Next-generation silver-doped cobalt MOF (Ag@Co-MOF-n): Transforming sensing, environmental cleanup, and energy storage

IF 5.3 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Research Bulletin Pub Date : 2025-05-06 DOI:10.1016/j.materresbull.2025.113539

Vibhav Shukla , Astakala Anil Kumar , Nazrul Haq , Kafeel Ahmad Siddiqui

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Abstract

A cobalt-based metal-organic framework, [Co(Cei)]_n (Co-MOF), and its silver-doped derivatives (Ag@Co-MOF-n, where n = 1–3) were synthesized and systematically characterized using XPS, PXRD, SEM, elemental mapping, and FT-IR techniques. Among the derivatives, Ag@Co-MOF-2 exhibited superior photoluminescent sensing capabilities for the herbicides chlorimuron ethyl (CLOV) and glyphosate (GYP), with LOD values of 0.580 ppm and 0.067 ppm, respectively. Under visible light, the photocatalytic degradation efficiency of Ag@Co-MOF-2 for GYP reached 88.07%, significantly outperforming the pristine Co-MOF (37.38%). Furthermore, in supercapacitor applications, Ag@Co-MOF-2 demonstrated an enhanced specific capacitance of 582.0 F g⁻¹ with 74.62% retention after 10,000 cycles, compared to 294 F g⁻¹ and 69.98% retention for Co-MOF. These findings underscore the multifunctional enhancements imparted by silver doping, establishing Ag@Co-MOF-2 material as a promising material for energy storage, advanced sensing, and environmental remediation applications.

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下一代银掺杂钴MOF (Ag@Co-MOF-n)：改变传感、环境清理和能量储存

合成了一种钴基金属有机骨架[Co(Cei)]n （Co- mof）及其银掺杂衍生物（Ag@Co-MOF-n，其中n = 1-3），并利用XPS、PXRD、SEM、元素映射和FT-IR技术对其进行了系统表征。其中Ag@Co-MOF-2对除草剂氯脲乙基（CLOV）和草甘膦（GYP）表现出较强的光致发光传感能力，其LOD值分别为0.580 ppm和0.067 ppm。在可见光下，Ag@Co-MOF-2对GYP的光催化降解效率达到88.07%，明显优于原始Co-MOF（37.38%）。此外，在超级电容器的应用中，Ag@Co-MOF-2显示出582.0 F g⁻¹的比容，在10000次循环后保持74.62%，而Co-MOF的比容为294 F g⁻¹，保持69.98%。这些发现强调了银掺杂带来的多功能增强，确立了Ag@Co-MOF-2材料作为储能、高级传感和环境修复应用的有前途的材料。

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来源期刊

Materials Research Bulletin 工程技术-材料科学：综合

CiteScore

9.80

自引率

5.60%

发文量

372

审稿时长

42 days

期刊介绍： Materials Research Bulletin is an international journal reporting high-impact research on processing-structure-property relationships in functional materials and nanomaterials with interesting electronic, magnetic, optical, thermal, mechanical or catalytic properties. Papers purely on thermodynamics or theoretical calculations (e.g., density functional theory) do not fall within the scope of the journal unless they also demonstrate a clear link to physical properties. Topics covered include functional materials (e.g., dielectrics, pyroelectrics, piezoelectrics, ferroelectrics, relaxors, thermoelectrics, etc.); electrochemistry and solid-state ionics (e.g., photovoltaics, batteries, sensors, and fuel cells); nanomaterials, graphene, and nanocomposites; luminescence and photocatalysis; crystal-structure and defect-structure analysis; novel electronics; non-crystalline solids; flexible electronics; protein-material interactions; and polymeric ion-exchange membranes.