Competitive Effects of Structural Heterogeneity and Surface Chemical States on Catalytic Efficiency of FeSiBPCu Amorphous and Nanocrystalline Alloys
Source abstract
Abstract
The competitive effects of structural heterogeneity and surface chemical states on the catalytic efficiency of FeSiBPCu amorphous, single nanocrystalline, and multiple crystalline ribbons toward methylene blue (MB) degradation via Fenton-like reactions are studied. The FeSiBPCu amorphous and single nanocrystalline ribbons show higher catalytic efficiency than their multiple crystalline counterpart and FeSiB amorphous alloy. There are more Fe0 and galvanic cell structures on the surfaces of FeSiBPCu single nanocrystalline ribbons than those of FeSiBPCu amorphous ribbons. However, the amorphous and single nanocrystalline ribbons show similar catalytic performance due to the passive iron phosphate and silica layer formed on the surfaces of FeSiBPCu single nanocrystalline ribbons during annealing. Formation of Fe3P0.37B0.63 and enrichment of iron phosphates and silica on the surface reduces the catalytic efficiency of FeSiBPCu multiple crystalline ribbons. The dye degrading process finishes within 30 min using FeSiBPCu amorphous ribbons even after 20 recycles. This work clarifies the competitive effects of structural heterogeneity and change of surface chemical states induced by annealing on the catalytic efficiency of FeSiBPCu amorphous ribbons.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Environmental remediation with nanomaterials · Nanomaterials for catalytic reactions · Iron oxide chemistry and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Materials Science and Engineering, Jiangsu Key Laboratory for Advanced Metallic Materials, Southeast University, Nanjing 211189, China
Institute of Massive Amorphous Metal Science, China University of Mining and Technology, Xuzhou 221116, China
Funding
Ministry of Education of the People's Republic of China · Ministry of Science and Technology of the People's Republic of China · National Natural Science Foundation of China
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