All Outputs (60)

Humidity-tolerant ammonia gas sensors based on PrOx/In2O3/WO3 heterostructure films (2025)
Journal Article
Gao, W., Chang, X., Ola, O., Wang, Z., Liao, Q., Zhu, X., Li, J., Jiang, Y., Wang, D., & Sun, S. (2025). Humidity-tolerant ammonia gas sensors based on PrOx/In2O3/WO3 heterostructure films. Chemical Engineering Journal, 509, Article 161482. https://doi.org/10.1016/j.cej.2025.161482

Achieving selective detection of ammonia in humid environments, such as ports and terminals, is crucial for monitoring marine ammonia fuel leakage to safeguard personal safety. Herein, we demonstrate the PrOx/In2O3/WO3 (PIW) heterostructure films for... Read More about Humidity-tolerant ammonia gas sensors based on PrOx/In2O3/WO3 heterostructure films.

Highly sensitive and selective detection of ppb-level acetone sensor using WO3/Au/SnO2 ternary composite gas sensor (2025)
Journal Article
Zhu, X., Ola, O., Li, C., Gao, W., Wang, Z., Dai, C., Jiang, Y., Sun, S., & Chang, X. (2025). Highly sensitive and selective detection of ppb-level acetone sensor using WO3/Au/SnO2 ternary composite gas sensor. Ceramics International, https://doi.org/10.1016/j.ceramint.2025.02.173

Developing acetone sensors with high sensitivity and selectivity at ppb level is critical for medical diagnostics and environmental monitoring while facing serious challenges. In this work, we presented a ppb-level acetone sensor based on a WO3/Au/Sn... Read More about Highly sensitive and selective detection of ppb-level acetone sensor using WO3/Au/SnO2 ternary composite gas sensor.

Polarity-Switching Self-Calibrated Mip-Pec Sensor Based on Core-Shell S-Tio2/Cds/Pcn-224 for Accurate Detection of Tetracycline (2025)
Preprint / Working Paper
Niu, Q., Zhang, M., Ji, G., Wang, T., Wang, J., Duan, H., Ola, O., Dong, X., & Liu, Q. (2025). Polarity-Switching Self-Calibrated Mip-Pec Sensor Based on Core-Shell S-Tio2/Cds/Pcn-224 for Accurate Detection of Tetracycline

Polarity switching photoelectrochemical (PEC) sensing can effectively solve the problem of false positive or negative results caused by PEC single signal on or signal off. In this paper, a novel core-shell ternary composite material of S-TiO2/CDs/PCN... Read More about Polarity-Switching Self-Calibrated Mip-Pec Sensor Based on Core-Shell S-Tio2/Cds/Pcn-224 for Accurate Detection of Tetracycline.

Advances in human papillomavirus detection for cervical cancer screening and diagnosis: challenges of conventional methods and opportunities for emergent tools (2024)
Journal Article
Fashedemi, O. O., Ozoemena, O. C., Peteni, S., Haruna, A. B., Shai, L. J. J., Chen, A., Rawson, F. J., Cruickshank, M. E., Grant, D. M., Ola, O., & Ozoemena, K. I. (2024). Advances in human papillomavirus detection for cervical cancer screening and diagnosis: challenges of conventional methods and opportunities for emergent tools. Analytical Methods, 17(7), 1428-1450. https://doi.org/10.1039/d4ay01921k

Human papillomavirus (HPV) infection is the main cause of cervical cancer and other cancers such as anogenital and oropharyngeal cancers. The prevention screening and treatment of cervical cancer has remained one of the top priorities of the World He... Read More about Advances in human papillomavirus detection for cervical cancer screening and diagnosis: challenges of conventional methods and opportunities for emergent tools.

Anchor carbon dots inside NH2-MIL-88B via ship-in-a-bottle strategy for dual signal enhancement in colorimetric-fluorescent sensors (2024)
Journal Article
Lu, Y., Dong, X., Ji, G., Wang, X., Wang, T., Tang, C., Ola, O., Duan, H., Liu, Q., & Niu, Q. (2025). Anchor carbon dots inside NH2-MIL-88B via ship-in-a-bottle strategy for dual signal enhancement in colorimetric-fluorescent sensors. Sensors and Actuators B: Chemical, 424, Article 136877. https://doi.org/10.1016/j.snb.2024.136877

The increase in oxytetracycline (OTC) pollution has become a significant risk to ecological stability and human health because of excessive use. Therefore, developing a precise and reliable sensor for trace OTC detection is critical. In this work, a... Read More about Anchor carbon dots inside NH2-MIL-88B via ship-in-a-bottle strategy for dual signal enhancement in colorimetric-fluorescent sensors.

Anchor Carbon Dots Inside Nh2-Mil-88b Via Ship-in-A-Bottle Strategy for Dual Signal Enhancement in Colourimetric Fluorescent Sensors (2024)
Preprint / Working Paper
Lu, Y., Dong, X., Ji, G., Wang, X., Wang, T., Tang, C., Ola, O., Duan, H., Liu, Q., & Niu, Q. Anchor Carbon Dots Inside Nh2-Mil-88b Via Ship-in-A-Bottle Strategy for Dual Signal Enhancement in Colourimetric Fluorescent Sensors

The increase in oxytetracycline (OTC) pollution has become a significant risk to both ecological stability and human health because of excessive use. Therefore, developing a precise and reliable sensor for detecting trace amounts of OTC is critical.... Read More about Anchor Carbon Dots Inside Nh2-Mil-88b Via Ship-in-A-Bottle Strategy for Dual Signal Enhancement in Colourimetric Fluorescent Sensors.

Highly Sensitive and Selective Detection of Ppb-Level Acetone Sensor Using Wo3/Au/Sno2 Ternary Composite Gas Sensor (2024)
Preprint / Working Paper
Zhu, X., Ola, O., Li, C., Gao, W., Wang, Z., Dai, C., Jiang, Y., Sun, S., & Chang, X. Highly Sensitive and Selective Detection of Ppb-Level Acetone Sensor Using Wo3/Au/Sno2 Ternary Composite Gas Sensor

Developing acetone sensors with high sensitivity and selectivity at ppb level is critical for medical diagnostics and environmental monitoring while facing serious challenges. In this work, we presented a ppb-level acetone sensor based on a WO3/Au/Sn... Read More about Highly Sensitive and Selective Detection of Ppb-Level Acetone Sensor Using Wo3/Au/Sno2 Ternary Composite Gas Sensor.

Hausmannite-Carbon Nanofiber Composite Electrocatalyst for High Areal-Discharge Energy Rechargeable Zinc-Air Battery (2024)
Journal Article
Lebechi, A. K., Gaolatlhe, L., Mofokeng, T. P., Haruna, A. B., Ipadeola, A. K., Mwonga, P. V., Bankole, O. E., Ola, O., & Ozoemena, K. I. (2024). Hausmannite-Carbon Nanofiber Composite Electrocatalyst for High Areal-Discharge Energy Rechargeable Zinc-Air Battery. ACS Omega, 9(37), 39119-39133. https://doi.org/10.1021/acsomega.4c05968

Rechargeable zinc-air batteries (RZABs) have been described as one of the most viable next-generation battery technologies, especially due to their low cost, high capacity, and being environmental-friendly. In this work, hausmannite Mn3O4 nanoparticl... Read More about Hausmannite-Carbon Nanofiber Composite Electrocatalyst for High Areal-Discharge Energy Rechargeable Zinc-Air Battery.

ZrO2-CeO2/WO3 heterostructure films prepared by magnetron sputtering for humidity-tolerant triethylamine sensing (2024)
Journal Article
Gao, W., Chang, X., Ola, O., Han, J., Dai, C., Li, C., Zhu, X., Li, J., Jiang, Y., Wang, D., & Sun, S. (2024). ZrO2-CeO2/WO3 heterostructure films prepared by magnetron sputtering for humidity-tolerant triethylamine sensing. Sensors and Actuators B: Chemical, 418, Article 136334. https://doi.org/10.1016/j.snb.2024.136334

Up to now, the development of gas sensors based on metal oxide semiconductors (MOSs) that can detect triethylamine (TEA) under high humidity conditions remains a significant challenge. In this study, we present the ZrO2-CeO2/WO3 (ZCW) heterostructure... Read More about ZrO2-CeO2/WO3 heterostructure films prepared by magnetron sputtering for humidity-tolerant triethylamine sensing.

ZIF-67 grown onto three-dimensional biomass cotton fibers for efficient adsorption of tetracycline (2024)
Journal Article
Tang, C., Ji, G., Lu, Y., Ola, O., & Niu, Q. (2024). ZIF-67 grown onto three-dimensional biomass cotton fibers for efficient adsorption of tetracycline. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 700, Article 134722. https://doi.org/10.1016/j.colsurfa.2024.134722

In recent years, Metal-Organic Frameworks (MOFs) have garnered significant attention for their potential in tetracycline (TC) removal. However, pure MOFs typically exist in powdered form and tend to aggregate in water, which greatly limits practical... Read More about ZIF-67 grown onto three-dimensional biomass cotton fibers for efficient adsorption of tetracycline.

Recent Progress in Multifunctional Graphene-Based Nanocomposites for Photocatalysis and Electrocatalysis Application (2023)
Journal Article
Yang, Z., Zhou, S., Feng, X., Wang, N., Ola, O., & Zhu, Y. (2023). Recent Progress in Multifunctional Graphene-Based Nanocomposites for Photocatalysis and Electrocatalysis Application. Nanomaterials, 13(13), Article 2028. https://doi.org/10.3390/nano13132028

The global energy shortage and environmental degradation are two major issues of concern in today’s society. The production of renewable energy and the treatment of pollutants are currently the mainstream research directions in the field of photocata... Read More about Recent Progress in Multifunctional Graphene-Based Nanocomposites for Photocatalysis and Electrocatalysis Application.

Electrochemical Immunosensor for Ultra-Low Detection of Human Papillomavirus Biomarker for Cervical Cancer (2023)
Journal Article
Peteni, S., Ozoemena, O. C., Khawula, T., Haruna, A. B., Rawson, F. J., Shai, L. J., Ola, O., & Ozoemena, K. I. (2023). Electrochemical Immunosensor for Ultra-Low Detection of Human Papillomavirus Biomarker for Cervical Cancer. ACS Sensors, 8(7), 2761-2770. https://doi.org/10.1021/acssensors.3c00677

Human papillomavirus (HPV) is the causative agent for cervical cancer. Of the various types of HPV, the high-risk HPV-16 type is the most important antigenic high-risk HPV. In this work, the antigenic HPV-16 L1 peptide was immobilized on a glassy car... Read More about Electrochemical Immunosensor for Ultra-Low Detection of Human Papillomavirus Biomarker for Cervical Cancer.

SiC@FeZnZiF as a Bifunctional Catalyst with Catalytic Activating PMS and Photoreducing Carbon Dioxide (2023)
Journal Article
Zhu, Z., Yang, L., Xiong, Z., Liu, D., Hu, B., Wang, N., Ola, O., & Zhu, Y. (2023). SiC@FeZnZiF as a Bifunctional Catalyst with Catalytic Activating PMS and Photoreducing Carbon Dioxide. Nanomaterials, 13(10), Article 1664. https://doi.org/10.3390/nano13101664

Herein, we encapsulated modified silicon carbide nanoparticles utilizing a metal–organic backbone. E-SiC-FeZnZIF composites were successfully prepared via Fe doping. The catalysis activity of this bifunctional composite material was evaluated by the... Read More about SiC@FeZnZiF as a Bifunctional Catalyst with Catalytic Activating PMS and Photoreducing Carbon Dioxide.

Interfacial construction of P25/Bi2WO6 composites for selective CO2 photoreduction to CO in gas–solid reactions (2023)
Journal Article
Liu, D., Zeng, M., Li, Z., Zhu, Z., Chen, Y., Thummavichai, K., Ola, O., Wang, N., & Zhu, Y. (2023). Interfacial construction of P25/Bi2WO6 composites for selective CO2 photoreduction to CO in gas–solid reactions. RSC Advances, 13(13), 8564-8576. https://doi.org/10.1039/d3ra00418j

Photocatalysis provides an attractive approach to convert CO2 into valuable fuels, which relies on a well-designed photocatalyst with good selectivity and high CO2 reduction ability. Herein, a series of P25/Bi2WO6 nanocomposites were synthesized by a... Read More about Interfacial construction of P25/Bi2WO6 composites for selective CO2 photoreduction to CO in gas–solid reactions.

Selective laser sintering of functionalized carbon nanotubes and inorganic fullerene-like tungsten disulfide reinforced polyamide 12 nanocomposites with excellent fire safety and mechanical properties (2023)
Journal Article
Chen, D., Qin, X., Cao, X., Wei, F., Thummavichai, K., Ola, O., Wang, N., Jiang, M., & Zhu, Y. (2023). Selective laser sintering of functionalized carbon nanotubes and inorganic fullerene-like tungsten disulfide reinforced polyamide 12 nanocomposites with excellent fire safety and mechanical properties. Journal of Cleaner Production, 401, Article 136630. https://doi.org/10.1016/j.jclepro.2023.136630

More effective and safe fire prevention solutions for polymer derivatives are necessary to address rising environmental and health concerns. In this study, the novel and simple chemically modified multi-walled carbon nanotubes (H-CNT) and PEGylated i... Read More about Selective laser sintering of functionalized carbon nanotubes and inorganic fullerene-like tungsten disulfide reinforced polyamide 12 nanocomposites with excellent fire safety and mechanical properties.

Synthesis, Properties and Characterization of Metal Nanoparticles (2023)
Book Chapter
Thummavichai, K., Chen, Y., Wang, N. N., Zhu, Y. Q., & Ola, O. (2023). Synthesis, Properties and Characterization of Metal Nanoparticles. In S. K. Tiwari, V. Kumar, & S. Thomas (Eds.), Nanoparticles Reinforced Metal Nanocomposites: Mechanical Performance and Durability (161-207). Springer. https://doi.org/10.1007/978-981-19-9729-7_6

Precious metals including Au, Pd, Pt, Ag and Pd and other metals such as Fe, Co, Mg and Ni as solid powder, dispersion in solution and deposition as thin films have attained wide interest in the last decades. They have induced intense research intere... Read More about Synthesis, Properties and Characterization of Metal Nanoparticles.

Recent enterprises in high-rate monolithic photo-electrochemical energy harvest and storage devices (2023)
Journal Article
Turner, D., Li, M., Grant, D., & Ola, O. (2023). Recent enterprises in high-rate monolithic photo-electrochemical energy harvest and storage devices. Current Opinion in Electrochemistry, 38, Article 101243. https://doi.org/10.1016/j.coelec.2023.101243

Solar energy is set to play a major role in decarbonising the economy and creating a zero-emissions future. However, there is a need to store this abundant energy and, in many instances, supply that energy at a high rate. With large expense and effic... Read More about Recent enterprises in high-rate monolithic photo-electrochemical energy harvest and storage devices.

Multifunctional ultralight, recoverable, piezoresistive, and super thermal insulating SiC nanowire sponges (2022)
Journal Article
Chen, Y., Han, L., Ola, O., Liu, G., Wang, N., Saadi, Z., Neves, A. I. S., Tabari, R. S., Thummavichai, K., Khalil, A. M. E., Xia, Y., Sun, S., & Zhu, Y. (2023). Multifunctional ultralight, recoverable, piezoresistive, and super thermal insulating SiC nanowire sponges. Journal of the American Ceramic Society, 106(2), 1299-1308. https://doi.org/10.1111/jace.18823

Ultralight three-dimensional (3D) architectured silicon carbide (SiC) nanowire sponges with integrated properties of recoverable compressibility, outstanding high-temperature thermal and chemical stability, and fire-retardance have been actively purs... Read More about Multifunctional ultralight, recoverable, piezoresistive, and super thermal insulating SiC nanowire sponges.

Co-ZIF reinforced cow manure biochar (CMB) as an effective peroxymonosulfate activator for degradation of carbamazepine (2022)
Journal Article
Lei, Y., Guo, X., Jiang, M., Sun, W., He, H., Chen, Y., Thummavichai, K., Ola, O., Zhu, Y., & Wang, N. (2022). Co-ZIF reinforced cow manure biochar (CMB) as an effective peroxymonosulfate activator for degradation of carbamazepine. Applied Catalysis B: Environmental, 319, Article 121932. https://doi.org/10.1016/j.apcatb.2022.121932

Excessive emissions of cow manure have put tremendous pressure on environment, the difficulties in disposal methods have presented serious challenges to the livestock industry. Herein, cow manure biochar (CMB) loaded metal-organic framework (ZIF-67)... Read More about Co-ZIF reinforced cow manure biochar (CMB) as an effective peroxymonosulfate activator for degradation of carbamazepine.

Mechanical and thermal degradation behavior of inorganic fullerene-liked tungsten disulfide reinforced perfluoroalkoxy/poly(ether-ether-ketone) nanocomposites (2022)
Journal Article
Chen, D., Cao, X., Tiwari, S. K., Ola, O., Wang, N., & Zhu, Y. (2022). Mechanical and thermal degradation behavior of inorganic fullerene-liked tungsten disulfide reinforced perfluoroalkoxy/poly(ether-ether-ketone) nanocomposites. Polymer Degradation and Stability, 203, Article 110041. https://doi.org/10.1016/j.polymdegradstab.2022.110041

Enhancing the mechanical, thermal properties and obtaining the thermal degradation mechanism of polymers is crucial for designing advanced polymer composites. Here, an inorganic fullerene-like tungsten disulfide nanoparticle reinforced perfluoroalkox... Read More about Mechanical and thermal degradation behavior of inorganic fullerene-liked tungsten disulfide reinforced perfluoroalkoxy/poly(ether-ether-ketone) nanocomposites.