Abstract
Photo-induced electron-hole pair recombination, light response ability and surface property of photocatalyst greatly affect its activity. In this paper, a p-n junction ZnIn2S4/NiFe2O4 with biochar (ZIS/NFO/BC) was prepared, presenting improved charge carrier mobility, excellent light absorption and hierarchical porous micro-structure. ZIS/NFO/BC exhibited good photodegradation efficiency and TOC removal rate towards doxycycline hydrochloride under simulated sunlight, as well as good stability and reusability after six cycles. Biochar inhibited the agglomeration of nanoparticles, improved charge carrier mobility and light absorption ability. The synergy between adsorption of biochar and photocatalytic degradation of p-n junction greatly promoted photodegradation efficiency. Photo-induced holes (h+) played a major role during photodegradation. The effects of pH, coexisting ions (Cl-, NO3–, CO32–) and humic acid on photodegradation were investigated. Furthermore, the photodegradation mechanism was proposed and possible pathway was illustrated. This work provides new route for the development of magnetic recyclable photocatalyst with high potential for wastewater treatment.
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.
