Abstract
In this research, a ternary composite of biochar - nickel ferrite – silver phosphate has been characterized and employed for methylene blue photodegradation and mercury adsorption. Response surface methodology was adopted to optimize effective parameters on removal. It was found that maximum dye degradation and mercury adsorption was obtained at pH of 7 with dosage of 26 mg and 90 min reaction time. Moreover, the composite of biochar/NiFe2O4/Ag3PO4 with the ratio of 70:20:10 able to remove 94 % of dye and 98.5 % of mercury at the initial concentration of 10 mg L−1. It was found that the rate of methylene blue degradation increase with increasing the temperature as it was destroyed at a temperature of 45 °C within 1 h. Kinetic and isotherm studies for the adsorption experiments showed that mercury adsorption followed the pseudo – second order kinetic model and Langmuir adsorption isotherm. Moreover, thermodynamic study indicated that the adsorption process is spontaneous with an endothermic path. With a good maximum adsorption capacity of 241 mg g−1 and four cycle reusability, the prepared composite is a suitable candidate to simultaneously mitigate the side effect of dye and heavy metal in aqueous media.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
