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Liu S, Sun M, Wu C, Zhu K, Hu Y, Shan M, Wang M, Wu K, Wu J, Xie Z, Tang H. Fabrication of Loose Nanofiltration Membrane by Crosslinking TEMPO-Oxidized Cellulose Nanofibers for Effective Dye/Salt Separation. Molecules 2024; 29:2246. [PMID: 38792108 PMCID: PMC11123938 DOI: 10.3390/molecules29102246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 05/06/2024] [Accepted: 05/08/2024] [Indexed: 05/26/2024] Open
Abstract
Dye/salt separation has gained increasing attention in recent years, prompting the quest to find cost-effective and environmentally friendly raw materials for synthesizing high performance nanofiltration (NF) membrane for effective dye/salt separation. Herein, a high-performance loose-structured NF membrane was fabricated via a simple vacuum filtration method using a green nanomaterial, 2,2,6,6-tetramethylpiperidine-1-oxide radical (TEMPO)-oxidized cellulose nanofiber (TOCNF), by sequentially filtrating larger-sized and finer-sized TOCNFs on a microporous substrate, followed by crosslinking with trimesoyl chloride. The resulting TCM membrane possessed a separating layer composed entirely of pure TOCNF, eliminating the need for other polymer or nanomaterial additives. TCM membranes exhibit high performance and effective dye/salt selectivity. Scanning Electron Microscope (SEM) analysis shows that the TCM membrane with the Fine-TOCNF layer has a tight layered structure. Further characterizations via Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD) confirmed the presence of functional groups and chemical bonds of the crosslinked membrane. Notably, the optimized TCM-5 membrane exhibits a rejection rate of over 99% for various dyes (Congo red and orange yellow) and 14.2% for NaCl, showcasing a potential candidate for efficient dye wastewater treatment.
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Affiliation(s)
- Shasha Liu
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu 241000, China; (S.L.); (M.S.); (C.W.); (K.Z.); (Y.H.); (M.S.); (M.W.); (K.W.); (J.W.)
| | - Mei Sun
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu 241000, China; (S.L.); (M.S.); (C.W.); (K.Z.); (Y.H.); (M.S.); (M.W.); (K.W.); (J.W.)
| | - Can Wu
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu 241000, China; (S.L.); (M.S.); (C.W.); (K.Z.); (Y.H.); (M.S.); (M.W.); (K.W.); (J.W.)
| | - Kaixuan Zhu
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu 241000, China; (S.L.); (M.S.); (C.W.); (K.Z.); (Y.H.); (M.S.); (M.W.); (K.W.); (J.W.)
| | - Ying Hu
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu 241000, China; (S.L.); (M.S.); (C.W.); (K.Z.); (Y.H.); (M.S.); (M.W.); (K.W.); (J.W.)
| | - Meng Shan
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu 241000, China; (S.L.); (M.S.); (C.W.); (K.Z.); (Y.H.); (M.S.); (M.W.); (K.W.); (J.W.)
| | - Meng Wang
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu 241000, China; (S.L.); (M.S.); (C.W.); (K.Z.); (Y.H.); (M.S.); (M.W.); (K.W.); (J.W.)
| | - Kai Wu
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu 241000, China; (S.L.); (M.S.); (C.W.); (K.Z.); (Y.H.); (M.S.); (M.W.); (K.W.); (J.W.)
| | - Jingyi Wu
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu 241000, China; (S.L.); (M.S.); (C.W.); (K.Z.); (Y.H.); (M.S.); (M.W.); (K.W.); (J.W.)
| | - Zongli Xie
- CSIRO Manufacturing, Private Bag 10, Clayton South, VIC 3169, Australia
| | - Hai Tang
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu 241000, China; (S.L.); (M.S.); (C.W.); (K.Z.); (Y.H.); (M.S.); (M.W.); (K.W.); (J.W.)
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Multifunctional nano-cellulose aerogel for efficient oil-water separation: Vital roles of magnetic exfoliated bentonite and polyethyleneimine. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
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Jevrosimov I, Kragulj Isakovski M, Apostolović T, Tamindžija D, Rončević S, Sigmund G, Ercegović M, Maletić S. Microbially inoculated chars strongly reduce the mobility of alachlor and pentachlorobenzene in an alluvial sediment. INTEGRATED ENVIRONMENTAL ASSESSMENT AND MANAGEMENT 2022. [PMID: 36165191 DOI: 10.1002/ieam.4691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 09/19/2022] [Accepted: 09/20/2022] [Indexed: 06/16/2023]
Abstract
The objective of this study was to investigate the transport behavior of two organic and persistent contaminants (alachlor and pentachlorobenzene) on Danube alluvial sediment in the absence and in the presence of microbially inoculated biochar produced at 400 °C and three hydrochars produced at 180, 200, and 220 °C. Stainless steel columns were used for the sorption experiments in nonequilibrium conditions. Obtained results were modeled using the advective-dispersive equation under nonequilibrium conditions. Transport of these compounds through the alluvial sediment column showed that the retention time increased with increasing molecular hydrophobicity. Inoculated biochar increases the retardation of both compounds: twofold for pentachlorobenzene compared with alachlor as a consequence of a higher hydrophobicity. Obtained results indicate that the highest biodegradation coefficient was observed for pentachlorobenzene (λ = 10) in alluvial sediment with addition of an inoculated hydrochar, which is assumed to be a consequence of biosorption. Moreover, all experiments on the columns indicate that the addition of inoculated chars yields a significantly higher Rd coefficient for pentachlorobenzene than for alachlor. Bacterial counts increased in all of the column experiments, which indicates the successful adaptation of microorganisms to experimental conditions and their potential for the removal of a large number of organic pollutants. Thus, addition of inoculated chars to contaminated sediments has the potential as a remediation technique to inhibit the leaching of pollutants to groundwaters. Integr Environ Assess Manag 2022;00:1-10. © 2022 SETAC.
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Affiliation(s)
- Irina Jevrosimov
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, University of Novi Sad, Novi Sad, R. Serbia
| | - Marijana Kragulj Isakovski
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, University of Novi Sad, Novi Sad, R. Serbia
| | - Tamara Apostolović
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, University of Novi Sad, Novi Sad, R. Serbia
| | - Dragana Tamindžija
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, University of Novi Sad, Novi Sad, R. Serbia
| | - Srđan Rončević
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, University of Novi Sad, Novi Sad, R. Serbia
| | - Gabriel Sigmund
- Department of Environmental Geosciences, Centre for Microbiology and Environmental Systems Science, University of Vienna, Vienna, Austria
| | - Marija Ercegović
- Institute for Technology of Nuclear and Other Mineral Raw Materials, Belgrade, R. Serbia
| | - Snežana Maletić
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, University of Novi Sad, Novi Sad, R. Serbia
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