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Citation: Dandan Cai, Changping Ruan, Jianhua Qiu, Liyun Wu, Cong Zhang, Yuzhen Zhang. Synthesis of Magnetic Co/C Nanocomposite and Its Adsorption Performance for Congo Red in Aqueous Systems[J]. University Chemistry, ;2020, 35(12): 212-220. doi: 10.3866/PKU.DXHX201911005 shu

Synthesis of Magnetic Co/C Nanocomposite and Its Adsorption Performance for Congo Red in Aqueous Systems

School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, Guangxi Province, P. R. China

Corresponding author: Changping Ruan, cpruan@mailbox.gxnu.edu.cn
Received Date: 4 November 2019

This comprehensive experiment has successfully introduced the frontier of scientific research into undergraduate laboratory teaching. A magnetic Co/C nanocomposite was synthesized by using ZIF-67 as the precursor. Upon calcination at high temperature in inert atmosphere, ZIF-67 was degraded and carbonized to form Co/C nanocomposite. The adsorption performance of Co/C nanocomposite for Congo Red was investigated in detail. The structure and composition of the nanocomposite were investigated by X-ray diffraction (XRD) and scanning electron microscope (SEM). The concentration of Congo Red was determined by UV-Vis spectrophotometry. The kinetics data was fitted with the pseudo-first-order and pseudo-second-order kinetic models. The adsorption isotherms were analyzed according to Langmuir and Freundlich isotherm models. This experiment covers the synthesis of inorganic-organic hybrid material, characterization of materials, concentration determination of dyes, analysis of dynamics data and adsorption isotherms. Therefore, this experiment enables students to practice their experimental skills, increase their interest in scientific research, and broaden their professional knowledge.
- MOFs,
- Magnetic nanocomposite,
- Congo Red,
- Adsorption,
- Organic contaminants
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