相关实验视频

Updated: May 14, 2026

In Situ Synthesis of Gold Nanoparticles without Aggregation in the Interlayer Space of Layered Titanate Transparent Films

In Situ Synthesis of Gold Nanoparticles without Aggregation in the Interlayer Space of Layered Titanate Transparent Films

Published on: January 17, 2017

对TiO₂和活性碳复合物的协同吸附和光催化研究

Yihang Yue¹, Xiaoju Yue^1,2, Xiaofeng Tang³

¹Key Laboratory of Plateau Oxygen and Living Environment of Tibet Autonomous Region, College of Science, Tibet University, Lhasa 850000, China.

|May 23, 2024

概括

来自高原大麦的活性炭 (AC) 支持二氧化 (TiO2) 以有效地去除水污染物. 该TiO2/AC复合物实现了99.6%的甲蓝降解,展示了其用于净水的潜力.

科学领域:

环境化学环境化学
材料科学材料科学材料科学
催化剂是一种催化剂.

背景情况:

织和染色工业产生有机污染物,威胁水生生态系统.
来自生物质的活性碳 (AC) 为催化剂支持提供了一个可持续的平台.
来自中国高原地区的高地大麦提供了一个独特的,未得到充分利用的生物质资源.

研究的目的:

开发和评估用于废水中降解有机污染物的TiO2/AC复合材料.
调查TiO2加载对来自高原大麦草的AC光催化活性的影响.
评估合成光催化剂的可重复使用性.

主要方法:

类似于石墨的AC是从高地大麦草中合成的.
TiO2/AC复合材料是使用超声波浸制备的,具有不同的TiO2负载.
在照射下进行了甲蓝 (MB) 的光催化降解.
材料表征证实了多晶体解剖酶和鲁基相与分散的TiO2纳米粒子.
动力分析遵循伪第一阶模型.

主要成果:

TiO2/AC复合物表现出增强的吸附和MB降解的活性点.
在3wt%的TiO2负载下实现了最佳的光催化活性,产生99.6%的MB降解效率.
催化剂表现出高稳定性,在5个反应周期后保持活性.
降解过程遵循伪第一阶动力学.

结论:

从高地大麦中提取的TiO2/AC复合材料是有效的光催化剂,用于去除有机污染物.
该材料提供了一种可持续的废水处理方法,解决了污染和农业废物问题.
这项技术对中国高原地区的水净化具有前景.

关键词:

活性炭是一种活性炭.高地大麦草草.协同作用的降解降解.二氧化二氧化是什么? 二氧化二氧化是什么

更多相关视频

The Effect of Interfacial Chemical Bonding in TiO2-SiO2 Composites on Their Photocatalytic NOx Abatement Performance

The Effect of Interfacial Chemical Bonding in TiO2-SiO2 Composites on Their Photocatalytic NOx Abatement Performance

Published on: July 4, 2017

Preparation of Biomass-based Mesoporous Carbon with Higher Nitrogen-/Oxygen-chelating Adsorption for CuII Through Microwave Pre-Pyrolysis

Preparation of Biomass-based Mesoporous Carbon with Higher Nitrogen-/Oxygen-chelating Adsorption for CuII Through Microwave Pre-Pyrolysis

Published on: February 12, 2019

相关概念视频

Catalysis

Catalysis

The presence of a catalyst affects the rate of a chemical reaction. A catalyst is a substance that can increase the reaction rate without being consumed during the process. A basic comprehension of a catalysts’ role during chemical reactions can be understood from the concept of reaction mechanisms and energy diagrams.

Heterogeneous Catalysis

Heterogeneous Catalysis

Heterogeneous catalysis involves a catalyst in a different phase from the reactants. It is a process where the catalyst and the reactants are in distinct phases, typically solid and gas or liquid.Most heterogeneous catalysts are metals, metal oxides, or acids. The list includes transition metals like iron (Fe), cobalt (Co), nickel (Ni), palladium (Pd), platinum (Pt), chromium (Cr), manganese (Mn), tungsten (W), silver (Ag), and copper (Cu). These metals possess partially vacant d orbitals that...