Facile synthesis of a BCN nanofiber and its ultrafast adsorption performance

Junying Yu; Tianjiao Hu; Ci Du; Ye Zhang; Zengyong Chu; Yihe Li; Jing Cao

doi:10.1039/d0ra01938k

Facile synthesis of a BCN nanofiber and its ultrafast adsorption performance

RSC Adv. 2020 Jul 2;10(42):25200-25208. doi: 10.1039/d0ra01938k. eCollection 2020 Jun 29.

Authors

Junying Yu^{1

2}, Tianjiao Hu², Ci Du², Ye Zhang², Zengyong Chu², Yihe Li², Jing Cao¹

Affiliations

¹ College of Chemistry, Xiangtan University Xiangtan Hunan 411105 China yujunying2020@163.com caojing8088@xtu.edu.cn.
² College of Liberal Arts and Science, National University of Defense Technology Changsha 410073 China tjhu@nudt.edu.cn dc2006sg@126.com zhangye8905@foxmail.com chuzy@nudt.edu.cn yhli@nudt.edu.cn.

Abstract

Boron carbonitride (BCN) nanofibers with rapid and efficient adsorption performance were prepared by electrospinning technology. TEM, XRD, XPS and N₂ adsorption-desorption isotherms were performed to study the microstructure of the nanofibers. The results showed that the BCN fibers synthesized at 1000 °C (BCN-1000) have good crystallinity and high specific surface areas (403 m² g^-1). BCN-1000 nanofibers adsorb 70% of amino black 10B (AB-10B) within 10 minutes and reach adsorption equilibrium within 60 minutes. Compared with previous reports, it is found that the adsorption rate of BCN-1000 nanofibers to amino black (AB-10B) is much higher than that of other adsorbents. And BCN nanofibers exhibit a large adsorption capacity (625 mg g^-1). In addition, the process of AB-10B adsorption on BCN nanofibers was systematically investigated, which was in accordance with the pseudo-second-order kinetics model and Langmuir isotherm model.