两性Ti3C2/脱皮的托尼特@聚氨海绵接种水性群体和极性含氧群体,以有效地去除多极性微塑料
Ting Huang1, Shiqi Xu1, Jing Li1
1School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China.
Journal of hazardous materials
|February 18, 2026
概括
这项研究从废弃的聚氨中开发了一种两性海绵,有效地从水中去除各种微塑料 (MP). 这种新材料显示出高效率和可重复使用性,为微塑料污染提供了可持续的解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 由于极性差异,传统的吸附剂难以去除多种微塑料 (MP).
- 废物聚氨 (PU) 海绵具有MP吸附的潜力,但缺乏足够的位点和可重复使用性.
研究的目的:
- 通过修改废弃PU海绵,为各种微塑料制造一种高效且可重复使用的吸附剂.
- 研究开发材料的吸附机制和稳定性.
主要方法:
- 再利用废弃的PU海绵,将Ti3C2和脱皮本顿石结合起来,以创建一个两性Ti3C2/脱皮本顿石@聚氨海绵 (Ti3C2/BTex@Sponge).
- 在特定条件下测试六个代表性MP (极地和非极地) 的吸附效率.
- 评估循环重复使用性,机械稳定性和pH适应性.
主要成果:
- 在30分钟内,Ti3C2/BTex@Sponge在0.1μg/L时实现了六种不同的MP的99%以上的吸附.
- 吸附效率在10个吸附-脱吸循环后仍然高于98%.
- 该材料在广泛的pH范围 (3.0-11.0) 中表现出极好的机械和化学稳定性.
结论:
- 两性Ti3C2/BTex@Sponge通过协同吸附机制有效地去除各种微塑料.
- 这一战略使废弃的PU海绵能够进行高价值的回收利用,并为MP清除提供了一种新的方法.
相关概念视频
01:17Ion Exchange
1.6K
Ion exchange chromatography separates charged molecules from a solution by reversibly exchanging them with mobile, or 'active', ions associated with the oppositely charged stationary phase. This method can be used to separate ions, soften and deionize water, and purify solutions. The polymers comprising the ion-exchange column are high-molecular-weight and chemically stable polymers, crosslinked to be porous and essentially insoluble. They are also functionalized with either acidic or...
1.6K
01:27Bioplastics
70
Bioplastics derived from microbial processes present a sustainable alternative to conventional petroleum-based plastics. Among these, polyhydroxyalkanoates (PHAs), particularly polyhydroxybutyrates (PHBs), have emerged as prominent candidates due to their biodegradability and biocompatibility. These polymers are synthesized by a variety of bacteria, such as Cupriavidus necator and Pseudomonas putida, which naturally accumulate PHAs as intracellular carbon and energy reserves, especially under...
70
01:28Microbial Bioremediation of Plastics
131
Polyethylene terephthalate (PET) is a synthetic polymer widely utilized in the packaging industry, particularly for bottles and containers. Due to its chemical stability and durability, PET accumulates in the environment, contributing significantly to plastic pollution. It comprises repeating units of terephthalic acid and ethylene glycol, resulting in a semi-crystalline structure that is resistant to natural degradation processes.A notable breakthrough in plastic biodegradation came with the...
131