Sonpir Ramprasad, Dake Dnyaneshwar, Raskar Nita, Mane Vijay, Dole Babasaheb
Advanced Materials Research Laboratory, Department of Physics, Dr. Babasaheb Ambedkar, Marathwada University, Chhatrapati Sambhajinagar, 431004, M.S, India.
Environ Sci Pollut Res Int. 2025 Jan;32(3):1308-1330. doi: 10.1007/s11356-024-35819-w. Epub 2024 Dec 26.
The rGO-based 5% Ni-doped CoO/TiO (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 m/g), band gap (1.93 eV), and photosensitivity (36.92%), which collectively make it an ideal candidate for the photocatalytic and gas sensing applications.
采用水热法合成了基于还原氧化石墨烯的5%镍掺杂氧化钴/二氧化钛（GNCT）p-n异质结纳米复合材料。使用多种技术对所得纳米复合材料的形态、结构、表面积、元素组成、电学和光学性质进行了全面研究。GNCT纳米材料在40分钟内实现了99.11%的降解率，而GPCT紧随其后，降解效率为96.6%。其智能纳米材料作为正丁醇传感器也表现出色，GNCT的灵敏度为91.51%，GPCT为86.51%。这种双重功能突出了其作为环境和传感应用先进材料的潜力。此外，GNCT在多个循环中表现出优异的稳定性，凸显了其在气体传感和环境应用中的潜力。GNCT的卓越性能是其形态（纳米片）、表面积（540.215 m/g）、带隙（1.93 eV）和光敏性（36.92%）协同作用的结果，这些因素共同使其成为光催化和气体传感应用的理想候选材料。
