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- Title
Graphitic carbon nitride (g-C3N4) alleviates cadmium-induced phytotoxicity to rice (Oryza sativa L.).
- Authors
Hao, Yi; Lv, Ruitao; Ma, Chuanxin; Adeel, Muhammad; Zhao, Ziqian; Rao, Yuhang; Rui, Yukui
- Abstract
In the present study, graphitic carbon nitride (g-C3N4) was synthesized in a tube furnace and characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), and Fourier transform infrared (FTIR). Different concentrations (0–200 mg/L) of g-C3N4 were prepared in nutrient solution amended with or without 20 mg/L CdCl2 for the greenhouse study. Rice seedlings were exposed to g-C3N4 and Cd for 20 days. Our results suggest that 200 mg/L g-C3N4 significantly increased the fresh weight and root and shoot length as compared with the control, and notably alleviated Cd-induced toxicity. The addition of 200 mg/L g-C3N4 significantly reduced the root and shoot Cd content by approximately 14% and 23%, respectively. In addition, 200 mg/L g-C3N4 significantly elevated the nitrogen content and decreased C/N ration in rice shoots; most importantly, it alleviated Cd-induced nitrogen reduction. Our findings demonstrated the potential of g-C3N4 in regulating plant growth and minimizing the Cd-induced phytotoxicity, and shed light on providing a new strategy to maintain heavy metal contamination in agriculture using a low-cost and environmental friendly NMs.
- Subjects
PHYTOTOXICITY; NITRIDES; RICE; SCANNING electron microscopy; HEAVY metals; FOURIER transforms; PLANT growth
- Publication
Environmental Science & Pollution Research, 2021, Vol 28, Issue 17, p21276
- ISSN
0944-1344
- Publication type
Article
- DOI
10.1007/s11356-020-12027-w