Results 1 to 10 of about 1,233,592 (138)

Construction of Electrochemically Enhanced Detection System for Cholesterol in Foods Based on Novel Fe3O4@Au/MOF(基于新型金属有机框架模拟酶的电化学检测食品胆固醇体系的构建) [PDF]

open access: yesShipin kexue jishu xuebao, 2022
A real-time electrochemical sensor for detecting cholesterol was constructed due to the mimic enzyme characteristics of the metal organic framework (MOF).
ZHANG Yue(张悦)   +5 more
doaj   +1 more source

Freestanding carbon fiber‐confined yolk‐shelled silicon‐based anode for promoted lithium storage applications

open access: yesRare Metals, Volume 42, Issue 11, Page 3718-3728, November 2023., 2023
Graphical abstract Abstract A flexible carbon fiber‐confined yolk‐shelled silicon‐based composite is reported as an anode material for lithium storage applications. Silicon nanoparticles (Si NPs) are confined by the N‐doped hollow carbon cages (Si‐NHC) and these uniform dispersed yolk‐shell‐structured Si‐NHC units were encapsulated by the carbon fibers
Dong‐Chen Jia   +8 more
wiley   +1 more source

去除水体中PPCPs的4种改性新型吸附材料研究进展

open access: yesGongye shui chuli, 2022
近年来,药品及个人护理用品(PPCPs)的环境污染问题日益严重。虽然这些污染物在水体中的浓度很低,但由于其结构复杂、可生化性差,对生态环境乃至人体健康产生危害。吸附分离是一种简单、快捷、高效去除水体中PPCPs的方法。分别综述了用于水体中PPCPs分离的4种深受学者关注极具发展潜力的吸附材料〔生物炭、石墨烯、金属有机框架(MOFs)、层状双金属氢氧化物(LDH)〕的研究进展,重点介绍了它们改性复合的方法和改性复合后对PPCPs的吸附性能,最后探讨了4种新型吸附材料的优缺点,提出了未来深入研究的方向。
王小平, 龚诚, 赖玲燕, 程俊
doaj  

MOFs材料声催化活性在工业废水处理中的应用进展

open access: yesGongye shui chuli, 2023
金属有机框架化合物(metal organic frameworks,MOFs)是一类新型的晶态多孔材料,不但具有较大的比表面积和较高的孔隙率,并且还具有独特的孔道结构和分散的活性中心,因此在催化领域被广泛应用。近年来,因处理不彻底的工业废水排放所引发的环境污染及抗生素耐药性问题越来越严峻。工业废水具有成分复杂,有机物含量高、难降解等特点,而现阶段工业废水处理主要面临技术单一、成本高、过程繁杂、效率低等困难。此外,目前的处理技术无法使工业废水达到零污染排放,因此开发新的处理手段解决上述问题十分紧迫 ...
王唯   +6 more
doaj  

International clinical practice recommendations on the definition, diagnosis, assessment, intervention, and psychosocial aspects of developmental coordination disorder – Chinese (Mandarin) translation

open access: yesDevelopmental Medicine &Child Neurology, Volume 61, Issue 3, Page E1-E35, March 2019., 2019
目的 本国际临床指南由欧洲残疾儿童学会(the European Academy of Childhood Disability,EACD)牵头制定,旨在解决发育性协调障碍(developmental coordination disorder,DCD)的定义、诊断、评估、干预以及与社会心理方面的临床应用关键问题。 方法 本指南针对五个领域的关键问题,通过文献综述和专家团队的正式讨论达成共识。为保证指南的循证基础,以“机制”、“评估”和“干预”为检索词, 对2012年更新以来提出的最新建议以及新增的“社会心理问题”和“青少年/成人”为检索词进行检索。根据牛津大学循证医学中心证据等级 (证据水平 [level of evidence, LOE]1–4) 将结果进行分类,最终转化为指南建议。并由国际 ...
Jing Hua   +6 more
wiley   +1 more source

提升电容去离子效能的电极材料功能化策略

open access: yesGongye shui chuli, 2021
电容去离子(CDI)技术因其操作简便、高效和绿色等优点备受脱盐领域研究者们关注,电极材料一直是CDI领域研究焦点。围绕电容去离子效能提升,以功能化电极材料为核心,针对活性炭、石墨烯、二硫化钼、碳纳米管及金属有机框架等近3年最为热门的材料,综述了它们及其功能化材料在构建策略、电吸附性能增强方面的重要研究进展,并着重对比了它们应用条件差异和电化学性能优劣。通过深度理解构效关系,总结出介、微孔合理立体架构、杂元素掺杂、表面修饰改性的主体修饰策略,以期进一步构建出制备方法绿色、性能优异的电容去离子用电极材料 ...
喻舰   +5 more
doaj  

共价有机框架纳米反应器中高铼酸盐的辐射催化还原研究

open access: yesFushe yanjiu yu fushe gongyi xuebao
高价金属含氧酸盐还原为低价态,是其资源化利用的重要途径。然而,诸如高铼酸盐(ReO4–)等含氧酸盐固有的低氧化还原电位,对传统还原方法构成了严峻挑战。本研究通过在烯烃连接的共价有机框架纳米反应器中负载过渡金属中心(M-COF),在γ射线的驱动下实现了ReO4–的高效辐射催化还原。得益于空间限域效应与电子结构的调控,该催化剂可通过独特的三电子(3e-)路径,以接近定量的选择性生成ReO2,还原能量效率高达42.1 mmol/MJ。机理研究表明,水辐解产生的水化电子(eaq-)参与了电子传递过程 ...
王 月   +11 more
doaj   +1 more source

金属有机框架掺杂氧化石墨烯对水中锑的吸附研究

open access: yesGongye shui chuli, 2023
以金属有机框架(MOFs)MIL-53(Fe)为基体,成功将氧化石墨烯(GO)掺杂于其中,制备了GO@MIL-53(Fe)复合材料。采用扫描电镜、比表面积分析、红外光谱分析、X射线衍射、X射线光电子能谱等对制备的材料进行表征分析,考察了其在水溶液中对Sb(Ⅴ)的吸附性能。在通过响应面实验找到吸附最适条件的基础上,探究了共存离子对其吸附的影响。结果表明,Sb(Ⅴ)的最优吸附条件:Sb(Ⅴ)初始质量浓度为23.22 mg/L,吸附时间为2.7 h,吸附剂投加量为27.22 mg,反应温度为34.63 ...
杨秀贞   +4 more
doaj  

Upcycling of Waste Polyethylene Terephthalate Plastics to Fabricate Cobalt–Nickel Metal–Organic Frameworks and Their Phosphides for Efficient Oxygen Evolution Reaction

open access: yesRare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT The urgent environmental crisis caused by polyethylene terephthalate (PET) waste necessitates efficient upcycling strategies. Herein, we establish a novel pathway to transform waste PET plastic into a high‐performance catalytic material for mediating the oxygen evolution reaction (OER). Through a one‐step hydrothermal process, waste PET serves
Xin Wang   +5 more
wiley   +1 more source

Constructing Asymmetric Cu–OV–Mn Sites on MOFs‐Derived Cu‐MnOx Microspheres With Abundant Oxygen Vacancies for Enhanced Photothermal VOC Degradation

open access: yesRare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT With the growing severity of volatile organic compounds (VOCs) pollution, metal‐organic frameworks (MOFs)‐derived materials offer a promising solution through efficient photothermal catalysis. In this paper, M‐MnOx (M = Cu, Ni, Co, Fe) catalysts derived from manganese‐based MOFs were successfully prepared by the sacrificial template method and
Yizhong Liao   +10 more
wiley   +1 more source

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