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Abdullah NH, Mohamed M, Mohd Shohaimi NA, Mat Lazim A, Abdul Halim AZ, Mohd Shukri N, Abdul Razab MKA. Enhancing the Decolorization of Methylene Blue Using a Low-Cost Super-Absorbent Aided by Response Surface Methodology. Molecules 2021; 26:4430. [PMID: 34361580 PMCID: PMC8348692 DOI: 10.3390/molecules26154430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Revised: 07/13/2021] [Accepted: 07/13/2021] [Indexed: 11/17/2022] Open
Abstract
The presence of organic dyes from industrial wastewater can cause pollution and exacerbate environmental problems; therefore, in the present work, activated carbon was synthesized from locally available oil palm trunk (OPT) biomass as a low-cost adsorbent to remove synthetic dye from aqueous media. The physical properties of the synthesized oil palm trunk activated carbon (OPTAC) were analyzed by SEM, FTIR-ATR, and XRD. The concurrent effects of the process variables (adsorbent dosage (g), methylene blue (MB) concentration (mg/L), and contact time (h)) on the MB removal percentage from aqueous solution were studied using a three-factor three-level Box-Behnken design (BBD) of response surface methodology (RSM), followed by the optimization of MB adsorption using OPTAC as the adsorbent. Based on the results of the analysis of variance (ANOVA) for the three parameters considered, adsorbent dosage (X1) is the most crucial parameter, with an F-value of 1857.43, followed by MB concentration (X2) and contact time (X3) with the F-values of 95.60 and 29.48, respectively. Furthermore, the highest MB removal efficiency of 97.9% was achieved at the optimum X1, X2, and X3 of 1.5 g, 200 mg/L, and 2 h, respectively.
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Affiliation(s)
- Nor Hakimin Abdullah
- Advanced Materials Research Cluster (AMRC), Faculty of Bioengineering and Technology, Universiti Malaysia Kelantan (UMK), Jeli 17600, Kelantan, Malaysia;
| | - Mazlan Mohamed
- Advanced Materials Research Cluster (AMRC), Faculty of Bioengineering and Technology, Universiti Malaysia Kelantan (UMK), Jeli 17600, Kelantan, Malaysia;
| | | | - Azwan Mat Lazim
- Department of Chemical Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia;
| | - Ahmad Zamani Abdul Halim
- Faculty of Industrial Sciences and Technology, College of Computing and Applied Science, Universiti Malaysia Pahang, Gambang, Kuantan 26300, Pahang, Malaysia;
| | - Nurasmat Mohd Shukri
- School of Health Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia;
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52
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Diversity of Synthetic Dyes from Textile Industries, Discharge Impacts and Treatment Methods. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11146255] [Citation(s) in RCA: 112] [Impact Index Per Article: 37.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Natural dyes have been used from ancient times for multiple purposes, most importantly in the field of textile dying. The increasing demand and excessive costs of natural dye extraction engendered the discovery of synthetic dyes from petrochemical compounds. Nowadays, they are dominating the textile market, with nearly 8 × 105 tons produced per year due to their wide range of color pigments and consistent coloration. Textile industries consume huge amounts of water in the dyeing processes, making it hard to treat the enormous quantities of this hazardous wastewater. Thus, they have harmful impacts when discharged in non-treated or partially treated forms in the environment (air, soil, plants and water), causing several human diseases. In the present work we focused on synthetic dyes. We started by studying their classification which depended on the nature of the manufactured fiber (cellulose, protein and synthetic fiber dyes). Then, we mentioned the characteristics of synthetic dyes, however, we focused more on their negative impacts on the ecosystem (soil, plants, water and air) and on humans. Lastly, we discussed the applied physical, chemical and biological strategies solely or in combination for textile dye wastewater treatments. Additionally, we described the newly established nanotechnology which achieves complete discharge decontamination.
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53
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Preparation of Pd–Ni Nanoparticles Supported on Activated Carbon for Efficient Removal of Basic Blue 3 from Water. WATER 2021. [DOI: 10.3390/w13091211] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Pd–Ni nanoparticles supported on activated carbon (Pd–Ni/AC) were prepared using a phase transfer method. The purpose of synthesizing ternary composites was to enhance the surface area of synthesized Pd–Ni nanoparticles, as they have a low surface area. The resulting composite was characterized by scanning electronic microscopy (SEM), X-ray diffraction (XRD) and energy-dispersive X-ray spectroscopy (EDX) for investigating its surface morphology, particle size, percentage of crystallinity and elemental composition, respectively. The XRD data and EDX analysis revealed the presence of Pd–Ni alloys impregnated on the AC. Pd–Ni/AC was used as an adsorbent for the removal of the azo dye basic blue 3 from an aqueous medium. Kinetic and isotherm models were used to calculate the adsorption parameters. The most suitable kinetic model amongst the applied models was the pseudo-second-order model, confirming the chemisorption characteristics of the process, and the most suitable isotherm model was the Langmuir model, with a maximum adsorption capacity of 333 mg/g at 333 K. Different experimental parameters, such as the adsorbent dosage, pH, temperature and contact time, were optimized. The optimum parameters reached were: a pH of 12, temperature of 333 K, adsorbent dosage of 0.01 g and optimum contact time of 30 min. Moreover, the thermodynamics parameters of adsorption, such as Gibbs free energy (ΔG°), enthalpy (ΔH°) and entropy (ΔS°), showed the adsorption processes being exothermic with values of ΔH° equal to −6.206 kJ/mol and being spontaneous with ΔG° values of −13.297, −13.780 and −14.264 kJ/mol, respectively at 293, 313 and 333 K. An increase in entropy change (ΔS°) with a value of 0.0242 kJ/mol K, indicated the enhanced disorder at a solid–solution interface during the adsorption process. Recycling the adsorbent for six cycles with sodium hydroxide and ethanol showed a decline in the efficiency of the selected azo dye basic blue 3 up to 79%. The prepared ternary composite was found effective in the removal of the selected dye. The removal of other pollutants represents one of the possible future uses of the prepared adsorbent, but further experiments are required.
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Engineering Iron Oxide Nanocatalysts by a Microwave-Assisted Polyol Method for the Magnetically Induced Degradation of Organic Pollutants. NANOMATERIALS 2021; 11:nano11041052. [PMID: 33924017 PMCID: PMC8072590 DOI: 10.3390/nano11041052] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 04/16/2021] [Accepted: 04/18/2021] [Indexed: 12/19/2022]
Abstract
Advanced oxidation processes constitute a promising alternative for the treatment of wastewater containing organic pollutants. Still, the lack of cost-effective processes has hampered the widespread use of these methodologies. Iron oxide magnetic nanoparticles stand as a great alternative since they can be engineered by different reproducible and scalable methods. The present study consists of the synthesis of single-core and multicore magnetic iron oxide nanoparticles by the microwave-assisted polyol method and their use as self-heating catalysts for the degradation of an anionic (acid orange 8) and a cationic dye (methylene blue). Decolorization of these dyes was successfully improved by subjecting the catalyst to an alternating magnetic field (AMF, 16 kA/m, 200 kHz). The sudden temperature increase at the surface of the catalyst led to an intensification of 10% in the decolorization yields using 1 g/L of catalyst, 0.3 M H2O2 and 500 ppm of dye. Full decolorization was achieved at 90 °C, but iron leaching (40 ppm) was detected at this temperature leading to a homogeneous Fenton process. Multicore nanoparticles showed higher degradation rates and 100% efficiencies in four reusability cycles under the AMF. The improvement of this process with AMF is a step forward into more sustainable remediation techniques.
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55
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Bagotia N, Sharma AK, Kumar S. A review on modified sugarcane bagasse biosorbent for removal of dyes. CHEMOSPHERE 2021; 268:129309. [PMID: 33352516 DOI: 10.1016/j.chemosphere.2020.129309] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 12/09/2020] [Accepted: 12/11/2020] [Indexed: 06/12/2023]
Abstract
This review provides an important insight on using Sugarcane Bagasse (SB) biosorbent in raw and modified form for removal of dyes from wastewater. Various methods of activation and modification of SB like physical, chemical, biological, composite formation and grafting were explored. Beside this, effect of different optimization conditions like adsorbent dosage, initial dye concentration, pH, temperature and contact time on the adsorption process were studied. Also, regeneration of dye loaded SB, the challenges and perspectives for future researches on waste-derived adsorbents were studied.
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Affiliation(s)
- Nisha Bagotia
- Department of Chemistry, Chaudhary Bansi Lal University, 127021, Bhiwani, Haryana, India.
| | - Ashok Kumar Sharma
- Department of Chemistry, Deenbandhu Chhotu Ram University of Science and Technology, Murthal, Sonipat, Haryana, 131039, India.
| | - Surender Kumar
- Department of Chemistry, Chaudhary Bansi Lal University, 127021, Bhiwani, Haryana, India.
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Lakkaboyana SK, Soontarapa K, Asmel NK, Kumar V, Marella RK, Yuzir A, Wan Yaacob WZ. Synthesis and characterization of Cu(OH) 2-NWs-PVA-AC Nano-composite and its use as an efficient adsorbent for removal of methylene blue. Sci Rep 2021; 11:5686. [PMID: 33707529 PMCID: PMC7970965 DOI: 10.1038/s41598-021-84797-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Accepted: 02/13/2021] [Indexed: 01/21/2023] Open
Abstract
The present study focused on the synthesis of copper hydroxide nanowires decorated on activated carbon (Cu(OH)2-NWs-PVA-AC). The obtained Cu(OH)2-NWs-PVA-AC Nano-composite was distinguished by XRD, SEM, EDX, BET, FTIR and XPS respectively. Besides, different variables such as solution pH, and initial dye concentration, contact time, and temperature were performed on the adsorption efficiency of MB in a small batch reactor. Further, the experimental results are analyzed by various kinetic models via PFO, PSO, intra-particle diffusion and Elovich models, and the results revealed that among the kinetic models, PSO shows more suitability. In addition, different adsorption isotherms were applied to the obtained experimental data and found that Langmuir-Freundlich and Langmuir isotherm were best fits with the maximum adsorption capacity of 139.9 and 107.6 mg/g, respectively. The Nano-composite has outstanding MB removal efficiency of 94-98.5% with a span of 10 min. and decent adsorption of about 98.5% at a pH of 10. Thermodynamic constants like Gibbs free energy, entropy, and enthalpy were analyzed from the temperature reliance. The results reveal the adsorption processes are spontaneous and exothermic in nature. The high negative value of ΔG° (- 44.11 to - 48.86 kJ/mol) and a low negative value of ΔH° (- 28.96 kJ/mol) show the feasibility and exothermic nature of the adsorption process. The synthesized dye was found to be an efficient adsorbent for the potential removal of cationic dye (methylene blue) from wastewater within a short time.
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Affiliation(s)
- Sivarama Krishna Lakkaboyana
- Department of Chemical Technology, Faculty of Sciences, Chulalongkorn University, Pathumwan, Bangkok, 10330, Thailand.
- Center of Excellence on Petrochemical and Materials Technology, Chulalongkorn University, Pathumwan, Bangkok, 10330, Thailand.
| | - Khantong Soontarapa
- Department of Chemical Technology, Faculty of Sciences, Chulalongkorn University, Pathumwan, Bangkok, 10330, Thailand.
- Center of Excellence on Petrochemical and Materials Technology, Chulalongkorn University, Pathumwan, Bangkok, 10330, Thailand.
| | - Nabel Kalel Asmel
- Building and Construction Technology Engineering, Northern Technical University, 41002, Mosul, Iraq
| | - Vinay Kumar
- Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, 247667, India
| | - Ravi Kumar Marella
- Department of Chemistry (H & S), PACE Institute of Technology & Sciences, Ongole, Andhra Pradesh, 523001, India
| | - Ali Yuzir
- Department of Environmental Engineering and Green Technology (EGT), MJIIT- Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, 54100, Kuala Lumpur, Malaysia
| | - Wan Zuhairi Wan Yaacob
- Geology Program, School of Environmental Science and Natural Resources, FST, University Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia
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Demissie H, An G, Jiao R, Ritigala T, Lu S, Wang D. Modification of high content nanocluster-based coagulation for rapid removal of dye from water and the mechanism. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.117845] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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58
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Agboola O, Fayomi OSI, Ayodeji A, Ayeni AO, Alagbe EE, Sanni SE, Okoro EE, Moropeng L, Sadiku R, Kupolati KW, Oni BA. A Review on Polymer Nanocomposites and Their Effective Applications in Membranes and Adsorbents for Water Treatment and Gas Separation. MEMBRANES 2021; 11:139. [PMID: 33669424 PMCID: PMC7920412 DOI: 10.3390/membranes11020139] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 12/22/2020] [Accepted: 01/04/2021] [Indexed: 11/16/2022]
Abstract
Globally, environmental challenges have been recognised as a matter of concern. Among these challenges are the reduced availability and quality of drinking water, and greenhouse gases that give rise to change in climate by entrapping heat, which result in respirational illness from smog and air pollution. Globally, the rate of demand for the use of freshwater has outgrown the rate of population increase; as the rapid growth in town and cities place a huge pressure on neighbouring water resources. Besides, the rapid growth in anthropogenic activities, such as the generation of energy and its conveyance, release carbon dioxide and other greenhouse gases, warming the planet. Polymer nanocomposite has played a significant role in finding solutions to current environmental problems. It has found interest due to its high potential for the reduction of gas emission, and elimination of pollutants, heavy metals, dyes, and oil in wastewater. The revolution of integrating developed novel nanomaterials such as nanoparticles, carbon nanotubes, nanofibers and activated carbon, in polymers, have instigated revitalizing and favourable inventive nanotechnologies for the treatment of wastewater and gas separation. This review discusses the effective employment of polymer nanocomposites for environmental utilizations. Polymer nanocomposite membranes for wastewater treatment and gas separation were reviewed together with their mechanisms. The use of polymer nanocomposites as an adsorbent for toxic metals ions removal and an adsorbent for dye removal were also discussed, together with the mechanism of the adsorption process. Patents in the utilization of innovative polymeric nanocomposite membranes for environmental utilizations were discussed.
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Affiliation(s)
- Oluranti Agboola
- Department of Chemical Engineering, Covenant University, Ota PMB 1023, Nigeria; (A.A.); (A.O.A.); (E.E.A.); (S.E.S.)
| | | | - Ayoola Ayodeji
- Department of Chemical Engineering, Covenant University, Ota PMB 1023, Nigeria; (A.A.); (A.O.A.); (E.E.A.); (S.E.S.)
| | - Augustine Omoniyi Ayeni
- Department of Chemical Engineering, Covenant University, Ota PMB 1023, Nigeria; (A.A.); (A.O.A.); (E.E.A.); (S.E.S.)
| | - Edith E. Alagbe
- Department of Chemical Engineering, Covenant University, Ota PMB 1023, Nigeria; (A.A.); (A.O.A.); (E.E.A.); (S.E.S.)
| | - Samuel E. Sanni
- Department of Chemical Engineering, Covenant University, Ota PMB 1023, Nigeria; (A.A.); (A.O.A.); (E.E.A.); (S.E.S.)
| | - Emmanuel E. Okoro
- Department of Petroleum Engineering, Covenant University, Ota PMB 1023, Nigeria;
| | - Lucey Moropeng
- Department of Chemical, Metallurgical and Materials Engineering, Tshwane University of Technology, Private Bag X680, Pretoria 0001, South Africa; (L.M.); (R.S.)
| | - Rotimi Sadiku
- Department of Chemical, Metallurgical and Materials Engineering, Tshwane University of Technology, Private Bag X680, Pretoria 0001, South Africa; (L.M.); (R.S.)
| | - Kehinde Williams Kupolati
- Department of Civil Engineering, Tshwane University of Technology, Private Bag X680, Pretoria 0001, South Africa;
| | - Babalola Aisosa Oni
- Department of Chemical Engineering and Technology, China University of Petroleum, Beijing 102249, China;
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59
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Trichoderma Biomass as an Alternative for Removal of Congo Red and Malachite Green Industrial Dyes. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11010448] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The present study evaluated the removal efficiency of two dyes, Congo red (CR) and malachite green (MG), using either fresh or dry fungal biomass of two species of Trichoderma (T. virens and T. viride) and activated carbon. After 24 h, the CR removal efficiency obtained with fresh biomass was higher than that obtained with activated carbon. For the MG dye, the average removal with activated carbon (99%) was higher than those obtained with dry and fresh biomass of T. viride and T. virens. Experimental results for fresh and dry fungal biomass showed a good correlation with Langmuir isotherms. The adsorption rates of CR and MG by of T. virens and T. viride can be more appropriately described using the pseudo-second-order rate. We found an adsorption capacity of 81.82 mg g−1 for T. virens with MG dye. Results show that fresh or dry biomass of T. virens can represent a simple and cost-effective alternative for removing industrial dyes such as CR and MG.
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60
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Karami M, Ghanbari M, Alshamsi HA, Rashki S, Salavati-Niasari M. Facile fabrication of Tl4HgI6 nanostructures as novel antibacterial and antibiofilm agents and photocatalysts in the degradation of organic pollutants. Inorg Chem Front 2021. [DOI: 10.1039/d1qi00155h] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Nano-Tl4HgI6 was fabricated via a co-precipitation route. It showed efficient antibacterial activity against Gram-negative and Gram-positive bacteria. Its photocatalytic activity indicated the highest degradation for RhB of around 78%.
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Affiliation(s)
- Maryam Karami
- Institute of Nano Science and Nano Technology
- University of Kashan
- I. R. Iran
| | - Mojgan Ghanbari
- Institute of Nano Science and Nano Technology
- University of Kashan
- I. R. Iran
| | - Hassan Abbas Alshamsi
- Department of Chemistry
- College of Education
- University of Al-Qadisiyah
- Diwaniya 1753
- Iraq
| | - Somaye Rashki
- Department of Microbiology and Immunology
- School of Medicine
- Kashan University of Medical Sciences
- Kashan
- Iran
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61
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Kıvanç MR, Ozay O, Ozay H, Ilgin P. Removal of anionic dyes from aqueous media by using a novel high positively charged hydrogel with high capacity. J DISPER SCI TECHNOL 2020. [DOI: 10.1080/01932691.2020.1847658] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Mehmet Rıza Kıvanç
- Department of Chemistry, Faculty of Education, Van Yüzüncü Yıl University, Van, Turkey
| | - Ozgur Ozay
- Laboratory of Inorganic Materials, Department of Chemistry, Faculty of Science and Arts, Canakkale Onsekiz Mart University, Canakkale, Turkey
- Department of Bioengineering, Faculty of Engineering, Canakkale Onsekiz Mart University, Canakkale, Turkey
| | - Hava Ozay
- Laboratory of Inorganic Materials, Department of Chemistry, Faculty of Science and Arts, Canakkale Onsekiz Mart University, Canakkale, Turkey
| | - Pinar Ilgin
- Department of Chemistry and Chemical Processing Technologies, Lapseki Vocational School, Canakkale Onsekiz Mart University, Canakkale, Turkey
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Azari A, Nabizadeh R, Mahvi AH, Nasseri S. Integrated Fuzzy AHP-TOPSIS for selecting the best color removal process using carbon-based adsorbent materials: multi-criteria decision making vs. systematic review approaches and modeling of textile wastewater treatment in real conditions. INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY 2020. [DOI: 10.1080/03067319.2020.1828395] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Ali Azari
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Ramin Nabizadeh
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
- Center for Air Pollution Research (CAPR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran
| | - Amir Hossein Mahvi
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Simin Nasseri
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
- Center for Water Quality Research (CWQR), Institute for Environmental Research (IER), Tehran University of Medical Sciences (TUMS), Tehran, Iran
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Cai J, Zhang D, Xu W, Ding WP, Zhu ZZ, He JR, Cheng SY. Polysaccharide-Based Hydrogels Derived from Cellulose: The Architecture Change from Nanofibers to Hydrogels for a Putative Dual Function in Dye Wastewater Treatment. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:9725-9732. [PMID: 32786859 DOI: 10.1021/acs.jafc.0c03054] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Agricultural production-caused water contamination has become an urgent environmental issue that has drawn much attention in recent years. One such contamination case is the environmental disposal of colored effluents from the food processing industry (i.e., food dyes). Effective methods for removing dye contaminants from water have been increasingly sought, and different adsorbents have been developed for this purpose. Here, polysaccharide-based hydrogels derived from cellulose were constructed and used in the removal of methylene blue (MB) (as the representative dye) from an aqueous medium (as simulated dye liquor wastewater). To improve the purification efficiency, TiO2 nanoparticles were encapsulated into cellulose nanofibers, which were consequently changed to hydrogels with respective advantages. The morphology, chemical composition, and structure of the as-prepared polysaccharide-based hydrogels and the transformation process from nanofibers to hydrogels were revealed by scanning electron microscopy, Fourier transform infrared spectroscopy, thermogravimetric analysis, and X-ray diffraction, and the presence of a gel network structure and TiO2 nanoparticles was confirmed. As expected, the polysaccharide-based hydrogels exhibited good MB removal performance because of their synergistic effects of absorption and photocatalytic degradation. Furthermore, the cell cytotoxicity test showed that the polysaccharide-based hydrogels possessed good biocompatibility. The facile, noncytotoxic, and general strategy presented here could be extended to the preparation of other polysaccharide-based hydrogel materials and has good prospects for application in wastewater treatment.
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Affiliation(s)
- Jie Cai
- Key Laboratory for Deep Processing of Major Grain and Oil, Ministry of Education, National R&D Center for Se-rich Agricultural Products Processing, Hubei Key Laboratory for Processing and Transformation of Agricultural Products, Hubei Engineering Research Center for Deep Processing of Green Se-rich Agricultural Products, School of Food Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, P. R. China
| | - Die Zhang
- Key Laboratory for Deep Processing of Major Grain and Oil, Ministry of Education, National R&D Center for Se-rich Agricultural Products Processing, Hubei Key Laboratory for Processing and Transformation of Agricultural Products, Hubei Engineering Research Center for Deep Processing of Green Se-rich Agricultural Products, School of Food Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, P. R. China
| | - Wei Xu
- Key Laboratory for Deep Processing of Major Grain and Oil, Ministry of Education, National R&D Center for Se-rich Agricultural Products Processing, Hubei Key Laboratory for Processing and Transformation of Agricultural Products, Hubei Engineering Research Center for Deep Processing of Green Se-rich Agricultural Products, School of Food Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, P. R. China
| | - Wen-Ping Ding
- Key Laboratory for Deep Processing of Major Grain and Oil, Ministry of Education, National R&D Center for Se-rich Agricultural Products Processing, Hubei Key Laboratory for Processing and Transformation of Agricultural Products, Hubei Engineering Research Center for Deep Processing of Green Se-rich Agricultural Products, School of Food Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, P. R. China
| | - Zhen-Zhou Zhu
- Key Laboratory for Deep Processing of Major Grain and Oil, Ministry of Education, National R&D Center for Se-rich Agricultural Products Processing, Hubei Key Laboratory for Processing and Transformation of Agricultural Products, Hubei Engineering Research Center for Deep Processing of Green Se-rich Agricultural Products, School of Food Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, P. R. China
| | - Jing-Ren He
- Key Laboratory for Deep Processing of Major Grain and Oil, Ministry of Education, National R&D Center for Se-rich Agricultural Products Processing, Hubei Key Laboratory for Processing and Transformation of Agricultural Products, Hubei Engineering Research Center for Deep Processing of Green Se-rich Agricultural Products, School of Food Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, P. R. China
| | - Shui-Yuan Cheng
- Key Laboratory for Deep Processing of Major Grain and Oil, Ministry of Education, National R&D Center for Se-rich Agricultural Products Processing, Hubei Key Laboratory for Processing and Transformation of Agricultural Products, Hubei Engineering Research Center for Deep Processing of Green Se-rich Agricultural Products, School of Food Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, P. R. China
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64
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Homaeigohar S. The Nanosized Dye Adsorbents for Water Treatment. NANOMATERIALS 2020; 10:nano10020295. [PMID: 32050582 PMCID: PMC7075180 DOI: 10.3390/nano10020295] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 02/02/2020] [Accepted: 02/04/2020] [Indexed: 01/14/2023]
Abstract
Clean water is a vital element for survival of any living creature and, thus, crucially important to achieve largely and economically for any nation worldwide. However, the astonishingly fast trend of industrialization and population growth and the arisen extensive water pollutions have challenged access to clean water across the world. In this regard, 1.6 million tons of dyes are annually consumed. Thereof, 10%–15% are wasted during use. To decolorize water streams, there is an urgent need for the advanced remediation approaches involving utilization of novel materials and technologies, which are cost and energy efficient. Nanomaterials, with their outstanding physicochemical properties, can potentially resolve the challenge of need to water treatment in a less energy demanding manner. In this review, a variety of the most recent (from 2015 onwards) opportunities arisen from nanomaterials in different dimensionalities, performances, and compositions for water decolorization is introduced and discussed. The state-of-the-art research studies are presented in a classified manner, particularly based on structural dimensionality, to better illustrate the current status of adsorption-based water decolorization using nanomaterials. Considering the introduction of many newly developed nano-adsorbents and their classification based on the dimensionality factor, which has never been employed for this sake in the related literature, a comprehensive review will be presented.
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Affiliation(s)
- Shahin Homaeigohar
- Nanochemistry and Nanoengineering, Department of Chemistry and Materials Science, School of Chemical Engineering, Aalto University, Kemistintie 1, 00076 Aalto, Finland
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