Results 11 to 20 of about 1,233,592 (138)
Gongye shui chuli, 2023 高级氧化法因其催化降解环境污染物的能力强，且简单快速而备受瞩目。然而该方法虽然催化效率高、适用性强，但仍有很多局限之处亟待解决，如运行成本高、后续处理较复杂等。近年来金属有机框架材料（MOFs）结合高级氧化降解环境污染物的研究增多，可以解决高级氧化法的一些弊病。简要概述了MOFs的分类和合成策略，着重介绍了高级氧化降解污染物的原理以及MOFs催化高级氧化反应的作用原理。系统总结了MOFs结合高级氧化反应在处理环境污染物中的应用，提出了不同种类的MOFs及其复合物可以通过提升分散性、增加不饱和配位数 ...
花雨薇 +5 more
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Dimensional Assembly Engineering of Ce‐MOF Interfaces for Selective Recognition of Phytic Acid
Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Selective molecular recognition is central to chemical sensing yet discriminating structurally similar molecules at complex interfaces remains challenging. Traditional strategies based on tuning size, charge, or binding‐site chemistry often suffer from limited flexibility.
Qiang Miao +7 more
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Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Recovering palladium (Pd) from low‐concentration metallurgical wastewater still poses significant challenges. In this study, triaminoguanidine hydrochloride was used as the key functional site, and three guanidine‐functionalized covalent organic frameworks (GCOFs) were successfully constructed by adjusting the substituents (–H, –OH, and –OCH3)
Jiaxing Xiong +9 more
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Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT NASICON‐type Na4VMn(PO4)3 (NVMP) is a promising high‐capacity cathode for sodium‐ion batteries, yet its practical deployment is hindered by Mn3+‐driven lattice distortion, persistent oxygen vacancy defects, and sluggish Na+ transport, collectively resulting in accelerated performance degradation.
Deyi Zhang +10 more
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可见光驱动g-C3N4/NH2-MIL-101（Fe）活化PDS降解RhB
Gongye shui chuli, 2022 金属有机框架化合物（MOFs）具有孔隙率高、比表面积大和化学性质稳定等优点，作为催化材料具有良好的发展前景。通过溶剂热法成功合成了g-C3N4/NH2-MIL-101（Fe）复合光催化剂。采用X-射线衍射仪（XRD）、扫描电子显微镜（SEM）及X射线光电子能谱（XPS）对催化剂的结构和表面形貌进行分析，并研究其在可见光（Vis）照射下活化过二硫酸盐（PDS）降解水中罗丹明B（RhB）的效果及活化机制。结果显示：g-C3N4/NH2-MIL-101（Fe）晶体结构完整、表面粗糙，并呈现出规则的正八面体结构；
周书葵 +5 more
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Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Piezocatalytic technology utilizes mechanical strain or stress‐induced piezoelectric phenomena to produce robust internal electric fields, markedly improving the separation efficiency of e−‐h+ pairs. This method has emerged as a focal point in catalysis by removing reliance on conventional light or electrical energy via its mechanical‐to ...
Yue Zhou +5 more
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Gongye shui chuli, 2019 以2-甲基咪唑、醋酸锌与硝酸铈为原料，在常温下制备了系列掺入Ce的ZIF-8金属有机框架材料，然后通过高温焙烧制得表面有缺陷的Ce-ZnO微纳米材料。利用XRD、TG、SEM等对制备的Ce-ZnO进行了表征，并以高压汞灯为光源，以有机染料罗丹明B为目标污染物，考察了Ce-ZnO的光催化活性。结果表明，相比于ZIF-8高温热解制得的ZnO，Ce-ZnO具有更好的光催化活性和稳定性，当Ce掺杂量为1.0%时，其性能最佳。
吴梦瑶, 吴佳琳, 王卉, 吴圣姬
doaj
Growing Demand and Uneven Supply: Eight Years of Nature Education in China 需求增长与供给不均:中国自然教育八年发展回顾
Integrative Conservation, Volume 5, Issue 1, Page 46-58, March 2026.ABSTRACT This study examines the role of nature education in advancing conservation and sustainability in China between 2014 and 2023. Drawing on national survey reports and historical–comparative methods, it analyses the dynamics of public demand, institutional supply, and practitioner capacity.
Qi Yunxi, Lyu Xiang, Huang Yu
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Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Proton exchange membrane fuel cells (PEMFCs) require advanced bipolar plate coatings to enhance efficiency, durability, and commercialization potential. This review presents a systematic framework for evaluating and designing bipolar plate coatings, integrating material selection, performance metrics, deposition techniques, and future ...
Shijie Li +12 more
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Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT The sluggish kinetics of the oxygen reduction reaction (ORR) necessitate developing oxygen electrodes with enhanced electrocatalytic activity for practical zinc–air battery applications. In this study, an iron‐doped copper sulfide electrocatalyst (CuFeNS‐PNC) anchored on metal–organic framework‐derived carbon substrates was designed, featuring
Taichong Chitboonyakasem +4 more
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