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[1]成鸿静,杨兆华,刘　辉,等.一锅法制备聚乙烯醇载银海绵及其催化性能[J].武汉工程大学学报,2021,43(06):616-621.[doi:10.19843/j.cnki.CN42-1779/TQ.202106018]
　CHENG Hongjing,YANG Zhaohua,LIU Hui,et al.Preparation of Silver Loaded Polyvinyl Alcohol Sponge by One-Pot Method and Its Catalytic Performance[J].Journal of Wuhan Institute of Technology,2021,43(06):616-621.[doi:10.19843/j.cnki.CN42-1779/TQ.202106018]
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一锅法制备聚乙烯醇载银海绵及其催化性能(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
43
期数:
2021年06期
页码:
616-621
栏目:
材料科学与工程
出版日期:
2021-12-31

文章信息/Info

Title:
Preparation of Silver Loaded Polyvinyl Alcohol Sponge by One-Pot Method and Its Catalytic Performance
文章编号:
1674 - 2869（2021）06 - 0616 - 06
作者:
成鸿静; 杨兆华; 刘　辉; 杜飞鹏; 张云飞*
武汉工程大学材料科学与工程学院，湖北 武汉 430205
Author(s):
CHENG Hongjing; YANG Zhaohua; LIU Hui; DU Feipeng; ZHANG Yunfei*
School of Materials Science and Engineering，Wuhan Institute of Technology，Wuhan 430205，China
关键词:
一锅法; 聚乙烯醇海绵; 纳米银; 催化还原; 对硝基苯酚
Keywords:
one-pot method;  polyvinyl alcohol sponge;  silver nanoparticles;  catalytic reduction;  4-nitrophenol
分类号:
TB34
DOI:
10.19843/j.cnki.CN42-1779/TQ.202106018
文献标志码:
A
摘要:
以水为溶剂、以聚乙烯醇（PVA）为还原剂和纳米银的载体，通过一锅法制备了一种聚乙烯醇载银（PVA/Ag）海绵并将其用于催化还原对硝基苯酚（4-NP）。采用扫描电子显微镜、傅里叶变换红外光谱、拉曼光谱、X射线衍射、热重分析分别表征了PVA/Ag海绵的形貌、组成与结构，并用紫外-可见光谱分析了其催化还原4-NP的性能。结果表明：一锅法制备的PVA/Ag海绵具有三维多孔结构，有效地抑制了纳米银颗粒的团聚，使得纳米银颗粒分布均匀，在4-NP还原中具有良好的催化性能。当4-NP的浓度为0.2 mmol/L时，载银量为2.2%的PVA/Ag海绵在14 min内完成催化，催化效率达到98%以上。因此，本文制得的PVA/Ag海绵具有制备简单、催化效率高等特点，在污水处理领域具有潜在应用前景。
Abstract:
Silver loaded polyvinyl alcohol （PVA/Ag） sponges were prepared by one-pot method using water as solvent， polyvinyl alcohol as reductant and carrier material，and were used for catalytic reduction of 4-nitrophenol（4-NP）. The morphology，composition and structure of PVA/Ag sponges were characterized by scanning electron microscopy，Fourier transform infrared spectroscopy，Raman spectroscopy，X-ray diffraction and thermogravimetric analysis，respectively. Ultraviolet-visible spectroscopy was used to test the catalytic performances of PVA/Ag sponges in reduction of 4-NP. The results show that the PVA/Ag sponges have porous structures，which effectively inhibits the aggregation of silver nanoparticles and makes silver nanoparticles uniformly distribute in the sponges. The PVA/Ag sponges prepared exhibit excellent catalytic performance in the reduction of 4-NP. When the concentration of 4-NP is 0.2 mmol/L，2.2% silver loaded PVA/Ag sponges can complete the catalytic reaction within 14 min，and the catalytic efficiency is over 98%. Therefore，the PVA/Ag sponges have the advantages of simple preparation and high catalytic efficiency，which have potential application prospect in the field of wastewater treatment.

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备注/Memo

备注/Memo:
收稿日期：2021-06-29基金项目：国家自然科学基金青年项目（51803157）；湖北省荆楚卓越计划项目（鄂教高办函〔2017〕6号）作者简介：成鸿静，硕士研究生。E-mail：[email protected]*通讯作者：张云飞，博士，副教授，硕士研究生导师。E-mail：[email protected]引文格式：成鸿静，杨兆华，刘辉，等. 一锅法制备聚乙烯醇载银海绵及其催化性能［J］. 武汉工程大学学报，2021，43（6）：616-621.
更新日期/Last Update: 2021-12-27