![Sample our Physical Sciences journals, sign in here to start your FREE access for 14 days]({"type":"image" , "src" : "/sda/110819/TOC-Subject-Sample-2021-Physical-Sciences.jpg"})
ABSTRACT
Carbon sphere@layered double hydroxides filled cellulose nanofibers (ACS@LDHs/CNF) aerogel was successfully synthesized. The removal rate of Cr(VI) using ACS@LDHs/CNFs aerogel at a solid-liquid ratio of 1 g/L was 89.4%, which was higher compared to the removal rate of 65.2% using LDHs alone. The adsorption capacity of ACS@LDHs/CNFs for Cr(VI) was determined to be 44.9 mg/g. The adsorption kinetics followed the pseudo-second-order kinetic equation, and the isotherm data showed good agreement with the Langmuir model. The adsorption mechanism of Cr(VI) onto ACS@LDHs/CNFs aerogel was also investigated. Additionally, the ACS@LDHs/CNFs aerogel demonstrated consistent high adsorption efficiency over 4 consecutive cycles of adsorption-regeneration.
Acknowledgments
The authors wish to thank the support from the Natural Science Foundation of China (#21878064) and the Zhejiang Provincial Natural Science Foundation of China (#LHY22E080005) and Zhejiang Provincial Key Research and Development Program (2022C01174).
Disclosure statement
No potential conflict of interest was reported by the author(s).
Correction Statement
This article has been corrected with minor changes. These changes do not impact the academic content of the article.
Additional information
Funding
Notes on contributors
Qianyong Liang
Qianyong Liang was born in China and is currently studying for a master’s degree in Hangzhou Dianzi University. His main research direction is the composite modification of layered double hydroxides.
Ying Pan
Ying Pan was born in China and is currently working at Hangzhou Dianzi University. She has received her Ph. D. degree from University of Science and Technology of China in 2017. Her research interests focus on flame retardant nano composites and layer-by-layer self-assembled coating.
Jia Du
Jia Du was born in June 1986. She holds a Ph.D. and graduated from Harbin Institute of Technology in 2016, majoring in environmental science and engineering. Her doctoral degree is also in environmental science and engineering. Currently, she is working at Hangzhou University of Electronic Science and Technology, specifically in the School of Materials and Environmental Engineering. Her research primarily focuses on environmental toxicology, with a strong expertise in studying the toxicity of compound pollutants.
Dong Zhang
Dong Zhang Associate Professor with a PhD, was born in August 1984. He obtained his B.S. and Ph.D. degrees in 2007 and 2013, respectively, from Zhejiang University, where he specialized in Environmental Science. Throughout his career, he has focused on the research of environmental materials for enhanced remediation of contaminated soil and the study of environmental interfacial behaviors and molecular mechanisms.
Yan Zhang
Yan Zhang a graduate of the University of Science and Technology of China (USTC) in 2019, is currently conducting research on the preparation and performance of fire-safe materials. During Yan’s work at the Zhejiang Zhejiang Sci-Tech University, the focus has been on expanding the research on functional coatings. The main areas of research include: (1) microencapsulation and encapsulation modification of halogen-free flame retardant; (2) investigating the flame retardant and aging performance of wire and cable materials; and (3) the preparation, exfoliation, and functionalization of two-dimensional nano-materials such as graphene and titanium carbide.
Zhishun Zhong
Zhishun Zhong obtained his Master degree in 2008 in ecological and environmental engineering from Beijing University of Science and Technology, his current research focus is on soil and water pollution and remediation.
Hongting Zhao
Hongting Zhao is a full professor in the field of environmental materials and applications. He received his Ph. D. degree from University of Wyoming, USA in 1998. Following research endeavors in University of Colorado, Washington State University and National Laboratories in USA, he became a professor in the College of Materials and Environmental Engineering, Hangzhou Dianzi University in 2012. His research interests focus on the development of inorganic-organic hybrid materials and applications in water/air purification, multifunctional polymers and controlled release.