journal article·2020-02-28

Photocatalytic Removal of U(VI) from Wastewater via Synergistic Carbon-Supported Zero-Valent Iron Nanoparticles and S. Putrefaciens

Shuhong Xiang, Wencai Cheng, Fangting Chi, Xiaoqin Nie, Tasawar Hayat, Njud S. Alharbi

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

Abstract

In this study, nanoscale zero-valent iron (nZVI) particles were synthesized on fullerene, carbon nanotubes, and graphene to use with S. putrefaciens for U(VI) reduction under light conditions. Of the three composites, the nZVI-carbon nanotube (nZVI-CNT) composites removed the highest amount of U(VI) of 1210.9 mg/g. The nZVI-CNT composites and S. putrefaciens exhibited a synergistic effect on U(VI) reduction under light conditions. X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD) results revealed the presence of U(IV) species on the reacted bio-nZVI-CNT. S. putrefaciens might decrease the interfacial energy barrier of the photocatalytic reduction process in the bio-nZVI-CNT system. This work highlights the enhanced U(VI) removal capacity of the complex nZVI-CNT and electricigen hybrid system and provides a promising strategy for wastewater treatment.
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Research context

OpenAlex topics: Radioactive element chemistry and processing · Environmental remediation with nanomaterials · Electrochemical Analysis and Applications

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

Affiliations

School of National Defense Science & Technology, Southwest University of Science and Technology, Mianyang 621010, P. R. China

Fundamental Science on Nuclear Wastes and Environmental Safety Laboratory, Southwest University of Science and Technology, Mianyang 621010, P. R. China

Department of Mathematics, Quaid-I-Azam University, Islamabad 44000, Pakistan

Biotechnology Research Group, Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia

Funding

National Natural Science Foundation of China · Southwest University of Science and Technology · Foundation of Fundamental Science on Nuclear Waste and Environmental Security Laboratory

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