,硒纳米颗粒,口腔癌,龋病,牙髓病,根尖周病,口腔种植”为中文检索词,分别在PubMed、中国知网、万方数据库进行文献检索,检索文献时限为2000年1月至2024年2月。经过对文献的深入分析和仔细阅读,最后选择74篇文献进行全面综述。结果与结论:(1)硒的生物学特性主要是通过合成硒蛋白,以抗氧化机制为核心,调节各种细胞因子和介导与之相关的信号通路,进而产生抗菌、免疫调节、抗肿瘤等作用;(2)硒除了在口腔癌、龋病、牙髓根尖周病等方面可用于早期诊断、治疗和预后判断外,更多的是可作为新型口腔材料在口腔领域应用,例如:用于开发新型牙科封闭剂或根管系统消毒剂,又或在优化口腔种植材料性能等方面有所应用;(3)生物安全性是影响硒在生物医药领域应用的最重要因素之一,选择合适的剂量和形式才能使其发挥出良好作用。硒在口腔材料学方面展现出了巨大的应用潜力和广阔的发展空间。

关键词：硒硒纳米颗粒口腔癌龋病牙髓根尖周病口腔种植

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Unexplained septic shock after colonoscopy with polyethylene glycol preparation in a young adult:A case report

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World Journal of Clinical Cases 2022年第31期10卷 11652-11657页

作者： Jiao-Jiao Song Chen-Jiao Wu Yuan-Yuan Dong can Ma Qing gu Department of Gastrointestinal Endoscopy The First Affiliated HospitalZhejiang University School of MedicineHangzhou 310003Zhejiang ProvinceChina

BACKGROUND Colonoscopy has become a routine physical examination as people’s health awareness has *** glycol(PEG)is greatly used in bowel preparation before colonoscopy due to its price and safety *** shock after colonoscopy with PEG preparation is extremely rare,with only very few cases in critically ill ***,we describe a case of septic shock in a healthy young adult immediately following colonoscopy with PEG *** SUMMARY A 33-year-old young adult presented to our hospital for colonoscopy with PEG bowel preparation due to recurrent diarrhea for 7 *** male's previous physical examination showed no abnormal indicators,and colonoscopy results were normal;however,he exhibited septic shock and markedly elevated white blood cell,C-reactive protein,and procalcitonin levels on the second day after *** resuscitation and intensive care with appropriate antibiotics improved his ***,the blood and stool cultures did not detect the pathogen CONCLUSION Septic shock after colonoscopy is rare,especially in young *** authors considered the possibility of opportunistic infections after PEG bowel preparation,and clinicians should monitor patients for the possibility of such complications.

关键词： Septic shock Polyethylene glycol Colonoscopy Case report

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Breaking new ground in photocatalysis: lutetium texaphyrin as a trigger for pyroptosis through biomolecular photoredox reactions

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Science China Chemistry 2025年第01期 1-2页

作者： Qihang Ding Mengrong He Meijia gu Department of Chemistry Korea University Department of Ultrasound Medicine Union Hospital Tongji Medical College Huazhong University of Science and Technology Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (MOE) School of Pharmaceutical Sciences Wuhan University

Malignant neoplasms consistently pose a significant threat to global public health [1,2]. In recent years, immunotherapy has demonstrated remarkable clinical success; however, its efficacy is limited by the scarcity of immune cell infiltration within tumor microenvironments. Cell pyroptosis, a gasdermin-mediated process characterized by cellular swelling,rupture, and the release of intracellular contents such as IL-1β, IL-18, ATP, HMGB1, plays a crucial role in this context[3,4].

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文明叙事:习近平文化思想的方法论审视

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新疆师范大学学报（哲学社会科学版） 2025年第1期46卷 34-42页

作者：张明谷生秀南京大学马克思主义学院江苏南京210023

文明是中国共产党百余年推进马克思主义中国化时代化的核心线索,文明叙事是中国共产党历史叙事的重要维度,也是习近平文化思想的重要方法论。习近平文化思想的深厚文明意蕴体现在四个方面:一是从历史纵深出发把握“走自己的路”的文明基... 详细信息

文明是中国共产党百余年推进马克思主义中国化时代化的核心线索,文明叙事是中国共产党历史叙事的重要维度,也是习近平文化思想的重要方法论。习近平文化思想的深厚文明意蕴体现在四个方面:一是从历史纵深出发把握“走自己的路”的文明基因,即从中华5000多年文明的历史传承中把握中国道路的来龙去脉及其内在逻辑必然;二是以“第二个结合”为根本方法,重塑发展中华文明的使命担当,不断推动建设中华民族现代文明实现传统文明的现代新生;三是坚守文明超越理念,将新文明的建构与中国式现代化的现实实践相互关联,以中国式现代化创造人类文明新形态,打破西方以资本逻辑为核心的形而上学抽象文明观的历史困境;四是坚持文明交流互鉴,推动落实全球文明倡议,构建人类文明交往新范式。

关键词：习近平文化思想文明叙事 “走自己的路” “第二个结合” 文明交流互鉴

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