• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Synthesis of Ag-Ag2S Janus nanoparticles supported on an environmentally benign cellulose template and their catalytic applications
【24h】

Synthesis of Ag-Ag2S Janus nanoparticles supported on an environmentally benign cellulose template and their catalytic applications

机译：在环境良性纤维素模板及其催化应用中支持Ag-Ag2S Janus纳米颗粒的合成

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Synthesis of Ag-Ag2S Janus nanoparticles (JNP) by a one step co-precipitation technique using a NaOH-thiourea-urea aqueous solution has been reported. The NaOH in cellulose solution acted as the precipitant of Ag-Ag2S nanoparticles and environmentally benign cellulose was used as a template to promote the growth of nanoparticles. The cellulose was extracted from Bambusa tulda, a locally available bamboo species and was carried out by adopting a green approach using a combination of both chemical and biochemical treatment. The synthesized Ag-Ag2S JNP was characterized by UV-Visible spectroscopy, powder XRD, TEM, SEM-EDX and XPS analysis. The TEM study reveals that most of the Ag-Ag2S JNP were spherical in shape and fall in the size range of 10-15 nm. XRD analysis of the Ag-Ag2S JNP shows diffraction peaks for the (111), (200) and (220) planes of a face centered cubic Ag-0 crystal along with the characteristic peaks due to Ag2S, which provide evidence for the coexistence of Ag2S and Ag on the cellulose support. The method offers a facile and green pathway for the fabrication of Ag-Ag2S JNP and the synthesized Ag-Ag2S JNP were employed as a heterogeneous catalyst in a model reaction based on the reduction of p-nitrophenol to p-aminophenol. The metal nanocatalysts could be recycled and reused several times without significant loss of their catalytic activities.
机译：已经报道了使用NaOH-硫脲 - 尿素水溶液的一步共沉淀技术合成Ag-Ag2S Janus纳米颗粒（JNP）。纤维素溶液中的NaOH用作Ag-Ag2s纳米颗粒的沉淀剂，并使用环境良性纤维素作为促进纳米颗粒生长的模板。通过使用化学和生物化学处理的组合采用绿色方法，从Bambusa Tulda萃取纤维素，通过采用绿色方法进行。合成的AG-AG2S JNP的特征在于UV可见光谱，粉末XRD，TEM，SEM EDX和XPS分析。 TEM研究表明，大多数Ag-Ag2S JNP的形状为球形，尺寸范围为10-15nm。 AG-AG2S JNP的XRD分析显示了（111），（200）和（220）平面的衍射峰，与Ag2s引起的特征峰，这为共存提供了证据纤维素载体上的AG2S和AG。该方法提供了用于制备Ag-Ag2s JNP的易于和绿色途径，并且在模型反应中，合成的Ag-Ag2S JNP基于对氨基酚的还原为对氨基酚的模型反应中的非均相催化剂。金属纳米催化剂可以再循环并重复使用几次，而不会损失其催化活性。

著录项

  • 来源
    《RSC Advances》 |2016年第88期|共9页
  • 作者

    Dutta Dipanka; Hazarika Rupjyoti; Dutta Pallavi Dowarah; Goswami Tridip; Sengupta Pinaki; Dutta Dipak Kumar;

  • 作者单位

    CSIR North East Inst Sci &

    Technol Mat Sci &

    Technol Div Cellulose Pulp &

    Paper Grp Jorhat 785006 Assam India;

    CSIR North East Inst Sci &

    Technol Mat Sci &

    Technol Div Cellulose Pulp &

    Paper Grp Jorhat 785006 Assam India;

    CSIR North East Inst Sci &

    Technol Mat Sci &

    Technol Div Cellulose Pulp &

    Paper Grp Jorhat 785006 Assam India;

    CSIR North East Inst Sci &

    Technol Mat Sci &

    Technol Div Cellulose Pulp &

    Paper Grp Jorhat 785006 Assam India;

    CSIR North East Inst Sci &

    Technol Mat Sci &

    Technol Div Adv Mat Grp Jorhat 785006 Assam India;

    CSIR North East Inst Sci &

    Technol Mat Sci &

    Technol Div Adv Mat Grp Jorhat 785006 Assam India;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号