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使用胺改性磁性硅藻土作为吸附剂去除硫丹

Endosulfan Elimination Using Amine-Modified Magnetic Diatomite as an Adsorbent.

作者信息

Alacabey İhsan

机构信息

Vocational Higher School of Healthcare Studies, Mardin Artuklu University, Mardin, Turkey.

出版信息

Front Chem. 2022 May 26;10:907302. doi: 10.3389/fchem.2022.907302. eCollection 2022.

DOI:10.3389/fchem.2022.907302
PMID:35720987
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9205645/
Abstract

Pesticides are among the most dangerous developing toxins since they are very hazardous to the environment and threaten human health. In this study, researchers successfully manufactured surface-modified magnetic diatomite (m-DE-APTES) and used them as a sorbent to extract endosulfan from an aqueous solution. There is no other study like it in the scholarly literature, and the results are astounding. Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), energy dispersive X-ray (EDX), electron spin resonance (ESR), and surface area measurements were used to analyze magnetic diatomite particles with surface modification. According to the analysis results, magnetic diatomite has a wide surface area and a porous structure. Furthermore, m-DE-APTES has a higher endosulfan adsorption capacity (97.2 mg g) than raw diatomite (DE) (16.6 mg g). Adsorption statistics agree with Langmuir adsorption isotherm ( = 0.9905), and the adsorption occurred spontaneously at -2.576 kj mol in terms of ΔG. Finally, m-DE-APTES are a viable alternative adsorbent for removing pesticides from aqueous solutions.

摘要

农药是最危险的正在形成的毒素之一，因为它们对环境危害极大并威胁人类健康。在本研究中，研究人员成功制备了表面改性的磁性硅藻土（m-DE-APTES），并将其用作从水溶液中萃取硫丹的吸附剂。学术文献中没有其他类似的研究，其结果令人震惊。采用傅里叶变换红外光谱（FTIR）、扫描电子显微镜（SEM）、能量色散X射线（EDX）、电子自旋共振（ESR）和表面积测量等方法对表面改性的磁性硅藻土颗粒进行分析。根据分析结果，磁性硅藻土具有较大的表面积和多孔结构。此外，m-DE-APTES对硫丹的吸附容量（97.2 mg/g）高于原生硅藻土（DE）（16.6 mg/g）。吸附统计符合朗缪尔吸附等温线（ = 0.9905），从ΔG来看，吸附在-2.576 kj/mol时自发发生。最后，m-DE-APTES是从水溶液中去除农药的一种可行的替代吸附剂。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5212/9205645/cf93fe65b7e3/fchem-10-907302-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5212/9205645/8380c8e80ad6/fchem-10-907302-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5212/9205645/239755eb82b4/fchem-10-907302-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5212/9205645/bb860b740d48/fchem-10-907302-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5212/9205645/48ceb6f4577b/fchem-10-907302-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5212/9205645/7918c31e8531/fchem-10-907302-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5212/9205645/af0f01a71aff/fchem-10-907302-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5212/9205645/2af7a17e46b6/fchem-10-907302-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5212/9205645/ec41e8c7a401/fchem-10-907302-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5212/9205645/cf93fe65b7e3/fchem-10-907302-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5212/9205645/8380c8e80ad6/fchem-10-907302-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5212/9205645/239755eb82b4/fchem-10-907302-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5212/9205645/bb860b740d48/fchem-10-907302-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5212/9205645/48ceb6f4577b/fchem-10-907302-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5212/9205645/7918c31e8531/fchem-10-907302-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5212/9205645/af0f01a71aff/fchem-10-907302-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5212/9205645/2af7a17e46b6/fchem-10-907302-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5212/9205645/ec41e8c7a401/fchem-10-907302-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5212/9205645/cf93fe65b7e3/fchem-10-907302-g009.jpg

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