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Syed Ali SA, Ilankoon IMSK, Zhang L, Tan J. Understanding de-inking in packaging plastic recycling: Bridging the gap in resource conservation and establishing average hazard quotient. JOURNAL OF HAZARDOUS MATERIALS 2024; 479:135554. [PMID: 39232354 DOI: 10.1016/j.jhazmat.2024.135554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2024] [Revised: 07/29/2024] [Accepted: 08/15/2024] [Indexed: 09/06/2024]
Abstract
Achieving circularity in the plastic economy predominantly depends on sourcing higher quality recyclates. Packaging plastic poses a significant challenge as it is often not prioritised for collection or recycling initiatives. The presence of additives, such as printing ink, impedes the quality of recyclates. Considering the volume of packaging plastics and the importance of branding (aesthetics and consumer information), ink removal is a critical pre-treatment step. However, the literature is limited, with only 14 studies exploring de-inking processes. Drawing parallels with the detergent laundering process, surfactants have been widely investigated in plastic de-inking, with cationic surfactants proving the most effective with a de-inking efficiency of up to 100%. However, concerns exist regarding the toxic and hazardous nature of the surfactants and chemicals. The average hazard quotient (AHQ) was developed, which compares de-inking chemicals as one of the key findings. AHQ provides a quantitative proxy for the hazards and toxicities, which are qualitatively presented as part of the globally harmonised system (GHS) classification of chemicals. To drive emerging packaging plastic de-inking, including the development of green surfactants (e.g. gamma-valerolactone), this work enables an informed chemical selection minimising potential hazards (rather than creating more adverse effects in plastic recycling processes) and toxicities from plastic waste, fulfilling the objectives of cleaner plastic waste recycling.
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Affiliation(s)
- Shafeeq Ahmed Syed Ali
- Department of Chemical Engineering, School of Engineering, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, Selangor Darul Ehsan 47500, Malaysia; Waste and Critical Metals Sustainability Research Group, School of Engineering, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, Selangor Darul Ehsan 47500, Malaysia.
| | - I M S K Ilankoon
- Department of Chemical Engineering, School of Engineering, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, Selangor Darul Ehsan 47500, Malaysia; Waste and Critical Metals Sustainability Research Group, School of Engineering, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, Selangor Darul Ehsan 47500, Malaysia.
| | - Lian Zhang
- Department of Chemical and Biological Engineering, Monash University, Wellington Road, Clayton, Victoria 3800, Australia.
| | - Jully Tan
- Department of Chemical Engineering, School of Engineering, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, Selangor Darul Ehsan 47500, Malaysia.
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Aziz T, Li W, Zhu J, Chen B. Developing multifunctional cellulose derivatives for environmental and biomedical applications: Insights into modification processes and advanced material properties. Int J Biol Macromol 2024; 278:134695. [PMID: 39151861 DOI: 10.1016/j.ijbiomac.2024.134695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2024] [Revised: 08/05/2024] [Accepted: 08/11/2024] [Indexed: 08/19/2024]
Abstract
The growing bioeconomic demand for lightweight, eco-friendly materials with functional versatility and competitive mechanical properties drives the resurgence of cellulose as a sustainable scaffold for various applications. This review comprehensively scrutinizes current progressions in cellulose functional materials (CFMs), concentrating on their structure-property connections. Significant modification methods, including cross-linking, grafting, and oxidation, are discussed together with preparation techniques categorized by cellulose sources. This review article highlights the extensive usage of modified cellulose in various industries, particularly its potential in optical and toughening applications, membrane production, and intelligent bio-based systems. Prominence is located on low-cost procedures for developing biodegradable polymers and the physical-chemical characteristics essential for biomedical applications. Furthermore, the review explores the role of cellulose derivatives in smart packaging films for food quality monitoring and deep probes into cellulose's mechanical, thermal, and structural characteristics. The multifunctional features of cellulose derivatives highlight their worth in evolving environmental and biomedical engineering applications.
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Affiliation(s)
- Tariq Aziz
- Faculty of Civil Engineering and Mechanics, Jiangsu University, 212013, China
| | - Wenlong Li
- Faculty of Civil Engineering and Mechanics, Jiangsu University, 212013, China
| | - Jianguo Zhu
- Faculty of Civil Engineering and Mechanics, Jiangsu University, 212013, China.
| | - Beibei Chen
- School of Materials Science and Engineering, Institute for Advanced Materials, Jiangsu University, Zhenjiang 212013, China.
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Sayın FE, Karatas O, Özbay İ, Gengec E, Khataee A. Treatment of real printing and packaging wastewater by combination of coagulation with Fenton and photo-Fenton processes. CHEMOSPHERE 2022; 306:135539. [PMID: 35779686 DOI: 10.1016/j.chemosphere.2022.135539] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 06/14/2022] [Accepted: 06/26/2022] [Indexed: 06/15/2023]
Abstract
Printing and packaging process wastewater (PPPW) with high flow rates causes severe damage to the environment due to high organic pollution (3830.0 mg O2/L of COD and 813.6 mg/L of TOC) and turbidity (9110 NTU). This study examined the efficiencies of coagulation, Fenton, and photo-Fenton procedures, and their combinations in the treatment of PPPW. The three inorganic salts (FeCl3, Al2(SO4)3, and Fe2(SO4)3) were used in a wide range of pH (2.5-10) as a coagulant, and FeCl3 was chosen as the optimum coagulant. The 71.3% of TOC removal and the decreasing of turbidity up to 5.8 NTU were obtained at 0.5 g/L FeCl3 and pH of 6.0. Then, Fenton and photo-Fenton processes were applied to the effluent of the coagulation process. The Fenton process engaged the TOC removal efficiencies up to 85.2% in the presence of 7.350 g/L iron catalysts and 36.0 mL/L H2O2. The combined coagulation and Fenton process is a promising way to decrease the COD up to 119 mg O2/L, meeting the wastewater discharge standards of COD (200 mg O2/L) in Turkey. However, adding UV sources to the Fenton process showed a little bit of engagement (only %1.4 extra removal). When evaluated for PPPW, it is seen that the usage of combined coagulation and the Fenton process is an important treatment alternative. Furthermore, Zeta potential measurements and size exclusion chromatography were used to understand the removal mechanism.
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Affiliation(s)
- Fatma Ece Sayın
- Department of Environmental Engineering, Kocaeli University, Izmit 41380, Kocaeli, Turkey
| | - Okan Karatas
- Department of Environmental Engineering, Gebze Technical University, 41400, Gebze, Turkey; Department of Environmental Engineering, Bursa Technical University, 16310, Bursa, Turkey
| | - İsmail Özbay
- Department of Environmental Engineering, Kocaeli University, Izmit 41380, Kocaeli, Turkey
| | - Erhan Gengec
- Department of Environmental Protection Technology, Kocaeli University, 41275, Kocaeli, Turkey
| | - Alireza Khataee
- Department of Environmental Engineering, Gebze Technical University, 41400, Gebze, Turkey; Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, 51666- 16471, Tabriz, Iran.
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Gholami F, Zinadini S, Kamrani SN, Zinatizadeh AA, Bahrami K. Color removal from wastewater using a synthetic high-performance antifouling GO-CPTMS@Pd-TKHPP/polyether sulfone nanofiltration membrane. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:20463-20478. [PMID: 34739672 DOI: 10.1007/s11356-021-16655-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 09/17/2021] [Indexed: 06/13/2023]
Abstract
Modified graphene oxide with 5,10,15,20-tetrakis-(4-hexyloxyphenyl)-porphyrin and palladium (II) (signified by GO-CPTMS@Pd-TKHPP) prepared as a novel antifouling polyether sulfone (PES) blended nanofiller membrane. The membrane efficiency has been analyzed such as pure water flux (PWF), hydrophilicity, and antifouling features. By increasing of modified graphene oxide percentage from 0 to 0.1 wt.% in the polymer matrix, the PWF was incremented from 14.35 to 37.33 kg/m2·h at 4 bar. The membrane flux recovery ratio (FRR) has been investigated by applying powdered milk solution; the FRR results indicated that the 0.1 wt.%-modified graphene oxide membrane showed a positive effect on fouling behavior with Rir and FRR value 8.24% and 91.76%, respectively. The nanofiltration membrane performance was assessed applying the Direct Red 16 dye rejection. It was demonstrated that the optimal membranes (0.1 wt.%-modified graphene oxide) had notable dye removal (99.58% rejection). The results are also verified by measuring the scanning electron microscopy (SEM), water contact angle (WCA), and atomic microscopy analysis (AFM).
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Affiliation(s)
- Foad Gholami
- Environmental Research Center (ERC), Department of Applied Chemistry, Faculty of Chemistry, Razi University, Kermanshah, 67149-67346, Iran
| | - Sirus Zinadini
- Environmental Research Center (ERC), Department of Applied Chemistry, Faculty of Chemistry, Razi University, Kermanshah, 67149-67346, Iran.
| | - Soheila Nakhjiri Kamrani
- Department of Organic Chemistry, Faculty of Chemistry, Razi University, Kermanshah, 67149-67346, Iran
| | - Ali Akbar Zinatizadeh
- Environmental Research Center (ERC), Department of Applied Chemistry, Faculty of Chemistry, Razi University, Kermanshah, 67149-67346, Iran
- Department of Environmental Sciences, University of South Africa, Pretoria, South Africa
| | - Kiumars Bahrami
- Department of Organic Chemistry, Faculty of Chemistry, Razi University, Kermanshah, 67149-67346, Iran
- Nanoscience and Nanotechnology Research Center (NNRC), Razi University, Kermanshah, 67149-67346, Iran
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Ong JH, Liang YN, Hu X, Xu R. TEMPO-Oxidized Microcrystalline Cellulose for Rapid Adsorption of Ammonium. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.1c04599] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jia Hui Ong
- School of Chemical & Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, 637459, Singapore
- Nanyang Environment and Water Research Institute, Interdisciplinary Graduate Programme, Nanyang Technological University, 637141, Singapore
- Environmental Chemistry and Materials Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, CleanTech One, 637141, Singapore
| | - Yen Nan Liang
- Environmental Chemistry and Materials Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, CleanTech One, 637141, Singapore
| | - Xiao Hu
- Environmental Chemistry and Materials Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, CleanTech One, 637141, Singapore
- School of Materials Science & Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Rong Xu
- School of Chemical & Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, 637459, Singapore
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Roy D, Neogi S, De S. Multicomponent transport model-based scaling up of long-term fixed bed adsorption of reactive dyes from textile effluent using aminated PAN beads. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:43483-43506. [PMID: 33835343 DOI: 10.1007/s11356-021-13661-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 03/23/2021] [Indexed: 06/12/2023]
Abstract
Novel functionalized polymeric beads have been prepared by a simple phase inversion technique and its potential as an effective sorbent for reactive dyes is studied. Polyacrylonitrile was used as the base polymer for the beads that were further functionalized using diethylenetriamine. Scanning electron microscopy, FTIR spectroscopy, BET technique, TGA analysis, and zeta potential measurement were used for characterization of the functionalized beads. The adsorption characteristics of the beads were analyzed through adsorption isotherms. A first-principle-based pore diffusion-adsorption model was employed to study adsorption process of the functionalized beads and to determine various mass transfer parameters, i.e., mass transfer coefficient and effective pore diffusivity, in both single and multicomponent cases. For different reactive dyes, the beads have adsorption capacities in the range of 170-230 mg/g. Effects of different operating parameters, i.e., inlet concentration of solute, influent rate, and bed depth were studied to determine the breakthrough performance of the columns prepared with the beads. Industrial dye effluent, containing four reactive dyes at different initial concentrations, was used to study multicomponent adsorption in the columns. The regeneration efficiency of the beads was determined using aqueous cationic surfactant solution. Finally, scaling up of the fixed bed columns was carried out using a first principle-based transport model based on pore diffusion-adsorption processes.
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Affiliation(s)
- Debashis Roy
- Department of Chemical Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Sudarsan Neogi
- Department of Chemical Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Sirshendu De
- Department of Chemical Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India.
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Safavi-Mirmahalleh SA, Salami-Kalajahi M, Roghani-Mamaqani H. Adsorption kinetics of methyl orange from water by pH-sensitive poly(2-(dimethylamino)ethyl methacrylate)/nanocrystalline cellulose hydrogels. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:28091-28103. [PMID: 32405949 DOI: 10.1007/s11356-020-09127-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Accepted: 04/29/2020] [Indexed: 06/11/2023]
Abstract
A series of hydrogel nanocomposites was fabricated by in situ polymerization of 2-(dimethylamino)ethyl methacrylate (DMAEMA) in presence of different amounts of (amine- and alkyl-modified) nanocrystalline cellulose (NCC). Modification and nanocomposites properties were proved by different analysis methods such as Fourier-transform infrared spectroscopy (FT-IR), dynamic light scattering (DLS), and field emission scanning electron microscopy (FE-SEM). The new hydrogel nanocomposites were applied for removing methyl orange (MO) used as anionic dye and presented in process water at different pH values. The effects of the fabrication process such as modification and content of NCC, contact time, and pH value on swelling ratio (SR), and equilibrium adsorption kinetics were studied. Results showed that the swelling ratio of PDMAEMA-based nanocomposites varied with the different types of nanoparticles showing the significant effect of the modification process. The MO adsorption into the hydrogel nanocomposites was affected by intermolecular and electrostatic interactions between functional groups of hydrogel and dye. The adsorption capacity decreased at high pH value, and it was significantly affected type of nanoparticles introduced into the hydrogel network. The addition of unmodified NCC did not affect adsorption kinetics significantly. Finally, adsorption kinetics was investigated by pseudo-first-order, pseudo-second-order and intraparticle diffusion models where pseudo-first-order model showed the best correlation with experimental results.
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Affiliation(s)
- Seyedeh-Arefeh Safavi-Mirmahalleh
- Faculty of Polymer Engineering, Sahand University of Technology, P.O. Box 51335-1996, Tabriz, Iran
- Institute of Polymeric Materials, Sahand University of Technology, P.O. Box 51335-1996, Tabriz, Iran
| | - Mehdi Salami-Kalajahi
- Faculty of Polymer Engineering, Sahand University of Technology, P.O. Box 51335-1996, Tabriz, Iran.
- Institute of Polymeric Materials, Sahand University of Technology, P.O. Box 51335-1996, Tabriz, Iran.
| | - Hossein Roghani-Mamaqani
- Faculty of Polymer Engineering, Sahand University of Technology, P.O. Box 51335-1996, Tabriz, Iran.
- Institute of Polymeric Materials, Sahand University of Technology, P.O. Box 51335-1996, Tabriz, Iran.
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Ma L, Liang J, Liu Y, Zhang Y, Ma P, Pan Z, Jiang W. Production of a bioflocculant from Enterobacter sp. P3 using brewery wastewater as substrate and its application in fracturing flowback water treatment. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:18242-18253. [PMID: 32180144 DOI: 10.1007/s11356-020-08245-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Accepted: 02/25/2020] [Indexed: 06/10/2023]
Abstract
A novel bioflocculant (BW-P3) was produced by a strain of Enterobacter sp. P3 using brewery wastewater as substrate and was further applied to remove the colored substance of fracturing flowback water. The optimum conditions for bioflocculant production were specified by the response surface methodology as COD of brewery wastewater 1487.77 mg/L, glucose 8.94 g/L and initial pH 7.09, under which a bioflocculant yield of 1.274 g/L could be reached. The BW-P3 consists of 79.12% polysaccharides and 15.63% protein. Results show that BW-P3 has a high molecular weight (921 kDa) and contains functional groups (hydroxyl, amino, carbonyl, and acylamino) that likely contribute to flocculation. When using the BW-P3 to flocculate fracturing flowback water, the optimal dosage was 1 g/L BW-P3 with addition of 100 mg/L polymeric aluminum chloride as coagulant aid, and treated under 50 °C at pH 7. Under the optimal condition, the removal rates of chroma and suspended solids (SS) of the fracturing flowback water could reach 85% and 52%, respectively.
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Affiliation(s)
- Lili Ma
- National postdoctoral research station, Haitian Water Group Co., Ltd., Chengdu, 610041, People's Republic of China
- Department of Environmental Science and Engineering, College of Architecture and Environment, Sichuan University, Chengdu, 610065, People's Republic of China
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, 610500, People's Republic of China
| | - Jingjing Liang
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, 610500, People's Republic of China
| | - Yucheng Liu
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, 610500, People's Republic of China
- Research Institute of Industrial Hazardous Waste Disposal and Resource Utilization, Southwest Petroleum University, Chengdu, 610500, People's Republic of China
| | - Yirong Zhang
- China Petroloil Production Plant No.7, Changqing Oilfield Company, Changqing, Xi'an, 710200, People's Republic of China
| | - Pengchao Ma
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, 610500, People's Republic of China
| | - Zhicheng Pan
- National postdoctoral research station, Haitian Water Group Co., Ltd., Chengdu, 610041, People's Republic of China.
| | - Wenju Jiang
- Department of Environmental Science and Engineering, College of Architecture and Environment, Sichuan University, Chengdu, 610065, People's Republic of China
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Balea A, Fuente E, Monte MC, Merayo N, Campano C, Negro C, Blanco A. Industrial Application of Nanocelluloses in Papermaking: A Review of Challenges, Technical Solutions, and Market Perspectives. Molecules 2020; 25:molecules25030526. [PMID: 31991802 PMCID: PMC7037648 DOI: 10.3390/molecules25030526] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 01/21/2020] [Accepted: 01/23/2020] [Indexed: 01/09/2023] Open
Abstract
Nanocelluloses (NC) increase mechanical and barrier paper properties allowing the use of paper in applications actually covered by other materials. Despite the exponential increase of information, NC have not been fully implemented in papermaking yet, due to the challenges of using NC. This paper provides a review of the main new findings and emerging possibilities in this field by focusing mainly on: (i) Decoupling the effects of NC on wet-end and paper properties by using synergies with retention aids, chemical modification, or filler preflocculation; (ii) challenges and solutions related to the incorporation of NC in the pulp suspension and its effects on barrier properties; and (iii) characterization needs of NC at an industrial scale. The paper also includes the market perspectives. It is concluded that to solve these challenges specific solutions are required for each paper product and process, being the wet-end optimization the key to decouple NC effects on drainage and paper properties. Furthermore, the effect of NC on recyclability must also be taken into account to reach a compromise solution. This review helps readers find upscale options for using NC in papermaking and identify further research needs within this field.
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Affiliation(s)
- Ana Balea
- Department of Chemical Engineering and Materials, Universidad Complutense de Madrid (UCM), Av. Complutense s/n, 28040 Madrid, Spain; (A.B.); (E.F.); (M.C.M.); (N.M.); (C.C.); (C.N.)
| | - Elena Fuente
- Department of Chemical Engineering and Materials, Universidad Complutense de Madrid (UCM), Av. Complutense s/n, 28040 Madrid, Spain; (A.B.); (E.F.); (M.C.M.); (N.M.); (C.C.); (C.N.)
| | - M. Concepcion Monte
- Department of Chemical Engineering and Materials, Universidad Complutense de Madrid (UCM), Av. Complutense s/n, 28040 Madrid, Spain; (A.B.); (E.F.); (M.C.M.); (N.M.); (C.C.); (C.N.)
| | - Noemi Merayo
- Department of Chemical Engineering and Materials, Universidad Complutense de Madrid (UCM), Av. Complutense s/n, 28040 Madrid, Spain; (A.B.); (E.F.); (M.C.M.); (N.M.); (C.C.); (C.N.)
- Department of Mechanical, Chemical and Industrial Design Engineering, ETSIDI, Universidad Politécnica de Madrid (UPM), Ronda de Valencia 3, 28012 Madrid, Spain
| | - Cristina Campano
- Department of Chemical Engineering and Materials, Universidad Complutense de Madrid (UCM), Av. Complutense s/n, 28040 Madrid, Spain; (A.B.); (E.F.); (M.C.M.); (N.M.); (C.C.); (C.N.)
| | - Carlos Negro
- Department of Chemical Engineering and Materials, Universidad Complutense de Madrid (UCM), Av. Complutense s/n, 28040 Madrid, Spain; (A.B.); (E.F.); (M.C.M.); (N.M.); (C.C.); (C.N.)
| | - Angeles Blanco
- Department of Chemical Engineering and Materials, Universidad Complutense de Madrid (UCM), Av. Complutense s/n, 28040 Madrid, Spain; (A.B.); (E.F.); (M.C.M.); (N.M.); (C.C.); (C.N.)
- Correspondence: ; Tel.: +34-91-394-4247
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11
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Characterizing highly fibrillated nanocellulose by modifying the gel point methodology. Carbohydr Polym 2020; 227:115340. [DOI: 10.1016/j.carbpol.2019.115340] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 09/09/2019] [Accepted: 09/15/2019] [Indexed: 11/17/2022]
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12
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Yu X, Huang X, Bai C, Xiong X. Modification of microcrystalline cellulose with acrylamide under microwave irradiation and its application as flocculant. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:32859-32865. [PMID: 31502053 DOI: 10.1007/s11356-019-06317-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Accepted: 08/26/2019] [Indexed: 05/14/2023]
Abstract
Grafting polyacrylamide (PAM) chains onto microparticles may combine the advantages of the flocculation property of the former and the fast sedimentation of the later to realize better flocculation performance. In this work, inexpensive microcrystalline cellulose (MCC) microparticles, and monomer of acrylamide (AM) were mixed, and then irradiated under microwave. The obtained material was characterized by Fourier transform infrared spectroscopy and X-ray diffraction, and the results demonstrated successful modification of MCC with AM on the particle surface. The modification procedure has been carefully investigated to obtain an optimum preparation condition. Kaolin suspension was selected as a model to evaluate the flocculation properties of the obtained AM-MCC. Our results indicate that the AM-MCC with the highest grafting ratio of 95.5% exhibits the best flocculation performance, which is even better than that of PAM, and the turbidity can be decreased to 1.4% of the naked kaolin suspension within 2.5 min. Therefore, this work provides a low cost strategy to prepare biodegradable AM-MCC, which may have promising potential application in the water treatment and other fields.
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Affiliation(s)
- Xiuling Yu
- Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen, 361005, China
| | - Xuejiao Huang
- Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen, 361005, China
| | - Changzhuang Bai
- Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen, 361005, China
| | - Xiaopeng Xiong
- Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen, 361005, China.
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Divriklioglu M, Akar ST, Akar T. A passively immobilized novel biomagsorbent for the effective biosorptive treatment of dye contamination. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:25834-25843. [PMID: 31270772 DOI: 10.1007/s11356-019-05716-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Accepted: 06/07/2019] [Indexed: 06/09/2023]
Abstract
A new magnetic bio-based composite was designed by the magnetic modification of passively immobilized fungal cells. It was utilized for biosorptive decolorization of reactive dye-contaminated aquatic media. As a greener option, waste tea leaf tissues were used for the first time as an immobilization matrix for microbial cells. Immobilized magnetic cells (biomagsorbent) could be effectively used in both batch and dynamic flow mode treatment processes and real environmental application. Rapid equilibrium and high decolorization yields were observed for the target dye (reactive violet 1). The temperature did not significantly affect the process. Langmuir and the pseudo-second-order models could be better used to fit the process equilibrium and kinetics, respectively. Maximum monolayer sorption capacity was 152.88 mg g-1. High biosorption and desorption yields for 50 consecutive dynamic flow decolorization cycles were recorded as striking results. The breakthrough time was 3420 min. Simulated and industrial water treatment performance of biomagsorbent was found to be more than 90%. The mechanism was evaluated by IR and zeta potential analysis. The magnetic character of the sorbent provided good mechanical durability, easy separation, and excellent regeneration ability. Consequently, this work provides new insight into scalar enhancement of water treatment.
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Affiliation(s)
- Melike Divriklioglu
- Department of Chemistry, Graduate School of Natural and Applied Sciences, Eskişehir Osmangazi University, 26480, Eskişehir, Turkey
- Department of Medical Services and Techniques, İzmir Kavram Vocational School, Çengelkoy, Üsküdar, 34680, İstanbul, Turkey
| | - Sibel Tunali Akar
- Department of Chemistry, Faculty of Arts and Science, Eskişehir Osmangazi University, 26480, Eskişehir, Turkey
| | - Tamer Akar
- Department of Chemistry, Faculty of Arts and Science, Eskişehir Osmangazi University, 26480, Eskişehir, Turkey.
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15
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Balea A, Fuente E, Blanco A, Negro C. Nanocelluloses: Natural-Based Materials for Fiber-Reinforced Cement Composites. A Critical Review. Polymers (Basel) 2019; 11:polym11030518. [PMID: 30960502 PMCID: PMC6473712 DOI: 10.3390/polym11030518] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 03/13/2019] [Accepted: 03/15/2019] [Indexed: 01/19/2023] Open
Abstract
Nanocelluloses (NCs) are bio-based nano-structurated products that open up new solutions for natural material sciences. Although a high number of papers have described their production, properties, and potential applications in multiple industrial sectors, no review to date has focused on their possible use in cementitious composites, which is the aim of this review. It describes how they could be applied in the manufacturing process as a raw material or an additive. NCs improve mechanical properties (internal bonding strength, modulus of elasticity (MOE), and modulus of rupture (MOR)), alter the rheology of the cement paste, and affect the physical properties of cements/cementitious composites. Additionally, the interactions between NCs and the other components of the fiber cement matrix are analyzed. The final result depends on many factors, such as the NC type, the dosage addition mode, the dispersion, the matrix type, and the curing process. However, all of these factors have not been studied in full so far. This review has also identified a number of unexplored areas of great potential for future research in relation to NC applications for fiber-reinforced cement composites, which will include their use as a surface treatment agent, an anionic flocculant, or an additive for wastewater treatment. Although NCs remain expensive, the market perspective is very promising.
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Affiliation(s)
- Ana Balea
- Department of Chemical Engineering and Materials, University Complutense of Madrid, Av. Complutense s/n, 28040 Madrid, Spain.
| | - Elena Fuente
- Department of Chemical Engineering and Materials, University Complutense of Madrid, Av. Complutense s/n, 28040 Madrid, Spain.
| | - Angeles Blanco
- Department of Chemical Engineering and Materials, University Complutense of Madrid, Av. Complutense s/n, 28040 Madrid, Spain.
| | - Carlos Negro
- Department of Chemical Engineering and Materials, University Complutense of Madrid, Av. Complutense s/n, 28040 Madrid, Spain.
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Sanchez-Salvador JL, Balea A, Monte MC, Blanco A, Negro C. Study of The Reaction Mechanism to Produce Nanocellulose-Graft-Chitosan Polymer. NANOMATERIALS (BASEL, SWITZERLAND) 2018; 8:E883. [PMID: 30380728 PMCID: PMC6266731 DOI: 10.3390/nano8110883] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 10/11/2018] [Accepted: 10/29/2018] [Indexed: 11/16/2022]
Abstract
Cellulose and chitin are the most abundant polymeric materials in nature, capable of replacing conventional synthetic polymers. From them, cellulose nano/microfibers (CNFs/CMFs) and chitosan are obtained. Both polymers have been used separately in graft copolymerization but there are not many studies on the use of cellulose and chitosan together as copolymers and the reaction mechanism is unknown. In this work, the reaction mechanism to produce nano/microcellulose-graft-chitosan polymer has been studied. Recycled cellulose pulp was used, with and without a 2,2,6,6-tetramethylpiperidin-1-oxyl-radical (TEMPO)-mediated oxidation pretreatment, to produce CNFs and CMFs, respectively. For chitosan, a low-molecular weight product dissolved in an acetic acid solution was prepared. Grafted polymers were synthesized using a microwave digester. Results showed that TEMPO-mediated oxidation as the cellulose pretreatment is a key factor to obtain the grafted polymer CNF-g-CH. A reaction mechanism has been proposed where the amino group of chitosan attacks the carboxylic group of oxidized cellulose, since non-oxidized CMFs do not achieve the desired grafting. 13C NMR spectra, elemental analysis and SEM images validated the proposed mechanism. Finally, CNF-g-CH was used as a promising material to remove water-based inks and dyes from wastewater.
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Affiliation(s)
- Jose Luis Sanchez-Salvador
- Department of Chemical Engineering and Materials, Universidad Complutense de Madrid, Av. Complutense s/n, 28040 Madrid, Spain.
| | - Ana Balea
- Department of Chemical Engineering and Materials, Universidad Complutense de Madrid, Av. Complutense s/n, 28040 Madrid, Spain.
| | - M Concepcion Monte
- Department of Chemical Engineering and Materials, Universidad Complutense de Madrid, Av. Complutense s/n, 28040 Madrid, Spain.
| | - Angeles Blanco
- Department of Chemical Engineering and Materials, Universidad Complutense de Madrid, Av. Complutense s/n, 28040 Madrid, Spain.
| | - Carlos Negro
- Department of Chemical Engineering and Materials, Universidad Complutense de Madrid, Av. Complutense s/n, 28040 Madrid, Spain.
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