A5040734845- Advanced Photocatalysis Techniques
- Microplastics and Plastic Pollution
- Graphene and Nanomaterials Applications
- Adsorption and biosorption for pollutant removal
- Conducting polymers and applications
- Algal biology and biofuel production
- Nanomaterials for catalytic reactions
- TiO2 Photocatalysis and Solar Cells
- Recycling and Waste Management Techniques
- biodegradable polymer synthesis and properties
- Advanced Sensor and Energy Harvesting Materials
- Carbon and Quantum Dots Applications
- Organic Electronics and Photovoltaics
- Graphene research and applications
- Corrosion Behavior and Inhibition
- Advanced Nanomaterials in Catalysis
- Synthesis and properties of polymers
- Natural Fiber Reinforced Composites
- Water Quality Monitoring and Analysis
- Fiber-reinforced polymer composites
- Biocrusts and Microbial Ecology
- Analytical Chemistry and Sensors
- Mechanical Behavior of Composites
- Constructed Wetlands for Wastewater Treatment
- Phosphorus and nutrient management
Vietnam Academy of Science and Technology
2018-2025
Hanoi University of Natural Resources and Environment
2013-2025
Ho Chi Minh City University of Technology
2022
Vietnam National University Ho Chi Minh City
2022
Abstract This study investigates the potential of utilizing spent coffee grounds (SCG) treated with Ca(OH) 2 as an adsorbent for removal lead (Pb(II)) ions from aqueous solutions. The SCG was subjected to sequential treatments, including washing, drying, sieving, and immersion in solutions varying concentrations. Adsorption experiments were conducted under different conditions evaluate efficiency adsorbent, variations contact time, solution pH, dosage, temperature, initial Pb(II) ion...
Titanium dioxide/graphene aerogel (TiO2/GA) was synthesized via a one-pot hydrothermal method and characterized by various spectroscopic techniques, including X-ray diffraction, Fourier transform infrared spectroscopy, photoelectron scanning electron microscope, transmission microscopy, Raman UV-Vis spectroscopy. The influences of pH TiO2/GA dose on the photocatalytic performance were investigated against positive dye methylene blue (MB) under UV light control. characterization revealed that...
Abstract Natural rubber (NR) is valuable material of natural origination with growing demand worldwide. Thus, the methods for NR property improvement are continuously developed. The article will be focused on chemical modification and use improved traditional fillers such as carbon black (CB) silica. Modification reactions include epoxidation, hydrogenation, grafting vinyl monomers onto molecules. Some surface film were also reviewed. Thanks to degree unsaturatiton decrease that leads its...
In this study, titanium dioxide-reduced graphene oxide (TiO2-rGO(TGO)) nanocomposite was synthesized via hydrothermal pathway. The characterization of the fabricated material revealed an efficient incorporation two constituents, as well a notable decrease in band gap energy TGO compared to that pristine TiO2 (2.62 versus 3.15 eV, respectively), which can expand absorption spectrum catalyst towards visible region. Electrochemical studies also elucidated contribution rGO substrate prolonging...
Abstract In this study, nanocomposite membranes based on bacterial cellulose (BC) and graphene oxide (GO) were synthesized at different volume ratios of BC to GO. The mechanical properties these investigated determine the optimal combination ratio. Furthermore, adsorption capacity for Cr(VI) heavy metal ions was evaluated under various conditions, including time, temperature, pH, stirring rate, adsorbent dosage. strength analysis revealed that membrane with a GO ratio 1:6 exhibited highest...
Sự kết hợp đồng thời xử lý nước thải sinh hoạt và sản xuất phycocyanin bằng vi khuẩn lam Spirulina platensis được coi là một phương pháp tiếp cận đầy hứa hẹn theo hướng kinh tế tuần hoàn. Để tăng cường khả năng tổng của lam, ảnh hưởng carbon hữu cơ đối với sự phát triển loại bỏ chất dinh dưỡng đã nghiên cứu. Kết quả cứu cho thấy hàm lượng đạt cao nhất 82,54 mg/L ở nghiệm thức giả định có bổ sung glucose. Hiệu N-NH4+, P-PO43-, T-P COD lần lượt 92 %, 81 71 % sau 12 ngày Công trình này cũng...
Abstract The nanocomposite material bacterial cellulose/graphene oxide (BC/GO) is fabricated using cellulose derived from coconut husk biomass. nano fibers retain their natural structure and intertwine with graphene oxide. SEM method confirms the interwoven between nanocellulose As proportion of increases, tensile strength improves, peaking at 95.68 MPa a BC:GO ratio 1:7. Additionally, Young's modulus measures 12.87 GPa. Post‐fabrication, BC/GO membrane undergoes structural mechanical...
Polypyrrole (PPy) films doped with molybdate and salicylate have been successfully electropolymerized on low carbon steel in aqueous solutions containing both a one-step process that did not require any pre-treatment of the substrate. Salicylate-doped PPy were synthesized same way for comparison. The surface was rapidly inhibited PPy-based formed it easily. characterized by Fourier transform infrared, scanning electron microscopy, energy dispersive X-ray, thermal gravimetric analysis...
Microplastics (MPs) have been extensively studied in aquatic systems; however, their presence general agricultural systems and particular, soil still needs comprehensive understanding. This study conducted a field survey at 25 sites to investigate the abundance of MPs soil. The these samples were separated using sieves filters by density separation method with NaCl solution (d = 1.2 g/cm3). soils ranged from 1,700 items/kg 38,800 items/kg, an average 11,716 ±10,726 items/kg. black-colored...
Herein, findings from 98 research papers [52 biochar (BC) and 46 activated carbon (AC) papers] were analyzed using a bootstrap method 95% confidence interval (CI) to provide insights into nutrient adsorption. The results indicated the solution temperature, pore volume, specific surface area, pyrolysis temperature correlated significantly maximum adsorption capacity (Qm), achieving r values of 0.37, 0.23, 0.16, 0.14, respectively. A statistically significant difference was witnessed for...