1. General information:
- Project Title: Research on the fabrication of nanofluid containing carbon nanomaterials/metal nanoparticles (AgNPs, AuNPs, CuNPs) using directed liquid plasma for application in heat transfer devices.
- Code: B2024-TNA-26
- Project Leader: Assoc. Prof. Dr. Nguyen Van Hao
- Organizing body: University of Science - Thai Nguyen University - Implementation period: January 2024 - December 2025
2. Objectives:
- Successful fabrication and study of the thermal properties of nanofluid containing carbon nanomaterials/metal nanoparticles (Ag, Au, Cu).
- Successfully developed a theoretical computational model capable of accurately predicting the thermal conductivity of nanofluids containing carbon nanomaterials/metal nanoparticles (Ag, Au, Cu).
3. Creativeness and innovativeness:
- Successfully fabricated nanofluids containing carbon nanoparticles (graphene oxide) and metal nanoparticles (Ag, Cu) using plasma and green synthesis methods.
- Successfully developed a theoretical computational model and accurately predicted the thermal conductivity of nanofluid containing fabricated composite materials.
- Successfully fabricated carbon (glucose) coated silver nanoparticles to enhance catalytic properties and act as sensors for detecting organic dyes.
4. Research results:
- Successful fabrication of GO-Ag composite nanomaterials using solution plasma technology with extracts from Xao Tam Phan (a type of medicinal plant).
- Successful fabrication of GO-Cu composite nanomaterials using a green method with extracts from Xao Tam Phan (a type of medicinal plant).
- Successful fabrication of Ag nanomaterials using microplasma methods with glucose solution as a surface stabilizer for sensing and catalytic applications.
- Successful fabrication of GO-CNT-Fe3O4 composite nanomaterial for application in the treatment of organic dyes.
- Successfully fabricated nanofluid containing GO-Ag and GO-Cu composite materials with high thermal conductivity and high photothermal energy conversion efficiency.
- Successful fabrication of nanofluid containing GO-CNT-Ag composite material for enhanced thermal conductivity.
- A theoretical computational model has been developed, and the thermal conductivity of the fabricated nanofluid containing composite materials has been accurately predicted.
5. Products:
5.1. Scientific Products:
Published 2 articles in ISI-Q1 journals; 2 articles in domestic journals; 2 presentations at international/national conferences.
[1]. Nguyen Van Hao, Nguyen Thi Ngoc Mai, Mone Phommahaxay, Vu Xuan Hoa, Pham The Tan, Do Tuan, Pham Van Nhat, Bui Hung Thang, Phan Ngoc Minh, Pham Van Trinh. Photothermal properties of nanofluid containing graphene oxide - copper nanoparticle hybrid materials prepared by using Paramignya trimera extract. RSC Adv., 2026, 16, Accepted January 12, 2026 (SCIE- Q1, IF = 4.6)
[2]. Pham The Tan, Truong Quang Giang, Tran Thu Trang, Vu Xuan Hoa, Luu Tuan Duong, Ngo Thi Lan, Nguyen Thi Luyen and Nguyen Van Hao. Microplasma-assisted green synthesis of glucose-stabilized silver nanoparticles: a dual-functional platform for SERS detection and synergistic reduction of binary dyes. RSC Adv., 2026, 16, 3296 (SCIE- Q1, IF = 4.6)
[3]. Pham The Tan, Truong Quang Giang, Le Phuong Thao, Nguyen Van Hao*, Synthesis and investigation of the rhodamine b dye adsorption performance of GO-CNTs- Fe3O4 composite material for polluted water treatment. TNU Journal of Science and Technology 231(02): 3 – 12 (2025). (ACI, 0.75 VND according to HĐCDGSNN).
[4]. Mone Phommahaxay, Nguyen Van Hao*. Green synthesis and spectroscopy properties of silver nanoparticles using Artocarpus heterophyllus shoots extract and their antibacterial activity. TNU Journal of Science and Technology, 229(02), 191-199 (2024). (ACI, 0.75 VND according to HĐCDGSNN).
[5]. Nguyen Thi Ngoc Mai, Pham The Tan, Do Tuan, Bui Hung Thang, Phan Ngoc Minh, Vi Thuy Quynh Huong, Trinh Thi Linh, Vu Xuan Hoa, Tran Thu Trang, Pham Van Trinh, and Nguyen Van Hao. Green synthesis and photothermal properties of nanofluid containing GO hybrid materials and copper nanoparticles. Proceedings of the 9th International Conference on Applied & Engineering Physics (ICAEP-9), 30 September – 3 October 2025, Nha Trang, Vietnam. pp. 100 - 105 (Publishing House for Science and Technology, ISBN: 978-604-357-474-6)
[6]. Nguyen Thi Ngoc Mai, Mone Phommahaxay, Dinh Do Dat, Tran Thi Thu Phuong, Nguyen Thi Xiem, Vu Xuan Hoa, Tran Thu Trang, Pham The Tan, Pham Van Trinh, Nguyen Van Hao. Experimental study on the photothermal properties of nanofluid containing graphene oxide-silver nanoparticle hybrid materials, Advances in Optics, Photonics, Spectroscopy & Applications XIII, Proceedings of the 13th International Conference on Photonics and Applications (ICPA13, October 14-17, 2024 in Hanoi), Natural Sciences Publishing House, pp. 213-218 (2025). ISBN: 978-604-357-381-7
5.2. Training Products:
- Support in training one PhD candidate: PhD candidate Nguyen Thi Ngoc Mai (supervised by the main supervisor).
- I have supervised 04 postgraduate students in Optics to successfully defend their theses, specifically:
- Tran Thi Thu Phuong (2024). Fabrication and study of the properties of nanostructured hybrid materials based on graphene for solar energy capture and conversion devices. Master's thesis, Faculty of Science - Thai Nguyen University.
- Nguyen Thi Thuy (2024). Fabrication and investigation of optical and thermal properties of Ag nanomaterials by directed plasma method for biomedical applications. Master's thesis, Faculty of Science - Thai Nguyen University.
- Nguyen Thi Siem (2025). Fabrication and investigation of photoelectric properties of transparent thin films using carbon nano-poly(3,4-ethylenedioxythiophene) polystyrene sulfonate hybrid material. Master's thesis, Faculty of Science - Thai Nguyen University.
- Nguyen Thi Thu (2025). Fabrication and study of photoelectric properties of silicon carbide nanomaterials by chemical method. Master's thesis, Faculty of Science - Thai Nguyen University.
5.3. Application Products:
- 01 Utility model patent application accepted: 01 patent: “Technological process for fabricating graphene-silver nanomaterials by plasma solution method combined with guava branch extract”. Decision No. 209135/QD-SHTT signed on September 18, 2025.
- 200 ml of nanofluid containing carbon nanomaterial/metal nanomaterial.
- Other products:
- Successfully synthesized nanofluid using GO-Ag and GO-Cu materials at a concentration of 1 g/L with good dispersion (product: 200 mL solution).
- 01. Process for fabricating nanofluid containing carbon nanomaterial/metal nanomaterial hybrid using liquid plasma method.
6. Transfer alternatives, application institutions, impacts and benefits of reserach results:
- The research results on the fabrication of nanofluid containing hybrid nanocarbon/nanometal materials will be transferred to interested students, trainees, lecturers, scientists, or businesses.
- Application address: Institute of Science and Technology – Faculty of Science, Thai Nguyen University.
- This research report can serve as teaching material for undergraduate and graduate students specializing in physics, chemistry and environment, electronic materials technology, and nanotechnology. It contributes to training highly skilled, application- oriented human resources (master's graduates with international publications), as well as enhancing the university's and the nation's international ranking in nanotechnology publications. It also provides opportunities for students, trainees, and staff to stay updated on current scientific issues worldwide.
- This research helps to enhance the research capacity of staff at the University of Science - Thai Nguyen University.
- This research will contribute to strengthening the research capacity of scientific staff at Thai Nguyen University in general, and the University of Science in particular, contributing to enhancing the reputation of training and scientific research of the university and increasing the university's brand through international publications and intellectual property. It will promote basic scientific research with an application-oriented approach in specialized fields of new nanomaterials, with applications in heat transfer and solar energy.
