Smart and advanced nanocomposites of rGO-based Ni-doped Co3O4/TiO2 for next-level photocatalysis and gas sensing application

被引：6
作者：
Sonpir, Ramprasad [1 ]
Dake, Dnyaneshwar [1 ]
Raskar, Nita [1 ]
Mane, Vijay [1 ]
Dole, Babasaheb [1 ]
机构：
[1] Advanced Materials Research Laboratory, Department of Physics, Dr. Babasaheb Ambedkar, Marathwada University, M.S, Chhatrapati Sambhajinagar
来源：
Environmental Science and Pollution Research | 2025年 / 32卷 / 03期
关键词：
Gas sensing; Hydrothermal; Nanocomposite; Photocatalytic; Scavenger agent;
D O I：
10.1007/s11356-024-35819-w
中图分类号：
学科分类号：
摘要：
The rGO-based 5% Ni-doped Co3O4/TiO2 (GNCT) p-n heterojunction nanocomposite was synthesized using hydrothermal method. The resulting nanocomposite’s morphology, structure, surface area, elemental composition, electrical and optical properties were thoroughly examined using a variety of techniques. The GNCT nanomaterial achieved an impressive 99.11% degradation within 40 min, while GPCT closely followed with a 96.6% efficiency. Its smart nanomaterial also excels as a n-butanol sensor, with GNCT showing a sensitivity of 91.51%, and GPCT registering 86.51%. This dual-functionality highlights its potential as an advanced material for environmental and sensing applications. Additionally, GNCT exhibited excellent stability across multiple cycles, underscoring its potential for gas sensing and environmental applications. The remarkable performance of GNCT is a result of the synergistic effects of its morphology (nanosheet), surface area (540.215 m2/g), band gap (1.93 eV), and photosensitivity (36.92%), which collectively make it an ideal candidate for the photocatalytic and gas sensing applications. © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2024.
引用
收藏
页码：1308 / 1330
页数：22
相关论文
共 123 条
[91]  
Sonpir R.B., Dake D.V., Raskar N.D., Mane V.A., Asokan K., Dole B.N., Photocatalytic efficiency of GO-based Ti-doped Co3O4 nanosheets for mixed dyes and the effects of oxidizing and reducing reagents, Ceram Int, 50, pp. 28746-28761, (2024)
[92]  
Sonpir R.B., Dake D.V., Raskar N.D., Mane V.A., Shinde S.S., Ingole S.S., Tak M.S., Dole B.N., Effect of enhancement in surface area of Sn-doped cobalt oxide nanoflakes for supercapacitor application, Physica Status Solidi (a), (2024)
[93]  
Sun L., Jiang Z., Yuan B., Zhi S., Zhang Y., Li J., Wu A., Ultralight and superhydrophobic perfluorooctyltrimethoxysilane modified biomass carbonaceous aerogel for oil-spill remediation, Chem Eng Res des, 174, pp. 71-78, (2021)
[94]  
Sundararajan M., Kennedy L.J., Photocatalytic removal of rhodamine B under irradiation of visible light using Co1−xCuxFe2O4 (0≤x≤0.5) nanoparticles, J Environ Chem Eng, 5, pp. 4075-4092, (2017)
[95]  
Tariq N., Fatima R., Zulfiqar S., Rahman A., Warsi M.F., Shakir I., Synthesis and characterization of MoO3/CoFe2O4 nanocomposite for photocatalytic applications, Ceram Int, 46, pp. 21596-21603, (2020)
[96]  
Tian M., Miao J., Cheng P., Mu H., Tu J., Sun J., Layer-by-layer nanocomposites consisting of Co3O4 and reduced graphene (rGO) nanosheets for high selectivity ethanol gas sensors, Appl Surf Sci, 479, pp. 601-607, (2019)
[97]  
Toro R.G., Diab M., de Caro T., Al-Shemy M., Adel A., Caschera D., Study of the effect of titanium dioxide hydrosol on the photocatalytic and mechanical properties of paper sheets, Materials, 13, (2020)
[98]  
Wang G., Feng W., On-chip Mach-Zehnder interferometer sensor with a double-slot hybrid plasmonic waveguide for high-sensitivity hydrogen detection, Optics Express, 31, (2023)
[99]  
Wang M., Shen Z., Zhao X., Duanmu F., Yu H., Ji H., Rational shape control of porous Co3O4 assemblies derived from MOF and their structural effects on n-butanol sensing, J Hazard Mater, 371, pp. 352-361, (2019)
[100]  
Wang H., Chen M., Rong Q., Zhang Y., Hu J., Zhang D., Zhou S., Zhao X., Zhang J., Zhu Z., Liu Q., Ultrasensitive xylene gas sensor based on flower-like SnO2/Co3O4 nanorods composites prepared by facile two-step synthesis method, Nanotechnology, 31, (2020)
45678910111213