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

页码：1308 / 1330

页数：22

共 123 条

[1]

Abdallah A.M., Awad R., Study of the structural and physical properties of Co3O4 nanoparticles synthesized by co-precipitation method, J Supercond Novel Magn, 33, pp. 1395-1404, (2020)

[2]

An D., Li Y., Lian X., Zou Y., Deng G., Synthesis of porous ZnO structure for gas sensor and photocatalytic applications, Colloids Surf, A, 447, pp. 81-87, (2014)

[3]

Anucha C.B., Altin I., Bacaksiz E., Stathopoulos V.N., Titanium dioxide (TiO<sub>2</sub>)-based photocatalyst materials activity enhancement for contaminants of emerging concern (CECs) degradation: in the light of modification strategies, Chemical Engineering Journal Advances, 10, (2022)

[4]

Appadurai S.C., Kuppusamy R., Karazhanov S., Subramanian B., Electrochemical performance of nitrogen-doped TiO2 nanotubes as electrode material for supercapacitor and Li-ion battery, Molecules, (2019)

[5]

Aragon F.H., Coaquira J.A.H., Hidalgo P., da Silva S.W., Brito S.L.M., Gouvea D., Morais P.C., Evidences of the evolution from solid solution to surface segregation in Ni-doped SnO2 nanoparticles using Raman spectroscopy, J Raman Spectrosc, 42, pp. 1081-1086, (2011)

[6]

Azami M., Wei J., Valizadehderakhshan M., Jayapalan A., Ayodele O.O., Nowlin K., Effect of doping heteroatoms on the optical behaviors and radical scavenging properties of carbon nanodots, J Phys Chem C Nanomater Interfaces, 127, pp. 7360-7370, (2023)

[7]

Bharathi P., Harish S., Shimomura M., Ponnusamy S., Krishna Mohan M., Archana J., Navaneethan M., Conductometric NO2 gas sensor based on Co-incorporated MoS2 nanosheets for room temperature applications, Sens Actuators, B Chem, 360, (2022)

[8]

Bhatia S., Verma N., Bedi R.K., Sn-doped ZnO nanopetal networks for efficient photocatalytic degradation of dye and gas sensing applications, Appl Surf Sci, 407, pp. 495-502, (2017)

[9]

Bhowmik B., Bhattacharyya P., Efficient gas sensor devices based on surface engineered oxygen vacancy controlled TiO2 nanosheets, IEEE Trans Electron Devices, 64, pp. 2357-2363, (2017)

[10]

Bo Y., Zhao X., Li L., Cardiotoxic effects of common and emerging drugs: role of cannabinoid receptors, Clin Sci, 138, pp. 413-434, (2024)

← 1 2 3 4 5 6 7 8 9 10 →