1
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Yin Z, Chen H, Wang Q, Wang Z, Yu G, Tang B, Zhang M, Li K, Zhang Z, Luo Q, Hu T, Lv B. Construction of an interface interaction in a g-C 3N 4/CdS/NiS for photoreforming of plastic and clean hydrogen regeneration. J Colloid Interface Sci 2024; 675:218-225. [PMID: 38968638 DOI: 10.1016/j.jcis.2024.06.214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Revised: 06/23/2024] [Accepted: 06/26/2024] [Indexed: 07/07/2024]
Abstract
Converting plastics into organic matter by photoreforming is an emerging way to deal with plastic pollution and produce valuable organic matter. Water shortage can be alleviated by using seawater resources. To solve these problems, we synthesize a ternary heterostructure composite g-C3N4/CdS/NiS. Heterojunctions are formed between graphitized carbon nitride (g-C3N4), cadmium sulfide (CdS) and nickel sulfide (NiS), which effectively improve the problem of fast charge recombination of pure g-C3N4 and CdS. The results of the g-C3N4/CdS/NiS photocatalytic tests show that the hydrogen production rates in seawater and pure water for 5 h are 30.44 and 25.79 mmol/g/h, respectively. In stability test, the hydrogen production rate of the g-C3N4/CdS/NiS in seawater and pure water is similar. This suggests that seawater can replace pure water as a source of hydrogen. While H2 is generated, the lactate obtained by polylactic acid (PLA) hydrolysis is oxidized to form small organic compounds such as formate, acetate and pyruvate. Our study shows that g-C3N4/CdS/NiS can not only use seawater as a hydrogen source to produce H2, but also photoreformate plastics dissolved in seawater into valuable small organic molecules. This has a positive impact on the production and use of clean energy, as well as on plastic pollution and water scarcity.
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Affiliation(s)
- Zhe Yin
- Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming, 650500, China
| | - Huanyu Chen
- Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming, 650500, China
| | - Qiuyu Wang
- Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming, 650500, China
| | - Ziwen Wang
- Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming, 650500, China
| | - Guoping Yu
- Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming, 650500, China
| | - Binglin Tang
- Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming, 650500, China
| | - Man Zhang
- Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming, 650500, China
| | - Kangzheng Li
- Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming, 650500, China
| | - Zhichao Zhang
- Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming, 650500, China
| | - Qingcheng Luo
- Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming, 650500, China
| | - Tianding Hu
- Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming, 650500, China
| | - Bo Lv
- Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming, 650500, China.
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Singh RV, Pai MR, Banerjee AM, Shrivastava A, Kumar U, Sinha I, Dutta B, Hassan PA, Ningthoujam RS, Ghosh R, Nath S, Sharma RK, Jagannath, Bapat RD. Interfacial Engineering over Pt-Calcium Ferrite/2D Carbon Nitride Nanosheet p-n Heterojunctions for Superior Photocatalytic Properties. ACS OMEGA 2024; 9:40182-40203. [PMID: 39346866 PMCID: PMC11425653 DOI: 10.1021/acsomega.4c06353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/09/2024] [Revised: 08/03/2024] [Accepted: 08/08/2024] [Indexed: 10/01/2024]
Abstract
The present study discloses the fabrication of efficient p-n heterojunctions using n-type polymeric bulk carbon nitride (b-CN, E g = 2.7 eV) or exfoliated nanosheets of carbon nitride (NSCN, E g = 2.9 eV) with p-type spinel ferrite CaFe2O4 (CFO, E g = 1.9 eV) for photocatalytic hydrogen generation. A series of p-n combinations were fabricated and characterized by various techniques. The oxide-carbon nitride interactions, light absorption, band alignment at the interface, and water/H3O+ adsorption capability were elucidated over heterojunctions and correlated with the photocatalytic hydrogen yield. The main developments in the present study are as follows: (1) All heterojunctions were more active than pure phases. (2) The photocatalytic activity trend validated an increase in the lifetime of charge carriers from TRPL. Pt(1 wt %)-CFO(1 wt %)/NSCN (481.5 μmol/h/g under ultraviolet (UV)-visible-simulated light, 147.5 μmol/h/g under CFL illumination for 20 h, τavg = 10.33 ns) > Pt-NSCN > Pt-CFO/b-CN > CFO/NSCN > CFO/b-CN > NSCN > Pt/b-CN > mechanical mixture (MM) of 1 wt %CFO + NSCN-MM > 1 wt %CFO + b-CN-MM > CFO > b-CN (τavg = 4.5 ns). (3) Pt-CFO/NSCN was most active and exhibited 250 times enhanced photocatalytic activity as compared to parent bulk carbon nitride, 6.5 times more active than CFO/NSCN, and twice more active than Pt-NSCN. Thus, enhanced activity is attributed to the smooth channelizing of electrons across p-n junctions. (4) NSCN evidently offered improved characteristics as a support and photocatalyst over b-CN. The exfoliated NSCN occupied a superior few-layer morphology with 0.35 nm width as compared to parent b-CN. NSCN allowed 57% dispersion of 6 nm-sized CFO, while b-CN supported 14% dispersion of 7.8 nm-sized CFO particles, as revealed by small-angle X-ray scattering spectroscopy (SAXS). Sizes of 2-4 nm were observed for Pt nanoparticles in the 1 wt %Pt/1 wt % CFO/NSCN sample. A binding energy shift and an increase in the FWHM of X-ray photoelectron spectroscopy (XPS) core level peaks established charge transfer and enhanced band bending on p-n contact in Pt-CFO/NSCN. FsTAS revealed the decay of photogenerated electrons via trapping in shallow traps (τ1, τ2) and deep traps (τ3). Lifetimes τ1 (3.19 ps, 42%) and τ2 (187 ps, 31%) were higher in NSCN than those in b-CN (τ1 = 2.2 ps, 42%, τ2 = 30 ps, 31%), which verified that the recombination reaction rate was suppressed by 6 times in NSCN (k 2 = 0.53 × 1010 s-1) as compared to b-CN (k 2 = 3.33 × 1010 s-1). Deep traps lie below the H+/H2 reduction potential; thus, electrons in deep traps are not available for photocatalytic H2 generation. (5) The role of CFO in enhancing water adsorption capability was modeled by molecular dynamics. NSCN or b-CN both showed very poor interaction with water molecules; however, the CFO cluster adsorbed H3O+ ions very strongly through the electrostatic interaction between calcium and oxygen (of H3O+). Pt also showed a strong affinity for H2O but not for H3O+. Thus, both CFO and Pt facilitated NSCN to access water molecules, and CFO further sustained the adsorption of H3O+ molecules, crucial for the photocatalytic reduction of water molecules. (6) Band potentials of CFO and NSCN aligned suitably at the interface of CFO/NSCN, resulting in a type-II band structure. Valence band offset (VBO, ΔE VB) and conduction band offset (CBO, ΔE CB) were calculated at the interface, resulting in an effective band gap of 1.41 eV (2.9 - ΔE VB = 1.9 - ΔE CB), much lower than parent compounds. The interfacial band structure was efficient in driving photogenerated electrons from the CB of CFO to the CB of NSCN and holes from the VB of NSCN to the VB of CFO, thus successfully separating charge carriers, as supported by the increased lifetime of charge carriers and favorable photocatalytic H2 yield.
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Affiliation(s)
- Rajendra V Singh
- Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India
- Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400085, India
| | - Mrinal R Pai
- Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India
- Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400085, India
| | - Atindra M Banerjee
- Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India
- Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400085, India
| | - Anshu Shrivastava
- Department of Chemistry, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, India
| | - Uttam Kumar
- Department of Chemistry, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, India
| | - Indrajit Sinha
- Department of Chemistry, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, India
| | - Bijaideep Dutta
- Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - Puthusserickal A Hassan
- Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India
- Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400085, India
| | - Raghumani S Ningthoujam
- Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India
- Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400085, India
| | - Rajib Ghosh
- Radiation and Photochemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - Sukhendu Nath
- Radiation and Photochemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India
- Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400085, India
| | - Rajendra K Sharma
- Technical Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - Jagannath
- Technical Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - Rudheer D Bapat
- Department of Condensed Matter Physics and Materials Science, Tata Institute of Fundamental Research, Colaba, Mumbai 400005, India
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Zhang P, Li N, Li L, Yu Y, Tuerhong R, Su X, Zhang B, Han L, Han Y. g-C 3N 4-Based Photocatalytic Materials for Converting CO 2 Into Energy: A Review. Chemphyschem 2024; 25:e202400075. [PMID: 38822681 DOI: 10.1002/cphc.202400075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 04/23/2024] [Accepted: 05/22/2024] [Indexed: 06/03/2024]
Abstract
Environmental pollution management and renewable energy development are humanity's biggest issues in the 21st century. The rise in atmospheric CO2, which has surpassed 400 parts per million, has stimulated research on CO2 reduction and conversion methods. Presently, photocatalytic conversion of CO2 to valuable hydrocarbons enables the transformation of solar energy into chemical energy and offers a novel avenue for energy conversion while regulating the greenhouse effect. This is an ideal strategy for simultaneously addressing environmental issues and the energy crisis. Photocatalysts are essential to photocatalytic processes. Photocatalyst is the core of photocatalytic technology, and graphite carbon nitride (g-C3N4) has attracted much attention because of its nonmetallic characteristics, and it has the characteristics of low cost, tunable electronic structure, easy manufacture and strong reducibility. However, its activity is not only affected by external reaction conditions, but also by the band gap structure, physical and chemical stability, surface morphology and specific surface area of the photocatalyst it. In this paper, the application progress of g-C3N4-based photocatalytic materials in CO2 reduction is reviewed, and the modification strategies of g-C3N4-based catalysts to obtain better catalytic efficiency and selectivity in CO2 photocatalytic reduction are summarized, and the future development of this material is prospected.
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Affiliation(s)
- Ping Zhang
- Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission, Gansu Provincial Biomass Function Composites Engineering Research Center, Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in University of Gansu Province, College of Chemical Engineering, Northwest Minzu University, Lanzhou, 730030, P.R.China
| | - Ning Li
- Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission, Gansu Provincial Biomass Function Composites Engineering Research Center, Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in University of Gansu Province, College of Chemical Engineering, Northwest Minzu University, Lanzhou, 730030, P.R.China
| | - Longjian Li
- Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission, Gansu Provincial Biomass Function Composites Engineering Research Center, Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in University of Gansu Province, College of Chemical Engineering, Northwest Minzu University, Lanzhou, 730030, P.R.China
| | - Yongchong Yu
- Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission, Gansu Provincial Biomass Function Composites Engineering Research Center, Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in University of Gansu Province, College of Chemical Engineering, Northwest Minzu University, Lanzhou, 730030, P.R.China
| | - Reyila Tuerhong
- Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission, Gansu Provincial Biomass Function Composites Engineering Research Center, Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in University of Gansu Province, College of Chemical Engineering, Northwest Minzu University, Lanzhou, 730030, P.R.China
| | - Xiaoping Su
- Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission, Gansu Provincial Biomass Function Composites Engineering Research Center, Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in University of Gansu Province, College of Chemical Engineering, Northwest Minzu University, Lanzhou, 730030, P.R.China
| | - Bin Zhang
- Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission, Gansu Provincial Biomass Function Composites Engineering Research Center, Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in University of Gansu Province, College of Chemical Engineering, Northwest Minzu University, Lanzhou, 730030, P.R.China
| | - Lijuan Han
- Gansu Natural Energy Institute, Gansu Academy of Science, Lanzhou, 730046, P.R.China
| | - Yuqi Han
- College of Chemistry and Chemical Engineering, He Xi University, No.846 North Circle Road, Zhangye, 734000, P.R.China
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4
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Li S, Hu J, Chen F, Chu S, Tang R, Wang S, An Q, Huang H. Surface-Integrating Oxygen Vacancy and Cu xO Nanodots Enabling Synergistic Electric Field and Dual Catalytic Sites Boosting CO 2 Photoreduction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2402882. [PMID: 38773890 DOI: 10.1002/smll.202402882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 05/05/2024] [Indexed: 05/24/2024]
Abstract
High carrier separation efficiency and rapid surface catalytic reaction are crucial for enhancing catalytic CO2 photoreduction reaction. Herein, integrated surface decoration strategy with oxygen vacancies (Ov) and anchoring CuxO (1 < x < 2) nanodots below 10 nm is realized on Bi2MoO6 for promoting CO2 photoreduction performance. The charge interaction between Ov and anchored CuxO enables the formation of enhanced internal electric field, which provides a strong driving force for accelerating the separation of photocharge carriers on the surface of Bi2MoO6 (ηsurf ≈71%). They can also cooperatively reduce the surface work function of Bi2MoO6, facilitating the migration of carrier to the surface. Meanwhile, surface-integrated Ov and CuxO nanodots allowing dual catalytic sites strengthens the adsorption and activation CO2 into *CO2 over Bi2MoO6, considerably boosting the progression of CO2 conversion process. In the absence of co-catalyst or sacrificial agent, Bi2MoO6 with Ov and CuxO nanodots achieves a photocatalytic CO generation rate of 12.75 µmol g-1 h-1, a remarkable increase of over ≈15 times that of the original counterpart. This work provides a new idea for governing charge movement behaviors and catalytic reaction thermodynamics on the basis of synergistic improvement of electric field and active sites by coupling of the internal defects and external species.
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Affiliation(s)
- Shuguan Li
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, China
| | - Jingcong Hu
- Beijing Key Lab of Microstructure and Property of Advanced Materials, College of Materials Science and Engineering, Beijing University of Technology, Beijing, 100124, China
| | - Fang Chen
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, China
| | - Shengqi Chu
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
| | - Ruofei Tang
- Research Center for Environmental and Energy Catalysis, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 611731, China
| | - Shengyao Wang
- College of Science, Huazhong Agricultural University, Wuhan, 430070, China
| | - Qi An
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, China
| | - Hongwei Huang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, China
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Jahanshahi R, Moghadam HH, Sobhani S, Sansano JM. ZnCo 2O 4@g-C 3N 4@Cu as a new and highly efficient heterogeneous photocatalyst for visible light-induced cyanation and Mizoroki-Heck cross-coupling reactions. RSC Adv 2024; 14:26424-26436. [PMID: 39175692 PMCID: PMC11339774 DOI: 10.1039/d4ra04827j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2024] [Accepted: 08/14/2024] [Indexed: 08/24/2024] Open
Abstract
Conducting C-C cross-coupling reactions under convenient and mild conditions remains extremely challenging in traditional organic synthesis. In this study, ZnCo2O4@g-C3N4@Cu exhibited extraordinary photocatalytic performance as a new visible light harvesting heterogeneous copper-based photocatalyst in cyanation and Mizoroki-Heck visible-light-driven cross-coupling reactions at room temperature and in air. Surprisingly, by this method, the cyanation and Mizoroki-Heck cross-coupling reactions of various iodo-, bromo- and also the challenging chloroarenes with respectively K4[Fe(CN)6]·3H2O and olefins produced promising results in a sustainable and mild media. The significant photocatalytic performance of ZnCo2O4@g-C3N4@Cu arises from the synergistic optical properties of ZnCo2O4, g-C3N4, and Cu. These components can enhance the charge carrier generation and considerably reduce the recombination rate of photogenerated electron-hole pairs. No need to use heat or additives, applying an economical and benign light source, utilizing an environmentally compatible solvent, facile and low-cost photocatalytic approach, aerial conditions, high stability and convenient recyclability of the photocatalyst are the remarkable highlights of this methodology. Moreover, this platform exhibited the ability to be performed on a large scale, which is considered an important issue in industrial and pharmaceutical use. It is worth noting that this is the first time that a heterogeneous copper-based photocatalyst has been employed in visible light-promoted cyanation reactions of aryl halides.
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Affiliation(s)
- Roya Jahanshahi
- Department of Chemistry, College of Sciences, University of Birjand Birjand Iran
| | | | - Sara Sobhani
- Department of Chemistry, College of Sciences, Shiraz University Shiraz 71454 Iran
- Department of Chemistry, College of Sciences, University of Birjand Birjand Iran
| | - José Miguel Sansano
- Departamento de Química Orgánica, Facultad de Ciencias, Centro de Innovación en Química Avanzada (ORFEO-CINQA), Instituto de Síntesis Orgánica (ISO), Universidad de Alicante Apdo. 99 03080-Alicante Spain
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Chen G, Zhou Z, Li B, Lin X, Yang C, Fang Y, Lin W, Hou Y, Zhang G, Wang S. S-scheme heterojunction of crystalline carbon nitride nanosheets and ultrafine WO 3 nanoparticles for photocatalytic CO 2 reduction. J Environ Sci (China) 2024; 140:103-112. [PMID: 38331492 DOI: 10.1016/j.jes.2023.05.028] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 05/19/2023] [Accepted: 05/19/2023] [Indexed: 02/10/2024]
Abstract
Highly crystalline carbon nitride polymers have shown great opportunities in overall water photosplitting; however, their mission in light-driven CO2 conversion remains to be explored. In this work, crystalline carbon nitride (CCN) nanosheets of poly triazine imide (PTI) embedded with melon domains are fabricated by KCl/LiCl-mediated polycondensation of dicyandiamide, the surface of which is subsequently deposited with ultrafine WO3 nanoparticles to construct the CCN/WO3 heterostructure with a S-scheme interface. Systematic characterizations have been conducted to reveal the compositions and structures of the S-scheme CCN/WO3 hybrid, featuring strengthened optical capture, enhanced CO2 adsorption and activation, attractive textural properties, as well as spatial separation and directed movement of light-triggered charge carriers. Under mild conditions, the CCN/WO3 catalyst with optimized composition displays a high photocatalytic activity for reducing CO2 to CO in a rate of 23.0 µmol/hr (i.e., 2300 µmol/(hr·g)), which is about 7-fold that of pristine CCN, along with a high CO selectivity of 90.6% against H2 formation. Moreover, it also manifests high stability and fine reusability for the CO2 conversion reaction. The CO2 adsorption and conversion processes on the catalyst are monitored by in-situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS), identifying the crucial intermediates of CO2*-, COOH* and CO*, which integrated with the results of performance evaluation proposes the possible CO2 reduction mechanism.
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Affiliation(s)
- Gongjie Chen
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fujian 350116, China
| | - Ziruo Zhou
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fujian 350116, China
| | - Bifang Li
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fujian 350116, China
| | - Xiahui Lin
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fujian 350116, China.
| | - Can Yang
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fujian 350116, China.
| | - Yuanxing Fang
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fujian 350116, China
| | - Wei Lin
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fujian 350116, China
| | - Yidong Hou
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fujian 350116, China
| | - Guigang Zhang
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fujian 350116, China
| | - Sibo Wang
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fujian 350116, China.
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Chandrapal RR, Bharathi K, Bakiyaraj G, Bharathkumar S, Priyajanani Y, Manivannan S, Archana J, Navaneethan M. Harnessing ZnCr 2O 4/g-C 3N 4 nanosheet heterojunction for enhanced photocatalytic degradation of rhodamine B and ciprofloxacin. CHEMOSPHERE 2024; 350:141094. [PMID: 38171401 DOI: 10.1016/j.chemosphere.2023.141094] [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: 09/15/2023] [Revised: 11/27/2023] [Accepted: 12/30/2023] [Indexed: 01/05/2024]
Abstract
Utilizing semiconductors for photocatalytic processes in water bodies as an approach to environmental remediation has gained considerable attention. Theoretical band position calculations revealed a type-II step-scheme charge flow mechanism for ZnCr2O4/g-C3N4 (ZCr/gCN), emphasizing effective heterojunction formation due to synergies between the materials. A composite of agglomerated nanoparticle ZnCr2O4 (Zinc chromium oxide - ZCr)/g-C3N4 (graphitic carbon nitride - gCN) nanosheets was synthesized using the ultrasonication and leveraging the heterojunction to enhance degradation efficiency and active sites participation. The synthesized sample was characterized by XRD, XPS, FTIR, BET, HRSEM, EDX, HRTEM, EIS PL, and UV-visible spectroscopy. XRD analysis confirmed the successful formation of pure ZnCr2O4, g-C3N4 (gCN), and their composite without any secondary phases. Optical investigations demonstrated a red shift (444-470 nm) in UV-visible spectra as ZnCr2O4 content increased. Morphological assessment via HRSEM unveiled agglomerated nanoparticle and nanosheet structures. FTIR analysis indicated the presence of gCN with the tri-s-triazine breathing mode at 807 cm-1, and the identification of octahedral Zn-O (598.11 cm-1) and tetrahedral Cr-O (447.01 cm-1) metal bonds within the spinel structure of ZnCr2O4. A Surface area of 134.162 m2/g was noticed with a microporous structure of pore radius 1.484 nm. Notably, the 15% ZCr/gCN composite achieved a remarkable 93.94 % (Rhodamine B-RhB) and 74.36 % (Ciprofloxacin - CIP) within 100 and 120 min, surpassing the performance of pure gCN. Improved degradation was attributed to higher charge separation (photo-excited electrons and holes), reducing charge recombination, as supported by photoluminescence and photoelectrochemical analyses. The presence of active species like superoxide during degradation was confirmed through a scavenger test. The stability analysis confirms the sample's stable nature (without secondary phase formation) after degradation. This work underscores the potential of ZnCr2O4 based metal-free compounds intended for effective environmental remediation.
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Affiliation(s)
- R Roshan Chandrapal
- Functional Materials and Energy Devices Laboratory, Department of Physics and Nanotechnology, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, 603203, Tamil Nadu, India
| | - K Bharathi
- Functional Materials and Energy Devices Laboratory, Department of Physics and Nanotechnology, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, 603203, Tamil Nadu, India
| | - G Bakiyaraj
- Functional Materials and Energy Devices Laboratory, Department of Physics and Nanotechnology, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, 603203, Tamil Nadu, India.
| | - S Bharathkumar
- Department of Engineering Physics, College of Engineering, Koneru Lakshmaiah Education Foundation Vaddeswaram, Andhra Pradesh, India
| | - Y Priyajanani
- Carbon Nanomaterials Laboratory, Department of Physics, National Institute of Technology, Tiruchirappalli, India
| | - S Manivannan
- Carbon Nanomaterials Laboratory, Department of Physics, National Institute of Technology, Tiruchirappalli, India
| | - J Archana
- Functional Materials and Energy Devices Laboratory, Department of Physics and Nanotechnology, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, 603203, Tamil Nadu, India
| | - M Navaneethan
- Functional Materials and Energy Devices Laboratory, Department of Physics and Nanotechnology, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, 603203, Tamil Nadu, India; Nanotechnology Research Center, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Chennai, 603203, Tamil Nadu, India
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8
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Yu LQ, Guo RT, Guo SH, Yan JS, Liu H, Pan WG. Research progress on photocatalytic reduction of CO 2 based on ferroelectric materials. NANOSCALE 2024; 16:1058-1079. [PMID: 38126461 DOI: 10.1039/d3nr05018a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
Transforming CO2 into renewable fuels or valuable carbon compounds could be a practical means to tackle the issues of global warming and energy crisis. Photocatalytic CO2 reduction is more energy-efficient and environmentally friendly, and offers a broader range of potential applications than other CO2 conversion techniques. Ferroelectric materials, which belong to a class of materials with switchable polarization, are attractive candidates as catalysts due to their distinctive and substantial impact on surface physical and chemical characteristics. This review provides a concise overview of the fundamental principles underlying photocatalysis and the mechanism involved in CO2 reduction. Additionally, the composition and properties of ferroelectric materials are introduced. This review expands on the research progress in using ferroelectric materials for photocatalytic reduction of CO2 from three perspectives: directly as a catalyst, by modification, and construction of heterojunctions. Finally, the future potential of ferroelectric materials for photocatalytic CO2 reduction is presented. This review may be a valuable guide for creating reasonable and more effective photocatalysts based on ferroelectric materials.
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Affiliation(s)
- Ling-Qi Yu
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, People's Republic of China.
| | - Rui-Tang Guo
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, People's Republic of China.
- Shanghai Non-Carbon Energy Conversion and Utilization Institute, Shanghai 200090, People's Republic of China
| | - Sheng-Hui Guo
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, People's Republic of China.
| | - Ji-Song Yan
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, People's Republic of China.
| | - Hao Liu
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, People's Republic of China.
| | - Wei-Guo Pan
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, People's Republic of China.
- Shanghai Non-Carbon Energy Conversion and Utilization Institute, Shanghai 200090, People's Republic of China
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9
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Zhang L, Su P, Wang Y, Djellabi R, Zhao J. Synergistic photogeneration of reactive oxygen species by Fe species self-deposited on resorcinol-formaldehyde towards the degradation of phenols under visible light. CHEMOSPHERE 2024; 347:140620. [PMID: 37977532 DOI: 10.1016/j.chemosphere.2023.140620] [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: 07/20/2023] [Revised: 10/11/2023] [Accepted: 11/02/2023] [Indexed: 11/19/2023]
Abstract
In this study, a heterogeneous photo-Fenton catalyst of Fe species/resorcinol-formaldehyde (Fe/RF) was synthesized in the degradation process of phenols under visible light in a homogeneous photo-Fenton system. The in situ generated H2O2 by bare RF in the medium and the follow-added Fe2+ can construct homogeneous photo-Fenton system, and Fe/RF heterogeneous photo-Fenton catalyst was formed after the reaction through Fe species self-deposition. Due to the addition of Fe2+, more hydroxyl radical (·OH) generated in the homogeneous Fenton system, which lead to the higher degradation efficiency of phenols that achieved 90.5 % with 150 min. Fe/RF was subsequently formed and more C=O functional group in the structure appeared, which was beneficial to the production of H2O2. The above-mentioned results can be proved by the involved calculation and experimental results. Fe species, including Fe2+ and Fe3+, were beneficial to the conversion of reactive oxygen species (ROSs), and further improved the degradation efficiency of Phenols. Since the existence of photo-generated electrons, Fe2+ concentration in the solution can maintain a stable level. Interestingly, the degradation efficiency of Phenols was higher when Fe3+ was used instead of Fe2+ as the additive, which may be caused by the promotive effect of Fe3+ on singlet oxygen (1O2) generation. In addition, the degradation efficiency of Phenols under alkaline conditions was higher than that under acid conditions, which broke the limit of traditional Fenton process that works mostly in acidic medium. This study shows promising results in terms of synergistic photocatalytic/photo-Fenton processes for the degradation of organic pollutants in water.
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Affiliation(s)
- Laiqi Zhang
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300401, China
| | - Peidong Su
- School of Chemical and Environmental Engineering, China University of Mining & Technology, Beijing, 100091, China
| | - Yan Wang
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China.
| | - Ridha Djellabi
- Department of Chemical Engineering, Universitat Rovira i Virgili, 43007, Tarragona, Spain
| | - Jianling Zhao
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300401, China
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10
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Dharmarajan NP, Vidyasagar D, Yang JH, Talapaneni SN, Lee J, Ramadass K, Singh G, Fawaz M, Kumar P, Vinu A. Bio-Inspired Supramolecular Self-Assembled Carbon Nitride Nanostructures for Photocatalytic Water Splitting. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2306895. [PMID: 37699553 DOI: 10.1002/adma.202306895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 09/04/2023] [Indexed: 09/14/2023]
Abstract
Fast production of hydrogen and oxygen in large amounts at an economic rate is the need of the hour to cater to the needs of the most awaited hydrogen energy, a futuristic renewable energy solution. Production of hydrogen through simple water splitting via visible light photocatalytic approach using sunlight is considered as one of the most promising and sustainable approaches for generating clean fuels. For this purpose, a variety of catalytic techniques and novel catalysts have been investigated. Among these catalysts, carbon nitride is presently deemed as one of the best candidates for the visible light photocatalysis due to its unique molecular structure and adequate visible-range bandgap. Its bandgap can be further engineered by structural and morphological manipulation or by doping/hybridization. Among numerous synthetic approaches for carbon nitrides, supramolecular self-assembly is one of the recently developed elegant bottom-up strategies as it is bio-inspired and provides a facile and eco-friendly route to synthesize high surface area carbon nitride with superior morphological features and other semiconducting and catalytic properties. The current review article broadly covers supramolecular self-assembly synthesis of carbon nitride nanostructures and their photocatalytic water-splitting applications and provides a comprehensive outlook on future directions.
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Affiliation(s)
- Nithinraj Panangattu Dharmarajan
- Global Innovative Centre for Advanced Nanomaterials, College of Engineering, Science and Environment, The University of Newcastle, Newcastle, NSW, 2308, Australia
| | - Devthade Vidyasagar
- Material Science & Engineering Department, Kyungpook National University, Daegu, 41566, South Korea
| | - Jae-Hun Yang
- Global Innovative Centre for Advanced Nanomaterials, College of Engineering, Science and Environment, The University of Newcastle, Newcastle, NSW, 2308, Australia
| | | | - Jangmee Lee
- Global Innovative Centre for Advanced Nanomaterials, College of Engineering, Science and Environment, The University of Newcastle, Newcastle, NSW, 2308, Australia
| | - Kavitha Ramadass
- Global Innovative Centre for Advanced Nanomaterials, College of Engineering, Science and Environment, The University of Newcastle, Newcastle, NSW, 2308, Australia
| | - Gurwinder Singh
- Global Innovative Centre for Advanced Nanomaterials, College of Engineering, Science and Environment, The University of Newcastle, Newcastle, NSW, 2308, Australia
| | - Mohammed Fawaz
- Global Innovative Centre for Advanced Nanomaterials, College of Engineering, Science and Environment, The University of Newcastle, Newcastle, NSW, 2308, Australia
| | - Prashant Kumar
- Global Innovative Centre for Advanced Nanomaterials, College of Engineering, Science and Environment, The University of Newcastle, Newcastle, NSW, 2308, Australia
| | - Ajayan Vinu
- Global Innovative Centre for Advanced Nanomaterials, College of Engineering, Science and Environment, The University of Newcastle, Newcastle, NSW, 2308, Australia
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11
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Nabeel MI, Hussain D, Ahmad N, Najam-Ul-Haq M, Musharraf SG. Recent advancements in the fabrication and photocatalytic applications of graphitic carbon nitride-tungsten oxide nanocomposites. NANOSCALE ADVANCES 2023; 5:5214-5255. [PMID: 37767045 PMCID: PMC10521255 DOI: 10.1039/d3na00159h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 08/18/2023] [Indexed: 09/29/2023]
Abstract
The present review focuses on the widely used graphitic carbon nitride (g-C3N4)-tungsten oxide (WO3) nanocomposite in photocatalytic applications. These catalysts are widely employed due to their easy preparation, high physicochemical stability, nontoxicity, electron-rich properties, electronic band structure, chemical stability, low cost, earth-abundance, high surface area, and strong absorption capacity in the visible range. These sustainable properties make them predominantly attractive and unique from other photocatalysts. In addition, graphitic carbon nitride (g-C3N4) is synthesized from nitrogen-rich precursors; therefore, it is stable in strong acid solutions and has good thermal stability up to 600 °C. This review covers the historical background, crystalline phases, density-functional theory (DFT) study, synthesis method, 0-D, 1-D, 2-D, and 3-D materials, oxides/transition/nontransition metal-doped, characterization, and photocatalytic applications of WO3/g-C3N4. Enhancing the catalytic performance strategies such as composite formation, element-doping, heterojunction construction, and nanostructure design are also summarized. Finally, the future perspectives and challenges for WO3/g-C3N4 composite materials are discussed to motivate young researchers and scientists interested in developing environment-friendly and efficient catalysts.
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Affiliation(s)
- Muhammad Ikram Nabeel
- HEJ Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi Karachi-75270 Pakistan
| | - Dilshad Hussain
- HEJ Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi Karachi-75270 Pakistan
| | - Naseer Ahmad
- HEJ Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi Karachi-75270 Pakistan
| | | | - Syed Ghulam Musharraf
- HEJ Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi Karachi-75270 Pakistan
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12
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Parasuraman B, Kandasamy B, Murugan I, Alsalhi MS, Asemi N, Thangavelu P, Perumal S. Designing the heterostructured FeWO 4/FeS 2 nanocomposites for an enhanced photocatalytic organic dye degradation. CHEMOSPHERE 2023; 334:138979. [PMID: 37236279 DOI: 10.1016/j.chemosphere.2023.138979] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 05/04/2023] [Accepted: 05/16/2023] [Indexed: 05/28/2023]
Abstract
The present study, reports a facile approach for the synthesis of FeWO4/FeS2 nanocomposites were demonstrated through hydrothermal method. The surface morphology, crystalline structure, chemical composition, optical properties of the prepared samples was analysed by different various technique. The result observed analysis indicates that, the formation of heterojunction by 2:1 wt.% of FeWO4/FeS2 nanohybrid has the lowest recombination rate of electron-hole pairs and the least electron transfer resistance. Due to its the broad absorption spectral range and preferable energy band gap, the (2:1) FeWO4/FeS2 nanohybrid photocatalyst exhibits an excellent ability to remove MB dye when exposed to UV-Vis. Light irradiation. Its photocatalytic activity of (2:1) FeWO4/FeS2 nanohybrid is higher than other as prepared samples due to its synergistic effects, enhanced light absorption and high charge carrier separation. Radical trapping experimental result implies that the photo-generated free electrons and hydroxyl radials are essential to degrade the MB dye. Furthermore, a possible future mechanism for FeWO4/FeS2 nanocomposites photocatalytic activity was discussed. Moreover, the recyclability analysis demonstrated that the FeWO4/FeS2 nanocomposites can be recycled multiple times. The enhanced photocatalytic activity of 2:1 FeWO4/FeS2 nanocomposites is promising for the further application of visible light driven photocatalyst in wastewater treatment.
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Affiliation(s)
- Balaji Parasuraman
- Smart Materials Laboratory, Department of Physics, Periyar University, Salem, Tamil Nadu, 636011, India
| | | | - Indrani Murugan
- Department of Chemistry, Sri GVG Visalakshi College for Women, Udumalpet, Tamil Nadu, 642128, India
| | - Mohamad S Alsalhi
- Department of Physics Astronomy, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Nassar Asemi
- Department of Physics Astronomy, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Pazhanivel Thangavelu
- Smart Materials Laboratory, Department of Physics, Periyar University, Salem, Tamil Nadu, 636011, India.
| | - Sakthivel Perumal
- Gwangju Institute of Science and Technology, Gwangju, Republic of Korea
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13
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Wei LW, Liu SH, Wang HP. Visible-Light Photocatalytic CO 2-to-CO and H 2O-to-H 2O 2 by g-C 3N 4/Cu 2O-Pd S-Scheme Heterojunctions. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37192387 DOI: 10.1021/acsami.3c02383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Visible-light photocatalytic conversion of CO2-to-fuels for green electricity is sustainably attractive for alleviating carbon emissions. Photocatalytic CO2-to-CO frequently suffered from relatively low yields, mainly due to ineffective charge transfer rates. A new approach for photocatalytic CO2-to-CO enhanced with effective H+ from H2O-to-H2O2 through the water oxidation reaction (WOR) has been studied in the present work. Here, the nano palladium (9 wt %), serving as a cocatalyst, dispersed on the g-C3N4/Cu2O heterojunctions (i.e., g-C3N4/Cu2O-Pd) has been prepared to facilitate charge separation for the two-electron reduction of CO2 to CO. Experimentally, the g-C3N4/Cu2O-Pd heterojunctions have a higher photocatalytic H2O-to-H2O2 yield than the g-C3N4/Cu2O heterojunction by 5.3 times. The photocatalytic WOR provides sufficient electrons (e-) and H+ (2H2O → H2O2 + 2H+) for CO2-to-CO (CO2(aq) + 2H+ + 2e- → CO(g) + H2O(l)). Relatively high photocatalytic yields of H2O2 (34.0 μmol/mg) and CO (14.6 μmol/mg) affected by the heterojunctions can be achieved. Also, the heterojunctions have a high photostability with a photocatalytic generated CO/H2 ratio of 1.75 approximately. This visible-light photocatalytic CO2-to-CO and H2O-to-H2O2 by the new g-C3N4/Cu2O-Pd S-scheme heterojunctions demonstrates the feasibility of the zero carbon emission approach with additional green oxidant (H2O2) generation.
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14
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Patil AR, Dongale TD, Namade LD, Mohite SV, Kim Y, Sutar SS, Kamat RK, Rajpure KY. Sprayed FeWO4 thin film-based memristive device with negative differential resistance effect for non-volatile memory and synaptic learning applications. J Colloid Interface Sci 2023; 642:540-553. [PMID: 37028161 DOI: 10.1016/j.jcis.2023.03.189] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 03/21/2023] [Accepted: 03/29/2023] [Indexed: 04/04/2023]
Abstract
Resistive switching (RS) memories have attracted great attention as promising solutions to next-generation non-volatile memories and computing technologies because of their simple device configuration, high on/off ratio, low power consumption, fast switching, long retention, and significant cyclic stability. In this work, uniform and adherent iron tungstate (FeWO4) thin films were synthesized by the spray pyrolysis method with various precursor solution volumes, and these were tested as a switching layer for the fabrication of Ag/FWO/FTO memristive devices. The detailed structural investigation was done through various analytical and physio-chemical characterizations viz. X-ray diffraction (XRD) and its Rietveld refinement, Raman spectroscopy, and X-ray photoelectron spectroscopy (XPS) techniques. The results reveal the pure and single-phase FeWO4 compound thin film formation. Surface morphological study shows the spherical particle formation having a diameter in the range of 20 to 40 nm. The RS characteristics of the Ag/FWO/FTO memristive device demonstrate non-volatile memory characteristics with significant endurance and retention properties. Interestingly, the memory devices show stable and reproducible negative differential resistance (NDR) effects. The in-depth statistical analysis suggests the good operational uniformity of the device. Moreover, the switching voltages of the Ag/FWO/FTO memristive device were modeled using the time series analysis technique by utilizing Holt's Winter Exponential Smoothing (HWES) approach. Additionally, the device mimics bio-synaptic properties such as potentiation/depression, excitatory post-synaptic current (EPSC), and spike-timing-dependent plasticity (STDP) learning rules. For the present device, the space-charge-limited current (SCLC) and trap-controlled-SCLC effects dominated during positive and negative bias I-V characteristics, respectively. The RS mechanism dominated in the low resistance state (LRS), and the high resistance state (HRS) was explained based on the formation and rupture of conductive filament composed of Ag ions and oxygen vacancies. This work demonstrates the RS in the metal tungstate-based memristive devices and demonstrates a low-cost approach for fabricating memristive devices.
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Affiliation(s)
- Amitkumar R Patil
- Electrochemical Materials Laboratory, Department of Physics, Shivaji University, Kolhapur 416004, India
| | - Tukaram D Dongale
- Computational Electronics and Nanoscience Research Laboratory, School of Nanoscience and Biotechnology, Shivaji University, Kolhapur 416004, India
| | - Lahu D Namade
- Electrochemical Materials Laboratory, Department of Physics, Shivaji University, Kolhapur 416004, India
| | - Santosh V Mohite
- Department of Applied Chemistry, Konkuk University, Chungju 27478, Republic of Korea
| | - Yeonho Kim
- Department of Applied Chemistry, Konkuk University, Chungju 27478, Republic of Korea
| | - Santosh S Sutar
- Yashwantrao Chavan School of Rural Development, Shivaji University, Kolhapur 416004, India
| | - Rajanish K Kamat
- Department of Electronics, Shivaji University, Kolhapur 416004, India; Dr. Homi Bhabha State University, 15, Madam Cama Road, Mumbai 400032, India
| | - Keshav Y Rajpure
- Electrochemical Materials Laboratory, Department of Physics, Shivaji University, Kolhapur 416004, India.
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15
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Li S, Chen F, Chu S, Zhang Z, Huang J, Wang S, Feng Y, Wang C, Huang H. Synergy-Compensation Effect of Ferroelectric Polarization and Cationic Vacancy Collaboratively Promoting CO 2 Photoreduction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2203559. [PMID: 36417582 DOI: 10.1002/smll.202203559] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 11/09/2022] [Indexed: 06/16/2023]
Abstract
Photocatalytic CO2 reduction is severely limited by the rapid recombination of photo-generated charges and insufficient reactive sites. Creating electric field and defects are effective strategies to inhibit charge recombination and enrich catalytic sites, respectively. Herein, a coupled strategy of ferroelectric poling and cationic vacancy is developed to achieve high-performance CO2 photoreduction on ferroelectric Bi2 MoO6 , and their interesting synergy-compensation relationship is first disclosed. Corona poling increases the remnant polarization of Bi2 MoO6 to enhance the intrinsic electric field for promoting charge separation, while it decreases the CO2 adsorption. The introduced Mo vacancy (VMo ) facilitates the adsorption and activation of CO2 , and surface charge separation by creating local electric field. Unfortunately, VMo largely reduces the remnant polarization intensity. Coupling poling and VMo not only integrate their advantages, resulting in an approximately sevenfold increased surface charge transfer efficiency, but also compensate for their shortcomings, for example, VMo largely alleviates the negative effects of ferroelectric poling on CO2 adsorption. In the absence of co-catalyst or sacrificial agent, the poled Bi2 MoO6 with VMo exhibits a superior CO2 -to-CO evolution rate of 19.75 µmol g-1 h-1 , ≈8.4 times higher than the Bi2 MoO6 nanosheets. This work provides new ideas for exploring the role of polarization and defects in photocatalysis.
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Affiliation(s)
- Shuguan Li
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, P. R. China
| | - Fang Chen
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, P. R. China
| | - Shengqi Chu
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Zeyu Zhang
- Beijing Key Laboratory of Microstructure and Properties of Solids, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing, 100124, P. R. China
| | - Jindi Huang
- Engineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang, 473061, P. R. China
| | - Shengyao Wang
- College of Science, Huazhong Agricultural University, Wuhan, 430070, P. R. China
| | - Yibo Feng
- Beijing Key Laboratory of Microstructure and Properties of Solids, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing, 100124, P. R. China
| | - Cong Wang
- Beijing Key Laboratory of Microstructure and Properties of Solids, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing, 100124, P. R. China
| | - Hongwei Huang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, P. R. China
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16
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Xie Z, Xiao G, Zeng X, Yang M, Yao J. Ion-exchange synthesis Ag@Bi2WO6/FeWO4 nanosheet with white-LED-light-driven for efficient activation of peroxymonosulfate: synthesis, characterization, and mechanism. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2023]
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17
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Facile preparation of cyclized polyacrylonitrile modified FeWO4 with superior visible-light-driven photocatalysis. POWDER TECHNOL 2023. [DOI: 10.1016/j.powtec.2023.118341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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18
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He B, Cui Y, Lei Y, Li W, Sun J. Design and application of g-C 3N 4-based materials for fuels photosynthesis from CO 2 or H 2O based on reaction pathway insights. J Colloid Interface Sci 2023; 629:825-846. [PMID: 36202027 DOI: 10.1016/j.jcis.2022.09.114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 09/13/2022] [Accepted: 09/21/2022] [Indexed: 10/14/2022]
Abstract
Photocatalytic CO2 reduction reaction (CRR) and hydrogen evolution reaction (HER) based on graphitic carbon nitride (g-C3N4) that is regarded as the metal-free "holy grail" photocatalyst, provide promising strategies for producing next-generation fuels, contributing to achieving carbon neutrality, alleviating energy and environment crisis. However, the activity of CRR and HER over g-C3N4 leaves much to be desired. Therefore, numerous studies have sprung up to enhance photoactivity. A comprehensive understanding of the CRR and HER reaction pathways is crucial for designing g-C3N4-based materials, further promoting efficient fuel production. Different from previous reviews that focus on g-C3N4 modification from the viewpoint of material science. In this review, we divided the multistep processes of CRR and HER into five reaction pathways and summarized the latest advances for improving each pathway of fuels synthesis through CRR or HER. Meanwhile, the existing bottleneck issues of each step were also discussed. Finally, comprehensive conclusions, including the remaining challenges, outlooks, etc., for CRR and HER over g-C3N4 were put forward. We are sure that this review will conduce to the understanding of the structure-activity relationship between CRR, HER processes, and g-C3N4 structure, which can provide the reference for developing high-powered photocatalysts, not confined to g-C3N4.
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Affiliation(s)
- Bin He
- Key Laboratory of Molecular Medicine and Biotherapy in the Ministry of Industry and Information Technology, School of Life Science, Beijing Institute of Technology, Beijing 100081, PR China
| | - Yuandong Cui
- Key Laboratory of Molecular Medicine and Biotherapy in the Ministry of Industry and Information Technology, School of Life Science, Beijing Institute of Technology, Beijing 100081, PR China; School of Chemistry and Chemical Engineering, Qingdao University, Qingdao, Shandong 266071, PR China
| | - Yu Lei
- Key Laboratory of Molecular Medicine and Biotherapy in the Ministry of Industry and Information Technology, School of Life Science, Beijing Institute of Technology, Beijing 100081, PR China
| | - Wenjin Li
- Key Laboratory of Molecular Medicine and Biotherapy in the Ministry of Industry and Information Technology, School of Life Science, Beijing Institute of Technology, Beijing 100081, PR China
| | - Jian Sun
- Key Laboratory of Molecular Medicine and Biotherapy in the Ministry of Industry and Information Technology, School of Life Science, Beijing Institute of Technology, Beijing 100081, PR China; Advanced Research Institute of Multidisciplinary Science, Beijing Institute of Technology, Beijing 100081, PR China.
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Zhao J, Xiong Z, Zhao Y, Chen X, Zhang J. Two-dimensional heterostructures for photocatalytic CO 2 reduction. ENVIRONMENTAL RESEARCH 2023; 216:114699. [PMID: 36351474 DOI: 10.1016/j.envres.2022.114699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 10/12/2022] [Accepted: 10/28/2022] [Indexed: 06/16/2023]
Abstract
The photocatalysis conversion of CO2 into fuels has become an encouraging method to address climate and energy issues as a long-term solution. Single material suffers poor yield due to low light energy utilization and high recombination rate of photoinduced electron-hole pairs. It is an efficient approach to construct heterojunction through two or three materials to improve the photocatalytic performance. Recently, 2D-based heterojunction is getting popular for outstanding properties, such as special light collecting structure to enhance light harvest, intimate interface to facilitate charge transfer and separation, and large specific surface area to provide abundant reactive sites. Recently, some new 2D-based heterostructures materials (both structure and composition) have been developed with excellent performance. 2D materials exert structural and functional advantages in these fine composite photocatalysts. In this review, the literatures about the photocatalytic conversion of CO2 are mainly summarized based on overall structure, interface type and material type of 2D-based heterojunction, with special attention given to the preparation, characterization, structural advantages and reaction mechanism of novel 2D-based heterojunction. This work is in hope of offering a basis for designing improved composite photocatalyst for CO2 photoreduction.
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Affiliation(s)
- Jiangting Zhao
- State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Zhuo Xiong
- State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China.
| | - Yongchun Zhao
- State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Xiaobo Chen
- Department of Chemistry, University of Missouri-Kansas City, Kansas City, MO, 64110, United States.
| | - Junying Zhang
- State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China.
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20
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Khan J, Sun Y, Han L. A Comprehensive Review on Graphitic Carbon Nitride for Carbon Dioxide Photoreduction. SMALL METHODS 2022; 6:e2201013. [PMID: 36336653 DOI: 10.1002/smtd.202201013] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 09/10/2022] [Indexed: 06/16/2023]
Abstract
Inspired by natural photosynthesis, harnessing the wide range of natural solar energy and utilizing appropriate semiconductor-based catalysts to convert carbon dioxide into beneficial energy species, for example, CO, CH4 , HCOOH, and CH3 COH have been shown to be a sustainable and more environmentally friendly approach. Graphitic carbon nitride (g-C3 N4 ) has been regarded as a highly effective photocatalyst for the CO2 reduction reaction, owing to its cost-effectiveness, high thermal and chemical stability, visible light absorption capability, and low toxicity. However, weaker electrical conductivity, fast recombination rate, smaller visible light absorption window, and reduced surface area make this catalytic material unsuitable for commercial photocatalytic applications. Therefore, certain procedures, including elemental doping, structural modulation, functional group adjustment of g-C3 N4 , the addition of metal complex motif, and others, may be used to improve its photocatalytic activity towards effective CO2 reduction. This review has investigated the scientific community's perspectives on synthetic pathways and material optimization approaches used to increase the selectivity and efficiency of the g-C3 N4 -based hybrid structures, as well as their benefits and drawbacks on photocatalytic CO2 reduction. Finally, the review concludes a comparative discussion and presents a promising picture of the future scope of the improvements.
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Affiliation(s)
- Javid Khan
- College of Materials Science and Engineering, Hunan Joint International Laboratory of Adv. Mater. and Technology for Clean Energy, Hunan University, Changsha, 410082, China
| | - Yanyan Sun
- School of Materials Science and Engineering, Central South University, Changsha, Hunan, 410083, China
| | - Lei Han
- College of Materials Science and Engineering, Hunan Joint International Laboratory of Adv. Mater. and Technology for Clean Energy, Hunan University, Changsha, 410082, China
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Ren M, Hou J, Ma J, Zhang Y, Liu M, Tan X, Zhao P, Lin A, Cui J. Superior electron utilization of the intermetallic L10‑FePt-dispersed g-C3N4 for high-efficiency activating peroxymonosulfate. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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22
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M.Asiri A, Raza A, Khuram Shahzad M, Fadhali MM, Bahadar Khan S, Ahmad Alamry K, Alfifi SY, Marwani HM. Insight into the activation of persulfate with ZrO2 modified S-doped g-C3N4 nanocomposite for degradation of tetracycline hydrochloride. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.114486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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23
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Lin H, Xiao Y, Geng A, Bi H, Xu X, Xu X, Zhu J. Research Progress on Graphitic Carbon Nitride/Metal Oxide Composites: Synthesis and Photocatalytic Applications. Int J Mol Sci 2022; 23:12979. [PMID: 36361768 PMCID: PMC9658189 DOI: 10.3390/ijms232112979] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 09/28/2022] [Accepted: 10/11/2022] [Indexed: 12/31/2023] Open
Abstract
Although graphitic carbon nitride (g-C3N4) has been reported for several decades, it is still an active material at the present time owing to its amazing properties exhibited in many applications, including photocatalysis. With the rapid development of characterization techniques, in-depth exploration has been conducted to reveal and utilize the natural properties of g-C3N4 through modifications. Among these, the assembly of g-C3N4 with metal oxides is an effective strategy which can not only improve electron-hole separation efficiency by forming a polymer-inorganic heterojunction, but also compensate for the redox capabilities of g-C3N4 owing to the varied oxidation states of metal ions, enhancing its photocatalytic performance. Herein, we summarized the research progress on the synthesis of g-C3N4 and its coupling with single- or multiple-metal oxides, and its photocatalytic applications in energy production and environmental protection, including the splitting of water to hydrogen, the reduction of CO2 to valuable fuels, the degradation of organic pollutants and the disinfection of bacteria. At the end, challenges and prospects in the synthesis and photocatalytic application of g-C3N4-based composites are proposed and an outlook is given.
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Affiliation(s)
| | | | | | | | | | | | - Junjiang Zhu
- Hubei Key Laboratory of Biomass Fibers and Eco-Dyeing & Finishing, College of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan 430200, China
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Abstract
Photocatalysis represents a promising technology that might alleviate the current environmental crisis. One of the most representative photocatalysts is graphitic carbon nitride (g-C3N4) due to its stability, cost-effectiveness, facile synthesis procedure, and absorption properties in visible light. Nevertheless, pristine g-C3N4 still exhibits low photoactivity due to the rapid recombination of photo-induced electron-hole (e−-h+) pairs. To solve this drawback, Z-scheme photocatalysts based on g-C3N4 are superior alternatives since these systems present the same band configuration but follow a different charge carrier recombination mechanism. To contextualize the topic, the main drawbacks of using g-C3N4 as a photocatalyst in environmental applications are mentioned in this review. Then, the basic concepts of the Z-scheme and the synthesis and characterization of the Z-scheme based on g-C3N4 are addressed to obtain novel systems with suitable photocatalytic activity in environmental applications (pollutant abatement, H2 production, and CO2 reduction). Focusing on the applications of the Z-scheme based on g-C3N4, the most representative examples of these systems are referred to, analyzed, and commented on in the main text. To conclude this review, an outlook of the future challenges and prospects of g-C3N4-based Z-scheme photocatalysts is addressed.
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Zheng J, Lin X, Zheng X, Yu P. Highly Efficient Photocatalysis and Photo Fenton‐Like Catalyst Degradation of Tetracycline and Rhodamine B Using Novel Porous Z‐Scheme WO
3
/g‐C
3
N
4
of In Situ Synthesis. CRYSTAL RESEARCH AND TECHNOLOGY 2022. [DOI: 10.1002/crat.202200135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jiahong Zheng
- School of Materials Science and Engineering Chang'an University Xi'an 710064 P. R. China
| | - Xiaopeng Lin
- School of Materials Science and Engineering Chang'an University Xi'an 710064 P. R. China
| | - Xin Zheng
- School of Materials Science and Engineering Chang'an University Xi'an 710064 P. R. China
| | - Pengfei Yu
- School of Materials Science and Engineering Chang'an University Xi'an 710064 P. R. China
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26
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The promoted tetracycline visible-light-driven photocatalytic degradation efficiency of g-C3N4/FeWO4 Z-scheme heterojunction with peroxymonosulfate assisting and mechanism. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121440] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Jahanshahi R, Mohammadi A, Doosti M, Sobhani S, Sansano JM. ZnCo 2O 4/g-C 3N 4/Cu nanocomposite as a new efficient and recyclable heterogeneous photocatalyst with enhanced photocatalytic activity towards the metronidazole degradation under the solar light irradiation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:65043-65060. [PMID: 35484449 DOI: 10.1007/s11356-022-19969-3] [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: 10/28/2021] [Accepted: 03/25/2022] [Indexed: 06/14/2023]
Abstract
In this study, ZnCo2O4/g-C3N4/Cu is synthesized as a new and highly effectual solar light-driven heterogeneous photocatalyst. The prepared photocatalyst is characterized using FT-IR, XRD, XPS, DRS, FESEM, TEM, EDS, and elemental mapping techniques. The performance of ZnCo2O4/g-C3N4/Cu is studied towards the metronidazole (MNZ) degradation under solar light irradiation. The kinetics of MNZ degradation and efficacy of the operational parameters comprising the initial MNZ amount (10-30 mg L-1), photocatalyst dosage (0.005-0.05 g L-1), pH (3-11), and contact time (5-30 min) on the MNZ degradation process are investigated. Surprisingly, the ZnCo2O4/g-C3N4/Cu nanocomposite presents a privileged photocatalytic performance towards the MNZ degradation under solar light irradiation. The enhanced photocatalytic activity of this photocatalyst can be ascribed to the synergistic optical effects of ZnCo2O4, g-C3N4, and Cu. The value of band gap energy for ZnCo2O4/g-C3N4/Cu is estimated to be 2.3 eV based on the Tauc plot of (αhν)2 vs. hν. The radical quenching experiments confirm that the superoxide radicals and holes are the principal active species in the photocatalytic degradation of MNZ, whereas the hydroxyl radicals have no major role in such degradation. The as-prepared photocatalyst is simply isolated and recycled for at least eight runs without noticeable loss of the efficiency. Using the natural sunlight source, applying a very low amount of the photocatalyst, neutrality of the reaction medium, short reaction time, high efficiency of the degradation procedure, utilizing air as the oxidant, low operational costs, and easy to recover and reuse of the photocatalyst are the significant highlights of the present method. It is supposed that the current investigation can be a step forward in the representation of an efficacious photocatalytic system in the treatment of a wide range of contaminated aquatic environments.
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Affiliation(s)
- Roya Jahanshahi
- Department of Chemistry, College of Sciences, University of Birjand, Birjand, Iran
| | - Alieh Mohammadi
- Department of Civil Engineering, Faculty of Engineering, University of Birjand, Birjand, Iran
| | - Mohammadreza Doosti
- Department of Civil Engineering, Faculty of Engineering, University of Birjand, Birjand, Iran
| | - Sara Sobhani
- Department of Chemistry, College of Sciences, University of Birjand, Birjand, Iran.
| | - José Miguel Sansano
- Departamento de Química Orgánica, Facultad de Ciencias, Centro de Innovación en Química Avanzada (ORFEO-CINQA) and Instituto de Síntesis Orgánica (ISO), Universidad de Alicante, Apdo. 99, 03080, Alicante, Spain
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Debnath B, Hossain SM, Sadhu A, Singh S, Polshettiwar V, Ogale S. Construction of a 2D/2D g-C 3N 5/NiCr-LDH Heterostructure to Boost the Green Ammonia Production Rate under Visible Light Illumination. ACS APPLIED MATERIALS & INTERFACES 2022; 14:37076-37087. [PMID: 35925836 DOI: 10.1021/acsami.2c03758] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Photocatalytic N2 fixation has emerged as one of the most useful ways to produce NH3, a useful asset for chemical industries and a carbon-free energy source. Recently, significant progress has been made toward designing efficient photocatalysts to achieve this objective. Here, we introduce a highly active type-II heterojunction fabricated via integrating two-dimensional (2D) nanosheets of exfoliated g-C3N5 with nickel-chromium layered double hydroxide (NiCr-LDH). With an optimized loading of NiCr-LDH on exfoliated g-C3N5, excellent performance is realized for green ammonia synthesis under ambient conditions without any noble metal cocatalyst(s). Indeed, the g-C3N5/NiCr-LDH heterostructure with 2 wt % of NiCr-LDH (CN-NCL-2) exhibits an ammonia yield of about 2.523 mmol/g/h, which is about 7.51 and 2.86 times higher than that of solo catalysts, i.e., NiCr-LDH (NC-L) and exfoliated g-C3N5 (CN-5), respectively, where methanol is used as a sacrificial agent. The enhancement of NH3 evolution by the g-C3N5/NiCr-LDH heterostructure can be attributed to the efficient charge transfer, a key factor to the photocatalytic N2 fixation rate enhancement. Additionally, N2 vacancies present in the system help adsorb N2 on the surface, which improves the ammonia production rate further. The best-performing heterostructure also shows long-term stability with the NH3 production rate remaining nearly constant over 20 h, demonstrating the excellent robustness of the photocatalyst.
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Affiliation(s)
- Bharati Debnath
- Research Institute for Sustainable Energy (RISE), TCG Centres for Research and Education in Science and Technology (TCG-CREST), Kolkata 700091, India
- Department of Physics and Centre for Energy Science, Indian Institute of Science Education and Research (IISER), Pune 411008, Maharashtra, India
| | - Sk Mujaffar Hossain
- Department of Chemistry and Centre for Energy Science, Indian Institute of Science Education and Research (IISER), Pune 411008, Maharashtra, India
| | - Anustup Sadhu
- Department of Chemistry, Techno India University, Kolkata 700091, India
| | - Saideep Singh
- Department of Chemical Sciences, Tata Institute of Fundamental Research (TIFR), Mumbai 400005, India
| | - Vivek Polshettiwar
- Department of Chemical Sciences, Tata Institute of Fundamental Research (TIFR), Mumbai 400005, India
| | - Satishchandra Ogale
- Research Institute for Sustainable Energy (RISE), TCG Centres for Research and Education in Science and Technology (TCG-CREST), Kolkata 700091, India
- Department of Physics and Centre for Energy Science, Indian Institute of Science Education and Research (IISER), Pune 411008, Maharashtra, India
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Sreeram N, Aruna V, Koutavarapu R, Lee DY, Shim J. Visible-light-driven indium vanadium oxide nanosheets supported bismuth tungsten oxide nanoflakes heterostructure as an efficient photocatalyst for the tetracycline degradation. CHEMOSPHERE 2022; 299:134477. [PMID: 35367491 DOI: 10.1016/j.chemosphere.2022.134477] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 03/16/2022] [Accepted: 03/28/2022] [Indexed: 06/14/2023]
Abstract
The development of excellent photocatalysts is of great significance for the efficient photocatalytic degradation process, however, the low carrier separation efficiency and poor light absorption ability typically limit the performance of photocatalysts. Herein, a visible light responsive heterostructure composed with indium vanadium oxide nanosheets supported bismuth tungsten oxide nanoflakes (InVO4/Bi2WO6) was synthetized through in-situ hydrothermal method. Further, the photocatalytic activity was performed for tetracycline (TC) under visible light illumination. The InVO4/Bi2WO6 heterostructure builds a strong interface between InVO4 and Bi2WO6 to hinder reunion of photoinduced charge carriers, and provides the sensitive agents for the removal of TC. In particular, the InVO4/Bi2WO6 photocatalyst prepared by taking 5.0 mg of Bi2WO6 shows the highest degradation of TC about 97.42% in 72 min. The quenching experiments identified that hydroxyl radicals, and holes dominated in the photocatalytic process. Furthermore, the optimized nanocomposite is stable even after four cycles, which exposes the excellent photostability and reusability of the photocatalyst. In addition, a plausible degradation pathway and mechanism of TC over InVO4/Bi2WO6 nanocomposite is also projected.
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Affiliation(s)
- N Sreeram
- Department of Physics, Acharya Nagarjuna University, Nagarjuna Nagar, Guntur, 522 510, Andhra Pradesh, India
| | - V Aruna
- Department of Physics, Acharya Nagarjuna University, Nagarjuna Nagar, Guntur, 522 510, Andhra Pradesh, India; Department of Physics, Bapatla Engineering College, Bapatla, 522 102, Andhra Pradesh, India.
| | - Ravindranadh Koutavarapu
- Department of Robotics Engineering, College of Mechanical and IT Engineering, Yeungnam University, Gyeongsan, 38541, Republic of Korea.
| | - Dong-Yeon Lee
- Department of Robotics Engineering, College of Mechanical and IT Engineering, Yeungnam University, Gyeongsan, 38541, Republic of Korea.
| | - Jaesool Shim
- School of Mechanical Engineering, Yeungnam University, Gyeongsan, 38541, Republic of Korea.
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30
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Bhosale R, Debnath B, Ogale S. Designing Nanoengineered Photocatalysts for Hydrogen Generation by Water Splitting and Conversion of Carbon Dioxide to Clean Fuels. CHEM REC 2022; 22:e202200110. [PMID: 35758532 DOI: 10.1002/tcr.202200110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 06/08/2022] [Indexed: 11/06/2022]
Abstract
Semiconductor photocatalysis has received tremendous attention in the past decade as it has shown great promise in the context of clean energy harvesting for environmental remediation. Sunlight is an inexhaustible source of energy available to us throughout the year, although it is rather dilutely dispersed. Semiconductor based photocatalysis presents one of the best ways to harness this source of energy to carry out chemical reactions of interest that require external energy input. Photocatalytic hydrogen generation by splitting of water, CO2 mitigation, and CO2 conversion to green fuel have therefore become the highly desirable clean and sustainable processes for a better tomorrow. Although numerous efforts have been made and continue to be expended to search and develop new classes of photocatalyst materials in recent years, several significant challenges still remain to be resolved before photocatalysis can reach its commercial potential. Therefore, major attention is required towards improving the efficiencies of the existing photocatalysts by further manipulating them and parallelly employing newer strategies for novel photocatalyst designs. This personal account aims to provide a broad overview of the field primarily invoking examples of our own research contributions in the field, which include photocatalytic hydrogen generation and CO2 reduction to value added chemicals. This account reviews the state-of-the-art research activities and scientific possibilities which a functional material can offer if its properties are put to best use through goal-oriented design by combining with other compatible materials. We have addressed fundamental principles of photocatalysis, different kind of functional photocatalysts, critical issues associated with them and various strategies to overcome the related hurdles. It is our hope that this current personal account will provide a platform for young researchers to address the bottleneck issues in the field of photocatalysis and photocatalysts with a sense of clarity, and to find innovative solutions to resolve them by a prudent choice of materials, synthesis protocols, and approaches to boost the photocatalysis output. We emphasize that a targeted or goal-directed photocatalyst nanoengineering as perhaps the only way to realize an early success in this multiparametric domain.
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Affiliation(s)
- Reshma Bhosale
- Department of Environmental Science, Savitribai Phule Pune University, Pune, 411007, India
| | - Bharati Debnath
- Research Institute for Sustainable Energy (TCG-CREST), Salt Lake, Kolkata, 700091, India
| | - Satishchandra Ogale
- Research Institute for Sustainable Energy (TCG-CREST), Salt Lake, Kolkata, 700091, India.,Department of Physics, Indian Institute for Science Education and Research, Dr. Homi Bhabha Road, Pune, 411008, India
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Liu C, Niu H, Wang D, Gao C, Said A, Liu Y, Wang G, Tung CH, Wang Y. S-Scheme Bi-oxide/Ti-oxide Molecular Hybrid for Photocatalytic Cycloaddition of Carbon Dioxide to Epoxides. ACS Catal 2022. [DOI: 10.1021/acscatal.2c02256] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Caiyun Liu
- Key Laboratory for Colloid and Interface Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Huihui Niu
- Key Laboratory for Colloid and Interface Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Dexin Wang
- Key Laboratory for Colloid and Interface Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Chang Gao
- Key Laboratory for Colloid and Interface Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Amir Said
- Key Laboratory for Colloid and Interface Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Yanshu Liu
- Key Laboratory for Colloid and Interface Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Guo Wang
- Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Chen-Ho Tung
- Key Laboratory for Colloid and Interface Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Yifeng Wang
- Key Laboratory for Colloid and Interface Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
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Alam U, Pandey K, Verma N. Photocatalytic oxidation of glyphosate and reduction of Cr(VI) in water over ACF-supported CoNiWO 4-gCN composite under batch and flow conditions. CHEMOSPHERE 2022; 297:134119. [PMID: 35227749 DOI: 10.1016/j.chemosphere.2022.134119] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 02/06/2022] [Accepted: 02/24/2022] [Indexed: 06/14/2023]
Abstract
Photocatalytic treatment of wastewater using nanomaterials is an efficient energy saving technology. Yet the practical application of the technology is limited because of difficulty in developing the stable, supported photocatalytic nanoparticles that can be used under continuous flow conditions. Here, we report an efficient removal of glyphosate (GLP) and Cr(VI) from water under batch as well as continuous flow conditions using the activated carbon fiber (ACF)-supported nanocomposite of CoNiWO4 (CNW) and g-C3N4 (gCN), as a photocatalyst. CNW-gCN/ACF is synthesized using a one-step strategy, and spectroscopic characterization techniques are used to corroborate the formation of the Z-scheme-based CNW-gCN heterojunction in the ACF substrate. Efficacy of the photocatalyst is assessed in visible light irradiation. The batch activity data of the individual pollutant show the complete oxidation of GLP at 30 ppm and reduction of Cr(VI) at 200 ppm concentration levels in 60 and 150 min, respectively at 1 g/L dose of CNW-gCN/ACF. Photocatalytic efficiency of CNW-gCN/ACF in the simultaneous removal of both pollutants from co-contaminated feed is found to be greater than that in single-feed system under identical experimental conditions. Tested under flow conditions, CNW-gCN/ACF shows approximately the same rates of oxidation and reduction as prevalent under batch conditions, indicating the efficient immobilization of the nanocatalyst particles in ACF, which not only prevents elution of the catalyst but also improves its reusability. The toxicity data indicate the treated water samples to be non-toxic. The current study provides an efficient method for developing supported nanomaterial photocatalysts for treating flowing co-contaminated wastewater.
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Affiliation(s)
- Umair Alam
- Department of Chemical Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India.
| | - Komal Pandey
- Center for Environmental Science and Engineering, Indian Institute of Technology, Kanpur, 208016, India
| | - Nishith Verma
- Department of Chemical Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India; Center for Environmental Science and Engineering, Indian Institute of Technology, Kanpur, 208016, India.
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Hojamberdiev M, Czech B, Wasilewska A, Boguszewska-Czubara A, Yubuta K, Wagata H, Daminova SS, Kadirova ZC, Vargas R. Detoxifying SARS-CoV-2 antiviral drugs from model and real wastewaters by industrial waste-derived multiphase photocatalysts. JOURNAL OF HAZARDOUS MATERIALS 2022; 429:128300. [PMID: 35077970 PMCID: PMC8767938 DOI: 10.1016/j.jhazmat.2022.128300] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 01/01/2022] [Accepted: 01/16/2022] [Indexed: 05/28/2023]
Abstract
The use of antiviral drugs has surged as a result of the COVID-19 pandemic, resulting in higher concentrations of these pharmaceuticals in wastewater. The degradation efficiency of antiviral drugs in wastewater treatment plants has been reported to be too low due to their hydrophilic nature, and an additional procedure is usually necessary to degrade them completely. Photocatalysis is regarded as one of the most effective processes to degrade antiviral drugs. The present study aims at synthesizing multiphase photocatalysts by a simple calcination of industrial waste from ammonium molybdate production (WU photocatalysts) and its combination with WO3 (WW photocatalysts). The X-ray diffraction (XRD) results confirm that the presence of multiple crystalline phases in the synthesized photocatalysts. UV-Vis diffuse reflectance spectra reveal that the synthesized multiphase photocatalysts absorb visible light up to 620 nm. Effects of calcination temperature of industrial waste (550-950 °C) and WO3 content (0-100%) on photocatalytic activity of multiphase photocatalysts (WU and WW) for efficient removal of SARS-CoV-2 antiviral drugs (lopinavir and ritonavir) in model and real wastewaters are studied. The highest k1 value is observed for the photocatalytic removal of ritonavir from model wastewater using WW4 (35.64 ×10-2 min-1). The multiphase photocatalysts exhibit 95% efficiency in the photocatalytic removal of ritonavir within 15 of visible light irradiation. In contrast, 60 min of visible light irradiation is necessary to achieve 95% efficiency in the photocatalytic removal of lopinavir. The ecotoxicity test using zebrafish (Danio rerio) embryos shows no toxicity for photocatalytically treated ritonavir-containing wastewater, and the contrary trend is observed for photocatalytically treated lopinavir-containing wastewater. The synthesized multiphase photocatalysts can be tested and applied for efficient degradation of other SARS-CoV-2 antiviral drugs in wastewater in the future.
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Affiliation(s)
- Mirabbos Hojamberdiev
- Institut für Chemie, Technische Universität Berlin, Straße des 17. Juni 135, 10623 Berlin, Germany.
| | - Bożena Czech
- Department of Radiochemistry and Environmental Chemistry, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Skłodowska University, Pl. M. Curie-Skłodowskiej 3, 20-031 Lublin, Poland.
| | - Anna Wasilewska
- Department of Radiochemistry and Environmental Chemistry, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Skłodowska University, Pl. M. Curie-Skłodowskiej 3, 20-031 Lublin, Poland
| | - Anna Boguszewska-Czubara
- Department of Medical Chemistry, Medical University of Lublin, Chodźki 4a, Lublin 20-093, Poland
| | - Kunio Yubuta
- Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University, Fukuoka 819-0395, Japan
| | - Hajime Wagata
- Department of Applied Chemistry, School of Science and Technology, Meiji University, Kawasaki 214-8571, Japan
| | - Shahlo S Daminova
- Department of Inorganic Chemistry, National University of Uzbekistan, Tashkent 100174, Uzbekistan; Uzbekistan-Japan Innovation Center of Youth, University Str. 2B, Tashkent 100095, Uzbekistan
| | - Zukhra C Kadirova
- Department of Inorganic Chemistry, National University of Uzbekistan, Tashkent 100174, Uzbekistan; Uzbekistan-Japan Innovation Center of Youth, University Str. 2B, Tashkent 100095, Uzbekistan
| | - Ronald Vargas
- Instituto Tecnológico de Chascomús (INTECH) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) / Universidad Nacional de San Martín (UNSAM), Avenida Intendente Marino, Km 8,2, B7130IWA Chascomús, Provincia de Buenos Aires, Argentina
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Ou S, Zhou M, Chen W, Zhang Y, Liu Y. COF-5/CoAl-LDH Nanocomposite Heterojunction for Enhanced Visible-Light-Driven CO 2 Reduction. CHEMSUSCHEM 2022; 15:e202200184. [PMID: 35187792 DOI: 10.1002/cssc.202200184] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 02/15/2022] [Indexed: 06/14/2023]
Abstract
Photocatalytic conversion of CO2 into value-added chemical fuels is an attractive route to mitigate global warming and the energy crisis. Reasonable design of optical properties and electronic behavior of the photocatalyst are essential to improve their catalytic activity. Herein, the 1D/2D heterojunction by direct in-situ synthesis of the covalent organic framework (COF)-5 colloid on the surface of CoAl layered double hydroxide (LDH) was used as the prospective photocatalyst for CO2 reduction. COF-5/CoAl-LDH nanocomposite achieved 265.4 μmol g-1 of CO with 94.6 % selectivity over CH4 evolution in 5 h under visible light irradiation, which was 4.8 and 2.3 times higher than those of COF-5 colloid and CoAl-LDH, respectively. The enhanced catalytic activity was derived from the increased visible-light activity and the construction of type II-2 heterojunction, which greatly optimized visible light harvesting and accelerated the efficient separation of the photoinduced holes and electrons. This work paves the way for rational design of heterojunction catalysts in photocatalytic CO2 reduction.
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Affiliation(s)
- Siyong Ou
- State Key Laboratory of Silicate Materials for Architectures, School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Min Zhou
- State Key Laboratory of Silicate Materials for Architectures, School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Wen Chen
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Yuyao Zhang
- State Key Laboratory of Silicate Materials for Architectures, School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Yueli Liu
- State Key Laboratory of Silicate Materials for Architectures, School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, P. R. China
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35
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Chen Y, Sun X, Huang Y, Guo D, Zheng L, Liu Y, Li S. Hierarchical Bi0.5Fe0.5VO4/honeycomb ceramic plate synergize plasma induce multi-catalysis by constructing a plasma-catalyst system for organic pollutant degradation. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120444] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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36
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Debnath B, Singh S, Hossain SM, Krishnamurthy S, Polshettiwar V, Ogale S. Visible Light-Driven Highly Selective CO 2 Reduction to CH 4 Using Potassium-Doped g-C 3N 5. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:3139-3148. [PMID: 35234471 DOI: 10.1021/acs.langmuir.1c03127] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Establishment of an efficient and robust artificial photocatalytic system to convert solar energy into chemical fuels through CO2 conversion is a cherished goal in the fields of clean energy and environmental protection. In this work, we have explored an emergent low-Z nitrogen-rich carbon nitride material g-C3N5 (analogue of g-C3N4) for CO2 conversion under visible light illumination. A significant enhancement of the CH4 production rate was detected for g-C3N5 in comparison to that of g-C3N4. Notably, g-C3N5 also showed a very impressive selectivity of 100% toward CH4 as compared to 21% for g-C3N4. The photocatalytic CO2 conversion was performed without using sacrificial reagents. We found that 1% K doping in g-C3N5 enhanced its performance even further without compromising the selectivity. Moreover, 1% K-doped g-C3N5 also exhibited better photostability than undoped g-C3N5. We have also employed density functional theory calculation-based analyses to understand and elucidate the possible reasons for the better photocatalytic performance of K-doped g-C3N5.
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Affiliation(s)
- Bharati Debnath
- Department of Physics and Centre for Energy Science, Indian Institute of Science Education and Research (IISER) Pune, Maharashtra 411008, India
- Research Institute for Sustainable Energy (RISE), TCG Centres for Research and Education in Science and Technology (TCG-CREST), Kolkata 700091, India
| | - Saideep Singh
- Department of Chemical Sciences, Tata Institute of Fundamental Research (TIFR), Mumbai 400005, India
| | - Sk Mujaffar Hossain
- Department of Chemistry and Centre for Energy Science, Indian Institute of Science Education and Research (IISER) Pune, Maharashtra 411008, India
| | - Shrreya Krishnamurthy
- Department of Physics and Centre for Energy Science, Indian Institute of Science Education and Research (IISER) Pune, Maharashtra 411008, India
| | - Vivek Polshettiwar
- Department of Chemical Sciences, Tata Institute of Fundamental Research (TIFR), Mumbai 400005, India
| | - Satishchandra Ogale
- Department of Physics and Centre for Energy Science, Indian Institute of Science Education and Research (IISER) Pune, Maharashtra 411008, India
- Research Institute for Sustainable Energy (RISE), TCG Centres for Research and Education in Science and Technology (TCG-CREST), Kolkata 700091, India
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37
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Behera A, Kar AK, Srivastava R. Challenges and prospects in the selective photoreduction of CO 2 to C1 and C2 products with nanostructured materials: a review. MATERIALS HORIZONS 2022; 9:607-639. [PMID: 34897343 DOI: 10.1039/d1mh01490k] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Solar fuel generation through CO2 hydrogenation is the ultimate strategy to produce sustainable energy sources and alleviate global warming. The photocatalytic CO2 conversion process resembles natural photosynthesis, which regulates the ecological systems of the earth. Currently, most of the work in this field has been focused on boosting efficiency rather than controlling the distribution of products. The structural architecture of the semiconductor photocatalyst, CO2 photoreduction process, product analysis, and elucidating the CO2 photoreduction mechanism are the key features of the photoreduction of CO2 to generate C1 and C2 based hydrocarbon fuels. The selectivity of C1 and C2 products during the photocatalytic CO2 reduction have been ameliorated by suitable photocatalyst design, co-catalyst, defect states, and the impacts of the surface polarisation state, etc. Monitoring product selectivity allows the establishment of an appropriate strategy to generate a more reduced state of a hydrocarbon, such as CH4 or higher carbon (C2) products. This article concentrates on studies that demonstrate the production of C1 and C2 products during CO2 photoreduction using H2O or H2 as an electron and proton source. Finally, it highlights unresolved difficulties in achieving high selectivity and photoconversion efficiency of CO2 in C1 and C2 products over various nanostructured materials.
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Affiliation(s)
- Arjun Behera
- Catalysis Research Laboratory, Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar-140001, India.
| | - Ashish Kumar Kar
- Catalysis Research Laboratory, Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar-140001, India.
| | - Rajendra Srivastava
- Catalysis Research Laboratory, Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar-140001, India.
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38
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Sun M, Li F, Zhao F, Wu T, Yan T, Du B, Li D. Ionic liquid-assisted fabrication of metal-organic framework-derived indium oxide/bismuth oxyiodide p-n junction photocatalysts for robust photocatalysis against phenolic pollutants. J Colloid Interface Sci 2022; 606:1261-1273. [PMID: 34492464 DOI: 10.1016/j.jcis.2021.08.132] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 08/20/2021] [Accepted: 08/21/2021] [Indexed: 11/28/2022]
Abstract
Constructing a p-n heterojunction is a feasible strategy to manipulate the dynamic behaviors of photogenerated carriers through an internal electric field. Herein, a novel highly efficient indium oxide/bismuth oxyiodide (In2O3/BiOI) p-n junction photocatalyst was fabricated using a facile ionic liquid-assisted precipitation method for the first time. The morphologies were modified by adding different amounts of acetic acid solution. Their hierarchical architecture was beneficial for adsorbing contaminants in wastewater, while the in-situ formed p-n heterojunction between BiOI and In2O3 facilitated interfacial charge transfer and improved the quantum efficiency. Their visible light-responsive photocatalytic activities were systematically investigated by photocatalytic o-phenylphenol (OPP) and 4-tert-butylphenol (PTBP) oxidation. The degradation rate of OPP over In2O3/BiOI-2 was up to 5.67 times higher than that for BiOI. The excellent activity of In2O3/BiOI should be attributed to the rapid interfacial charge transfer, depressed carrier recombination, and proper band potentials. Trapping experiments and electron paramagnetic resonance characterizations confirmed the generation of hydroxyl radicals (•OH) and superoxide radicals (•O2-), which have played a key role in decomposing pollutants. The intermediate products generated during the photocatalytic degradation of OPP were detected and identified by liquid chromatography-mass spectrometry. Meanwhile, their possible molecular structures and degradation pathways have also been inferred.
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Affiliation(s)
- Meng Sun
- School of Water Conservancy and Environment, University of Jinan, Jinan 250022, PR China.
| | - Fengli Li
- School of Water Conservancy and Environment, University of Jinan, Jinan 250022, PR China
| | - Fulei Zhao
- School of Water Conservancy and Environment, University of Jinan, Jinan 250022, PR China
| | - Tingting Wu
- School of Water Conservancy and Environment, University of Jinan, Jinan 250022, PR China
| | - Tao Yan
- School of Water Conservancy and Environment, University of Jinan, Jinan 250022, PR China.
| | - Bin Du
- School of Water Conservancy and Environment, University of Jinan, Jinan 250022, PR China
| | - Danzhen Li
- State Key Laboratory of Photocatalysis on Energy and Environment, Research Institute of Photocatalysis, Fuzhou University, Fuzhou 350116, PR China
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39
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Almojil SF, Almohana AI, Alali AF, Attia EA, Sharma K, Shamseldin MA, Mohammed AG, Cao Y. Oxygen vacancy and p–n heterojunction in a g-C 3N 4 nanosheet/CuFeO 2 nanocomposite for enhanced photocatalytic N 2 fixation to NH 3 under ambient conditions. NEW J CHEM 2022. [DOI: 10.1039/d2nj02850f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
In this article, the nitrogen fixation process over g-C3N4 nanosheets/CuFeO2 p–n heterojunction photocatalyst is presented.
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Affiliation(s)
- Sattam Fahad Almojil
- Department of Civil Engineering, College of Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia
| | - Abdulaziz Ibrahim Almohana
- Department of Civil Engineering, College of Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia
| | - Abdulrhman Fahmi Alali
- Department of Civil Engineering, College of Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia
| | - El-Awady Attia
- Department of Industrial Engineering, College of Engineering, Prince Sattam bin Abdulaziz University, Al Kharj 16273, Saudi Arabia
- Mechanical Engineering Department, faculty of engineering (Shoubra), Benha University, Cairo, Egypt
| | - Kamal Sharma
- Institute of Engineering and Technology, GLA University, Mathura, U.P., 281406, India
| | - Mohamed A. Shamseldin
- Department of Mechanical Engineering, Faculty of Engineering & Technology, Future University in Egypt, 11845 New Cairo, Egypt
| | - Azheen Ghafour Mohammed
- Department of Information Technology, College of Engineering and Computer Science, Lebanese French University, Kurdistan Region, Iraq
| | - Yan Cao
- School of Mechatronic Engineering, Xi’an Technological University, Xi’an, 710021, China
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40
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Yuan Y, Guo RT, Hong LF, Lin ZD, Ji XY, Pan WG. Fabrication of a dual S-scheme Bi 7O 9I 3/g-C 3N 4/Bi 3O 4Cl heterojunction with enhanced visible-light-driven performance for phenol degradation. CHEMOSPHERE 2022; 287:132241. [PMID: 34826928 DOI: 10.1016/j.chemosphere.2021.132241] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 08/31/2021] [Accepted: 09/10/2021] [Indexed: 06/13/2023]
Abstract
S-scheme heterostructure can facilitate the separation of carriers while maintain outstanding redox capacity. A series of ternary Bi7O9I3/g-C3N4/Bi3O4Cl photocatalytic system was triumphantly synthesized via oil bath method in this work and used in photocatalytic degradation of phenol. The optimal TOC removal rate reached up to 93.57% under illumination for 160 min, which was slightly lower than phenol photodegradation (about 100%, 100 min). Correspondingly, the apparent rate constants for the decay of phenol are determined to be 0.0211 min-1. The experiment of free radical capture indicated that ·OH and ·O2- were the major oxidizing substances to degrade phenol. The products of phenol photodegradation were identified by high performance liquid chromatography (HPLC) and a possible degradation pathway was proposed. The characterization analysis and density functional theory (DFT) calculations demonstrated that dual S-scheme charge migration was generated at the interface of Bi7O9I3, g-C3N4 and Bi3O4Cl, contributing to an efficient separation of light-excited carriers. In the field of environmental remediation, the discovery of this work could open up promising vistas for designing bismuth-based ternary heterostructures with application potentiality.
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Affiliation(s)
- Ye Yuan
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai, China
| | - Rui-Tang Guo
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai, China; Shanghai Engineering Research Center of Power Generation Environment Protection, Shanghai, China.
| | - Long-Fei Hong
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai, China
| | - Zhi-Dong Lin
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai, China
| | - Xiang-Yin Ji
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai, China
| | - Wei-Guo Pan
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai, China; Shanghai Engineering Research Center of Power Generation Environment Protection, Shanghai, China.
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41
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Pachaiappan R, Rajendran S, Senthil Kumar P, Vo DVN, K.A. Hoang T. A review of recent progress on photocatalytic carbon dioxide reduction into sustainable energy products using carbon nitride. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2021.11.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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42
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Das R, Sarkar S, Kumar R, D. Ramarao S, Cherevotan A, Jasil M, Vinod CP, Singh AK, Peter SC. Noble-Metal-Free Heterojunction Photocatalyst for Selective CO2 Reduction to Methane upon Induced Strain Relaxation. ACS Catal 2021. [DOI: 10.1021/acscatal.1c04587] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Risov Das
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
- School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
| | - Shreya Sarkar
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
- School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
| | - Ritesh Kumar
- Materials Research Centre, Indian Institute of Science, Bangalore 560012, India
| | - Seethiraju D. Ramarao
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
- School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
| | - Arjun Cherevotan
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
- School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
| | - Mohammed Jasil
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
- School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
| | - Chathakudath. P. Vinod
- Catalysis and Inorganic Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 410008, India
| | | | - Sebastian C. Peter
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
- School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
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43
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Alam U, Verma N. Direct Z-scheme-based novel cobalt nickel tungstate/graphitic carbon nitride composite: Enhanced photocatalytic degradation of organic pollutants and oxidation of benzyl alcohol. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127606] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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44
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Liu Z, Guo W, Liu X, Wu G, Tang Y, Mo Z, Yang D. Study on photoelectric properties of Fe-Co codoped g-C3N4. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2021.138951] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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45
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Zhao Y, Li F, Li W, Li Y, Liu C, Zhao Z, Shan Y, Ji Y, Sun L. Identification of M‐NH
2
‐NH
2
Intermediate and Rate Determining Step for Nitrogen Reduction with Bioinspired Sulfur‐Bonded FeW Catalyst. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202104918] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yilong Zhao
- State Key Laboratory of Fine Chemicals Institute of Artificial Photosynthesis DUT-KTH Joint Education and Research Centre on Molecular Devices Dalian University of Technology Dalian 116024 P. R. China
| | - Fusheng Li
- State Key Laboratory of Fine Chemicals Institute of Artificial Photosynthesis DUT-KTH Joint Education and Research Centre on Molecular Devices Dalian University of Technology Dalian 116024 P. R. China
| | - Wenlong Li
- State Key Laboratory of Fine Chemicals Institute of Artificial Photosynthesis DUT-KTH Joint Education and Research Centre on Molecular Devices Dalian University of Technology Dalian 116024 P. R. China
| | - Yingzheng Li
- State Key Laboratory of Fine Chemicals Institute of Artificial Photosynthesis DUT-KTH Joint Education and Research Centre on Molecular Devices Dalian University of Technology Dalian 116024 P. R. China
| | - Chang Liu
- State Key Laboratory of Fine Chemicals Institute of Artificial Photosynthesis DUT-KTH Joint Education and Research Centre on Molecular Devices Dalian University of Technology Dalian 116024 P. R. China
| | - Ziqi Zhao
- State Key Laboratory of Fine Chemicals Institute of Artificial Photosynthesis DUT-KTH Joint Education and Research Centre on Molecular Devices Dalian University of Technology Dalian 116024 P. R. China
| | - Yu Shan
- State Key Laboratory of Fine Chemicals Institute of Artificial Photosynthesis DUT-KTH Joint Education and Research Centre on Molecular Devices Dalian University of Technology Dalian 116024 P. R. China
| | - Yongfei Ji
- School of Chemistry and Chemical Engineering Guangzhou University Guangzhou 510006 China
| | - Licheng Sun
- State Key Laboratory of Fine Chemicals Institute of Artificial Photosynthesis DUT-KTH Joint Education and Research Centre on Molecular Devices Dalian University of Technology Dalian 116024 P. R. China
- Department of Chemistry School of Engineering Sciences in Chemistry, Biotechnology and Health KTH Royal Institute of Technology 10044 Stockholm Sweden
- Center of Artificial Photosynthesis for Solar Fuels School of Science Westlake University Hangzhou 310024 China
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46
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Zhao Y, Li F, Li W, Li Y, Liu C, Zhao Z, Shan Y, Ji Y, Sun L. Identification of M-NH 2 -NH 2 Intermediate and Rate Determining Step for Nitrogen Reduction with Bioinspired Sulfur-Bonded FeW Catalyst. Angew Chem Int Ed Engl 2021; 60:20331-20341. [PMID: 34245082 PMCID: PMC8456964 DOI: 10.1002/anie.202104918] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Indexed: 11/25/2022]
Abstract
The multimetallic sulfur-framework catalytic site of biological nitrogenases allows the efficient conversion of dinitrogen (N2 ) to ammonia (NH3 ) under ambient conditions. Inspired by biological nitrogenases, a bimetallic sulfide material (FeWSx @FeWO4 ) was synthesized as a highly efficient N2 reduction (NRR) catalyst by sulfur substitution of the surface of FeWO4 nanoparticles. Thus prepared FeWSx @FeWO4 catalysts exhibit a relatively high NH3 production rate of 30.2 ug h-1 mg-1cat and a Faraday efficiency of 16.4 % at -0.45 V versus a reversible hydrogen electrode in a flow cell; these results have been confirmed via purified 15 N2 -isotopic labeling experiments. In situ Raman spectra and hydrazine reduction kinetics analysis revealed that the reduction of undissociated hydrazine intermediates (M-NH2 -NH2 ) on the surface of the bimetallic sulfide catalyst is the rate-determing step for the NRR process. Therefore, this work can provide guidance for elucidating the structure-activity relationship of NRR catalysts.
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Affiliation(s)
- Yilong Zhao
- State Key Laboratory of Fine ChemicalsInstitute of Artificial PhotosynthesisDUT-KTH Joint Education and Research Centre on Molecular DevicesDalian University of TechnologyDalian116024P. R. China
| | - Fusheng Li
- State Key Laboratory of Fine ChemicalsInstitute of Artificial PhotosynthesisDUT-KTH Joint Education and Research Centre on Molecular DevicesDalian University of TechnologyDalian116024P. R. China
| | - Wenlong Li
- State Key Laboratory of Fine ChemicalsInstitute of Artificial PhotosynthesisDUT-KTH Joint Education and Research Centre on Molecular DevicesDalian University of TechnologyDalian116024P. R. China
| | - Yingzheng Li
- State Key Laboratory of Fine ChemicalsInstitute of Artificial PhotosynthesisDUT-KTH Joint Education and Research Centre on Molecular DevicesDalian University of TechnologyDalian116024P. R. China
| | - Chang Liu
- State Key Laboratory of Fine ChemicalsInstitute of Artificial PhotosynthesisDUT-KTH Joint Education and Research Centre on Molecular DevicesDalian University of TechnologyDalian116024P. R. China
| | - Ziqi Zhao
- State Key Laboratory of Fine ChemicalsInstitute of Artificial PhotosynthesisDUT-KTH Joint Education and Research Centre on Molecular DevicesDalian University of TechnologyDalian116024P. R. China
| | - Yu Shan
- State Key Laboratory of Fine ChemicalsInstitute of Artificial PhotosynthesisDUT-KTH Joint Education and Research Centre on Molecular DevicesDalian University of TechnologyDalian116024P. R. China
| | - Yongfei Ji
- School of Chemistry and Chemical EngineeringGuangzhou UniversityGuangzhou510006China
| | - Licheng Sun
- State Key Laboratory of Fine ChemicalsInstitute of Artificial PhotosynthesisDUT-KTH Joint Education and Research Centre on Molecular DevicesDalian University of TechnologyDalian116024P. R. China
- Department of ChemistrySchool of Engineering Sciences in Chemistry, Biotechnology and HealthKTH Royal Institute of Technology10044StockholmSweden
- Center of Artificial Photosynthesis for Solar FuelsSchool of ScienceWestlake UniversityHangzhou310024China
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47
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Zhang W, Yu Y, Huang R, Shi X. Efficient Photocatalytic Reduction of CO 2 to CO Using NiFe 2O 4@N/C/SnO 2 Derived from FeNi Metal-Organic Framework. ACS APPLIED MATERIALS & INTERFACES 2021; 13:40571-40581. [PMID: 34410096 DOI: 10.1021/acsami.1c10147] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Use of light is considered an effective approach to convert CO2 into usable chemical energy. In the present study, an iron- and nickel-containing bimetallic metal-organic framework (MOF) was synthesized via a simple solvothermal route. SnO2 was then composited with the said MOF, and the obtained material was calcined and annealed to fabricate a series of nanophotocatalysts. The annealed sample displayed superior photocatalytic activity to the calcined sample, possibly due to the carbon-nitrogen layer formed after annealing mediating the charge-transfer process. The results of photocatalytic experiments indicated that using [Ru(bpy)3]Cl2·6H2O as a photosensitizer and triethanolamine (TEOA) and acetonitrile (MeCN) as sacrificial agents, the catalyst sample was annealed at 450 °C (NiFe2O4@N/C/SnO2-450) to afford the highest CO yield from CO2 (2057.41 μmol g-1 h-1). The increase in the photocatalytic ability of the nanocomposites is basically attributed to multiple synergistic effects between NiFe2O4 and SnO2, which reduce the recombination probability of the photo-induced electrons and holes. Ultimately, a photocatalytic reaction mechanism is proposed for NiFe2O4@N/C/SnO2 in the reduction of CO2.
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Affiliation(s)
- Wanxia Zhang
- Information Materials and Intelligent Sensing Laboratory of Anhui Province, Anhui Province Key Laboratory of Wetland Ecosystem Protection and Restoration, School of Resource and Environmental Engineering, Anhui University, Hefei 230601, China
| | - Ying Yu
- Institute of Intelligent Machines, Hefei Institute of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230026, China
| | - Ruting Huang
- Information Materials and Intelligent Sensing Laboratory of Anhui Province, Anhui Province Key Laboratory of Wetland Ecosystem Protection and Restoration, School of Resource and Environmental Engineering, Anhui University, Hefei 230601, China
| | - Xianyang Shi
- Information Materials and Intelligent Sensing Laboratory of Anhui Province, Anhui Province Key Laboratory of Wetland Ecosystem Protection and Restoration, School of Resource and Environmental Engineering, Anhui University, Hefei 230601, China
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48
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Du R, Chen P, Zhang Q, Yu G. The degradation of enrofloxacin by a non-metallic heptazine-based OCN polymer: Kinetics, mechanism and effect of water constituents. CHEMOSPHERE 2021; 273:128435. [PMID: 33268093 DOI: 10.1016/j.chemosphere.2020.128435] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 09/04/2020] [Accepted: 09/22/2020] [Indexed: 06/12/2023]
Abstract
Antibiotics are widespread in the environment with notable ecological risk, for which efficient and green removal technologies are demanded. As a kind of g-C3N4-based material with remarkable photocatalytic property, OCN is an oxygen- and nitrogen-linked carbon nitride organic polymer which can be synthesized through a single-step thermal polymerization method. In this study, OCN was applied for the visible-light-driven photocatalytic degradation of a typical fluoroquinolone (FQ) antibiotics enrofloxacin (ENR). The photocatalysis process achieved over 97% ENR removal within 60 min with 0.4 mg/L OCN and 4 mg/L ENR at pH 8.2. The photocatalytic mechanism of OCN at different pH was studied for the first time. It was shown that O2⋅-, 1O2 and h+ made contributions at neutral or basic pH and 1O2 contributes the most (57.6% at pH 8.2), while ⋅OH played a role only under acidic condition with a contribution rate of 23.8% at pH 3.2. The cleavage of the piperazine ring and the quinolone ring were two main degradation pathways. The common water constituents humic acid and NO3- showed a dual effect, but HCO3- and Cl- inhibited the degradation. The effect of different water matrices was tested under natural sunlight and it was only a tiny disturbance to the degradation rates. The biotoxicity test conducted using Vibrio fischeri indicated that the toxicity of degradation products became negligible after 3 h. This study demonstrated that OCN is a promising candidate for the advanced treatment and in-situ remediation.
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Affiliation(s)
- Roujia Du
- School of Environment, State Key Joint Laboratory of Environmental Simulation and Pollution Control (SKLESPC), Beijing Key Laboratory for Emerging Organic Contaminants Control, Tsinghua University, Beijing, 100084, China
| | - Ping Chen
- School of Environment, State Key Joint Laboratory of Environmental Simulation and Pollution Control (SKLESPC), Beijing Key Laboratory for Emerging Organic Contaminants Control, Tsinghua University, Beijing, 100084, China; School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, China
| | - Qianxin Zhang
- School of Environment, State Key Joint Laboratory of Environmental Simulation and Pollution Control (SKLESPC), Beijing Key Laboratory for Emerging Organic Contaminants Control, Tsinghua University, Beijing, 100084, China
| | - Gang Yu
- School of Environment, State Key Joint Laboratory of Environmental Simulation and Pollution Control (SKLESPC), Beijing Key Laboratory for Emerging Organic Contaminants Control, Tsinghua University, Beijing, 100084, China.
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Zhao X, Yi X, Zhang J, Liu B, Yu S, Liu X. Z-scheme polyimide/tungsten trioxide aerogel photocatalyst for enhanced photocatalytic CO 2reduction under visible light. NANOTECHNOLOGY 2021; 32:315714. [PMID: 33853050 DOI: 10.1088/1361-6528/abf7ed] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 04/13/2021] [Indexed: 06/12/2023]
Abstract
Developing highly efficient and stable photocatalysts is an effective method to achieve CO2photocatalytic reduction. Herein, PI/WO3aerogel photocatalyst was prepared by chemical amide reaction coupled with an ethanol supercritical drying technique. The novel aerogel photocatalysts exhibit excellent photocatalytic performance for reducing CO2into CO. In particular, PI/WO3-10 aerogel photocatalyst shows the highest yield of CO (5.72μmol g-1h-1), which is ca 11-fold higher than that of the pristine PI aerogel. The high CO2reduction activity can be attributed to the Z-scheme structure, which enhances the separation of photo-generated electron-holes, and induces H2O oxidation on WO3nanosheets and CO2reduction on PI aerogel. The photocatalytic reaction mechanism of CO2when using PI/WO3aerogel photocatalyst is proposed.
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Affiliation(s)
- Xinfu Zhao
- Shandong Provincial Key Laboratory of Special Silicone-Containing Materials, Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, People's Republic of China
| | - Xibin Yi
- Shandong Provincial Key Laboratory of Special Silicone-Containing Materials, Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, People's Republic of China
| | - Jing Zhang
- Shandong Provincial Key Laboratory of Special Silicone-Containing Materials, Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, People's Republic of China
| | - Benxue Liu
- Shandong Provincial Key Laboratory of Special Silicone-Containing Materials, Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, People's Republic of China
| | - Shimo Yu
- Shandong Provincial Key Laboratory of Special Silicone-Containing Materials, Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, People's Republic of China
| | - Xiaochan Liu
- Shandong Provincial Key Laboratory of Special Silicone-Containing Materials, Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, People's Republic of China
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Que M, Cai W, Chen J, Zhu L, Yang Y. Recent advances in g-C 3N 4 composites within four types of heterojunctions for photocatalytic CO 2 reduction. NANOSCALE 2021; 13:6692-6712. [PMID: 33885474 DOI: 10.1039/d0nr09177d] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Studies of photocatalytic conversion of CO2 into hydrocarbon fuels, as a promising solution to alleviate global warming and energy issues, are booming in recent years. Researchers have focused their interest in developing g-C3N4 composite photocatalysts with intriguing features of robust light harvesting ability, excellent catalysis, and stable performance. Four types of heterojunctions (type-II, Z-scheme, S-scheme and Schottky) of the g-C3N4 composites are widely adopted. This review aims at presenting and comparing the photocatalytic mechanisms, characteristics, and performances of g-C3N4 composites concerning these four types of heterojunctions. Besides, perspectives and undergoing efforts for further development of g-C3N4 composite photocatalysts are discussed. This review would be helpful for researchers to gain a comprehensive understanding of the progress and future development trends of g-C3N4 composite heterojunctions for photocatalytic CO2 reduction.
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Affiliation(s)
- Meidan Que
- College of Materials Science and Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, P. R. China.
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