Preparation of Ag/C fiber with nanostructure through in situ thermally induced redox reaction between PVA and AgNO3 and its catalysis for 4-nitrophenol reduction
Preparation of Ag/C fiber with nanostructure through in situ thermally induced redox reaction between PVA and AgNO3 and its catalysis for 4-nitrophenol reduction
复制标题
PVA与AgNO3原位热诱导氧化还原反应制备纳米结构Ag/C纤维及其催化4-硝基苯酚还原
DOI：
10.1002/pat.4860
复制
发表时间：
2020-02-08
影响因子：
3.4
通讯作者：
Bai, Shibing
中科院分区：
文献类型：
--
作者：
Wang, Meng;Yuan, Bin;Bai, Shibing
提出了一种基于PVA/AgNO 3复合纤维原位热诱导氧化还原反应合成的新型Ag/C纤维催化剂。利用AgNO 3溶液的增塑和络合作用，实现了PVA/AgNO 3复合材料的熔融纺丝。通过PVA/AgNO 3复合纤维的原位热致氧化还原反应，结合PVA的碳化和Ag+的还原，制备了平均粒径为130 nm的纳米银固定在疏松微结构碳层上的Ag/C纤维催化剂。所制备的Ag/C纤维状催化剂具有良好的催化活性，可重复使用5次以上，可用于对硝基苯酚的还原，有望成为高效、环保的废水处理催化剂。
A novel synthesized Ag/C fibrous catalyst based on in situ thermally induced redox reaction of PVA/AgNO3 composite fibers was proposed. Utilizing the plasticization and complexation of AgNO3 solution, the melt spinning of PVA/AgNO3 composites was accomplished. Through the in situ thermally induced redox reaction on PVA/AgNO3 composite fibers combined with carbonization of PVA and reduction of Ag+, the synthesized Ag/C fibrous catalyst was prepared with nanosilver particles with average diameter of 130 nm immobilized on the loose microstructural carbon layers. The synthesized Ag/C fibrous catalyst exhibited excellent catalytic activity and reused for at least five cycles for the reduction of 4-nitrophenol, which may hold great promise in effective and eco-friendly waste water treatment.