Search

Herein, we propose a comprehensive chemical experiment that include the preparation, characterization and lithium storage performance evaluation of mesoporous carbon-coated iron oxide nanoparticles. Students are guided to acquaint themselves with the characterization methods of material structure, the operation of battery assembly and battery testing technique. This experiment will disclose the interrelationship between material structure and performance to students, and cultivate their experiment skills, scientific literacy, and practical innovation ability. Furthermore, this experiment serves as a gateway for students to explore the frontier in new energy, and stimulate their scientific interest. Therefore, this experiment is recommended as a comprehensive chemical experiment course for senior undergraduates majoring in materials chemistry or applied chemistry. [ABSTRACT FROM AUTHOR]

The research progress of various iron oxides and their modified materials in adsorbing heavy metal ions in water in recent years is reviewed ・ The adsorption effects of iron oxides and their modified materials on various heavy metal ions in water is introduced，and the mechanisms are summarized and analyzed ・ The main problems in the current research on the adsorption of heavy metal ions in water by iron oxides and their modified materials are pointed out, and the application prospects of the materials are prospected. [ABSTRACT FROM AUTHOR]

Hollow Fe2O3 particles were prepared by hydrothermal synthesis. The effects of Fe2O3 concentration， initial concentration of dioctyl phthalate (DOP)， pH value and H2O2 concentration on the photocatalytic degradation of DOP aqueous solution were experimentally studied using halogen lamp as light source. The photocatalytic degradation mechanism of DOP with Fe2O3 particles was studied with GC-MS technology. The results showed that without H2O2 addition， the photocatalytic degradation rate of DOP is the greatest when the Fe2O3 concentration， DOP initial concentration， and pH value were 100mg/L， 20mg/L and 7， respectively. During the degradation process， the branched chain of benzene ring degrades first， then the benzene ring is opened， and the ultimate products are CO2 and H2O. [ABSTRACT FROM AUTHOR]

A series of the iron oxide particles with different morphology were prepared by changing the hydrothermal synthesis conditions, type and addition amount of surfactant. The morphology, size and crystal form of the iron oxide particles were characterized using scanning electron microscopy and X-ray diffraction measurement. The results showed that the reaction temperature, reaction time, pH value and reactant amount could affect morphology and size of the iron oxide particles. The iron oxide particles with sheet-like, cubic, burger-like, shuttle-like, rectangular, walnut-like, hexagonal prism and hollow morphology can be obtained by adjusting the additive type and other experimental conditions. The controllable preparation of the iron oxide particles with different morphology is realized. [ABSTRACT FROM AUTHOR]