1
|
Wang M, Sun W, Li M, Wu X, Chen C, Cai T, Zeng Q, Hua Y, Wang L, Xie H. π-electron injection activated dormant ligands in graphitic carbon nitride for efficient and stable uranium extraction. JOURNAL OF HAZARDOUS MATERIALS 2024; 478:135445. [PMID: 39116743 DOI: 10.1016/j.jhazmat.2024.135445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2024] [Revised: 08/04/2024] [Accepted: 08/05/2024] [Indexed: 08/10/2024]
Abstract
Graphitic carbon nitride (CN) as an adsorbent exhibit promising potential for the removal of uranium in water. However, the lack of active sites seriously restricts its practical application. In contrast to the traditional method of introducing new ligands, we propose a strategy to activate original ligands on CN by injecting π electrons, which can be realized by grafting 4-phenoxyphenol (PP) on CN (PCN). Compared with CN, the maximum adsorption capacity of PCN for uranium increased from 150.9 mg/g to 380.6 mg/g. Furthermore, PCN maintains good adsorption properties over a wide range of uranium concentrations (1 ∼ 60 mg/L) and pH (4 ∼ 8). After 5 consecutive cycles, PCN exhibited sustained uranium removal performance with a little of losses. The experimental and theoretical results show that the enhancement of adsorption performance is mainly due to the ligands activation of CN by delocalization of π electrons from PP. Furthermore, this activation can be enhanced by irradiation, as the CN can be photoexcited to provide additional photoelectrons for PP. As a result, dormant ligands such as N-CN, C-O-C, C-N-H and N-(C)3 can be activated to participate in coordination with uranium. This work provides theoretical guidance for the design and preparation of high efficiency uranium adsorbent.
Collapse
Affiliation(s)
- Minjie Wang
- School of Resources Environment and Safety Engineering, University of South China, Hengyang, Hunan 421001, PR China
| | - Wenxiu Sun
- School of Resources Environment and Safety Engineering, University of South China, Hengyang, Hunan 421001, PR China
| | - Mi Li
- School of Resources Environment and Safety Engineering, University of South China, Hengyang, Hunan 421001, PR China
| | - Xiaoyan Wu
- School of Resources Environment and Safety Engineering, University of South China, Hengyang, Hunan 421001, PR China
| | - Chaomeng Chen
- School of Resources Environment and Safety Engineering, University of South China, Hengyang, Hunan 421001, PR China; Boke Environmental Engineering Co., Ltd. of Hunan Province, Hengyang, Hunan 421001, PR China
| | - Tao Cai
- School of Resources Environment and Safety Engineering, University of South China, Hengyang, Hunan 421001, PR China.
| | - Qingyi Zeng
- School of Resources Environment and Safety Engineering, University of South China, Hengyang, Hunan 421001, PR China.
| | - Yilong Hua
- School of Resources Environment and Safety Engineering, University of South China, Hengyang, Hunan 421001, PR China
| | - Longlu Wang
- College of Electronic and Optical Engineering & College of Flexible Electronics (Future Technology), Nanjing University of Posts & Telecommunications (NJUPT), Wenyuan Road, Nanjing 210023, PR China
| | - Haijiao Xie
- Hangzhou Yanqu Information Technology Co., Ltd., Y2, 2nd Floor, Building 2, Xixi Legu Creative Pioneering Park, No. 712 Wen'er West Road, Xihu District, Hangzhou City, Zhejiang Province 310003, PR China
| |
Collapse
|
2
|
Lykos C, Bairamis F, Efthymiou C, Konstantinou I. Synthesis and Characterization of Composite WO 3 Fibers/g-C 3N 4 Photocatalysts for the Removal of the Insecticide Clothianidin in Aquatic Media. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:1045. [PMID: 38921921 PMCID: PMC11206630 DOI: 10.3390/nano14121045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2024] [Revised: 06/07/2024] [Accepted: 06/13/2024] [Indexed: 06/27/2024]
Abstract
Photocatalysis is a prominent alternative wastewater treatment technique that has the potential to completely degrade pesticides as well as other persistent organic pollutants, leading to detoxification of wastewater and thus paving the way for its efficient reuse. In addition to the more conventional photocatalysts (e.g., TiO2, ZnO, etc.) that utilize only UV light for activation, the interest of the scientific community has recently focused on the development and application of visible light-activated photocatalysts like g-C3N4. However, some disadvantages of g-C3N4, such as the high recombination rate of photogenerated charges, limit its utility. In this light, the present study focuses on the synthesis of WO3 fibers/g-C3N4 Z-scheme heterojunctions to improve the efficiency of g-C3N4 towards the photocatalytic removal of the widely used insecticide clothianidin. The effect of two different g-C3N4 precursors (urea and thiourea) and of WO3 fiber content on the properties of the synthesized composite materials was also investigated. All aforementioned materials were characterized by a number of techniques (XRD, SEM-EDS, ATR-FTIR, Raman spectroscopy, DRS, etc.). According to the results, mixing 6.5% W/W WO3 fibers with either urea or thiourea derived g-C3N4 significantly increased the photocatalytic activity of the resulting composites compared to the precursor materials. In order to further elucidate the effect of the most efficient composite photocatalyst in the degradation of clothianidin, the generated transformation products were tentatively identified through UHPLC tandem high-resolution mass spectroscopy. Finally, the detoxification effect of the most efficient process was also assessed by combining the results of an in-vitro methodology and the predictions of two in-silico tools.
Collapse
Affiliation(s)
- Christos Lykos
- Department of Chemistry, University of Ioannina, 45110 Ioannina, Greece; (C.L.); (F.B.); (C.E.)
| | - Feidias Bairamis
- Department of Chemistry, University of Ioannina, 45110 Ioannina, Greece; (C.L.); (F.B.); (C.E.)
| | - Christina Efthymiou
- Department of Chemistry, University of Ioannina, 45110 Ioannina, Greece; (C.L.); (F.B.); (C.E.)
| | - Ioannis Konstantinou
- Department of Chemistry, University of Ioannina, 45110 Ioannina, Greece; (C.L.); (F.B.); (C.E.)
- Institute of Environment and Sustainable Development, University Research Center of Ioannina (URCI), 45110 Ioannina, Greece
| |
Collapse
|
3
|
Liu W, Dong Z, Liu J, Li Z, Wang Y, Cao X, Zhang Z, Liu Y. Hollow S-Doped ZnFe 2O 4 Microcubes with Magnetic Separability for Photocatalytic Removal of Uranium(VI) under Different Light Intensity. Inorg Chem 2024; 63:11369-11380. [PMID: 38818647 DOI: 10.1021/acs.inorgchem.4c01423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2024]
Abstract
Under xenon lamps, ZnFe2O4 (ZFO) has been shown to be effective in removing uranium through photocatalysis. However, its performance is still inadequate in low-light environments due to low photon utilization and high electron-hole complexation. Herein, S-doped hollow ZnFe2O4 microcubes (Sx-H-ZFO, x = 1, 3, 6, 9) were synthesized using the MOF precursor template method. The hollow morphology improves the utilization of visible light by refracting and reflecting the incident light multiple times within the confined domain. S doping narrows the band gap and shifts the conduction band position negatively, which enhances the separation, migration, and accumulation of photogenerated charges. Additionally, S doping increases the number of adsorption sites, ultimately promoting efficient surface reactions. Consequently, Sx-H-ZFO is capable of removing U(VI) in low-light environments. Under cloudy and rainy weather conditions, the photocatalytic rate of S3-H-ZFO was 100.31 μmol/(g·h), while under LED lamps (5000 Lux) it was 72.70 μmol/(g·h). More interestingly, a systematic mechanistic investigation has revealed that S doping replaces some of the oxygen atoms to enhance electron transfers and adsorption of O2. This process initiates the formation of hydrogen peroxide, which reacts directly with UO22+ to form solid studtite (UO2)O2·2H2O. Additionally, the promising magnetic separation capability of Sx-H-ZFO facilitates the recycling and reusability of the material. This work demonstrates the potential of ZnFe2O4 extraction uranium from nuclear wastewater.
Collapse
Affiliation(s)
- Weiping Liu
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, Jiangxi 330013, P. R. China
| | - Zhimin Dong
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, Jiangxi 330013, P. R. China
| | - Jiayu Liu
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, Jiangxi 330013, P. R. China
| | - Zifan Li
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, Jiangxi 330013, P. R. China
| | - Youqun Wang
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, Jiangxi 330013, P. R. China
| | - Xiaohong Cao
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, Jiangxi 330013, P. R. China
| | - Zhibin Zhang
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, Jiangxi 330013, P. R. China
- State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang, Jiangxi 330013, P. R. China
| | - Yunhai Liu
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, Jiangxi 330013, P. R. China
- State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang, Jiangxi 330013, P. R. China
| |
Collapse
|
4
|
Wang L, Zheng H, Hu C, Zeng H, Ma X, Li Q, Li X, Zhou S, Deng J. Novel UV-LED-driven photocatalysis-chlorine activation for carbamazepine degradation by sulfur-doped NH 2-MIL 53 (Fe) composites: Electronic modulation effect and the dual role of chlorine. JOURNAL OF HAZARDOUS MATERIALS 2024; 464:133037. [PMID: 37995635 DOI: 10.1016/j.jhazmat.2023.133037] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 11/02/2023] [Accepted: 11/16/2023] [Indexed: 11/25/2023]
Abstract
Chlorine activation-inefficient and the generation of disinfection by-products (DBPs) has indeed limited the application of UV/chlorine process. In this study, the typical metal-organic frameworks (MOFs) NH2-MIL53(Fe) were successfully modified with organic ligands containing sulfur functional groups and applied to construct a novel UV-LED-driven heterogeneous chlorine activation system. The generation of intermediate energy levels and the charge redistribution effect on Fe-S bond facilitated the excitation of electrons and realized the effective separation of photohole (hvb+) and photoelectron (ecb-). The involvement of S-NH2-MIL53(Fe) improved the efficiency of UV-LED/chlorine process by 6 times. The effective activation of HOCl/OCl- by hvb+ and ecb- significantly enhanced the yield of HO· and Cl·. More importantly, HOCl/OCl- played a dual role in UV-LED/chlorine/S-NH2-MIL53(Fe) process as a precursor for the generation of free radicals and a catalyst for the enhancement of HO· yield, which could achieve efficient removal of the target pollutants at lower chlorine doses. In addition, the presence of low-valent sulfur species and ecb- accelerated the cycle of Fe(II)/Fe(III) and in-situ generation of HO· and Cl·. The known generation of DBPs in UV-LED/chlorine/S-NH2-MIL53(Fe) process decreased by 37.9% compared to UV-LED/chlorine process. Developing novel UV-LED/chlorine/S-NH2-MIL53(Fe) processes provided a reliable strategy to efficiently purify actual micro-polluted water bodies.
Collapse
Affiliation(s)
- Lei Wang
- College of Civil Engineering, Zhejiang University of Technology, Hangzhou 310023, China
| | - Huiming Zheng
- College of Civil Engineering, Zhejiang University of Technology, Hangzhou 310023, China
| | - Chenkai Hu
- College of Civil Engineering, Zhejiang University of Technology, Hangzhou 310023, China
| | - Hanxuan Zeng
- College of Civil Engineering, Zhejiang University of Technology, Hangzhou 310023, China; Zhejiang Key Laboratory of Civil Engineering Structures & Disaster Prevention and Mitigation Technology, Hangzhou 310023, China
| | - Xiaoyan Ma
- College of Civil Engineering, Zhejiang University of Technology, Hangzhou 310023, China; Zhejiang Key Laboratory of Civil Engineering Structures & Disaster Prevention and Mitigation Technology, Hangzhou 310023, China
| | - Qingsong Li
- Water Resources and Environmental Institute, Xiamen University of Technology, Xiamen 361005, China
| | - Xueyan Li
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Shiqing Zhou
- Hunan Engineering Research Center of Water Security Technology and Application, Key Laboratory of Building Safety and Energy Efficiency, Ministry of Education, Hunan University, Changsha 410082, China
| | - Jing Deng
- College of Civil Engineering, Zhejiang University of Technology, Hangzhou 310023, China; Zhejiang Key Laboratory of Civil Engineering Structures & Disaster Prevention and Mitigation Technology, Hangzhou 310023, China.
| |
Collapse
|
5
|
Zhu W, Li X, Wang D, Fu F, Liang Y. Advanced Photocatalytic Uranium Extraction Strategies: Progress, Challenges, and Prospects. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2005. [PMID: 37446529 DOI: 10.3390/nano13132005] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 07/03/2023] [Accepted: 07/04/2023] [Indexed: 07/15/2023]
Abstract
Nuclear energy with low carbon emission and high-energy density is considered as one of the most promising future energy sources for human beings. However, the use of nuclear energy will inevitably lead to the discharge of nuclear waste and the consumption of uranium resources. Therefore, the development of simple, efficient, and economical uranium extraction methods is of great significance for the sustainable development of nuclear energy and the restoration of the ecological environment. Photocatalytic U(VI) extraction technology as a simple, highly efficient, and low-cost strategy, received increasing attention from researchers. In this review, the development background of photocatalytic U(VI) extraction and several photocatalytic U(VI) reduction mechanisms are briefly described and the identification methods of uranium species after photocatalytic reduction are addressed. Subsequently, the modification strategies of several catalysts used for U(VI) extraction are summarized and the advantages and disadvantages of photocatalytic U(VI) extraction are compared. Additionally, the research progress of photocatalytic technology for U(VI) extraction in actual uranium-containing wastewater and seawater are evaluated. Finally, the current challenges and the developments of photocatalytic U(VI) extraction technology in the future are prospected.
Collapse
Affiliation(s)
- Wangchuan Zhu
- Research Institute of Comprehensive Energy Industry Technology, School of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, China
| | - Xiang Li
- Research Institute of Comprehensive Energy Industry Technology, School of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, China
| | - Danjun Wang
- Research Institute of Comprehensive Energy Industry Technology, School of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, China
| | - Feng Fu
- Research Institute of Comprehensive Energy Industry Technology, School of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, China
| | - Yucang Liang
- Institute of Inorganic Chemistry, University of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| |
Collapse
|
6
|
Yin Z, Li M, Li Z, Deng Y, Xue M, Chen Y, Ou J, Lei S, Luo Y, Xie C. A harsh environment resistant robust Co(OH) 2@stearic acid nanocellulose-based membrane for oil-water separation and wastewater purification. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 342:118127. [PMID: 37178465 DOI: 10.1016/j.jenvman.2023.118127] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 05/03/2023] [Accepted: 05/07/2023] [Indexed: 05/15/2023]
Abstract
Traditional membranes are inefficient in treating highly toxic organic pollutants and oily wastewater in harsh environments, which is difficult to meet the growing demand for green development. Herein, the Co(OH)2@stearic acid nanocellulose-based membrane was prepared by depositing Co(OH)2 on the nanocellulose-based membrane (NBM) through chemical soaking method, which enables efficient oil/water mixtures separation and degradation of pollutants by photocatalysis in harsh environments. The Co(OH)2@stearic acid nanocellulose-based membrane (Co(OH)2@stearic acid NBM) shows good photocatalytic degradation performance for methylene blue pollutants in harsh environment, and has significant degradation rate (93.66%). At the same time, the Co(OH)2@stearic acid NBM with superhydrophobicity and superoleophilicity also exhibits respectable oil/water mixtures separation performance (n-Hexane, dimethyl carbonate, chloroform and toluene) under harsh environment (strong acid/strong alkali), which has an excellent oil-water mixtures separation flux of 87 L·m-2·h-1 (n-Hexane/water) and oil-water mixture separation efficiency of over 93% (n-Hexane/water). In addition, this robust Co(OH)2@stearic acid NBM shows good self-cleaning and recycling performance. Even though seven oil-water separation tests have been carried out under harsh environment, it can still maintain respectable oil-water mixture separation rate and flux. The multifunctional membrane has excellent resistance to harsh environments, oil-water separation and pollutant degradation can be performed even in harsh environments, which provides a convenient way to treat sewage under harsh conditions efficiently and has great potential in practical application.
Collapse
Affiliation(s)
- Zuozhu Yin
- School of Aerospace Manufacturing Engineering, Nanchang Hangkong University, 696 Fenghe South Road, Nanchang, 330063, China
| | - Min Li
- School of Aerospace Manufacturing Engineering, Nanchang Hangkong University, 696 Fenghe South Road, Nanchang, 330063, China
| | - Zihao Li
- School of Aerospace Manufacturing Engineering, Nanchang Hangkong University, 696 Fenghe South Road, Nanchang, 330063, China
| | - Yuanting Deng
- School of Aerospace Manufacturing Engineering, Nanchang Hangkong University, 696 Fenghe South Road, Nanchang, 330063, China
| | - Mingshan Xue
- School of Materials Science and Engineering, Nanchang Hangkong University, Nanchang, 330063, China.
| | - Yuhua Chen
- School of Aerospace Manufacturing Engineering, Nanchang Hangkong University, 696 Fenghe South Road, Nanchang, 330063, China
| | - Junfei Ou
- School of Materials Engineering, Jiangsu University of Technology, Changzhou, 213001, China
| | - Sheng Lei
- School of Materials Engineering, Jiangsu University of Technology, Changzhou, 213001, China
| | - Yidan Luo
- School of Materials Science and Engineering, Nanchang Hangkong University, Nanchang, 330063, China
| | - Chan Xie
- School of Materials Science and Engineering, Nanchang Hangkong University, Nanchang, 330063, China
| |
Collapse
|
7
|
Wu Z, Wang B, Zhu Y, Xue J, Nie Y, Xie Z, Le Z. Synthesis of crystalline carbon nitride with molten salt thermal treatment for efficient photocatalytic reduction and removal of U(VI). RESEARCH ON CHEMICAL INTERMEDIATES 2023. [DOI: 10.1007/s11164-023-04993-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
|
8
|
Wang J, Li P, Wang Y, Liu Z, Wang D, Liang J, Fan Q. New Strategy for the Persistent Photocatalytic Reduction of U(VI): Utilization and Storage of Solar Energy in K + and Cyano Co-Decorated Poly(Heptazine Imide). ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2205542. [PMID: 36511158 PMCID: PMC9929247 DOI: 10.1002/advs.202205542] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 11/30/2022] [Indexed: 06/17/2023]
Abstract
The photocatalytic conversion of soluble U(VI) into insoluble U(IV) is a robust strategy to harvest aqueous uranium, but remains challenging owing to the intermittent availability of solar influx and reoxidation of U(IV) without illumination. Herein, a dual platform based on K+ and cyano group co-decorated poly(heptazine imide) (K-CN-PHI) is reported that can drive persistent U(VI) extraction upon/beyond light. K-CN-PHI achieves the photocatalytic reduction of U(VI) with a reaction rate of 0.89 min-1 , being 47 times greater than that over pristine carbon nitride (PCN). This system can further be triggered by light to form long-living radicals, driving the reduction of U(VI) in the dark for over 3 d. The flexible structural K+ as counterions stabilize the electrons trapped by cyanamide groups, enabling the long lifetime of the generated radicals. The results collectively prove K-CN-PHI to be a novel and efficient photocatalyst enabling persistent U(VI) extraction around the clock, and broadening the practical applications of the photocatalytic extraction of U(VI).
Collapse
Affiliation(s)
- Jingjing Wang
- Northwest Institute of Eco‐Environment ResourcesChinese Academy of SciencesLanzhou730000P. R. China
- Key Laboratory of Petroleum ResourcesGansu ProvinceLanhzou730000China
| | - Ping Li
- Northwest Institute of Eco‐Environment ResourcesChinese Academy of SciencesLanzhou730000P. R. China
- Key Laboratory of Petroleum ResourcesGansu ProvinceLanhzou730000China
| | - Yun Wang
- Northwest Institute of Eco‐Environment ResourcesChinese Academy of SciencesLanzhou730000P. R. China
- Key Laboratory of Petroleum ResourcesGansu ProvinceLanhzou730000China
| | - Ziyi Liu
- State Key Laboratory of Fine ChemicalsLiaoning Key Laboratory for Catalytic Conversion of Carbon ResourcesSchool of Chemical EngineeringDalian University of TechnologyDalian116024P. R. China
- CAS Key Laboratory Nuclear Radiation & Nuclear Energy Technologyand Multidisciplinary Initiative CenterInstitute of High Energy PhysicsChinese Academy of SciencesBeijing100049P. R. China
| | - Dongqi Wang
- State Key Laboratory of Fine ChemicalsLiaoning Key Laboratory for Catalytic Conversion of Carbon ResourcesSchool of Chemical EngineeringDalian University of TechnologyDalian116024P. R. China
- CAS Key Laboratory Nuclear Radiation & Nuclear Energy Technologyand Multidisciplinary Initiative CenterInstitute of High Energy PhysicsChinese Academy of SciencesBeijing100049P. R. China
| | - Jianjun Liang
- Northwest Institute of Eco‐Environment ResourcesChinese Academy of SciencesLanzhou730000P. R. China
- Key Laboratory of Petroleum ResourcesGansu ProvinceLanhzou730000China
| | - Qiaohui Fan
- Northwest Institute of Eco‐Environment ResourcesChinese Academy of SciencesLanzhou730000P. R. China
- Key Laboratory of Petroleum ResourcesGansu ProvinceLanhzou730000China
| |
Collapse
|
9
|
Chen L, Gao Y, Lian J, Li L, Ding D, Dai Z. Efficient photoreduction removal of uranium(VI) by O, K co-doped g-C3N4 under air atmosphere without sacrificial agents. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
10
|
Photoreduction as an efficient approach for the rapid removal of U(VI) from the aqueous solution. J Radioanal Nucl Chem 2022. [DOI: 10.1007/s10967-022-08508-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
|
11
|
Chen T, Yu K, Dong C, Yuan X, Gong X, Lian J, Cao X, Li M, Zhou L, Hu B, He R, Zhu W, Wang X. Advanced photocatalysts for uranium extraction: Elaborate design and future perspectives. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214615] [Citation(s) in RCA: 40] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
12
|
Enhanced photo-reduction of chromium(VI) from aqueous solution by nanosheet hybrids of covalent organic framework and graphene-phase carbon nitride. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
13
|
Motamedi M, Yerushalmi L, Haghighat F, Chen Z. Recent developments in photocatalysis of industrial effluents ։ A review and example of phenolic compounds degradation. CHEMOSPHERE 2022; 296:133688. [PMID: 35074327 DOI: 10.1016/j.chemosphere.2022.133688] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 01/16/2022] [Accepted: 01/17/2022] [Indexed: 06/14/2023]
Abstract
Industrial expansion and increased water consumption have created water scarcity concerns. Meanwhile, conventional wastewater purification methods have failed to degrade recalcitrant pollutants efficiently. The present review paper discusses the recent advances and challenges in photocatalytic processes applied for industrial effluents treatment, with respect to phenolic compounds degradation. Key operational parameters including the catalyst loading, light intensity, initial pollutants concentration, pH, and type and concentrations of oxidants are evaluated and discussed. Compared to the other examined controlling parameters, pH has the highest effect on the photo-oxidation of contaminants by means of the photocatalyst ionization degree and surface charge. Furthermore, major phenolic compounds derived from industrial sources are comprehensively presented and the applicability of photocatalytic processes and the barriers in practical applications, including high energy demand, technical challenges, photocatalyst stability, and recyclability have been explored. The importance of energy consumption and operational costs for realistic large-scale processes are also discussed. Finally, research gaps in this area and the suggested direction for improving degradation efficiencies in industrial applications are presented. In the light of these premises, selective degradation processes in real water matrices such as untreated sewage are proposed.
Collapse
Affiliation(s)
- Mahsa Motamedi
- Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, H3G 1M8, Canada
| | - Laleh Yerushalmi
- Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, H3G 1M8, Canada
| | - Fariborz Haghighat
- Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, H3G 1M8, Canada
| | - Zhi Chen
- Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, H3G 1M8, Canada.
| |
Collapse
|
14
|
Liu J, Zhang Z, Dong Z, Zhu X, Gao D, Cheng Z, Cao X, Wang Y, Liu Y. Metal-free CQDs introduced g-C3N4 nanosheets with enhanced photocatalytic reduction performance of uranium (VI). J Radioanal Nucl Chem 2022. [DOI: 10.1007/s10967-022-08264-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
15
|
Synthesis of MoS2/P-g-C3N4 nanocomposites with enhanced visible-light photocatalytic activity for the removal of uranium (VI). J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2021.122305] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
16
|
Li S, Hu Y, Shen Z, Cai Y, Ji Z, Tan X, Liu Z, Zhao G, Hu S, Wang X. Rapid and selective uranium extraction from aqueous solution under visible light in the absence of solid photocatalyst. Sci China Chem 2021; 64:1323-1331. [DOI: doi.org/10.1007/s11426-021-9987-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 03/18/2021] [Indexed: 06/25/2023]
|
17
|
Li S, Hu Y, Shen Z, Cai Y, Ji Z, Tan X, Liu Z, Zhao G, Hu S, Wang X. Rapid and selective uranium extraction from aqueous solution under visible light in the absence of solid photocatalyst. Sci China Chem 2021. [DOI: 10.1007/s11426-021-9987-1] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|
18
|
Dong C, Qiao T, Huang Y, Yuan X, Lian J, Duan T, Zhu W, He R. Efficient Photocatalytic Extraction of Uranium over Ethylenediamine Capped Cadmium Sulfide Telluride Nanobelts. ACS APPLIED MATERIALS & INTERFACES 2021; 13:11968-11976. [PMID: 33683098 DOI: 10.1021/acsami.0c22800] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The photocatalysts for hexavalent uranium (U(VI)) reduction suffered from the low uranium uptake capacity and weak long-wavelength light absorption. Herein, we synthesized the CdSxTe1-x nanobelts capped by ethylenediamine (EDA), which provided amino groups as the adsorption sites. With the increase of the Te content, the amino groups on the CdSxTe1-x nanobelts decreased because of the variation of the electron density of Cd2+, whereas the light adsorption was enhanced due to the narrowed bandgap. In photocatalytic reduction of U(VI), the CdS0.95Te0.05-EDA nanobelts exhibited a considerable U(VI) removal ratio of 97.4% with a remarkable equilibrium U(VI) extraction amount on per weight unit of the adsorbent (qe) of 836 mg/g. The bandgap structure and Fourier transform infrared spectroscopy (FT-IR) spectra analysis revealed that the optimum photocatalytic activity of CdSxTe1-x nanobelts was achieved at a 5% of Te2- doping, which balanced the factors of amino groups and bandgap. This adsorption-photoreduction process offers an ultrahigh uranium extraction capacity over wide uranium concentrations.
Collapse
Affiliation(s)
- Changxue Dong
- State Key Laboratory of Environment-friendly Energy Materials, National Co-innovation Center for Nuclear Waste Disposal and Environmental Safety, Sichuan Institute of Military and Civilian Integration, Nuclear Waste and Environmental Safety Key Laboratory of Defense, School of Life Science and Engineering, Joint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Tiantao Qiao
- State Key Laboratory of Environment-friendly Energy Materials, National Co-innovation Center for Nuclear Waste Disposal and Environmental Safety, Sichuan Institute of Military and Civilian Integration, Nuclear Waste and Environmental Safety Key Laboratory of Defense, School of Life Science and Engineering, Joint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Yubin Huang
- State Key Laboratory of Environment-friendly Energy Materials, National Co-innovation Center for Nuclear Waste Disposal and Environmental Safety, Sichuan Institute of Military and Civilian Integration, Nuclear Waste and Environmental Safety Key Laboratory of Defense, School of Life Science and Engineering, Joint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Xin Yuan
- State Key Laboratory of Environment-friendly Energy Materials, National Co-innovation Center for Nuclear Waste Disposal and Environmental Safety, Sichuan Institute of Military and Civilian Integration, Nuclear Waste and Environmental Safety Key Laboratory of Defense, School of Life Science and Engineering, Joint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Jie Lian
- State Key Laboratory of Environment-friendly Energy Materials, National Co-innovation Center for Nuclear Waste Disposal and Environmental Safety, Sichuan Institute of Military and Civilian Integration, Nuclear Waste and Environmental Safety Key Laboratory of Defense, School of Life Science and Engineering, Joint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Tao Duan
- State Key Laboratory of Environment-friendly Energy Materials, National Co-innovation Center for Nuclear Waste Disposal and Environmental Safety, Sichuan Institute of Military and Civilian Integration, Nuclear Waste and Environmental Safety Key Laboratory of Defense, School of Life Science and Engineering, Joint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Wenkun Zhu
- State Key Laboratory of Environment-friendly Energy Materials, National Co-innovation Center for Nuclear Waste Disposal and Environmental Safety, Sichuan Institute of Military and Civilian Integration, Nuclear Waste and Environmental Safety Key Laboratory of Defense, School of Life Science and Engineering, Joint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Rong He
- State Key Laboratory of Environment-friendly Energy Materials, National Co-innovation Center for Nuclear Waste Disposal and Environmental Safety, Sichuan Institute of Military and Civilian Integration, Nuclear Waste and Environmental Safety Key Laboratory of Defense, School of Life Science and Engineering, Joint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology, Mianyang, 621010, China
| |
Collapse
|
19
|
Zhang W, Li L, Gao Y, Zhang D. Graphitic carbon nitride-based materials for photocatalytic reduction of U( vi). NEW J CHEM 2020. [DOI: 10.1039/d0nj04519e] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This work reports the photocatalytic reduction of U(vi) using g-C3N4-based materials and discusses the factors affecting the photocatalytic reduction of U(vi).
Collapse
Affiliation(s)
- Weizhuo Zhang
- Shaanxi Key Laboratory of Industrial Automation
- School of Mechanical Engineering
- Shaanxi University of Technology
- Hanzhong 723001
- China
| | - Le Li
- Shaanxi Key Laboratory of Industrial Automation
- School of Mechanical Engineering
- Shaanxi University of Technology
- Hanzhong 723001
- China
| | - Yanhong Gao
- Shaanxi Province Key Laboratory of Catalytic Foundation and Application
- School of Chemistry and Environment Science
- Shaanxi University of Technology
- Hanzhong 723001
- China
| | - Dan Zhang
- Shaanxi Province Key Laboratory of Catalytic Foundation and Application
- School of Chemistry and Environment Science
- Shaanxi University of Technology
- Hanzhong 723001
- China
| |
Collapse
|