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Li Z, Li D, Feng Z, Lv S, Zhang Q, Yu Y, Tian Y, Huang R, Chen H, Zhang K, Dai H. Enhanced photocatalytic ammonia oxidation over WO 3@TiO 2 heterostructures by constructing an interfacial electric field. CHEMOSPHERE 2024; 355:141811. [PMID: 38554859 DOI: 10.1016/j.chemosphere.2024.141811] [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: 11/22/2023] [Revised: 02/28/2024] [Accepted: 03/25/2024] [Indexed: 04/02/2024]
Abstract
WO3 nanorods and xWO3@TiO2 (WO3/TiO2 mass ratio (x) = 1-5) photocatalysts were synthesized using the hydrothermal and sol-gel methods, respectively. The photocatalytic activities of xWO3@TiO2 for NH3 oxidation first increased and then decreased with a rise in TiO2 content. Among them, the heterostructured 3WO3@TiO2 photocatalyst showed the highest NH3 conversion (58 %) under the simulated sunlight irradiation, which was about two times higher than those of WO3 and TiO2. Furthermore, the smallest amounts of by-products (i.e., NO and NO2) were produced over 3WO3@TiO2. The enhancement in photocatalytic performance (i.e., NH3 conversion and N2 selectivity) of 3WO3@TiO2 was mainly attributed to the formed interfacial electric field between WO3 and TiO2, which promoted efficient separation and transfer of photogenerated charge carriers. Based on the results of reactive species trapping and active radical detection, photocatalytic oxidation of NH3 over 3WO3@TiO2 was governed by the photogenerated holes and superoxide radicals. This work combines two strategies of morphological regulation and interfacial electric field construction to simultaneously improve light utilization and photogenerated charge separation efficiency, which promotes the development of full-spectrum photocatalysts for the removal of ammonia.
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Affiliation(s)
- Zhaonian Li
- College of Environmental Engineering, Henan University of Technology, Zhengzhou, Henan, 450001, China
| | - Daorong Li
- College of Environmental Engineering, Henan University of Technology, Zhengzhou, Henan, 450001, China
| | - Zhanzhao Feng
- College of Environmental Engineering, Henan University of Technology, Zhengzhou, Henan, 450001, China
| | - Shuqi Lv
- College of Environmental Engineering, Henan University of Technology, Zhengzhou, Henan, 450001, China
| | - Qingxuan Zhang
- College of Environmental Engineering, Henan University of Technology, Zhengzhou, Henan, 450001, China
| | - Yanru Yu
- College of Environmental Engineering, Henan University of Technology, Zhengzhou, Henan, 450001, China
| | - Ying Tian
- College of Environmental Engineering, Henan University of Technology, Zhengzhou, Henan, 450001, China
| | - Runfeng Huang
- College of Environmental Engineering, Henan University of Technology, Zhengzhou, Henan, 450001, China
| | - Hongxia Chen
- College of Environmental Engineering, Henan University of Technology, Zhengzhou, Henan, 450001, China
| | - Kunfeng Zhang
- College of Environmental Engineering, Henan University of Technology, Zhengzhou, Henan, 450001, China.
| | - Hongxing Dai
- Beijing Key Laboratory for Green Catalysis and Separation, Key Laboratory of Advanced Functional Materials, Ministry of Education, Department of Chemical Engineering and Technology, College of Materials Science and Engineering, Beijing University of Technology, Beijing, 100124, China; Key Laboratory of Beijing on Regional Air Pollution Control, College of Environmental Science and Engineering, Beijing University of Technology, Beijing, 100124, China.
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2
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Guan J, Li D, Feng J, Xu P, Li Z, Ge S, Chen H, Zhang K. Enhanced photocatalytic ammonia oxidation activity and nitrogen selectivity over Ag/AgCl/N-TiO 2 photocatalyst. J Environ Sci (China) 2024; 138:395-405. [PMID: 38135405 DOI: 10.1016/j.jes.2023.03.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 03/14/2023] [Accepted: 03/15/2023] [Indexed: 12/24/2023]
Abstract
The removal of ammonia (NH3) emitted from agricultural and industrial activities is of great significance to protect human health and ecological environment. Photocatalytic NH3 oxidation to N2 under mild conditions is a promising strategy. However, developing visible light photocatalysts for NH3 oxidation is still in its infancy. Here, we fabricate N-TiO2 and Ag/AgCl/N-TiO2 photocatalysts by sol-gel and photodeposition methods, respectively. The introduction of N not only endows TiO2 with visible light response (absorption edge at 460 nm) but also results in the formation of heterophase junction (anatase and rutile). Thus, N-TiO2 shows 2.0 and 1.8 times higher than those over anatase TiO2 and commercial TiO2 for NH3 oxidation under full spectrum irradiation. Meanwhile, surface modification of Ag can simultaneously enhance visible light absorption (generating localized surface plasmon resonance effect) and charge separation efficiency. Therefore, the photocatalytic activity of Ag/AgCl/N-TiO2 is further improved. Furthermore, the presence of N and Ag also enhances the selectivity of N2 product owing to the change of reaction pathway. This work simultaneously regulates photocatalytic conversion efficiency and product selectivity, providing some guidance for developing highly efficient photocatalysts for NH3 elimination.
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Affiliation(s)
- Jiaojiao Guan
- College of Environmental Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Daorong Li
- College of Environmental Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Jiahui Feng
- College of Environmental Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Peng Xu
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, National Center for Nanoscience and Technology, Beijing 100190, China
| | - Zhaonian Li
- College of Environmental Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Siqi Ge
- College of Environmental Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Hongxia Chen
- College of Environmental Engineering, Henan University of Technology, Zhengzhou 450001, China.
| | - Kunfeng Zhang
- College of Environmental Engineering, Henan University of Technology, Zhengzhou 450001, China; Department of Chemistry, Tsinghua University, Beijing 100084, China.
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Mugwili ME, Waanders FB, Masindi V, Fosso-Kankeu E. An update on sustainabilities and challenges on the removal of ammonia from aqueous solutions: A state-of-the-art review. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 347:119172. [PMID: 37793297 DOI: 10.1016/j.jenvman.2023.119172] [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: 06/18/2023] [Revised: 09/11/2023] [Accepted: 09/28/2023] [Indexed: 10/06/2023]
Abstract
An insightful attempt has been made in this review and the primary objective was to meticulously provide an update on the sustainabilities, advances and challenges pertaining the removal of ammonia from water and wastewater. Specifically, ammonia is a versatile compound that prevails in various spheres of the environment, and if not properly managed, this chemical species could pose severe ecological pressure and toxicity to different receiving environments and its biota. The notorious footprints of ammonia could be traced to anoxic conditions, an infestation of aquatic ecosystems, hyperactivity, convulsion, and methaemoglobin, popularly known as the "blue baby syndrome". In this review, latest updates regarding the sustainabilities, advancements and challenges for the removal of ammonia from aqueous solutions, i.e., river and waste waters, are briefly elucidated in light of future perspectives. Viable routes and ideal hotspots, i.e., wastewater and drinking water, for ammonia removal under the cost-effective options have been unpacked. Key mechanisms for the removal of ammonia were grossly bioremediation, oxidation, adsorption, filtration, precipitation, and ion exchange. Finally, this review denoted biological nutrient removal, struvite precipitation, and breakpoint chlorination as the most effective and promising technologies for the removal of ammonia from aquatic environments, although at the expense of energy and operational cost. Lastly, the future perspective, avenues of exploitation, and technical facets that deserve in-depth exploration are duly underscored.
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Affiliation(s)
- Muyahavho Enemiah Mugwili
- Water Pollution Monitoring and Remediation Initiatives Research Group, School of Chemical and Minerals Engineering, North-West University, Potchefstroom, 2531, South Africa; Magalies Water, Scientific Services, Research & Development Division, Erf 3475, Stoffberg Street, Brits, 0250, South Africa
| | - Frans Boudewijn Waanders
- Water Pollution Monitoring and Remediation Initiatives Research Group, School of Chemical and Minerals Engineering, North-West University, Potchefstroom, 2531, South Africa
| | - Vhahangwele Masindi
- Magalies Water, Scientific Services, Research & Development Division, Erf 3475, Stoffberg Street, Brits, 0250, South Africa; Department of Environmental Sciences, College of Agriculture and Environmental Sciences, University of South Africa (UNISA), P. O. Box 392, Florida, 1710, South Africa.
| | - Elvis Fosso-Kankeu
- Water Pollution Monitoring and Remediation Initiatives Research Group, School of Chemical and Minerals Engineering, North-West University, Potchefstroom, 2531, South Africa; Institute for Nanotechnology and Water Sustainability (iNanoWS), College of Science Engineering and Technology (CSET), University of South Africa, Florida Science Campus, South Africa; Department of Mining Engineering, College of Science Engineering and Technology, University of South Africa, Florida Science Campus, South Africa
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He W, Lu J, Zhang N, Zhou Y, Ding D, Feng Y, Rong S. Surface acidic sites strengthened core-shell HC@MnO 2 for enhanced gaseous ammonia adsorption. CHEMOSPHERE 2023; 338:139507. [PMID: 37453518 DOI: 10.1016/j.chemosphere.2023.139507] [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: 04/27/2023] [Revised: 07/03/2023] [Accepted: 07/13/2023] [Indexed: 07/18/2023]
Abstract
As a common gaseous pollutant in atmospheric environment, ammonia (NH3) not only contributes to the formation of haze, but also disturb the nitrogen balance in ecosystem through atmospheric nitrogen deposition. Therefore, the control of NH3 emission has important environmental significance. Adsorption is the most commonly used technology for NH3 purification in practice, and efficient adsorbents are the key to adsorption method. Herein, a core-shell structured HC@MnO2 adsorbent was constructed by in-situ growth of layered δ-MnO2 on hydrochar (HC) surface, and its surface acidic sites were further strengthened. The enhancement of surface acidic sites significantly improved the adsorption performance of HC@MnO2 for NH3, reaching 34.49 mg NH3/g, which was superior to commercial carbon-based materials (whose adsorption capacity was 8.47 times that of Coal-based activated carbon, 14.25 times that of Coconut shell activated carbon, and 12.77 times that of Bamboo charcoal). Moreover, the operating parameters and adsorption kinetics were detailly investigated. The adsorption of HC@MnO2 on NH3 was in accordance with pseudo-second-order adsorption kinetics model. Large surface area of core-shell structure and abundant surface acidic sites of δ-MnO2 are the decisive reasons for the excellent adsorption performance of HC@MnO2. Importantly, the enhancement of surface stronger Brønsted acidic sites is the key to improve NH3 adsorption performance of HC@MnO2. Finally, the thermal regeneration and recycling performance of HC@MnO2-H were also investigated. This study provides a suggestive for further research on low-cost composite materials with excellent NH3 adsorption performance.
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Affiliation(s)
- Weijiang He
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, PR China; Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, Ministry of Agriculture and Rural Affairs, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, PR China
| | - Jingling Lu
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, PR China
| | - Nan Zhang
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, PR China
| | - Yu Zhou
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, PR China
| | - Danni Ding
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, PR China
| | - Yanfang Feng
- Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, Ministry of Agriculture and Rural Affairs, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, PR China.
| | - Shaopeng Rong
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, PR China.
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Karim A, Raji Z, Karam A, Khalloufi S. Valorization of Fibrous Plant-Based Food Waste as Biosorbents for Remediation of Heavy Metals from Wastewater-A Review. Molecules 2023; 28:molecules28104205. [PMID: 37241944 DOI: 10.3390/molecules28104205] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 05/10/2023] [Accepted: 05/16/2023] [Indexed: 05/28/2023] Open
Abstract
Mobilization of heavy metals in the environment has been a matter of concern for several decades due to their toxicity for humans, environments, and other living organisms. In recent years, use of inexpensive and abundantly available biosorbents generated from fibrous plant-based food-waste materials to remove heavy metals has garnered considerable research attention. The aim of this review is to investigate the applicability of using fibrous plant-based food waste, which comprises different components such as pectin, hemicellulose, cellulose, and lignin, to remove heavy metals from wastewater. This contribution confirms that plant-fiber-based food waste has the potential to bind heavy metals from wastewater and aqueous solutions. The binding capacities of these biosorbents vary depending on the source, chemical structure, type of metal, modification technology applied, and process conditions used to improve functionalities. This review concludes with a discussion of arguments and prospects, as well as future research directions, to support valorization of fibrous plant-based food waste as an efficient and promising strategy for water purification.
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Affiliation(s)
- Ahasanul Karim
- Department of Soils and Agri-Food Engineering, Université Laval, Quebec, QC G1V 0A6, Canada
- Institute of Nutrition and Functional Foods (INAF), Université Laval, Quebec, QC G1V 0A6, Canada
| | - Zarifeh Raji
- Department of Soils and Agri-Food Engineering, Université Laval, Quebec, QC G1V 0A6, Canada
- Institute of Nutrition and Functional Foods (INAF), Université Laval, Quebec, QC G1V 0A6, Canada
| | - Antoine Karam
- Department of Soils and Agri-Food Engineering, Université Laval, Quebec, QC G1V 0A6, Canada
| | - Seddik Khalloufi
- Department of Soils and Agri-Food Engineering, Université Laval, Quebec, QC G1V 0A6, Canada
- Institute of Nutrition and Functional Foods (INAF), Université Laval, Quebec, QC G1V 0A6, Canada
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Liu X, Wang J. Selective oxidation of ammonia to dinitrogen gas by facile Co 2+/PMS/chloridion process through reactive chlorine radicals. CHEMOSPHERE 2023; 313:137648. [PMID: 36572361 DOI: 10.1016/j.chemosphere.2022.137648] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 11/23/2022] [Accepted: 12/23/2022] [Indexed: 06/17/2023]
Abstract
The selective oxidation of ammonia to dinitrogen gas in some special wastewater is of paramount significance, but still a challenge. In this study, chlorine radical (Cl•)-mediated oxidation process was developed to realize the selective oxidation of NH4+-N to N2, in which Cl• was generated in Co2+/peroxymonosulfate (PMS)/chloridion (Cl-) system. The effect of various operational parameters on the efficiency and selectivity of ammonia oxidation to N2 was investigated, such as PMS concentration, Co2+ concentration, Cl- concentration and pH value. The experiment results showed that Cl•-mediated NH4+-N oxidation reaction exhibited high NH4+-N removal efficiency and considerable selectivity to N2 in the range of pH from 2.0 to 6.5. The removal efficiency of NH4+-N was 90.39%, and the selectivity of NH4+-N to N2 achieved up to 97.16%. The possible mechanism for high efficient and selective oxidation of NH4+-N to N2 was tentatively proposed. The process developed in this study could provide a novel technology for the treatment and selective oxidation of ammonium in some special types of ammonium-containing wastewater.
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Affiliation(s)
- Xinyu Liu
- Laboratory of Environmental Technology, INET, Tsinghua University, Beijing, 100084, PR China
| | - Jianlong Wang
- Laboratory of Environmental Technology, INET, Tsinghua University, Beijing, 100084, PR China; Beijing Key Laboratory of Radioactive Wastes Treatment, Tsinghua University, Beijing, 100084, PR China.
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7
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Innovative photoelectrocatalytic water remediation system for ammonia abatement. Catal Today 2023. [DOI: 10.1016/j.cattod.2023.01.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Wu L, Tang D, Xue J, Liu S, Wang J, Ji H, Chen C, Zhang Y, Zhao J. Competitive Non‐Radical Nucleophilic Attack Pathways for NH
3
Oxidation and H
2
O Oxidation on Hematite Photoanodes. Angew Chem Int Ed Engl 2022; 61:e202214580. [DOI: 10.1002/anie.202214580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Indexed: 11/18/2022]
Affiliation(s)
- Lei Wu
- Key Laboratory of Photochemistry CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Daojian Tang
- Key Laboratory of Photochemistry CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Jing Xue
- Key Laboratory of Photochemistry CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Siqin Liu
- Key Laboratory of Photochemistry CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Jiaming Wang
- Key Laboratory of Photochemistry CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Hongwei Ji
- Key Laboratory of Photochemistry CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Chuncheng Chen
- Key Laboratory of Photochemistry CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Yuchao Zhang
- Key Laboratory of Photochemistry CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Jincai Zhao
- Key Laboratory of Photochemistry CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
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Kan L, Chang C, Wang Q, Wang X. Glycol assisted splitting BiOIO3 into plasmonic bismuth coupled with BiOI co-modified Bi2WO6 (BiOI/Bi/Bi2WO6) to form indirect Z-scheme heterojunction for efficient photocatalytic degradation of BPA. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121537] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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10
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Chen Y, Zhang G, Ji Q, Lan H, Liu H, Qu J. Visualization of Electrochemically Accessible Sites in Flow-through Mode for Maximizing Available Active Area toward Superior Electrocatalytic Ammonia Oxidation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:9722-9731. [PMID: 35737582 DOI: 10.1021/acs.est.2c01707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Active chlorine species-mediated electrocatalytic oxidation is a promising strategy for ammonia removal in decentralized wastewater treatment. Flow-through electrodes (FTEs) provide an ideal platform for this strategy because of enhanced mass transport and sufficient electrochemically accessible sites. However, limited insight into spatial distribution of electrochemically accessible sites within FTEs inhibits the improvement of reactor efficiency and the reduction of FTE costs. Herein, a microfluidic-based electrochemical system is developed for the operando observation of microspatial reactions within pore channels, which reveals that reactions occur only in the surface layer of the electrode thickness. To further quantify the spatial distribution, finite element simulations demonstrate that over 75.0% of the current is accumulated in the 20.0% thickness of the electrode surface. Based on these findings, a gradient-coated method for the active layer was proposed and applied to a Ti/RuO2 porous electrode with an optimized pore diameter of ∼25 μm, whose electrochemically accessible surface area was 381.7 times that of the planar electrode while alleviating bubble entrapment. The optimized reactor enables complete ammonia removal with an energy consumption of 60.4 kWh kg-1 N, which was 24.2% and 39.9% less than those with pore diameters of ∼3 μm and ∼90 μm, respectively.
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Affiliation(s)
- Yu Chen
- Center for Water and Ecology, State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Gong Zhang
- Center for Water and Ecology, State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Qinghua Ji
- Center for Water and Ecology, State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Huachun Lan
- Center for Water and Ecology, State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Huijuan Liu
- Center for Water and Ecology, State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Jiuhui Qu
- Center for Water and Ecology, State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
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Bathla A, Vikrant K, Kukkar D, Kim KH. Photocatalytic degradation of gaseous benzene using metal oxide nanocomposites. Adv Colloid Interface Sci 2022; 305:102696. [PMID: 35640317 DOI: 10.1016/j.cis.2022.102696] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 04/20/2022] [Accepted: 05/09/2022] [Indexed: 01/12/2023]
Abstract
Rapid industrial growth has been accompanied by the pollution of hazardous volatile organic pollutants (VOCs) in air. Among various options available for the treatment of VOCs, the use of metal oxide composites as photocatalysts has been adopted preferably due to their potential to induce the synergistic interactions between the metal nanoparticles (NPs) and metal oxides (especially titanium dioxide (TiO2)). In this context, an in-depth review is offered to describe the fundamental mechanism of metal oxide-based photocatalysis for the oxidation of gaseous benzene as a model VOC. The discussion has been extended further to evaluate their performances in terms of key performance metrics (e.g., quantum yield (QY), space-time yield (STY), and figure of merit (FOM)). The TiO2-based metallic bi-component photocatalysts (e.g., Sr2CeO4/TiO2) generally exhibited better photodegradation efficiency with enhanced light absorption capability than monometallic-TiO2 (e.g., Pd-TiO2) composites or other modified photocatalysts (e.g., metal-organic framework (MOF)-based composites). Finally, we address the current challenges and future perspectives in this highly challenging research field.
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Affiliation(s)
- Aadil Bathla
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul 04763, Republic of Korea
| | - Kumar Vikrant
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul 04763, Republic of Korea
| | - Deepak Kukkar
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul 04763, Republic of Korea; University Centre for Research and Development, Chandigarh University, Gharuan, Mohali -140413, Punjab, India; Department of Biotechnology, Chandigarh University, Gharuan, Mohali - 140413, Punjab, India
| | - Ki-Hyun Kim
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul 04763, Republic of Korea.
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12
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Drmosh Q. Variation of sputtered WO2.72 film thickness in Ag (NPs)/WO2.72/Au (NPs) system for optimizing sensing behaviors to NH3. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2022.139355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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13
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Irshad M, Ain QT, Zaman M, Aslam MZ, Kousar N, Asim M, Rafique M, Siraj K, Tabish AN, Usman M, Hassan Farooq MU, Assiri MA, Imran M. Photocatalysis and perovskite oxide-based materials: a remedy for a clean and sustainable future. RSC Adv 2022; 12:7009-7039. [PMID: 35424711 PMCID: PMC8982362 DOI: 10.1039/d1ra08185c] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Accepted: 02/21/2022] [Indexed: 01/08/2023] Open
Abstract
The massive use of non-renewable energy resources by humankind to fulfill their energy demands is causing severe environmental issues. Photocatalysis is considered one of the potential solutions for a clean and sustainable future because of its cleanliness, inexhaustibility, efficiency, and cost-effectiveness. Significant efforts have been made to design highly proficient photocatalyst materials for various applications such as water pollutant degradation, water splitting, CO2 reduction, and nitrogen fixation. Perovskite photocatalyst materials are gained special attention due to their exceptional properties because of their flexibility in chemical composition, structure, bandgap, oxidation states, and valence states. The current review is focused on perovskite materials and their applications in photocatalysis. Special attention has been given to the structural, stoichiometric, and compositional flexibility of perovskite photocatalyst materials. The photocatalytic activity of perovskite materials in different photocatalysis applications is also discussed. Various mechanisms involved in photocatalysis application from wastewater treatment to hydrogen production are also provided. The key objective of this review is to encapsulate the role of perovskite materials in photocatalysis along with their fundamental properties to provide valuable insight for addressing future environmental challenges.
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Affiliation(s)
- Muneeb Irshad
- Department of Physics, University of Engineering and Technology Lahore 54890 Pakistan
| | - Quar Tul Ain
- Department of Physics, University of Engineering and Technology Lahore 54890 Pakistan
| | - Muhammad Zaman
- Department of Physics, University of Engineering and Technology Lahore 54890 Pakistan
| | | | - Naila Kousar
- Department of Physics, University of Engineering and Technology Lahore 54890 Pakistan
| | - Muhammad Asim
- Department of Physics, University of Engineering and Technology Lahore 54890 Pakistan
| | | | - Khurram Siraj
- Department of Physics, University of Engineering and Technology Lahore 54890 Pakistan
| | - Asif Nadeem Tabish
- Department of Chemical Engineering, University of Engineering and Technology, New Campus Lahore Pakistan
| | - Muhammad Usman
- Department of Mechanical Engineering, University of Engineering and Technology Lahore 54890 Pakistan
| | - Masood Ul Hassan Farooq
- Department of Basic Sciences, University of Engineering and Technology, New Campus Lahore Pakistan
| | - Mohammed Ali Assiri
- Department of Chemistry, Faculty of Science, Research Center for Advanced Materials Science (RCAMS), King Khalid University P. O. Box 9004 Abha 61413 Saudia Arabia
| | - Muhammad Imran
- Department of Chemistry, Faculty of Science, Research Center for Advanced Materials Science (RCAMS), King Khalid University P. O. Box 9004 Abha 61413 Saudia Arabia
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Geng WY, Guo SF, Zhang H, Luo YH, Lu XX, Chen FY, Wang ZX, Zhang DE. Assembly of anthracene-based donor-acceptor conjugated organic polymers for efficient photocatalytic aqueous Cr(VI) reduction and organic pollutions degradation under visible light. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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15
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Metal-organic frameworks for photocatalytic detoxification of chromium and uranium in water. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214148] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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16
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Anastopoulos I, Ighalo JO, Adaobi Igwegbe C, Giannakoudakis DA, Triantafyllidis KS, Pashalidis I, Kalderis D. Sunflower-biomass derived adsorbents for toxic/heavy metals removal from (waste) water. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117540] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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17
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Yan Z, Dai Z, Zheng W, Lei Z, Qiu J, Kuang W, Huang W, Feng C. Facile ammonium oxidation to nitrogen gas in acid wastewater by in situ photogenerated chlorine radicals. WATER RESEARCH 2021; 205:117678. [PMID: 34601361 DOI: 10.1016/j.watres.2021.117678] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Revised: 09/14/2021] [Accepted: 09/16/2021] [Indexed: 06/13/2023]
Abstract
The treatment of low-concentration ammonium (e.g., <50 mg L-1) in highly acidic wastewaters through traditional biological nitrification, physical separation, or chemical stripping remains a huge challenge. Herein, we report that photocatalytic ammonium oxidation using bismuth oxychloride (BiOCl) can successfully occur in Cl--laden solutions within a pH range of 1.0-6.0. All reactions follow pseudo-zero-order kinetics (with rate constants of 0.27-0.32 mg L-1 min-1 at pH 2.0-6.0 and 0.14 mg L-1 min-1 at pH 1.0), indicating the saturation of reactive species by the reactants. The interlayer is self-oxidized by the valence band holes (VB h+), resulting in the formation of Cl• and subsequently HClO, which is excited upon UV irradiation to provoke consecutive photoreactions for chlorine radical generation. Compared to the free chlorine, HO•, Cl•, and Cl2•-, the ClO• produced using the UV/BiOCl system plays a predominant role in oxidizing ammonium under acidic conditions. BiOCl exhibits good stability because of the compensation of Cl- from solution and maintains high activity under different conditions (i.e., different cations and co-existing anions, temperatures, and initial substrate concentrations). The successful removal of ammonium from real wastewater using the UV/BiOCl system suggests that this is a promising method for treating diluted ammonium under highly acidic conditions.
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Affiliation(s)
- Zhang Yan
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China
| | - Zongren Dai
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China
| | - Wenxiao Zheng
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China
| | - Zhenchao Lei
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China
| | - Jinwen Qiu
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China
| | - Wenjie Kuang
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China
| | - Weijun Huang
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China
| | - Chunhua Feng
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China.
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18
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Liu K, Chen D, Zhang S, Su P, Huang Y. Enhancing the Charge Carrier Transfer of ZnFe 2O 4/C/TiO 2 Hollow Nanosphere Photocatalyst via Contact Interface Engineering. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c01728] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Kuiliang Liu
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou Key Laboratory for Clean Energy and Materials, Guangzhou University, Guangzhou 510006, China
| | - Daoming Chen
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
| | - Siqi Zhang
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou Key Laboratory for Clean Energy and Materials, Guangzhou University, Guangzhou 510006, China
| | - Peiyang Su
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou Key Laboratory for Clean Energy and Materials, Guangzhou University, Guangzhou 510006, China
| | - Yongchao Huang
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou Key Laboratory for Clean Energy and Materials, Guangzhou University, Guangzhou 510006, China
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19
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Giannakoudakis DA, Qayyum A, Nair V, Khan A, Pradhan SR, Prekodravac J, Rekos K, LaGrow AP, Bondarchuk O, Łomot D, Triantafyllidis KS, Colmenares JC. Ultrasound-assisted decoration of CuOx nanoclusters on TiO2 nanoparticles for additives free photocatalytic hydrogen production and biomass valorization by selective oxidation. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111664] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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20
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He X, Kai T, Ding P. Heterojunction photocatalysts for degradation of the tetracycline antibiotic: a review. ENVIRONMENTAL CHEMISTRY LETTERS 2021; 19:4563-4601. [PMID: 34483792 PMCID: PMC8403697 DOI: 10.1007/s10311-021-01295-8] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 07/28/2021] [Indexed: 05/20/2023]
Abstract
Antibiotic pollution is a major health issue inducing antibiotic resistance and the inefficiency of actual drugs, thus calling for improved methods to clean water and wastewater. Here we review the recent development of heterojunction photocatalysis and application in degrading tetracycline. We discuss mechanisms for separating photogenerated electron-hole pairs in different heterojunction systems such as traditional, p-n, direct Z-scheme, step-scheme, Schottky, and surface heterojunction. Degradation pathways of tetracycline during photocatalysis are presented. We compare the efficiency of tetracycline removal by various heterojunctions using quantum efficiency, space time yield, and figures of merit. Implications for the treatment of antibiotic-contaminated wastewater are discussed.
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Affiliation(s)
- Xinghou He
- Central South University Xiangya School of Public Health, Changsha, 410078 Hunan China
- Hunan Provincial Key Laboratory of Clinical Epidemiology, Changsha, 410078 Hunan China
| | - Tianhan Kai
- Central South University Xiangya School of Public Health, Changsha, 410078 Hunan China
| | - Ping Ding
- Central South University Xiangya School of Public Health, Changsha, 410078 Hunan China
- Hunan Provincial Key Laboratory of Clinical Epidemiology, Changsha, 410078 Hunan China
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21
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Baziar M, Zakeri HR, Ghaleh askari S, Nejad ZD, Shams M, Anastopoulos I, Giannakoudakis DA, Lima EC. Metal-organic and Zeolitic imidazole frameworks as cationic dye adsorbents: physicochemical optimizations by parametric modeling and kinetic studies. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115832] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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22
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Vikrant K, Kim KH. Metal–organic framework micromotors: perspectives for environmental applications. Catal Sci Technol 2021. [DOI: 10.1039/d1cy01124c] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Metal–organic framework micromotors possessing a self-propulsion system have been proposed as a new generation of advanced materials for various environmental applications.
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Affiliation(s)
- Kumar Vikrant
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul 04763, Republic of Korea
| | - Ki-Hyun Kim
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul 04763, Republic of Korea
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23
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Xiao L, Chen P, Yang W, Zhao X, Dong F. Photocatalytic reaction mechanisms at the gas–solid interface for environmental and energy applications. Catal Sci Technol 2021. [DOI: 10.1039/d1cy01776d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Five gas–solid photocatalytic reactions including the oxidation of NOx, VOCs and NH3, and reduction of CO2 and N2 are summarized. Besides, basic properties of gas molecules, their adsorption and activation, and various reaction pathways are analyzed.
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Affiliation(s)
- Lei Xiao
- Research Center for Environmental and Energy Catalysis, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313000, China
| | - Peng Chen
- The Center of New Energy Materials and Technology, School of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, China
| | - Weiping Yang
- Research Center for Environmental and Energy Catalysis, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313000, China
| | - Xiaoli Zhao
- Research Center for Environmental and Energy Catalysis, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Fan Dong
- Research Center for Environmental and Energy Catalysis, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313000, China
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