College of Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing, 102617, PR China; Beijing Academy of Safety Engineering and Technology, 19 Qing-Yuan North Road, Daxing District, Beijing, 102617, China; School of Chemistry and Environment, Beijing University of Aeronautics and Astronautics, Beijing, 100191, China.
College of Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing, 102617, PR China; Beijing Academy of Safety Engineering and Technology, 19 Qing-Yuan North Road, Daxing District, Beijing, 102617, China.
Environ Res. 2022 May 1;207:112650. doi: 10.1016/j.envres.2021.112650. Epub 2022 Jan 1.
Very recently the green synthesis routes of nanomaterials have attracted massive attention as it overcome the sustainability concerns of conventional synthesis approaches. With this heed, in this novel research work we have synthesized the g-CN nanosheets based nanocomposites by utilizing Eriobotrya japonica as mediator and stabilizer agent. Our designed bio-caped and green g-CN nanosheets based nanocomposites have abundant organic functional groups, activated surface and strong adsorption capability which are very favorable for conversion CO into useful products and bisphenol A degradation. Beneficial to further upgrade the performances of g-CN nanosheets, the resulting pristine g-CN nanosheets are coupled with LaFeO nanosheets via SrO bridge. Based on our experimental results such as TEM, XRD, DRS, TPD, TGA, PL, PEC and FS spectra linked with OH amount it is confirmed that the biologically mediated green g-CN nanosheets are eco-friendly, highly efficient and stable. Furthermore, the coupling of LaFeO nanosheets enlarged the surface area, enhanced the charge separation, while the insertion of SrO bridge worked as facilitator for electron transportation and photo-electron modulation. In contrast to pristine green g-CN nanosheets (GCN), the activities of final resulting sample 6LFOS-(4SrO)-GCN are improved by 8.0 times for CO conversion (CH = 4.2, CO = 9.2 μmol g h) and 2.5-fold for bisphenol A degradation (88%) respectively. More specifically, our current research work will open a new gateway to design cost effective, eco-friendly and biological inspired green nanomaterials for CO conversion and organic pollutants degradation which will further support the net zero carbon emission manifesto and the optimization of carbon neutrality level.
最近，纳米材料的绿色合成路线引起了广泛关注，因为它克服了传统合成方法的可持续性问题。在这项新的研究工作中，我们利用枇杷作为介导体和稳定剂合成了基于 g-CN 纳米片的纳米复合材料。我们设计的生物包覆和绿色 g-CN 纳米片基纳米复合材料具有丰富的有机官能团、活化表面和强吸附能力，非常有利于将 CO 转化为有用的产品和双酚 A 降解。为了进一步提高 g-CN 纳米片的性能，将原始的 g-CN 纳米片通过 SrO 桥与 LaFeO 纳米片耦合。基于 TEM、XRD、DRS、TPD、TGA、PL、PEC 和 FS 谱与 OH 量的实验结果，证实了生物介导的绿色 g-CN 纳米片是环保、高效和稳定的。此外，LaFeO 纳米片的耦合增大了表面积，增强了电荷分离，而 SrO 桥的插入作为电子传输和光电子调制的促进剂。与原始的绿色 g-CN 纳米片（GCN）相比，最终样品 6LFOS-(4SrO)-GCN 的活性分别提高了 8.0 倍（CH=4.2，CO=9.2 μmol g h）用于 CO 转化和 2.5 倍（88%）用于双酚 A 降解。更具体地说，我们目前的研究工作将为设计具有成本效益、环保和生物启发的绿色纳米材料开辟新的途径，用于 CO 转化和有机污染物降解，这将进一步支持净零碳排放宣言和优化碳中性水平。
