将贝作为捕获CO2的潜在吸收材料的价值化
Daniel Pereira1, Marina Ilkaeva1,2, Francisco Vicente1
1CICECO-Instituto de Materiais de Aveiro, Departamento de Química, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
ACS omega
|April 29, 2024
概括
贝是一种可持续的废物,作为有效的固体吸附剂,可用于二氧化碳 (CO2) 捕获. 经过处理的贝显著提高了二氧化碳吸附能力,为碳捕获技术提供了一个环保的替代方案.
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:
- 传统的多孔吸附剂,如化物,,金属有机框架 (MOF) 和多孔碳广泛用于二氧化碳捕获.
- 贝废弃物是一个未充分利用的,可持续的资源,具有固有的多孔性和基组,适合二氧化碳吸附.
研究的目的:
- 为了研究贝的潜力,作为可持续的固体吸附剂,用于二氧化碳捕获.
- 通过选择性去蛋白化和去矿化处理,增强贝的二氧化碳吸附特性.
- 分析这些处理对纹理特性,二氧化碳吸附能力和物种化的影响.
主要方法:
- 贝的选择性脱蛋白化和脱矿化.
- 纹理属性的表征 (例如,表面积).
- 固态核磁共振 (NMR) 光谱用于原子尺度物种分析.
- 在标准条件下测量二氧化碳吸附能力 (1 bar, 298 K).
主要成果:
- 优化的贝样本实现了36 m2/g的表面积.
- 表现最好的样本显示了0.31 mmol/g的二氧化碳吸附能力.
- 与原始的贝相比,吸附能力和表面积显著增加 (分别为3.5和2倍).
结论:
- 经过处理的贝是有效和可持续的固体吸附剂,用于捕获二氧化碳.
- 渔业废弃物可以被转化为有价值的,环保的材料,用于碳捕获应用.
- 这种方法为传统吸附剂提供了具有成本效益和可再生能源的替代方案.
更多相关视频
06:34Operation of a 25 KWth Calcium Looping Pilot-plant with High Oxygen Concentrations in the Calciner
Published on: October 25, 2017
7.9K
08:00Author Spotlight: Standardizing the Development of Amine-Based Silica Composites as CO2 Adsorbents for Direct Air Capture
Published on: September 29, 2023
2.3K
相关概念视频
Bioremediation
17.4K
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.
17.4K
Porosity and Absorption of Aggregate
1.0K
Aggregates contain pores of varying sizes; while some are completely enclosed within the particles, others open onto the surface, allowing water to penetrate. The porosity of aggregates is a major factor contributing to the overall porosity of concrete, given that aggregates constitute about three-quarters of concrete's volume.
When all pores in an aggregate are filled with water, the aggregate is considered saturated and surface-dry. If left in dry air, water will evaporate until the...
When all pores in an aggregate are filled with water, the aggregate is considered saturated and surface-dry. If left in dry air, water will evaporate until the...
1.0K
Carbon-dioxide Fixation
873
Carbon dioxide fixation in prokaryotes enables the assimilation of inorganic carbon into organic molecules, supporting biosynthetic pathways, sustaining ecosystems, and contributing to the global carbon cycle. It also has industrial applications in carbon capture and bioproduct synthesis. Autotrophic organisms rely on this process to utilize CO₂ as a carbon source in diverse environments.The Calvin CycleThe Calvin cycle is the most widespread carbon fixation mechanism, primarily used by...
873
