通过统计物理模型进行高级分析,以研究使用巴西坚果外活性碳从废水中去除甲基醇的效率
Salah Knani1,2, Ismahene Ben Khemis3, Wassim Zahrouni4
1Center for Scientific Research and Entrepreneurship, Northern Border University, 73213, Arar, Saudi Arabia. saleh.kenani@nbu.edu.sa.
Scientific reports
|December 31, 2024
概括
巴西坚果外活性炭有效地从水中去除甲基醇. 这项研究量化了吸附,揭示了一个自发的,外热过程,高效率高达103.16毫克/克在55°C.
科学领域:
- 环境化学环境化学
- 材料科学 材料科学 材料科学
- 吸附科学 吸附科学
背景情况:
- 甲基醇是一种化合物,是工业废水中常见的污染物.
- 来自生物质的活性炭提供了一个可持续的吸附材料.
- 巴西坚果是一种未充分利用的农业废物,适合用于吸附剂生产.
研究的目的:
- 准备和表征巴西坚果活性炭 (BNAC).
- 为了研究BNAC从水溶液中去除甲基醇的吸附特性.
- 用统计物理学和热力学分析阐明吸附机制.
主要方法:
- 来自巴西坚果外的活性炭的制备和表征.
- 在不同的pH值和温度下实验量化catechol吸附异热体.
- 将吸附数据与单层模型和统计物理计算相匹配.
- 热力学参数 (,内部能量,吉布斯自由能量) 的分析.
主要成果:
- 最大catechol吸附能力在89.98至103.16 mg/g之间.
- 发现吸附是外热的,容量随着温度升至55°C而增加.
- 具有非平行方向 (n > 1) 的catechol分子被吸附,表明多层相互作用.
- 计算的摩尔吸附能量 (19.0422.37 kJ/mol) 暗示了一个物理吸附过程.
- 吸附剂表现出单模式毛孔大小和位点能量分布.
结论:
- 巴西坚果外活性炭是一种有效的吸附剂,用于去除甲基醇.
- 吸附过程是自发的,外热的,并由物理吸附机制驱动.
- 该研究提供了对水处理应用的吸附机制和吸附剂特性的见解.
更多相关视频
13:35A Convenient Method for Extraction and Analysis with High-Pressure Liquid Chromatography of Catecholamine Neurotransmitters and Their Metabolites
Published on: March 1, 2018
14.5K
10:44Preparation of Biomass-based Mesoporous Carbon with Higher Nitrogen-/Oxygen-chelating Adsorption for CuII Through Microwave Pre-Pyrolysis
Published on: February 12, 2019
9.8K
相关概念视频
01:30Microbial Wastewater Treatment
Microbial communities in aquatic ecosystems play a key role in the natural breakdown of contaminants introduced through domestic and industrial effluents. Acting as biological catalysts, these microbes change and mineralize a wide range of organic and inorganic pollutants under different redox conditions.In oxygen-rich surface waters, aerobic heterotrophs lead organic matter breakdown, using oxygen as the terminal electron acceptor to efficiently oxidize substrates to carbon dioxide and water.
01:30Biological Treatment of Effluent and Waste Water
Biological wastewater treatment relies on the metabolic activity of microorganisms to remove pollutants from sewage. In modern treatment systems, this process is organized into sequential stages that progressively reduce solid material, dissolved organic matter, and microbial contamination. Each stage plays a distinct role in improving water quality and preparing the effluent for safe discharge or reuse.Primary and Secondary TreatmentPrimary treatment is a physical process that removes large...