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The Promotion Effect of Low-Molecular Hydroxyl Compounds on the Nano-Photoelectrocatalytic Degradation of Fulvic Acid and Mechanism

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Nano-Micro Letters 2016年第4期8卷 320-327页

作者： Yifan Dong Jinhua li xuejin li Baoxue Zhou School of Environmental Science and Engineering Shanghai Jiao Tong University Key Laboratory for Thin Film and Microfabrication of the Ministry of Education Shanghai Jiao Tong University

A significant promotion effect of low-molecular hydroxyl compounds(LMHCs) was found in the nano-photoelectrocatalytic(NPEC) degradation of fulvic acid(FA),which is a typical kind of humic acid existing widely in natural water bodies,and its influence mechanism was proposed.A TiO_2 nanotube arrays(TNAs) material is served as the photoanode.Methanol,ethanediol,and glycerol were chosen as the representative of LMHCs in this study.The adsorption performance of organics on the surface of TNAs was investigated by using the instantaneous photocurrent value.The adsorption constants of FA,methanol,ethanediol,and glycerol were 43.44,19.32,7.00,and 1.30,respectively,which indicates that FA has the strongest adsorption property.The degradation performance of these organics and their mixture were observed in a thin-layer reactor.It shows that FA could hardly achieve exhausted mineralization alone,while LMHCs could be easily oxidized completely in the same condition.The degradation degree of FA,which is added LMHCs,improves significantly and the best promotion effect is achieved by glycerol.The promotion effect of LMHCs in the degradation of FA could be contributed to the formation of a tremendous amount of hydroxyl radicals in the NPEC process.The hydroxyl radicals could facilitate the complete degradation of both FA and its intermediate products.Among the chosen LMHCs,glycerol molecule which has three hydroxyls could generate the most hydroxyl radicals and contribute the best effective promotion.This work provides a new way to promote the NPEC degradation of FA and a direction to remove humus from polluted water.

关键词： Fulvic acid Nano-photoelectrocatalytic degradation Promotion effect Low-molecular hydroxyl compounds

The Inhibition Effect of Tert-Butyl Alcohol on the TiO_2 Nano Assays Photoelectrocatalytic Degradation of Different Organics and Its Mechanism

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Nano-Micro Letters 2016年第3期8卷 221-231页

作者： xuejin li Jinhua li Jing Bai Yifan Dong linsen li Baoxue Zhou School of Environmental Science and Engineering Shanghai Jiao Tong University Key Laboratory for Thin Film and Microfabrication of the Ministry of Education

The inhibition effect of tert-butyl alcohol(TBA), identified as the·OH radical inhibitor, on the TiO_2 nano assays(TNA) photoelectrocatalytic oxidation of different organics such as glucose and phthalate was reported. The adsorption performance of these organics on the TNA photoelectrode was investigated by using the instantaneous photocurrent value, and the degradation property was examined by using the exhausted reaction. The results showed that glucose exhibited the poor adsorption and easy degradation performance, phthalate showed the strong adsorption and harddegradation, but TBA showed the weak adsorption and was the most difficult to be degraded. The degradation of both glucose and phthalate could be inhibited evidently by TBA. But the effect on glucose was more obvious. The different inhibition effects of TBA on different organics could be attributed to the differences in the adsorption and the degradation property. For instance, phthalate of the strong adsorption property could avoid from the capture of·OH radicals by TBA in TNA photoelectrocatalytic process.

关键词： Tert-butyl alcohol Photoelectrocatalysis TiO2 nano assays Hydroxyl radical inhibitor Inhibition effect

基于微流控的血细胞和干细胞流变学行为研究进展

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力学学报 2024年第5期56卷 1271-1283页

作者：戚晓菁杜亚辉曾为臻李学进浣江实验室浙江诸暨311800 浙江大学工程力学系杭州310027

微流控芯片作为一种微全分析技术平台,具有精确流量控制、少量样本需求和可集成化等诸多优势,已被广泛应用于生物医学和环境科学等领域.利用微流控通道结构设计灵活的特点,可在实验条件下模拟生理和病理条件下的复杂血管微环境,其与超... 详细信息

微流控芯片作为一种微全分析技术平台,具有精确流量控制、少量样本需求和可集成化等诸多优势,已被广泛应用于生物医学和环境科学等领域.利用微流控通道结构设计灵活的特点,可在实验条件下模拟生理和病理条件下的复杂血管微环境,其与超分辨显微成像技术的整合使得研究人员能够实时观察和分析微观尺度下的细胞动态变化过程.因此,在用微流控芯片系统研究细胞形态和力学特性方面也取得了重要进展.文章重点介绍了微流控芯片技术及基于微流控的数值仿真模拟手段在红细胞、白细胞及干细胞变形和流变学行为中的应用及进展.首先,介绍了微流控芯片技术及相关数值仿真手段在红细胞流动变形研究中的应用;接着,总结了微流控芯片系统及相关数值模拟在白细胞边集及迁移行为的研究进展;此外,也概括了微流控芯片系统及相关数值模拟在干细胞迁移和定向分化机制方面的研究进展.最后,总结并展望了微流控芯片技术及其相关的数值模拟在血细胞及干细胞流变学研究中的挑战和未来发展趋势.

关键词：微流控芯片血细胞干细胞流变学行为数值模拟

Integration designs toward new-generation wearable energy supply-sensor systems for real-time health monitoring:A minireview

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InfoMat 2020年第6期2卷 1109-1130页

作者： Yongchao Tang xuejin li Haiming Lv Wenlong Wang Chunyi Zhi Hongfei li Songshan Lake Materials Laboratory DongguanGuangdongChina Department of Materials Science and Engineering City University of HongKongHong KongChina Beijing Key Laboratory for New Energy Materials and Devices Beijing National Laboratory for Condensed Matter PhysicsInstitute of PhysicsCASBeijingChina

Wearable sensing systems,as a spearhead of artificial intelligence,are playing increasingly important roles in many fields especially health monitoring.In order to achieve a better wearable experience,rationally integrating the two key components of sensing systems,that is,power supplies and sensors,has become a desperate requirement.However,limited by device designs and fabrication technologies,the current integrated sensing systems still face many great challenges,such as safety,miniaturization,mechanical stability,energyefficiency,sustainability,and comfortability.In this review,the key challenges and opportunities in the current development of integrated wearable sensing systems are summarized.By summarizing the typical configurations of diverse wearable power supplies,and recent advances concerning the integrated sensing systems driven by such power supplies,the representative integrated designs,and micro/nanofabrication technologies are highlighted.Lastly,some new directions and potential solutions aiming at the device-level integration designs are outlooked.

关键词： energy storage devices flexible energy supplies health monitoring integrated sensing systems wearable sensors

Epitaxial growth of hyperbranched Cu/Cu2O/CuO coreshell nanowire heterostructures for lithium-ion batteries

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Nano Research 2015年第8期8卷 2763-2776页

作者： Yuxin Zhao Ying Zhang Hu Zhao xuejin li Yanpeng li ling wen Zifeng Yan Ziyang Huo State Key Laboratory for Heavy Oil Processing PetroChina Key Laboratory of Catalysis China University of Petroleum Qingdao 266580 China SINOPEC Safety Engineering Institute No 218 Yan'an 3 Road Shinan District Qingdao 266071 China China Petroleum Pipeline Bureau 87 Guangyang Road Langfang 065000 China Queensland Micro- and Nanotechnology Centre Nathan Campus Griffith University 170 Kessels Road NATHAN QLD 4111 Australia

nano 建筑学的小心的设计和期望的活跃材料的聪明的杂交能导致更先进的性质。这里，我们设计了新奇层次分叉 Cu/Cu 2 由联合一个灵巧的热水的方法和随后的控制氧化过程的 O/CuO heteronanostructure。在分支和脊梁之间的好结构和取向附... 详细信息

nano 建筑学的小心的设计和期望的活跃材料的聪明的杂交能导致更先进的性质。这里，我们设计了新奇层次分叉 Cu/Cu 2 由联合一个灵巧的热水的方法和随后的控制氧化过程的 O/CuO heteronanostructure。在分支和脊梁之间的好结构和取向附生的关系被高分辨率的传播电子显微镜学调查。而且，分支生长的进化也在 Cu nanowire 表面的渐渐的氧化期间被观察了。试验性的结果建议经由二拍子的圆舞暴露进程要表现到改变湿度以便完成的表面氧化需要优化了核心壳的形成结构化的分叉的建筑学。最后，象在锂离子电池的阳极材料的如此的一个层次框架的功能的 proof-of-concept 被表明。分叉的核心壳 heterostructure 由几个工具改进电池性能：取向附生地成年的分支提供的(i) 为到卷变化的提高的电解质可接近性和高抵抗的一个高表面区域由 li+ 置闰 / 抽取导致了；(ii ) 有它的明确的异质接面的核心壳结构增加在 lithiation 期间便于有效费用运输的接触区域；(iii ) 铜核心象提供结构的加强一样充当一个当前的收集者。

关键词：锂离子电池异质结构外延生长核壳结构 Cu2O CuO 纳米线高分辨透射电子显微镜

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双钙钛矿抑制锂硫电池穿梭效应的实验设计

实验技术与管理 2024年第2期41卷 90-97页

作者：刘鹏云齐日新徐静李学进邢伟中国石油大学(华东)材料科学与工程学院山东青岛266580

该文设计了La_(2)CoMnO_(6)双钙钛矿氧化物应用于锂硫电池抑制穿梭效应的研究型综合实验。实验通过溶胶凝胶法制备La_(2)CoMnO_(6)双钙钛矿氧化物,并首次将其用作锂硫电池正极添加剂。通过La_(2)CoMnO_(6)对多硫化锂的静态可视化吸附实... 详细信息

该文设计了La_(2)CoMnO_(6)双钙钛矿氧化物应用于锂硫电池抑制穿梭效应的研究型综合实验。实验通过溶胶凝胶法制备La_(2)CoMnO_(6)双钙钛矿氧化物,并首次将其用作锂硫电池正极添加剂。通过La_(2)CoMnO_(6)对多硫化锂的静态可视化吸附实验、催化实验以及锂硫电池电化学性能测试,考察了该添加剂对多硫化锂穿梭效应的抑制效果及机制。该实验有助于激发学生的创新精神和科研兴趣,培养综合运用所学理论知识进行科学研究和解决实际问题的能力。

关键词：实验设计双钙钛矿氧化物锂硫电池穿梭效应

冠心病患者行PCI术后体力恢复情况及冠状动脉再狭窄的危险因素分析

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深圳中西医结合杂志 2024年第8期34卷 115-118页

作者：李学晋石翠魏法权新乡市第一人民医院河南新乡453600

目的:分析冠心病患者实施经皮冠状动脉介入治疗(PCI)术后体力恢复情况,并分析患者术后出现冠状动脉再狭窄的危险因素。方法:选择2021年1月1日至2023年6月1日在新乡市第一人民医院接受PCI术治疗的100例冠心病患者为研究对象,使用国际体... 详细信息

目的:分析冠心病患者实施经皮冠状动脉介入治疗(PCI)术后体力恢复情况,并分析患者术后出现冠状动脉再狭窄的危险因素。方法:选择2021年1月1日至2023年6月1日在新乡市第一人民医院接受PCI术治疗的100例冠心病患者为研究对象,使用国际体力活动问卷测定患者术前、术后7 d时体力情况,将患者按照体力评分区分为体力未恢复亚组和恢复亚组,收集两亚组患者的婚姻状况、自我效能等资料并进行赋值,并分析冠心病患者行PCI术后体力恢复情况危险因素。对患者进行临床随访6个月,按照患者是否出现冠状动脉再狭窄区分为再狭窄亚组和无狭窄亚组,收集两组患者的外周血糖化血红蛋白、血清尿酸、同型半胱氨酸、总胆红素、三酰甘油、总胆固醇等各类资料并进行赋值,分析患者术后出现冠状动脉再狭窄的危险因素。结果:入组100例患者术前量表评分为(51.03±6.32)分,术后7 d时量评分为(65.23±4.15)分,差异具有统计学意义(P<0.05);多因素logisitic回归分析显示,年龄、心功能分级以及自我效能得分是影响患者术后体力恢复的独立危险因素(P<0.05)。患者实施为期6个月随访,显示有39例出现冠状动脉再狭窄,再狭窄发生率为39%;多因素logisitic回归分析显示,三酰甘油以及总胆固醇水平是影响患者术后冠状动脉再狭窄的独立危险因素(P<0.05)。结论:冠心病行PCI术后患者体力较术前有明显改善,而年龄、心功能分级以及自我效能得分是影响患者术后体力恢复的独立危险因素。随访6个月患者冠状动脉再狭窄发生率较高,其中三酰甘油以及总胆固醇水平是影响患者术后冠状动脉再狭窄的独立危险因素。

关键词：冠心病经皮冠状动脉介入治疗术体力恢复冠状动脉狭窄

Realizing the Long lifespan of Molybdenum Trioxide in Aqueous Aluminum Ion Batteries Through Potential Regulation

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Renewables 2023年第4期1卷 455-464页

作者： Haodong Fan xuejin li Jie Zhou Xiaoning Wang Xiuli Gao Haoyu Hu li Zhou Tonghui Cai Yongpeng Cui Pengyun liu Qingzhong Xue Zifeng Yan Wei Xing State Key Laboratory of Heavy Oil Processing School of Materials Science and EngineeringChina University of PetroleumQingdao 266580

MoO_(3) is one of the most promising anode materials for aqueous aluminum batteries due to its high theoretical capacity and suitable aluminum insertion/de-insertion potential.However,the inferior cycling stability limits its further application,and the failure mechanism is still unclear.In this article,we provide a straightforward potential regulation technique to manage phase evolution during the charge/discharge process,which ultimately results in a markedly enhanced MoO_(3) electrode cycling stability.The failure mechanism study reveals that the excessive oxidation of the electrode during charge/discharge generates the H_(0.34)MoO_(3) phase,which has high solubility and is the primary cause of MoO_(3) deactivation.Although the dissolved Mo species will be deposited onto the electrode sheet again,the deposition is not electrochemically active and cannot contribute to the capacitance.Controlling the cutoff potential prevented the production of H_(0.34)MoO_(3),resulting in excellent cycling performance(80.1% capacity retention after 4000 cycles).The as-assembled α-MoO_(3)//MnO_(2) full battery exhibits high discharge plateaus(1.4 and 0.9 V),large specific capacity(200 mAhg^(-1) at 2 Ag^(-1)),and ultra-high coulombic efficiency(99%).The research presented here may contribute to the development of highly stable electrode materials for aqueous batteries.

关键词： aqueous aluminum ion battery molybdenum trioxide potential regulation aqueous battery anode

断奶仔猪饲粮中高剂量氧化锌减量替代的研究进展

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饲料工业 2024年第6期45卷 21-30页

作者：杨涛禚梅李学进郭守立郭茹静张雄伟周财源新疆天康饲料有限公司新疆乌鲁木齐830011

在断奶仔猪饲粮中添加高剂量或药用剂量的氧化锌(2 500~4 000 mg/kg)可减少仔猪腹泻的发生,同时也能促进断奶仔猪生长。但是高剂量的氧化锌也带来了一系列问题,如环境污染、细菌产生耐药性、改变肠道微生物组成等,且氧化锌长期高剂量使... 详细信息

在断奶仔猪饲粮中添加高剂量或药用剂量的氧化锌(2 500~4 000 mg/kg)可减少仔猪腹泻的发生,同时也能促进断奶仔猪生长。但是高剂量的氧化锌也带来了一系列问题,如环境污染、细菌产生耐药性、改变肠道微生物组成等,且氧化锌长期高剂量使用会造成仔猪毒性效应。所以,亟需一种饲粮中高剂量氧化锌减量替代策略。文章在前人研究基础上,概述了饲粮中添加高剂量氧化锌在断奶仔猪上的实际应用效果和发挥效用的可能机制以及氧化锌替代物的研究现状,以期为高剂量氧化锌减量替代提供理论依据和实践指导。

关键词：高剂量氧化锌断奶仔猪仔猪腹泻减量替代饲粮