Biochar-induced immobilization and transformation of silver-nanoparticles affect growth, intracellular-radicles generation and nutrients assimilation by reducing oxidative stress in maize

Abbas，Qumber1; Yousaf，Balal1; Ullah，Habib2; Ali，Muhammad Ubaid3; Zia-ur-Rehman，Muhammad4; Rizwan，Muhammad5; Rinklebe，Jörg6,7

2020-05-15

10.1016/j.jhazmat.2019.121976

JOURNAL OF HAZARDOUS MATERIALS   影响因子和分区

0304-3894

1873-3336

Silver nanoparticles (AgNPs) are used in a wide range of consumer products inevitably releases in massive quantities in the natural environment, posing a potential thread to ecosystem-safety and plant health. Here, the impact of AgNPs (100−1000 mg L) without and with biochar (@2 % w/v) amendment on maize plants was assessed in hydroponics exposure medium. AgNPs exposure to plants induced dose-dependent phytotoxicity by suppressing plant growth, disturbing photosynthesis and gas exchange traits and alteration in macro- and micronutrients assimilation. At the same time, AgNPs with addition of biochar alleviated the phyto-toxic effects of AgNPs through approximately 4–8 times reduction in uptake and tissue accumulation of Ag. Moreover, activities of antioxidant enzymes in AgNPs + biochar treated plants indicated the lower oxidative stress. Electron paramagnetic resonance (EPR) spectroscopy confirmed that superoxide (O ) radical was the dominant reactive oxygen species. Fourier-transform infrared spectroscopic (FTIR) and X-ray photoelectron spectroscopic (XPS) results revealed that biochar surface carboxyl and sulfur functional groups were involved in complexation process with NPs, which inhibited the oxidative dissolution and release of Ag ions besides of biochar space shield effect. Thus, the interaction of biochar with AgNPs immobilizes these NPs and can effectively reduce their bioavailability in the environmental matrix.

Accumulation AgNPs species transformation Biochar ROS Silver nanoparticles

SCI ; EI

英语

其他

World Academy of Science (TWAS)[2015-179]

Engineering ; Environmental Sciences & Ecology

Engineering, Environmental ; Environmental Sciences

WOS:000524482400031

ELSEVIER

20200107966729

Fourier transform infrared spectroscopy ; Metal nanoparticles ; Nutrients ; Biochemistry ; Hydroponics ; Electron spin resonance spectroscopy ; Gas plants ; Paramagnetic resonance ; X ray photoelectron spectroscopy ; Consumer products

Gas Fuels:522 ; Magnetism: Basic Concepts and Phenomena:701.2 ; Nanotechnology:761 ; Chemistry:801 ; Biochemistry:801.2 ; Agricultural Methods:821.3

ENGINEERING

2-s2.0-85077146324

Scopus

1.CAS-Key Laboratory of Crust-Mantle Materials and the Environments,School of Earth and Space Sciences,University of Science and Technology of China,Hefei,230026,China
2.Department of Environmental Science,Zhejiang University,Hangzhou,310058,China
3.Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control,and State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control,School of Environmental Science and Engineering,Southern University of Science and Technology,Shenzhen,China
4.Institute of Soil and Environmental Sciences,University of Agriculture,Faisalabad,38040,Pakistan
5.Department of Environmental Sciences and Engineering,Government College University,Faisalabad,Allama Iqbal Road,38000,Pakistan
6.University of Wuppertal,School of Architecture and Civil Engineering,Institute of Foundation Engineering,Water- and Waste-Management,Soil- and Groundwater-Management,Wuppertal,Pauluskirchstraße 7,42285,Germany
7.Department of Environment,Energy and Geoinformatics,Sejong University,Seoul,98 Gunja-Dong,South Korea

Abbas，Qumber,Yousaf，Balal,Ullah，Habib,et al. Biochar-induced immobilization and transformation of silver-nanoparticles affect growth, intracellular-radicles generation and nutrients assimilation by reducing oxidative stress in maize[J]. JOURNAL OF HAZARDOUS MATERIALS,2020,390.

Abbas，Qumber.,Yousaf，Balal.,Ullah，Habib.,Ali，Muhammad Ubaid.,Zia-ur-Rehman，Muhammad.,...&Rinklebe，Jörg.(2020).Biochar-induced immobilization and transformation of silver-nanoparticles affect growth, intracellular-radicles generation and nutrients assimilation by reducing oxidative stress in maize.JOURNAL OF HAZARDOUS MATERIALS,390.

Abbas，Qumber,et al."Biochar-induced immobilization and transformation of silver-nanoparticles affect growth, intracellular-radicles generation and nutrients assimilation by reducing oxidative stress in maize".JOURNAL OF HAZARDOUS MATERIALS 390(2020).