共 38 条
Synthesis and catalytic properties of silver nanoparticles supported on porous cellulose acetate sheets and wet-spun fibers
被引:110
作者:
Kamal, Tahseen
[1
,2
]
Ahmad, Ikram
[1
,2
]
Khan, Sher Bahadar
[1
,2
]
Asiri, Abdullah M.
[1
,2
]
机构:
[1] King Abdulaziz Univ, Fac Sci, Dept Chem, POB 80203, Jeddah 21589, Saudi Arabia
[2] King Abdulaziz Univ, CEAMR, POB 80203, Jeddah 21589, Saudi Arabia
关键词:
Cellulose acetate fiber;
Silver nanoparticles;
Wet spinning;
Catalysis;
Environmental pollution;
4-NITROPHENOL REDUCTION;
METAL NANOPARTICLES;
EFFICIENT CATALYST;
FACILE SYNTHESIS;
HOLLOW FIBERS;
COATING LAYER;
ORGANIC-DYES;
ADSORPTION;
NANOFIBERS;
MEMBRANES;
D O I:
10.1016/j.carbpol.2016.09.078
中图分类号:
O69 [应用化学];
学科分类号:
081704 ;
摘要:
Cellulose acetate fibers (CA(fiber)) and sheets (CA(sheet)) were prepared by wet-spinning, and doctor blade methods, respectively. For CA(fiber), the CA-acetone solution was pushed through narrow orifice of the medical syringe into a coagulating bath containing water. The same polymer solution was used for the fabrication of CA(sheet). The prepared CA(fiber) and CA(sheet) were dipped in a 0.1 M aqueous AgNO3 solution followed by treatment with 0.1 M NaBH4 aqueous solution to synthesize the Ag nanoparticles over stated substrates. The virgin CA(fiber) and CA(sheet) as well as Ag nanoparticles containing samples (Ag/CA(fiber) and Ag/CA(sheet)) were characterized by FE-SEM, XRD, FTIR, and TGA. These materials were tested as catalysts in hydrogenation of the 2,6-dinitrophenol (2,6-DNP) by NaBH4. The Ag/cA(fiber) played better catalytic role in the hydrogenation of 2,6-DNP as compared to the Ag/CA(sheet). Moreover, the catalyst amount effect on the reaction rate constant, ease of separation and reusability of the prepared materials were discussed. (C) 2016 Elsevier Ltd. All rights reserved.
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页码:294 / 302
页数:9
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