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Bibi N, Sayed M, Shah NS, Rehman F, Naeem A, Mahmood T, Hussain S, Iqbal J, Gul I, Gul S, Bushra M. Development of zerovalent iron and titania (Fe 0/TiO 2) composite for oxidative degradation of dichlorophene in aqueous solution: synergistic role of peroxymonosulfate (HSO 5-). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:63041-63056. [PMID: 35445919 DOI: 10.1007/s11356-022-20174-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 04/05/2022] [Indexed: 06/14/2023]
Abstract
Binary composite of zerovalent iron and titanium dioxide (Fe0/TiO2) was synthesized for the catalytic removal of dichlorophene (DCP) in the presence of peroxymonosulfate (PMS). The as-prepared composite (Fe0/TiO2) exhibits synergistic effect and enhanced properties like improved catalytic activity of catalyst and greater magnetic property for facile recycling of catalyst. The results showed that without addition of PMS at reaction time of 50 min, the percent degradation of DCP by TiO2, Fe0, and Fe0/TiO2 was just 5%, 11%, and 12%, respectively. However, with the addition of 0.8 mM PMS, at 10 min of reaction time, the catalytic degradation performance of Fe0, TiO2, and Fe0/TiO2 was significantly improved to 82%, 18%, and 88%, respectively. The as-prepared catalyst was fully characterized to evaluate its structure, chemical states, and morphology. Scanning electron microscopy results showed that in composite TiO2 causes dispersion of agglomerated iron particles which enhances porosity and surface area of the composites and X-ray diffraction (XRD), energy dispersive X-ray (EDX), and Fourier-transform infrared (FTIR) results revealed successful incorporation of Fe0, and oxides of Fe and TiO2 in the composite. The adsorption-desorption analysis verifies that the surface area of Fe0/TiO2 is significantly larger than bare Fe0 and TiO2. Moreover, the surface area, particle size, and crystal size of Fe0/TiO2 was surface area = 85 m2 g-1, particle size = 0.35 μm, and crystal size = 0.16 nm as compared to TiO2 alone (surface area = 22 m2 g-1, particle size = 4.25 μm, and crystal size = 25.4 nm) and Fe0 alone (surface area = 65 m2 g-1, particle size = 0.9 μm, and crystal size = 7.87 nm). The as-synthesized material showed excellent degradation performance in synthesized wastewater as well. The degradation products and their toxicities were evaluated and the resulted degradation mechanism was proposed accordingly. The toxicity values decreased in order of DP1 > DP5 > DP2 > DP3 > DP4 and the LC50 values toward fish for 96-h duration decreased from 0.531 to 67.2. This suggests that the proposed technology is an excellent option for the treatment of antibiotic containing wastewater.
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Affiliation(s)
- Noorina Bibi
- Radiation Chemistry Laboratory, National Centre of Excellence in Physical Chemistry, University of Peshawar, Peshawar, 25120, Pakistan
| | - Murtaza Sayed
- Radiation Chemistry Laboratory, National Centre of Excellence in Physical Chemistry, University of Peshawar, Peshawar, 25120, Pakistan.
| | - Noor S Shah
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehari, 61100, Pakistan
| | - Faiza Rehman
- Department of Chemistry, University of Poonch, Rawalakot, Azad Kashmir, Pakistan
| | - Abdul Naeem
- Radiation Chemistry Laboratory, National Centre of Excellence in Physical Chemistry, University of Peshawar, Peshawar, 25120, Pakistan
| | - Tahira Mahmood
- Radiation Chemistry Laboratory, National Centre of Excellence in Physical Chemistry, University of Peshawar, Peshawar, 25120, Pakistan
| | - Sajjad Hussain
- School of Chemistry, Faculty of Basic Sciences and Mathematics, Minhaj University Lahore, Lahore, Pakistan
| | - Jibran Iqbal
- College of Natural and Health Sciences, Zayed University, P.O. Box 144534, Abu Dhabi, United Arab Emirates
| | - Ikhtiar Gul
- Radiation Chemistry Laboratory, National Centre of Excellence in Physical Chemistry, University of Peshawar, Peshawar, 25120, Pakistan
| | - Saman Gul
- Radiation Chemistry Laboratory, National Centre of Excellence in Physical Chemistry, University of Peshawar, Peshawar, 25120, Pakistan
| | - Maleeha Bushra
- Radiation Chemistry Laboratory, National Centre of Excellence in Physical Chemistry, University of Peshawar, Peshawar, 25120, Pakistan
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MFO@NZVI/hydrogel for sulfasalazine degradation: Performance, mechanism and degradation pathway. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Peng YP, Liu CC, Chen KF, Huang CP, Chen CH. Green synthesis of nano-silver-titanium nanotube array (Ag/TNA) composite for concurrent ibuprofen degradation and hydrogen generation. CHEMOSPHERE 2021; 264:128407. [PMID: 33022502 DOI: 10.1016/j.chemosphere.2020.128407] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 09/15/2020] [Accepted: 09/18/2020] [Indexed: 06/11/2023]
Abstract
Silver deposited titanate nanotube array composite (Ag/TNA-c) was successfully synthesized using tea leaves and ground coffee as reducing agent for the first time. The synthesis method was effective, eco-friendly, and reproducible in producing quality nano-composite. The Ag/TNA composite was characterized via XPS, SEM, UV-vis, XRD, and electrochemical analyses for chemical and physical properties. Additionally, chlorogenic acid, caffeine, and catechin were selected as reducing agents for purpose of comparison. Results indicated that catechin and chlorogenic acid were the main reducing agents responsible for Ag+ reduction in tea leaves and ground coffee, respectively. The synthesized Ag/TNA-c exhibited the best photocatalytic (PC) performance in terms of photo-current response, EIS, Ibuprofen degradation, and hydrogen generation in a PEC system. Pairing with a Pt cathode, the photoelectrochemical (PEC) system using the synthesized Ag/TNA composite photo-anode, was capable of concurrent anodic oxidation of Ibuprofen and cathodic generation of hydrogen. Deposition of nano-Ag particles on TNA enhanced the concurrent oxidation and reduction reaction in the PEC system. Results of ESR analysis confirmed the role of hydroxyl radical on Ibuprofen degradation over Ag/TNA-c in the PEC system. Mechanism of Ag/TNA PEC system was proposed to illustrate the oxidation and reduction reaction.
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Affiliation(s)
- Yen-Ping Peng
- Institute of Environmental Engineering, National Sun Yat-sen University, Kaoshiung, 804, Taiwan.
| | - Chih-Chen Liu
- Department of Environmental Science and Engineering, Tunghai University, Taichung, 40704, Taiwan
| | - Ku-Fan Chen
- Department of Civil Engineering, National Chi Nan University, Puli, Nantou, 54561, Taiwan
| | - Chin-Pao Huang
- Department of Civil and Environmental Engineering, University of Delaware, Newark, DE, 19716, USA.
| | - Chia-Hung Chen
- Institute of Environmental Engineering, National Sun Yat-sen University, Kaoshiung, 804, Taiwan
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Teng J, You S, Ma F, Chen X, Ren N. Enhanced electrochemical decontamination and water permeation of titanium suboxide reactive electrochemical membrane based on sonoelectrochemistry. ULTRASONICS SONOCHEMISTRY 2020; 69:105248. [PMID: 32652485 DOI: 10.1016/j.ultsonch.2020.105248] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 06/28/2020] [Accepted: 06/30/2020] [Indexed: 06/11/2023]
Abstract
Reactive electrochemical membrane (REM) allows electrochemical oxidation (EO) water purification under flow-through operation, which improves mass transfer on the anode surface significantly. However, O2 evolution reaction (OER) may cause oxygen bubbles to be trapped in small-sized confined flow channels, and thus degrade long-term filterability and treatability of REM. In this study, ultrasound (ultrasonic vibrator, 28 kHz, 180 W) was applied to EO system (i. e. sonoelectrochemistry) containing titanium suboxide-REM (TiSO-REM) anode for enhanced oxidation of 4-chlorophenol (4-CP) target pollutant. Both experimental and modeling results demonstrated that ultrasound could mitigate the retention of O2 bubbles in the porous structures by destructing large-size bubbles, thus not only increasing permeate flux but also promoting local mass transfer. Meanwhile, oxidation rate of 4-CP for EO with ultrasound (EO-US, 0.0932 min-1) was 216% higher than that for EO without ultrasound (0.0258 min-1), due to enhanced mass transfer and OH production under the cavitation effect of ultrasound. Density functional theory (DFT) calculations confirmed the most efficient pathway of 4-CP removal to be direct electron transfer of 4-CP to form [4-CP]+, followed by subsequent oxidation mediated by OH produced from anodic water oxidation on TiSO-REM anode. Last, the stability of TiSO-REM could be improved considerably by application of ultrasound, due to alleviation of electrode deactivation and fouling, indicated by cyclic test, scan electron microscopy (SEM) observation and Fourier transform infrared spectroscopy (FT-IR) characterization. This study provides a proof-of-concept demonstration of ultrasound for enhanced EO of recalcitrant organic pollutants by REM anode, making decentralized wastewater treatment more efficient and more reliable.
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Affiliation(s)
- Jie Teng
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Shijie You
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China.
| | - Fang Ma
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Xiaodong Chen
- Innovative Centre for Flexible Devices (iFLEX), School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Nanqi Ren
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
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Preparation of Biomass Activated Carbon Supported Nanoscale Zero-Valent Iron (Nzvi) and Its Application in Decolorization of Methyl Orange from Aqueous Solution. WATER 2019. [DOI: 10.3390/w11081671] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The nanoscale zero-valent iron (nZVI) has great potential to degrade organic polluted wastewater. In this study, the nZVI particles were obtained by the pulse electrodeposition and were loaded on the biomass activated carbon (BC) for synthesizing the composite material of BC-nZVI. The composite material was characterized by SEM-EDS and XRD and was also used for the decolorization of methyl orange (MO) test. The results showed that the 97.94% removal percentage demonstrated its promise in the remediation of dye wastewater for 60 min. The rate of MO matched well with the pseudo-second-order model, and the rate-limiting step may be a chemical sorption between the MO and BC-nZVI. The removal percentage of MO can be effectively improved with higher temperature, larger BC-nZVI dosage, and lower initial concentration of MO at the pH of 7 condition.
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Liu X, Huang F, Yu Y, Jiang Y, Zhao K, He Y, Xu Y, Zhang Y. Determination and toxicity evaluation of the generated byproducts from sulfamethazine degradation during catalytic oxidation process. CHEMOSPHERE 2019; 226:103-109. [PMID: 30921638 DOI: 10.1016/j.chemosphere.2019.03.125] [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: 01/06/2019] [Revised: 03/17/2019] [Accepted: 03/18/2019] [Indexed: 06/09/2023]
Abstract
Sulfamethazine (SMZ), a kind of sulfonamide antibiotics, can exist for a long periods of time and has been widely detected in the environment, which could pose a potential health threat to human beings. In this study, sludge-derived carbon (SC) catalyst was modified and applied to degrade SMZ during catalytic oxidation process. Degradation products and possible transformation pathways were investigated based on data of GC-MS. The toxicity evolution of SMZ degradation after catalytic oxidation process was tested with zebrafish and microbial degradation respirometer. As a consequence, SC modified with nitric acid (SCHNO3) exhibited highly catalytic efficiency reached 92.2% SMZ conversion and 75.2% total organic carbon (TOC) removal rate after 480 min. Ten kinds of possible products were identified by GC-MS during degradation process of SMZ, indicating two possible pathways. No pronounced malformation was observed in the toxicity experiments with zebrafish until 120 h post fertilization (hpf). However, further analysis showed that zebrafish incubated with SMZ solution had higher mortality, lower hatching rate, slower spontaneous movement and shorter body length, compared with the group used normal nutrient solution, while the water after treatment had lower toxicity effects on zebrafish. The toxicity experiments with microbial degradation respirometer showed that SMZ solution had lower value of oxygen uptake, which indicated that SMZ solution had higher values of toxicity and inhibition of pharmaceutical compounds. This study provides a catalyst with low cost and high catalytic efficiency for degradation process of SMZ and gives a deeper insight into the ecotoxicity of treated water.
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Affiliation(s)
- Xiyang Liu
- School of Environmental Sciences and Engineering, Nanjing Tech University, Nanjing, 211800, China
| | - Fei Huang
- College of Pharmacy, Nanjing Tech University, Nanjing, 211800, China
| | - Yang Yu
- School of Environmental Sciences and Engineering, Nanjing Tech University, Nanjing, 211800, China; NanjingTech Institute for ChemEng&Environ Materials, Nanjing Tech University, 211800, China.
| | - Yongan Jiang
- School of Environmental Sciences and Engineering, Nanjing Tech University, Nanjing, 211800, China
| | - Kun Zhao
- School of Environmental Sciences and Engineering, Nanjing Tech University, Nanjing, 211800, China
| | - Yide He
- School of Environmental Sciences and Engineering, Nanjing Tech University, Nanjing, 211800, China; NanjingTech Institute for ChemEng&Environ Materials, Nanjing Tech University, 211800, China
| | - Yanhua Xu
- School of Environmental Sciences and Engineering, Nanjing Tech University, Nanjing, 211800, China; NanjingTech Institute for ChemEng&Environ Materials, Nanjing Tech University, 211800, China
| | - Yongjun Zhang
- School of Environmental Sciences and Engineering, Nanjing Tech University, Nanjing, 211800, China; NanjingTech Institute for ChemEng&Environ Materials, Nanjing Tech University, 211800, China.
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Kazemi M, Jahanshahi M, Peyravi M. Hexavalent chromium removal by multilayer membrane assisted by photocatalytic couple nanoparticle from both permeate and retentate. JOURNAL OF HAZARDOUS MATERIALS 2018; 344:12-22. [PMID: 29031091 DOI: 10.1016/j.jhazmat.2017.09.059] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2017] [Revised: 09/20/2017] [Accepted: 09/30/2017] [Indexed: 06/07/2023]
Abstract
In this study, a novel photocatalytic thin film nanocomposite (TFC) membrane was prepared for removal of hexavalent chromium (Cr(VI)) from aqueous solution. In this regards, a TFC membrane was modified by a layer of chitosan as an adsorbent and then was coated with a layer of synthesized photocatalytic nanoscale zerovalent iron@titanium dioxide (nZVI@TiO2) nanoparticles via layer-by-layer (LBL) technology. Prepared membranes were characterized by X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDX), field emission scanning electron microscopy (FESEM), atomic force microscopy (AFM) and contact angle analysis. The Cr(VI) removal efficiency of the membranes was evaluated by batch removal and dynamic filtration tests. The water flux was increased from 26.2 to 39.7l/m2h as a consequence of improved hydrophilicity which was approved by contact angle analysis. The modified TFC membrane has shown the significant removal of Cr(VI) in retentate as well as the permeate stream. Further, the Cr(VI) removal of retentate flow decreased with increasing pH and feed concentration whereas the Cr(VI) removal of permeate was enhanced with increasing initial feed concentration. Increasing the flux recovery from 62% (for neat TFC) to 87% (for modified TFC membrane) demonstrated that the modification of membrane improved the anti-fouling property of the modified membrane.
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Affiliation(s)
- Maryamossadat Kazemi
- Nanotechnology Research Institute, Babol Noshirvani University of Technology, Shariati Ave., Post Code: 47148-71167, Babol, Iran
| | - Mohsen Jahanshahi
- Nanotechnology Research Institute, Babol Noshirvani University of Technology, Shariati Ave., Post Code: 47148-71167, Babol, Iran
| | - Majid Peyravi
- Nanotechnology Research Institute, Babol Noshirvani University of Technology, Shariati Ave., Post Code: 47148-71167, Babol, Iran.
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