Uranium removal performance and mechanism of polyaniline-modified pomelo peel biochar composite material

Wei Guo
, 
Ziang Bai
, 
Hongwei Pang
, 
Xiangxue Wang
, 
Shujun Yu
, 
Dong Fu
, 
Xiangke Wang
Publication type: Journal Article
Publication date: 2024-08-01
scimago Q4
SJR: 0.195
CiteScore: 1.0
Impact factor: —
ISSN: 16747224, 20959435
Abstract
核能作为清洁能源,可以很好地解决传统化石能源所带来的高污染问题,因而在近些年来得以快速发展.但核燃料在开采、运输、利用等过程中,放射性核素U(VI)会由于操作不当等原因进入水体环境中,对环境以及生物的健康产生威胁.本研究以厨余垃圾之一的柚子皮为原材料制备生物炭(BC),再加以聚苯胺改性,制成聚苯胺/生物炭复合材料(BC-PANI),将其应用于水体中U(VI)的去除.通过SEM、EDS、XRD、BET、FT-IR等一系列表征,证实了富氨基官能团的BC-PANI材料的成功制备.通过宏观批次实验,探究了反应时间、温度、pH、离子强度等因素对材料吸附U(VI)的影响.结果表明,BC-PANI在328 K下对U(VI)的最大吸附量可达80.6 mg·g-1,在15 min就可达到吸附平衡.宏观实验和XPS分析说明BC-PANI高效去除U(VI)是氨类官能团的化学吸附与还原反应的协同作用.此外,BC-PANI的循环实验表明其具有良好重复利用性,经济效益较高.综上,BC-PANI是一种高效、低成本、可循环使用的材料,具有很大应用前景,本研究也对放射性核素的去除治理提供了一定的参考价值.
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Wei Guo et al. Uranium removal performance and mechanism of polyaniline-modified pomelo peel biochar composite material // Scientia Sinica Chimica. 2024.
GOST all authors (up to 50) Copy
Wei Guo, Bai Z., Pang H., Wang X., Yu S., Fu D., Wang X. Uranium removal performance and mechanism of polyaniline-modified pomelo peel biochar composite material // Scientia Sinica Chimica. 2024.
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TY - JOUR
DO - 10.1360/ssc-2024-0043
UR - https://engine.scichina.com/doi/10.1360/SSC-2024-0043
TI - Uranium removal performance and mechanism of polyaniline-modified pomelo peel biochar composite material
T2 - Scientia Sinica Chimica
AU - Wei Guo
AU - Bai, Ziang
AU - Pang, Hongwei
AU - Wang, Xiangxue
AU - Yu, Shujun
AU - Fu, Dong
AU - Wang, Xiangke
PY - 2024
DA - 2024/08/01
PB - Science in China Press
SN - 1674-7224
SN - 2095-9435
ER -
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Cite this
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@article{2024_Wei Guo,
author = {Wei Guo and Ziang Bai and Hongwei Pang and Xiangxue Wang and Shujun Yu and Dong Fu and Xiangke Wang},
title = {Uranium removal performance and mechanism of polyaniline-modified pomelo peel biochar composite material},
journal = {Scientia Sinica Chimica},
year = {2024},
publisher = {Science in China Press},
month = {aug},
url = {https://engine.scichina.com/doi/10.1360/SSC-2024-0043},
doi = {10.1360/ssc-2024-0043}
}