Synthesis and catalytic properties of silver nanoparticles supported on porous cellulose acetate sheets and wet-spun fibers

被引：106
|
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
来源：
CARBOHYDRATE POLYMERS | 2017年 / 157卷
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.
引用
收藏
页码：294 / 302
页数：9
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