Simultaneous reduction of arsenic and lead bioaccumulation in rice (Oryza sativa L.) by nano-TiO2: a mechanistic study

Author:

Wu Xinyi12,Jia Wenyi1,Hu Jing1,Yu Xuefeng1,Yan Chuanhao1,White Jason C.3ORCID,Liu Junfeng1,Yang Yu4ORCID,Wang Xilong1ORCID

Affiliation:

1. Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China

2. The Bartlett School of Sustainable Construction, University College London, WC1H 0QB, London, UK

3. The Connecticut Agricultural Experiment Station, New Haven, Connecticut, USA

4. Department of Civil and Environmental Engineering, University of Nevada, Reno, NV 89557, USA

Abstract

Heavy metals with opposite charges generally have opposite environmental behaviors. Nano-TiO2 concurrently reduces arsenic and lead pollution in rice, while rutile nano-TiO2 exhibits better arsenic mitigation ability than its anatase counterpart.

Funder

National Natural Science Foundation of China

Publisher

Royal Society of Chemistry (RSC)

Subject

General Environmental Science,Materials Science (miscellaneous)

Reference56 articles.

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3. Understanding arsenic dynamics in agronomic systems to predict and prevent uptake by crop plants

4. United States Environmental Protection Agency (USEPA) , Regional screening levels for chemical contaminants at superfund sites, https://www.epa.gov/risk/regional-screening-levels-rsls-generic-tables , (accessed November, 2021 )

5. Japan Ministry of the Environment , Environmental quality standards for soil pollution, https://www.env.go.jp/en/water/soil/sp.html (accessed December, 2016 )

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