251
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Liu Y, Liu J, Yang T. Surface Modification of SiC Powder with Sodium Humate: Adsorption Kinetics, Equilibrium, and Mechanism. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:9645-9653. [PMID: 29961334 DOI: 10.1021/acs.langmuir.8b01696] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Highly dispersible SiC powder was prepared using sodium humate as a modifier. The results showed that the ζ-potential absolute value of the modified SiC powder increased from 13.1 to 38.7 mV when the adsorption capacity of sodium humate on the SiC surface was 2.368 mg/g. The slurry with a maximum solid content of 65 vol % was obtained using the modified SiC powder, and the minimum viscosity value was 0.322 Pa s at a solid content of 50 vol %. The adsorption kinetics equation of sodium humate on the SiC surface is t/ q t = 0.6253 t + 11.0472, which is in accordance with the pseudo-second-order kinetics model. In addition, the isotherm equation, ln qe = 0.461 ln Ce - 0.334, agrees with the Freundlich model. The adsorption energy of sodium humate on the SiC surface was 0.8280 kJ/mol, indicating that the adsorption type was physical adsorption.
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Affiliation(s)
- Youxing Liu
- Beijing Key Laboratory of Electrochemical Process and Technology for Materials , Beijing University of Chemical Technology , Beijing 100029 , P. R. China
| | - Jiaxiang Liu
- Beijing Key Laboratory of Electrochemical Process and Technology for Materials , Beijing University of Chemical Technology , Beijing 100029 , P. R. China
| | - Tianyu Yang
- Shandong Qingzhou Micropowder Co. Ltd. , Qingzhou 262500 , Shandong , P. R. China
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252
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Antidiabetic and antiparasitic potentials: Inhibition effects of some natural antioxidant compounds on α-glycosidase, α-amylase and human glutathione S-transferase enzymes. Int J Biol Macromol 2018; 119:741-746. [PMID: 30076927 DOI: 10.1016/j.ijbiomac.2018.08.001] [Citation(s) in RCA: 142] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 07/31/2018] [Accepted: 08/01/2018] [Indexed: 11/20/2022]
Abstract
The glutathione S-transferase (GST) was purified from fresh blood erythrocytes using affinity column chromatography. Also, α-amylase from porcine pancreas and α-glycosidase from Saccharomyces cerevisiae were used as target enzymes. In this study, these compounds were tested on α-amylase, α-glycosidase, and GST enzymes and demonstrated effective inhibitor compounds with Ki values in the range of 8.34-40.78 μM against GST, and 120.53-892.36 nM against α-glycosidase. Additionally, the phenolic molecules were tested for the inhibition of α-amylase enzyme which determined effective inhibition profile with IC50 values in the range of 175.01-626.58 nM. Indeed, these molecules can be elective inhibitors of GST, α-glycosidase and α-amylase enzymes as antidiabetic and antiparasitic agents.
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253
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Mousavi SA, Janjani H. Antibiotics adsorption from aqueous solutions using carbon nanotubes: a systematic review. TOXIN REV 2018. [DOI: 10.1080/15569543.2018.1483405] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Seyyed Alireza Mousavi
- Department of Environmental Health Engineering, Faculty of Health, Kermanshah University of Medical Sciences, Kermanshah, Iran
- Research Center for Environmental Determinants of Health (RCEDH), Faculty of Health, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Hosna Janjani
- Research Center for Environmental Determinants of Health (RCEDH), Kermanshah University of Medical Sciences, Kermanshah, Iran
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254
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Narayanan P, Ravirajan A, Umasankaran A, Prakash DG, Kumar PS. Theoretical and experimental investigation on the removal of oil spill by selective sorbents. J IND ENG CHEM 2018. [DOI: 10.1016/j.jiec.2018.01.031] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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255
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Liu S, Ge H, Wang C, Zou Y, Liu J. Agricultural waste/graphene oxide 3D bio-adsorbent for highly efficient removal of methylene blue from water pollution. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 628-629:959-968. [PMID: 30045584 DOI: 10.1016/j.scitotenv.2018.02.134] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Revised: 01/23/2018] [Accepted: 02/11/2018] [Indexed: 06/08/2023]
Abstract
The objective of this study was to synthesize a novel, efficient and economical bio-adsorbent with three dimensions (3D) structure using a direct assembly method for removal of methylene blue (MB) from aqueous solution. The raw materials were corn straw core (CSC) and graphene oxide (GO). The variables that affected adsorption capacity were tested. GO loading could facilitate the removal rate. When 5wt% GO was added (CSC-5GO), the removal rate was increased by 21.62% compared to pure CSC (64.58%). Furthermore, the adsorption by CSC-5GO fitted pseudo-second-order kinetic model (R2>0.998) and Temkin model (R2>0.955). The maximum adsorption capacity was 414.03mgg-1 for MB at pH=12, 298K and MB concentration of 1000mgL-1. The adsorption thermodynamic test results suggested that the adsorption was a spontaneous, exothermic and randomness decrease process. Furthermore, after five cycles of adsorption-desorption test, the adsorbent removal rate was >90%, which implied that CSC-5GO had an excellent reproducibility.
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Affiliation(s)
- Shanshan Liu
- School of Materials Science and Engineering, University of Jinan, Jinan 250022, People's Republic of China
| | - Heyi Ge
- School of Materials Science and Engineering, University of Jinan, Jinan 250022, People's Republic of China.
| | - Cuicui Wang
- School of Materials Science and Engineering, University of Jinan, Jinan 250022, People's Republic of China
| | - Yu Zou
- School of Materials Science and Engineering, University of Jinan, Jinan 250022, People's Republic of China
| | - Jingyu Liu
- School of Materials Science and Engineering, University of Jinan, Jinan 250022, People's Republic of China
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256
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Titania versus zinc oxide nanoparticles on mesoporous silica supports as photocatalysts for removal of dyes from wastewater at neutral pH. Catal Today 2018. [DOI: 10.1016/j.cattod.2017.05.061] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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257
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Qin R, Hao L, Liu Y, Zhang Y. Polyaniline‐ZnO Hybrid Nanocomposites with Enhanced Photocatalytic and Electrochemical Performance. ChemistrySelect 2018. [DOI: 10.1002/slct.201800246] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Runhua Qin
- School of Materials EngineeringJinling Institute of Technology Hongjing Road 99 211169 Nanjing China
| | - Lingyun Hao
- School of Materials EngineeringJinling Institute of Technology Hongjing Road 99 211169 Nanjing China
- Jiangsu Key Laboratory of Advanced Structural Materials and Application Technology Hongjing Road 1 211167 Nanjing China
| | - Yi Liu
- School of Materials EngineeringJinling Institute of Technology Hongjing Road 99 211169 Nanjing China
| | - Yueling Zhang
- School of Materials EngineeringJinling Institute of Technology Hongjing Road 99 211169 Nanjing China
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258
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Kazemi S, Teimouri A, Salavati H. Developments of modified magnetic nanoparticle-supported heteropolyacid photocatalytic performances in methylene blue scavenger. J CHIN CHEM SOC-TAIP 2018. [DOI: 10.1002/jccs.201700366] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Shahnaz Kazemi
- Department of Chemistry, Faculty of Science; University of Birjand; Birjand Iran
| | - Abbas Teimouri
- Department of Chemistry; Payame Noor University; PO BOX 19395-3697, Tehran Iran
| | - Hossein Salavati
- Department of Chemistry; Payame Noor University; PO BOX 19395-3697, Tehran Iran
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259
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Polyák P, Dohovits E, Nagy GN, Vértessy BG, Vörös G, Pukánszky B. Enzymatic degradation of poly-[(R)-3-hydroxybutyrate]: Mechanism, kinetics, consequences. Int J Biol Macromol 2018; 112:156-162. [DOI: 10.1016/j.ijbiomac.2018.01.104] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 01/10/2018] [Accepted: 01/15/2018] [Indexed: 01/08/2023]
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260
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Enhanced photocatalytic degradation of furfural and a real wastewater using UVC/TiO2 nanoparticles immobilized on white concrete in a fixed-bed reactor. J IND ENG CHEM 2018. [DOI: 10.1016/j.jiec.2018.01.007] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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261
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Nekouei S, Nekouei F, Ferdosi Zadeh MA. Fast and green separation of malachite green in water samples by micro-dispersion scanometry method without heating, cooling and organic solvents at room temperature. Chem Eng Res Des 2018. [DOI: 10.1016/j.cherd.2018.04.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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262
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Dai C, Zhou Y, Peng H, Huang S, Qin P, Zhang J, Yang Y, Luo L, Zhang X. Current progress in remediation of chlorinated volatile organic compounds: A review. J IND ENG CHEM 2018. [DOI: 10.1016/j.jiec.2017.12.049] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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263
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Baharlouei A, Jalilnejad E, Sirousazar M. Fixed-bed column performance of methylene blue biosorption by Luffa cylindrica: statistical and mathematical modeling. CHEM ENG COMMUN 2018. [DOI: 10.1080/00986445.2018.1460364] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Affiliation(s)
- Atefeh Baharlouei
- Faculty of Chemical Engineering, Urmia University of Technology, Urmia, Iran
| | - Elham Jalilnejad
- Faculty of Chemical Engineering, Urmia University of Technology, Urmia, Iran
| | - Mohammad Sirousazar
- Faculty of Chemical Engineering, Urmia University of Technology, Urmia, Iran
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264
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Chen X, Xu R, Xu Y, Hu H, Pan S, Pan H. Natural adsorbent based on sawdust for removing impurities in waste lubricants. JOURNAL OF HAZARDOUS MATERIALS 2018; 350:38-45. [PMID: 29448212 DOI: 10.1016/j.jhazmat.2018.01.057] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Revised: 01/29/2018] [Accepted: 01/30/2018] [Indexed: 06/08/2023]
Abstract
Sawdust was expected to remove impurities in waste lubricant, and was modified with sodium hydroxide and triethanolamine, which can ameliorate its surface properties and improve its adsorption capacity. The increase of hydroxyl groups, the decrease of carbonyl groups and grafting new azyl after modification were beneficial for the adsorption of impurities. The surface area of modified sawdust is 0.969 m2 g-1, which is nearly 1.39 times as much as raw sawdust. The point of zero charge for modified sawdust decreased from 6.75 to 5.68 while the crystallinity of modified sawdust increased from 40.35 to 56.16. This research discovered that compared with raw sawdust and filter paper, modified sawdust possessed superior adsorption performances. The removal percentages for Si, Al, Fe, Cu was enhanced from 2.54%, 20.34%, 16.55%, 0.26% to 15.37%, 21.99%, 45.37%, 4.88%, respectively, while that for oxidation, aromatics, sulphation, soot and water was improved by 4.33, 4.69, 0.76, 1.20, 1.28 times at 80 °C with 1000 rpm for 12 h. The research has also explored the optimum adsorption conditions (adsorption temperature, adsorption time and rotation rate). The modified sawdust showed a stable adsorption capacity for impurities under different adsorption conditions.
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Affiliation(s)
- Xiaohui Chen
- National Engineering Research Center of Chemical Fertilizer Catalyst, School of Chemical Engineering, Fuzhou University, Fuzhou 350002, Fujian, PR China.
| | - Ruting Xu
- National Engineering Research Center of Chemical Fertilizer Catalyst, School of Chemical Engineering, Fuzhou University, Fuzhou 350002, Fujian, PR China
| | - Yanting Xu
- National Engineering Research Center of Chemical Fertilizer Catalyst, School of Chemical Engineering, Fuzhou University, Fuzhou 350002, Fujian, PR China
| | - Hui Hu
- School of Chemical Engineering, Fuzhou University, Fuzhou, 350116, Fujian, PR China
| | - Shouquan Pan
- Fuzhou Savon Environmental Technology Co. Ltd, Fuzhou, 350026, PR China
| | - Hongkun Pan
- Fuzhou Savon Environmental Technology Co. Ltd, Fuzhou, 350026, PR China
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265
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Methacrylate copolymers and their composites with nano-CdS: synthesis, characterization, thermal behavior, and antimicrobial properties. INTERNATIONAL JOURNAL OF INDUSTRIAL CHEMISTRY 2018. [DOI: 10.1007/s40090-018-0146-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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266
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Fadhil AB, Aziz AM, Altamer MH. Optimization of methyl esters production from non-edible oils using activated carbon supported potassium hydroxide as a solid base catalyst. ARAB JOURNAL OF BASIC AND APPLIED SCIENCES 2018. [DOI: 10.1080/25765299.2018.1449414] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022] Open
Affiliation(s)
- Abdelrahman B. Fadhil
- Industrial Chemistry Research Laboratory, Department of Chemistry, College of Science, Mosul University, Mosul, Iraq
| | - Akram M. Aziz
- Industrial Chemistry Research Laboratory, Department of Chemistry, College of Science, Mosul University, Mosul, Iraq
| | - Marwa H. Altamer
- Industrial Chemistry Research Laboratory, Department of Chemistry, College of Science, Mosul University, Mosul, Iraq
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267
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Alizadeh Kordkandi S, Khoshfetrat AB, Faramarzi A. Performance modelling of a partially-aerated submerged fixed-film bioreactor: Mechanistic analysis versus semi data-driven method. J IND ENG CHEM 2018. [DOI: 10.1016/j.jiec.2017.12.039] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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268
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Yi C, Lu Q, Wang Y, Wang Y, Yang B. Degradation of organic wastewater by hydrodynamic cavitation combined with acoustic cavitation. ULTRASONICS SONOCHEMISTRY 2018; 43:156-165. [PMID: 29555271 DOI: 10.1016/j.ultsonch.2018.01.013] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Revised: 12/30/2017] [Accepted: 01/10/2018] [Indexed: 05/14/2023]
Abstract
In this paper, the decomposition of Rhodamine B (RhB) by hydrodynamic cavitation (HC), acoustic cavitation (AC) and the combination of these individual methods (HAC) have been investigated. The degradation of 20 L RhB aqueous solution was carried out in a self-designed HAC reactor, where hydrodynamic cavitation and acoustic cavitation could take place in the same space simultaneously. The effects of initial concentration, inlet pressure, solution temperature and ultrasonic power were studied and discussed. Obvious synergies were found in the HAC process. The combined method achieved the best conversion, and the synergistic effect in HAC was even up to 119% with the ultrasonic power of 220 W in a treatment time of 30 min. The time-independent synergistic factor based on rate constant was introduced and the maximum value reached 40% in the HAC system. Besides, the hybrid HAC method showed great superiority in energy efficiency at lower ultrasonic power (88-176 W). Therefore, HAC technology can be visualized as a promising method for wastewater treatment with good scale-up possibilities.
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Affiliation(s)
- Chunhai Yi
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China.
| | - Qianqian Lu
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Yun Wang
- Zhejiang Institute of Mechanical and Electrical Engineering Co., LTD, Hangzhou, Zhejiang 310051, China
| | - Yixuan Wang
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Bolun Yang
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
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269
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Vastag G, Apostolov S, Matijević B, Assaleh F. Multivariate assessment of azo dyes' biological activity parameters. J Chromatogr B Analyt Technol Biomed Life Sci 2018; 1084:141-149. [PMID: 29604612 DOI: 10.1016/j.jchromb.2018.03.035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Revised: 03/13/2018] [Accepted: 03/23/2018] [Indexed: 11/29/2022]
Abstract
Lipophilicity as key molecular descriptor of potential biological activity for selected derivatives of azo dyes was determined mathematically, by using relevant software packages and by reversed-phase thin-layer chromatography (RPTLC) on C18 and cyano modified carriers in mixtures of water/n-propanol and water/acetone. The obtained chromatographic parameters, RM0 and m, of the examined azo dyes were correlated with the standard measure of lipophilicity, log P, important pharmacokinetic predictors and selected toxicity parameters applying linear regression analysis. Thereby, good correlations for each applied system were obtained (average correlation coefficient, r, 0.944, 0.885 and 0.919). Also, the correlations between the studied parameters of azo dyes were examined applying two multivariate methods (Cluster Analysis and Principal Component Analysis). It was shown that the polarity of the substituent, and to a lesser extent its electronic effects has the greatest influence on the studied parameters of the azo dyes derivatives. Multivariate methods pointed out the similarity of the chromatographic retention constant, RM0, with the parameters of lipophilicity, unlike the chromatographic parameter m, which exhibits better agreement with the toxicity parameters.
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Affiliation(s)
- Gyöngyi Vastag
- University of Novi Sad, Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, Trg Dositeja Obradovića 3, 21000 Novi Sad, Serbia.
| | - Suzana Apostolov
- University of Novi Sad, Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, Trg Dositeja Obradovića 3, 21000 Novi Sad, Serbia
| | - Borko Matijević
- University of Novi Sad, Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, Trg Dositeja Obradovića 3, 21000 Novi Sad, Serbia
| | - Fathi Assaleh
- University of Zawia, Faculty of Science, P.O. Box 16168, Zawia, Libya
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270
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Behera G, Sutar P. A comprehensive review of mathematical modeling of paddy parboiling and drying: Effects of modern techniques on process kinetics and rice quality. Trends Food Sci Technol 2018. [DOI: 10.1016/j.tifs.2018.03.015] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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271
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272
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Zhang JJ, Qi P, Li J, Zheng XC, Liu P, Guan XX, Zheng GP. Three-dimensional Fe2O3–TiO2–graphene aerogel nanocomposites with enhanced adsorption and visible light-driven photocatalytic performance in the removal of RhB dyes. J IND ENG CHEM 2018. [DOI: 10.1016/j.jiec.2017.12.040] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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273
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Mirzaei M, Sabbaghi S, Zerafat MM. Photo-catalytic degradation of formaldehyde using nitrogen-doped TiO2
nano-photocatalyst: Statistical design with response surface methodology (RSM). CAN J CHEM ENG 2018. [DOI: 10.1002/cjce.23192] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Maryam Mirzaei
- NanoChemical Eng. Dept.; Faculty of Advanced Technologies; Shiraz University; Shiraz Iran
| | - Samad Sabbaghi
- NanoChemical Eng. Dept.; Faculty of Advanced Technologies; Shiraz University; Shiraz Iran
| | - Mohammad Mahdi Zerafat
- NanoChemical Eng. Dept.; Faculty of Advanced Technologies; Shiraz University; Shiraz Iran
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274
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Ebrahiminezhad A, Taghizadeh S, Ghasemi Y, Berenjian A. Green synthesized nanoclusters of ultra-small zero valent iron nanoparticles as a novel dye removing material. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 621:1527-1532. [PMID: 29054616 DOI: 10.1016/j.scitotenv.2017.10.076] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Revised: 10/09/2017] [Accepted: 10/09/2017] [Indexed: 06/07/2023]
Abstract
Iron based nanoparticles have gained much attention in recent years due to their unique physicochemical properties especially in the environmental remediation practices. There has been an increasing demand for new sustainable techniques for production of these nanoparticles. In the present work, a novel iron nanostructure was successfully fabricated by a facile and green approach using the aqueous extract of Mediterranean cypress (Cupressus sempervirens). In fact, nanoclusters of highly reactive ultra-small (~1.5nm in diameter) iron nanoparticles were constructed. Diameters of iron nanoclusters were measured to be from 9 to 31nm with mean diameter of 19nm. Appearance of the characteristic X-ray diffraction peak of zero valent iron at 2θ=43.5° indicates the great potential of Mediterranean cypress leaf extract for complete reduction of ferric ions. The presence of phytochemicals as organic capping agent was confirmed by IR radiation absorption at 1020cm-1 and 1623cm-1 corresponding to the presence of CO and carbonyl groups, respectively. The fabricated nanoclusters also showed a great potential for dye removal from aqueous solution in a time dependent manner. Decolourization efficiency was calculated to be 95% in a 6h process for methyl orange removal. The results of this study suggest the possibility of using iron nanoclusters for future pollutants removal applications from aqueous environments.
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Affiliation(s)
- Alireza Ebrahiminezhad
- Department of Medical Biotechnology, School of Medicine, and Non-communicable Diseases Research Centre, Fasa University of Medical Sciences, Fasa, Iran; Department of Medical Nanotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Pharmaceutical Biotechnology, School of Pharmacy and Pharmaceutical Sciences Research Centre, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Saeed Taghizadeh
- Department of Medical Biotechnology, School of Medicine, and Non-communicable Diseases Research Centre, Fasa University of Medical Sciences, Fasa, Iran; Department of Medical Biotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Younes Ghasemi
- Department of Medical Nanotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Pharmaceutical Biotechnology, School of Pharmacy and Pharmaceutical Sciences Research Centre, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Aydin Berenjian
- School of Engineering, Faculty of Science and Engineering, The University of Waikato, Hamilton, New Zealand.
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275
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S. S, P. SK. Influence of ultrasonic waves on preparation of active carbon from coffee waste for the reclamation of effluents containing Cr(VI) ions. J IND ENG CHEM 2018. [DOI: 10.1016/j.jiec.2017.11.029] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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276
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Ghuge SP, Saroha AK. Catalytic ozonation for the treatment of synthetic and industrial effluents - Application of mesoporous materials: A review. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2018; 211:83-102. [PMID: 29408086 DOI: 10.1016/j.jenvman.2018.01.052] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Revised: 01/15/2018] [Accepted: 01/17/2018] [Indexed: 06/07/2023]
Affiliation(s)
- Santosh P Ghuge
- Department of Chemical Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India.
| | - Anil K Saroha
- Department of Chemical Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
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277
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Regti A, Laamari MR, Stiriba SE, El Haddad M. Potential use of activated carbon derived from Persea species under alkaline conditions for removing cationic dye from wastewaters. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/j.jaubas.2017.01.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Abdelmajid Regti
- Equipe de Chimie Analytique & Environnement, Faculté Poly-disciplinaire, Université Cadi Ayyad, BP 4162, 46000 Safi, Morocco
| | - My Rachid Laamari
- Equipe de Chimie Analytique & Environnement, Faculté Poly-disciplinaire, Université Cadi Ayyad, BP 4162, 46000 Safi, Morocco
| | - Salah-Eddine Stiriba
- Equipe de Chimie Moléculaire, Matériaux et Modélisation, Faculté Poly-disciplinaire, Université Cadi Ayyad, BP 4162, 46000 Safi, Morocco
- Instituto de Ciencia Molecular/ICMol, Universidad de Valencia, C/. Catedrático José Beltrán, 2, 46980 Paterna, Valencia, Spain
| | - Mohammadine El Haddad
- Equipe de Chimie Analytique & Environnement, Faculté Poly-disciplinaire, Université Cadi Ayyad, BP 4162, 46000 Safi, Morocco
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278
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Li J, Zhou Q, Wu Y, Yuan Y, Liu Y. Investigation of nanoscale zerovalent iron-based magnetic and thermal dual-responsive composite materials for the removal and detection of phenols. CHEMOSPHERE 2018; 195:472-482. [PMID: 29274993 DOI: 10.1016/j.chemosphere.2017.12.093] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 11/06/2017] [Accepted: 12/14/2017] [Indexed: 06/07/2023]
Abstract
In this study, well-defined magnetic and thermal dual-responsive nanomaterials were synthesized, which contained ultrafine core-shell Fe@SiO2 nanoparticles as magnetic core and poly(N-isopropylacrylamide) (PNIPAM) as thermosensitive outer shell. The fabricated nanoparticles were characterized and investigated for the adsorption of four phenolic compounds, including bisphenol A (BPA), tetrabromobisphenol A (TBBPA), 4-tert-octylphenol (4-OP) and 4-n-nonylphenol (4-NP). The experimental results demonstrated that the excellent adsorption rates were attributed to hydrophobic effect, hydrogen-bonding interaction, and electrostatic attraction. The adsorption process followed pseudo-second-order kinetics model and nonlinear isotherms, indicating heterogeneous adsorption process. The adsorption efficiency of 4-NP using Fe@SiO2@PNIPAM was more than 90% under optimized condition within 2 h. The determined maximum adsorption amounts of BPA, TBBPA, 4-OP and 4-NP were 2.43, 6.83, 24.75, and 49.34 mg g-1, respectively. Meanwhile, a magnetic solid phase extraction (MSPE) method with Fe@SiO2@PNIPAM was established to determine these four compounds simultaneously. Under the optimal conditions, the linearity ranges were in the range of 2-200, 2-300, 2-100 and 2-100 μg L-1 for BPA, 4-OP, TBBPA, and 4-NP, respectively, and the detection limits were in the range of 0.58-0.76 μg L-1, respectively. The applicability of the proposed method was evaluated by analyzing three fresh water samples, and satisfactory spiked recoveries in the range 70.9-119.9% were achieved. It was proved that these adsorbents could be easily collected and recycled owing to the appropriate magnetism. The results also demonstrated that the as-prepared adsorbents had promising potential in the enrichment and analysis of detrimental organic pollutants from water.
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Affiliation(s)
- Jing Li
- College of Geosciences, China University of Petroleum Beijing, Beijing 102249, China
| | - Qingxiang Zhou
- College of Geosciences, China University of Petroleum Beijing, Beijing 102249, China.
| | - Yalin Wu
- College of Geosciences, China University of Petroleum Beijing, Beijing 102249, China
| | - Yongyong Yuan
- College of Geosciences, China University of Petroleum Beijing, Beijing 102249, China
| | - Yongli Liu
- College of Geosciences, China University of Petroleum Beijing, Beijing 102249, China
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279
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Sacco O, Vaiano V, Matarangolo M. ZnO supported on zeolite pellets as efficient catalytic system for the removal of caffeine by adsorption and photocatalysis. Sep Purif Technol 2018. [DOI: 10.1016/j.seppur.2017.10.056] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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280
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Conversion of eggshells into calcium titanate cuboid and its adsorption properties. RESEARCH ON CHEMICAL INTERMEDIATES 2018. [DOI: 10.1007/s11164-018-3332-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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281
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Hydrothermal fabrication of TiO 2 -MoO 3 nanocomposites with superior performance for water treatment. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/j.nanoso.2017.12.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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282
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Jia W, Shang Y, Gong L, Chen X. Synthesis of Al-ZnO nanocomposite and its potential application in photocatalysis and electrochemistry. INORG CHEM COMMUN 2018. [DOI: 10.1016/j.inoche.2017.12.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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283
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Munagapati VS, Yarramuthi V, Kim Y, Lee KM, Kim DS. Removal of anionic dyes (Reactive Black 5 and Congo Red) from aqueous solutions using Banana Peel Powder as an adsorbent. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 148:601-607. [PMID: 29127823 DOI: 10.1016/j.ecoenv.2017.10.075] [Citation(s) in RCA: 92] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 10/23/2017] [Accepted: 10/31/2017] [Indexed: 05/21/2023]
Abstract
The adsorption characteristics of Reactive Black 5 (RB5) and Cong Red (CR) onto Banana Peel Powder (BPP) from aqueous solution were investigated as a function of pH, contact time, initial dye concentration and temperature. The BPP was characterized by Fourier Transform Infrared Spectroscopy (FTIR) and Scanning Electron Microscopy (SEM) analysis. FTIR results revealed that hydroxyl (-OH), amine (-NH) and carboxyl (-C˭O) functional groups present on the surface of BPP. The SEM results show that BPP has an irregular and porous surface morphology which is adequate for dye adsorption. The equilibrium data were analyzed using Langmuir and Freundlich isotherm models. Experimental results were best represented by the Langmuir isotherm model. The adjustments of models were confirmed by the Chi-square (χ2) test and the correlation coefficients (R2). The maximum monolayer adsorption capacities of RB5 and CR on BPP calculated from Langmuir isotherm model were 49.2 and 164.6mg/g at pH 3.0 and 298K. Experimental data were also tested in terms of adsorption kinetics using pseudo-first-order and pseudo-second-order kinetic models. The results showed that the adsorption processes of both RB5 and CR followed well pseudo-second-order kinetic models. The calculated thermodynamic parameters ΔG°, ΔH° and ΔS° showed that the adsorption of RB5 and CR onto BPP was feasible, spontaneous and endothermic in the temperature range 298-318K. The RB5 and CR were desorbed from BPP using 0.1M NaOH. The recovery for both anionic dyes was found to be higher than 90%. Based on these it can be concluded that BPP can be used as an effective, low cost, and eco-friendly adsorbent for CR removal than RB5 from aqueous solution.
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Affiliation(s)
- Venkata Subbaiah Munagapati
- Department of Environmental Science and Engineering, Ewha Womans University, 11-1 Daehyun-Dong, Seodaemun-Gu, Seoul 120-750, Republic of Korea
| | - Vijaya Yarramuthi
- Department of Chemistry, Vikrama Simhapuri University, Nellore 524003, Andhra Pradesh, India
| | - Yeji Kim
- Department of Environmental Science and Engineering, Ewha Womans University, 11-1 Daehyun-Dong, Seodaemun-Gu, Seoul 120-750, Republic of Korea
| | - Kwon Min Lee
- Department of Environmental Science and Engineering, Ewha Womans University, 11-1 Daehyun-Dong, Seodaemun-Gu, Seoul 120-750, Republic of Korea
| | - Dong-Su Kim
- Department of Environmental Science and Engineering, Ewha Womans University, 11-1 Daehyun-Dong, Seodaemun-Gu, Seoul 120-750, Republic of Korea.
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284
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Tang Y, He T, Liu Y, Zhou B, Yang R, Zhu L. Sorption behavior of methylene blue and rhodamine B mixed dyes onto chitosan graft poly (acrylic acid-co-2-acrylamide-2-methyl propane sulfonic acid) hydrogel. ADVANCES IN POLYMER TECHNOLOGY 2018. [DOI: 10.1002/adv.21932] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yaoji Tang
- College of Chemical and Environmental Engineering; Shandong University of Science and Technology; Qingdao Shandong China
| | - Tengteng He
- College of Chemical and Environmental Engineering; Shandong University of Science and Technology; Qingdao Shandong China
| | - Yangwenyi Liu
- College of Chemical and Environmental Engineering; Shandong University of Science and Technology; Qingdao Shandong China
| | - Bin Zhou
- College of Chemical and Environmental Engineering; Shandong University of Science and Technology; Qingdao Shandong China
| | - Rui Yang
- College of Chemical and Environmental Engineering; Shandong University of Science and Technology; Qingdao Shandong China
| | - Linhui Zhu
- College of Chemical and Environmental Engineering; Shandong University of Science and Technology; Qingdao Shandong China
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285
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Dutt S, Vats T, Siril PF. Synthesis of polyaniline–magnetite nanocomposites using swollen liquid crystal templates for magnetically separable dye adsorbent applications. NEW J CHEM 2018. [DOI: 10.1039/c7nj04637e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
One dimensional iron oxide–polyaniline core–shell nanostructures enable faster adsorption of dyes and separation of the adsorbent using an external magnet.
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Affiliation(s)
- S. Dutt
- School of Basic Sciences, Indian Institute of Technology Mandi
- Mandi - 175005
- India
| | - T. Vats
- School of Basic Sciences, Indian Institute of Technology Mandi
- Mandi - 175005
- India
| | - P. F. Siril
- School of Basic Sciences, Indian Institute of Technology Mandi
- Mandi - 175005
- India
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286
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Alam U, Khan A, Ali D, Bahnemann D, Muneer M. Comparative photocatalytic activity of sol–gel derived rare earth metal (La, Nd, Sm and Dy)-doped ZnO photocatalysts for degradation of dyes. RSC Adv 2018; 8:17582-17594. [PMID: 35539270 PMCID: PMC9080395 DOI: 10.1039/c8ra01638k] [Citation(s) in RCA: 126] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2018] [Accepted: 05/06/2018] [Indexed: 12/21/2022] Open
Abstract
Rare earth metal doping into semiconductor oxides is considered to be an effective approach to enhance photocatalytic activity due to its ability to retard the electron–hole pair recombination upon excitation. Herein, we report the synthesis of different rare earth metal (La, Nd, Sm and Dy)-doped ZnO nanoparticles using a facile sol–gel route followed by evaluation of their photocatalytic activity by studying the degradation of methylene blue (MB) and Rhodamine B (RhB) under UV-light irradiation. Different standard analytical techniques were employed to investigate the microscopic structure and physiochemical properties of the prepared samples. The formation of the hexagonal wurtzite structure of ZnO was established by XRD and TEM analyses. In addition, the incorporation of rare earth metal into ZnO is confirmed by the shift of XRD planes towards lower theta values. All metal doped ZnO showed improved photocatalytic activity toward the degradation of MB, of which, Nd-doped ZnO showed the best activity with 98% degradation efficiency. In addition, mineralization of the dye was also observed, indicating 68% TOC removal in 180 min with Nd-doped ZnO nanoparticles. The influence of different operational parameters on the photodegradation of MB was also investigated and discussed in detail. Additionally, a possible photocatalytic mechanism for degradation of MB over Nd-doped ZnO nanoparticles has been proposed and involvement of hydroxyl radicals as reactive species is elucidated by radical trapping experiments. In this study, we compared the photocatalytic activity of sol–gel derived rare earth metal (La, Nd, Sm and Dy)-doped ZnO photocatalysts by studying the degradation of MB and RhB under UV light irradiation.![]()
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Affiliation(s)
- Umair Alam
- Department of Chemistry
- Aligarh Muslim University
- Aligarh-202002
- India
| | - Azam Khan
- Department of Chemistry
- Aligarh Muslim University
- Aligarh-202002
- India
| | - Danish Ali
- Department of Chemistry
- Aligarh Muslim University
- Aligarh-202002
- India
| | - Detlef Bahnemann
- Photocatalysis and Nanotechnology
- Institut fuer Technische Chemie
- Gottfried Wilhelm Leibniz Universitaet Hannover
- D-30167 Hannover
- Germany
| | - M. Muneer
- Department of Chemistry
- Aligarh Muslim University
- Aligarh-202002
- India
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287
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Geng Y, Zhang J, Zhou J, Lei J. Study on adsorption of methylene blue by a novel composite material of TiO2 and alum sludge. RSC Adv 2018; 8:32799-32807. [PMID: 35547697 PMCID: PMC9086298 DOI: 10.1039/c8ra05946b] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Accepted: 08/30/2018] [Indexed: 12/13/2022] Open
Abstract
A composite material of TiO2 and alum sludge (TiO2@AS) is reported in this paper. The samples of alum sludge (AS) and TiO2@AS were characterized using a field emission scanning electron microscope (FE-SEM), an energy dispersive spectrometer (EDS) and an Ultima IV X-ray diffractometer (XRD). In order to study the adsorption capacity and the adsorption mechanism of methylene blue by TiO2@AS in aqueous solution, three indexes — pH, adsorbent dosage and initial concentration of methylene blue — were investigated to evaluate the adsorption capacity of TiO2@AS. Moreover, thermodynamic, kinetic and isothermal model analyses of the adsorption process were carried out. The results showed that pH has little effect on the adsorption capacity. The maximum adsorption efficiency occurred at an optimized pH value of 11 for the aqueous solution. The adsorbed amount of methylene blue on TiO2@AS increased with the initial concentration of adsorbate and decreased with an increase in TiO2@AS dosage. The adsorption kinetics of methylene blue by TiO2@AS were in good agreement with the quasi-second-order kinetic model (R2 ≥ 0.9964), indicating that chemisorption is the main rate-controlling step. The Freundlich isotherm equation can best describe the experimental data (R2 = 0.9788). It is revealed that the adsorption is mainly multilayer adsorption. Because ΔG < 0 and ΔH > 0, the adsorption is a spontaneous endothermic process. Furthermore, the TiO2@AS can be regenerated under ultraviolet light, thus prolonging the service life of AS and facilitating a solution to the problem of adsorption plugging. A composite material of TiO2 and alum sludge (TiO2@AS) is reported in this paper.![]()
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Affiliation(s)
- Yani Geng
- College of Geography and Environment
- Baoji University of Arts and Sciences
- Baoji 721013
- P. R. China
- Shaanxi Key Laboratory of Disasters Monitoring and Mechanism Simulation
| | - Jun Zhang
- College of Geography and Environment
- Baoji University of Arts and Sciences
- Baoji 721013
- P. R. China
- Shaanxi Key Laboratory of Disasters Monitoring and Mechanism Simulation
| | - Jinhong Zhou
- College of Geography and Environment
- Baoji University of Arts and Sciences
- Baoji 721013
- P. R. China
- Shaanxi Key Laboratory of Disasters Monitoring and Mechanism Simulation
| | - Ji Lei
- College of Geography and Environment
- Baoji University of Arts and Sciences
- Baoji 721013
- P. R. China
- Shaanxi Key Laboratory of Disasters Monitoring and Mechanism Simulation
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288
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Mahmoud ME, Abdou AE, Shehata AK, Header HM, Hamed EA. Sustainable super fast adsorptive removal of Congo red dye from water by a novel technique based on microwave-enforced sorption process. J IND ENG CHEM 2018. [DOI: 10.1016/j.jiec.2017.08.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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289
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Silver Nanoparticles Engineered β-Cyclodextrin/γ-Fe2O3@ Hydroxyapatite Composite: Efficient, Green and Magnetically Retrievable Nanocatalyst for the Aqueous Reduction of Nitroarenes. Catal Letters 2017. [DOI: 10.1007/s10562-017-2272-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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290
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Nakkeeran E, Selvaraju N. Biosorption of chromium(VI) in aqueous solutions by chemically modified Strychnine tree fruit shell. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2017; 19:1065-1076. [PMID: 28521507 DOI: 10.1080/15226514.2017.1328386] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Chromium(VI) was removed from aqueous solution using sulfuric- and phosphoric-acid-activated Strychnine tree fruit shells (SSTFS and PSTFS) as biosorbents. Effects of various parameters such as adsorbent dose (0.02-0.1 g/L), temperature (303-333 K), agitation speed, solution pH (2-9), contact time, and initial Cr(VI) concentration (50-250 mg/L) were studied for a batch adsorption system. The optimum pH range for Cr(VI) adsorption was determined as 2. Equilibrium adsorption data were analyzed with isotherm models and the Langmuir and Freundlich models got best fitted values for SSTFS (R2 value - 0.994) and PSTFS (R2 value - 0.996), respectively. The maximum adsorption capacities of SSTFS and PSTFS were 100 and 142.85 mg/g, respectively. The biosorption process was well explained by pseudo-second-order kinetic model with higher R2 value (SSTFS - 0.996, PSTFS - 0.990) for both biosorbents. Characterization of biosorbents was done using Fourier transform infrared spectroscopy, scanning electron microscopy, elemental analysis, energy-dispersive X-ray analysis, and thermogravimetric analysis. Thermodynamic studies revealed the spontaneous, endothermic, and randomness in nature of the Cr(VI) adsorption process. Different concentrations of NaOH solutions were used to perform the desorption studies. The results demonstrated that both SSTFS and PSTFS can be used as an effective and low-cost biosorbent for removal of Cr(VI) from aqueous solutions.
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Affiliation(s)
- E Nakkeeran
- a Department of Chemical Engineering , National Institute of Technology Calicut , Kozhikode , Kerala , India
| | - N Selvaraju
- a Department of Chemical Engineering , National Institute of Technology Calicut , Kozhikode , Kerala , India
- b Department of Biosciences and Bioengineering , Indian Institute of Technology Guwahati , Guwahati , Assam , India
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291
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E. G, P. SK. Adsorption isotherm, kinetics and thermodynamic analysis of Cu(II) ions onto the dried algal biomass ( Spirulina platensis ). J IND ENG CHEM 2017. [DOI: 10.1016/j.jiec.2017.07.005] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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292
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Saravanan R, Aviles J, Gracia F, Mosquera E, Gupta VK. Crystallinity and lowering band gap induced visible light photocatalytic activity of TiO 2/CS (Chitosan) nanocomposites. Int J Biol Macromol 2017; 109:1239-1245. [PMID: 29175525 DOI: 10.1016/j.ijbiomac.2017.11.125] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Revised: 11/14/2017] [Accepted: 11/19/2017] [Indexed: 12/11/2022]
Abstract
The inhibition of electrons-holes recombination and enhancement of visible light photocatalytic activity were accomplished by the synthesized TiO2/CS nanocomposites system. In this present work, the different weight ratio of TiO2 and chitosan (75:25, 50:50 and 25:75) nanocomposites were synthesized via two-step method. After that, the existing functional groups, size and structure of the nanocomposites system were characterized via FT-IR, TEM and XRD measurements. The band gap of the prepared materials and its excitation and emission spectra were elevated through UV-vis and PL analyses. Moreover, the MO and MB degradation capability of the synthesized TiO2/CS nanocomposites was optimized, and the outcomes are described in detail.
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Affiliation(s)
- R Saravanan
- Department of Chemical Engineering, Biotechnology and Materials, University of Chile, Beauchef 851 6th floor, Santiago, Chile.
| | - J Aviles
- Department of Chemical Engineering, Biotechnology and Materials, University of Chile, Beauchef 851 6th floor, Santiago, Chile
| | - F Gracia
- Department of Chemical Engineering, Biotechnology and Materials, University of Chile, Beauchef 851 6th floor, Santiago, Chile.
| | - E Mosquera
- Departamento de Física, Universidad del Valle, A.A. 25360, Cali, Colombia
| | - Vinod Kumar Gupta
- Department of Applied Chemistry, University of Johannesburg, Johannesburg, South Africa; Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
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293
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Ghanbary F, Jafarnejad E. Removal of malachite green from the aqueous solutions using polyimide nanocomposite containing cerium oxide as adsorbent. INORG NANO-MET CHEM 2017. [DOI: 10.1080/24701556.2017.1357598] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Fatemeh Ghanbary
- Department of Chemistry, Mahabad Branch, Islamic Azad University, Mahabad, Iran
| | - Ehsan Jafarnejad
- Department of Chemistry, Mahabad Branch, Islamic Azad University, Mahabad, Iran
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294
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Methylene blue removal from aqueous solution by
magnetic clinoptilolite/chitosan/EDTA
nanocomposite. RESEARCH ON CHEMICAL INTERMEDIATES 2017. [DOI: 10.1007/s11164-017-3179-x] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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295
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Huang J, Cao Y, Shao Q, Peng X, Guo Z. Magnetic Nanocarbon Adsorbents with Enhanced Hexavalent Chromium Removal: Morphology Dependence of Fibrillar vs Particulate Structures. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b02835] [Citation(s) in RCA: 250] [Impact Index Per Article: 35.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jiangnan Huang
- School of Mechanical & Automotive Engineering, South China University of Technology, Guangzhou, Guangdong 510640, China
- School
of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, Guangdong 510640, China
| | - Yonghai Cao
- School of Mechanical & Automotive Engineering, South China University of Technology, Guangzhou, Guangdong 510640, China
- School
of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, Guangdong 510640, China
| | - Qian Shao
- College
of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, P. R. China
| | - Xiangfang Peng
- School of Mechanical & Automotive Engineering, South China University of Technology, Guangzhou, Guangdong 510640, China
| | - Zhanhu Guo
- Integrated
Composites Laboratory (ICL), Department of Chemical and Biomolecular
Engineering, University of Tennessee, Knoxville, Tennessee 37996, United States
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296
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Adsorption of methylene blue on natural cotton based flexible carbon fiber aerogels activated by novel air-limited carbonization method. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.07.062] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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297
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Mousavi SM, Mahjoub AR, Abazari R. Facile green fabrication of nanostructural Ni-doped ZnO hollow sphere as an advanced photocatalytic material for dye degradation. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.07.050] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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298
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Jethave G, Fegade U, Attarde S, Ingle S. Facile synthesis of Lead Doped Zinc-Aluminum Oxide Nanoparticles (LD-ZAO-NPs) for efficient adsorption of anionic dye: Kinetic, isotherm and thermodynamic behaviors. J IND ENG CHEM 2017. [DOI: 10.1016/j.jiec.2017.04.038] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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299
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Design and evaluation of functionalized multi-walled carbon nanotubes by 3-aminopyrazole for the removal of Hg(II) and As(III) ions from aqueous solution. RESEARCH ON CHEMICAL INTERMEDIATES 2017. [DOI: 10.1007/s11164-017-3091-4] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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300
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Gnanasekaran L, Hemamalini R, Saravanan R, Ravichandran K, Gracia F, Agarwal S, Gupta VK. Synthesis and characterization of metal oxides (CeO 2 , CuO, NiO, Mn 3 O 4 , SnO 2 and ZnO) nanoparticles as photo catalysts for degradation of textile dyes. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2017; 173:43-49. [DOI: 10.1016/j.jphotobiol.2017.05.027] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 05/18/2017] [Accepted: 05/19/2017] [Indexed: 11/16/2022]
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