相关实验视频

Updated: Jun 4, 2025

Isolation of Native Soil Microorganisms with Potential for Breaking Down Biodegradable Plastic Mulch Films Used in Agriculture

Isolation of Native Soil Microorganisms with Potential for Breaking Down Biodegradable Plastic Mulch Films Used in Agriculture

Published on: May 10, 2013

微塑料从经过紫外线照射和微生物殖民的包装材料中的吸附行为

Miao Hu¹, Siao Sun², Hongzhu Ma¹

¹School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'An, Shaanxi 710119, PR China.

Marine pollution bulletin

|January 3, 2025

概括

包装材料中的老化微塑料 (MP) 与水晶紫色染料相互作用. 由于紫外线和微生物的影响,它们的表面变化通过结,静电吸引和疏水相互作用影响着染料吸附.

科学领域:

环境科学环境科学
材料科学材料科学材料科学
化学化学化学

背景情况:

微塑料 (MP) 在自然界中经历老化,改变其表面特性.
老龄化影响了国会议员如何与环境污染物相互作用.

研究的目的:

研究紫外线照射和微生物殖民对聚乙烯和聚烯MP的表面特征的影响.
探索老年国会议员对水晶紫色 (CV) 染料的吸附行为.
了解溶液盐度和pH在MP-染料相互作用中的作用.

主要方法:

刺激紫外线照射和微生物殖民,使国会议员变老.
分析表面的物理化学特征 (生物膜,功能组,O/C比,水友性,表面电荷).
用CV染料在不同盐度和pH值下进行吸附实验,使用动态和异热模型进行分析.
福利埃变换红外光谱 (FTIR) 用于相互作用确认.

主要成果:

老化显著改变了MP表面特性,包括增加水友性和表面电荷的变化.
CV的MP吸附受溶液盐度和pH的影响.
吸附在异质表面上遵循多层动力学,由结合,静电吸引和疏水相互作用驱动.

结论:

自然老化过程改变了MP表面的特性,影响了它们与污染物的相互作用.
年长的国会议员可以充当水晶紫色等污染物的载体.
了解这些相互作用对于评估微塑料对环境的风险至关重要.

关键词:

界面相互作用界面相互作用微生物的殖民化微塑料是一种微塑料.紫外线辐射的紫外线辐射.

更多相关视频

Sampling, Identification and Characterization of Microplastics Release from Polypropylene Baby Feeding Bottle during Daily Use

Sampling, Identification and Characterization of Microplastics Release from Polypropylene Baby Feeding Bottle during Daily Use

Published on: July 24, 2021

Sampling, Sorting, and Characterizing Microplastics in Aquatic Environments with High Suspended Sediment Loads and Large Floating Debris

Sampling, Sorting, and Characterizing Microplastics in Aquatic Environments with High Suspended Sediment Loads and Large Floating Debris

Published on: July 28, 2018

相关概念视频

Physical Methods for Controlling Microbial Growth: Radiation and Filtration

Physical Methods for Controlling Microbial Growth: Radiation and Filtration

Radiation and filtration are essential tools for microbial control, targeting microorganisms through distinct mechanisms. Radiation eliminates microbes by damaging their DNA, either killing them or inhibiting their growth. Based on wavelength, radiation is classified into two types: nonionizing and ionizing radiation.Non-ionizing radiation, such as UV radiation (200–400 nm), is absorbed by DNA, causing defects that effectively disinfect surfaces, air, and water, including safety cabinets.