Rational design of magnetically separable core/shell Fe<sub>3</sub>O<sub>4</sub>/ZnO heterostructures for enhanced visible-light photodegradation performance
Hoai Linh Pham, Van Dang Nguyen, Van Dang Nguyen, Van Khien Nguyen, Van Khien Nguyen, Thi Hong Phong Le, Ngoc Bach Ta, Do Chung Pham, Quốc Toản Trần, Đặng Văn Thành
Abstract
nanoparticles served as a template for supporting and anchoring the ZnO crystal layer as the shells. The morphology of MSCSFZ can be varied from spherical to rice seed-like structures, and the bandgap was able to be narrowed down to 2.78 eV by controlling the core-shell ratios. As a result, the MSCSFZ exhibited excellent visible-light photocatalytic activity for degradation of rhodamine B (RhB) in aqueous solution as compared to the controlled ZnO nanoparticles. Moreover, MSCSFZ could be easily detached from RhB solution and maintained its performance after 4 cycles of usage. This work provides new insights for the design of high-efficient core/shell recyclable photocatalysts with visible light photocatalytic performance.