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Precipitation and Co-precipitation01:17

Precipitation and Co-precipitation

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Precipitation and coprecipitation methods can be used to separate a mixture of ions in a solution. In qualitative inorganic analysis, ions that form sparingly soluble precipitates with the same reagent are separated based on the differences in solubility products. For example, consider the separation of Cu(II) and Fe(II) ions by precipitation as insoluble sulfides. First, copper(II) sulfide is precipitated by the addition of acidic H2S, where the dissociation of H2S is suppressed. Adding H2S...
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相关实验视频

Updated: May 3, 2026

Synthesis and Characterization of High c-axis ZnO Thin Film by Plasma Enhanced Chemical Vapor Deposition System and its UV Photodetector Application
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和盐水凝工程用于调ZnO紫外线传感器性能和减轻湿度干扰.

Yunfu Cui1, Li Cheng1, Bolang Cheng2

  • 1School of Materials and Energy, Lanzhou University, Lanzhou, Gansu 730000, China.

ACS applied materials & interfaces
|January 9, 2026
PubMed
概括
此摘要是机器生成的。

这项研究揭示了湿度如何增强氧化 (ZnO) 紫外线 (UV) 传感器. 一个新的凝调节传感器克服了湿度干扰,提高了紫外线检测可靠性和性能.

关键词:
ZnO 紫外线传感器竞争性的吸附竞争.湿度工程 湿度工程 湿度工程绩效监管 绩效监管 绩效监管 绩效监管 绩效监管 绩效监管和盐水凝是一种和盐水凝.

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相关实验视频

Last Updated: May 3, 2026

Synthesis and Characterization of High c-axis ZnO Thin Film by Plasma Enhanced Chemical Vapor Deposition System and its UV Photodetector Application
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科学领域:

  • 材料科学 材料科学 材料科学
  • 化学工程是化学工程的重要组成部分.
  • 传感器技术 传感器技术

背景情况:

  • 湿度通常会通过干扰氧气吸附来降低氧化 (ZnO) 紫外线 (UV) 传感器性能.
  • 这种干扰损害了环境监测应用中紫外线检测的可靠性.

研究的目的:

  • 研究水 (H2O) 和氧 (O2) 在 ZnO 表面上的竞争性吸附机制.
  • 开发一种新的ZnO紫外线传感器,利用湿度作为性能调节因素,克服其有害影响.

主要方法:

  • 系统地阐明H2O和O2.2之间的竞争性吸附机制.
  • 开发一种和盐凝调制的ZnO紫外线传感器 (SSHM-ZnO-UVS).
  • 在不同相对湿度水平 (15%至89%) 下评估传感器性能.

主要成果:

  • SSHM-ZnO-UVS显示抑制了依赖湿度的光响应,响应,响应时间和恢复时间的波动有限 (1.09%,4.36%,4.36%).
  • 传感器允许在响应速度和灵敏度之间进行可调节的权衡.
  • 实现超快速操作 (1.8秒响应,1.4秒恢复) 或高灵敏度 (1.6 × 10^4的开/关比).

结论:

  • 湿度可以被设计成一个功能调节器,以提高ZnO紫外线传感器的性能.
  • 开发的SSHM-ZnO-UVS策略提供了一种可通用的方法来提高紫外线传感器的可靠性和可调性.
  • 这项研究将已知的局限性转化为先进的紫外线传感应用的优势.