Factors study for the removal of epoxiconazole in water by common biochars

•Properties of biochars derived from common agriculture wastes were characterized.•Bamboo, coconut shell and sawdust-coal biochar have better performance.•Specific surface area of biochar played an important role on adsorption capacity.•Adsorption capacity increased with increasing in concentration and temperature.•The adsorption mechanism was discussed in detail.