相关实验视频

Updated: Jun 19, 2025

Resource Recycling of Red Soil to Synthesize Fe2O3/FAU-type Zeolite Composite Material for Heavy Metal Removal

Resource Recycling of Red Soil to Synthesize Fe2O3/FAU-type Zeolite Composite Material for Heavy Metal Removal

Published on: June 2, 2022

在红土上通过光催化和吸附驱动的NO_x沉和价值化

Xueqin Xu¹, Ram Kumar Shrestha², Jiawang Shu¹

¹College of Resources and Environment, Southwest University, Beibei, Chongqing, 400715, China.

The Science of the total environment

|July 25, 2024

概括

红土可以将有害的氧化 (NOx) 转化为植物可用的酸盐. 添加氧化或二氧化可以增强这一过程,为空气污染和农业提供可持续的解决方案.

科学领域:

环境科学环境科学
土壤科学土壤科学
催化剂是一种催化剂.

背景情况:

氧化 (NOx) 排放对人类健康和生态系统构成重大风险.
目前的NOx管理技术面临技术和财务限制.

研究的目的:

研究红色土壤作为光催化剂的潜力,用于将NOx转化为土壤酸 (NO3 - N).
评估氧化 (ZnO) 和二氧化 (TiO2) 对NOx去除效率的影响.
评估NOx转化对植物生物质和矿物营养的影响.

主要方法:

使用红土作为光催化剂,在紫外线下转化NOx.
在不同的度下 (1ppm和100ppm) 评估了含有或不含有ZnO和TiO2的NOx沉效率.
使用水菜 (Ipomoea aquatica Forsk) 进行了盆栽实验,以评估沉对植物生长和营养的影响.

主要成果:

红土证明了NOx到NO3--N的光催化转化.
添加 ZnO 和 TiO2 提高了 1 ppm NO 的光催化去除效率,在紫外线下达到 77%.
在100ppm的NOx下,红土吸附效率 (16.02%) 比光催化 (7.70%) 更高.
沉的NO3 - - N促进了水菜生物质,而ZnO/TiO2的添加影响了植物的矿物营养.

结论:

红土可以有效地用作光催化剂,将工业NOx排放转化为植物可用的.
ZnO和TiO2提高了NOx去除效率,为减轻空气污染提供了可行的战略.
这种方法为NOx利用提供了一条新的途径,有助于在空气-土壤-工厂系统中促进循环.

关键词:

吸附方式吸附方式吸附方式没有 (x)植物生长植物生长土壤酸盐的.土壤光催化物的光催化.

更多相关视频

CO2 Photoreduction to CH4 Performance Under Concentrating Solar Light

CO2 Photoreduction to CH4 Performance Under Concentrating Solar Light

Published on: June 12, 2019

Photochemical Oxidative Growth of Iridium Oxide Nanoparticles on CdSe@CdS Nanorods

Photochemical Oxidative Growth of Iridium Oxide Nanoparticles on CdSe@CdS Nanorods

Published on: February 11, 2016

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.

Bioremediation

Bioremediation

Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.