| 莫凡,顾卫华,白建峰,王晓暖,赵静,彭圣娟,梁晶,郝瑞军.g-C3N4-SA改性阳极强化生物电化学系统修复重金属污染土壤[J].农业环境科学学报,2026,45(7):1697-1704. |
| g-C3N4-SA改性阳极强化生物电化学系统修复重金属污染土壤 |
| g-C3N4-SA modified anode enhancing bioelectrochemical system for remediation of heavy metal-contaminated soil |
| 投稿时间：2025-07-13 |
| DOI：10.11654/jaes.2025-0662 |
| 中文关键词: 生物电化学系统 阳极改性 石墨相氮化碳 海藻酸钠 重金属污染 土壤修复 |
| 英文关键词: bioelectrochemical system anode modification graphitic carbon nitride sodium alginate heavy metal pollution soil remediation |
| 基金项目:国家自然科学基金面上项目（42571076）；上海市科委地方院校能力提升计划（23010500500）；上海市浦东新区民生科研项目（PKJ2023-C07，PKJ2024-C02） |
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| 中文摘要: |
| 生物电化学系统（BES）是一种绿色能源技术，但其对多金属复合污染土壤的修复功效尚不明确，需进一步探索。土壤中的重金属会抑制阳极上微生物的生长，采用一些生物相容性材料可以有效提高生物活性。本研究采用石墨相氮化碳（g-C3N4）与海藻酸钠（SA）水凝胶对石墨棒（GR）阳极进行复合改性，通过涂覆法制备了g-C3N4-SA/GR阳极。结果表明，该改性阳极提升了GR的导电性和生物相容性，有效促进了电活性生物膜的快速形成。在修复污染土壤的实验中，采用g-C3N4-SA/GR阳极的BES与GR阳极相比，Cu、Zn、Cd、Pb的浸出率分别显著提高了33.97、16.41、37.50、13.46个百分点。 |
| 英文摘要: |
| Although bioelectrochemical systems（BES）represent a green energy technology, their remediation efficacy for multi-metal cocontaminated soil remains unclear and requires further exploration. However, the inhibitory effect of heavy metals on anode microorganisms restricts their application. A g-C3N4-SA/GR composite anode was fabricated by modifying a graphite rod（GR）anode with biocompatible graphitic carbon nitride（g-C3N4） and sodium alginate（SA） hydrogel using a coating method. The results demonstrated that this modification significantly enhanced the conductivity and biocompatibility of the anode, effectively promoting the rapid formation of electroactive biofilms. In experiments remediating soil co-contaminated, the BES equipped with the g-C3N4-SA / GR anode achieved significantly higher removal rates for Cu, Zn, Cd, and Pb by 33.97, 16.41, 37.50, and 13.46 percentage points, respectively, compared to the BES using a plain GR anode. |
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