• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Plasmon induced enhanced photocatalytic activity of gold loaded hydroxyapatite nanoparticles for methylene blue degradation under visible light
【24h】

Plasmon induced enhanced photocatalytic activity of gold loaded hydroxyapatite nanoparticles for methylene blue degradation under visible light

机译：等离子体激发可见光下载金的羟基磷灰石纳米粒子对亚甲基蓝降解的增强的光催化活性

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A facile surfactant free wet-precipitation process was employed to prepare hydroxyapatite (HAp) nanoparticles. Further, a microwave-assisted hydrothermal process was used to synthesize gold-loaded HAp (Au–HAp) nanocomposites with different Au contents. The nanocomposites of mesoporous structures exhibited a high specific surface area. Incorporated gold in the nanocomposites formed Au nanoparticles at the surface of HAp nanoparticles. Apart from characterizing the nanocomposites for their morphology, crystallinity, structural phase and optical behaviors, they were tested for photocatalytic degradation methylene blue under visible-light. Incorporation of Au nanoparticles significantly improved the photocatalytic activity of HAp nanoparticles under visible light irradiation. Fourier transformed infrared (FTIR) spectroscopy analysis confirmed the chemical stability of the catalyst under strong photo-induced oxidation-reaction. The strong dye adsorption capacity of HAp and surface plasmon resonance (SPR) of Au nanoparticles in the visible wavelength range make this novel Au–HAp nanocomposite an effective visible light photocatalyst for the degradation and adsorption of organic dye from their aqueous solutions. Being HAp a nontoxic, bioactive material and gold a nontoxic noble metal, the composite has the potential for utilization as ambiental friendly photocatalyst for wastewater treatment.
机译：采用一种简便的无表面活性剂的湿法沉淀工艺制备羟基磷灰石（HAp）纳米颗粒。此外，微波辅助水热工艺被用于合成具有不同金含量的载金HAp（Au–HAp）纳米复合材料。介孔结构的纳米复合材料表现出高的比表面积。在纳米复合物中掺入金在HAp纳米颗粒的表面形成Au纳米颗粒。除了表征纳米复合材料的形态，结晶度，结构相和光学行为外，还对它们进行了可见光下光催化降解亚甲基蓝的测试。在可见光照射下，金纳米粒子的掺入显着提高了HAp纳米粒子的光催化活性。傅里叶变换红外（FTIR）光谱分析证实了催化剂在强光诱导的氧化反应下的化学稳定性。在可见光波长范围内，HAp的强大染料吸附能力和Au纳米粒子的表面等离子体共振（SPR）使这种新颖的Au-HAp纳米复合材料成为有效降解有机染料从其水溶液中降解和吸附的可见光光催化剂。作为一种无毒的生物活性材料，而金是一种无毒的贵金属，该复合材料具有用作废水处理的环境友好型光催化剂的潜力。

著录项

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