@article {rajapaksha2018removal,
	title = {Removal of hexavalent chromium in aqueous solutions using biochar: Chemical and spectroscopic investigations},
	journal = {Science of The Total Environment},
	volume = {625},
	year = {2018},
	pages = {1567{\textendash}1573},
	publisher = {Elsevier},
	author = {Rajapaksha, Anushka Upamali and Alam, Md Samrat and Chen, Ning and Alessi, Daniel S and Igalavithana, Avanthi Deshani and Tsang, Daniel CW and Sik Ok, Yong}
}
