Enhancement of Cd(II) adsorption by rice straw biochar through oxidant and acid modifications

• Published in: Environmental science and pollution research international Vol. 28; no. 31; pp. 42787 - 42797
• Main Authors: He, Xian, Hong, Zhi-neng, Jiang, Jun, Dong, Ge, Liu, Hui, Xu, Ren-kou
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.08.2021; Springer Nature B.V
• Subjects: Acids; Adsorption; Aquatic Pollution; Atmospheric Protection/Air Quality Control/Air Pollution; Cadmium; Charcoal; Earth and Environmental Science; Ecotoxicology; Environment; Environmental Chemistry; Environmental Health; Fourier transforms; Functional groups; Hydrogen peroxide; Infrared spectra; Muffle furnaces; Oxidants; Oxidizing agents; Pyrolysis; Research Article; Rice; Rice straw; Straw; Sulfuric acid; Titration; Waste Water Technology; Water Management; Water Pollution Control; H; HNO; Carboxyl functional groups; Modified biochar; SO; mixed acid; O; Cd(II) adsorption; HNO3/H2SO4 mixed acid; H2O2

To develop high-efficient biochar adsorbents, the effects and mechanisms of oxidant modification and acid modification on Cd(II) adsorption by rice straw biochar were investigated. Three rice straws from Langxi in Anhui Province, Yingtan in Jiangxi Province, and Lianyungang in Jiangsu Province were...