Optical band gap tuning by changing the concentration of reduced graphene oxide in NiO/rGO nanocomposite

1. S. Khan, A. Hussain, K. He, B. Liu, Z. Imran, J. Ambreen, S. Hassan, M. Ahmad, S.S. Batool, C. Li, Tailoring the bandgap of Mn3O4 for visible light driven photocatalysis. J. Environ. Manage. 293, 112854 (2021). https://doi.org/10.1016/j.jenvman.2021.11285410.1016/j.jenvman.2021.112854 ↗

2. A. Wu, J. Li, B. Liu, W. Yang, Y. Jiang, L. Liu, X. Zhang, C. Xiong, X. Jiang, Band-gap tailoring and visible-light-driven photocatalytic performance of porous (GaN)1–x(ZnO)x solid solution. Dalton Trans. (2017). https://doi.org/10.1039/c6dt04428j10.1039/c6dt04428j ↗

3. V.A. Online, Y. Zhu, T. Lin, W. Yang, J. Wen, G. Zhao, RSC Adv. (2015). https://doi.org/10.1039/C5RA14790E10.1039/C5RA14790E ↗

4. R. Malik, V.K. Tomer, Y.K. Mishra, L. Lin, Functional gas sensing nanomaterials: a panoramic view. Appl. Phys. Rev. (2020). https://doi.org/10.1063/1.512347910.1063/1.5123479 ↗

5. Z. Saki, K. Sveinbjörnsson, G. Boschloo, N. Taghavinia, The effect of lithium doping in solution-processed nickel oxide films for perovskite solar cells. ChemPhysChem 20, 3322–3327 (2019). https://doi.org/10.1002/cphc.20190085610.1002/cphc.201900856 ↗

6. Y.Y. Xi, Y.F. Hsu, A.B. Djurišić, A.M.C. Ng, W.K. Chan, H.L. Tam, K.W. Cheah, Niozno light emitting diodes by solution-based growth. Appl. Phys. Lett. (2008). https://doi.org/10.1063/1.289850510.1063/1.2898505 ↗

7. S.G. Danjumma, Nickel oxide (NiO) devices and applications: a review. Int. J. Eng. Res 8, 461 (2019). https://doi.org/10.17577/ijertv8is04028110.17577/ijertv8is040281 ↗

8. V.A. Online, Tuning the optical band gap and electrical properties of NiO thin films by nitrogen doping : a joint experimental and theoretical study. RSC Adv. (2022). https://doi.org/10.1039/d2ra01887j10.1039/d2ra01887j ↗

9. A. Al-Nafiey, A. Kumar, M. Kumar, A. Addad, B. Sieber, S. Szunerits, R. Boukherroub, S.L. Jain, Nickel oxide nanoparticles grafted on reduced graphene oxide (rGO/NiO) as efficient photocatalyst for reduction of nitroaromatics under visible light irradiation. J. Photochem. Photobiol. A Chem. 336, 198–207 (2017). https://doi.org/10.1016/j.jphotochem.2016.12.02310.1016/j.jphotochem.2016.12.023 ↗

10. M. Azarang, A. Shuhaimi, R. Yousefi, M. Sookhakian, Effects of graphene oxide concentration on optical properties of ZnO/RGO nanocomposites and their application to photocurrent generation. J. Appl. Phys. (2014). https://doi.org/10.1063/1.489414110.1063/1.4894141 ↗

11. S. Sadhukhan, A. Bhattacharyya, D. Rana, T.K. Ghosh, J.T. Orasugh, S. Khatua, K. Acharya, D. Chattopadhyay, Synthesis of RGO/NiO nanocomposites adopting a green approach and its photocatalytic and antibacterial properties. Mater. Chem. Phys. 247, 122906 (2020). https://doi.org/10.1016/j.matchemphys.2020.12290610.1016/j.matchemphys.2020.122906 ↗

12. K. Rahimi, H. Zafarkish, A. Yazdani, Reduced graphene oxide can activate the sunlight-induced photocatalytic effect of NiO nanowires. Mater. Des. 144, 214–221 (2018). https://doi.org/10.1016/j.matdes.2018.02.03010.1016/j.matdes.2018.02.030 ↗

13. S. Yousaf, S. Zulfiqar, M.N. Shahi, M.F. Warsi, N.F. Al-Khalli, M.F. Aly Aboud, I. Shakir, Tuning the structural, optical and electrical properties of NiO nanoparticles prepared by wet chemical route. Ceram. Int. 46, 3750–3758 (2020). https://doi.org/10.1016/j.ceramint.2019.10.09710.1016/j.ceramint.2019.10.097 ↗

14. M. Zannotti, E. Benazzi, L.A. Stevens, M. Minicucci, L. Bruce, C.E. Snape, E.A. Gibson, R. Giovannetti, Reduced graphene oxide-NiO photocathodes for p-type dye-sensitized solar cells. ACS Appl. Energy Mater. 2, 7345–7353 (2019). https://doi.org/10.1021/acsaem.9b0132310.1021/acsaem.9b01323 ↗

15. P. Ahuja, S.K. Ujjain, I. Arora, M. Samim, Hierarchically grown NiO-decorated polyaniline-reduced graphene oxide composite for ultrafast sunlight-driven photocatalysis. ACS Omega 3, 7846–7855 (2018). https://doi.org/10.1021/acsomega.8b0076510.1021/acsomega.8b00765 ↗

16. N. Murugesan, S. Suresh, M. Kandasamy, S. Murugesan, N. Pugazhenthiran, S.K. Kumar, Enhancing selectivity of solar absorber using reduced graphene oxide modified nickel oxide nanocomposite thin films. Sol. Energy 247, 185–195 (2022). https://doi.org/10.1016/j.solener.2022.10.01610.1016/j.solener.2022.10.016 ↗

17. B. Jin, X. Xu, Y. Zhang, Thermal coal futures trading volume predictions through the neural network. J. Model. Manag. 20, 585–619 (2025). https://doi.org/10.1108/JM2-09-2023-020710.1108/JM2-09-2023-0207 ↗

18. J. Bingzi, X. Xu, Forecasts of thermal coal prices through Gaussian process regressions. Ironmak. Steelmak. 51, 819–834 (2024). https://doi.org/10.1177/0301923324126519410.1177/03019233241265194 ↗

19. E. Glogic, A. A-Más, G. Sonnemann, M.F. Montemor, L. G-Demourgues, S.B. Young, Life cycle assessment of emerging Ni–Co hydroxide charge storage electrodes: impact of graphene oxide and synthesis route. RSC Advances. 33, 18853–18862 (2019). https://doi.org/10.1039/C9RA02720C10.1039/C9RA02720C ↗

20. Q. An, X. Zhao, S. Suo, Y. Bai, Novel lithium-ion capacitor based on a NiO-rGO composite. Materials 14, 3586 (2021). https://doi.org/10.3390/ma1413358610.3390/ma14133586 ↗

21. N. Arshad, M. Usman, M. Adnan, M.T. Ahsan, M.R. Rehman, S. Javed, Z. Ali, M.A. Akram, G.P. Demopoulos, A. Mahmood, Nanoengineering of NiO/MnO2/GO ternary composite for use in high-energy storage asymmetric supercapacitor and oxygen evolution reaction (OER). Nanomaterials 19, 99 (2023). https://doi.org/10.3390/nano1301009910.3390/nano13010099 ↗

22. B. Jin, X. Xu, Forecasts of China Mainland new energy index prices through Gaussian process regressions. J. Clean Energy Energy Storage 1, 2450006 (2024). https://doi.org/10.1142/S2811034X2450006010.1142/S2811034X24500060 ↗

23. R. Bhujel, S. Rai, U. Deka, B.P. Swain, Electrochemical, bonding network and electrical properties of reduced graphene oxide-Fe2O3 nanocomposite for supercapacitor electrodes applications. J. Alloys Compd. 792, 250–259 (2019). https://doi.org/10.1016/j.jallcom.2019.04.00410.1016/j.jallcom.2019.04.004 ↗

24. D. Wang, F. Watanabe, W. Zhao, Reduced graphene oxide-NiO/Ni nanomembranes as oxygen evolution reaction electrocatalysts. ECS J. Solid State Sci. Technol. 6, M3049–M3054 (2017). https://doi.org/10.1149/2.0101706jss10.1149/2.0101706jss ↗

25. G. Thangavel, K. Balakrishnan, N. Murugesan, NiO/MnO2 nanocomposite in addition of layered reduced graphene oxide (RGO) electrode for accountable supercapacitor application. Zast. Mater. 65, 315–330 (2024)

26. R.E. Nugraha, R. Kharismawati, S. Suprapto, A. Aziz, H. Holilah, H. Hartati, D. Prasetyoko, Effect of Ni / Al-MCM-41 impregnation method on catalytic deoxygenation of reutealis trisperma oil. Malaysian J. Catalys. 7, 31–36 (2023)10.11113/mjcat.v7n2.167 ↗

27. H. Bakhsh, J.A. Buledi, N.H. Khand, B. Junejo, A.R. Solangi, A. Mallah, S.T.H. Sherazi, for ultrasensitive determination of endosulfan in vegetables NiO nanostructures based functional none - enzymatic electrochemical sensor for ultrasensitive determination of endosulfan in vegetables. J. Food Meas. Charact. (2021). https://doi.org/10.1007/s11694-021-00860-710.1007/s11694-021-00860-7 ↗

28. R. Verma, M.S. Chauhan, S. Pandey, A. Dandia, Reduced graphene oxide/NiO based nano-composites for the efficient removal of alizarin dye, indigo dye and reduction of nitro aromatic compounds. Heliyon 9, e17162 (2023). https://doi.org/10.1016/j.heliyon.2023.e1716210.1016/j.heliyon.2023.e17162 ↗

29. P. Benjwal, M. Kumar, P. Chamoli, K.K. Kar, Enhanced photocatalytic degradation of methylene blue and adsorption of arsenic(iii) by reduced graphene oxide (rGO)-metal oxide (TiO2/Fe3O4) based nanocomposites. RSC Adv. 5, 73249–73260 (2015). https://doi.org/10.1039/c5ra13689j10.1039/c5ra13689j ↗

30. H. Zhu, X. Zeng, T. Han, X. Li, S. Zhu, B. Sun, P. Zhou, J. Liu, A nickel oxide nanoflakes / reduced graphene oxide composite and its high-performance lithium-storage properties. J. Solid State Electrochem. (2019). https://doi.org/10.1007/s10008-019-04281-x10.1007/s10008-019-04281-x ↗

31. W. Huang, S. Ding, Y. Chen, W. Hao, X. Lai, J. Peng, 3D NiO hollow sphere / reduced graphene oxide composite for high- performance glucose biosensor. Sci. Rep. (2017). https://doi.org/10.1038/s41598-017-05528-110.1038/s41598-017-05528-1 ↗

32. S. Kabashima, Dielectric properties of NiO-interfacial polarisation effect. J. Phys. Soc. Jpn. 26, 975–978 (1969). https://doi.org/10.1143/JPSJ.26.9[32]10.1143/JPSJ.26.9[32] ↗

33. H. Shen, X. Shi, Z. Wang, P. Zou, Z. Hou, C. Xu, L. Zhang, H. Wu, Interfacial polarization-dominated dielectric loss in SnO2@rGO electromagnetic wave absorbers. Metals 12, 2154 (2022). https://doi.org/10.3390/met1212215410.3390/met12122154 ↗

34. S. Yousaf, S. Zulfiqar, M.I. Din, P.O. Agboola, M.F. Aly Aboud, M.F. Warsi, I. Shakir, Solar light irradiated photocatalytic activity of ZnO-NiO/rGO nanocatalyst. J. Mater. Res. Technol. 12, 999–1009 (2021). https://doi.org/10.1016/j.jmrt.2021.03.01210.1016/j.jmrt.2021.03.012 ↗