1
|
Guo Y, Li Y, Wang Z. Electrocatalytic hydro-dehalogenation of halogenated organic pollutants from wastewater: A critical review. WATER RESEARCH 2023; 234:119810. [PMID: 36889094 DOI: 10.1016/j.watres.2023.119810] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 02/06/2023] [Accepted: 02/24/2023] [Indexed: 06/18/2023]
Abstract
Halogenated organic pollutants are often found in wastewater effluent although it has been usually treated by advanced oxidation processes. Atomic hydrogen (H*)-mediated electrocatalytic dehalogenation, with an outperformed performance for breaking the strong carbon-halogen bonds, is of increasing significance for the efficient removal of halogenated organic compounds from water and wastewater. This review consolidates the recent advances in the electrocatalytic hydro-dehalogenation of toxic halogenated organic pollutants from contaminated water. The effect of the molecular structure (e.g., the number and type of halogens, electron-donating or electron-withdrawing groups) on dehalogenation reactivity is firstly predicted, revealing the nucleophilic properties of the existing halogenated organic pollutants. The specific contribution of the direct electron transfer and atomic hydrogen (H*)-mediated indirect electron transfer to dehalogenation efficiency has been established, aiming to better understand the dehalogenation mechanisms. The analyses of entropy and enthalpy illustrate that low pH has a lower energy barrier than that of high pH, facilitating the transformation from proton to H*. Furthermore, the quantitative relationship between dehalogenation efficiency and energy consumption shows an exponential increase of energy consumption for dehalogenation efficiency increasing from 90% to 100%. Lastly, challenges and perspectives are discussed for efficient dehalogenation and practical applications.
Collapse
Affiliation(s)
- Yun Guo
- State Key Laboratory of Pollution Control and Resource Reuse, Shanghai Institute of Pollution Control and Ecological Security, Tongji Advanced Membrane Technology Center, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Yang Li
- State Key Laboratory of Pollution Control and Resource Reuse, Shanghai Institute of Pollution Control and Ecological Security, Tongji Advanced Membrane Technology Center, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Zhiwei Wang
- State Key Laboratory of Pollution Control and Resource Reuse, Shanghai Institute of Pollution Control and Ecological Security, Tongji Advanced Membrane Technology Center, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China.
| |
Collapse
|
2
|
Yang Y, Wei X, Miao J, Zhang R, Xu H, Liu J, Zhu S. Electrochemical Degradation of 4-Fluorophenol in a Moveable Pd-Polypyrrole Catalyst-Mediated Reactor. Electrocatalysis (N Y) 2021. [DOI: 10.1007/s12678-021-00696-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
3
|
Metallic nanoparticles for electrocatalytic reduction of halogenated organic compounds: A review. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138039] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
4
|
Ravi PV, Thangadurai DT, Nehru K, Lee YI, Nataraj D, Thomas S, Kalarikkal N, Jose J. Surface and morphology analyses, and voltammetry studies for electrochemical determination of cerium(iii) using a graphene nanobud-modified-carbon felt electrode in acidic buffer solution (pH 4.0 ± 0.05). RSC Adv 2020; 10:37409-37418. [PMID: 35521276 PMCID: PMC9057166 DOI: 10.1039/d0ra07555h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 09/25/2020] [Indexed: 12/25/2022] Open
Abstract
Trace determination of radioactive waste, especially Ce3+, by electrochemical methods has rarely been attempted. Ce3+ is (i) a fluorescence quencher, (ii) an antiferromagnet, and (iii) a superconductor, and it has been incorporated into fast scintillators, LED phosphors, and fluorescent lamps. Although Ce3+ has been utilized in many industries due to its specific properties, it causes severe health problems to human beings because of its toxicity. Nanomaterials with fascinating electrical properties can play a vital role in the fabrication of a sensor device to detect the analyte of interest. In the present study, surfactant-free 1,8-diaminonaphthalene (DAN)-functionalized graphene quantum dots (DAN-GQDs) with nanobud (NB) morphology were utilized for the determination of Ce3+ through electrochemical studies. The working electrode, graphene nanobud (GNB)-modified-carbon felt (CF), was developed by a simple drop-coating method for the sensitive detection of Ce3+ in acetate buffer solution (ABS, pH 4.0 ± 0.05) at a scan rate of 50 mV s−1 using cyclic voltammetry (CV) and differential pulse voltammetry (DPV) techniques. CV and DPV studies validated the existence of distinctive peaks at approximately +0.20 and +0.93 V (vs. SCE), respectively, with a limit of detection of approximately 2.60 μM. Furthermore, electrochemical studies revealed that the GNB-modified-CF electrode was (i) stable even after fifteen cycles, (ii) reproducible, (iii) selective towards Ce3+, (iv) strongly pH-dependent, and (v) favored Ce3+ sensing only at pH 4.0 ± 0.05. Impedance spectroscopy results indicated that the GNB-modified-CF electrode was more conductive (1.38 × 10−4 S m−1) and exhibited more rapid electron transfer than bare CF, which agrees with the attained Randles equivalent circuit. Microscopy (AFM, FE-SEM, and HR-TEM), spectroscopy (XPS and Raman), XRD, and energy-dispersive X-ray (EDX) analyses of the GNB-modified-CF electrode confirmed the adsorption of Ce3+ onto the electrode surface and the size of the electrode material. Ce3+ nanobuds increased from 35–40 to 50–55 nm without changing their morphology. The obtained results provide an insight into the determination of Ce3+ to develop an electrochemical device with low sensitivity. GNB-modified – CF electrode was utilized to determine Ce3+ with LoD ca. 2.60 μM.![]()
Collapse
Affiliation(s)
- Pavithra V Ravi
- Department of Nanoscience and Technology, Sri Ramakrishana Engineering College, Affiliated to Anna University Coimbatore - 641 022 Tamilnadu India
| | - Daniel T Thangadurai
- Department of Nanoscience and Technology, Sri Ramakrishana Engineering College, Affiliated to Anna University Coimbatore - 641 022 Tamilnadu India
| | - Kasi Nehru
- Department of Chemistry, Anna University - Bharathidasan Institute of Technology Tiruchirappalli - 620 024 Tamilnadu India
| | - Yong Ill Lee
- Department of Chemistry, Changwon National University Changwon 641-773 South Korea
| | - Devaraj Nataraj
- Department of Physics, Bharathiar University Coimbatore - 641 046 Tamilnadu India
| | - Sabu Thomas
- International and Inter-University Centre for Nanoscience and Nontechnology, Mahatma Gandhi University Kottayam - 686 560 Kerala India
| | - Nandakumar Kalarikkal
- International and Inter-University Centre for Nanoscience and Nontechnology, Mahatma Gandhi University Kottayam - 686 560 Kerala India
| | - Jiya Jose
- International and Inter-University Centre for Nanoscience and Nontechnology, Mahatma Gandhi University Kottayam - 686 560 Kerala India
| |
Collapse
|
5
|
Enhanced electrochemical dechlorination of 4-chlorophenol on a nickel foam electrode modified with palladium, polypyrrole and graphene. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114099] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
|
6
|
Ashassi-Sorkhabi H, Kazempour A. Incorporation of organic/inorganic materials into polypyrrole matrix to reinforce its anticorrosive properties for the protection of steel alloys: A review. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113085] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
7
|
Dighole RP, Munde AV, Mulik BB, Sathe BR. Bi 2O 3 Nanoparticles Decorated Carbon Nanotube: An Effective Nanoelectrode for Enhanced Electrocatalytic 4-Nitrophenol Reduction. Front Chem 2020; 8:325. [PMID: 32457869 PMCID: PMC7227376 DOI: 10.3389/fchem.2020.00325] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 03/30/2020] [Indexed: 12/19/2022] Open
Abstract
4-Nitrophenol (4-NP) is present in most industrial waste water resources as an organic pollutant, and is a highly toxic and environmentally hazardous pollutant. Herein, we report that bismuth oxide (Bi2O3) decorated multi-walled carbon nanotubes (Bi2O3@MWCNTs) are the most prominent electrocatalyst for 4-NP electroreduction in acidic conditions. The electrocatalyst is synthesized by a simple chemical reduction method using ethylene glycol as a capping agent. The synthesized Bi2O3@MWCNTs electrocatalyst has been well-characterized by Fourier-transform infrared (FT-IR) spectroscopy, transmission electron microscopy (TEM), X-ray diffraction (XRD), and Raman spectroscopy. Bi2O3@MWCNTs have a cubic structure which is confirmed by XRD. TEM imaging reveals Bi2O3 NPs are ~2 nm in size, are grown on MWCNTs and that these nanoparticles are active toward 4-NP electroreduction. The electrochemical studies by cyclic voltammetry measurements show that the Bi2O3@MWCNTs electrocatalyst can sense 4-NP at a very low potential i.e., -0.17 vs. saturated calomel electrode (SCE). Furthermore, electroanalytical parameters like scan rate and concentration dependence were studied with electrochemcial impedance spectroscopy (EIS) and the effect of pH on cathodic current was examined under experimental conditions. The lower limit of detection (LOD) was found to be 0.1 μM for the Bi2O3@MWCNTs nanomaterial and is excellent toward 4-NP. The present study has applications for reducing water pollution and for sorting out related issues.
Collapse
Affiliation(s)
| | | | | | - Bhaskar R. Sathe
- Department of Chemistry, Dr. Babasaheb Ambedkar Marathwada University Aurangabad, Aurangabad, India
| |
Collapse
|
8
|
Yin H, Cao X, Lei C, Chen W, Huang B. Insights into Electroreductive Dehalogenation Mechanisms of Chlorinated Environmental Pollutants. ChemElectroChem 2020. [DOI: 10.1002/celc.202000067] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Hanshuang Yin
- College of Environmental Science and Engineering, Hunan University Key Laboratory of Environmental Biology and Pollution ControlHunan University, Ministry of Education Changsha 410082 China
| | - Xingkai Cao
- College of Environmental Science and Engineering, Hunan University Key Laboratory of Environmental Biology and Pollution ControlHunan University, Ministry of Education Changsha 410082 China
| | - Chao Lei
- School of Hydraulic EngineeringChangsha University of Science & Technology Changsha 410114 China
| | - Wenqian Chen
- Department of Chemical Engineering and TechnologyImperial College London Exhibition Road London SW7 2AZ UK
| | - Binbin Huang
- College of Environmental Science and Engineering, Hunan University Key Laboratory of Environmental Biology and Pollution ControlHunan University, Ministry of Education Changsha 410082 China
| |
Collapse
|
9
|
A Polypyrrole-Modified Pd-Ag Bimetallic Electrode for the Electrocatalytic Reduction of 4-Chlorophenol. Catalysts 2019. [DOI: 10.3390/catal9110931] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
A polypyrrole-modified bimetallic electrode composed of Pd-Ag on a Ti substrate (Pd-Ag/PPY/Ti) was successfully prepared via a chemical deposition method, and was applied to the electrocatalytic hydrodechlorination of 4-chlorophenol (4-CP) in aqueous solution. The electrode was characterized by cyclic voltammetry (CV), scanning electron microscopy (SEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). Various influences on the dechlorination efficiency of 4-chlorophenol, including applied current, initial pH value, and temperature, were studied. The dechlorination efficiency of 4-CP reached 94% within 120 min under the optimum conditions, i.e., a dechlorination current of 6 mA, an initial pH of 2.30, and a temperature of 303 K. The apparent activation energy of the dechlorination of 4-CP by the Pd-Ag/PPY/Ti electrode was calculated to be 49.6 kJ/mol. The equivalent conversion rate constant kPd was 0.63 L.gPd−1·min−1, which was higher than the findings presented in comparable literature. Thus, a highly effective bimetallic electrode with promising application prospects and low Pd loading was fabricated.
Collapse
|
10
|
Zhao P, LeSergent LJ, Farnese J, Wen JZ, Ren CL. Electrophoretic deposition of carbon nanotubes on semi-conducting and non-conducting substrates. Electrochem commun 2019. [DOI: 10.1016/j.elecom.2019.106558] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
|
11
|
Lan L, Liu Y, Liu S, Ma X, Li X, Dong Z, Xia C. Effect of the supports on catalytic activity of Pd catalysts for liquid-phase hydrodechlorination/hydrogenation reaction. ENVIRONMENTAL TECHNOLOGY 2019; 40:1615-1623. [PMID: 29319422 DOI: 10.1080/09593330.2018.1426645] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Accepted: 01/08/2018] [Indexed: 06/07/2023]
Abstract
Carbon nanotubes (CNTs), activated carbon (AC), graphene, and aluminum oxide (Al2O3) supported 5% Pd catalysts were prepared by the conventional impregnation method, and catalytic activity was tested in the hydrogenation of 4-chlorophenol (4-CP) and nitrobenzene (NB) under ambient conditions (313 K and atmospheric pressure). It was found that catalytic activity was greatly affected by the supports. Moreover, Pd/CNTs catalyst exhibited much higher catalytic activity than the other three supported Pd catalysts. The mechanism of this phenomenon was studied through catalyst characterization (ICP-MS, Brunauer-Emmett-Teller [BET], TEM, and SEM). It was found that the mean particle size of Pd nanoparticles for Pd/CNTs (4.3 nm) was smaller than that for Pd/AC (6.9 nm), Pd/Al2O3 (5.0 nm), and Pd/graphene (5.2 nm). Moreover, the actual loading amounts of Pd and BET surface areas were not the main reasons for the different catalytic activity of the four supported Pd catalysts. Above all, the smaller Pd particles of Pd/CNTs enabled the Pd/CNTs catalyst to exhibit much higher catalytic activity for the hydrogenation reactions.
Collapse
Affiliation(s)
- Lijuan Lan
- a School of Environment and Materials Engineering , Yantai University , Yantai , People's Republic of China
| | - Ying Liu
- b School of Resources and Environmental Engineering , Ludong University , Yantai , People's Republic of China
| | - Sujing Liu
- b School of Resources and Environmental Engineering , Ludong University , Yantai , People's Republic of China
| | - Xuanxuan Ma
- b School of Resources and Environmental Engineering , Ludong University , Yantai , People's Republic of China
| | - Xiaoqiang Li
- a School of Environment and Materials Engineering , Yantai University , Yantai , People's Republic of China
| | - Zhicheng Dong
- b School of Resources and Environmental Engineering , Ludong University , Yantai , People's Republic of China
| | - Chuanhai Xia
- b School of Resources and Environmental Engineering , Ludong University , Yantai , People's Republic of China
| |
Collapse
|
12
|
Pang LY, Wang P, Gao JJ, Wen Y, Liu H. An active metal-organic anion framework with highly exposed SO42− on {001} facets for the enhanced electrochemical detection of trace Fe3+. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.01.067] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
|
13
|
Liu Q, Shen Y, Song S, He Z. Enhanced electrocatalytic hydrodechlorination of 2,4-dichlorophenoxyacetic acid by a Pd-Co3O4/Ni foam electrode. RSC Adv 2019; 9:12124-12133. [PMID: 35517021 PMCID: PMC9063476 DOI: 10.1039/c9ra01843c] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Accepted: 04/09/2019] [Indexed: 11/21/2022] Open
Abstract
A new Pd-Co3O4/Ni foam electrode was synthesized by a facile two-step method comprising co-electrodeposition and calcination. Compared with Ni foam-supported Pd electrodes obtained by electrodeposition or chemical deposition, the new Pd-Co3O4/Ni foam electrode exhibited greatly enhanced catalytic hydrodechlorination activity. The introduction of Co3O4 reduced the amount of Pd required. For the same degree of dechlorination of 2,4-D, only 25% of the Pd was required in the Pd-Co3O4/Ni foam electrode compared with the Ni foam electrode prepared by chemical deposition. Various characterizations indicated that Co3O4 on the surface of the Ni foam enhanced catalytic performance through accelerated generation of atomic H*. In addition, the good distribution of macropores, providing a larger specific surface area and lower electron transfer impedance, enabled more adsorption of atomic . The Pd-Co3O4/Ni foam electrode enhanced the electrocatalytic dechlorination performance.![]()
Collapse
Affiliation(s)
- Qiuxiang Liu
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals
- Zhejiang University of Technology
- Hangzhou 310032
- People's Republic of China
- College of Environment
| | - Yanting Shen
- College of Environment
- Zhejiang University of Technology
- Hangzhou 310032
- People's Republic of China
| | - Shuang Song
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals
- Zhejiang University of Technology
- Hangzhou 310032
- People's Republic of China
- College of Environment
| | - Zhiqiao He
- College of Environment
- Zhejiang University of Technology
- Hangzhou 310032
- People's Republic of China
| |
Collapse
|
14
|
Ternary nanocomposite designed by MWCNT backbone PPy/Pd for efficient catalytic approach toward reduction and oxidation reactions. ADV POWDER TECHNOL 2018. [DOI: 10.1016/j.apt.2018.08.020] [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]
|
15
|
The Preparation of Pd/Foam-Ni Electrode and Its Electrocatalytic Hydrodechlorination for Monochlorophenol Isomers. Catalysts 2018. [DOI: 10.3390/catal8090378] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Noble metal palladium modified foamed nickel electrode (Pd/foam-Ni) was prepared by electrodeposition method. The fabricated electrode showed better catalytic performance than the Pd/foam-Ni prepared by conventional electroless deposition. The catalysts were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and transmission electron microscopy (TEM). Electrocatalytic activity of the Pd/Ni was studied for the hydrodechlorination of monochlorophenol isomers. The Pd/Ni exhibited good catalytic activity for 3-chlorophenol (3-CP). Complete decomposition of chlorophenol isomers could be achieved within 2 h, and the hydrodechlorination process conformed to the pseudo-first-order kinetic model. It showed a supreme stability after recycling for 5 times. The Pd/Ni exhibited a promising application prospect with high effectiveness and low Pd loading.
Collapse
|