Preparation of chitosan modified fly ash under acid condition and its adsorption mechanism for Cr(VI) in water

• Published in: Journal of Central South University Vol. 28; no. 6; pp. 1652 - 1664
• Main Authors: Jiang, Chun-lu, Wang, Rui, Chen, Xing, Zheng, Liu-gen, Cheng, Hua
• Format: Journal Article
• Language: English
• Published: Changsha Central South University 01.06.2021; Springer Nature B.V
• Subjects: Acetic acid; Adsorption; Ammonia; Chitosan; Crystal structure; Engineering; Fly ash; Functional groups; Liquid phases; Liquid surfaces; Metallic Materials; Silicon dioxide; Sulfuric acid leaching; Surface chemistry; Surface roughness; fly ash (CWF); chitosan; adsorption; 壳聚糖; 改性; Cr(VI); 粉煤灰; 吸附; 六价铬; modification

Chitosan-coated fly ash (CWF) was prepared by the acid leaching-coating method. Chitosan and fly ash were crosslinked in the solution of acetic acid and sulfuric acid. The microstructure of CWF was conducted by scanning electron microscope (SEM) and X-ray diffraction (XRD). The removal of Cr(VI) fro...