journal article·2019-03-22

Magnetic Hierarchical Photocatalytic Nanoreactors: Toward Highly Selective Cd2+ Removal with Secondary Pollution Free Tetracycline Degradation

Ziyang Lu, Fan He, Cheng Yu Hsieh, Xiangyang Wu, Minshan Song, Xinlin Liu, Yang Liu, Shouqi Yuan, Hongjun Dong, Song Han, Peng Du, Guozhong Xing

ACS Applied Nano Materials· Volume 2· Issue 3
Publisher page

Abstract

In the present work, a new type of ecofriendly and recyclable magnetic hierarchical porous Cd2+ imprinted photocatalytic nanoreactors (MHP-Cd) are developed by utilizing the ion imprinting technique. Owing to numerous Cd2+ cavities generation and corresponding high adsorption capacity of Cd2+ of 154.99 mg/g in the imprinted layer, the as-prepared nanoreactors exhibit excellent selectivity of Cd2+ adsorption under corroboration of enhanced kions of Cd2+ to other ions [kions(Cd2+/Fe3+) = 2.836, kions(Cd2+/Cu2+) = 2.303, and kions(Cd2+/Zn2+) = 3.064]. Importantly, with coexistence of mesoporous and sodium pyrrolidone carboxylate, i.e., light transmittance materials, toxic tetracycline can easily contact with CdS and most of the light is amenable to being adsorbed by CdS, consequently promoting higher photocatalytic activity for degradation of tetracycline (i.e., degradation rate reaches 75.32%). Such developed MHP-Cd photocatalysts demonstrate a highly selective adsorption of Cd2+ and simultaneous tetracycline degradation with effective inhibition of the secondary pollution. With a promoted stability for recycling, our work provides a new promising technique for environment-friendly selective adsorption of targeted heavy metal ions and synchronous degradation of antibiotic containment in mixed water environments.
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Research context

OpenAlex topics: Advanced Photocatalysis Techniques · Covalent Organic Framework Applications · Carbon and Quantum Dots Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of the Environment and Safety Engineering, Institute of Environmental Health and Ecological Security, Jiangsu University, Zhenjiang, Jiangsu 212013, China

Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun, Jilin 130103, China

United Microelect Corporation Ltd., 3 Pasir Ris Drive 12, Singapore 519528, Singapore

School of Science, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212003, China

School of Energy and Power Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China

Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang, Jiangsu 212013, China

School of Chemistry & Chemical Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China

Department of Electronic Engineering, Institute for Wearable Convergence Electronics, Kyung Hee University, Yongin-si, Gyeonggi-do 17104, Republic of Korea

Funding

National Natural Science Foundation of China · China Postdoctoral Science Foundation · Natural Science Foundation of Jiangsu Province · Jiangsu University · Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University · Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment · Social Development Project of Key Research Program of Zhenjiang

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