Arsenic availability and uptake by edible rape (Brassica campestris L.) grown in contaminated soils spiked with carboxymethyl cellulose-stabilized ferrihydrite nanoparticles
文献类型： 外文期刊
第一作者： Huo, Lijuan
作者： Huo, Lijuan;Zeng, Xibai;Su, Shiming;Wang, Yanan;Bai, Lingyu;Wu, Cuixia;Huo, Lijuan;Huang, Daoyou
作者机构：
关键词： Arsenic; Bioavailability; Contaminated soil; HFO nanoparticles; Fe-o/Fe-d
期刊名称：ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH （ 影响因子：4.223； 五年影响因子：4.306 ）
ISSN： 0944-1344
年卷期： 2018 年 25 卷 15 期
页码：
收录情况： SCI
摘要： This study investigated arsenic (As) availability and uptake by rape (Brassica campestris L.) during two harvest periods of carboxymethyl cellulose (CMC)-stabilized ferrihydrite (HFO) nanoparticles for in situ treatment As-contaminated soil. Application of modified HFO nanoparticles in soils not only provided a larger specific surface area but also markedly improved stability against aggregation and recrystallization. For 90-day incubation, bare HFO particles were gradually converted to the crystalline Fe(III) oxide form, although this was not observed for the 0.5% CMC-HFO nanoparticles. CMC-modified HFO nanoparticles could be more effective in lowering the As uptake by rape and available As in soils than bare HFO particles. Compared the control without amendments, As contents in rape and available As in soils decreased 69.7 and 59.0%, respectively, during the second harvest when soils were amended with 0.5% HFO nanoparticles. And the soil-solution distribution coefficient (K (d) ) increased by 2.6 and 2.8 times for the first and second harvest. Furthermore, the ratio of amorphous and free Fe-oxides (Fe-o/Fe-d) showed significant negative linear correlations with As-plant (P < 0.01), available As (P < 0.05), and nonspecifically sorbed As in soil (P < 0.01). In contrast, Fe-o/Fe-d was positively correlated with K (d) and amorphous crystalline Fe/Al oxide-sorbed As, which suggests that a larger amount of As is associated with Fe(hydr)oxide in the amorphous phase or smaller particles.
分类号：
- 相关文献
作者其他论文 更多>>
-
Water-fertilizer regulation drives microorganisms to promote iron, nitrogen and manganese cycling: A solution for arsenic and cadmium pollution in paddy soils
作者：Zhang, Ting;Sun, Yifei;Zhang, Nan;Shan, Hong;Zeng, Xibai;Su, Shiming;Zhang, Ting;Colinet, Gilles;Parikh, Sanjai J.;Garland, Gina;Huo, Lijuan
关键词：Arsenic; Cadmium; Water regime; Fertilizer regime; Microbial process
-
Sepiolite-supported nanoscale zero-valent iron alleviates Cd&As accumulation in rice by reducing Cd&As bioavailability in paddy soil and promoting Cd&As sequestration in iron plaque
作者：Sun, Shuo;Zhang, Nan;Wang, Yanan;Zhang, Yang;Su, Shiming;Zeng, Xibai;Huang, Jiaqing;Wen, Jiong;Peng, Zhi
关键词：Sepiolite-supported nanoscale zero-valent iron; Cd&As co-contaminated soil; Cd&As bioavailability; Cd&As co-remediation; Iron plaque; Rice grain
-
Enhancing humoral and mucosal immune response of PED vaccine candidate by fusing S1 protein to nanoparticle multimerization
作者：Li, Minghui;Sun, Xueke;Wang, Siqiao;Wang, Yanan;Wang, Yue;Zhang, Gaiping;Li, Minghui;Sun, Xueke;Chen, Yilan;Wang, Siqiao;Li, Qin;Wang, Yanan;Wang, Yue;Li, Ruiqi;Zhang, Gaiping;Ding, Peiyang;Zhang, Gaiping;Ding, Peiyang;Zhang, Gaiping;Zhang, Gaiping;Zhang, Gaiping
关键词：PEDV; S1 protein; Nanoparticle; Subunit vaccine; Mucosal immunity
-
Response of Community Composition of Denitrifying Bacteria to Long-Term Fertilization in Alfisol Soil
作者：Zheng, Zhong;Wang, Yanan;Zeng, Xibai;Zhang, Yang;Zhang, Nan;Zhang, Tuo;Xu, Liyang;Wu, Cuixia;Wang, Yanan
关键词：qPCR; Microbial-related network; Long-term fertilization; nirK; nirS; nosZ
-
High performance Zn-Al LDH modified forward osmosis membrane with antibacterial, anti-membrane fouling, and photocatalytic degradation ability
作者：Wang, Yifan;Wu, Xiaowen;Chang, Endong;Huang, Zhaohui;Fang, Minghao;Min, Xin;Su, Shiming;Wang, Tingjuan;Su, Shiming;Wang, Jiancheng
关键词：Forward osmosis; Layered double hydroxide (LDH); Antibacterial; Anti-membrane fouling; Membrane fabrication
-
Characterization of Bacillus amyloliquefaciens BA-4 and its biocontrol potential against Fusarium-related apple replant disease
作者：Li, Bo;He, Xiaoxing;Guo, Saiya;Li, Dongxu;Wang, Yanan;Meng, Xianglong;Dai, Pengbo;Hu, Tongle;Cao, Keqiang;Wang, Shutong;Li, Bo
关键词：Bacillus amyloliquefaciens; Fusarium; apple replant disease; biocontrol; colonization
-
Metal-Binding Protein TaGlo1 Improves Fungal Resistance to Arsenite (AsIII) and Methylarsenite (MAsIII) in Paddy Soil
作者：Li, Lijuan;Sun, Yifei;He, Chao;Zeng, Xibai;Su, Shiming;Tian, Jian;Guan, Feifei;Huang, Ke;Xue, Ximei;Chen, Jian;Zhang, Tuo
关键词：rice rhizosphere; cysteine residues; detoxification; site-directed mutation; isothermal titration calorimetry
