Nanodiamonds decorated yolk-shell ZnFe_(2)O_(4) sphere as magnetically separable and recyclable composite for boosting antibiotic degradation performance  

作　　者：Jingjing Pan Haoran Sun Keyi Chen Yuhao Zhang Pengnian Shan Weilong Shi Feng Guo 

机构地区：[1]School of Energy and Power,Jiangsu University of Science and Technology,Zhenjiang 212003,China [2]School of Material Science and Engineering,Jiangsu University of Science and Technology,Zhenjiang 212003,China [3]College of Chemistry,Zhengzhou University,Zhengzhou 450001,China

出　　处：《Chinese Journal of Chemical Engineering》2023年第2期162-172,共11页中国化学工程学报（英文版）

基　　金：the founding support from the National Natural Science Foundation of China(21906072 and 22006057);the Natural Science Foundation of Jiangsu Province(BK20190982);Henan Postdoctoral Foundation(202003013);“Doctor of Mass entrepreneurship and innovation” Project in Jiangsu Province;Open Fund for Hebei Province Key Laboratory of Sustained Utilization & Development of Water Recourse(HSZYL2021003)。

摘　　要：Photocatalysis is an environmentally friendly and energy-saving technology, which can effectively remove persistent dangerous pollutants in the water. Pitifully, optical absorption capacity and carrier separation have become major bottlenecks for marvelous photocatalytic performance of photocatalysts.Herein, to address these issue, Nanodiamonds/yolk-shell ZnFe_(2)O_(4) spheres(NDs/ZFO) nanocomposites were successfully constructed via a facile two-step of solvothermal and calcination methods. The synthesized optimal NDs/ZFO-10 nanocomposite exhibits superior photocatalytic degradation activity of antibiotic under visible light, approximately 85% of the total tetracycline(TC) is degraded, and this photocatalyst shows durable cycling stability. This stems from two aspects of refinement: improvement of light absorption capacity and photo-induced charges migration and separation. In addition, the NDs/ZFO composite photocatalyst features excellent magnetic recovery capability, facilitating the recovery of photocatalyst in industry. This study opens a new chapter in the combination of NDs with magnetic materials, and deepens the understanding of the application of NDs modified composite photocatalysts.

关 键 词：NANODIAMONDS ZnFe_(2)O_(4) Photocatalytic Heterojunction Antibiotic degradation 

分 类 号：X703[环境科学与工程—环境工程] O643.36[理学—物理化学] O644.1[理学—化学]