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Efficiently reducing the plant growth inhibition of CuO NPs using rice husk-derived biochar: experimental demonstration and mechanism investigation
Sima, Xiao-Feng1; Shen, Xian-Cheng1; Fang, Tao2; Yu, Han-Qing1; Jiang, Hong1
2017-08-01
Source PublicationENVIRONMENTAL SCIENCE-NANO
ISSN2051-8153
Volume4Issue:8Pages:1722-1732
AbstractCuO nanoparticles (NPs) have been widely used, and the inevitable release of Cu species into agricultural soil would bring potential toxicity to edible plants. Soil remediation may be the last barrier to block the entrance of Cu into the food chain of human beings. In this study, we experimentally demonstrated a new application of biochar which can significantly reduce the biotoxicity of CuO NPs on seed germination and growth of wheat (Triticum aestivum L.). The results showed that the 3% wt addition of biochar to a hydroponic culture system can completely eliminate the inhibition effect of CuO NPs on plant growth even with concentrations of CuO NPs up to 500 mg L-1, based on the comparison of germination rate, growth, and fresh and dry weight of wheat. The Cu content of shoots and roots decreased by 3.7-7.8 and 3.3-4.9 times in the presence of biochar, respectively. Further exploration indicated that both the adsorption of Cu2+ and space shield by biochar significantly suppress the entrance of Cu2+ and CuO NPs into plant cells and consequently reduce the biotoxicity of CuO NPs. These findings are of particular significance to increasing the production of crops while preventing the accumulation of metallic NPs in the food chain.
SubtypeArticle
DOI10.1039/c7en00211d
WOS HeadingsScience & Technology ; Physical Sciences ; Life Sciences & Biomedicine
Indexed BySCI
Funding OrganizationNational Natural Science Foundation of China(21677138) ; National Natural Science Foundation of China(21677138) ; Key Special Program on the S&T for the Pollution Control and Treatment of Water Bodies(2012ZX07103-001) ; Key Special Program on the S&T for the Pollution Control and Treatment of Water Bodies(2012ZX07103-001) ; National Natural Science Foundation of China(21677138) ; National Natural Science Foundation of China(21677138) ; Key Special Program on the S&T for the Pollution Control and Treatment of Water Bodies(2012ZX07103-001) ; Key Special Program on the S&T for the Pollution Control and Treatment of Water Bodies(2012ZX07103-001)
Language英语
WOS Research AreaChemistry ; Environmental Sciences & Ecology ; Science & Technology - Other Topics
WOS SubjectChemistry, Multidisciplinary ; Environmental Sciences ; Nanoscience & Nanotechnology
WOS KeywordCOPPER-OXIDE NANOPARTICLES ; DISSOLVED ORGANIC-MATTER ; BIOLOGICAL NUTRIENT REMOVAL ; ACTIVATED-SLUDGE ; SILVER NANOPARTICLES ; ENHANCED ADSORPTION ; AQUEOUS-SOLUTION ; WASTE-WATER ; LEMNA-GIBBA ; FRESH-WATER
WOS IDWOS:000407335700010
Funding OrganizationNational Natural Science Foundation of China(21677138) ; National Natural Science Foundation of China(21677138) ; Key Special Program on the S&T for the Pollution Control and Treatment of Water Bodies(2012ZX07103-001) ; Key Special Program on the S&T for the Pollution Control and Treatment of Water Bodies(2012ZX07103-001) ; National Natural Science Foundation of China(21677138) ; National Natural Science Foundation of China(21677138) ; Key Special Program on the S&T for the Pollution Control and Treatment of Water Bodies(2012ZX07103-001) ; Key Special Program on the S&T for the Pollution Control and Treatment of Water Bodies(2012ZX07103-001)
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/33045
Collection水环境工程研究中心
Affiliation1.Univ Sci & Technol China, Dept Chem, CAS Key Lab Urban Pollutant Convers, Hefei 230026, Peoples R China
2.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Hubei, Peoples R China
Recommended Citation
GB/T 7714
Sima, Xiao-Feng,Shen, Xian-Cheng,Fang, Tao,et al. Efficiently reducing the plant growth inhibition of CuO NPs using rice husk-derived biochar: experimental demonstration and mechanism investigation[J]. ENVIRONMENTAL SCIENCE-NANO,2017,4(8):1722-1732.
APA Sima, Xiao-Feng,Shen, Xian-Cheng,Fang, Tao,Yu, Han-Qing,&Jiang, Hong.(2017).Efficiently reducing the plant growth inhibition of CuO NPs using rice husk-derived biochar: experimental demonstration and mechanism investigation.ENVIRONMENTAL SCIENCE-NANO,4(8),1722-1732.
MLA Sima, Xiao-Feng,et al."Efficiently reducing the plant growth inhibition of CuO NPs using rice husk-derived biochar: experimental demonstration and mechanism investigation".ENVIRONMENTAL SCIENCE-NANO 4.8(2017):1722-1732.
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