...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>ACS Sustainable Chemistry & Engineering >Developing a Novel Layered Boron Nitride-Carbon Nitride Composite with High Efficiency and Selectivity To Remove Protonated Dyes from Water
【24h】

Developing a Novel Layered Boron Nitride-Carbon Nitride Composite with High Efficiency and Selectivity To Remove Protonated Dyes from Water

机译：以高效率和选择性开发一种新型层状氮化硼 - 碳氮化物复合物，以从水中除去质子化染料

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

A layered boron nitride (BN)-carbon nitride (CN) composite has been successfully synthesized by calcinating a mixture of BN nanoparticles and urea at 600 degrees C, wherein CN is formed from the thermal polymerization of urea during the calcination process. TEM analyses confirm that the BN-CN composite has a layered structure, being different from the morphologies of BN nanoparticles and CN. FTIR, XRD, and NMR results support that the layered BN-CN composite is most likely formed via the dehydration reaction between the-OH groups in the BN nanoparticles and the -NH2 groups in CN during the calcination process, which links BN nanoparticles and CN together to form the layered composite. The layered BN-CN composite can, with high efficiency, remove Neutral Red (NR) and Malachite Green (MG) from water (NR removal quantity: 1350.1 mg/g, concentration: 220 mg/L; MG removal quantity: 1040.6 mg/g, concentration: 120 mg/L), whereas the layered BN-CN composite has low efficiency to remove Methyl Orange (MO), Methylene Blue (MB), and Crystal Violet (CV) from water. The quantities of MO, MB, and CV removed are all just around 60 mg/g with a concentration of 120 mg/L. NR and MG are both protonated dyes, and their positive charges are from the bound H+. The layered BN-CN composite has high affinity for H+, which can cause the pH of the deionized water to increase to 8.89 from the initial 6.82. This may be responsible for the high removal efficiency of the layered BN-CN composite for NR and MG. Furthermore, the layered BN-CN composite can selectively remove NR (or MG) from NR-MO and NR-MB solutions (or MG-MO and MG-MB solutions).
机译：通过在600℃下煅烧BN纳米颗粒和尿素的混合物，成功地合成了层状氮化硼（BN）氮化物（CN）复合物，其中CN由尿素期间尿素的热聚合形成。 TEM分析确认BN-CN复合物具有分层结构，与BN纳米颗粒和CN的形态不同。 FTIR，XRD和NMR结果支持，层状的BN-CN复合材料很可能通过BN纳米颗粒中的-OH基团与CN中的-OH2基团之间的脱水反应形成，该煅烧过程中的煅烧工艺链接BN纳米颗粒和CN一起形成分层复合材料。分层的BN-CN复合材料可以高效，从水中除去中性红色（NR）和孔雀石绿（Mg）（NR去除量：1350.1mg / g，浓度：220mg / L; Mg除去量：1040.6 mg / G，浓度：120mg / L），而分层BN-CN复合材料具有低效率以从水中除去甲基橙（Mo），亚甲基蓝（Mb）和晶体紫（CV）。除去的Mo，Mb和Cv的量均为约60mg / g，浓度为120 mg / L. NR和MG都是质子化染料，它们的正电荷来自结合的H +。层状BN-CN复合物对H +具有高亲和力，这可能导致去离子水的pH从初始6.82增加到8.89。这可能负责用于NR和MG的层状BN-CN复合材料的高除去效率。此外，层状的BN-CN复合材料可以选择性地从NR-MO和NR-MB溶液（或Mg-Mo和Mg-MB溶液）中除去NR（或Mg）。

著录项

  • 来源
  • 作者

    Guo Yong; Wang Ruxia; Wang Peifang; Rao Lei; Wang Chao;

  • 作者单位

    Hohai Univ Coll Environm Minist Educ Key Lab Integrated Regulat &

    Resource Dev Shallow Xikang Rd 1 Nanjing 210093 Jiangsu Peoples R China;

    Hohai Univ Coll Environm Minist Educ Key Lab Integrated Regulat &

    Resource Dev Shallow Xikang Rd 1 Nanjing 210093 Jiangsu Peoples R China;

    Hohai Univ Coll Environm Minist Educ Key Lab Integrated Regulat &

    Resource Dev Shallow Xikang Rd 1 Nanjing 210093 Jiangsu Peoples R China;

    Hohai Univ Coll Mech &

    Mat Xikang Rd 1 Nanjing 210093 Jiangsu Peoples R China;

    Hohai Univ Coll Environm Minist Educ Key Lab Integrated Regulat &

    Resource Dev Shallow Xikang Rd 1 Nanjing 210093 Jiangsu Peoples R China;

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

    Boron nitride nanoparticle; Carbon nitride; Layer composite; Adsorption; Selectivity;

    机译：氮化硼纳米粒子;碳氮化物;层复合;吸附;选择性;

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