1
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Cui D, Yang X, Zhang T, Li M, Li F. Construction of Fe(III) Active Sites on Phenanthroline-Grafted g-C 3N 4: Reduced Work Function and Enhanced Intramolecular Charge Transfer for Efficient N 2 Photofixation. ACS APPLIED MATERIALS & INTERFACES 2024; 16:30040-30054. [PMID: 38813971 DOI: 10.1021/acsami.4c03370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2024]
Abstract
Photocatalytic nitrogen fixation is one of the important pathways for green and sustainable ammonia synthesis, but the extremely high bonding energy of the N≡N triple bond makes it difficult for conventional nitrogen fixation photocatalysts to directly activate and hydrogenate. Given this, we covalently grafted the phenanthroline unit onto graphitic carbon nitride nanosheets (CN) by the simple thermal oxidation method and complexed it with transition metal Fe3+ ions to obtain stable dispersed Fe active sites, which can significantly improve the photocatalytic activity. The Fe(III)-4-P-CN photocatalyst morphology consists of porous lamellar structures internally connected by nanowires. The special morphology of the catalysts gives them excellent nitrogen fixation performance, with an average NH3 yield of 492.9 μmol g-1 h-1, which is 6.5 times higher than that of the pristine CN, as well as better photocatalytic cycling stability. Comprehensive experiments and density-functional theory results show that Fe(III)-4-P-CN is more favorable than pristine CN for *N2 activation, effectively lowering the reaction energy barrier. Moreover, other byproducts (such as nitrate and H2O2) are also produced during the photocatalytic nitrogen fixation process, which also provides a new way for nitrogen-fixing photocatalysts to achieve multifunctional applications.
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Affiliation(s)
- Donghui Cui
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, College of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
| | - Xue Yang
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, College of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
| | - Tingting Zhang
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, College of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
| | - Meixi Li
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, College of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
| | - Fengyan Li
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, College of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
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2
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Shao W, Yu M, Xu X, Han X, Chen Y, Han J, Wu G, Xing W. Design of a Single-Atom In-N 3-S site to Modulate Exciton Behavior in Carbon Nitride for Enhanced Photocatalytic Performance. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2306567. [PMID: 38161262 DOI: 10.1002/smll.202306567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 12/05/2023] [Indexed: 01/03/2024]
Abstract
Rational tailoring of the local coordination environment of single atoms has demonstrated a significant impact on the electronic state and catalytic performance, but the development of catalysts beyond noble/transition metals is profoundly significant and highly desired. Herein, the main-group metal indium (In) single atom is immobilized on sulfur-doped porous carbon nitride nanosheets (In@CNS) in the form of three nitrogen atoms coordinated with one sulfur atom (In-N3-S). Both theoretical calculations and advanced characterization investigations clearly elucidated that the single-atomic In-N3-S structures on In@CNS are powerful in promoting the dissociation of excitons into more free carriers as well as the charge separation, synergistically elevating electron concentration by 2.19 times with respect to pristine CNS. Meanwhile, the loading of In single atoms on CNS is responsible for altering electronic structure and lowering the Gibbs free energy for hydrogen adsorption. Consequently, the optimized In@CNS-5.0 exhibited remarkable photocatalytic performance, remarkable water-splitting and tetracycline hydrochloride degradation. The H2 production achieved to 10.11 mmol h-1g-1 with a notable apparent quantum yield of 19.70% at 400 nm and remained at 10.40% at 420 nm. These findings open a new perspective for in-depth comprehending the effect of the main-group metal single-atom coordination environment on promoting photocatalytic performance.
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Affiliation(s)
- Weifan Shao
- College of Ecology and Environment, Co-Innovation Center for the Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037, China
| | - Mengjiao Yu
- College of Ecology and Environment, Co-Innovation Center for the Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037, China
| | - Xusheng Xu
- College of Ecology and Environment, Co-Innovation Center for the Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037, China
| | - Xinrui Han
- College of Ecology and Environment, Co-Innovation Center for the Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037, China
| | - Yuwen Chen
- College of Ecology and Environment, Co-Innovation Center for the Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037, China
| | - Jiangang Han
- College of Ecology and Environment, Co-Innovation Center for the Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037, China
- National Positioning Observation Station of Hung-tse Lake Wetland Ecosystem in Jiangsu Province, Hongze, 223100, China
| | - Guangyu Wu
- College of Ecology and Environment, Co-Innovation Center for the Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037, China
- National Positioning Observation Station of Hung-tse Lake Wetland Ecosystem in Jiangsu Province, Hongze, 223100, China
| | - Weinan Xing
- College of Ecology and Environment, Co-Innovation Center for the Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037, China
- National Positioning Observation Station of Hung-tse Lake Wetland Ecosystem in Jiangsu Province, Hongze, 223100, China
- The Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Normal University, Wuhu, 241000, China
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3
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Khan AU, Ramzan M, Alanazi SJF, Al-Mohaimeed AM, Ali S, Imran M, Majid MA, Sarfraz MH. Structural, Optical, Electrical and Photocatalytic Investigation of n-Type Zn 2+-Doped α-Bi 2O 3 Nanoparticles for Optoelectronics Applications. ACS OMEGA 2024; 9:22650-22659. [PMID: 38826554 PMCID: PMC11137735 DOI: 10.1021/acsomega.3c10521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 02/20/2024] [Accepted: 05/10/2024] [Indexed: 06/04/2024]
Abstract
Herein, n-type pure and Zn2+-doped monoclinic bismuth oxide nanoparticles were synthesized by the citrate sol-gel method. X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), photoluminescence (PL) analysis, ultraviolet-visible (UV-vis) spectroscopy, and Hall effect measurements were used to study the effect of Zn2+ on the structural, optical, and electrical properties of nanoparticles. XRD revealed the monoclinic stable phase (α-Bi2O3) of all synthesized samples and the crystallite size of nanoparticles increased with increasing concentration of dopant. Optical analysis illustrated the red shift of absorption edge and blue shift of band gap with increasing concentration of dopant. Hall Effect measurements showed improved values (2.79 × 10-5 S cm-1 and 6.89 cm2/V·s) of conductivity and mobility, respectively, for Zn2+-doped α-Bi2O3 nanoparticles. The tuned optical band gap and improved electrical properties make Zn2+-doped α-Bi2O3 nanostructures promising candidates for optoelectronic devices. The degradation of methylene blue (MB, organic dye) in pure and zinc-doped α-Bi2O3 was investigated under solar irradiation. The optimum doping level of zinc (4.5% Zn2+-doped α-Bi2O3) reveals the attractive photocatalytic activity of α-Bi2O3 nanostructures due to electron trapping and detrapping for solar cells.
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Affiliation(s)
- Asad ur
Rehman Khan
- Institute
of Physics, Baghdad ul Jadeed Campus, The
Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Muhammad Ramzan
- Institute
of Physics, Baghdad ul Jadeed Campus, The
Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Seham J. F. Alanazi
- Department
of Chemistry, College of Science, King Saud
University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
| | - Amal M. Al-Mohaimeed
- Department
of Chemistry, College of Science, King Saud
University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
| | - Shahzaib Ali
- Department
of Physics, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Muhammad Imran
- Department
of Electronics, Government College University
Lahore, Lahore 54000, Pakistan
| | - Muhammad Abdul Majid
- Institute
of Physics, Baghdad ul Jadeed Campus, The
Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Muhammad Hassan Sarfraz
- Botnar
Institute of Musculoskeletal Sciences, Nuffield Department of Orthopaedics,
Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford OX3 7LD, U.K.
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Hassan F, Backer SN, Almanassra IW, Ali Atieh M, Elbahri M, Shanableh A. Solar-matched S-scheme ZnO/g-C 3N 4 for visible light-driven paracetamol degradation. Sci Rep 2024; 14:12220. [PMID: 38806502 DOI: 10.1038/s41598-024-60306-0] [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: 11/21/2023] [Accepted: 04/21/2024] [Indexed: 05/30/2024] Open
Abstract
In pursuit of an efficient visible light driven photocatalyst for paracetamol degradation in wastewater, we have fabricated the ZnO/g-C3N4 S-Scheme photocatalysts and explored the optimal percentage to form a composite of graphitic carbon nitride (g-C3N4) with zinc oxide (ZnO) for enhanced performance. Our study aimed to address the urgent need for a catalyst capable of environmentally friendly degradation of paracetamol, a common pharmaceutical pollutant, using visible light conditions. Here, we tailored the band gap of a photocatalyst to match solar radiation as a transformative advancement in environmental catalysis. Notably, the optimized composite, containing 10 wt.% g-C3N4 with ZnO, demonstrated outstanding paracetamol degradation efficiency of 95% within a mere 60-min exposure to visible light. This marked enhancement represented a 2.24-fold increase in the reaction rate compared to lower wt. percentage composites (3 wt.% g-C3N4) and pristine g-C3N4. The exceptional photocatalytic activity of the optimized composite can be attributed to the band gap narrowing that closely matched the maximum solar radiation spectrum. This, coupled with efficient charge transfer mechanisms through S-scheme heterojunction formation and an abundance of active sites due to increased surface area and reduced particle size, contributed to the remarkable performance. Trapping experiments identified hydroxyl radicals as the primary reactive species responsible for paracetamol photoreduction. Furthermore, the synthesized ZnO/g-C3N4 composite exhibited exceptional photostability and reusability, underscoring its practical applicability. Thus, this research marks a significant stride towards the development of an effective and sustainable visible light photocatalyst for the removal of pharmaceutical contaminants from aquatic environments.
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Affiliation(s)
- Fahad Hassan
- Research Institute of Sciences and Engineering, University of Sharjah, Sharjah, 27272, UAE.
| | | | - Ismail W Almanassra
- Research Institute of Sciences and Engineering, University of Sharjah, Sharjah, 27272, UAE
| | - Muataz Ali Atieh
- Research Institute of Sciences and Engineering, University of Sharjah, Sharjah, 27272, UAE
- Chemical and Water Desalination Engineering Program, College of Engineering, University of Sharjah, Sharjah, 27272, UAE
| | - Mady Elbahri
- Nanochemistry and Nanoengineering, Department of Chemistry and Materials Science, School of Chemical Engineering, Aalto University, 02150, Espoo, Finland.
| | - Abdallah Shanableh
- Research Institute of Sciences and Engineering, University of Sharjah, Sharjah, 27272, UAE.
- Department of Civil and Environmental Engineering, College of Engineering, University of Sharjah, Sharjah, 27272, UAE.
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5
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Facile fabrication of graphitic carbon nitride by solvothermal method with hierarchical structure and high visible light photocatalytic activity. J Taiwan Inst Chem Eng 2023. [DOI: 10.1016/j.jtice.2023.104773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
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6
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Guo W, Wang S, Hao H, Kong X, Yan H, Zhu H, Li Y, Zhou H, Zhong D, Dai F. Introducing anthracene and amino groups into Ln-OFs for the photoreduction of Cr( vi) without additional photosensitizers or cocatalysts. Inorg Chem Front 2023. [DOI: 10.1039/d3qi00102d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
Abstract
The stable LCUH-100 was designed and synthesized, by incorporating chromophores into lanthanide MOFs, as a high-efficiency photocatalyst, which can rapidly and efficiently reduce Cr(vi) under visible-light irradiation and has good cycle stability.
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Affiliation(s)
- Wenxiao Guo
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Pharmacy, School of Chemistry and Chemical Engineering, College of Materials Science and Engineering, and Dongchang College, Liaocheng University, Liaocheng 252059, China
| | - Shufang Wang
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Pharmacy, School of Chemistry and Chemical Engineering, College of Materials Science and Engineering, and Dongchang College, Liaocheng University, Liaocheng 252059, China
| | - Hongguo Hao
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Pharmacy, School of Chemistry and Chemical Engineering, College of Materials Science and Engineering, and Dongchang College, Liaocheng University, Liaocheng 252059, China
| | - Xiangjin Kong
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Pharmacy, School of Chemistry and Chemical Engineering, College of Materials Science and Engineering, and Dongchang College, Liaocheng University, Liaocheng 252059, China
| | - Hui Yan
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Pharmacy, School of Chemistry and Chemical Engineering, College of Materials Science and Engineering, and Dongchang College, Liaocheng University, Liaocheng 252059, China
| | - Hongjie Zhu
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Pharmacy, School of Chemistry and Chemical Engineering, College of Materials Science and Engineering, and Dongchang College, Liaocheng University, Liaocheng 252059, China
| | - Yunwu Li
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Pharmacy, School of Chemistry and Chemical Engineering, College of Materials Science and Engineering, and Dongchang College, Liaocheng University, Liaocheng 252059, China
| | - Huawei Zhou
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Pharmacy, School of Chemistry and Chemical Engineering, College of Materials Science and Engineering, and Dongchang College, Liaocheng University, Liaocheng 252059, China
| | - Dichang Zhong
- Institute for New Energy Materials and Low Carbon Technologies School of Materials Science and Engineering Tianjin University of Technology, Tianjin 300384, China
| | - Fangna Dai
- College of Science, School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao, Shandong 266580, China
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7
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Liu Y, Bian C, Li Y, Sun P, Xiao Y, Xiao X, Wang W, Dong X. Aminobenzaldehyde convelently modified graphitic carbon nitride photocatalyst through Schiff base reaction: Regulating electronic structure and improving visible-light-driven photocatalytic activity for moxifloxacin degradation. J Colloid Interface Sci 2023; 630:867-878. [DOI: 10.1016/j.jcis.2022.10.073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 10/12/2022] [Accepted: 10/16/2022] [Indexed: 11/06/2022]
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8
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Wudil Y, Ahmad U, Gondal M, Al-Osta MA, Almohammedi A, Said R, Hrahsheh F, Haruna K, Mohammed J. Tuning of Graphitic Carbon Nitride (g-C3N4) for Photocatalysis: A Critical Review. ARAB J CHEM 2023. [DOI: 10.1016/j.arabjc.2023.104542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
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9
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Defective WO3 nanoplates controllably decorated with MIL-101(Fe) nanoparticles to efficiently remove tetracycline hydrochloride by S-scheme mechanism. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121846] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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10
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Phasayavan W, Boochakiat S, Pluengphon P, Tantraviwat D, Inceesungvorn B. Tuning product selectivity in nitrobenzene reduction over a single Bi2MoO6 photocatalyst in one pot: Mechanisms and roles of reaction compositions. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.114099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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11
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Nisah K, Rahmi R, Ramli M, Idroes R, Alva S, Iqhrammullah M, Safitri E. Optimization of Castor Oil-Based Ion Selective Electrode (ISE) with Active Agent 1,10-Phenanthroline for Aqueous Pb 2+ Analysis. MEMBRANES 2022; 12:987. [PMID: 36295746 PMCID: PMC9611885 DOI: 10.3390/membranes12100987] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 09/28/2022] [Accepted: 10/05/2022] [Indexed: 06/16/2023]
Abstract
This research has successfully fabricated ion selective electrode (ISE) for Pb2+ using castor oil (Ricinus communis L.)-based polyurethane (PU) membrane with 1,10-phenanthroline as the active agent. The sensitivity of the Pb2+ ISE obtained is 27.25 mV/decade with a linear range of [Pb(NO3)2] of 10−10−10−5 M and a coefficient of determination (R2) of 0.959. The system response reaches stability after 25 s of measurement. The Pb2+ has a detection limit of 10−10 M and gives a stable response at pH 7−8 with a 15-day lifetime. The investigation of the selectivity of the ISE was performed using the mixed solution method with log Kij values of <1. The selectivity order of Pb2+ ISE against the foreign ions is Ag2+ > Ca2+ > K+ > Mg2+ > Cu2+ > Fe3+ > Cr3+> Zn2+ > Cd2+. The Pb2+ ISE shows acceptable reproducibility and repeatability with standard deviation values of 0.065 and 0.0079, respectively. Fourier transform infrared (FT-IR) spectra confirmed that 1,10-phenanthroline was responsible for the formation of the Pb2+ ion entrapment via complexation. Other characterizations (crystallinity, micro-surface morphology, and mechanical strength) suggest the degradation of the membrane structure integrity after the application. The analysis results of Pb levels using the Pb2+ ISE in artificial and wastewater samples were not significantly different from the atomic absorption spectroscopy (AAS) measurement.
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Affiliation(s)
- Khairun Nisah
- Graduate School of Mathematics and Applied Sciences, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
- Department of Chemistry, Faculty of Sciences and Technology, Universitas Islam Negeri Ar-Raniry, Banda Aceh 23111, Indonesia
| | - Rahmi Rahmi
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
| | - Muliadi Ramli
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
| | - Rinaldi Idroes
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
- Department of Pharmacy, Faculty of Mathematics and Natural Sciences, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
| | - Sagir Alva
- Mechanical Engineering Department, Faculty of Engineering, Universitas Mercu Buana, West Jakarta 11650, Indonesia
| | - Muhammad Iqhrammullah
- Department of Life Science and Chemistry, Jacobs University Bremen, 28759 Bremen, Germany
| | - Eka Safitri
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
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12
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Hamelian M, Varmira K, Karmakar B, Veisi H. Catalytic Reduction of 4-Nitrophenol Using Green Synthesized Silver and Gold Nanoparticles over Thyme Plant Extract. Catal Letters 2022. [DOI: 10.1007/s10562-022-04164-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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13
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Wang W, Zhao Y, Wang R. Preparation of Visible‐Light‐Driven Ag/BiVO
4
Photocatalysts and Their Performance for Cr(VI) Reduction. ChemistrySelect 2022. [DOI: 10.1002/slct.202201348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Wenqin Wang
- School of Chemistry and Chemical Engineering University of South China Hengyang 421001 P.R. China
| | - Yubao Zhao
- School of Chemistry and Chemical Engineering University of South China Hengyang 421001 P.R. China
| | - Ruibin Wang
- Hunan Key Laboratory for the Design and Application of Actinide Complexes University of South China Hengyang 421001 P.R. China
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14
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Li W, Qin L, Wang Z, Xu G, Zheng H, Zhou L, Chen Z. Efficient Porous Carbon Nitride/Ag3PO4 Photocatalyst for Selective Oxidation of Amines to Imines: Z-scheme Heterojunction and Interfacial Adsorption. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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15
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Covalent Modification of Iron Phthalocyanine into Skeleton of Graphitic Carbon Nitride and Its Visible-Light-Driven Photocatalytic Reduction of Nitroaromatic Compounds. Catalysts 2022. [DOI: 10.3390/catal12070752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
It is of great urgency to eliminate nitroaromatic compounds (NACs) in wastewater due to their high residue and toxicity. Photocatalysis reduction is considered to be an efficient technology for converting NACs to their corresponding aromatic amines. In this work, a visible-light-driven hybrid photocatalyst was synthesized by covalently doping Fe phthalocyanine (FePc) into graphitic carbon nitride skeleton. Compared to the pristine gCN, the optimized gCN-FePc-1 photocatalyst showed enhanced absorption in visible light region, which promoted photogenerated charge transfer and separation. Using p-nitrophenol (p-NP) as the model pollutant, the CN-FePc-1 effectively reduced it to p-aminophenol (p-AP), with the photocatalytic reaction rate being 18 and 3 times higher, respectively, than those of the pristine gCN and the mechanically mixed photocatalyst of gCN/FePc. Moreover, excellent photocatalytic universality for other NACs, high stability, and good reusability also were confirmed. Based on the band structure of the gCN-FePc-1 photocatalyst, a plausible mechanism was proposed to illustrate the photocatalytic reduction process of p-NP to p-AP. This study demonstrates that the covalent modification of FePc into gCN skeleton is an effective strategy to modulate the electronic structure, and the hybrid gCN-FePc is a potential visible-light-driven photocatalyst that potentially can be used for eliminating NAC contamination in wastewater.
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16
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Pei CY, Li T, Zhang M, Wang JW, Chang L, Xiong X, Chen W, Huang GB, Han DM. Synergistic effects of interface coupling and defect sites in WO3/InVO4 architectures for highly efficient nitrogen photofixation. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120875] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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17
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Solvent-Induced ZnIn2S4 Nanosheets Self-assembled Micro-Flowers to Boosting the Photocatalytic Semi-dehydrogenation of 1,2,3,4-Tetrahydroisoquinoline. Catal Letters 2022. [DOI: 10.1007/s10562-022-04002-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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18
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Yang L, Zhang Z, Zhang C, Li S, Liu G, Wang X. An excellent multifunctional photocatalyst cooperated by polyoxometalate-viologen framework for CEES oxidation, Cr(VI) reduction and dyes decolorization under different light regimes. Inorg Chem Front 2022. [DOI: 10.1039/d2qi00838f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Photocatalytic detoxification of highly toxic agents is a promising approach to protect ecological environment and human health, and the key problem lies in the development of novel efficient photocatalysts. Herein,...
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