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相关概念视频

Steel Manufacturing01:26

Steel Manufacturing

638
Steel manufacturing is a multi-stage process that begins by smelting iron ore into cast iron in a blast furnace. This initial stage involves layering iron ore with coke, a type of fuel, and crushed limestone within the furnace. The coke is ignited with a high volume of air, leading to the creation of carbon monoxide, which acts to reduce the iron ore to pure iron.
During this smelting process, limestone plays a crucial role by forming slag. Slag captures impurities within the molten iron, such...
638

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相关实验视频

Updated: Jul 27, 2025

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优化Fe Fe的参数优化

Md Rajibul Akanda1, Md Al-Amin1, Masrifa Akter Mele1

  • 1Department of Chemistry, Jagannath University, Dhaka, 1100, Bangladesh.

Heliyon
|June 9, 2023
PubMed
概括

绿色合成铁 (II,III) 氧化物纳米颗粒 (Fe3O4 NPs) 使用Tamarindus indica叶提取物提供了一个可持续的方法. 这些Fe3O4NP表现出显著的过氧化酶活性和染料去除能力,使它们适合生物医学应用.

关键词:
染料去除活动 染料去除活动在Fe3O4纳米粒子.绿色合成是一种绿色合成.过氧化酶的活性过氧化酶的活性.塔马林杜斯印卡叶 提取物 提取物

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科学领域:

  • 绿色化学 绿色化学
  • 纳米技术纳米技术
  • 材料科学 材料科学 材料科学

背景情况:

  • 纳米粒子合成通常涉及危险化学物质.
  • 生物相容和环保的合成方法有需求.
  • 植物提取物为纳米粒子合成提供了一个可持续的来源.

研究的目的:

  • 为了优化铁 (II,III) 氧化物纳米粒子 (Fe3O4 NPs) 的绿色合成条件,使用Tamarindus indica树叶提取物.
  • 为了描述合成的Fe3O4NP.
  • 评估Fe3O4NP的过氧化酶类活性和染料去除能力.

主要方法:

  • 优化合成参数,包括叶子提取物度,溶剂,缓冲剂,电解质,pH值和时间.
  • 使用紫外线可见光谱,扫描电子显微镜 (SEM) 和能量分散式X射线光谱 (EDS) 的表征.
  • 使用3,3,5,5-四甲基二 (TMB) 氧化和使用马拉绿 (MG) 进行染料去除的过氧化酶活性测定.

主要成果:

  • 在优化的条件下,Fe3O4 NP产生了大约80 ± 3nm的大小的Fe3O4 NP.
  • 紫外线可见光谱显示吸收峰值在270-280nm之间.
  • 合成的NP显示出强大的过氧化酶活性和高染料去除能力 (93%在紫外线下,55%在室内照明下).

结论:

  • 塔马林斯印加树叶提取物为Fe3O4 NP合成提供了可行的绿色途径.
  • 合成的Fe3O4NP是生物医学应用的实用替代品.
  • 这些NP具有显著的催化活性,用于污染物降解和生物传感的潜力.