Performance and mechanism of As(III/Ⅴ) removal from aqueous solution by novel positively charged animal-derived biochar
文献类型: 外文期刊
作者: Tao Sun;Penggang Pei;Yuebing Sun;Yingming Xu;Hongtao Jia
作者机构:
关键词: Adsorption;Animal-derived biochar;As(III/Ⅴ);Potential mechanism
期刊名称: Separation and Purification Technology
ISSN: 1383-5866
年卷期: 2022 年 290 卷
页码:
收录情况: SCIE(2022版) ; EI(2022版)
摘要: Arsenic (As), an extremely toxic metalloid, has a potential threat to the environment and human health. Crayfish shell, animal-derived biomass, was reused to prepare novel positively charged biochar (CSBC) at 300, 500, and 700 ℃ (CS300, CS500, and CS700) and the adsorption performance and mechanism of CSBC for As(III/Ⅴ) were investigated. The results revealed that pyrolysis temperature determined the physicochemical characteristics of CSBC. The maximum adsorption capacities of As(III/Ⅴ) on the CSBC predicted by the Langmuir model were following as: CS300 (7.71/8.40 mg·g-1) > CS700 (3.61/4.15 mg·g-1) > CS500 (2.61/2.76 mg·g-1), and the adsorption process reached equilibrium after 240 min. The spectroscopic characterization indicated the physical adsorption, electrostatic interaction, and complexation were involved in adsorption mechanisms of As(III/Ⅴ) by CSBC. Compared with CS500, the variety of functional groups on CS300 facilitated the complexation between it with As and the high degree of aromatization, and more positive charge for CS700 made it had stronger electrostatic interaction with As. These results highlight the significant potential of novel positively charged animal-derived biochar as an adsorbent for As(III/Ⅴ) removal from aqueous solution.
分类号:
- 相关文献
作者其他论文 更多>>
-
Multiscale investigation of oxidative aging on thiol–functionalized montmorillonite: Correlating structural and chemical degradation to the reduced affinity for Hg(II) and MeHg
作者:Ning Wang;Penggang Pei;Ge Gao;Yundi Kan;Linna Zhou;Bozhen Yu;Yuebing Sun
关键词:2D–COS;Aging;DFT;Hg;MeHg;Thiol–functionalized montmorillonite
-
Long-term cultivation of indica–japonica hybrid rice reshapes the sustainability of rice systems by simultaneously enhancing yield, nitrogen use efficiency, and soil health
作者:Jinjia Gan;Xinyue Xu;Sheng Tang;Kefeng Han;Tao Sun;Jinzhao Ma;Xiangde Yang;Xiu Liu;Haoran Fu;Zhihao Pang;Lingli Mao;Lianghuan Wu;Qingxu Ma
关键词:Indica–japonica hybrid rice;Long-term field experiment;Nitrogen use efficiency;Soil quality index
-
Palygorskite enhances microbial necromass carbon accumulation and drives heavy metal immobilization during chicken manure composting
作者:Shihang Wu;Tao Sun;Chao Wang;Renfu Zhang;Luqi Mi;Hao Yang;Xiaojia Zhou;Kexin Chen;Yuebing Sun
关键词:Composting;Heavy metals;Microbial necromass carbon;Palygorskite
-
Novel insights into the effect of arbuscular mycorrhizal fungi inoculation in soils under long-term biosolids application: Emphasis on antibiotic and metal resistance genes, and mobile genetic elements
作者:Tao Sun;Pierre Delaplace;Guihua Li;Anina James;Junting Pan;Jianfeng Zhang
关键词:Heavy metals;IS91 gene;Keystone taxa;Metagenome;Soil microbial community
-
Synergies and trade-offs of crop diversification system for productive, energy budget, economic, and environmental indicators in Northeast China
作者:Tao Sun;Haotian Chen;Li Yao;Xiaogang Yin;Zichao Zhao;Aixing Deng;Weijian Zhang;Xinhao Gao;Zhenwei Song
关键词:Crop diversification;Life cycle assessment;Net ecosystem economic budget;Northeast China;Z-score
-
Experimental study on anti-drift shield curtain device for soybean (Glycine max)-maize (Zeal mays) strip intercropping weed sprayers
作者:Yuxuan Jiao;Qingqing Zhou;Tao Sun;Chen Cai;Longfei Cui;Zhu Sun;Yongkui Jin;Wei Kong;Suming Ding;Xinyu Xue
关键词:
-
Multiscale Investigation of the interface interactions between humic acid-sulfhydryl grafted palygorskite composites and Cd2+
作者:Xiaojia Zhou;Haonan Lv;Tao Sun;Shihang Wu;Luqi Mi;Hao Yang;Renfu Zhang;Yuebing Sun
关键词:AFM force measurement;Cadmium;Humic acid;QCM-D adsorption;Sulfhydryl grafted palygorskite;Sustainable composite