- Heavy metals in environment
- Adsorption and biosorption for pollutant removal
- Soil Carbon and Nitrogen Dynamics
- Clay minerals and soil interactions
- Coal and Its By-products
- Arsenic contamination and mitigation
- Agriculture, Soil, Plant Science
- Recycling and Waste Management Techniques
- Thermochemical Biomass Conversion Processes
- Microplastics and Plastic Pollution
- Environmental remediation with nanomaterials
- Pharmaceutical and Antibiotic Environmental Impacts
- Phosphorus and nutrient management
- Chromium effects and bioremediation
- Heavy Metal Exposure and Toxicity
- Supercapacitor Materials and Fabrication
- Catalysis for Biomass Conversion
- Municipal Solid Waste Management
- Carbon Dioxide Capture Technologies
- Mine drainage and remediation techniques
- Nanomaterials for catalytic reactions
- Ecology and Conservation Studies
- Soil and Unsaturated Flow
- Advanced Photocatalysis Techniques
- Toxic Organic Pollutants Impact
Korea University
2007-2025
Arizona State University
2024
The University of Queensland
2020-2024
Airlangga University
2024
MILA University
2022
University of Wuppertal
2017-2022
INTI International University
2022
Korea Polytechnic University
2021
Henan Agricultural University
2019-2020
China Jiliang University
2013-2020