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Ali N, Khan F, Song W, Khan I, Kareem A, Rahman S, Khan A, Ali F, Al Balushi RA, Al-Hinaai MM, Nawaz A. Robust polymer hybrid and assembly materials from structure tailoring to efficient catalytic remediation of emerging pollutants. CHEMOSPHERE 2024; 360:142408. [PMID: 38789056 DOI: 10.1016/j.chemosphere.2024.142408] [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: 03/27/2024] [Revised: 05/20/2024] [Accepted: 05/21/2024] [Indexed: 05/26/2024]
Abstract
A massive amount of toxic substances and harmful chemicals are released every day into the outer environment, imposing serious environmental impacts on both land and aquatic animals. To date, research is constantly in progress to determine the best catalytic material for the effective remediation of these harmful pollutants. Hybrid nanomaterials prepared by combining functional polymers with inorganic nanostructures got attention as a promising area of research owing to their remarkable multifunctional properties deriving from their entire nanocomposite structure. The versatility of the existing nanomaterials' design in polymer-inorganic hybrids, with respect to their structure, composition, and architecture, opens new prospects for catalytic applications in environmental remediation. This review article provides comprehensive detail on catalytic polymer nanocomposites and highlights how they might act as a catalyst in the remediation of toxic pollutants. Additionally, it provides a detailed clarification of the processing of design and synthetic ways for manufacturing polymer nanocomposites and explores further into the concepts of precise design methodologies. Polymer nanocomposites are used for treating pollutants (electrocatalytic, biocatalytic, catalytic, and redox degradation). The three catalytic techniques that are frequently used are thoroughly illustrated. Furthermore, significant improvements in the method through which the aforementioned catalytic process and pollutants are extensively discussed. The final section summarizes challenges in research and the potential of catalytic polymer nanocomposites for environmental remediation.
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Affiliation(s)
- Nisar Ali
- National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Huaiyin Institute of Technology, Huai'an, 223003, China; Department of Basic and Applied Sciences, College of Applied and Health Sciences, A'Sharqiyah University, P.O. Box 42, Ibra P.O. 400, Sultanate of Oman.
| | - Fawad Khan
- National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Huaiyin Institute of Technology, Huai'an, 223003, China
| | - Wang Song
- National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Huaiyin Institute of Technology, Huai'an, 223003, China
| | - Ibrahim Khan
- National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Huaiyin Institute of Technology, Huai'an, 223003, China
| | - Abdul Kareem
- National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Huaiyin Institute of Technology, Huai'an, 223003, China
| | - Suhaib Rahman
- National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Huaiyin Institute of Technology, Huai'an, 223003, China
| | - Adnan Khan
- Institute of Chemical Sciences, University of Peshawar, Khyber Pakhtunkhwa, 25120, Pakistan
| | - Farman Ali
- Department of Chemistry, Hazara University, Mansehra, 21300, Pakistan
| | - Rayya Ahmed Al Balushi
- Department of Basic and Applied Sciences, College of Applied and Health Sciences, A'Sharqiyah University, P.O. Box 42, Ibra P.O. 400, Sultanate of Oman
| | - Mohammad M Al-Hinaai
- Department of Basic and Applied Sciences, College of Applied and Health Sciences, A'Sharqiyah University, P.O. Box 42, Ibra P.O. 400, Sultanate of Oman
| | - Arif Nawaz
- Henan Key Laboratory of Photovoltaic Materials, School of Physics, Henan Normal University, Xinxiang 453007, China
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Du H, Hu X, Huang Y, Bai Y, Fei Y, Gao M, Li Z. A review of copper-based Fenton reactions for the removal of organic pollutants from wastewater over the last decade: different reaction systems. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:27609-27633. [PMID: 38589591 DOI: 10.1007/s11356-024-33220-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 04/02/2024] [Indexed: 04/10/2024]
Abstract
In recent years, as global industrialization has intensified, environmental pollution has become an increasingly serious problem. Improving water quality and achieving wastewater purification remain top priorities for environmental health initiatives. The Fenton process is favored by researchers due to its high efficiency and ease of operation. Central to the Fenton process is a catalyst used to activate hydrogen peroxide, rapidly degrading pollutants, improving water quality. Among various catalysts developed, copper-based catalysts have attracted considerable attention due to their affordability, high activity, and stable performance. Based on this, this paper reviews the development of copper-based Fenton systems over the past decade. It mainly involves the research and application of copper-based catalysts in different Fenton systems, including photo-Fenton, electro-Fenton, microwave-Fenton, and ultrasonic-Fenton. This review provides a fundamental reference for the subsequent studies of copper-based Fenton systems, contributing to the goal of transitioning these systems from laboratory research into practical environmental applications.
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Affiliation(s)
- Huixian Du
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, People's Republic of China
| | - Xuefeng Hu
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, People's Republic of China.
| | - Yao Huang
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, People's Republic of China
| | - Yaxing Bai
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, People's Republic of China
| | - Yuhuan Fei
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, People's Republic of China
| | - Meng Gao
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, People's Republic of China
| | - Zilong Li
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, People's Republic of China
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3
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Das TK, Jesionek M, Çelik Y, Poater A. Catalytic polymer nanocomposites for environmental remediation of wastewater. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 901:165772. [PMID: 37517738 DOI: 10.1016/j.scitotenv.2023.165772] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 07/15/2023] [Accepted: 07/23/2023] [Indexed: 08/01/2023]
Abstract
The removal of harmful chemicals and species from water, soil, and air is a major challenge in environmental remediation, and a wide range of materials have been studied in this regard. To identify the optimal material for particular applications, research is still ongoing. Polymer nanocomposites (PNCs), which combine the benefits of nanoparticles with polymers, an alternative to conventional materials, may open up new possibilities to overcome this difficulty. They have remarkable mechanical capabilities and compatibility due to their polymer matrix with a very high surface area to volume ratio brought about by their special physical and chemical properties, and the extremely reactive surfaces of the nanofillers. Composites also provide a viable answer to the separation and reuse problems that hinder nanoparticles in routine use. Understanding these PNCs materials in depth and using them in practical environmental applications is still in the early stages of development. The review article demonstrates a crisp introduction to the PNCs with their advantageous properties as a catalyst in environmental remediation. It also provides a comprehensive explanation of the design procedure and synthesis methods for fabricating PNCs and examines in depth the design methods, principles, and design techniques that guide proper design. Current developments in the use of polymer nanocomposites for the pollutant treatment using three commonly used catalytic processes (catalytic and redox degradation, electrocatalytic degradation, and biocatalytic degradation) are demonstrated in detail. Additionally, significant advances in research on the aforementioned catalytic process and the mechanism by which contaminants are degraded are also amply illustrated. Finally, there is a summary of the research challenges and future prospects of catalytic PNCs in environmental remediation.
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Affiliation(s)
- Tushar Kanti Das
- Institute of Physics - Center for Science and Education, Silesian University of Technology, Krasińskiego 8, 40-019 Katowice, Poland.
| | - Marcin Jesionek
- Institute of Physics - Center for Science and Education, Silesian University of Technology, Krasińskiego 8, 40-019 Katowice, Poland
| | - Yasemin Çelik
- Department of Materials Science and Engineering, Eskişehir Technical University, 26555 Eskişehir, Turkey
| | - Albert Poater
- Institute of Computational Chemistry and Catalysis, Department of Chemistry, University of Girona, c/Maria Aurèlia Capmany 69, 17003 Girona, Spain.
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Hsieh S, Lin PY, Lin IH, Beck DE, Lin CH. Assessing the contribution of semiconductors to the sustainable development goals (SDGs) from 2017 to 2022. Heliyon 2023; 9:e21306. [PMID: 38027584 PMCID: PMC10659998 DOI: 10.1016/j.heliyon.2023.e21306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Revised: 09/12/2023] [Accepted: 10/19/2023] [Indexed: 12/01/2023] Open
Abstract
Semiconductor development is a major driving force for global economic growth. However, synchronizing it with the Sustainable Development Goals (SDGs) set by the United Nations remains a critical challenge. To gain insight into this, we analyzed SDG-related publications on semiconductors from 2017 to 2022 using the SciVal database. The study found 77,706 documents related to SDGs in the field of semiconductor research, with an overall increase in the number of publications each year. The main focus of these publications was SDG 7 (Affordable and Clean Energy), accounting for 68.9 % of the total publication count. Additionally, the results indicate that semiconductors have multifaceted potential in advancing a range of SDGs. From fostering innovations in healthcare (SDG 3), ensuring clean water access (SDG 6), catalyzing transformative industrial growth (SDG 9), to contributing to climate mitigation strategies (SDG 13), semiconductors emerge as versatile drivers of sustainable development. The respective publication percentages for these goals were 7.3 %, 5.9 %, 9.7 %, and 4.4 %, underscoring their capacity to make substantial contributions across various facets of sustainability. It's worth noting that only 2.9 % of these publications stem from academia-industry collaborations. This indicates a pressing need to facilitate collaboration between academia and industry, as such partnerships have the potential to amplify the impact of semiconductor innovations on the SDGs. The novelty of this study lies in its specific exploration through a comprehensive analysis spanning five years, revealing the alignment between semiconductor advancements and the latest SDGs. It uncovers the significance of collaborative ecosystems involving research institutions, businesses, and governments. Through these results, our study addresses a gap in the existing literature and advances semiconductor contributions to the SDGs.
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Affiliation(s)
- Shuchen Hsieh
- Department of Chemistry, National Sun Yat-sen University, 70 Lien-Hai Rd., Kaohsiung, 80424, Taiwan
| | - Pei-Ying Lin
- Department of Chemistry, National Sun Yat-sen University, 70 Lien-Hai Rd., Kaohsiung, 80424, Taiwan
| | - I-Hui Lin
- Office of Institutional Research, National Sun Yat-sen University, 70 Lien-hai Rd., Kaohsiung, 80424, Taiwan
| | - David E. Beck
- Oxford Instruments Asylum Research, Inc., 7416 Hollister Ave., Santa Barbara, CA 93117, USA
| | - Ching-Hui Lin
- Center for Teacher Education, National Sun Yat-sen University, 70 Lien-hai Rd., Kaohsiung, 80424, Taiwan
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Hassan AF, Alshandoudi LM, Awad AM, Mustafa AA, Esmail G. Synthesis of nanomagnetite/copper oxide/potassium carrageenan nanocomposite for the adsorption and Photo-Fenton degradation of Safranin-O: kinetic and thermodynamic studies. Macromol Res 2023. [DOI: 10.1007/s13233-023-00147-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
Abstract
AbstractIn the current study, a novel nanomaterial called nanomagnetite/copper oxide/potassium carrageenan nanocomposite (MKCO) was fabricated to include Fenton (nanomagnetite, NM) and Fenton-like reagent (copper oxide nanoparticles, NCO) in a matrix of potassium carrageenan biopolymer. The prepared solid materials were characterized by different physicochemical techniques, such as TGA, N2 adsorption/desorption, SEM, TEM, XRD, DRS, pHPZC, and FTIR. The prepared MKCO showed unique properties like higher specific surface area of 652.50 m2/g, pore radius of 1.19 nm, pHPZC equals 7.80, and the presence of different surface chemical functional groups. Under various application conditions, comparative experiments between Safranin-O dye (SO) adsorption and Photo-Fenton catalytic degradation were conducted. After 24 h, MKCO had a maximum adsorption capacity of 384.61 mg/g at 42 °C, while the Photo-Fenton oxidation process took only 10 min to totally decompose 93% of SO at 21 °C. Based on the higher values of correlation coefficients, Langmuir’s adsorption model is the best-fitted adsorption model for SO onto all the prepared solid materials. Studies on SO adsorption’s kinetics and thermodynamics show that it is physisorption and that it operates according to endothermic, spontaneous, and PFO model processes. While, PFO, endothermic, and non-spontaneous processes are satisfied by the catalytic decomposition of SO. After five application cycles, MKCO demonstrated good catalyst reusability with a 3.4% decrease in degrading efficiency. For lower contaminant concentrations and shorter application times, Photo-Fenton catalytic degradation of organic pollutants is more effective than adsorption.
Graphical abstract
Fenton and Photo-Fenton degradation of Safranin-O
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6
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Heterogeneous electro-Fenton catalysis with novel bimetallic CoFeC electrode. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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7
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Synergistic removal of organic pollutants by Co-doped MIL-53(Al) composite through the integrated adsorption/photocatalysis. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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8
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Zou Y, Qi H, Sun Z. In-situ catalytic degradation of sulfamethoxazole with efficient CuCo-O@CNTs/NF cathode in a neutral electro-Fenton-like system. CHEMOSPHERE 2022; 296:134072. [PMID: 35216983 DOI: 10.1016/j.chemosphere.2022.134072] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 02/17/2022] [Accepted: 02/19/2022] [Indexed: 06/14/2023]
Abstract
In this paper, a CuCo-O@CNTs/NF electrode was successfully prepared and used for in-situ degradation of sulfamethoxazole (SMX) in an electro-Fenton-like system. Carbon nanotubes (CNTs) and coral-like copper-cobalt oxides were successively loaded on nickel foam (NF). CNTs contributed to improving the dispersibility and stability of copper-cobalt oxides, and the coral-like copper-cobalt oxide catalyst was anchored on CNTs without any adhesive. In the electro-Fenton-like system, dissolved oxygen can be reduced to superoxide anions in a one-electron step, which could be further transformed into hydrogen peroxide and then reacted with the active components on the electrode to generate reactive oxygen species (ROS) to participate in the degradation of SMX. Almost 100% SMX removal was obtained within 60 min in a wide near-neutral pH range (5.6-9.0), and the electrode could still achieve a 90.4% removal rate after ten recycle runs. Radical-quenching results showed that superoxide anions were the main species in the degradation of SMX. In addition, a possible degradation pathway of SMX was proposed. According to the result of toxicological simulations, the toxicity of the pollutant solution during the degradation process exhibited a decreasing trend. This study provides new insights for in-situ catalysis of electrodes with bimetallic active components to generate ROS for high-efficiency degradation of refractory organic pollutants.
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Affiliation(s)
- Yelong Zou
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Beijing University of Technology, Beijing, 100124, PR China.
| | - Haiqiang Qi
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Beijing University of Technology, Beijing, 100124, PR China.
| | - Zhirong Sun
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Beijing University of Technology, Beijing, 100124, PR China.
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9
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Jang HJ, Yang JH, Maeng JY, Joo MH, Kim YJ, Rhee CK, Sohn Y. Photoelectrochemical CO2 Reduction Products Over Sandwiched Hybrid Ga2O3:ZnO/Indium/ZnO Nanorods. Front Chem 2022; 10:814766. [PMID: 35223770 PMCID: PMC8863927 DOI: 10.3389/fchem.2022.814766] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Accepted: 01/07/2022] [Indexed: 12/17/2022] Open
Abstract
Recycled valuable energy production by the electrochemical CO2 reduction method has explosively researched using countless amounts of developed electrocatalysts. Herein, we have developed hybrid sandwiched Ga2O3:ZnO/indium/ZnO nanorods (GZO/In/ZnONR) and tested their photoelectrocatalytic CO2 reduction performances. Gas chromatography and nuclear magnetic spectroscopy were employed to examine gas and liquid CO2 reduction products, respectively. Major products were observed to be CO, H2, and formate whose Faradaic efficiencies were highly dependent on the relative amounts of overlayer GZO and In spacer, as well as applied potential and light irradiation. Overall, the present study provides a new strategy of controlling CO2 reduction products by developing a sandwiched hybrid catalyst system for energy and environment.
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Affiliation(s)
- Hye Ji Jang
- Department of Chemistry, Chungnam National University, Daejeon, South Korea
| | - Ju Hyun Yang
- Department of Chemistry, Chungnam National University, Daejeon, South Korea
- Department of Chemical Engineering and Applied Chemistry, Chungnam National University, Daejeon, South Korea
| | - Ju Young Maeng
- Department of Chemistry, Chungnam National University, Daejeon, South Korea
| | - Min Hee Joo
- Department of Chemistry, Chungnam National University, Daejeon, South Korea
- Department of Chemical Engineering and Applied Chemistry, Chungnam National University, Daejeon, South Korea
| | - Young Jun Kim
- Department of Chemistry, Chungnam National University, Daejeon, South Korea
| | - Choong Kyun Rhee
- Department of Chemistry, Chungnam National University, Daejeon, South Korea
| | - Youngku Sohn
- Department of Chemistry, Chungnam National University, Daejeon, South Korea
- Department of Chemical Engineering and Applied Chemistry, Chungnam National University, Daejeon, South Korea
- *Correspondence: Youngku Sohn,
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10
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Li G, Liu Z, Wang W, Liu D, Shen MQ, Jin JC, Singh A, Kumar A. A new Cu(II) metal–organic architecture driven by ether-bridged dicarboxylate: Photocatalytic properties and Hirshfeld surface analysis. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131627] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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11
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A novel conductive rGO/ZnO/PSF membrane with superior water flux for electrocatalytic degradation of organic pollutants. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2021.119901] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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12
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Song B, Wang Z, Li J, Luo M, Cao P, Zhang C. Sulfur-zinc modified kaolin/steel slag: A particle electrode that efficiently degrades norfloxacin in a neutral/alkaline environment. CHEMOSPHERE 2021; 284:131328. [PMID: 34216931 DOI: 10.1016/j.chemosphere.2021.131328] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 06/21/2021] [Accepted: 06/22/2021] [Indexed: 06/13/2023]
Abstract
In this work, sulfur and zinc were used to modify the steel slag/kaolin particle electrodes. Sulfur-zinc modified kaolin/steel slag particle electrodes (S-Zn-KSPEs) was successfully prepared. In a wide pH range (pH 3-10), S-Zn-KSPEs could efficiently degrade norfloxacin at low voltage (4 V) within 90 min. The removal rate of NOR by S-Zn-KSPEs was about 100% in acidic environment, more than 90% in neutral environment, and more than 80% in alkaline environment. And S-Zn-KSPEs could also efficiently degrade methylene blue, diuron, levofloxacin and other refractory pollutants under neutral conditions. S-Zn-KSPEs showed good stability and recyclability, and could maintain high catalytic activity after 8 cycles in a neutral or alkaline environment. The possible degradation mechanism and the degradation pathway of norfloxacin are proposed. In addition, S-Zn-KSPEs also showed a higher treatment effect in the treatment of actual surface water bodies. And S-Zn-KSPEs had a strong acid-base buffering capacity, which could avoid some pretreatment measures of wastewater in practical applications.
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Affiliation(s)
- Bo Song
- College of Water Conservancy and Architecture Engineering, Shihezi University, Shihezi, 832000, Xinjiang, PR China; College of Earth and Environmental Sciences, Key Lab of Environmental Pollution Predict & Control, Lanzhou University, Lanzhou, 730000, PR China
| | - Zhaoyang Wang
- College of Water Conservancy and Architecture Engineering, Shihezi University, Shihezi, 832000, Xinjiang, PR China; College of Earth and Environmental Sciences, Key Lab of Environmental Pollution Predict & Control, Lanzhou University, Lanzhou, 730000, PR China.
| | - Junfeng Li
- College of Water Conservancy and Architecture Engineering, Shihezi University, Shihezi, 832000, Xinjiang, PR China
| | - Mengqiao Luo
- College of Earth and Environmental Sciences, Key Lab of Environmental Pollution Predict & Control, Lanzhou University, Lanzhou, 730000, PR China
| | - Pengwei Cao
- College of Earth and Environmental Sciences, Key Lab of Environmental Pollution Predict & Control, Lanzhou University, Lanzhou, 730000, PR China
| | - Can Zhang
- College of Earth and Environmental Sciences, Key Lab of Environmental Pollution Predict & Control, Lanzhou University, Lanzhou, 730000, PR China
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Construction of a 2D Polymer by Rigid Dicarboxylate and Methylimidazol Derivatives: Structure and Photocatalytic Feature. J Inorg Organomet Polym Mater 2021. [DOI: 10.1007/s10904-021-02150-7] [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]
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14
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Wu Y, Kang W, Wang X, Tan X, Wang L, Xie B, Li B. Series of new coordination polymers based flexible tricarboxylate as photocatalysts for Rh B dye degradation. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2021.122233] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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15
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Ying XB, Tang CY, Guo W, Sheng DS, Wang MZ, Feng HJ. Quantifying the electron-donating and -accepting capacities of wastewater for evaluating and optimizing biological wastewater treatment processes. J Environ Sci (China) 2021; 102:235-243. [PMID: 33637248 DOI: 10.1016/j.jes.2020.09.026] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 08/22/2020] [Accepted: 09/13/2020] [Indexed: 06/12/2023]
Abstract
Biological processes have been widely used for the treatment of both domestic and industrial wastewaters. In such biological processes, pollutants are converted into pollution-free substances by microorganisms through oxidation-reduction reactions. Thus, how to quantify the internal oxidation-reduction properties wastewaters and seek out targeted countermeasures is essential to understand, operate, and optimize biological wastewater treatment systems. So far, no such approach is available yet. In this work, a novel concept of electron neutralization-based evaluation is proposed to describe the internal oxidation-reduction properties of wastewater. Pollutants in wastewater are defined as electron donor substances (EDSs) or electron acceptor substances (EASs), which could give or accept electrons, respectively. With such an electron neutralization concept, several parameters, i.e., electron residual concentration (R), economy-related index (E and Er), and economical evaluation index (Y and Yr), are defined. Then, these parameters are used to evaluate the performance and economic aspects of currently applied wastewater treatment processes and even optimize systems. Three case studies demonstrate that the proposed concept could be effectively used to reduce wastewater treatment costs, assess energy recovery, and evaluate process performance. Therefore, a new, simple, and reliable methodology is established to describe the oxidation-reduction properties of wastewater and assess the biological wastewater treatment processes.
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Affiliation(s)
- Xian-Bin Ying
- Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Chen-Yi Tang
- Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Wei Guo
- Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Dong-Shen Sheng
- Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Mei-Zhen Wang
- Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Hua-Jun Feng
- Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China.
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16
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Koutavarapu R, Reddy CV, Syed K, Reddy KR, Shetti NP, Aminabhavi TM, Shim J. Ultra-small zinc oxide nanosheets anchored onto sodium bismuth sulfide nanoribbons as solar-driven photocatalysts for removal of toxic pollutants and phtotoelectrocatalytic water oxidation. CHEMOSPHERE 2021; 267:128559. [PMID: 33070978 DOI: 10.1016/j.chemosphere.2020.128559] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Revised: 09/24/2020] [Accepted: 10/04/2020] [Indexed: 06/11/2023]
Abstract
Heterostructured nanohybrids were prepared from sodium bismuth sulfide (NaBiS2) and zinc oxide (ZnO) through hydrothermal process. The nanocomposite was used for tetracycline (TC) degradation as well as photoelectrochemical (PEC) water oxidation. Morphology and structural analyses were performed to confirm the dispersion of ultra-small ZnO nanosheets into the NaBiS2 nanoribbons. By tuning the band gap, it was possible to degrade tetracycline toxic pollutant within 90 min under the simulated solar light irradiation, while PEC suggested a lower charge-transfer resistance, high photocurrent response, and exceptionally good stability. The highest photocurrent density of 0.751 mAcm-2 vs. Ag/AgCl in 0.1 M Na2SO3 solution was observed under solar-light illumination. Detailed photocatalytic mechanisms for the degradation of TC and PEC water oxidation are discussed.
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Affiliation(s)
| | - Ch Venkata Reddy
- School of Mechanical Engineering, Yeungnam University, Gyeongsan, 712-749, Republic of Korea.
| | - Kamaluddin Syed
- Department of Mechanical Engineering, Vignan's Institute of Information Technology, Visakhapatnam, 530049, A.P., India
| | - Kakarla Raghava Reddy
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW, 2006, Australia.
| | - Nagaraj P Shetti
- Center for Electrochemical Science & Materials, Department of Chemistry, K.L.E. Institute of Technology, Hubballi, 580 030, Karnataka, India
| | - Tejraj M Aminabhavi
- Department of Pharmaceutics, SETs' College of Pharmacy, Dharwad, 580 007, Karnataka, India.
| | - Jaesool Shim
- School of Mechanical Engineering, Yeungnam University, Gyeongsan, 712-749, Republic of Korea.
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