201
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Solaymani E, Ghaedi M, Karimi H, Ahmadi Azqhandi MH, Asfaram A. Intensified removal of Malachite green by AgOH-AC nanoparticles combined with ultrasound: Modeling and optimization. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.3857] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Ehsan Solaymani
- Chemical Engineering Department; Yasouj University; Yasouj 75918-74831 Iran
| | - Mehrorang Ghaedi
- Chemistry Department; Yasouj University; Yasouj 75918-74831 Iran
| | - Hajir Karimi
- Chemical Engineering Department; Yasouj University; Yasouj 75918-74831 Iran
| | | | - Arash Asfaram
- Chemistry Department; Yasouj University; Yasouj 75918-74831 Iran
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202
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Song K, Xu H, Xu L, Xie K, Yang Y. Cellulose nanocrystal-reinforced keratin bioadsorbent for effective removal of dyes from aqueous solution. BIORESOURCE TECHNOLOGY 2017; 232:254-262. [PMID: 28235662 DOI: 10.1016/j.biortech.2017.01.070] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 01/16/2017] [Accepted: 01/22/2017] [Indexed: 06/06/2023]
Abstract
High-efficiency and recyclable three-dimensional bioadsorbents were prepared by incorporating cellulose nanocrystal (CNC) as reinforcements in keratin sponge matrix to remove dyes from aqueous solution. Adsorption performance of dyes by CNC-reinforced keratin bioadsorbent was improved significantly as a result of adding CNC as filler. Batch adsorption results showed that the adsorption capacities for Reactive Black 5 and Direct Red 80 by the bioadsorbent were 1201 and 1070mgg-1, respectively. The isotherms and kinetics for adsorption of both dyes on bioadsorbent followed the Langmuir isotherm model and pseudo-second order model, respectively. Desorption and regeneration experiments showed that the removal efficiencies of the bioadsorbent for both dyes could remain above 80% at the fifth recycling cycles. Moreover, the bioadsorbent possessed excellent packed-bed column operation performance. Those results suggested that the adsorbent could be considered as a high-performance and promising candidate for dye wastewater treatment.
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Affiliation(s)
- Kaili Song
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China; Department of Textiles, Merchandising and Fashion Design, 234, HECO Building, University of Nebraska-Lincoln, Lincoln, NE 68583-0802, United States
| | - Helan Xu
- Department of Textiles, Merchandising and Fashion Design, 234, HECO Building, University of Nebraska-Lincoln, Lincoln, NE 68583-0802, United States
| | - Lan Xu
- Department of Agronomy and Horticulture, University of Nebraska-Lincoln, Lincoln, NE 68583-0915, United States
| | - Kongliang Xie
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
| | - Yiqi Yang
- Department of Textiles, Merchandising and Fashion Design, 234, HECO Building, University of Nebraska-Lincoln, Lincoln, NE 68583-0802, United States; Department of Biological Systems Engineering, 234, HECO Building, University of Nebraska-Lincoln, Lincoln, NE 68583-0802, United States; Nebraska Center for Materials and Nanoscience, 234, HECO Building, University of Nebraska-Lincoln, Lincoln, NE 68583-0802, United States.
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203
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204
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Sharifpour E, Haddadi H, Ghaedi M. Optimization of simultaneous ultrasound assisted toxic dyes adsorption conditions from single and multi-components using central composite design: Application of derivative spectrophotometry and evaluation of the kinetics and isotherms. ULTRASONICS SONOCHEMISTRY 2017; 36:236-245. [PMID: 28069206 DOI: 10.1016/j.ultsonch.2016.11.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Revised: 11/06/2016] [Accepted: 11/07/2016] [Indexed: 05/13/2023]
Abstract
Present study is devoted on the efficient application of Sn (O, S)-NPs -AC for simultaneous sonicated accelerated adsorption of some dyes from single and multi-components systems. Sn (O, S) nanoparticles characterization by FESEM, EDX, EDX mapping and XRD revel its nano size structure with high purity of good crystallinity. Present adsorbent due to its nano spherical shape particles with approximate diameter of 40-60nm seems to be highly effective in this regard. The effects of five variables viz. pH (3.5-9.5), 0.010-0.028g of adsorbent and 0.5-6.5min mixing by sonication is good and practical conditions for well and expected adsorption of MB and CV over concentration range of 3-15mgL-1. Combination of response surface methodology (RSM) based on central composite design (CCD) and subsequent of analysis of variance (ANOVA) and t-test statistics were used to test the significance of the independent variables and their interactions. Regression analysis reveal that experimental data with high repeatability and efficiency well represented by second-order polynomial model with coefficient of determination value of 0.9988 and 0.9976 for MB and CV, respectively following conditions like pH 8.0, 0.016g adsorbent, 15mgL-1 of both dyes 4min sonication time is proportional with achievement of experimental removal percentage of 99.80% of MB and 99.87% of CV in batch experiment. Evaluation and estimation of adsorption data with Langmuir and Freundlich isotherm well justify the results based on their correlation coefficient and error analysis confirm that Langmuir model is good model with adsorption capacity of 109.17 and 115.34mgg-1 in single system and 95.69 and 102.99mgg-1 in binary system for MB and CV, respectively. MB and CV kinetic and rate of adsorption well fitted by pseudo-second order equation both in single and binary systems and experimental results denote more and favorable adsorption of CV than respective value in single system. The pseudo-second-order rate constant k2 in binary system larger than single system.
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Affiliation(s)
- Ebrahim Sharifpour
- Department of Chemistry, Faculty of Sciences, Shahrekord University, P.O. Box 115, Shahrekord, Iran
| | - Hedayat Haddadi
- Department of Chemistry, Faculty of Sciences, Shahrekord University, P.O. Box 115, Shahrekord, Iran; Nanotechnology Research Center, Shahrekord University, 8818634141 Shahrekord, Iran
| | - Mehrorang Ghaedi
- Chemistry Department, Yasouj University, Yasouj 75918-74831, Iran.
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205
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Zhu MQ, Wang ZW, Wen JL, Qiu L, Zhu YH, Su YQ, Wei Q, Sun RC. The effects of autohydrolysis pretreatment on the structural characteristics, adsorptive and catalytic properties of the activated carbon prepared from Eucommia ulmoides Oliver based on a biorefinery process. BIORESOURCE TECHNOLOGY 2017; 232:159-167. [PMID: 28222385 DOI: 10.1016/j.biortech.2017.02.033] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2016] [Revised: 02/07/2017] [Accepted: 02/08/2017] [Indexed: 06/06/2023]
Abstract
Eucommia ulmoides Oliver (EU) wood was consecutively treated by autohydrolysis pretreatment and chemical carbonization post-treatment based on a biorefinery process. Results showed that the optimal condition of the autohydrolysis pretreatment and carbonization process yielded 10.37kg xylooligosaccharides (XOS), 1.39kg degraded hemicellulosic products, 17.29kg other degraded products from hemicelluloses and 40.72kg activated carbon (SBET of 1534.06m2/g) from the 100kg raw materials. Simultaneously, 29.14kg gas products generated from the optimum integrated process was significantly lower than that from the direct carbonization process (68.84kg). Besides, the optimal activated carbon (AC170-1.0) also showed a moderate catalytic activity and high stability for hydrogen production by catalytic methane decomposition. Overall, the data presented indicated that the integrated process is an eco-friendly and efficient process to produce XOS and activated carbon, which is beneficial for value-added and industrial application of EU wood.
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Affiliation(s)
- Ming-Qiang Zhu
- Northwest Research Center of Rural Renewable Energy, Exploitation and Utilization of Ministry of Agriculture, Northwest A&F University, Yangling 712100, China
| | - Zhi-Wen Wang
- Northwest Research Center of Rural Renewable Energy, Exploitation and Utilization of Ministry of Agriculture, Northwest A&F University, Yangling 712100, China
| | - Jia-Long Wen
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China
| | - Ling Qiu
- Northwest Research Center of Rural Renewable Energy, Exploitation and Utilization of Ministry of Agriculture, Northwest A&F University, Yangling 712100, China
| | - Ya-Hong Zhu
- Northwest Research Center of Rural Renewable Energy, Exploitation and Utilization of Ministry of Agriculture, Northwest A&F University, Yangling 712100, China
| | - Yin-Quan Su
- Northwest Research Center of Rural Renewable Energy, Exploitation and Utilization of Ministry of Agriculture, Northwest A&F University, Yangling 712100, China
| | - Qin Wei
- Northwest Research Center of Rural Renewable Energy, Exploitation and Utilization of Ministry of Agriculture, Northwest A&F University, Yangling 712100, China
| | - Run-Cang Sun
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China.
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206
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Tan K, Hameed B. Insight into the adsorption kinetics models for the removal of contaminants from aqueous solutions. J Taiwan Inst Chem Eng 2017. [DOI: 10.1016/j.jtice.2017.01.024] [Citation(s) in RCA: 384] [Impact Index Per Article: 54.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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207
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Ma Q, Yu Y, Sindoro M, Fane AG, Wang R, Zhang H. Carbon-Based Functional Materials Derived from Waste for Water Remediation and Energy Storage. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1605361. [PMID: 28112831 DOI: 10.1002/adma.201605361] [Citation(s) in RCA: 112] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Revised: 10/31/2016] [Indexed: 06/06/2023]
Abstract
Carbon-based functional materials hold the key for solving global challenges in the areas of water scarcity and the energy crisis. Although carbon nanotubes (CNTs) and graphene have shown promising results in various fields of application, their high preparation cost and low production yield still dramatically hinder their wide practical applications. Therefore, there is an urgent call for preparing carbon-based functional materials from low-cost, abundant, and sustainable sources. Recent innovative strategies have been developed to convert various waste materials into valuable carbon-based functional materials. These waste-derived carbon-based functional materials have shown great potential in many applications, especially as sorbents for water remediation and electrodes for energy storage. Here, the research progress in the preparation of waste-derived carbon-based functional materials is summarized, along with their applications in water remediation and energy storage; challenges and future research directions in this emerging research field are also discussed.
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Affiliation(s)
- Qinglang Ma
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
- Singapore Membrane Technology Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, Singapore, 637141, Singapore
- Nanyang Environment and Water Research Institute, Interdisciplinary Graduate School, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Yifu Yu
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Melinda Sindoro
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Anthony G Fane
- Singapore Membrane Technology Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, Singapore, 637141, Singapore
| | - Rong Wang
- Singapore Membrane Technology Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, Singapore, 637141, Singapore
| | - Hua Zhang
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
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208
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Datta D, Kerkez Kuyumcu Ö, Bayazit ŞS, Abdel Salam M. Adsorptive removal of malachite green and Rhodamine B dyes on Fe3O4/activated carbon composite. J DISPER SCI TECHNOL 2017. [DOI: 10.1080/01932691.2016.1262776] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Dipaloy Datta
- Department of Chemical Engineering, Malaviya National Institute of Technology, Jaipur, Rajasthan, India
| | - Özge Kerkez Kuyumcu
- Chemical Engineering Department, Faculty of Engineering, Marmara University, Göztepe, İstanbul, Turkey
| | - Şahika Sena Bayazit
- Chemical Engineering Department, Faculty of Engineering and Architecture, Beykent University, Ayazağa, Sariyer, Istanbul, Turkey
| | - Mohamed Abdel Salam
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
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209
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Bagheri AR, Ghaedi M, Asfaram A, Jannesar R, Goudarzi A. Design and construction of nanoscale material for ultrasonic assisted adsorption of dyes: Application of derivative spectrophotometry and experimental design methodology. ULTRASONICS SONOCHEMISTRY 2017; 35:112-123. [PMID: 27639523 DOI: 10.1016/j.ultsonch.2016.09.008] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2016] [Revised: 09/07/2016] [Accepted: 09/08/2016] [Indexed: 06/06/2023]
Abstract
Response surface methodology (RSM) based on central rotatable experimental design was used to investigate the effect of ultrasound assisted simultaneous adsorption process variables on Cu: ZnS-NPs-AC from aqueous solution. Cu: ZnS-NPs-AC was characterized using field emission scanning electron microscopy (FE-SEM), Energy Dispersive X-ray Spectroscopy (EDX) and X-ray diffraction (XRD). To overcome the severe methylene blue (MB) and brilliant green (BG) dyes spectral overlapping, derivative spectrophotometric method were successfully applied for the simultaneous determination of dyes in their binary solutions. Simultaneous determination of the dyes can be carried out using the first-order and second order derivative signal at 664 and 663nm for BG and MB, respectively. The factors investigated were pH (2.5-8.5), adsorbent mass (0.006-0.030g), sonication time (1-5min) and initial MB and BG concentration (3-15mgL-1). Five levels, which were low level, center point, upper level and two axillar points, were considered for each of the factors. The desirability function (DF: 0.9853) on the STATISTICA version 10.0 software showed that the optimum removal (99.832 and 99.423% for MB and BG, respectively) was obtained at pH 8.0, adsorbent mass 0.024g, sonication time 4min and 9mgL-1 initial concentration for each dye. Besides, the results show that obtained data were adequately fitted into the second-order polynomial model, since the calculated model F value (172.96 and 96.35 for MB and BG, respectively) is higher than the critical F value. The values of coefficient of determination (0.9968 and 0.9943 for MB and BG, respectively) and adjusted coefficient of determination (0.9911 and 0.9840 for MB and BG, respectively) are close to 1, indicating a high correlation between the observed and the predicted values. The ultrasonic amplitude and adsorbent mass were found to be the most effective variable influencing the adsorption process. The adsorption equilibrium was well described by the Langmuir isotherm model with maximum adsorption capacity of 185.2 and 151.5mgg-1 for MB and BG respectively on adsorbent. The results indicate that pseudo-second-order kinetic equation and intra-particle diffusion model can better describe the adsorption kinetics.
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Affiliation(s)
| | - Mehrorang Ghaedi
- Chemistry Department, Yasouj University, Yasouj 75918-74831, Iran.
| | - Arash Asfaram
- Chemistry Department, Yasouj University, Yasouj 75918-74831, Iran
| | - Ramin Jannesar
- Department of Pathology, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Alireza Goudarzi
- Department of Polymer Engineering, Golestan University, Gorgan 49188-88369, Iran
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210
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Sharifzade G, Asghari A, Rajabi M. Highly effective adsorption of xanthene dyes (rhodamine B and erythrosine B) from aqueous solutions onto lemon citrus peel active carbon: characterization, resolving analysis, optimization and mechanistic studies. RSC Adv 2017. [DOI: 10.1039/c6ra23157h] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Erythrosine B (EB) and rhodamine B (RB) dyes that were selected as model of xanthene dyes for dye adsorption from aqueous solution, were removed effectively.
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Affiliation(s)
| | - Alireza Asghari
- Department of Chemistry
- Semnan University
- Semnan 35195-363
- Iran
| | - Maryam Rajabi
- Department of Chemistry
- Semnan University
- Semnan 35195-363
- Iran
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211
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Wang Z, Jin P, Wang M, Wu G, Dong C, Wu A. Biomass-Derived Porous Carbonaceous Aerogel as Sorbent for Oil-Spill Remediation. ACS APPLIED MATERIALS & INTERFACES 2016; 8:32862-32868. [PMID: 27934148 DOI: 10.1021/acsami.6b11648] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We prepared a cost-effective, environmentally friendly carbonaceuous oil sorbent with a lotus effect structure using a simple one-pot hydrothermal reaction and a mild modification process. The carbonaceous oil sorbent can rapidly, efficiently, and continuously collect oil in situ from a water surface. This sorbent was unlike traditional sorbents because it was not dependent on the weight and volume of the sorption material. The sorbent was also successfully used to separate and collect crude oil from the water surface and can collect organic solvents underwater. This novel oil sorbent and oil-collection device can be used in case of emergency for organic solvent leakages, as well as leakages in tankers and offshore drilling platforms.
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Affiliation(s)
- Zhuqing Wang
- Key Laboratory of Magnetic Materials and Devices, CAS & Key Laboratory of Additive Manufacturing Materials of Zhejiang Province, & Division of Functional Materials and Nanodevices, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , Ningbo 315201, China
- Anhui Key Laboratory of Functional Coordination Compounds, Anqing Normal University , Anqing 246011, China
| | - Pengxiang Jin
- Anhui Key Laboratory of Functional Coordination Compounds, Anqing Normal University , Anqing 246011, China
| | - Min Wang
- Anhui Key Laboratory of Functional Coordination Compounds, Anqing Normal University , Anqing 246011, China
| | - Genhua Wu
- Anhui Key Laboratory of Functional Coordination Compounds, Anqing Normal University , Anqing 246011, China
| | - Chen Dong
- Key Laboratory of Magnetic Materials and Devices, CAS & Key Laboratory of Additive Manufacturing Materials of Zhejiang Province, & Division of Functional Materials and Nanodevices, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , Ningbo 315201, China
| | - Aiguo Wu
- Key Laboratory of Magnetic Materials and Devices, CAS & Key Laboratory of Additive Manufacturing Materials of Zhejiang Province, & Division of Functional Materials and Nanodevices, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , Ningbo 315201, China
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212
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Zhou G, Liu C, Chu L, Tang Y, Luo S. Rapid and efficient treatment of wastewater with high-concentration heavy metals using a new type of hydrogel-based adsorption process. BIORESOURCE TECHNOLOGY 2016; 219:451-457. [PMID: 27521781 DOI: 10.1016/j.biortech.2016.07.038] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Revised: 07/06/2016] [Accepted: 07/09/2016] [Indexed: 06/06/2023]
Abstract
In this study, a new type of double-network hydrogel sorbent was developed to remove heavy metals in wastewater. The amino-functionalized Starch/PAA hydrogel (NH2-Starch/PAA) could be conducted in a wide pH and the adsorption process could rapidly achieve the equilibrium. The adsorption capacity got to 256.4mg/g for Cd(II). Resultantly, even though Cd(II) concentration was as high as 180mg/L, the Cd(II) could be entirely removed using 1g/L sorbent. Furthermore, the desirable mechanical durability of the adsorbent allowed easy separation and reusability. In the fixed-bed column experiments, the treatment volume of the effluent with a high Cd(II) concentration of 200mg/L reached 2400BV (27.1L) after eight times cycle. The NH2-Starch/PAA overcame the deficiency of conventional sorbents that could not effectively treat the wastewater with relatively high metal concentrations. This work provides a new insight into omnidirectional enhancement of sorbents for removing high-concentration heavy metals in wastewater.
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Affiliation(s)
- Guiyin Zhou
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, PR China
| | - Chengbin Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, PR China.
| | - Lin Chu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, PR China
| | - Yanhong Tang
- College of Materials Science and Engineering, Hunan University, Changsha 410082, PR China
| | - Shenglian Luo
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, PR China
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213
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Ansari F, Ghaedi M, Taghdiri M, Asfaram A. Application of ZnO nanorods loaded on activated carbon for ultrasonic assisted dyes removal: Experimental design and derivative spectrophotometry method. ULTRASONICS SONOCHEMISTRY 2016; 33:197-209. [PMID: 27245971 DOI: 10.1016/j.ultsonch.2016.05.004] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2016] [Revised: 05/04/2016] [Accepted: 05/05/2016] [Indexed: 05/15/2023]
Abstract
A method based on application of ZnO nanorods loaded on activated carbon (ZnO-NRs-AC) for adsorption of Bromocresol Green (BCG) and Eosin Y (EY) accelerated by ultrasound was described. The present material was synthesized under ultrasound assisted wet-chemical method and subsequently was characterized by FE-SEM, TEM, BET and XRD analysis. The extent of contribution of conventional variables like pH (2.0-10.0), BCG concentration (4-20mgL(-1)), EY concentration (3-23mgL(-1)), adsorbent dosage (0.01-0.03g), sonication time (1-5min) and centrifuge time (2-6min) as main and interaction part were investigated by central composite design under response surface methodology. Analysis of variance (ANOVA) was adapted to experimental data and guide the best operational conditions mass by set at 6.0, 9mgL(-1), 10mgL(-1), 0.02g, 4 and 4min for pH, BCG concentration, EY concentration, adsorbent dosage, sonication and centrifuge time, respectively. At these specified conditions dye adsorption efficiency was higher than 99.5%. The suitability and well prediction of optimum point was tested by conducting five experiments and respective results revel that RSD% was lower than 3% and high quality of fitting was confirmed by t-test. The experimental data were best fitted in Langmuir isotherm equation and the removal followed pseudo second order kinetics. The experimentally obtained maximum adsorption capacities were estimated as 57.80 and 61.73mgg(-1) of ZnO-NRs-AC for BCG and EY respectively from binary dye solutions. The mechanism of removal was explained by boundary layer diffusion via intraparticle diffusion.
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Affiliation(s)
- Fatemeh Ansari
- Department of Chemistry, Payame Noor University, 19395-3697 Tehran, Iran
| | - Mehrorang Ghaedi
- Chemistry Department, Yasouj University, Yasouj 75918-74831, Iran.
| | - Mehdi Taghdiri
- Department of Chemistry, Payame Noor University, 19395-3697 Tehran, Iran
| | - Arash Asfaram
- Chemistry Department, Yasouj University, Yasouj 75918-74831, Iran
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214
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Beyki MH, Bayat M, Shemirani F. Fabrication of core-shell structured magnetic nanocellulose base polymeric ionic liquid for effective biosorption of Congo red dye. BIORESOURCE TECHNOLOGY 2016; 218:326-334. [PMID: 27372013 DOI: 10.1016/j.biortech.2016.06.069] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Revised: 06/11/2016] [Accepted: 06/15/2016] [Indexed: 06/06/2023]
Abstract
Ionic liquids are considered to be a class of environmentally friendly compounds as combination of them with bioresource polymeric substances such as; cellulose, constitute emerging coating materials. Biosorption by polymeric ionic liquids exhibits an attractive green way that involves low cost and irrespective of toxicity. As a result, a novel polymeric ionic liquid has been developed by the reaction of one step synthesized Fe3O4-cellulose nanohybrid, epichlorohydrin and 1-methylimidazole and employed as a green sorbent for efficient biosorption of Congo red dye. Effective parameters on dye removing as well as their interactions were determined with response surface methodology (RSM). Congo red adsorption showed fast equilibrium time (11min) with maximum uptake of 131mgg(-1). Isotherm study revealed that Langmuir adsorption model can better describe dye adsorption behavior. Regeneration of the sorbent was performed with a mixture of methanol-acetone-NaOH (3.0molL(-1)) solution.
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Affiliation(s)
- Mostafa Hossein Beyki
- University of Tehran, University College of Science, School of Chemistry, PO Box 14155-6455, Tehran, Iran
| | - Mehrnoosh Bayat
- University of Tehran, University College of Science, School of Chemistry, PO Box 14155-6455, Tehran, Iran
| | - Farzaneh Shemirani
- University of Tehran, University College of Science, School of Chemistry, PO Box 14155-6455, Tehran, Iran.
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215
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Chen D, Chen X, Sun J, Zheng Z, Fu K. Pyrolysis polygeneration of pine nut shell: Quality of pyrolysis products and study on the preparation of activated carbon from biochar. BIORESOURCE TECHNOLOGY 2016; 216:629-636. [PMID: 27289053 DOI: 10.1016/j.biortech.2016.05.107] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Revised: 05/25/2016] [Accepted: 05/26/2016] [Indexed: 06/06/2023]
Abstract
A lab-scale pyrolysis reactor was utilized to investigate the effect of pyrolysis temperature (300-700°C) on the yield, quality, and energy distribution of products issued from the pyrolysis polygeneration of pine nut shells. Afterward, activated carbon was prepared from biochar using the steam activation method. Pyrolysis temperatures ranging from 500 to 600°C were found to be optimal in inducing products with improved properties, such as higher heating values of non-condensable gas, lower water content and elevated heating values of bio-oil, and substantial fixed carbon content and greater specific surface area of biochar. In addition, it was noticed that the activation conditions had a significant effect on the yield and adsorption performance of the activated carbon. As a result, activated carbon with elevated specific surface area reaching 1057.8m(2)/g was obtained at the optimal conditions of 850°C activation temperature, 80min activation time, and 1.5 steam/biochar ratio.
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Affiliation(s)
- Dengyu Chen
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Xiaojuan Chen
- SINOCALCI Technology Co., Ltd, Nanjing 211102, China
| | - Jun Sun
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China.
| | - Zhongcheng Zheng
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Kexin Fu
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
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216
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Bao L, Zhu X, Dai H, Tao Y, Zhou X, Liu W, Kong Y. Synthesis of porous starch xerogels modified with mercaptosuccinic acid to remove hazardous gardenia yellow. Int J Biol Macromol 2016; 89:389-95. [DOI: 10.1016/j.ijbiomac.2016.05.003] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Revised: 04/28/2016] [Accepted: 05/01/2016] [Indexed: 11/26/2022]
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217
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Reynel-Avila H, Mendoza-Castillo D, Bonilla-Petriciolet A. Relevance of anionic dye properties on water decolorization performance using bone char: Adsorption kinetics, isotherms and breakthrough curves. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2016.03.051] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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218
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Xie A, Dai J, He J, Sun J, Chang Z, Li C, Yan Y. Converting obsolete copy paper to porous carbon materials with preeminent adsorption performance for tetracycline antibiotic. RSC Adv 2016. [DOI: 10.1039/c5ra24707a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This work first reported the conversion of CP to PCMs. The ultrahigh adsorption amount, fast kinetics and great regeneration made the PCMs-850-4 as promising adsorbents for the low-cost, highly efficient and fast removal of organic pollutants.
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Affiliation(s)
- Atian Xie
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- China
| | - Jiangdong Dai
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- China
| | - Jinsong He
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- China
| | - Jun Sun
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- China
| | - Zhongshuai Chang
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- China
| | - Chunxiang Li
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- China
| | - Yongsheng Yan
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- China
- Key Laboratory of Preparation and Applications of Environmental Friendly Materials (Ministry of Education)
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219
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Gu X, Zhou K, Li Y, Yao J. Millimeter-sized carbon/TiO2 beads fabricated by phase inversion method for oil and dye adsorption. RSC Adv 2016. [DOI: 10.1039/c5ra28058c] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Millimeter-sized composite polyethersulfone/TiO2 beads were fabricated with different amounts of TiO2 and the surfactant F127 by a modified phase inversion method and the resulting composite carbon beads were obtained after calcination.
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Affiliation(s)
- Xiaoli Gu
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Kang Zhou
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Yu Li
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Jianfeng Yao
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
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220
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Liu T, Wei D, Zhang G, Hu L, Du B, Wei Q. A comparison of the influence of flocculent and granular structure of sludge on activated carbon: preparation, characterization and application. RSC Adv 2016. [DOI: 10.1039/c6ra18881h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The novelty of the work is the influence of sludge structure on activated carbon preparation, characterization and application.
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Affiliation(s)
- Ting Liu
- School of Resources and Environment
- University of Jinan
- Jinan 250022
- PR China
| | - Dong Wei
- School of Resources and Environment
- University of Jinan
- Jinan 250022
- PR China
| | - Ge Zhang
- School of Resources and Environment
- University of Jinan
- Jinan 250022
- PR China
| | - Lihua Hu
- School of Resources and Environment
- University of Jinan
- Jinan 250022
- PR China
| | - Bin Du
- School of Resources and Environment
- University of Jinan
- Jinan 250022
- PR China
| | - Qin Wei
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- PR China
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