1
|
Selective removal of cationic organic dyes via electrospun nanofibrous membranes derived from polyarylene ethers containing pendent nitriles and sulfonates. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
|
2
|
Massoudi S, Bagheri M, Beygi Khosrowshahi Y, Hosseini M. Antibacterial and cytotoxicity assessment of poly (N-vinyl imidazole)/nitrogen-doped graphene quantum dot nanocomposite hydrogels. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04371-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
3
|
Polyacrylonitrile Derived Robust and Flexible Poly(Ionic Liquid)s Nanofiber Membrane as Catalyst Supporter. Catalysts 2022. [DOI: 10.3390/catal12030266] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Poly(ionic liquid)s nanofiber (PIL NF) membrane was derived from polyacrylonitrile by converting its cyano groups to imidazoline moieties via cyclization with ethylenediamine, followed by quaternization with 1-bromobutane. The novel PIL NF is further decorated with photocatalyst phosphotungstic acid PW12 via anion exchanging to give PW-PIL. The degradation rate of the novel supported photocatalyst towards methyl orange irradiated under visible light was found to be 98%. In addition, the nanofiber membrane morphology is beneficial for easy recycling, and 98% of original degradation rate was maintained after 5 cycles of photocatalysis degradation. This robust, efficient, and recyclable material offers a new approach for serving as catalyst supporter. The photocatalyst PW-PIL is reported for the first time. The inexpensive functional membrane is used to exploit the sun as a cheap and clean source of light.
Collapse
|
4
|
Fang J, Chen Y, Fang C, Zhu L. Regenerable adsorptive membranes prepared by mussel-inspired co-deposition for aqueous dye removal. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.119876] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
5
|
Abu Elella MH, Goda ES, Gamal H, El-Bahy SM, Nour MA, Yoon KR. Green antimicrobial adsorbent containing grafted xanthan gum/SiO 2 nanocomposites for malachite green dye. Int J Biol Macromol 2021; 191:385-395. [PMID: 34537301 DOI: 10.1016/j.ijbiomac.2021.09.040] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 09/02/2021] [Accepted: 09/07/2021] [Indexed: 01/13/2023]
Abstract
Recently, removal of synthetic dyes, especially cationic dye of malachite green (MG), and inhibition of the growth of pathogenic microorganism from drinking water have gained much interest due to their high toxic potency for aquatic biosystems. Herein, a new dye adsorbent with outstanding antibacterial activity was fabricated based on xanthan gum (XG) and SiO2 nanoparticles through ultrasonication followed by the crosslinking polymerization with vinyl imidazole monomer. The nano adsorbents were characterized with various techniques such as FTIR, XRD, SEM, EDX, and TEM. The nanocomposites were applied as a filter for discarding MG dye and killing the growth of bacterial strains such as E.coli and S.aureus which are considered as the common impurities for drinking water. The data revealed that a maximum adsorption capacity was recorded as 99.5% (Qmax = 588.2 mg/g) at optimum conditions including 10 mg nanocomposite, 10 mL of MG dye (450 ppm), pH = 7, the temperature of 30 °C, and the adsorption time was adjusted within 6 h. The process of dye adsorption was applied to the common isotherm models of Langmuir, Temkin, and Freundlich, and the findings showed that the adsorption behavior was well fitted with the Langmuir one (R2 = 0.9983). Moreover, different adsorption kinetic models such as pseudo-first order, pseudo-second order, and intra-particle diffusion were studied for understanding the mechanism of MG adsorption onto nanocomposite surface. It was found that both intraparticle diffusion and pseudo-first-order have participated evenly in the adsorption mechanism of MG dye. Ultimately, the as-prepared nanocomposites were tested against the growth of S. aureus, and E.coli manifesting a superior inhibition diameter as 23.5 ± 0.50, and 25.33 ± 0.47 mm against E.coli, and S. aureus, respectively. Therefore, our new XG-g-PVI/SiO2 adsorbent is a very promising adsorbent for the fast and efficient capture of dyes from aqueous solutions.
Collapse
Affiliation(s)
| | - Emad S Goda
- Organic Nanomaterials Lab, Department of Chemistry, Hannam University, Daejeon 34054, Republic of Korea; Fire Protection Laboratory, National Institute of Standards, 136, Giza 12211, Egypt.
| | - Heba Gamal
- Home Economy Department, Faculty of Specific Education, Alexandria University, Alexandria, Egypt
| | - Salah M El-Bahy
- Department of Chemistry, Turabah University College, Taif University, P. O. Box 11099, Taif 21944, Saudi Arabia
| | - Mohamed A Nour
- Fire Protection Laboratory, National Institute of Standards, 136, Giza 12211, Egypt
| | - Kuk Ro Yoon
- Organic Nanomaterials Lab, Department of Chemistry, Hannam University, Daejeon 34054, Republic of Korea
| |
Collapse
|
6
|
Al Sharabati M, Abokwiek R, Al-Othman A, Tawalbeh M, Karaman C, Orooji Y, Karimi F. Biodegradable polymers and their nano-composites for the removal of endocrine-disrupting chemicals (EDCs) from wastewater: A review. ENVIRONMENTAL RESEARCH 2021; 202:111694. [PMID: 34274334 DOI: 10.1016/j.envres.2021.111694] [Citation(s) in RCA: 96] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Revised: 07/08/2021] [Accepted: 07/12/2021] [Indexed: 06/13/2023]
Abstract
Endocrine-disrupting chemicals (EDCs) target the endocrine system by interfering with the natural hormones in the body leading to adverse effects on human and animal health. These chemicals have been identified as major polluting agents in wastewater effluents. Pharmaceuticals, personal care products, industrial compounds, pesticides, dyes, and heavy metals are examples of substances that could be considered endocrine active chemicals. In humans, these chemicals could cause obesity, cancer, Alzheimer's disease, autism, reproductive abnormalities, and thyroid problems. While in wildlife, dysfunctional gene expression could lead to the feminization of some aquatic organisms, metabolic diseases, cardiovascular risk, and problems in the reproductive system as well as its levels of hatchability and vitellogenin. EDCs could be effectively removed from wastewater using advanced technologies such as reverse osmosis, membrane treatment, ozonation, advanced oxidation, filtration, and biodegradation. However, adsorption has been proposed as a more promising and sustainable method for water treatment than any other reported technique. Increased attention has been paid to biodegradable polymers and their nano-composites as promising adsorbents for the removal of EDCs from wastewater. These polymers could be either natural, synthetic, or a combination of both. This review presents a summary of the most relevant cases where natural and synthetic biodegradable polymers have been used for the successful removal of EDCs from wastewater. It demonstrates the effectiveness of these polymers as favorable adsorbents for novel wastewater treatment technologies. Hitherto, very limited work has been published on the use of both natural and synthetic biodegradable polymers to remove EDCs from wastewater, as most of the studies focused on the utilization of only one type, either natural or synthetic. Therefore, this review could pave the way for future exploration of biodegradable polymers as promising and sustainable adsorbents for the removal of various types of pollutants from wastewater.
Collapse
Affiliation(s)
- Miral Al Sharabati
- Materials Science and Engineering PhD Program, American University of Sharjah, Sharjah, 26666, United Arab Emirates
| | - Raed Abokwiek
- Materials Science and Engineering PhD Program, American University of Sharjah, Sharjah, 26666, United Arab Emirates
| | - Amani Al-Othman
- Department of Chemical Engineering, American University of Sharjah, Sharjah, 26666, United Arab Emirates
| | - Muhammad Tawalbeh
- Department of Sustainable and Renewable Energy Engineering, University of Sharjah, Sharjah, 27272, United Arab Emirates
| | - Ceren Karaman
- Department of Electricity and Energy, Akdeniz University, Antalya, 07070, Turkey.
| | - Yasin Orooji
- College of Materials Science and Engineering, Nanjing Forestry University, 159 Longpan Road, Nanjing, 210037, PR China
| | - Fatemeh Karimi
- Deparment of Chemical Engineering, Quchan University of Technology, Quchan, Iran.
| |
Collapse
|
7
|
Yang S, Hou Y, Xiong S, Chen F, Jiang Y, Pan C, Tang J, Yu G. Processable hypercrosslinked ionic networks for effective removal of methyl orange. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.117986] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
|
8
|
Guo J, Yang Q, Meng QW, Lau CH, Ge Q. Membrane Surface Functionalization with Imidazole Derivatives to Benefit Dye Removal and Fouling Resistance in Forward Osmosis. ACS APPLIED MATERIALS & INTERFACES 2021; 13:6710-6719. [PMID: 33512147 DOI: 10.1021/acsami.0c22685] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Water contaminated with low concentrations of pollutants is more difficult to clean up than that with high pollutant content levels. Membrane separation provides a solution for removing low pollutant content from water. However, membranes are prone to fouling, losing separation performances over time. Here we synthesized neutral (IM-NH2) and positively charged (IL-NH2) imidazole derivatives to chemically functionalize membranes. With distinct properties, these imidazole grafts could tailor membrane physicochemical properties and structures to benefit forward osmosis (FO) processes for the removal of 20-100 ppm of Safranin O dye-a common dye employed in the textile industry. The water fluxes produced by IM-NH2- and IL-NH2-modified membranes increased by 67% and 122%, respectively, with DI water as the feed compared to that with the nascent membrane. A 39% flux increment with complete dye retention (∼100%) was achieved for the IL-NH2-modified membrane against 100 ppm of Safranin O dye. Regardless of the dye concentration, the IL-NH2-modified membrane exhibited steadily higher permeation performance than the original membrane in long-term experiments. Reproducible experimental results were obtained with the IL-NH2-modified membrane after cleaning with DI water, demonstrating the good antifouling properties and renewability of the newly developed membrane.
Collapse
Affiliation(s)
- Jie Guo
- College of Environment and Resources, Fuzhou University, Fujian 350116, China
| | - Qiaoli Yang
- College of Environment and Resources, Fuzhou University, Fujian 350116, China
| | - Qing-Wei Meng
- College of Environment and Resources, Fuzhou University, Fujian 350116, China
| | - Cher Hon Lau
- School of Engineering, The University of Edinburgh, Robert Stevenson Road, The King's Buildings, Edinburgh EH9 3FB, Scotland, U.K
| | - Qingchun Ge
- College of Environment and Resources, Fuzhou University, Fujian 350116, China
| |
Collapse
|
9
|
Imidazolium functionalized cellulose filter paper derived from waste newspaper and its application in removal of chromium(VI). REACT FUNCT POLYM 2020. [DOI: 10.1016/j.reactfunctpolym.2020.104776] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
10
|
Peng X, Yan Z, Hu L, Zhang R, Liu S, Wang A, Yu X, Chen L. Adsorption behavior of hexavalent chromium in aqueous solution by polyvinylimidazole modified cellulose. Int J Biol Macromol 2020; 155:1184-1193. [DOI: 10.1016/j.ijbiomac.2019.11.086] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 10/16/2019] [Accepted: 11/09/2019] [Indexed: 12/07/2022]
|
11
|
Obtainment and Characterization of Hydrophilic Polysulfone Membranes by N-Vinylimidazole Grafting Induced by Gamma Irradiation. Polymers (Basel) 2020; 12:polym12061284. [PMID: 32512692 PMCID: PMC7362247 DOI: 10.3390/polym12061284] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 05/30/2020] [Accepted: 05/31/2020] [Indexed: 11/17/2022] Open
Abstract
Polysulfone (PSU) film and N-vinylimidazole (VIM) were used to obtain grafted membranes with high hydrophilic capacity. The grafting process was performed by gamma irradiation under two experiments: (1) different irradiation doses (100-400 kGy) and VIM 50% solution; (2) different concentration of grafted VIM (30-70%) and 300 kGy of irradiation dose. Characteristics of the grafted membranes were determined by Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), contact angle, swelling degree, desalination test, thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). Both experiments indicated that the absorbed dose 300 kGy and the VIM concentration, at 50% v/v, were effective to obtain PSU grafted membranes with 14.3% of grafting yield. Nevertheless, experimental conditions, 400 kGy, VIM 50% and 300 kGy, VIM 60-70% promoted possible membrane degradation and VIM homopolymerization on the membrane surface, which was observed by SEM images; meanwhile, 100-200 kGy and VIM 30-50% produced minimal grafting (2 ± 0.5%). Hydrophilic surface of the grafted PSU membranes by 300 kGy and VIM 50% v/v were corroborated by the water contact angle, swelling degree and desalination test, showing a decrease from 90.7° ± 0.3 (PSU film) to 64.3° ± 0.5; an increment of swelling degree of 25 ± 1%, and a rejection-permeation capacity of 75 ± 2%. In addition, the thermal behavior of grafted PSU membranes registered an increment in the degradation of 20%, due to the presence of VIM. However, the normal temperature of the membrane operation did not affect this result; meanwhile, the glass transition temperature (Tg) of the grafted PSU membrane was found at 185.4 ± 0.5 °C, which indicated an increment of 15 ± 1%.
Collapse
|
12
|
|
13
|
Yao J, Liu C, Liu X, Guo J, Zhang S, Zheng J, Li S. Azobenzene-assisted exfoliation of 2D covalent organic frameworks into large-area, few-layer nanosheets for high flux and selective molecular separation membrane. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.117864] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
14
|
Wang Z, Guo S, Zhang B, Fang J, Zhu L. Interfacially crosslinked β-cyclodextrin polymer composite porous membranes for fast removal of organic micropollutants from water by flow-through adsorption. JOURNAL OF HAZARDOUS MATERIALS 2020; 384:121187. [PMID: 31648895 DOI: 10.1016/j.jhazmat.2019.121187] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 09/06/2019] [Accepted: 09/07/2019] [Indexed: 06/10/2023]
Abstract
Persistent organic micropollutants have seriously damaged aquatic ecological equilibrium and affected human health. Conventional adsorbents are limited due to slow adsorption rate. Therefore, it's significant to integrate adsorbent into porous membrane to develop a highly efficient continuous filtration method for water purification. Herein, β-cyclodextrin polymer (β-CDP) composite porous membranes were prepared via convenient interfacial cross-linking. The membranes combined the adsorption ability of β-CDP and the convective mass transport process of filtration membrane to quickly remove contaminants from water by flow-through adsorption. In optimized preparation conditions, the composite membrane exhibited a 100% of removal efficiency towards bisphenol A and a high treating capacity up to 440 mg m-2. The treating capacity kept nearly unchanged in acidic and neutral pH condition, while increased greatly with the addition of salts due to the salting-out effect. Also, the membrane could completely remove pollutants with ultrahigh flux up to 2500 L·m-2 h-1. In addition, the used membranes were fully regenerated by mild ethanol cleaning.
Collapse
Affiliation(s)
- Zhanghui Wang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Shuang Guo
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Bin Zhang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Jinchao Fang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Liping Zhu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China.
| |
Collapse
|
15
|
Photo-assisted Ag/AgCl nanoparticle formation process can be used in the degradation of fluorescent dyes. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2019.107716] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
|
16
|
Wang Z, Zhang B, Fang C, Liu Z, Fang J, Zhu L. Macroporous membranes doped with micro-mesoporous β-cyclodextrin polymers for ultrafast removal of organic micropollutants from water. Carbohydr Polym 2019; 222:114970. [DOI: 10.1016/j.carbpol.2019.114970] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 05/29/2019] [Accepted: 06/05/2019] [Indexed: 12/31/2022]
|
17
|
Saravanakumar K, Hu X, Vijayakumar S, Wang MH. Statistical Optimization to Augment the Photocatalytic Reduction of Brilliant Blue G-250 Using the Biogenic Semiconductor Nanorods: An Ecosafety Approach. J CLUST SCI 2019. [DOI: 10.1007/s10876-019-01678-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
18
|
Crystal violet dye removal using crosslinked grafted xanthan gum. Int J Biol Macromol 2019; 137:1086-1101. [DOI: 10.1016/j.ijbiomac.2019.06.243] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Revised: 06/18/2019] [Accepted: 06/29/2019] [Indexed: 01/18/2023]
|
19
|
Qian L, Yang M, Chen H, Xu Y, Zhang S, Zhou Q, He B, Bai Y, Song W. Preparation of a poly(ionic liquid)-functionalized cellulose aerogel and its application in protein enrichment and separation. Carbohydr Polym 2019; 218:154-162. [DOI: 10.1016/j.carbpol.2019.04.081] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 04/25/2019] [Accepted: 04/26/2019] [Indexed: 10/26/2022]
|
20
|
Wang M, Huang Y, Chen Y, Yan X, Xu W, Lang W. Poly(vinylidene fluoride) membranes fabricated by vapor‐induced phase separation (VIPS) for the adsorption removal of VB12 from aqueous solution. J Appl Polym Sci 2019. [DOI: 10.1002/app.48179] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Miao Wang
- The Education Ministry Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, College of Chemistry and Materials ScienceShanghai Normal University, 100 Guilin Road Shanghai 200234 China
| | - Yuan‐Wei Huang
- The Education Ministry Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, College of Chemistry and Materials ScienceShanghai Normal University, 100 Guilin Road Shanghai 200234 China
| | - Yan Chen
- The Education Ministry Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, College of Chemistry and Materials ScienceShanghai Normal University, 100 Guilin Road Shanghai 200234 China
| | - Xi Yan
- The Education Ministry Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, College of Chemistry and Materials ScienceShanghai Normal University, 100 Guilin Road Shanghai 200234 China
| | - Wen‐Yan Xu
- The Education Ministry Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, College of Chemistry and Materials ScienceShanghai Normal University, 100 Guilin Road Shanghai 200234 China
| | - Wan‐Zhong Lang
- The Education Ministry Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, College of Chemistry and Materials ScienceShanghai Normal University, 100 Guilin Road Shanghai 200234 China
| |
Collapse
|
21
|
Sabaa MW, Hanna DH, Abu Elella MH, Mohamed RR. Encapsulation of bovine serum albumin within novel xanthan gum based hydrogel for protein delivery. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 94:1044-1055. [DOI: 10.1016/j.msec.2018.10.040] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 10/02/2018] [Accepted: 10/09/2018] [Indexed: 12/22/2022]
|
22
|
Poly (N-vinyl imidazole) gel-filled membrane adsorbers for highly efficient removal of dyes from water. J Chromatogr A 2018; 1563:198-206. [PMID: 29886000 DOI: 10.1016/j.chroma.2018.05.075] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 05/24/2018] [Accepted: 05/31/2018] [Indexed: 11/21/2022]
Abstract
Energy-efficient and time-saving process for recovery of hazardous dyes from wastewater is highly desired in dyeing industry. In this work, poly(N-vinyl imidazole) (PVI) gel-filled membrane adsorbers were developed for highly efficient recovery of dyes through adsorption filtration. The membrane adsorbers were fabricated via dip-coating of Nylon macroporous membranes in PVI solutions followed by quaternization crosslinking with p-xylylene dichloride (XDC). Physicochemical characterizations indicated that PVI gel was successfully filled and fixed inside the Nylon matrix. In optimized conditions. The treating capacity of membrane adsorbers to typical dye sunset yellow (25 ppm of the feed concentration) reached up to 197 mg/g with the removal ratio >99%. Both the treating capacity and the removal ratio were kept steady even when the permeation flux was as high as 1000 L/m2 h. The membrane adsorbers developed in this work were able to not only remove anionic dyes from water, but also separate anionic dyes from cationic ones. The zeta potential and adsorption tests showed that the electrostatic interaction between PVI gel and dye molecules was responsible for the high removal efficiencies to anionic dyes. The membrane adsorbers can be regenerated effectively with NaOH solution and demonstrated good stability in both acidic and alkaline conditions.
Collapse
|
23
|
Yan X, Zhang X, Li Q. Preparation and characterization of CS/β-CD/Nano-ZnO composite porous membrane optimized by Box-Behnken for the adsorption of Congo red. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:22244-22258. [PMID: 29804255 DOI: 10.1007/s11356-018-2110-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 04/23/2018] [Indexed: 06/08/2023]
Abstract
In this paper, an effective chitosan/beta-cyclodextrin/nanometer zinc oxide (CS/β-CD/Nano-ZnO) composite porous membrane was synthesized by sol-gel and polymer-assisted inverting method. Preparation conditions of CS/β-CD/Nano-ZnO were investigated by single-factor and Box-Behnken response surface methodology optimizing triethoxyvinylsilane (JH-V151), beta-cyclodextrin (β-CD), and nanometer zinc oxide (Nano-ZnO), and applied to study the adsorption characteristics of Cong red (CR) from aqueous solution using batch experiments. The optimum preparation conditions were determined that the volume fraction of JH-V151 alcohol solution was 11%, the ratio of β-CD to CS was 5.35, and the ratio of Nano-ZnO's mass to solution's volume was 0.36%. Different characterization methods including field-emission scanning electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy, UV-visible spectroscopy, and Universal Materials Tester were used to prove the appearance, crystallinity, functional groups, swelling degree, transmittance, and tensile property of CS/β-CD/Nano-ZnO. The optimized batch experimental parameters were 50 mg L-1, 4 h, 7.0, 0.5 g L-1, and 55.0 °C as initial concentration, contact time, pH, adsorbent dose, and temperature, respectively. The maximum adsorption capacity on CR reached 96.33 mg g-1, which is 4.34 times with respect to CS. The batch experimental data were best described by a pseudo-second-order kinetics model and Langmuir isotherm model (R2 = 0.9965, theoretical saturated adsorption capacity 147.28 mg g-1). The values ∆G were - 2.09, - 4.73, and - 7.37 kJ mol-1 at 298, 308, and 318 K temperatures, respectively. The ∆H value was 76.68 kJ mol-1, indicating the endothermic and spontaneous adsorption in nature. The ∆S value was 0.26 kJ mol-1 K-1, a signal of entropy increase during adsorption. The adsorption capacity decreased only by 5.8% after six recycling runs, which indicated the reusability of CS/β-CD/Nano-ZnO. Therefore, the CS/β-CD/Nano-ZnO composite porous membrane is a promising membrane material for the efficient removal of CR from any water at large and economic scales at moderate concentration.
Collapse
Affiliation(s)
- Xuechao Yan
- School of Environment and Energy, Guangzhou Higher Education Mega Centre, South China University of Technology, Guangzhou, 510006, People's Republic of China
| | - Xiaoping Zhang
- School of Environment and Energy, Guangzhou Higher Education Mega Centre, South China University of Technology, Guangzhou, 510006, People's Republic of China.
- The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters of Ministry of Education, Guangzhou, 510006, People's Republic of China.
- Guangdong Environmental Protection Key Laboratory of Solid Waste Treatment and Recycling, Guangzhou, 510006, People's Republic of China.
- Guangdong Provincial Engineering and Technology Research Center for Environmental Risk Prevention and Emergency Disposal, Guangzhou, 510006, People's Republic of China.
| | - Qian Li
- School of Environment and Energy, Guangzhou Higher Education Mega Centre, South China University of Technology, Guangzhou, 510006, People's Republic of China
| |
Collapse
|
24
|
Li S, Luo J, Fan J, Chen X, Wan Y. Aflatoxin B1 removal by multifunctional membrane based on polydopamine intermediate layer. Sep Purif Technol 2018. [DOI: 10.1016/j.seppur.2018.02.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
|
25
|
Li F, Huang J, Xia Q, Lou M, Yang B, Tian Q, Liu Y. Direct contact membrane distillation for the treatment of industrial dyeing wastewater and characteristic pollutants. Sep Purif Technol 2018. [DOI: 10.1016/j.seppur.2017.11.058] [Citation(s) in RCA: 115] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
26
|
Enhancement of CdS nanoparticles photocatalytic activity by Pt and In 2 O 3 doping for the degradation of malachite green dye in water. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.01.127] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|