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Zhong T, Huang W, Yao Z, Long X, Qu W, Zhao H, Tian S, Shu D, He C. Engineering of Graphitic Carbon Nitride (g-C 3N 4) Based Photocatalysts for Atmospheric Protection: Modification Strategies, Recent Progress, and Application Challenges. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2404696. [PMID: 39155427 DOI: 10.1002/smll.202404696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2024] [Revised: 07/13/2024] [Indexed: 08/20/2024]
Abstract
Graphitic carbon nitride (g-C3N4) is a prominent photocatalyst that has attracted substantial interest in the field of photocatalytic environmental remediation due to the low cost of fabrication, robust chemical structure, adaptable and tunable energy bandgaps, superior photoelectrochemical properties, cost-effective feedstocks, and distinctive framework. Nonetheless, the practical application of bulk g-C3N4 in the photocatalysis field is limited by the fast recombination of photogenerated e--h+ pairs, insufficient surface-active sites, and restricted redox capacity. Consequently, a great deal of research has been devoted to solving these scientific challenges for large-scale applications. This review concisely presents the latest advancements in g-C3N4-based photocatalyst modification strategies, and offers a comprehensive analysis of the benefits and preparation techniques for each strategy. It aims to articulate the complex relationship between theory, microstructure, and activities of g-C3N4-based photocatalysts for atmospheric protection. Finally, both the challenges and opportunities for the development of g-C3N4-based photocatalysts are highlighted. It is highly believed that this special review will provide new insight into the synthesis, modification, and broadening of g-C3N4-based photocatalysts for atmospheric protection.
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Affiliation(s)
- Tao Zhong
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Wenbin Huang
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Zhangnan Yao
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Xianhu Long
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Wei Qu
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Huinan Zhao
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Shuanghong Tian
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Dong Shu
- Key Lab of Technology on Electrochemical Energy Storage and Power Generation in Guangdong Universities, School of Chemistry, South China Normal University, Guangzhou, 510006, China
| | - Chun He
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, China
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Reddy CV, Kakarla RR, Cheolho B, Shim J, Aminabhavi TM. Heterostructured 2D/2D ZnIn 2S 4/g-C 3N 4 nanohybrids for photocatalytic degradation of antibiotic sulfamethoxazole and photoelectrochemical properties. ENVIRONMENTAL RESEARCH 2023; 225:115585. [PMID: 36854374 DOI: 10.1016/j.envres.2023.115585] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 02/12/2023] [Accepted: 02/25/2023] [Indexed: 06/18/2023]
Abstract
In recent years, antibiotic drugs have been extensively used owing to increased industrial growth, and this has created issues related to drinking water and a green environment. Different techniques have been used to resolve these issues, among which heterogeneous photocatalysis has been widely explored for the elimination of toxic compounds from wastewater resources. In this study, ZnIn2S4, g-C3N4, and ZnIn2S4/g-C3N4 hybrid heterostructured composites are synthesized via hydrothermal method and used these (i) for the removal of antibiotic sulfamethoxazole pollutant and (ii) photoelectrochemical water oxidation. The nanomaterials were characterized using X-ray diffraction, Scanning electron microscopy, transmission electron microscopy, and UV-vis spectroscopy. The developed hybrid heterostructured composites were able to degrade sulfamethoxazole pollutants as well as offer improved photoelectrochemical properties compared to pristine samples. The catalytic performance of the materials developed under visible light irradiation was greatly improved for the degradation of the antibiotic drug up to 89.4% in 2 h. Moreover, the hybrid heterostructured photoelectrode showed a better photocurrent density (8.68 mA/cm2) and exhibited ∼19.2 and 29.9 times greater photocurrent density than the pristine photoelectrodes. Such a considerably increased catalytic activity was attributed to the active separation of charge carriers and transmission. The study offers an innovative approach to develop effective catalysts, and for the degradation of sulfamethoxazole as well as the PEC properties for hydrogen production.
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Affiliation(s)
- Ch Venkata Reddy
- School of Mechanical Engineering, Yeungnam University, 280 Daehak-ro, Gyoungsan-si, Gyeongsangbuk-do, 38541, Republic of Korea
| | - Raghava Reddy Kakarla
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW 2006, Australia.
| | - Bai Cheolho
- School of Mechanical Engineering, Yeungnam University, 280 Daehak-ro, Gyoungsan-si, Gyeongsangbuk-do, 38541, Republic of Korea.
| | - Jaesool Shim
- School of Mechanical Engineering, Yeungnam University, 280 Daehak-ro, Gyoungsan-si, Gyeongsangbuk-do, 38541, Republic of Korea.
| | - Tejraj M Aminabhavi
- Center for Energy and Environment, School of Advanced Sciences, KLE Technological University, Hubballi, 580 031, Karnataka, India; University Center for Research & Development (UCRO), Chandigarh University, Gharuan, Mohali, 140413, Punjab, 140 413, India.
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Trung LG, Nguyen MK, Hang Nguyen TD, Tran VA, Gwag JS, Tran NT. Highly efficient degradation of reactive black KN-B dye by ultraviolet light responsive ZIF-8 photocatalysts with different morphologies. RSC Adv 2023; 13:5908-5924. [PMID: 36816065 PMCID: PMC9936357 DOI: 10.1039/d2ra08312d] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Accepted: 02/10/2023] [Indexed: 02/19/2023] Open
Abstract
Zeolitic imidazolate framework ZIF-8, a type of metal-organic framework, has diverse applications in multiple catalytic fields due to its outstanding properties. Herein, ZIF-8 photocatalysts with three different morphologies (dodecahedral, pitaya-like, and leaf-like) are successfully synthesized under ambient conditions from zinc salts by altering the volume ratio of methanol and water used as a solvent. The as-synthesized ZIFs have high crystallinity with distinct BET surface areas. The experiments indicate that the ZIFs have high photocatalytic efficiency, in which the leaf-like structure (ZIF-8-F3) is the most efficient in the degradation of reactive black KN-B dye (RB5) under 365 nm UV irradiation. This is due to the efficient inhibition of electron-hole recombination or the higher migration of charge carriers in ZIF-8-F3, thus producing more reactive oxygen species, resulting in greater photocatalytic efficiency. At pH = 11, more than 95% of RB5 is degraded within 2 hours when using 1.0 g L-1 of ZIF-8-F3. Besides, the photocatalytic and kinetic performances of ZIF-8-F3 are also investigated by optimizing the pH, initial RB5 concentration, and dosage of the used catalyst. These ZIF-8-F3 plates have been shown to be a promising material with high photostability and effective reusability, beneficial to various potential applications in environmental remediation issues.
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Affiliation(s)
- Le Gia Trung
- Department of Physics, Yeungnam University Gyeongsan Gyeongbuk 38541 Republic of Korea
| | - Minh Kim Nguyen
- College of Pharmacy, Chungnam National UniversityYuseongDaejeon 34134Republic of Korea
| | - Thi Dieu Hang Nguyen
- The University of Da Nang, University of Science and Technology (DUT)54 Nguyen Luong BangDa Nang550000Vietnam
| | - Vy Anh Tran
- Institute of Applied Technology and Sustainable Development, Nguyen Tat Thanh UniversityHo Chi Minh City 700000Vietnam,Faculty of Environmental and Food Engineering, Nguyen Tat Thanh UniversityHo Chi Minh City 700000Vietnam
| | - Jin Seog Gwag
- Department of Physics, Yeungnam University Gyeongsan Gyeongbuk 38541 Republic of Korea
| | - Nguyen Tien Tran
- Center for Advanced Chemistry, Institute of Research and Development, Duy Tan University 03 Quang Trung Da Nang 550000 Vietnam .,Faculty of Natural Sciences, Duy Tan University 03 Quang Trung Da Nang 550000 Vietnam
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Hassan IU, Naikoo GA, Salim H, Awan T, Tabook MA, Pedram MZ, Mustaqeem M, Sohani A, Hoseinzadeh S, Saleh TA. Advances in Photochemical Splitting of Seawater over Semiconductor Nano-Catalysts for Hydrogen Production: A Critical Review. J IND ENG CHEM 2023. [DOI: 10.1016/j.jiec.2023.01.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Hunge Y, Yadav A, Kang SW, Jun Lim S, Kim H. Visible light activated MoS2/ZnO composites for photocatalytic degradation of ciprofloxacin antibiotic and hydrogen production. J Photochem Photobiol A Chem 2023. [DOI: 10.1016/j.jphotochem.2022.114250] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Du H, Wang Q, Chen G, wang J. Photo/electro-catalytic degradation of micro- and nano-plastics by nanomaterials and corresponding degradation mechanism. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2022.116815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Gan C, Sheng M, Hu Z, Li Y, Peng Y, Xiang Z, Sun B, Jiang H. Novel and efficient strategy for chlorophenols and CO2 transformation over carbon nitride nanotubes: Effect of the hydroxyl grafting and surface electron polarization. J Catal 2022. [DOI: 10.1016/j.jcat.2022.07.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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Kobkeatthawin T, Chaveanghong S, Trakulmututa J, Amornsakchai T, Kajitvichyanukul P, Smith SM. Photocatalytic Activity of TiO 2/g-C 3N 4 Nanocomposites for Removal of Monochlorophenols from Water. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:2852. [PMID: 36014720 PMCID: PMC9414261 DOI: 10.3390/nano12162852] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 08/09/2022] [Accepted: 08/10/2022] [Indexed: 06/15/2023]
Abstract
This research employed g-C3N4 nanosheets in the hydrothermal synthesis of TiO2/g-C3N4 hybrid photocatalysts. The TiO2/g-C3N4 heterojunctions, well-dispersed TiO2 nanoparticles on the g-C3N4 nanosheets, are effective photocatalysts for the degradation of monochlorophenols (MCPs: 2-CP, 3-CP, and 4-CP) which are prominent water contaminants. The removal efficiency of 2-CP and 4-CP reached 87% and 64%, respectively, after treatment of 25 ppm CP solutions with the photocatalyst (40TiO2/g-C3N4, 1 g/L) and irradiation with UV-Vis light. Treatment of CP solutions with g-C3N4 nanosheets or TiO2 alone in conjunction with irradiation gave removal efficiencies lower than 50%, which suggests the two act synergically to enhance the photocatalytic activity of the 40TiO2/g-C3N4 nanocomposite. Superoxide and hydroxyl radicals are key active species produced during CP photodegradation. In addition, the observed nitrogen and Ti3+ defects and oxygen vacancies in the TiO2/g-C3N4 nanocomposites may improve the light-harvesting ability of the composite and assist preventing rapid electron-hole recombination on the surface, enhancing the photocatalytic performance. In addition, interfacial interactions between the MCPs (low polarity) and thermally exfoliated carbon nitride in the TiO2/g-C3N4 nanocomposites may also enhance MCP degradation.
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Affiliation(s)
- Thawanrat Kobkeatthawin
- Center of Sustainable Energy and Green Materials and Department of Chemistry, Faculty of Science, Mahidol University, 999 Phuttamonthon Sai 4 Road, Salaya, Nakhon Pathom 73170, Thailand
| | - Suwilai Chaveanghong
- Center of Sustainable Energy and Green Materials and Department of Chemistry, Faculty of Science, Mahidol University, 999 Phuttamonthon Sai 4 Road, Salaya, Nakhon Pathom 73170, Thailand
| | - Jirawat Trakulmututa
- Center of Sustainable Energy and Green Materials and Department of Chemistry, Faculty of Science, Mahidol University, 999 Phuttamonthon Sai 4 Road, Salaya, Nakhon Pathom 73170, Thailand
| | - Taweechai Amornsakchai
- Center of Sustainable Energy and Green Materials and Department of Chemistry, Faculty of Science, Mahidol University, 999 Phuttamonthon Sai 4 Road, Salaya, Nakhon Pathom 73170, Thailand
- Center of Excellence for Innovation in Chemistry, 272 Rama VI Road, Rajthevi, Bangkok 10400, Thailand
| | - Puangrat Kajitvichyanukul
- Department of Environmental Engineering, Faculty of Engineering, Chiang Mai University, 239 Huay Kaew Road, Muang District, Chiang Mai 50200, Thailand
- Sustainable Engineering Research Center for Pollution and Environmental Management, Faculty of Engineering, Chiang Mai University, 239 Huay Kaew Road, Muang District, Chiang Mai 50200, Thailand
| | - Siwaporn Meejoo Smith
- Center of Sustainable Energy and Green Materials and Department of Chemistry, Faculty of Science, Mahidol University, 999 Phuttamonthon Sai 4 Road, Salaya, Nakhon Pathom 73170, Thailand
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Du C, Nie S, Feng W, Zhang J, Qi M, Liang Y, Wu Y, Feng J, Dong S, Liu H, Sun J. Hydroxyl regulating effect on surface structure of BiOBr photocatalyst toward high-efficiency degradation performance. CHEMOSPHERE 2022; 287:132246. [PMID: 34543902 DOI: 10.1016/j.chemosphere.2021.132246] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 09/08/2021] [Accepted: 09/11/2021] [Indexed: 06/13/2023]
Abstract
Herein, photocatalytic degradation of levofloxacin hydrochloride (LVF) by a simple surface hydroxyl strategy on BiOBr photocatalyst was studied under simulated visible light irradiation. Interestingly, the BiOBr contained abundant hydroxyl groups following its modification with glucose, which enhanced the photocatalytic degradation of levofloxacin hydrochloride (LVF). The degradation efficiency of LVF over the optimized composite of BiOBr-5 could reach 91.67% in 20 min, which was much higher than that of pristine BiOBr (59.26%). Following, the biotoxicity of antibiotics to Escherichia coli DH5a could be eliminated after LVF photocatalytic degradation. This strategy proposed in this work can provide new ideas for tuning the surface structures of photocatalysts via specific functional groups for the highly efficient degradation and efficient removal of antibiotics in wastewater.
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Affiliation(s)
- Cuiwei Du
- School of Environment, Henan Normal University, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, Xinxiang, Henan, 453007, PR China
| | - Shiyu Nie
- School of Environment, Henan Normal University, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, Xinxiang, Henan, 453007, PR China
| | - Weiwei Feng
- School of Environment, Henan Normal University, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, Xinxiang, Henan, 453007, PR China
| | - Jiale Zhang
- School of Environment, Henan Normal University, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, Xinxiang, Henan, 453007, PR China
| | - Mingshuo Qi
- School of Environment, Henan Normal University, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, Xinxiang, Henan, 453007, PR China
| | - Yutong Liang
- School of Environment, Henan Normal University, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, Xinxiang, Henan, 453007, PR China
| | - Yuhan Wu
- School of Environment, Henan Normal University, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, Xinxiang, Henan, 453007, PR China
| | - Jinglan Feng
- School of Environment, Henan Normal University, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, Xinxiang, Henan, 453007, PR China
| | - Shuying Dong
- School of Environment, Henan Normal University, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, Xinxiang, Henan, 453007, PR China.
| | - Haijin Liu
- School of Environment, Henan Normal University, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, Xinxiang, Henan, 453007, PR China.
| | - Jianhui Sun
- School of Environment, Henan Normal University, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, Xinxiang, Henan, 453007, PR China.
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li Zhao W, hua Gao Y, Zhang D. Hydrothermal synthesis of spherical g-C3N4 and CdS composite photocatalyst with enhanced visible light photocatalytic activity. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2021.139268] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Tayyab M, Liu L, Lee CH. Efficient solar light facilitated photo-oxidative detoxification of gaseous 2-chloroethyl ethyl sulfide on ZrO 2-doped g-C 3N 4 under dry and humid air. CHEMOSPHERE 2021; 280:130685. [PMID: 33951582 DOI: 10.1016/j.chemosphere.2021.130685] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 04/19/2021] [Accepted: 04/21/2021] [Indexed: 06/12/2023]
Abstract
Photo-oxidation of chemical warfare agents is considered a promising strategy to cope with threats from accidental or intentional release. In this study, heterostructure photocatalysts comprising different amounts of zirconium oxide (ZrO2) over carbon nitride (CN) were synthesized via simple thermal exfoliation, followed by a precipitation method. The successful photocatalytic detoxification activity of the as-prepared photocatalyst was analyzed against 2-chloroethyl ethyl sulfide (CEES) under simulated solar light and natural sunlight irradiation in dry and humid air. As the CN/ZrO2 demonstrated a high surface area and oxygen doping, the addition of small amounts of the ZrO2 phase could lead to enhanced photoreactivity in surface chemistry. The as-prepared (CN/ZrO2-II) degraded 95% of CEES under simulated solar light and 70% under natural sunlight within 90 min. The photo-detoxification of CEES was associated with the generation of holes (h+) and activation of oxygen to superoxide radicals (•O2). Based on analysis results, a reaction mechanism was suggested. The activity of the used photocatalyst could be recovered to 90% of the fresh photocatalyst activity via simple water washing. However, as sulfurous compounds were accumulated on the surface in subsequent cyclic tests, solvent washing was also suggested to maintain high detoxification performance.
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Affiliation(s)
- Muhammad Tayyab
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Lei Liu
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Chang-Ha Lee
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul, 03722, Republic of Korea.
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Abstract
Environmental and human health are threatened by anthropogenic heavy metal discharge into watersheds. Traditional processes have many limitations, such as low efficiency, high cost, and by-products. Photocatalysis, an emerging advanced catalytic oxidation technology, uses light energy as the only source of energy. It is a clean new technology that can be widely used in the treatment of organic pollutants in water. Given the excellent adaptability of photocatalysis in environmental remediation, it can be used for the treatment of heavy metals. In this comprehensive review, the existing reported works in relevant areas are summarized and discussed. Moreover, recommendations for future work are provided.
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Ren G, Han H, Wang Y, Liu S, Zhao J, Meng X, Li Z. Recent Advances of Photocatalytic Application in Water Treatment: A Review. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1804. [PMID: 34361190 PMCID: PMC8308214 DOI: 10.3390/nano11071804] [Citation(s) in RCA: 97] [Impact Index Per Article: 32.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 07/02/2021] [Accepted: 07/07/2021] [Indexed: 02/02/2023]
Abstract
Photocatalysis holds great promise as an efficient and sustainable oxidation technology for application in wastewater treatment. Rapid progress developing novel materials has propelled photocatalysis to the forefront of sustainable wastewater treatments. This review presents the latest progress on applications of photocatalytic wastewater treatment. Our focus is on strategies for improving performance. Challenges and outlooks in this promising field are also discussed. We hope this review will help researchers design low-cost and high-efficiency photocatalysts for water treatment.
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Affiliation(s)
| | | | | | | | | | | | - Zizhen Li
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China; (G.R.); (H.H.); (Y.W.); (S.L.); (J.Z.); (X.M.)
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Jiang R, Lu G, Yan Z, Liu J, Wu D, Wang Y. Microplastic degradation by hydroxy-rich bismuth oxychloride. JOURNAL OF HAZARDOUS MATERIALS 2021; 405:124247. [PMID: 33087290 DOI: 10.1016/j.jhazmat.2020.124247] [Citation(s) in RCA: 72] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 10/07/2020] [Accepted: 10/08/2020] [Indexed: 05/26/2023]
Abstract
Microplastics, as a class of widely dispersed persistent pollutants, the main reactive oxygen species is far from clarified in their photocatalytic degradation. In this study, a novel hydroxy-rich ultrathin BiOCl (BiOCl-X) was prepared at room temperature. BiOCl-X shows a strong potential for photocatalytic degradation of microplastics, and the mass loss of plastics is 24 times higher than that of the BiOCl nanosheets. More importantly, we explored the photocatalytic mechanism through electron paramagnetic resonance and capture experiments, and found that the surface hydroxyl of BiOCl can effectively enhance the production of hydroxyl radicals, resulting in boosting degradation performance. Here, we provide new insights that photocatalytic degradation of microplastic is dependent on surface hydroxyl groups. This work could be useful for controllable designs of hydroxy-rich photocatalysts for applications in microplastic degradation.
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Affiliation(s)
- Runren Jiang
- Key Laboratory of Integrated Regulation and Resources Development of Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China
| | - Guanghua Lu
- Key Laboratory of Integrated Regulation and Resources Development of Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China.
| | - Zhenhua Yan
- Key Laboratory of Integrated Regulation and Resources Development of Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China
| | - Jianchao Liu
- Key Laboratory of Integrated Regulation and Resources Development of Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China
| | - Donghai Wu
- Key Laboratory of Integrated Regulation and Resources Development of Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China
| | - Yonghua Wang
- Key Laboratory of Integrated Regulation and Resources Development of Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China
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Kumar A, Sharma SK, Sharma G, Guo C, Vo DVN, Iqbal J, Naushad M, Stadler FJ. Silicate glass matrix@Cu 2O/Cu 2V 2O 7 p-n heterojunction for enhanced visible light photo-degradation of sulfamethoxazole: High charge separation and interfacial transfer. JOURNAL OF HAZARDOUS MATERIALS 2021; 402:123790. [PMID: 33254799 DOI: 10.1016/j.jhazmat.2020.123790] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 08/04/2020] [Accepted: 08/16/2020] [Indexed: 06/12/2023]
Abstract
Focusing on the treatment of pharmaceuticals contaminated water by advanced oxidation processes, a novel three dimensional silicate glass matrix (3-DG) coupled Cu2O/Cu2V2O7 p-n heterojunction was constructed by in-situ hydrothermal technique. The optimal Cu2O/Cu2V2O7 with 30 wt % Cu2V2O7 (CV-30) degrades 90.1 % sulfamethoxazole (SMX) in 60 min and nearly 100 % removal in 45 min via coupling with 3-DG. Under natural sunlight ∼ 80 % SMX removal was observed. The internal electric field of the p-n junction facilitates the electron flow via the interface. 3-D silicate glass increases the visible light absorption dramatically via internal reflection which facilitates higher exposure for the junction and shortens the diffusion length of charge carriers. The effect of reaction parameters suggests that HCO3- and CO32- ions substantially escalate the SMX removal rate. Scavenging experiments and ESR probe suggest O2- as the main active species followed by OH radicals. The degradation products were detected by LC-MS analysis and a degradation mechanism was also predicted. The photocatalytic mechanism was explained in terms of the electron transfer facilitated by conventional transfer and Z-scheme. This strategy to construct such highly visible and solar active p-n heterojunctions will pave way for future opportunities for the degradation of recalcitrant pharmaceutical pollutants.
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Affiliation(s)
- Amit Kumar
- College of Materials Science and Engineering, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, Nanshan District Key Laboratory for Biopolymers and Safety Evaluation, Shenzhen University, Shenzhen, 518055, PR China; School of Chemistry, Shoolini University, Solan, Himachal Pradesh, 173229, India.
| | - Sunil Kumar Sharma
- School of Chemistry, Shoolini University, Solan, Himachal Pradesh, 173229, India
| | - Gaurav Sharma
- College of Materials Science and Engineering, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, Nanshan District Key Laboratory for Biopolymers and Safety Evaluation, Shenzhen University, Shenzhen, 518055, PR China; School of Chemistry, Shoolini University, Solan, Himachal Pradesh, 173229, India
| | - Changsheng Guo
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, PR China
| | - Dai-Viet N Vo
- Center of Excellence for Green Energy and Environmental Nanomaterials (CE@GrEEN), Nguyen Tat Thanh University, 300A Nguyen Tat Thanh, District 4, Ho Chi Minh City, 755414, Viet Nam
| | - Jibran Iqbal
- College of Natural and Health Sciences, Zayed University, P.O. Box 144534, Abu Dhabi, United Arab Emirates
| | - Mu Naushad
- Department of Chemistry, College of Science, Building#5, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Florian J Stadler
- College of Materials Science and Engineering, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, Nanshan District Key Laboratory for Biopolymers and Safety Evaluation, Shenzhen University, Shenzhen, 518055, PR China.
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17
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Zhai H, Tan P, Lu L, Liu H, Liu Y, Pan J. Abundant hydroxyl groups decorated on nitrogen vacancy-embedded g-C 3N 4 with efficient photocatalytic hydrogen evolution performance. Catal Sci Technol 2021. [DOI: 10.1039/d1cy00359c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Engineering hydroxyl and N vacancies on g-C3N4 led to dual mitigation of the recombination rate of photogenerated carriers, which was achieved by enriched hydroxyl groups trapping the holes and stable N vacancies capturing the electrons.
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Affiliation(s)
- Huanhuan Zhai
- Powder Metallurgy Research Institute
- Central South University
- Changsha 410083
- China
| | - Pengfei Tan
- Powder Metallurgy Research Institute
- Central South University
- Changsha 410083
- China
| | - Lili Lu
- Powder Metallurgy Research Institute
- Central South University
- Changsha 410083
- China
| | - Hongqin Liu
- Powder Metallurgy Research Institute
- Central South University
- Changsha 410083
- China
| | - Yong Liu
- Powder Metallurgy Research Institute
- Central South University
- Changsha 410083
- China
| | - Jun Pan
- Powder Metallurgy Research Institute
- Central South University
- Changsha 410083
- China
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18
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Jiang H, Zang C, Cheng H, Sun B, Gao X. Photocatalytic green synthesis of benzazoles from alcohol oxidation/toluene sp 3 C–H activation over metal-free BCN: effect of crystallinity and N–B pair exposure. Catal Sci Technol 2021. [DOI: 10.1039/d1cy01623g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Porous borocarbonitride, with characteristics of enhanced crystallinity and improved N–B pairs exposure, was employed for the heterogeneous photocatalytic tandem synthesis of benzazoles from alcohol oxidation/toluene sp3 C–H activation.
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Affiliation(s)
- Heyan Jiang
- Key Laboratory of Catalysis Science and Technology of Chongqing Education Commission, Chongqing Key Laboratory of Catalysis and New Environmental Materials, Chongqing Technology and Business University, Chongqing 400067, P. R. China
| | - Cuicui Zang
- Key Laboratory of Catalysis Science and Technology of Chongqing Education Commission, Chongqing Key Laboratory of Catalysis and New Environmental Materials, Chongqing Technology and Business University, Chongqing 400067, P. R. China
| | - Hongmei Cheng
- Key Laboratory of Catalysis Science and Technology of Chongqing Education Commission, Chongqing Key Laboratory of Catalysis and New Environmental Materials, Chongqing Technology and Business University, Chongqing 400067, P. R. China
| | - Bin Sun
- Key Laboratory of Catalysis Science and Technology of Chongqing Education Commission, Chongqing Key Laboratory of Catalysis and New Environmental Materials, Chongqing Technology and Business University, Chongqing 400067, P. R. China
| | - Xue Gao
- Key Laboratory of Catalysis Science and Technology of Chongqing Education Commission, Chongqing Key Laboratory of Catalysis and New Environmental Materials, Chongqing Technology and Business University, Chongqing 400067, P. R. China
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19
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Rare-Earth Metals-Doped Nickel Aluminate Spinels for Photocatalytic Degradation of Organic Pollutants. Catalysts 2020. [DOI: 10.3390/catal10091003] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Visible-light-activated photocatalysts based on samarium-doped, europium-doped, and gadolinium-doped nickel aluminates (SmNA, EuNA, GdNA) were synthesized. The spinel crystalline structures of the doped mixed metal oxides were demonstrated by X-ray diffraction (XRD) and transmission electron microscopy (TEM) analysis. The presence of the rare-earth metals (REMs) was confirmed by the energy-dispersive X-ray (EDX) studies. Ultraviolet-visible-near-infrared (UV-Vis-NIR) spectra revealed that the REMs-doped catalysts absorb in the full solar spectrum range covering both visible and near infrared wavelengths. Scanning electron microscopy (SEM) visualized the profound morphological alterations of the doped nickel aluminate samples. Consequently, the pore volume and the Brunauer-Emmett-Teller (BET) surface area decreased, while nanoparticles sizes increased. Fourier-transform infrared spectroscopy (FTIR) exposed that surfaces of REMs-doped nickel aluminates are rich in hydroxyl groups. Finally, the photocatalytic performance was notably increased through doping nickel aluminate (NA) with REMs; the highest activity was observed for EuNA.
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20
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Chen Z, Zhang S, Liu Y, Alharbi NS, Rabah SO, Wang S, Wang X. Synthesis and fabrication of g-C 3N 4-based materials and their application in elimination of pollutants. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 731:139054. [PMID: 32413656 DOI: 10.1016/j.scitotenv.2020.139054] [Citation(s) in RCA: 110] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 04/18/2020] [Accepted: 04/26/2020] [Indexed: 05/21/2023]
Abstract
With the fast development of industrial and human activity, large amounts of persistent organic pollutants, heavy metal ions and radionuclides are released into the natural environment, which results in environmental pollution. The efficient elimination of the natural environment is crucial for the protection of environment to against the pollutants' toxicity to human beings and living organisms. Graphitic carbon nitride (g-C3N4) has drawn multidisciplinary attention especially in environmental pollutants' cleanup due to its special physicochemical properties. In this review, we summarized the recent works about the synthesis of g-C3N4, element-doping, structure modification of g-C3N4 and g-C3N4-based materials, and their application in the sorption, photocatalytic degradation and reduction-solidification of persistent organic pollutants and heavy metal ions. The interaction mechanisms were discussed from advanced spectroscopic analysis and computational approaches at molecular level. The challenges and future perspectives of g-C3N4-based materials' application in environmental pollution management are presented in the end. This review highlights the real applications of g-C3N4-based materials as adsorbents or photocatalysts in the adsorption-reduction-solidification of metal ions or photocatalytic degradation of organic pollutants. The contents are helpful for the undergraduate students to understand the recent works in the elimination of organic/inorganic pollutants in their pollution management.
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Affiliation(s)
- Zhongshan Chen
- Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering, North China Electric Power University, Baoding 071003, PR China; College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, PR China
| | - Sai Zhang
- College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, PR China
| | - Yang Liu
- College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, PR China
| | - Njud Saleh Alharbi
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Samar Omar Rabah
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Suhua Wang
- College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, PR China; School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, 525000, PR China
| | - Xiangxue Wang
- Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering, North China Electric Power University, Baoding 071003, PR China; College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, PR China.
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21
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Abstract
As a byproduct of emerging as one of the world’s key producers of pharmaceuticals, China is now challenged by the emission of harmful pharmaceutical VOCs. In this review, the catalogue and volume of VOCs emitted by the pharmaceutical industry in China was introduced. The commonly used VOC removal processes and technologies was recommended by some typical examples. The progress of catalytic combustion, photocatalytic oxidation, non-thermal plasma, and electron beam treatment were presented, especially the development of catalysts. The advantages and shortages of these technologies in recent years were discussed and analyzed. Lastly, the development of VOCs elimination technologies and the most promising technology were discussed.
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22
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Zhu M, Qin C, Wang JJ, Sun J, Dai L. Cone-shaped titanate immobilized on polyacrylonitrile nanofibers: hierarchical architecture for effective photocatalytic activity. Dalton Trans 2020; 49:4067-4077. [PMID: 32134065 DOI: 10.1039/c9dt04934g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new photocatalytic composite material, based on flexible functional polyacrylonitrile nanofibers (denoted as f-PAN NF), was developed by depositing composite layers of α-TiO2 and cone-shaped titanate (H2Ti5O11·3H2O) successively. The α-TiO2 coated on f-PAN NF as a seed accelerated the nucleation of titanate. Cone-shaped titanate deposited on α-TiO2@f-PAN NF tightly at 35 °C with the assistance of cyanuric acid via Ostwald ripening. Due to the uniform distribution of cone-shaped titanate, the photocatalytic performance of hybrid f-PAN NF was remarkable under LED light irradiation and yielded additional photocatalytic applications as well. In addition, the composite photocatalyst exhibited better reusability and retrievability because of the special design involving a bonding between the nanofibers and layers.
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Affiliation(s)
- Mingyue Zhu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
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23
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Abstract
Hydrogen is considered to be an ideal energy carrier to achieve low-carbon economy and sustainable energy supply. Production of hydrogen by catalytic reforming of organic compounds is one of the most important commercial processes. With the rapid development of photocatalysis in recent years, the applications of photocatalysis have been extended to the area of reforming hydrogen evolution. This research area has attracted extensive attention and exhibited potential for wide application in practice. Photocatalytic reforming for hydrogen evolution is a sustainable process to convert the solar energy stored in hydrogen into chemical energy. This review comprehensively summarized the reported works in relevant areas, categorized by the reforming precursor (organic compound) such as methanol, ethanol and biomass. Mechanisms and characteristics for each category were deeply discussed. In addition, recommendations for future work were suggested.
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24
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Liu Y, Yu Y, Mu Z, Wang Y, Ali U, Jing S, Xing S. Urea-assisted enhanced electrocatalytic activity of MoS2–Ni3S2 for overall water splitting. Inorg Chem Front 2020. [DOI: 10.1039/d0qi00634c] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Urea-assisted enhanced electrocatalytic activity of MoS2–Ni3S2 as a bifunctional electrocatalyst for overall water splitting.
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Affiliation(s)
- Yuqi Liu
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- China
| | - Yue Yu
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- China
| | - Zhongcheng Mu
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- China
| | - Yuanhong Wang
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- China
| | - Usman Ali
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- China
| | - Shengyu Jing
- School of Information and Control Engineering
- China University of Mining and Technology
- Xuzhou
- China
| | - Shuangxi Xing
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- China
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