Scholarlink

<p>The use of rhodium nanoparticles (RhNPs) in biomedical, environmental and industrial applications is highly significant due to their unique catalytic, physical and chemical properties. Further, NPs encapsulated within macrocyclic structures with inherent hollow cavities are able to boost their catalytic activity. Here we are reporting for the first time, a versatile, non-toxic, third-generation supramolecule, calixarene, stabilised RhNPs. The novel sulphonic-acid functionalized oxacalix[4]arene derivative satbilized RhNPs (DSOC@RhNPs) were synthesised by a simple one-pot NaBH<sub>4</sub> reduction method at room temperature. The resulting DSOC@RhNPs were successfully characterized using UV-Vis, FT-IR, PXRD, HRTEM and EDX. The self-assembled, well-dispersed and spherical (average size of 6–8&#xa0;nm) DSOC@RhNPs exhibited heterogeneous catalytic activity in the reduction of three, cationic, anionic and neutral carcinogenic azo dyes (methylene blue, methyl orange and neutral red). DSOC@RhNPs has the potential to reduce hazardous pollutants Like 4-nitrophenol (4-NP), retaining its catalytic efficiency across four consecutive cycles. The catalytic reduction of 4-NP and the formation of 4-AP were confirmed by UV-Vis and ESI-MS data. Further, newly systhesized DSOC@RhNPs exhibited excellent sensitivity in detecting Al³⁺ ions (LOD 9 µM). Therefore, the newly developed DSOC@RhNPs represent a versatile nanomaterial with potential for synergistic catalytic and sensing applications across diverse fields.</p> Graphical Abstract <p></p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Synergistic Catalysis and Sensing: Oxacalix[4]arene-Stabilized Rhodium Nanoparticles for Dye Degradation, Nitroaromatic Reduction and Al³⁺ Ion Detection

  • 期刊论文

  • 发表日期：

    2025年9月13日

查看全文
  • Falak Panjwani,
  • Manoj Vora,
  • Banabithi Koley Seth,
  • Shibu G. PillaiCelebioglu,
  • Ashukumar Verma,
  • Vishv Desai,
  • Vinod Jain

摘要

The use of rhodium nanoparticles (RhNPs) in biomedical, environmental and industrial applications is highly significant due to their unique catalytic, physical and chemical properties. Further, NPs encapsulated within macrocyclic structures with inherent hollow cavities are able to boost their catalytic activity. Here we are reporting for the first time, a versatile, non-toxic, third-generation supramolecule, calixarene, stabilised RhNPs. The novel sulphonic-acid functionalized oxacalix[4]arene derivative satbilized RhNPs (DSOC@RhNPs) were synthesised by a simple one-pot NaBH4 reduction method at room temperature. The resulting DSOC@RhNPs were successfully characterized using UV-Vis, FT-IR, PXRD, HRTEM and EDX. The self-assembled, well-dispersed and spherical (average size of 6–8 nm) DSOC@RhNPs exhibited heterogeneous catalytic activity in the reduction of three, cationic, anionic and neutral carcinogenic azo dyes (methylene blue, methyl orange and neutral red). DSOC@RhNPs has the potential to reduce hazardous pollutants Like 4-nitrophenol (4-NP), retaining its catalytic efficiency across four consecutive cycles. The catalytic reduction of 4-NP and the formation of 4-AP were confirmed by UV-Vis and ESI-MS data. Further, newly systhesized DSOC@RhNPs exhibited excellent sensitivity in detecting Al³⁺ ions (LOD 9 µM). Therefore, the newly developed DSOC@RhNPs represent a versatile nanomaterial with potential for synergistic catalytic and sensing applications across diverse fields.

Graphical Abstract