<scp><i>Eriobotrya japonica</i></scp> assisted green synthesis of <scp>g‐C<sub>3</sub>N<sub>4</sub></scp> nanocomposites and its exceptional photoactivities for doxycycline and rhodamine B degradation with mechanism insight
Shoaib Khan, Chunpeng Wan, Jinyin Chen, Iltaf Khan, Mingsheng Luo, Chunjuan Wang
Abstract
Abstract In this novel research work, for the first time, green g‐C 3 N 4 nanocomposites have been synthesized by utilizing Eriobotrya japonica as a stabilizer and mediator. Based on DRS absorbance spectra, TGA, fluorescence spectra related to •OH amount, photoelectrochemical curves, TPD, and BET results, it has been confirmed the Eriobotrya japonica mediated green g‐C 3 N 4 (G‐CNS) nanosheets are efficient, stable, and more than 2.4 times enhancement in activities as compared with conventional chemically synthesized g‐C 3 N 4 nanosheets. In order to further improve the performance, the as‐synthesized green g‐C 3 N 4 was modified with SnO 2 nanosheets. Our results confirmed that coupling of SnO 2 nanosheets prolonged the lifetime of charge carriers and provided catalytic function. Compared with pristine G‐CNS, the photocatalytic activity of the resulting 5SO/G‐CNS improved by 2.3 and 2.6 times, for doxycycline and rhodamine B degradation, respectively. In addition, the possible photodegradation pathway for doxycycline and RhB mineralization is proposed. Finally, this novel work will provide a new platform for the efficient green synthesis of g‐C 3 N 4 based nanocomposite and its utilization for environmental remediation.