现代地质2025，Vol.39Issue(3)：628-636,9.DOI:10.19657/j.geoscience.1000-8527.2024.116
碳纳米管对水铁矿相转化的影响与机制
The Effect and Mechanism of Carbon Nanotube on the Phase Transformation of Ferrihydrite
摘要
Abstract
Nano materials inevitably enter the soil and water environment in the process of usage and treatment,and then affect the composition,physicochemical properties,and the relative content of minerals in the near surface environment.However,the mechanism and process of mineral phase transformation in soil and soil by nanomaterial are still unclear.In this work,carbon nanotube(CNT),a typical nano material,was used to ex-plore its effect on the phase transformation of ferrihydrite(Fh),a widely distributed nano mineral,by means of X-ray diffraction,scanning electron microscope,zeta potential,Fourier transform infrared spectroscopy and am-monium oxalate extraction experiment.The obtained results show that the main transformed product of Fh is hematite.The oppositely charged CNT interacts with Fh through electrostatic attraction and the formation of Fe-O-C bonds,which inhibit the transformation process of Fh without changing the type of the product.In addi-tion,the coexisting CNT reduces the average particle size of hematite in the product.This work provides an ex-ample to understand the mechanism of mineral phase transformation in soil and explore the impact of artificial substances on soil.关键词
水铁矿/碳纳米管/矿物转化/赤铁矿Key words
ferrihydrite/carbon nanotube/mineral transformation/hematite分类
天文与地球科学引用本文复制引用
闫丽霞,任子贺..碳纳米管对水铁矿相转化的影响与机制[J].现代地质,2025,39(3):628-636,9.基金项目
山西省基础研究计划青年项目(202303021212162) （202303021212162）
山西省高等学校科技创新项目(2022L261). （2022L261）
