Author(s)

Qing Guo¹, Xiao Wang¹, Wanke Chen¹, Xiaoyan Wang¹, Jing Yuan^2,3*, Qianfeng Zhang^1*

¹Institute of Molecular Engineering and Applied Chemistry, Anhui University of Technology, Ma’anshan, China.
²Department of Civil Engineering, Tongling University, Tongling, China.
³Department of Civil Engineering, Manitoba University, Winnipeg, Canada.

In this paper, biochar (BC) was used as raw material, activated by deionizing aqueous solution, NaCl solution, CA solution and HCl solution respectively. Epichlorohydrin (EPI) was used as crosslinking agent, and β-cyclodextrin (β-CD) was used to modify biochar (BC). The prepared modified biochar materials were labeled with β-CDBC, β-CDBC-Na, β-CDBC-CA and β-CDBC-H, respectively. The infrared spectrum, X-ray diffractometer, scanning electron microscope and specific surface area of the four modified materials were tested. The results showed that the C-O stretching vibration peak at 1020 cm⁻¹ of the modified materials was slightly offset compared with that of biochar. The characteristic absorption peaks of XRD pattern decrease obviously at 2θ = 26.7˚ and 29.5˚. It can be obviously observed on the electron microscope image that the surface is loaded or formed clathrates, and BET data and graphs also show that the specific surface area of the modified biochar is larger. Therefore, β-cyclodextrin successfully modified biochar and formed clathrates on the surface of biochar or was loaded in the pore structure of biochar, especially β-CDBC-CA achieved better modification effect. Because biochar and β-cyclodextrin raw materials are cheap, easy to prepare and green, and less prone to secondary pollution, it has a good advantage in environmental governance.

Biochar, β-Cyclodextrin, Modification, Clathrate, Green Environmental Protection

Guo, Q. , Wang, X. , Chen, W. , Wang, X. , Yuan, J. and Zhang, Q. (2024) Synthesis and Characterization of β-Cyclodextrin Modified Biochar Environmental Remediation Materials. Journal of Materials Science and Chemical Engineering, 12, 42-52. doi: 10.4236/msce.2024.124004.