Impacts of surface chemistry of functional carbon nanodots on the plant growth

被引：34

作者：

Chen, Qiong ^{[1
]}

Chen, Long ^{[1
]}

Nie, Xiangkun ^{[1
]}

Man, Han ^{[1
]}

Guo, Zhijiang ^{[5
]}

Wang, Xiuli ^{[3
,4
]}

Tu, Jiangping ^{[3
,4
]}

Jin, Gong ^{[5
]}

Ci, Lijie ^{[1
,2
]}

机构：

[1] Shandong Univ, Ctr Carbon Nanomat, Key Lab Liquid Solid Struct Evolut & Proc Mat, Minist Educ,Sch Mat Sci & Engn, Jinan 250061, Peoples R China

[2] Harbin Inst Technol, Sch Mat Sci & Engn, Shenzhen 518055, Peoples R China

[3] Zhejiang Univ, State Key Lab Silicon Mat, Hangzhou 310027, Peoples R China

[4] Zhejiang Univ, Sch Mat Sci & Engn, Hangzhou 310027, Peoples R China

[5] Beijing Xinna Int Hitech Mat Co Ltd, Beijing 100076, Peoples R China

来源：

ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY | 2020年 / 206卷

关键词：

Surface chemistry; Functional carbon nanodots; Pyrolysis method; Carboxyl group; Ester group; Arabidopsis thaliana; NANOTUBES; CHARGE;

D O I：

10.1016/j.ecoenv.2020.111220

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Functional carbon nanodots (FCNs) with multiple chemical groups have great impact on the growth regulation of plants. To understand the role of the chemical groups, FCNs were reduced from the raw material by pyrolysis method and hydrolysis method. The chemical structure of these materials were characterized by using TGA, TEM, FT-IR, XPS, Raman and elementary analysis. The raw and reduced FCNs were used as plants growth regulators in culture medium of Arabidopsis thaliana. Our results indicate there is a strong correlation between the physiological responses of plants and the surface chemistries (especially carboxyl group and ester group) of the nanomaterials. The quantum-sized FCNs with multiple carboxyl groups and ester groups show better aqueous dispersity and can induce various positive physiological responses in Arabidopsis thaliana seedlings compared with the FCNs decorated without carboxyl and ester as well as aggregated FCNs. The raw FCNs present higher promotion capacity in plants biomass and mots length, and the quantum-sized FCNs are easier to be absorbed by plants and generate more positive effects on plants.

引用

页数：8

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