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用于新出现污染物的吸附剂的不同形态的SBA-15:实验和分子模拟研究

Francisco Emanuel da Silva¹, Marcela Pires Spaolonzi², Sibele Berenice Castellã Pergher¹

¹Institute of Chemistry, Universidade Federal Do Rio Grande Do Norte, Senador Salgado Filho Av., 3000, Natal, Rio Grande Do Norte, 59078-970, Brazil.

Environmental science and pollution research international

|May 28, 2025

概括

这项研究探讨了使用各种形状的SBA-15来从水中去除双醇,西普罗素和洛萨坦. 六角镜显示出最佳性能,突出显示了用于污染物去除的西兰醇组相互作用.

科学领域:

材料科学材料科学材料科学
环境化学环境化学
纳米技术纳米技术

背景情况:

新兴的污染物如双,西普罗素和洛萨坦会给环境带来风险.
SBA-15是一种半孔材料,正在研究其吸附能力.
材料形态学可以显著影响吸附效率.

研究的目的:

为了评估使用SBA-15具有多种形态的Bisphenol,Ciprofloxacin和Losartan的吸附.
将实验结果与分子模拟进行比较.
为了阐明吸附机制和动力学.

主要方法:

用球形,六角镜,米粒和棒形态合成SBA-15.
对目标污染物的吸附实验.
福利埃变换红外光谱 (FTIR) 和核磁共振 (NMR) 用于材料特征.
分子模拟用于研究吸附剂-吸附剂相互作用.
动力和异热模型 (伪第一阶,B.E.T. 异热体). 这种方法是:

主要成果:

六角镜SBA-15显示出Ciprofloxacin的最高去除效率 (66.41%) 和吸附能力 (0.068 mmol g-1).
在不同的SBA-15形态学中,西兰醇组比例有所不同.
在50分钟后达到吸附平衡,最好用伪第一阶动力模型来描述.
最佳吸附发生在35°C时,符合BET的要求. 同热体模型. 同热体模型.

结论:

SBA-15,特别是六角镜,是有效的去除新出现的污染物.
醇基在吸附机制中起着至关重要的作用.
分子模拟提供了有关污染物-吸收剂相互作用的见解.

关键词:

吸附方式吸附方式吸附方式新出现的污染物新出现的污染物形态学形态学形态学在SBA-15中,它是SBA-15.

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