Journal
APPLIED ORGANOMETALLIC CHEMISTRY
Volume 33, Issue 5, Pages -Publisher
WILEY
DOI: 10.1002/aoc.4865
Keywords
4-nitrophenol; carboxymethylated fibers; metal-organic frameworks; Nanocatalyst; silver nanoparticles
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Funding
- High-level Foreign Experts Project [GDT20186100425]
- Specific Research Foundation of Shaanxi Education Department [17JK0085]
- Shaanxi Natural Science Foundation [2018JQ3013]
- State Key Laboratory of Pulp and Paper Engineering [201728]
- National Natural Science Foundation of China [31700510]
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In this work, we prepared high-performance and recyclable nanocatalysts that consist of small and well-dispersed silver nanoparticles (Ag NPs) immobilized onto Cu- based metal-organic framework (MOF-199 s) supported by carboxymethylated cellulose fibers (CCFs). The as-prepared green nanohybrid catalysts, namely Ag NPs@ MOF-199 s/CCFs, were characterized using SEM, TEM, XRD and FT-IR techniques. The catalytic performances showed that Ag NPs@ MOF-199 s/CCFs catalysts exhibited a very high catalytic efficiency towards the reduction of 4-nitrophenol to 4-aminophenol. The enhanced catalytic performances are attributed to the improved dispersity, small particles of Ag NPs stabilized by the MOF-199 s, and the porous catalyst structures. The introduction of cellulose fiber further facilitates the reuse and sustainability of the nanohybrid catalysts, showing a stable and high reusability (more than 91% of catalytic activity) even after five runs.
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