Highly efficient noble metal free copper nickel oxysulfide nanoparticles for catalytic reduction of 4-nitrophenol, methyl blue, and rhodamine-B organic pollutants

被引:132
|
作者
Abay, Angaw Kelemework [1 ]
Chen, Xiaoyun [1 ]
Kuo, Dong-Hau [1 ]
机构
[1] Natl Taiwan Univ Sci & Technol, Dept Mat Sci & Engn, 43,Sec 4,Keelung Rd, Taipei 10607, Taiwan
关键词
P-NITROPHENOL; NITROAROMATIC COMPOUNDS; CONTROLLABLE SYNTHESIS; RECYCLABLE CATALYST; ALLOY NANOPARTICLES; FACILE SYNTHESIS; COMPOSITE; PERFORMANCE; GOLD; DYES;
D O I
10.1039/c7nj00676d
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
In this study, novel and noble metal-free copper nickel oxysulfide (CuNiOS) nanoparticles have been successfully fabricated by using a simple, cost-effective, and eco-friendly solution-based approach, with copper oxysulfide (CuOS) as a comparative. The CuOS and CuNiOS catalysts with various Ni contents were investigated by different techniques. The catalytic activities of the samples were assessed by the catalytic reduction of organic dyes such as 4-nitrophenol (4-NP), methylene blue (MB), and rhodamineB (RhB) together with NaBH4 in an aqueous solution. The results obtained from ultraviolet-visible (UV-vis) spectroscopy indicated that CuNiOS-0.6 prepared with a Cu : Ni precursor mole ratio of 1 : 0.6 had the best catalytic performance for the reduction of 4-NP, MB, and RhB in comparison to the other CuNiOS catalysts and the monometallic catalyst (CuOS) due to synergistic effects. In addition, the CuNiOS-0.6 catalyst is also better than other CuNiOS ones due to the presence of optimum amounts of Ni in the CuNiOS sample. Thus, the present approach provides a promising way to fabricate different noble metal free bimetallic oxysulfide catalysts for extensive applications in catalysis and reduction/removal of other organic pollutants.
引用
收藏
页码:5628 / 5638
页数:11
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