1
|
Wedajo T, Mekonnen A, Alemu T. Preparation and application of zeolite-zinc oxide nano composite for nitrate removal from groundwater. JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE & ENGINEERING 2023; 21:277-291. [PMID: 37159745 PMCID: PMC10163202 DOI: 10.1007/s40201-023-00860-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 04/08/2023] [Indexed: 05/11/2023]
Abstract
Nanomaterial assisted removal of pollutants from water has got great attention. This study aimed to remove nitrate from groundwater using zeolite and zeolite-ZnO nanocomposite as synergetic effect. Zeolite-ZnO nanocomposite was prepared using the co-precipitation method. The Physico-chemical characteristics of the nanomaterials were determined using XRD, SEM, and FTIR. The results revealed that; Zeolite-ZnO nanocomposites with 13.12 nm particle size have successfully been loaded into the zeolite. In addition, its chemical composition was determined using AAS. The removal efficiency of nitrate from groundwater was studied using a batch experiment. The removal of nitrate was investigated as a function of adsorbent dose, pH, initial concentration of nitrate, contact time, and agitation speed. Moreover, the adsorption isotherm and kinetics were also determined. The results showed that the removal of nitrate was 92% at an optimum dose of 0.5 g, pH 5, initial nitrate concentration of 50 mg/L, the contact time of 1 h, and agitation speed of 160 rpm. The removal nitrate has been fitted well by the Langmuir isotherm model with correlation coefficients of R2 = 0.988. Thus, indicating the applicability of monolayer coverage of the nitrate ion on the surface of the nanocomposite. The adsorption process follows the pseudo-second-order model with a correlation coefficient of R2 = 0.997. The results of this work might find application in remediation of water by removing nitrate to meet the standards of water quality.
Collapse
Affiliation(s)
- Temesgen Wedajo
- National Soil Testing Center, Addis Ababa, Ethiopia
- Center for Environmental Science, Addis Ababa University, Addis Ababa, Ethiopia
- Ethiopian Institute of Agricultural Research, National Soil Research Laboratoty, Addis Ababa, Ethiopia
| | - Andualem Mekonnen
- Center for Environmental Science, Addis Ababa University, Addis Ababa, Ethiopia
| | - Tadesse Alemu
- Center for Environmental Science, Addis Ababa University, Addis Ababa, Ethiopia
| |
Collapse
|
2
|
Zhang J, Li J, Huang G, Yan L. DNA Extracted from Byproducts of Common Carp Testis and Application in Removing Ethidium Bromide from Pollutants. JOURNAL OF AQUATIC FOOD PRODUCT TECHNOLOGY 2022. [DOI: 10.1080/10498850.2022.2080516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Jie Zhang
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Guangxi University of Science and Technology, Liuzhou, Guangxi, P. R. China
| | - Junsheng Li
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Guangxi University of Science and Technology, Liuzhou, Guangxi, P. R. China
| | - Guoxia Huang
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Guangxi University of Science and Technology, Liuzhou, Guangxi, P. R. China
| | - Liujuan Yan
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Guangxi University of Science and Technology, Liuzhou, Guangxi, P. R. China
| |
Collapse
|
3
|
Weeraphan C, Thawornpan P, Thanapongpichat S, Srinoun K, Win Tun A, Srisomsap C, Svasti J, Buncherd H. Application of the Magnetic Fraction of Fly Ash as a Low-Cost Heterogeneous Fenton Catalyst for Degrading Ethidium Bromide. ANAL LETT 2021. [DOI: 10.1080/00032719.2021.1977313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Churat Weeraphan
- Laboratory of Biochemistry, Chulabhorn Research Institute, Bangkok, Thailand
| | | | | | - Kanitta Srinoun
- Faculty of Medical Technology, Prince of Songkla University, Songkhla, Thailand
| | - Aung Win Tun
- Faculty of Graduate Studies, Mahidol University, Nakhon Pathom, Thailand
| | | | - Jisnuson Svasti
- Laboratory of Biochemistry, Chulabhorn Research Institute, Bangkok, Thailand
| | - Hansuk Buncherd
- Laboratory of Biochemistry, Chulabhorn Research Institute, Bangkok, Thailand
- Faculty of Medical Technology, Prince of Songkla University, Songkhla, Thailand
- Medical Science Research and Innovation Institute, Prince of Songkla University, Songkhla, Thailand
| |
Collapse
|
4
|
Saruchi, Verma R, Kumar V, ALOthman AA. Comparison between removal of Ethidium bromide and eosin by synthesized manganese (II) doped zinc (II) sulphide nanoparticles: kinetic, isotherms and thermodynamic studies. JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE & ENGINEERING 2020; 18:1175-1187. [PMID: 33312633 PMCID: PMC7721835 DOI: 10.1007/s40201-020-00536-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Accepted: 09/07/2020] [Indexed: 05/16/2023]
Abstract
The present work seeks to investigate the kinetics and thermodynamic studies of ethidium bromide (EtBr) and eosin adsorption onto the synthesized Manganese (II) doped Zinc (II) Sulphide nanoparticles. A convenient scheme of co-precipitation was used for the synthesis of Manganese (II) doped Zinc (II) Sulphide nanoparticles. The Fourier transform infrared spectroscopy (FTIR), field emission scanning electron microscopy (FESEM) and X-ray diffractogram (XRD) techniques were used for the characterization of synthesized nanoparticles. The adsorption study was undertaken in a systematic manner. Effects of different experimental parameters were studied using batch adsorption method. It was evident from the results that EtBr and eosin removal was inversely proportional to the concentration of initial dye and directly proportional to contact time and adsorbent used. To study the adsorption equilibrium three different isotherm models like Langmuir, Freundlich and Flory-Huggins were used. It was observed that adsorption data synced most successfully with Langmuir isotherm model as compared to Freundlich and Flory-Huggins isotherm model. To fit the investigational statistics, the kinetic models pseudo 1st order, pseudo 2nd order and intra particle diffusion were taken onto consideration. The maximum dye removal of 98.19% and 97.16% for EtBr and eosin, was observed during the synthesis of nanoparticles.
Collapse
Affiliation(s)
- Saruchi
- Department of Biotechnology, CT Group of Institutions, Shahpur Campus, Jalandhar, Punjab India
| | - Rashim Verma
- Department of Biotechnology, DAV University, Jalandhar, India
| | - Vaneet Kumar
- Department of Biotechnology, CT Group of Institutions, Shahpur Campus, Jalandhar, Punjab India
| | - Asma A. ALOthman
- Chemistry Department, College of Science, King Saud University, Riyadh, 11451 Saudi Arabia
| |
Collapse
|
5
|
|
6
|
Verma B, Goel S, Balomajumder C. Multiwalled
CNTs
for
Cr(VI)
removal from industrial wastewater: An advanced study on adsorption, kinetics, thermodynamics for the comparison between the embedded and non‐embedded carboxyl group. CAN J CHEM ENG 2020. [DOI: 10.1002/cjce.23852] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Bharti Verma
- Department of Chemical Engineering IIT Roorkee Roorkee India
| | - Shreyank Goel
- Department of Chemical Engineering BIET Jhansi Jhansi India
| | | |
Collapse
|
7
|
Guerrero-Fajardo CA, Giraldo L, Moreno-Piraján JC. Preparation and Characterization of Graphene Oxide for Pb(II) and Zn(II) Ions Adsorption from Aqueous Solution: Experimental, Thermodynamic and Kinetic Study. NANOMATERIALS 2020; 10:nano10061022. [PMID: 32471059 PMCID: PMC7352254 DOI: 10.3390/nano10061022] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 05/13/2020] [Accepted: 05/14/2020] [Indexed: 02/07/2023]
Abstract
A thermodynamic and kinetic study of the adsorption process of Zn (II) and Pb (II) ions from aqueous solution on the surface of graphene oxide (GO) to establish the mechanisms of adsorbate–adsorbent interaction on this surface. The effect of pH on the retention capacity was studied and adsorption isotherms were determined from aqueous solution of the ions; once the experimental data was obtained, the kinetic and thermodynamic study of the sorption process was carried out. The data were fitted to the Langmuir, Freundlich, Dubinin-Raduskevich and Temkin isotherm models. The results showed that Zn(II) and Pb(II) on the GO adsorbing surface fitted the Langmuir model with correlation coefficients (R2) of 0.996. Kinetic models studied showed that a pseudo-second-order model was followed and thermodynamically, the process was spontaneous according to the values of Gibbs free energy (ΔGo). N2 adsorption isotherms were determined and modeled with the NLDFT (nonlocal density functional theory) and QSDFT (quenched solid density functional theory) kernels.
Collapse
Affiliation(s)
- Carlos A. Guerrero-Fajardo
- Departamento de Química-Grupos de Investigación Aprena y Calorimetría, Facultad de Ciencias, Universidad Nacional de Colombia-sede Bogotá, Cra. 45 No. 26–85, Edificio 451, Bogotá 111321, Colombia; (C.A.G.-F.); (L.G.)
| | - Liliana Giraldo
- Departamento de Química-Grupos de Investigación Aprena y Calorimetría, Facultad de Ciencias, Universidad Nacional de Colombia-sede Bogotá, Cra. 45 No. 26–85, Edificio 451, Bogotá 111321, Colombia; (C.A.G.-F.); (L.G.)
| | - Juan Carlos Moreno-Piraján
- Facultad de Ciencias, Departmento de Química, Universidad de los Andes, Bogotá 111711, Colombia
- Correspondence: ; Tel.: +57-1-339-4949
| |
Collapse
|
8
|
Alnajrani MN, Alsager OA. Decomposition of DNA staining agent ethidium bromide by gamma irradiation: Conditions, kinetics, by-products, biological activity, and removal from wastewater. JOURNAL OF HAZARDOUS MATERIALS 2020; 389:122142. [PMID: 32004843 DOI: 10.1016/j.jhazmat.2020.122142] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 01/14/2020] [Accepted: 01/18/2020] [Indexed: 06/10/2023]
Abstract
Ethidium Bromide (Eth-Br) is an intercalating agent commonly used in medical and biological laboratories as a DNA staining dye. Despite its popular use, aqueous solutions containing Eth-Br showed high toxicity, mutagenic capacity, and deactivate DNA transcription. In this study, the removal of Eth-Br from aqueous solutions by gamma irradiation has been fully investigated. Gamma irradiation was capable of achieving a near complete removal of Eth-Br in neutral and non-buffered aqueous solutions at an absorbed dose of 15 kGy. Various experimental conditions were studied and showed that the removal efficiency is not diminished. The addition of hydrogen peroxide (2 %) to the irradiated solutions reduced the D50 and D90 by 50 %. Modeling Eth-Br decomposition showed that the reaction followed pseudo first-order kinetics and reaches at least 90 % removal under all experimental conditions. TOC and HPLC measurements confirmed that Eth-Br is fully mineralized when the absorbed dose reaches 15 kGy. The biological activity of Eth-Br after irradiation treatment was investigated with synthetic DNA and natural DNA. The biological activity of Eth-Br was deactivated at an absorbed dose as low as 5 kGy. Toxicity measurement with E-coli bacteria also confirmed that the absorbed dose of 5 kGy was sufficient to remove Eth-Br toxicity.
Collapse
Affiliation(s)
- Mohammed N Alnajrani
- National Center for Irradiation Technology, Nuclear Science Research Institute, King Abdulaziz City for Science and Technology, P.O. Box 6086, Riyadh, 11442, Saudi Arabia
| | - Omar A Alsager
- National Center for Irradiation Technology, Nuclear Science Research Institute, King Abdulaziz City for Science and Technology, P.O. Box 6086, Riyadh, 11442, Saudi Arabia.
| |
Collapse
|
9
|
Bayode AA, Agunbiade FO, Omorogie MO, Moodley R, Bodede O, Unuabonah EI. Clean technology for synchronous sequestration of charged organic micro-pollutant onto microwave-assisted hybrid clay materials. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:9957-9969. [PMID: 31927738 DOI: 10.1007/s11356-019-07563-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Accepted: 12/29/2019] [Indexed: 06/10/2023]
Abstract
The Sustainable Development Goal 6 (SDG #6) of the United Nations (UN) is hinged on the provision, availability, and sustainability of water for the global populace by 2030. In a bid to achieve this goal, the quest to seek for ubiquitous and low-cost adsorbents to treat effluents laden with industrial dyes, such as methylene blue (MB), is on the increase in recent years. Acute exposure of humans to (MB) dye causes cyanosis, necrosis, and jaundice and even leads to death. In this research, zinc-modified hybrid clay composite adsorbent (materials from kaolinite and biomass (crushed Carica papaya seeds and/or plantain peel)) was developed via microwave route. This adsorbent was characterized using field emission scanning electron microscopy (FE-SEM), Fourier transform infrared (FTIR) spectroscopy, energy-dispersive X-ray (EDX), and high-resolution transmission electron microscopy (HR-TEM). These characterization techniques confirmed the success achieved in doping hybrid clay with Zn. These adsorbents were used to sequester cationic dye (MB) from aqueous solutions and textile effluent under various experimental conditions. The adsorption and desorption data obtained were analyzed using various kinetic models, which are two-step kinetics, pseudo-first order, pseudo-second order, fractal kinetics, first-order desorption, second-order desorption, and modified statistical rate theory (MSRT) desorption models. Results showed that the adsorption of the dye occurred via several chemical interactions, while the latter models (for desorption) indicated that desorption occurred in two different desorption sites on the adsorbent surfaces, which showed that the adsorption of MB dye onto the adsorbents was stable without the emergence of any secondary pollution. Adsorption of MB was achieved within 15 min for aqueous solutions and 900 min for textile effluent, which is an improvement on previous results from other studies. The three adsorption-desorption cycles for MB uptake by the adsorbents showed that it is pragmatically applicable to treat textile effluents. Hence, low-cost composite adsorbents have a potential for the effective remediation of MB dye from textile effluents as this study confirmed.
Collapse
Affiliation(s)
- Ajibola A Bayode
- Department of Chemical Sciences, Environmental and Chemical Processes Research Laboratory, Redeemer's University, P.M.B 230, Ede, Osun State, Nigeria
- African Center of Excellence for Water Research (ACEWATER), Redeemer's University, P.M.B 230, Ede, Osun State, 232101, Nigeria
- Departamento de Química e Física Molecular, Instituto de Química de Sao Carlos Laboratório de Química Analítica Ambiental e Ecotoxicologia (LaQuAAE), Universidade de Sao Paulo, Sao Carlos, Brazil
| | - Foluso O Agunbiade
- Department of Chemistry, University of Lagos, Akoka, Lagos State, Nigeria.
| | - Martins O Omorogie
- Department of Chemical Sciences, Environmental and Chemical Processes Research Laboratory, Redeemer's University, P.M.B 230, Ede, Osun State, Nigeria
- African Center of Excellence for Water Research (ACEWATER), Redeemer's University, P.M.B 230, Ede, Osun State, 232101, Nigeria
| | - Roshila Moodley
- School of Chemistry and Physics, University of KwaZulu-Natal, Westville Campus, Durban, 4000, South Africa
| | - Olusola Bodede
- School of Chemistry and Physics, University of KwaZulu-Natal, Westville Campus, Durban, 4000, South Africa
| | - Emmanuel I Unuabonah
- Department of Chemical Sciences, Environmental and Chemical Processes Research Laboratory, Redeemer's University, P.M.B 230, Ede, Osun State, Nigeria
- African Center of Excellence for Water Research (ACEWATER), Redeemer's University, P.M.B 230, Ede, Osun State, 232101, Nigeria
| |
Collapse
|
10
|
Li Z, Chang PH, Jiang WT, Liu Y. Enhanced removal of ethidium bromide (EtBr) from aqueous solution using rectorite. JOURNAL OF HAZARDOUS MATERIALS 2020; 384:121254. [PMID: 31586911 DOI: 10.1016/j.jhazmat.2019.121254] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 09/03/2019] [Accepted: 09/17/2019] [Indexed: 05/07/2023]
Abstract
Ethidium bromide (EtBr) is an intercalating agent commonly used as nucleic acid fluorescent tag in various techniques of life science field. It is considered as a serious biohazard due to its mutagenicity and carcinogenicity. As such, developing high efficiency and low cost materials as cleanup kits is in urgent need although many methods have already been developed. In this study we take use of the affinity of organic cations for clay minerals of high cation exchange capacity (CEC) and large specific surface area (SSA) and tested the removal of EtBr using rectorite, a type of clay mineral made of 1:1 regularly mixed layers of illite and montmorillonite. Our results showed that the uptake of Et+ on rectorite could be as high as 400 mmol/kg and the removal of Et+ was extremely fast. Desorption of inorganic cation Ca2+ and sorption of counterion Br- revealed that cation exchange was the dominating mechanism of Et+ removal using rectorite. Thermal analyses revealed that the EtBr could be thermally destructed inside the interlayer of rectorite and the material could be thermally regenerated. Thus, clay minerals could have a great potential to be fabricated into cleanup kits for the removal of EtBr in case of spill.
Collapse
Affiliation(s)
- Zhaohui Li
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, 29 Xueyuan Road, Beijing, 100083, China; Department of Earth Sciences, National Cheng Kung University, 1 University Road, Tainan 70101, Taiwan; Department of Geosciences, University of Wisconsin - Parkside, 900 Wood Road, Kenosha, WI 53144, USA.
| | - Po-Hsiang Chang
- Department of Earth Sciences, National Cheng Kung University, 1 University Road, Tainan 70101, Taiwan
| | - Wei-Teh Jiang
- Department of Earth Sciences, National Cheng Kung University, 1 University Road, Tainan 70101, Taiwan.
| | - Yujuan Liu
- Department of Chemistry, University of Wisconsin - Parkside, 900 Wood Road, Kenosha, WI 53144, USA
| |
Collapse
|
11
|
Santander P, Oyarce E, Sánchez J. New insights in the use of a strong cationic resin in dye adsorption. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2020; 81:773-780. [PMID: 32460280 DOI: 10.2166/wst.2020.158] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The adsorption of methyl orange (MO) in aqueous solution was evaluated using a cationic polymer (Amberlite IRA 402) in batch experiments under different experimental variables such as amount of resin, concentration of MO, optimum interaction time and pH. The maximum adsorption capacity of the resin was 161.3 mg g-1 at pH 7.64 at 55 °C and using a contact time of 300 min, following the kinetics of the pseudo-first-order model in the adsorption process. The infinite solution volume model shows that the adsorption rate is controlled by the film diffusion process. In contrast, the chemical reaction is the decisive step of the adsorption rate when the unreacted core model is applied. A better fit to the Langmuir model was shown for equilibrium adsorption studies. From the thermodynamic study it was observed that the sorption capacity is facilitated when the temperature increases.
Collapse
Affiliation(s)
- Paola Santander
- Centro de Biotecnología, Universidad de Concepción, Concepción, Chile and Núcleo Milenio sobre Procesos Catalíticos hacia la Química Sustentable (CSC), Santiago, Chile
| | - Estefanía Oyarce
- Departamento de Ciencias del Ambiente, Facultad de Química y Biología, Universidad de Santiago de Chile, USACH, Casilla 40, Correo 33, Santiago, Chile E-mail:
| | - Julio Sánchez
- Departamento de Ciencias del Ambiente, Facultad de Química y Biología, Universidad de Santiago de Chile, USACH, Casilla 40, Correo 33, Santiago, Chile E-mail:
| |
Collapse
|
12
|
Ge Z, Sun T, Xing J, Fan X. Efficient removal of ethidium bromide from aqueous solution by using DNA-loaded Fe 3O 4 nanoparticles. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:2387-2396. [PMID: 30467750 DOI: 10.1007/s11356-018-3747-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Accepted: 11/12/2018] [Indexed: 06/09/2023]
Abstract
Ethidium bromide (EtBr) is widely used as DNA-staining dyes for the detection of nucleic acids in laboratories and known to be powerful mutagens and carcinogens. In the present paper, the removal of EtBr from aqueous solutions in a batch system using DNA-loaded Fe3O4 nanoparticles as a simple and efficient method was investigated. DNA was covalently loaded on the surface of Fe3O4 magnetic nanoparticles, which was confirmed by FT-IR analysis and zeta potential measurements. The morphology and crystal structure were characterized by SEM, TEM, and XRD. The influence factors on the removal efficiency such as initial EtBr concentration, contact time, adsorbent dose, pH, and temperature were also studied. The removal process of EtBr can be completed quickly within 1 min. The removal efficiency was more than 99% while the EtBr concentration was routinely used (0.5 mg L-1) in biology laboratories and the dosages of nanoparticles were 1 g L-1. For the different EtBr concentrations from 0.5 to 10 mg L-1 in aqueous solution, the goal of optimized removal was achieved by adjusting the dosage of DNA-loaded Fe3O4 nanoparticles. The optimum pH was around 7 and the operational temperature from 4 to 35 °C was appropriate. Kinetic studies confirmed that the adsorption followed second-order reaction kinetics. Thermodynamic data revealed that the process was spontaneous and exothermic. The adsorption of EtBr on DNA-loaded Fe3O4 nanoparticles fitted well with the Freundlich isotherm model. These results indicated that DNA-loaded Fe3O4 nanoparticles are a promising adsorbent for highly efficient removal of EtBr from aqueous solution in practice.
Collapse
Affiliation(s)
- Zhiqiang Ge
- Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin, 300072, People's Republic of China
| | - Tingting Sun
- Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin, 300072, People's Republic of China
| | - Jinfeng Xing
- Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin, 300072, People's Republic of China
| | - Xuejiao Fan
- Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin, 300072, People's Republic of China.
| |
Collapse
|
13
|
Sulthana R, Taqui SN, Zameer F, Syed UT, Syed AA. Adsorption of ethidium bromide from aqueous solution onto nutraceutical industrial fennel seed spent: Kinetics and thermodynamics modeling studies. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2018; 20:1075-1086. [PMID: 30156921 DOI: 10.1080/15226514.2017.1365331] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Dye pollutants from research laboratories are one of the major sources for environmental contamination. In the present study, a nutraceutical industrial fennel seed spent (NIFSS) was explored as potential adsorbent for removal of ethidium bromide (EtBr) from aqueous solution. The adsorbent was characterized by scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR). Through batch experiments, the operating variables like initial dye concentration, adsorbent dosage, temperature, contact time, and pH were optimized. Equilibrium data were analyzed using three number of two-parameter and six number of three-parameter isotherm models. The adsorption kinetics was studied using pseudo-first order and pseudo-second order. The diffusion effects were studied by film diffusion, Webber-Morris, and Dumwald-Wagner diffusion models. The thermodynamic parameters; change in enthalpy (ΔHº), entropy (ΔSº), and Gibbs free energy (ΔGº) of adsorption system were also determined and evaluated.
Collapse
Affiliation(s)
- Razia Sulthana
- a Department of Studies in Chemistry , University of Mysore, Manasa Gangothri , Mysore , Karnataka , India
| | - Syed Noeman Taqui
- b Department of Chemistry , University of Malaya , Kuala Lumpur , Malaysia
| | - Farhan Zameer
- c Mahajana Life Science Research Laboratory, Department of Biotechnology , Microbiology and Biochemistry, Mahajana Research Foundation, Pooja Bhagavat Memorial Mahajana Post Graduate Centre, University of Mysore , Metagalli, Mysore , Karnataka , India
| | - Usman Taqui Syed
- d LAQV-REQUIMTE, Department of Chemistry , Faculty of Science and Technology, Universidade NOVA de Lisboa , Caparica , Portugal
| | - Akheel Ahmed Syed
- a Department of Studies in Chemistry , University of Mysore, Manasa Gangothri , Mysore , Karnataka , India
| |
Collapse
|
14
|
Magnetic Activated-ATP@Fe 3O 4 Nanocomposite as an Efficient Fenton-Like Heterogeneous Catalyst for Degradation of Ethidium Bromide. Sci Rep 2017; 7:6070. [PMID: 28729718 PMCID: PMC5519544 DOI: 10.1038/s41598-017-06398-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Accepted: 06/09/2017] [Indexed: 11/22/2022] Open
Abstract
Magnetic attapulgite-Fe3O4 nanocomposites (ATP-Fe3O4) were prepared by coprecipitation of Fe3O4 on ATP. The composites were characterized by scanning electron microscopey, X-ray diffractometry, Brunauer-Emmett-Teller analysis, X-ray photoelectron spectroscopy, energy dispersive spectrometer and transmission electron microscopy. Surface characterization showed that Fe3O4 particles with an average size of approximately 15 nm were successfully embedded in matrix of ATP. The capacity of the Fe3O4-activated ATP (A-ATP@Fe3O4) composites for catalytic degradation of ethidium bromide (EtBr, 80 mg/L) at different pH values, hydrogen peroxide (H2O2) concentrations, temperatures, and catalyst dosages was investigated. EtBr degradation kinetics studies indicated that the pseudo-first-order kinetic constant was 2.445 min−1 at T = 323 K and pH 2.0 with 30 mM H2O2, and 1.5 g/L of A-ATP@Fe3O4. Moreover, a regeneration study suggested that A-ATP@Fe3O4 maintained over 80% of its maximal EtBr degradation ability after five successive cycles. The effects of the iron concentrations and free radical scavengers on EtBr degradation were studied to reveal possible catalytic mechanisms of the A-ATP@Fe3O4 nanocomposites. Electron Paramagnetic Resonance revealed both hydroxyl (∙OH) and superoxide anion (∙O2−) radicals were involved in EtBr degradation. Radical scavenging experiment suggested EtBr degradation was mainly ascribed to ∙OH radicals, which was generated by reaction between Fe2+ and H2O2 on the surface of A-ATP@Fe3O4.
Collapse
|
15
|
Heibati B, Yetilmezsoy K, Zazouli MA, Rodriguez-Couto S, Tyagi I, Agarwal S, Gupta VK. Adsorption of ethidium bromide (EtBr) from aqueous solutions by natural pumice and aluminium-coated pumice. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2015.08.063] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
|
16
|
Kinetics of the adsorption of Pb(II) ions from aqueous solutions by graphene oxide and thiol functionalized graphene oxide. J Mol Liq 2015. [DOI: 10.1016/j.molliq.2015.05.022] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|