Biochar-based adsorption for heavy metal removal in water: a sustainable and cost-effective approach - Jalal Bayar; Nawab Ali; Younsuk Dong; Uzair Ahmad; Muhammad Mehran Anjum; Gul Roz Khan; Muhammad Zaib; Arshad Jalal; Rovaid Ali; Liaqat Ali (Environmental Geochemistry and Health, 2024)