Green synthesis of SrO bridged LaFeO3/g-C3N4 nanocomposites for CO2 conversion and bisphenol A degradation with new insights into mechanism

Iltaf Khan; Mingsheng Luo; Sohail Khan; Humaira Asghar; Muhammad Saeed; Shoaib Khan; Aftab Khan; Muhammad Humayun; Lin Guo; Buchang Shi

doi:10.1016/j.envres.2021.112650

Green synthesis of SrO bridged LaFeO₃/g-C₃N₄ nanocomposites for CO₂ conversion and bisphenol A degradation with new insights into mechanism

Environ Res. 2022 May 1:207:112650. doi: 10.1016/j.envres.2021.112650. Epub 2022 Jan 1.

Authors

Iltaf Khan¹, Mingsheng Luo², Sohail Khan³, Humaira Asghar⁴, Muhammad Saeed⁴, Shoaib Khan⁵, Aftab Khan⁶, Muhammad Humayun⁷, Lin Guo⁸, Buchang Shi⁹

Affiliations

¹ 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. Electronic address: doctoriltafkhan@bipt.edu.cn.
² 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. Electronic address: luoms9297@163.com.
³ Department of Pharmacy, University of Swabi, Khyber Pakhtunkhwa, 94640, Pakistan.
⁴ Department of Chemistry, Government College University Faisalabad, Faisalabad, 38000, Pakistan.
⁵ Jiangxi Key Laboratory for Postharvest Technology and Nondestructive Testing of Fruits and Vegetables, College of Agronomy, Jiangxi Agricultural University, Nanchang, 330045, China.
⁶ College of Agriculture, Key Laboratory of Oasis Agricultural Pest Management and Plant Protection Resources Utilization, Shihezi University, Shihezi, Xinjiang, 832003, China.
⁷ School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, 430074, China.
⁸ School of Chemistry and Environment, Beijing University of Aeronautics and Astronautics, Beijing, 100191, China.
⁹ Department of Chemistry, Eastern Kentucky University, Richmond, KY, 40475, USA.

PMID: 34979124
DOI: 10.1016/j.envres.2021.112650

Abstract

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-C₃N₄ nanosheets based nanocomposites by utilizing Eriobotrya japonica as mediator and stabilizer agent. Our designed bio-caped and green g-C₃N₄ nanosheets based nanocomposites have abundant organic functional groups, activated surface and strong adsorption capability which are very favorable for conversion CO₂ into useful products and bisphenol A degradation. Beneficial to further upgrade the performances of g-C₃N₄ nanosheets, the resulting pristine g-C₃N₄ nanosheets are coupled with LaFeO₃ 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-C₃N₄ nanosheets are eco-friendly, highly efficient and stable. Furthermore, the coupling of LaFeO₃ 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-C₃N₄ nanosheets (GCN), the activities of final resulting sample 6LFOS-(4SrO)-GCN are improved by 8.0 times for CO₂ conversion (CH₄ = 4.2, CO = 9.2 μmol g^-1 h^-1) 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 CO₂ conversion and organic pollutants degradation which will further support the net zero carbon emission manifesto and the optimization of carbon neutrality level.

Keywords: Bisphenol A degradation; CO(2) conversion; Carbon neutrality; Green nanomaterials; Zero carbon emission.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Benzhydryl Compounds
Carbon Dioxide*
Catalysis
Nanocomposites*
Phenols

Substances

Benzhydryl Compounds
Phenols
Carbon Dioxide
bisphenol A