生物炭
双功能
木质素
刚果红
过硫酸盐
核化学
废水
赤泥
化学
废物管理
吸附
有机化学
热解
工程类
催化作用
物理化学
作者
Yongchang Sun,Tingting Wang,Caohui Han,Lu Bai,Xiaoyin Sun
标识
DOI:10.1016/j.biortech.2022.128373
摘要
The lignin-based magnetic biochar (LMB) was fabricated with a facile one-step solvothermal method. The spherical Fe3O4 was successfully loaded on the lignin-based biochar. LMB could efficiently remove Cr(VI) and Congo red (CR) synergistically with the adsorption of biochar and the catalytic/reduction of Fe3O4. LMB showed a removal efficiency of 100 % for Cr(VI) (100 mg/L) at 30 min. The LMB could be a catalyst to activate persulfate (PS) to degrade CR. The LMB + PS system showed a removal efficiency of 94.3 % for CR at 60 min. Moreover, LMB could simultaneously remove 41.5 % of Cr(VI) and 91.5 % of CR in the mixed Cr(VI) and CR solution. The simulated wastewater studies showed that LMB exhibited superior high Cr(VI) (100 %) and CR (82 %) removal efficiencies with the coexistent of anions, cations, and organic matter. LMB can be effectively applied to remove Cr(VI) and CR and purify different contaminated water bodies.
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