Enhanced adsorption of Cr(VI) pollutants using CaFe2O4@rGO modified-biochar derived from mixture of black soldier flier exuviae and durian peel

Lan Huong Nguyen, Hoang Phuong Nguyen Vu, Phu Vinh, Van-Phuoc Kha, Nam Thai Van, Van-Trung Phan, Duc-Hoan Huynh, Thanh-Sang Le