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Mohanty UA, Sahoo DP, Das KK, Paramanik L, Parida K. Facilitated Visible-Light-Driven Peroxymonosulfate Activation by a Co-Fe Layered Double Hydroxide Derived p-n Heterostructure for Sulfadiazine Degradation: Affecting Parameters, Kinetics, and Mechanistic Insights. Inorg Chem 2024; 63:1919-1937. [PMID: 38207280 DOI: 10.1021/acs.inorgchem.3c03582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2024]
Abstract
The utilization of multivalence ionic metal species generated through a peroxymonosulfate (PMS)-assisted photocatalytic system is a promising platform for the selective degradation of water contaminants. However, achieving an effective electron transport and enhanced separation efficiency for these metal species is a daunting challenge. Thus, our current study addresses this challenge by using a Co-Fe-based layered-double-hydroxide template to synthesize a Co3O4/FeCo2O4 p-n heterojunction composite via a simple monosynthetic route. The resultant composite is thoroughly validated through advanced characterization techniques that efficiently activate PMS for sulfadiazine (SDZ) degradation under visible light, achieving a remarkable degradation efficiency of up to 90%. This accomplishment is attributed to factors including intimate interfacial contact, excellent light harvesting, mesoporosity, and oxygen vacancies within the composite. The formation of a distinct p-n heterojunction following the S-scheme charge dynamic significantly enhances photogenerated carrier separation and reduces charge recombination. The research delves into comprehensive investigations including degradation studies, active species trapping experiments, parameter exploration, and in-depth liquid chromatography-mass spectrometry for analysis of the degradation byproducts and pathway. Induced oxygen vacancies, strategically placed active surface sites, and mesoporosity in the Co3O4/FeCo2O4 composite synergistically boosted the sluggish PMS activation, leading to enhanced SDZ degradation. This study introduces a new perspective by demonstrating the potential of a single-material, mixed-metal oxide-based p-n heterojunction photocatalytic system following the S-scheme charge-transfer route for SDZ degradation. The findings contribute toward emphasizing the importance of tailored composite materials in tackling persistent contaminants.
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Affiliation(s)
- Upali Aparajita Mohanty
- Centre for Nano Science and Nano Technology, Siksha 'O' Anusandhan (Deemed to be University), Bhubaneswar 751030, India
| | - Dipti Prava Sahoo
- Centre for Nano Science and Nano Technology, Siksha 'O' Anusandhan (Deemed to be University), Bhubaneswar 751030, India
| | - Kundan Kumar Das
- Centre for Nano Science and Nano Technology, Siksha 'O' Anusandhan (Deemed to be University), Bhubaneswar 751030, India
| | - Lekha Paramanik
- Centre for Nano Science and Nano Technology, Siksha 'O' Anusandhan (Deemed to be University), Bhubaneswar 751030, India
| | - Kulamani Parida
- Centre for Nano Science and Nano Technology, Siksha 'O' Anusandhan (Deemed to be University), Bhubaneswar 751030, India
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2
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Bao S, Yu X, Li X. Study on the dominant mechanism of direct hole oxidation for the photodegradation of tetracycline. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:3786-3799. [PMID: 38091223 DOI: 10.1007/s11356-023-31003-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 11/06/2023] [Indexed: 01/19/2024]
Abstract
Antibiotic contamination has a significant negative impact on China, one of the largest producers and consumers of antibiotics worldwide. In this study, a three-dimensional flower-like structure of CoFe-LDHs was used to efficiently degrade tetracycline (TC) in a system triggered by peroxymonosulfate (PMS) and exposed to visible light. After exploring the effects of different metal ratios, catalyst dosage, initial TC concentrations, and pH, the optimal reaction conditions were determined. In comparison to pure CoFe-LDHs, the TC elimination rate was dramatically increased by the addition of the PMS. The strong environmental resistance, excellent stability and reusability, and universal flexibility were shown. The quenching experiments and electron spin resonance detection showed that the creation of reactive oxygen species was facilitated by the synergistic transmission of electrons between the active bimetallic components. Further, photogenerated holes was the dominant oxidizing species, which contributed more to the degradation of TC. The potential degradation pathways and intermediate toxicity of TC were suggested. This work offers a new method dominated by photogenerated holes for efficiently removing TC effluent.
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Affiliation(s)
- Siqi Bao
- School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun, 130022, People's Republic of China.
- Jilin Provincial International Joint Research Center of Photo-Functional Materials and Chemistry, Changchun, 130022, People's Republic of China.
| | - Xiaotong Yu
- School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun, 130022, People's Republic of China
- Jilin Provincial International Joint Research Center of Photo-Functional Materials and Chemistry, Changchun, 130022, People's Republic of China
| | - Xiaolin Li
- College of Tourism and Geography Science, Jilin Normal University, Changchun, 130022, People's Republic of China
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3
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Design of hollow nanostructured photocatalysts for clean energy production. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
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4
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Yang J, Guo B, Li L, Chen Q, Shen C, Zhou J. Enhancement of peroxymonosulfate activation for 2,4-dichlorophenoxyacetic acid removal by MoSe 2 induced Fe redox cycles. CHEMOSPHERE 2023; 311:137170. [PMID: 36356816 DOI: 10.1016/j.chemosphere.2022.137170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 10/16/2022] [Accepted: 11/05/2022] [Indexed: 06/16/2023]
Abstract
The limited regeneration of Fe2+ in the Fe-catalyzed advanced oxidation processes (AOPs) constrained its application for the removal of organic pollutants. Herein, MoSe2 was introduced to promote the degradation of 2,4-dichlorophenoxyacetic acid (2,4-D) in the Fe2+/PMS system. Compared with Fe2+/PMS processes, the 2,4-D degradation efficiency and PMS decomposition rate respectively increased by 73.8% and 84.2% in the MoSe2/Fe2+/PMS system. DFT simulation results suggested that Se atoms acted smoothly as the bridge supporting the charge transfer from Mo to adjacent Fe atoms, which led to the reduction of Fe3+. The rapid regeneration of Fe2+ boosted the activation of PMS and the degradation of pollutants. Additionally, the electron paramagnetic resonance (EPR) and quenching experiments results indicated that SO4∙-, ∙OH, and 1O2 accounted for 2,4-D degradation, and SO4∙- and 1O2 predominated the reaction. The Mo based co-catalysts showed better co-catalytic effect than the W counterparts, and the moderate adsorption for PMS and lower electron transfer electron transfer resistance accounted for the more excellent co-catalytic performance of MoSe2 than that of WSe2. In addition, the degradation efficiency of 2,4-D was up to 95.5% after five cycles of MoSe2 in the co-catalytic system. The coexistent humic acid (HA) and Cl- showed ignorant negative effect on the degradation, while HCO3- would depress the oxidation reaction. The acidic etching wastewater can be applied as the Fe ions source in this co-catalytic process to remove 2,4-D effectively.
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Affiliation(s)
- Jiaojiao Yang
- College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, PR China
| | - Binyu Guo
- College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, PR China
| | - Lei Li
- College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, PR China
| | - Quanyuan Chen
- College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, PR China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, PR China
| | - Chensi Shen
- College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, PR China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, PR China
| | - Juan Zhou
- College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, PR China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, PR China.
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5
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Hazaraimi MH, Goh PS, Lau WJ, Ismail AF, Wu Z, Subramaniam MN, Lim JW, Kanakaraju D. The state-of-the-art development of photocatalysts for the degradation of persistent herbicides in wastewater. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 843:156975. [PMID: 35764157 DOI: 10.1016/j.scitotenv.2022.156975] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 06/15/2022] [Accepted: 06/21/2022] [Indexed: 06/15/2023]
Abstract
Herbicides are one of the most recurring pollutants in the aquatic system due to their widespread usage in the agriculture sector for weed control. Semiconductor-based photocatalysts have gained recognition due to their ability to degrade and mineralize pollutants into harmless by-products completely. Lately, many studies have been done to design photocatalysts with efficient separation of photogenerated charge carriers and enhanced light absorption. Photocatalyst engineering through doping with metal and non-metal elements and the formation of heterojunction are proven effective for minimizing the recombination of electron-hole pairs and enlarging the absorption in the visible light region. This review focuses on discussing and evaluating the recent progress in the types of photocatalysts and their performance in the remediation of herbicides in wastewater. The development of innovative hybrid technologies is also highlighted. The limitations and challenges of photocatalysis technology in the present literature have been identified, and future studies are recommended.
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Affiliation(s)
- M H Hazaraimi
- Advanced Membrane Technology Research Center, School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia
| | - P S Goh
- Advanced Membrane Technology Research Center, School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia.
| | - W J Lau
- Advanced Membrane Technology Research Center, School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia
| | - A F Ismail
- Advanced Membrane Technology Research Center, School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia
| | - Z Wu
- Aston Institute of Materials Research, School of Engineering and Applied Science, Aston University, Birmingham B4 7ET, UK
| | - M N Subramaniam
- Aston Institute of Materials Research, School of Engineering and Applied Science, Aston University, Birmingham B4 7ET, UK
| | - J W Lim
- HICoE-Centre for Biofuel and Biochemical Research, Institute of Self-Sustainable Building, Department of Fundamental and Applied Sciences, Universiti Teknologi PETRONAS, Seri Iskandar, Perak Darul Ridzuan 32610, Malaysia
| | - D Kanakaraju
- Faculty of Resource and Science Technology, Universiti Malaysia, Sarawak, 94300 Kota Samarahan, Sarawak, Malaysia
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Feng W, Faraj Y, Yan Y, An Y, Xie R, Lai B. Novel Pyrolusite-Templated Biochar as an Outstanding Catalyst for Persulfate Activation: Structural Design, Synergistic Effect, and Mechanism. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.1c04459] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Wenwei Feng
- MOE Key Laboratory of Deep Earth Science and Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, P. R. China
| | - Yousef Faraj
- Faculty of Science and Engineering, Department of Chemical Engineering, University of Chester, Chester CH2 4NU, United Kingdom
| | - Yuan Yan
- MOE Key Laboratory of Deep Earth Science and Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, P. R. China
| | - Yaoxiao An
- MOE Key Laboratory of Deep Earth Science and Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, P. R. China
| | - Ruzhen Xie
- MOE Key Laboratory of Deep Earth Science and Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, P. R. China
| | - Bo Lai
- MOE Key Laboratory of Deep Earth Science and Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, P. R. China
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A critical review on graphitic carbon nitride (g-C3N4)-based composites for environmental remediation. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119769] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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8
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Bobde P, Patel RK, Panchal D, Sharma A, Sharma AK, Dhodapkar RS, Pal S. Utilization of layered double hydroxides (LDHs) and their derivatives as photocatalysts for degradation of organic pollutants. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:59551-59569. [PMID: 34508320 DOI: 10.1007/s11356-021-16296-x] [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: 03/29/2021] [Accepted: 08/29/2021] [Indexed: 06/13/2023]
Abstract
Direct or indirect discharge of wastes containing organic pollutants have contributed to the environmental pollution globally. Decontamination of highly polluted natural resources such as water using an effective treatment is a great challenge for public health and environmental protection. Photodegradation of organic pollutants using efficient photocatalyst has attracted extensive interest due to their stability, effectiveness towards degradation efficiency, energy, and cost efficiency. Among various photocatalysts, layered double hydroxides (LDHs) and their derivatives have shown great potential towards photodegradation of organic pollutants. Herein, we review the mechanism, key factors, and performance of LDHs and their derivatives for the photodegradation of organic pollutants. LDH-based photocatalysts are classified into three different categories namely unmodified LDHs, modified LDHs, and calcined LDHs. Each LDH category is reviewed separately in terms of their photodegradation efficiency and kinetics of degradation. In addition, the effect of photocatalyst dose, pH, and initial concentration of pollutant as well as photocatalytic mechanisms are also summarized. Lastly, the stability and reusability of different photocatalysts are discussed. Challenges related to modeling the LDHs and its derivatives are addressed in order to improve their functional capacity.
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Affiliation(s)
- Prakash Bobde
- Department of Research & Development, Energy Acres Building, University of Petroleum & Energy Studies (UPES), Bidholi, Dehradun, Uttarakhand, 248007, India
- Wastewater Technology Division, CSIR-National Environmental Engineering Research Institute, Nagpur, Maharashtra, 440020, India
| | - Ravi Kumar Patel
- Incubation, Energy Acres Building, University of Petroleum & Energy Studies (UPES), Bidholi, Dehradun, Uttarakhand, 248007, India
| | - Deepak Panchal
- Wastewater Technology Division, CSIR-National Environmental Engineering Research Institute, Nagpur, Maharashtra, 440020, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Abhishek Sharma
- Wastewater Technology Division, CSIR-National Environmental Engineering Research Institute, Nagpur, Maharashtra, 440020, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Amit Kumar Sharma
- Centre for Alternate Energy Research, University of Petroleum and Energy Studies (UPES), Bidholi, Dehradun, Uttarakhand, 248007, India
| | - Rita S Dhodapkar
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
- Director's Research Cell, CSIR-National Environmental Engineering Research Institute, Nagpur, Maharashtra, 440020, India
| | - Sukdeb Pal
- Wastewater Technology Division, CSIR-National Environmental Engineering Research Institute, Nagpur, Maharashtra, 440020, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
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9
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Luo H, Zhou X, Chen Q, Zhou J. Removal of 2,4-dichlorophenoxyacetic acid by the boron-nitrogen co-doped carbon nanotubes: Insights into peroxymonosulfate adsorption and activation. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.118196] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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10
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Zhao G, Hu J, Zou J, Yu J, Jiao F, Chen X. The construction of NiFeS x/g-C 3N 4 composites with high photocatalytic activity towards the degradation of refractory pollutants. Dalton Trans 2021; 50:2436-2447. [PMID: 33507196 DOI: 10.1039/d0dt04096g] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work, a novel NiFe layered double hydroxide-derived sulfide (NiFeSx)-modified g-C3N4 nanosheet photocatalyst (NiFeSx/g-C3N4) was synthesized, and its morphology, structure and visible light absorption capacity were simultaneously characterized by XRD, SEM, TEM, FT-IR, XPS, UV-Vis DRS, PL techniques and EIS Nyquist plots. Furthermore, it was discovered that at an optimum mass ratio of 3% (NiFeSx to g-C3N4), 3% NiFeSx/g-C3N4 composites exhibited the best degradation efficiency toward tetracycline hydrochloride refractory pollutants. The degradation rate of tetracycline hydrochloride by 3% NiFeSx/g-C3N4 composites was 92.54% under 70 min of visible light illumination, which was about 2.61 times higher than that of pure g-C3N4. The improved degradation activity may be attributed to the synergistic effect between the two constituents of as-synthesized composites, and the formed heterojunction reduced the efficiency of photogenerated carriers. More importantly, this work also gives some inspiration to synthesize some similar photocatalysts for a targeted environmental remediation.
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Affiliation(s)
- Guoqing Zhao
- School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People's Republic of China.
| | - Jun Hu
- School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People's Republic of China.
| | - Jiao Zou
- School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People's Republic of China.
| | - Jingang Yu
- School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People's Republic of China.
| | - Feipeng Jiao
- School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People's Republic of China.
| | - Xiaoqing Chen
- School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People's Republic of China.
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Khataee A, Fazli A, Zakeri F, Joo SW. Synthesis of a high-performance Z-scheme 2D/2D WO3@CoFe-LDH nanocomposite for the synchronic degradation of the mixture azo dyes by sonocatalytic ozonation process. J IND ENG CHEM 2020. [DOI: 10.1016/j.jiec.2020.05.026] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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12
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Li MH, Da Oh W, Lin KYA, Hung C, Hu C, Du Y. Development of 3-dimensional Co 3O 4 catalysts with various morphologies for activation of Oxone to degrade 5-sulfosalicylic acid in water. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 724:138032. [PMID: 32408427 DOI: 10.1016/j.scitotenv.2020.138032] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 03/12/2020] [Accepted: 03/17/2020] [Indexed: 06/11/2023]
Abstract
Since 5-sulfosalicylic acid (SFA) has been increasingly released to the environment, SO4--based oxidation processes using Oxone have been considered as useful methods to eliminate SFA. As Co3O4 has been a promising material for OX activation, the four 3D Co3O4 catalysts with distinct morphologies, including Co3O4-C (with cubes), Co3O4-P (with plates), Co3O4-N (with needles) and Co3O4-F (with floral structures), are fabricated for activating OX to degrade SFA. In particular, Co3O4-F not only exhibits the highest surface area but also possesses the abundant Co2+ and more reactive surface, making Co3O4-F the most advantageous 3D Co3O4 catalyst for OX activation to degrade SFA. The mechanism of SFA by this 3D Co3O4/OX is also investigated and the corresponding SFA degradation pathway has been elucidated. The catalytic activities of Co3O4 catalysts can be correlated to physical and chemical properties which were associated with particular morphologies to provide insights into design of 3D Co3O4-based catalysts for OX-based technology to degrade emerging contaminants, such as SFA.
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Affiliation(s)
- Mei-Hsuan Li
- Department of Environmental Engineering, Innovation and Development Center of Sustainable Agriculture, Research Center of Sustainable Energy and Nanotechnology, National Chung Hsing University, 250 Kuo-Kuang Road, Taichung, Taiwan
| | - Wen Da Oh
- School of Chemical Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia
| | - Kun-Yi Andrew Lin
- Department of Environmental Engineering, Innovation and Development Center of Sustainable Agriculture, Research Center of Sustainable Energy and Nanotechnology, National Chung Hsing University, 250 Kuo-Kuang Road, Taichung, Taiwan.
| | - Ching Hung
- Department of Civil Engineering, National Cheng Kung University, Tainan City, Taiwan
| | - Chechia Hu
- Department of Chemical Engineering, R&D Center for Membrane Technology, Chung Yuan Christian University, Chungli Dist., Taoyuan City 32023, Taiwan.
| | - Yunchen Du
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, China.
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13
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Zhao G, Zou J, Chen X, Zhang T, Yu J, Zhou S, Li C, Jiao F. Integration of Microfiltration and Visible-Light-Driven Photocatalysis on a ZnWO4 Nanoparticle/Nickel–Aluminum-Layered Double Hydroxide Membrane for Enhanced Water Purification. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.9b06831] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Guoqing Zhao
- School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People’s Republic of China
| | - Jiao Zou
- School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People’s Republic of China
| | - Xiaoqing Chen
- School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People’s Republic of China
| | - Taiheng Zhang
- School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People’s Republic of China
| | - Jingang Yu
- School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People’s Republic of China
| | - Shu Zhou
- School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People’s Republic of China
| | - Caifeng Li
- School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People’s Republic of China
| | - Feipeng Jiao
- School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People’s Republic of China
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Calisto JS, Pacheco IS, Freitas LL, Santana LK, Fagundes WS, Amaral FA, Canobre SC. Adsorption kinetic and thermodynamic studies of the 2, 4 - dichlorophenoxyacetate (2,4-D) by the [Co-Al-Cl] layered double hydroxide. Heliyon 2019; 5:e02553. [PMID: 31872095 PMCID: PMC6911883 DOI: 10.1016/j.heliyon.2019.e02553] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Revised: 08/12/2019] [Accepted: 09/27/2019] [Indexed: 11/27/2022] Open
Abstract
[Co-Al-Cl] layered double hydroxide (LDH) obtained by co-precipitation at constant pH 8 presented a single phase in a hexagonal unit cell parameters similar to the hydrotalcite (JCPDS 14-191) belonging to the rhombohedral crystal system and space group R (-3)m . The adsorption kinetics of 2,4-D onto [Co-Al-Cl] LDH was better described by the Pseudo Second-Order (best adjust R2 = 0.9998 for 60 mg L-1 2,4-D adsorption). Intra-particle diffusion model was not the sole rate-controlling factor, indicating the adsorption of 2,4-D by the [Co-Al-Cl] LDH is a complex process for the experimental conditions performed, involving both boundary layer and intra-particle diffusion. The adsorption isotherm adjusted better to the Freundlich model (R2 = 0.9845) and the ΔH° value of - 51.18 kJ mol-1 indicated the predominance of the physical adsorption. The FT-IR spectrum of LDH after adsorption presented 2,4-D bands together with those of LDH and XRD showed an increase in the interlamellar distance (d 003) due to the intercalation of 2,4-D in the interlayer structure of the [Co-Al-Cl] LDH, corroborating inter and intra-particle adsorption data. Thus, [Co-Al-Cl] LDH, commonly used as electrodes in supercapacitors, can be effectively used as an adsorbent for the removal of 2,4-D from contaminated waters.
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Affiliation(s)
| | | | | | | | | | | | - Sheila C. Canobre
- LAETE - Laboratório de Armazenamento de Energia e Tratamento de Efluentes, Institute of Chemistry, UFU- Uberlândia Federal University, João Naves de Ávila Avenue, 2121, 38400-902, Uberlândia- Minas Gerais, Brazil
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15
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Lu L, Luo C, Peng H, Jiang H, Lei M, Yin B. Access to Polycyclic Sulfonyl Indolines via Fe(II)-Catalyzed or UV-Driven Formal [2 + 2 + 1] Cyclization Reactions of N-((1H-indol-3-yl)methyl)propiolamides with NaHSO3. Org Lett 2019; 21:2602-2605. [DOI: 10.1021/acs.orglett.9b00573] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Lin Lu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, People’s Republic of China
| | - Chenguang Luo
- State Key Laboratory of Chemical Resource Engineering, College of Science, Beijing University of Chemical Technology, Beijing 100029, China
| | - Hui Peng
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, People’s Republic of China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, People’s Republic of China
| | - Ming Lei
- State Key Laboratory of Chemical Resource Engineering, College of Science, Beijing University of Chemical Technology, Beijing 100029, China
| | - Biaolin Yin
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, People’s Republic of China
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