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Lin J, Tian W, Zhang H, Sun H, Wang S. Electronic Structure and Functions of Carbon Nitride in Frontier Green Catalysis. Acc Chem Res 2024; 57:2303-2315. [PMID: 39107898 DOI: 10.1021/acs.accounts.4c00266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/21/2024]
Abstract
ConspectusGraphitic carbon nitride-based materials have emerged as promising photocatalysts for a variety of energy and environmental applications owing to their "earth-abundant" nature, structural versatility, tunable electronic and optical properties, and chemical stability. Optimizing carbon nitride's physicochemical properties encompasses a variety of approaches, including the regulation of inherent structural defects, morphology control, heterostructure construction, and heteroatom and metal-atom doping. These strategies are pivotal in ultimately enhancing their photocatalytic activities. Previous reviews with extensive examples have mainly focused on the synthesis, modification, and application of carbon nitride-based materials in photocatalysis. However, there has been a lack of straightforward and in-depth discussion to understand the electronic characteristics and functions of various engineered carbon nitrides as well as their precise tailoring strategies and ultimately to explain the regularity and specificity of their improved performance in targeted photocatalytic systems. In the past ten years, our group has conducted extensive investigations on carbon nitride-based materials and their application in photocatalysis. These studies demonstrate the close yet intricate relationship between the electronic structure of carbon nitride materials and their photocatalytic reactivity. Understanding the electronic structure and functions of carbon nitride, as well as different engineering strategies, is essential for the improvement of photocatalytic processes from fundamental study to practical applications.To this end, in this Account, we first delve into the nature of the electronic properties of carbon nitride, highlighting the electronic structures, including band structure, density of states, molecular orbitals, and band center, as well as its electronic functions, such as the charge distribution, internal electric field, and external electric force. Subsequently, based on recent research in our group, we present a detailed discussion of the strategic modifications of carbon nitride and the consequential impacts on the physicochemical properties, particularly the optical properties and intrinsic electronic characteristics, for enhancing the photocatalytic performance. These modifications are categorized as follows: (i) component changing, which involves intralayer and interface heterojunctions as well as homojunctions, to modulate the band-edge potentials and reactivity of photoinduced electrons and holes toward surface redox reactions; (ii) dimensional tuning, which engineers the dimensional structure of carbon nitride, to influence the electron transfer direction; (iii) defect and heteroatom modification, which introduces a symmetry break in the carbon nitride framework, to promote charge redistribution for altering the charge density and electronic structure; and (iv) anchoring of single-atom metals to facilitate orbital hybridization and charge transfer enhancement through the unique metal-N coordination configurations. Finally, we propose an appraisal of the prospects and challenges in the precise manipulation and characterization of the electronic structure and functions of carbon nitride. The integration of in situ electronic structure analysis, theoretical calculation based on machine learning, and precise mechanism study may propel its substantial development in the light-driven circular economy. We hope this Account aspires to offer novel insights and perspectives into the operational mechanisms and tailored structure of carbon nitride-based materials in photocatalysis.
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Affiliation(s)
- Jingkai Lin
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Wenjie Tian
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Huayang Zhang
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia
- Chair for Photonics and Optoelectronics, Nano-Institute Munich, Department of Physics, Ludwig-Maximilians-University Munich, 80539 Munich, Germany
| | - Hongqi Sun
- School of Molecular Sciences, Faculty of Science, The University of Western Australia, Perth, WA 6009, Australia
| | - Shaobin Wang
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia
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Alomayrah N, Ikram M, Zulfiqar S, Alomairy S, Al-Buriahi MS, Shakir I, Warsi MF, Cochran EW. Fabrication of a highly efficient CuO/ZnCo 2O 4/CNTs ternary composite for photocatalytic degradation of hazardous pollutants. RSC Adv 2024; 14:24874-24897. [PMID: 39119282 PMCID: PMC11308865 DOI: 10.1039/d4ra04395b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2024] [Accepted: 07/25/2024] [Indexed: 08/10/2024] Open
Abstract
In the current study, CuO, ZnCo2O4, CuO/ZnCo2O4, and CuO/ZnCo2O4/CNTs photocatalysts were prepared to remove crystal violet (CV) and colorless pollutants (diclofenac sodium and phenol) from wastewater. Herein, sol-gel and co-precipitation methods were used to synthesize CuO and ZnCo2O4, respectively. The sonication method was used to synthesize CuO/ZnCo2O4 and a CNTs-based composite (CuO/ZnCo2O4/CNTs). From the UV-Vis spectra of CuO, ZnCo2O4, CuO/ZnCo2O4, and CuO/ZnCo2O4/CNTs, the optical band gap value was calculated to be 2.11, 2.18, 1.71 and 1.63 eV respectively. The photocatalytic results revealed that CuO/ZnCo2O4/CNTs exhibited higher degradation of 87.7% against CV dye, 82% against diclofenac sodium, and 72% against phenol as compared to other prepared photocatalysts. The OH˙ radical is identified as the active species in the photocatalytic process over CuO/ZnCo2O4/CNTs. The impact of several parameters, such as pH, concentration, and catalyst dosage, has also been investigated. The better activity of the CNTs-based composite was due to the synergic effect of both CuO/ZnCo2O4 nanocomposite and carbon nanotubes. Therefore, the synthesized CuO/ZnCo2O4/CNTs photocatalyst has the potential to degrade organic wastewater effluents effectively.
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Affiliation(s)
- Norah Alomayrah
- Department of Physics, College of Science, Princess Nourah bint Abdulrahman University P. O. Box 84428 Riyadh 11671 Saudi Arabia
| | - Mustabshira Ikram
- Institute of Chemistry, Baghdad-ul-Jadeed Campus, The Islamia University of Bahawalpur Bahawalpur-63100 Pakistan
| | - Sonia Zulfiqar
- Department of Physical Sciences, Lander University 320 Stanley Ave Greenwood South Carolina 29649 USA
- Department of Chemical and Biological Engineering, Iowa State University Sweeney Hall, 618 Bissell Road Ames Iowa 50011 USA
- Department of Chemistry, Faculty of Science, University of Ostrava 30. Dubna 22 Ostrava 701 03 Czech Republic
| | - Sultan Alomairy
- Department of Physics, College of Science, Taif University Taif 21944 Saudi Arabia
| | | | - Imran Shakir
- Department of Physics, Faculty of Science, Islamic University of Madinah Madinah 42351 Saudi Arabia
| | - Muhammad Farooq Warsi
- Institute of Chemistry, Baghdad-ul-Jadeed Campus, The Islamia University of Bahawalpur Bahawalpur-63100 Pakistan
| | - Eric W Cochran
- Department of Chemical and Biological Engineering, Iowa State University Sweeney Hall, 618 Bissell Road Ames Iowa 50011 USA
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Khan I, Khan S, Al Alwan B, El Jery A, Shayan M, Ullah R, Ali S, Rizwan M, Khan A. Dimensionally Intact Construction of Ultrathin S-Scheme CuFe 2O 4/ZnIn 2S 4 Heterojunctional Photocatalysts for CO 2 Photoreduction. Inorg Chem 2024; 63:14004-14020. [PMID: 38873892 DOI: 10.1021/acs.inorgchem.4c01566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2024]
Abstract
The conversion of CO2 into carbon-neutral fuels such as methane (CH4) through selective photoreduction is highly sought after yet remains challenging due to the slow multistep proton-electron transfer processes and the formation of various C1 intermediates. This research highlights the cooperative interaction between Fe3+ and Cu2+ ions transitioning to Fe2+ and Cu+ ions, enhancing the photocatalytic conversion of CO2 to methane. We introduce an S-scheme heterojunction photocatalyst, CuFe2O4/ZnIn2S4, which demonstrates significant efficiency in CO2 methanation under light irradiation. The CuFe2O4/ZnIn2S4 heterojunction forms an internal electric field that aids in the mobility and separation of exciton carriers under a wide solar spectrum for exceptional photocatalytic performance. Remarkably, the optimal CuFe2O4/ZnIn2S4 heterojunction system achieved an approximately 68-time increase in CO2 conversion compared with ZnIn2S4 and CuFe2O4 nanoparticles using only pure water, with nearly complete CO selectivity and yields of CH4 and CO reaching 172.5 and 202.4 μmol g-1 h-1, respectively, via a 2-electron oxygen reduction reaction (ORR) process. The optimally designed CuFe2O4/ZnIn2S4 heterojunctional system achieved approximately 96% conversion of BA and 98.5% selectivity toward benzaldehyde (BAD). Additionally, this photocatalytic system demonstrated excellent cyclic stability and practical applicability. The photogenerated electrons in the CuFe2O4 conduction band enhance the reduction of Fe3+/Cu2+ to Fe2+/Cu+, creating a microenvironment conducive to CO2 reduction to CO and CH4. Simultaneously, the appearance of holes in the ZnIn2S4 valence band facilitates water oxidation to O2. The synergistic function within the CuFe2O4/ZnIn2S4 heterojunction plays a pivotal role in facilitating charge transfer, accelerating water oxidation, and thereby enhancing CO2 reduction kinetics. This study offers valuable insights and a strategic framework for designing efficient S-scheme heterojunctions aimed at achieving carbon neutrality through solar fuel production.
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Affiliation(s)
- Imran Khan
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces, College of Chemistry and Materials Science, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, China
- School of Physics and Electronics Central South University, Changsha 410083, P. R. China
| | - Salman Khan
- Key Laboratory of Functional Inorganic Materials Chemistry (Heilongjiang University), Ministry of Education, School of Chemistry and Materials Science, International Joint Research Center and Lab for Catalytic Technology, Harbin 150080, P. R. China
| | - Basem Al Alwan
- Department of Chemical Engineering, College of Engineering, King Khalid University, Abha 61411, Saudi Arabia
| | - Atef El Jery
- Department of Chemical Engineering, College of Engineering, King Khalid University, Abha 61411, Saudi Arabia
| | - Muhammad Shayan
- Department of Chemistry Abdul Wali Khan University, Mardan 23200, Khyber Pakhtunkhwa, Pakistan
| | - Rizwan Ullah
- University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
| | - Sharafat Ali
- University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
| | - Muhammad Rizwan
- School of Energy Science and Engineering, Central South University, Changsha 410083, China
| | - Afsar Khan
- School of minerals processing and bioengineering, Central South University, Changsha 410083, China
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Ghaware RC, Birajdar NB, Kamble GS, Kolekar SS. Degradation of organic Pollutant by Using of BiVO 4-NiFe 2O 4 Heterostructure Photocatalyst under Visible Light Irradiation: Assessment of Detoxicity Study Using Cirrhinus mrigala. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:14426-14439. [PMID: 38973670 DOI: 10.1021/acs.langmuir.4c01136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/09/2024]
Abstract
The current study mainly concentrates on the photocatalytic activity of composite nanomaterial of BiVO4 (BVO), NiFe2O4 (NFO), and BiVO4-NiFe2O4 (BVO-NFO) under visible light. Among these, BVO-NFO composite degrades crystal violet dye within 60 min with a percentage degradation of 95.65% under visible light illumination. The BVO-NFO composite exhibits better photodegradation performance, which can be attributed to the effective light absorption and reduced recombination of the photoexcited charge carriers. Additionally, by applying a magnetic field, the BVO-NFO composite can be magnetically recovered by using the magnet for subsequent recycling. The synthesized composite was characterized using optical techniques like X-ray diffraction, ultraviolet diffuse reflectance spectroscopy, scanning electron microscopy, Brunauer-Emmett-Teller, and energy dispersive X-ray analysis. The effect of dye, before and after degradation, on vital organs of fish species was examined such as fish gill (pulmonary-toxicity), fish liver (hepato-toxicity), fish kidney (renal toxicity), fish brain (neural toxicity), and fish muscle (myopathy). This work offers a clear and practical method for designing a highly crystalline semiconductor photocatalyst for dye degradation and the remediation of industrial wastewater.
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Affiliation(s)
- Rachana C Ghaware
- Analytical Chemistry and Material Science Research Laboratory, Department of Chemistry, Shivaji University, Kolhapur 416004, Maharashtra, India
| | - Nagesh B Birajdar
- Analytical Chemistry and Material Science Research Laboratory, Department of Chemistry, Shivaji University, Kolhapur 416004, Maharashtra, India
| | - Ganesh S Kamble
- Analytical Chemistry and Material Science Research Laboratory, Department of Chemistry, Shivaji University, Kolhapur 416004, Maharashtra, India
| | - Sanjay S Kolekar
- Analytical Chemistry and Material Science Research Laboratory, Department of Chemistry, Shivaji University, Kolhapur 416004, Maharashtra, India
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Zhang H, He Y, He M, Yang Q, Ding G, Mo Y, Deng Y, Gao P. Single-atom Mn-embedded carbon nitride as highly efficient peroxymonosulfate catalyst for the harmful algal blooms control. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 919:170915. [PMID: 38350561 DOI: 10.1016/j.scitotenv.2024.170915] [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: 10/16/2023] [Revised: 01/21/2024] [Accepted: 02/09/2024] [Indexed: 02/15/2024]
Abstract
In recent years, water quality deterioration caused by harmful algal blooms (HABs) has become one of the global drinking water safety issues, and sulfate radical driven heterogeneous advanced oxidation technology has been widely used for algae removal. However, the shortages of low active site exposure, metal leaching, and secondary contamination limit its further application. Therefore, the single-atom Mn anchored on inorganic carbon nitride was constructed to enhance the oxidation and coagulation of algal cells while maintaining cell integrity in this study. The removal efficiency of Microcystis aeruginosa was as high as 100 % within 30 min under the optimal conditions of 400 mg/L single-atom Mn-embedded g-C3N4 (SA-MCN) and 0.32 mM peroxymonosulfate (PMS). Importantly, the K+ release, malondialdehyde concentration, floccules morphology and variation of algal organic matters further showed that the algal cells still maintained high integrity without severe rupture during the catalytic reaction. Furthermore, the catalytic mechanisms of algae removal by moderate oxidation and simultaneous coagulation in this system were explored by quenching experiments, EPR analysis, theoretical calculation, and Zeta potential. In brief, this study highlighted the single-atom heterogeneous catalyst with high-efficiency and environmental-friendliness in harmful algal blooms control.
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Affiliation(s)
- Hangjun Zhang
- Hangzhou Normal University, Hangzhou 311121, China; Hangzhou International Urbanology Research Center and Center for Zhejiang Urban Governance Studies, Hangzhou 311121, China; Zhejiang Provincial Key Laboratory of Urban Wetlands and Regional Change, Hangzhou 311121, China
| | - Yunyi He
- Hangzhou Normal University, Hangzhou 311121, China
| | - Mengfan He
- Hangzhou Normal University, Hangzhou 311121, China
| | - Qiyue Yang
- Hangzhou Normal University, Hangzhou 311121, China
| | - Guoyi Ding
- Hangzhou Normal University, Hangzhou 311121, China
| | - Yuanshuai Mo
- Hangzhou Normal University, Hangzhou 311121, China
| | - Yang Deng
- Department of Earth and Environmental Studies, Montclair State University, Montclair, NJ 07043, USA
| | - Panpan Gao
- Hangzhou Normal University, Hangzhou 311121, China.
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Chen Q, Zhang Y, Xia H, Liu R, Wang H. Fabrication of two novel amino-functionalized and starch-coated CuFe 2O 4-modified magnetic biochar composites and their application in removing Pb 2+ and Cd 2+ from wastewater. Int J Biol Macromol 2024; 258:128973. [PMID: 38163509 DOI: 10.1016/j.ijbiomac.2023.128973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 12/02/2023] [Accepted: 12/20/2023] [Indexed: 01/03/2024]
Abstract
Novel magnetic biochar composites (SFeCu@SBCO and FeCu@SBCO-NH2) were fabricated by modifying oxidized sawdust biochar (SBCO) with Fe/Cu loading, starch-coating/amination, characterized (FTIR, XRD, BET, SEM-EDS and XPS) and applied in capturing Pb2+ and Cd2+ from wastewater. Adsorption experiments revealed that SFeCu@SBCO and FeCu@SBCO-NH2 exhibited extraordinary adsorption performance toward Pb2+/Cd2+ with the maximum adsorption capacity reaching 184.26/173.35 mg g-1 and 201.43/190.81 mg g-1, respectively, which were >5 times higher than those of SBC. The great increase in adsorption capacity of the two adsorbents was ascribed to the introduction of CuFe2O4 and starch/amino groups. Pb2+ and Cd2+ adsorption was an endothermic reaction controlled by monolayer chemisorption. Complexation and electrostatic attraction were the two predominant mechanisms. Besides, ion exchange together with physical adsorption also occurred during the adsorption. Additionally, the both adsorbents displayed favorable stability and reusability as well as desirable anti-interfering ability to other metal cations. Taken together, the both adsorbents could be utilized as reusable magnetic adsorbents with promising prospect in the effective remediation of Pb2+/Cd2+ contaminated water. The study not only contributed to the better understanding of biochar modification strategy and the application of modified biochar in heavy metals pollutants removal, but also realized resource utilization of biomass waste.
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Affiliation(s)
- Qian Chen
- School of Life and Environmental Sciences, School of Chemistry and Chemical Engineering, Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process, Shaoxing University, Shaoxing, 312000, Zhejiang, PR China
| | - Yaohong Zhang
- School of Life and Environmental Sciences, School of Chemistry and Chemical Engineering, Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process, Shaoxing University, Shaoxing, 312000, Zhejiang, PR China.
| | - Haixin Xia
- School of Life and Environmental Sciences, School of Chemistry and Chemical Engineering, Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process, Shaoxing University, Shaoxing, 312000, Zhejiang, PR China
| | - Renrong Liu
- School of Life and Environmental Sciences, School of Chemistry and Chemical Engineering, Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process, Shaoxing University, Shaoxing, 312000, Zhejiang, PR China
| | - Hai Wang
- School of Life and Environmental Sciences, School of Chemistry and Chemical Engineering, Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process, Shaoxing University, Shaoxing, 312000, Zhejiang, PR China.
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Gamboa-Savoy F, Onfray C, Hassan N, Salazar C, Thiam A. Enhanced catalytic reduction of emerging contaminant by using magnetic CuFe 2O 4@MIL-100(Fe) in Fenton-based electrochemical processes. CHEMOSPHERE 2023:139231. [PMID: 37354958 DOI: 10.1016/j.chemosphere.2023.139231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 06/09/2023] [Accepted: 06/13/2023] [Indexed: 06/26/2023]
Abstract
Fenton-based electrochemical processes (FEPs) using newly engineered 3D photocatalyst nanocomposites have garnered significant attention owing to their ability to remove emerging contaminants. Despite the development of numerous materials, there is still a need to enhance their efficiency, stability, and recyclability to address the limitations of FEPs. This study seeks to address this issue by investigating sustainable methods to engineer novel 3D core-shell photocatalyst composites for application in FEPs. These materials can update the photo-assisted PEFs activity, and magnetism can be helpful for the easy recyclability of the catalyst. Herein, we successfully synthesized a magnetic and photoactive CuFe2O4@MIL-100(Fe) (CM) composite through sustainable methods and assessed its morphological structure and physicochemical and photocatalytic properties. The catalytic performance of CM was investigated in an undivided RuO2/air-diffusion cell to treat Cefadroxil. The results show that heterogeneous photoelectro-Fenton (HPEF) (100% in 120 min) has higher degradation efficiency than electro-Fenton (100% in 210 min) and electrooxidation (73.3% in 300 min) processes. The superior degradation efficiency of HPEF is attributed to the formation of a large amount of hydroxyl radicals indicating the excellent photocatalytic activity of the material due to the direct excitation of the Fe-O cluster, which boosts the redox reaction of Fe2+/Fe3+. Key operational parameters such as pH, catalyst concentration, current density, and CuFe2O4 proportion on MIL-100(Fe) in the composite were optimized in the HPEF process. The optimized composite exhibited good stability and easy recyclability, allowing high removal efficiency, which can be kept up after five cycles of 90 min. High degradation performance was observed using natural sunlight radiations. Additionally, possible catalytic degradation mechanisms in HPEFs were proposed based on radical quenching experiments. This study has significant potential to contribute to the development of more sustainable and effective water treatment strategies.
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Affiliation(s)
- Felipe Gamboa-Savoy
- Facultad de Ciencias Naturales, Matemáticas y del Medioambiente, UTEM, Chile
| | - Christian Onfray
- Programa Institucional de Fomento a la I+D+i, Universidad Tecnológica Metropolitana, Chile
| | - Natalia Hassan
- Programa Institucional de Fomento a la I+D+i, Universidad Tecnológica Metropolitana, Chile; Millenium Nucleus in NanoBiophysics, Chile
| | - Claudio Salazar
- Centro de Investigación de Polímeros Avanzados, CIPA, Concepción, 4030000, Chile
| | - Abdoulaye Thiam
- Programa Institucional de Fomento a la I+D+i, Universidad Tecnológica Metropolitana, Chile.
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Yang Y, Guo C, Zeng Y, Luo Y, Xu J, Wang C. Peroxymonosulfate activation by CuFe-prussian blue analogues for the degradation of bisphenol S: Effect, mechanism, and pathway. CHEMOSPHERE 2023; 331:138748. [PMID: 37088209 DOI: 10.1016/j.chemosphere.2023.138748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 04/12/2023] [Accepted: 04/20/2023] [Indexed: 05/03/2023]
Abstract
The fenton-like process based on peroxymonosulfate (PMS) activation is considered as a promising strategy for the removal of organic pollutants. However, the development of efficient photocatalysts for PMS activation remains challenging. Herein, copper-iron prussian blue analogue (CunFe1-PBA, n = 1, 2, 3, 4) nanomaterials were first fabricated through a simple combination of co-precipitation and calcination processes. The as-synthesized CunFe1-PBA composite catalyst was used to activate PMS for the degradation of endocrine disruptor bisphenol S (BPS). As the result, Cu3Fe1-PBA calcined at 300 °C (Cu3Fe1-PBA*300 °C) mainly composed of CuFe2O4 and CuO showed a higher catalytic activity for activating PMS for BPS degradation than those of CunFe1-PBA composite. Additionally, Cu3Fe1-PBA*300 °C/PMS system was suitable for degradation of BPS at 400 mg/L catalyst or PMS and wide pH ranges from 3 to 11 while coexisting inorganic anions (SO42-, NO3-, and HCO3-) and humic acid all inhibited the reaction. Radical trapping experiment, electron paramagnetic resonance (EPR), and X-ray photoelectron spectroscopy (XPS) proved that Cu and Fe could regulate the charge balance through changes of valence state, and active PMS to produce free radicals effectively, especially the production of 1O2. Furthermore, the analysis of the BPS intermediates of degradation was carried out by ultra-performance liquid chromatography-mass spectrometry, and two degradation pathways of BPS were proposed. In summary, this work provides a facile avenue to design efficient catalysts to activate PMS for the degradation of emerging organic pollutants in water remediation.
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Affiliation(s)
- Youwei Yang
- Jiangxi Key Laboratory of Mining and Metallurgy Environmental Pollution Control, Ganzhou, 341000, China; School of Resources and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou, 341000, China; State Key Laboratory of Environmental Criteria and Risk Assessment, State Environmental Protection Key Laboratory of Ecological Effect and Risk Assessment of Chemicals, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Changsheng Guo
- State Key Laboratory of Environmental Criteria and Risk Assessment, State Environmental Protection Key Laboratory of Ecological Effect and Risk Assessment of Chemicals, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Yiting Zeng
- Jiangxi Key Laboratory of Mining and Metallurgy Environmental Pollution Control, Ganzhou, 341000, China; School of Resources and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou, 341000, China
| | - Yuxia Luo
- Jiangxi Key Laboratory of Mining and Metallurgy Environmental Pollution Control, Ganzhou, 341000, China; School of Resources and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou, 341000, China
| | - Jian Xu
- State Key Laboratory of Environmental Criteria and Risk Assessment, State Environmental Protection Key Laboratory of Ecological Effect and Risk Assessment of Chemicals, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Chunying Wang
- Jiangxi Key Laboratory of Mining and Metallurgy Environmental Pollution Control, Ganzhou, 341000, China; School of Resources and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou, 341000, China.
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Hassanzadeh S, Farhadi S, Moradifard F. Synthesis of magnetic graphene-like carbon nitride-cobalt ferrite (g-C 3N 4/CoFe 2O 4) nanocomposite for sonocatalytic remediation of toxic organic dyes. RSC Adv 2023; 13:10940-10955. [PMID: 37033431 PMCID: PMC10077340 DOI: 10.1039/d3ra00057e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 04/03/2023] [Indexed: 04/11/2023] Open
Abstract
A novel magnetic g-C3N4/CoFe2O4 nanocomposite was successfully synthesized by a simple hydrothermal method and applied as a new graphene-like carbon nitride-based sonocatalyst for sonodegradation of pollutant dyes. The as-prepared samples were characterized by using X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy, field-emission scanning electron microscopy (FE-SEM), energy-dispersive X-ray spectroscopy (EDX), transmission electron microscopy (TEM), vibrating sample magnetometry (VSM), X-ray photoelectron spectroscopy (XPS), UV-visible diffuse reflectance spectroscopy (DRS), BET surface area measurements and photoluminescence (PL) spectroscopy. The results indicate that the nanocomposite sample is composed of spherical CoFe2O4 nanoparticles adhered to g-C3N4 naosheets. The g-C3N4/CoFe2O4 nanocomposites were used as a new magnetically separable sonocatalyst in H2O2-assisted sonodegradation of methylene blue (MB), rhodamine B (RhB) and methyl orange (MO) dyes in aqueous media. The results showed complete degradation (ca. 100%) of dyes within short times (30-35 min). The sonocatalytic activity of graphitic carbon nitride (g-C3N4) was greatly enhanced with CoFe2O4 modification. Trapping experiments indicated that the g-C3N4/CoFe2O4 nanocomposites serves as a generator of hydroxyl radical (˙OH) via activation of H2O2 for degradation of dyes under ultrasound irradiation. Furthermore, the magnetic sonocatalyst can be separated from solution by an external magnet and reused several times without observable loss of activity. The possible mechanism of sonocatalytic activity was also proposed according to experimental results.
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Affiliation(s)
- Saeedeh Hassanzadeh
- Department of Chemistry, Lorestan University Khorramabad 68151-44316 Iran +986633120618 +986633120611
| | - Saeed Farhadi
- Department of Chemistry, Lorestan University Khorramabad 68151-44316 Iran +986633120618 +986633120611
| | - Farzaneh Moradifard
- Department of Chemistry, Lorestan University Khorramabad 68151-44316 Iran +986633120618 +986633120611
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10
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Fang L, Tang K, Wei D, Zhang Y, Zhou Y. Photocatalytic degradation of norfloxacin by magnetic molecularly imprinted polymers: influencing factors and mechanisms. ENVIRONMENTAL TECHNOLOGY 2023; 44:1438-1449. [PMID: 34738505 DOI: 10.1080/09593330.2021.2003442] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 10/30/2021] [Indexed: 06/13/2023]
Abstract
Novel magnetic molecularly imprinted polymers (MMIP) were prepared for selective removal of norfloxacin by effectively utilizing photocatalytic degradation and magnetic separation techniques. The imprinted material with titanium layer and multihole surface showed an excellent photocatalytic property. In this paper, the kinetics of photocatalytic degradation of norfloxacin by MMIP was explored, and the influences of environmental factors, including solution pH, humic acid, common ions and water media on photocatalytic performance of MMIP were elucidated. The results showed that MMIP had good adaptability and could degrade norfloxacin within 60 min, but the degradation rate constant decreased in surface water. Based on the identification of intermediate products, the possible degradation pathways of norfloxacin were analysed, speculating that it might be degraded into small molecules in the form of de-piperazine ring, de-carboxyl group and de-fluorine. Moreover, the mineralization ratio of norfloxacin could reach 84.2% after ultraviolet irradiation for 150 min, and the low cobalt release of MMIP enhanced the security of the material. The results of adsorption and degradation cycle tests showed that MMIP obtained by molecular imprinting technology had excellent performance in sustainable use for micro organic pollutants removal.
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Affiliation(s)
- Lei Fang
- Key Laboratory of Drinking Water Safety and Distribution Technology of Zhejiang Province, College of Civil Engineering and Architecture, Zhejiang University, Hangzhou, People's Republic of China
| | - Kaijie Tang
- Key Laboratory of Drinking Water Safety and Distribution Technology of Zhejiang Province, College of Civil Engineering and Architecture, Zhejiang University, Hangzhou, People's Republic of China
| | - Dong Wei
- Key Laboratory of Drinking Water Safety and Distribution Technology of Zhejiang Province, College of Civil Engineering and Architecture, Zhejiang University, Hangzhou, People's Republic of China
| | - Yan Zhang
- Key Laboratory of Drinking Water Safety and Distribution Technology of Zhejiang Province, College of Civil Engineering and Architecture, Zhejiang University, Hangzhou, People's Republic of China
| | - Yongchao Zhou
- Key Laboratory of Drinking Water Safety and Distribution Technology of Zhejiang Province, College of Civil Engineering and Architecture, Zhejiang University, Hangzhou, People's Republic of China
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11
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Zhang X, Liu W, Gao T, Cao D, Che X, Zhou S, Shang J, Cheng X. A novel iron molybdate photocatalyst with heterojunction-like band gap structure for organic pollutant degradation by activation of persulfate under simulated sunlight irradiation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:53157-53176. [PMID: 36853542 DOI: 10.1007/s11356-023-26056-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 02/17/2023] [Indexed: 06/18/2023]
Abstract
Advanced oxidation processes (AOPs) applied to wastewater treatment have become increasingly well developed and the ability of a single technology to remove difficult organic pollutants is limited. One of the main limiting factors is the insufficient variety and quantity of active species generated during the reaction process and catalyst failure. The coupling of the two methods is a practical and effective approach. In this study, different types of semiconductor persulfate (PS) activators, iron molybdate nanoparticles (I-FeMoO4, II-FeMoO4, and III-FeMoO4), were synthesized by simple solvothermal and calcination methods and applied to photo-assisted activation of PS systems. In addition, the relationship between the intrinsic physicochemical and optoelectronic properties of FeMoO4 and the catalytic degradation performance was revealed by a series of characterization tools, and the dominant catalysts were screened. At an unadjusted pH of 4.86, 0.6 g L-1 of PS and 0.4 g L-1 of I-FeMoO4 could achieve efficient degradation of several difficult organic dye contaminants (rhodamine b (Rh B), methylene blue (MB), malachite green (MG), methyl orange (MO), and tartrazine (TTZ)) and other antibiotic contaminants (sulfamethoxazole (SMX), tetracycline (TC), norfloxacin (NOR), and carbamazepine (CBZ)) within 5-60 min. Possible degradation mechanisms in the I-FeMoO4/PS/Light reaction system were suggested by radical trapping experiments and electron paramagnetic resonance (EPR) tests. Recovery tests demonstrated that I-FeMoO4 has good recoverable stability and did not cause secondary pollution. Finally, our study provided a new perspective on the application of coupled wastewater treatment technologies in the practical treatment of organic wastewater.
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Affiliation(s)
- Xinyi Zhang
- Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, People's Republic of China
| | - Weibao Liu
- Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, People's Republic of China
| | - Tianyue Gao
- Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, People's Republic of China
| | - Dongran Cao
- Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, People's Republic of China
| | - Xinrong Che
- Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, People's Republic of China
| | - Shengwen Zhou
- Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, People's Republic of China
| | - Jiangwei Shang
- Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, People's Republic of China
- Key Laboratory of Pollutant Chemistry and Environmental Treatment, College of Chemistry and Environmental Science, Yili Normal University, Yining, 835000, People's Republic of China
| | - Xiuwen Cheng
- Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, People's Republic of China.
- Key Laboratory of Pollutant Chemistry and Environmental Treatment, College of Chemistry and Environmental Science, Yili Normal University, Yining, 835000, People's Republic of China.
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12
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Kusuma K, Manju M, Ravikumar C, Raghavendra N, Naveen Kumar T, Anilkumar M, Nagaswarupa H, Shashi Shekhar T, Ananda Murthy H, Aravind K. Synthesis of strontium oxide nanoparticlesby probe sonication method: Its photocatalytic activity and electrochemical sensor studies. SENSORS INTERNATIONAL 2023. [DOI: 10.1016/j.sintl.2023.100231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/17/2023] Open
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13
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Photocatalytic degradation of Indigo Carmine using aluminum-doped titanium dioxide/zinc ferrite nanocomposite under visible light. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2023. [DOI: 10.1007/s13738-022-02671-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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14
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Sánchez-Montes I, Carneiro Doerenkamp J, Núñez-de la Rosa Y, Hammer P, Rocha-Filho RC, Aquino JM. Effective Fenton-like degradation of the tebuthiuron herbicide by ferrocene functionalized g-C3N4. J Photochem Photobiol A Chem 2023. [DOI: 10.1016/j.jphotochem.2022.114276] [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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15
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Alzahrani KA, Ismail AA. Enhanced photocatalytic performances of highly efficient perovskite BaSnO3 nanorods decorated by CuMn2O4 nanoparticles. J Photochem Photobiol A Chem 2023. [DOI: 10.1016/j.jphotochem.2022.114298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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16
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Sharma S, Jakhar P, Sharma H.
CuFe
2
O
4
nanomaterials: Current discoveries in synthesis, catalytic efficiency in coupling reactions, and their environmental applications. J CHIN CHEM SOC-TAIP 2023. [DOI: 10.1002/jccs.202200519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Shaily Sharma
- Microwave Chemistry Lab, Department of Chemistry UCOS, Mohanlal Sukhadia University Udaipur India
| | - Prakash Jakhar
- Microwave Chemistry Lab, Department of Chemistry UCOS, Mohanlal Sukhadia University Udaipur India
| | - Himanshu Sharma
- Microwave Chemistry Lab, Department of Chemistry UCOS, Mohanlal Sukhadia University Udaipur India
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17
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Degradation of lomefloxacin by MoS 2/MIL-53(Fe, Cu) catalyst in heterogeneous electro-Fenton process. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:40534-40550. [PMID: 36622598 DOI: 10.1007/s11356-022-24999-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 12/22/2022] [Indexed: 01/10/2023]
Abstract
A novel heterogeneous catalyst named MoS2/MIL-53(Fe, Cu) (MMFC) was prepared by hydrothermal method and applied in a heterogeneous electro-Fenton (hetero-EF) system for lomefloxacin (LOM) degradation in this work. Under the optimal conditions of current density 3 mA/cm2, catalyst dosage 0.100 g/L, and initial pH 6, 93.5% LOM (2 mg/L) removal efficiency was achieved in the MMFC hetero-EF system within 60 min, indicating an obvious improvement compared with the MIL-53(Fe, Cu) hetero-EF system. The good catalytic activity was attributed to more effective active sites of the catalyst and the conversion of Fe(II)/Fe(III) and Cu(I)/Cu(II) promoted by Mo(IV) in MoS2, which could be inferred by scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS) characterizations. The reusability and stability of MMFC were explored based on five cyclic experiments, and the average degradation efficiency reached 73.9%. Furthermore, the hetero-EF system could achieve the total removal of moxifloxacin and tetracycline within 6 min and 40 min, respectively. Quenching experiments revealed that the hydroxyl radicals (·OH) were the main reactive radicals while superoxide radicals (·O2-) and singlet oxygen (1O2) played a certain part in LOM degradation. Finally, the possible mechanism of the hetero-EF process and LOM degradation pathways were proposed, including substitution, elimination, and cleavage of ring structures. Accounting for good catalytic performance, low preparation cost, and satisfactory versatility, the MMFC exhibited good potential to work as a hetero-EF catalyst for wastewater treatment.
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18
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Zhong W, Peng Q, Liu K, Zhang Y, Xing J. Al3+ doped CuFe2O4 efficiently activates peroxymonosulfate for long-term and stable degradation of tetracycline: synergistic and regulatory role of Al3+. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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19
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Xu J, Zhang Z, Hong J, Wang D, Fan G, Zhou J, Wang Y. Co-doped Fe 3O 4/α-FeOOH for highly efficient peroxymonosulfate activation to degrade trimethoprim: Occurrence of hybrid non-radical and radical pathways. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 325:116459. [PMID: 36244291 DOI: 10.1016/j.jenvman.2022.116459] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 09/26/2022] [Accepted: 10/04/2022] [Indexed: 06/16/2023]
Abstract
Trimethoprim (TMP), as a widely used chemotherapeutic antibiotic agent, has caused potential risks to the aquatic environment. In this study, magnetic Co-doped Fe3O4/α-FeOOH was fabricated by a facile one-step ageing method and used for activation of peroxymonosulfate (PMS) in TMP degradation. It was found that low catalyst (0.5 g/L) and PMS addition (0.2 mM) led to the high degradation efficiency of TMP (97.2%, kobs = 0.11211 min-1) over a wide range of pH. The oxidation of active radical (SO4·-) and non-radical singlet oxygen (1O2) co-acted on TMP degradation. Besides, PMS was activated through the cycles between Co(II)/Co(III) and Fe(II)/Fe(III). Fifteen degradation intermediates of TMP were identified by LC-MS, and three possible degradation pathways including hydroxylation, demethylation, and cleavage were proposed. The recovered catalysts exhibited high stability and reusability, maintaining 80% TMP removal efficiency with inappreciable metal leaching (0.012 mg/L of Co, 0.113 mg/L of Fe) after six cycles. Besides, the Co-Fe3O4/α-FeOOH/PMS system was highly tolerant to inorganic anions and actual water bodies (river water, lake water, tap water, and sewage plant effluent). Overall, this work provided a promising way to the potential application of Fe-based binary metal oxide for PMS activation.
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Affiliation(s)
- Junge Xu
- College of Civil Engineering, Fuzhou University, Fujian, 350116, China
| | - Ziwei Zhang
- College of Civil Engineering, Fuzhou University, Fujian, 350116, China
| | - Junxian Hong
- College of Civil Engineering, Fuzhou University, Fujian, 350116, China
| | - Dong Wang
- College of Civil Engineering, Fuzhou University, Fujian, 350116, China
| | - Gongduan Fan
- College of Civil Engineering, Fuzhou University, Fujian, 350116, China; State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fujian, 350002, China
| | - Jian Zhou
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, China
| | - Yingmu Wang
- College of Civil Engineering, Fuzhou University, Fujian, 350116, China.
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20
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Rouibah K, Akika FZ, Rouibah C, Boudermine HR, Douafer S, Boukerche S, Boukerche G, Benamira M. Solar photocatalytic degradation of Methyl Green on CuFe2O4/α Fe2O3 heterojunction. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.110361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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21
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Sun X, Huang L, Wang G, Feng H, Zhou S, Zhao R, Wang D, Li Z. Efficient degradation of tetracycline under the conditions of high-salt and coexisting substances by magnetic CuFe 2O 4/g-C 3N 4 photo-Fenton process. CHEMOSPHERE 2022; 308:136204. [PMID: 36037958 DOI: 10.1016/j.chemosphere.2022.136204] [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: 05/27/2022] [Revised: 07/16/2022] [Accepted: 08/23/2022] [Indexed: 06/15/2023]
Abstract
For the effective degradation of tetracycline (TC), a facilely prepared magnetic CuFe2O4/g-C3N4 (CFO/g) photocatalyst was successfully constructed. The structure, morphology, composition, optical, and magnetic properties of CFO/g were characterized. CFO/g demonstrated excellent photo-Fenton performance of TC in the presence of high-Cl-, NO3-, HCO3-, HPO42-, SO42- and humic acid. Ten cycles of experiments with the removal rate of TC only decreasing by 2.8% confirmed the stability and high activity of CFO/g. The dissolved concentrations of Fe and Cu ions were 0.013 and 0.009 mg L-1, respectively. Its excellent magnetic properties made CFO/g easier to be recycled than traditional catalysts. ·OH and O2·- were proposed to be the main active species in the photo-Fenton system. The CFO/g heterojunction enhanced the separation of photogenerated electron-hole pairs and visible light absorption range. Furthermore, the identification of intermediates suggested that TC degradation was classified into two pathways, and the most critical and rapid degradation was achieved within the first 30 min. The TC and its intermediates did not significantly inhibit the growth activity of Escherichia coli. This research provided a promising application of magnetic photocatalysts in wastewater treatment of pharmaceuticals and personal care products.
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Affiliation(s)
- Xiyu Sun
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, 73 Huanghe Road, Harbin, 150090, China
| | - Likun Huang
- School of Food Engineering, Harbin University of Commerce, Harbin, 150076, China
| | - Guangzhi Wang
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, 73 Huanghe Road, Harbin, 150090, China.
| | - Huanzhang Feng
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, 73 Huanghe Road, Harbin, 150090, China
| | - Simin Zhou
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, 73 Huanghe Road, Harbin, 150090, China
| | - Rui Zhao
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, 73 Huanghe Road, Harbin, 150090, China
| | - Dongdong Wang
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, 73 Huanghe Road, Harbin, 150090, China
| | - Zhe Li
- School of Food Engineering, Harbin University of Commerce, Harbin, 150076, China
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22
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Qiu S, Gou L, Cheng F, Zhang M, Guo M. Novel heterostructured metal doped MgFe 2O 4@g-C 3N 4 nanocomposites with superior photo-Fenton preformance for antibiotics removal: One-step synthesis and synergistic mechanism. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 321:115907. [PMID: 35998532 DOI: 10.1016/j.jenvman.2022.115907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 07/21/2022] [Accepted: 07/28/2022] [Indexed: 06/15/2023]
Abstract
A novel metal doped MgFe2O4@g-C3N4 (m-MF@CN) nanocomposite was synthesized by one-pot method using saprolite laterite nickel ore and urea as raw materials. The heterostructure was verified as an effective heterogeneous Fenton-like catalyst for degrading antibiotics including tetracycline, oxytetracycline and chlortetracycline hydrochloride, and the related catalytic mechanism was elaborated in detail. Under the optimum conditions, the m-MF@CN/H2O2/vis system exhibited superior photo-Fenton property (degradation efficiency of 93.15% within 30 min, TOC removal efficiency was as high as 60.54% within 120 min) and cycle stability for tetracycline removal. The combination of MgFe2O4 and g-C3N4 enhanced the absorption of visible light, and the energy level matched heterojunction promoted the separation of photogenerated electron-holes to accelerate the redox cycle of ≡Fe3+/≡Fe2+. Free radical quenching and electron spin resonance (ESR) analysis confirmed that O2- was the main active species, h+ and OH also played a synergistic role in the degrading reactions. Notably, a possible degradation pathway of tetracycline was proposed according to the intermediates produced in the reaction process. The one-step synthesized m-MF@CN nanocomposite catalysts possessed high catalytic performance, good stability and recoverability, which not only realized the high-value utilization of ore raw materials, but also provided a potential practical way for efficient treatment of antibiotic wastewater.
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Affiliation(s)
- Shuxing Qiu
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, PR China; State Key Laboratory of Advanced Metallurgy, School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing, 100083, PR China
| | - Lizheng Gou
- State Key Laboratory of Advanced Metallurgy, School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing, 100083, PR China
| | - Fangqin Cheng
- Institute of Resources and Environmental Engineering, Shanxi University, Taiyuan, 030006, China
| | - Mei Zhang
- State Key Laboratory of Advanced Metallurgy, School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing, 100083, PR China
| | - Min Guo
- State Key Laboratory of Advanced Metallurgy, School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing, 100083, PR China.
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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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24
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Pattanateeradetch A, Sakulthaew C, Angkaew A, Sutjarit S, Poompoung T, Lin YT, Harris CE, Comfort S, Chokejaroenrat C. Fabrication of Ternary Nanoparticles for Catalytic Ozonation to Treat Parabens: Mechanisms, Efficiency, and Effects on Ceratophyllum demersum L. and Eker Leiomyoma Tumor-3 Cells. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3573. [PMID: 36296763 PMCID: PMC9610848 DOI: 10.3390/nano12203573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 09/30/2022] [Accepted: 10/09/2022] [Indexed: 06/16/2023]
Abstract
The use of parabens in personal care products can result in their leakage into water bodies, especially in public swimming pools with insufficient water treatment. We found that ferrite-based nanomaterials could catalytically enhance ozone efficiency through the production of reactive oxygen species. Our objective was to develop a catalytic ozonation system using ternary nanocomposites that could minimize the ozone supply while ensuring the treated water was acceptable for disposal into the environment. A ternary CuFe2O4/CuO/Fe2O3 nanocomposite (CF) delivered excellent degradation performance in catalytic ozonation systems for butylparaben (BP). By calcining with melamine, we obtained the CF/g-C3N4 (CFM) nanocomposite, which had excellent magnetic separation properties with slightly lower degradation efficiency than CF, due to possible self-agglomeration that reduced its electron capture ability. The presence of other constituent ions in synthetic wastewater and actual discharge water resulted in varying degradation rates due to the formation of secondary active radicals. 1O2 and •O2− were the main dominant reactive species for BP degradation, which originated from the O3 adsorption that occurs on the CF≡Cu(I)−OH and CF≡Fe(III)−OH surface, and from the reaction with •OH from indirect ozonation. Up to 50% of O3-treated water resulted in >80% ELT3 cell viability, the presence of well-adhered cells, and no effect on the young tip of Ceratophyllum demersum L. Overall, our results demonstrated that both materials could be potential catalysts for ozonation because of their excellent degrading performance and, consequently, their non-toxic by-products.
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Affiliation(s)
- Apiladda Pattanateeradetch
- Department of Environmental Technology and Management, Faculty of Environment, Kasetsart University, Bangkok 10900, Thailand
| | - Chainarong Sakulthaew
- Department of Veterinary Technology, Faculty of Veterinary Technology, Kasetsart University, Bangkok 10900, Thailand
| | - Athaphon Angkaew
- Department of Environmental Technology and Management, Faculty of Environment, Kasetsart University, Bangkok 10900, Thailand
| | - Samak Sutjarit
- Department of Veterinary Technology, Faculty of Veterinary Technology, Kasetsart University, Bangkok 10900, Thailand
| | - Thapanee Poompoung
- Department of Veterinary Technology, Faculty of Veterinary Technology, Kasetsart University, Bangkok 10900, Thailand
| | - Yao-Tung Lin
- Department of Soil & Environmental Sciences, National Chung Hsing University, Taichung 402, Taiwan
| | - Clifford E. Harris
- Department of Chemistry and Biochemistry, Albion College, Albion, MI 49224, USA
| | - Steve Comfort
- School of Natural Resources, University of Nebraska-Lincoln, Lincoln, NE 68583, USA
| | - Chanat Chokejaroenrat
- Department of Environmental Technology and Management, Faculty of Environment, Kasetsart University, Bangkok 10900, Thailand
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25
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Activation of Peracetic Acid with CuFe2O4 for Rhodamine B Degradation: Activation by Cu and the Contribution of Acetylperoxyl Radicals. Molecules 2022; 27:molecules27196385. [PMID: 36234920 PMCID: PMC9571141 DOI: 10.3390/molecules27196385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 09/16/2022] [Accepted: 09/22/2022] [Indexed: 12/01/2022] Open
Abstract
Advanced oxidation processes (AOPs) demonstrate great micropollutant degradation efficiency. In this study, CuFe2O4 was successfully used to activate peracetic acid (PAA) to remove Rhodamine B. Acetyl(per)oxyl radicals were the dominant species in this novel system. The addition of 2,4-hexadiene (2,4-HD) and Methanol (MeOH) significantly inhibited the degradation efficiency of Rhodamine B. The ≡Cu2+/≡Cu+ redox cycle dominated PAA activation, thereby producing organic radicals (R-O˙) including CH3C(O)O˙ and CH3C(O)OO˙, which accounted for the degradation of Rhodamine B. Increasing either the concentration of CuFe2O4 (0–100 mg/L) or PAA (10–100 mg/L) promoted the removal efficiency of this potent system. In addition, weakly acid to weakly alkali pH conditions (6–8) were suitable for pollutant removal. The addition of Humid acid (HA), HCO3−, and a small amount of Cl− (10–100 mmol·L−1) slightly inhibited the degradation of Rhodamine B. However, degradation was accelerated by the inclusion of high concentrations (200 mmol·L−1) of Cl−. After four iterations of catalyst recycling, the degradation efficiency remained stable and no additional functional group characteristic peaks were observed. Taking into consideration the reaction conditions, interfering substances, system stability, and pollutant-removal efficiency, the CuFe2O4/PAA system demonstrated great potential for the degradation of Rhodamine B.
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Saravanakumar K, Priya VS, Balakumar V, Prabavathi SL, Muthuraj V. Noble metal nanoparticles (M x = Ag, Au, Pd) decorated graphitic carbon nitride nanosheets for ultrafast catalytic reduction of anthropogenic pollutant, 4-nitrophenol. ENVIRONMENTAL RESEARCH 2022; 212:113185. [PMID: 35395238 DOI: 10.1016/j.envres.2022.113185] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 02/23/2022] [Accepted: 03/23/2022] [Indexed: 06/14/2023]
Abstract
We report an effective facile immobilization of noble nanoparticles (Mx = Ag, Au and Pd) assembled on g-C3N4 (g-CN) prepared via a simple ultra-sonication strategy. The Mx assembled g-CN nanocomposites were applied for the effective conversion of 4-nitrophenol (4-NP). As prepared nanocomposites were characterized by techniques of XRD, SEM-EDS, TEM, XPS, and FT-IR analysis to gain crystallographic structural, and morphological insights. The Pd@g-C3N4 (Pd@g-CN) nanocomposite exhibited best catalytic performance (kapp = 1.141 min-1) toward the conversion of 4-NP to 4-aminophenol (4-AP), almost 100% within 4 min using aqueous sodium borohydride (NaBH4). The higher catalytic efficiency of Pd@g-CN could be attributed to the surface electron density on the Pd and rapid electron transfer capacity. Interestingly, g-CN not only role as a stabilizer but also provided compatibility for noble metal deposition, which improves the chemical and morphological stability of noble metal nanoparticles. Different reaction parameters including concentrations of 4-NP, and catalyst amount were studied. These unique combinations make noble metal nanoparticles anchored g-CN nanosheets an ideal platform for catalysis applications and environmental remediation.
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Affiliation(s)
- Karunamoorthy Saravanakumar
- Department of Chemistry, V. H. N. Senthikumara Nadar College (Autonomous), Virudhunagar 626 001, Tamil Nadu, India; Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Republic of Korea.
| | | | - Vellaichamy Balakumar
- Department of Earth Resources Engineering, Faculty of Engineering, Kyushu University, 744 Motooka, Nishiku, Fukuoka, 819-0395, Japan
| | | | - Velluchamy Muthuraj
- Department of Chemistry, V. H. N. Senthikumara Nadar College (Autonomous), Virudhunagar 626 001, Tamil Nadu, India
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27
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Weidner E, Karbassiyazdi E, Altaee A, Jesionowski T, Ciesielczyk F. Hybrid Metal Oxide/Biochar Materials for Wastewater Treatment Technology: A Review. ACS OMEGA 2022; 7:27062-27078. [PMID: 35967031 PMCID: PMC9366942 DOI: 10.1021/acsomega.2c02909] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 07/21/2022] [Indexed: 05/27/2023]
Abstract
This paper discusses the properties of metal oxide/biochar systems for use in wastewater treatment. Titanium, zinc, and iron compounds are most often combined with biochar; therefore, combinations of their oxides with biochar are the focus of this review. The first part of this paper presents the most important information about biochar, including its advantages, disadvantages, and possible modification, emphasizing the incorporation of inorganic oxides into its structure. In the next four sections, systems of biochar combined with TiO2, ZnO, Fe3O4, and other metal oxides are discussed in detail. In the next to last section probable degradation mechanisms are discussed. Literature studies revealed that the dispersion of a metal oxide in a carbonaceous matrix causes the creation or enhancement of surface properties and catalytic or, in some cases, magnetic activity. Addition of metallic species into biochars increases their weight, facilitating their separation by enabling the sedimentation process and thus facilitating the recovery of the materials from the water medium after the purification process. Therefore, materials based on the combination of inorganic oxide and biochar reveal a wide range of possibilities for environmental applications in aquatic media purification.
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Affiliation(s)
- Ewelina Weidner
- Poznan
University of Technology, Faculty of Chemical
Technology, Institute of Chemical Technology and Engineering, Berdychowo 4, PL-60965 Poznan, Poland
| | - Elika Karbassiyazdi
- University
of Technology Sydney, School of Civil
and Environmental Engineering, Centre of Green Technology, 15 Broadway, Ultimo
NSW Sydney, New South Wales 2007, Australia
| | - Ali Altaee
- University
of Technology Sydney, School of Civil
and Environmental Engineering, Centre of Green Technology, 15 Broadway, Ultimo
NSW Sydney, New South Wales 2007, Australia
| | - Teofil Jesionowski
- Poznan
University of Technology, Faculty of Chemical
Technology, Institute of Chemical Technology and Engineering, Berdychowo 4, PL-60965 Poznan, Poland
| | - Filip Ciesielczyk
- Poznan
University of Technology, Faculty of Chemical
Technology, Institute of Chemical Technology and Engineering, Berdychowo 4, PL-60965 Poznan, Poland
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28
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Fu B, Sun H, Liu J, Zhou T, Chen M, Cai Z, Hao D, Zhu X. Construction of MIL-125-NH 2@BiVO 4 Composites for Efficient Photocatalytic Dye Degradation. ACS OMEGA 2022; 7:26201-26210. [PMID: 35936451 PMCID: PMC9352263 DOI: 10.1021/acsomega.2c01862] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Accepted: 06/30/2022] [Indexed: 05/15/2023]
Abstract
The design and construction of a photocatalyst with a heterostructure are a feasible and effective way to enhance the catalytic performance. Herein, a specially designed composite based on MIL-125-NH2 and BiVO4 was prepared and used for wastewater treatment. In the hybrid MIL-125-NH2@BiVO4, MIL-125-NH2 was uniformly dispersed on the BiVO4 surface. There is a high affinity between MIL-125-NH2 and BiVO4 due to the lattice defects. Under visible light irradiation, the catalytic activity of the as-prepared composite was evaluated by the degradation of various dyes such as malachite green, crystal violet, methylene blue, and Congo red. Nearly 98.7, 99.1, and 41.0% of the initial MG, MB and Cr(VI) were respectively removed over the optical sample of BVTN-5, demonstrating that the hybrid holds great promise for practical applications. Moreover, the composites can be recycled and reused with good stability after five consecutive cycles. The mechanism was proposed and discussed in detail. This work will shed light on the construction of MOF-based composites for efficient photocatalysis.
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Affiliation(s)
- Bo Fu
- College
of Chemical Engineering, Jiangsu Key Lab for the Chemistry & Utilization
of Agricultural and Forest Biomass, Nanjing
Forestry University, Nanjing 210037, People’s Republic
of China
| | - Huiwen Sun
- College
of Chemical Engineering, Jiangsu Key Lab for the Chemistry & Utilization
of Agricultural and Forest Biomass, Nanjing
Forestry University, Nanjing 210037, People’s Republic
of China
| | - Ju Liu
- College
of Chemical Engineering, Jiangsu Key Lab for the Chemistry & Utilization
of Agricultural and Forest Biomass, Nanjing
Forestry University, Nanjing 210037, People’s Republic
of China
| | - Tiantian Zhou
- College
of Chemical Engineering, Jiangsu Key Lab for the Chemistry & Utilization
of Agricultural and Forest Biomass, Nanjing
Forestry University, Nanjing 210037, People’s Republic
of China
| | - Muhua Chen
- College
of Chemical Engineering, Jiangsu Key Lab for the Chemistry & Utilization
of Agricultural and Forest Biomass, Nanjing
Forestry University, Nanjing 210037, People’s Republic
of China
| | - Zhengchun Cai
- College
of Chemical Engineering, Jiangsu Key Lab for the Chemistry & Utilization
of Agricultural and Forest Biomass, Nanjing
Forestry University, Nanjing 210037, People’s Republic
of China
| | - Dandan Hao
- School
of Chemistry and Chemical Engineering, Southeast
University, Nanjing 211189, Jiangsu, People’s
Republic of China
| | - Xinbao Zhu
- College
of Chemical Engineering, Jiangsu Key Lab for the Chemistry & Utilization
of Agricultural and Forest Biomass, Nanjing
Forestry University, Nanjing 210037, People’s Republic
of China
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29
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Khan J, Tahir K, Wei Y, Albalawi K, Latif S, Abdulaziz F, El-Zahhar AA, Abdu Musad Saleh E, Al-Shehri HS, Alghamdi MM. Preparation of Ca0.1Cu0.90Bi2O4 heterojunction with improved visible light photocatalytic performance of congo red: Kinetics and degradation mechanisms. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109607] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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30
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Acharya R, Pati S, Parida K. A review on visible light driven spinel ferrite-g-C3N4 photocatalytic systems with enhanced solar light utilization. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119105] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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31
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Hollow Nanospheres Organized by Ultra-Small CuFe2O4/C Subunits with Efficient Photo-Fenton-like Performance for Antibiotic Degradation and Cr(VI) Reduction. Catalysts 2022. [DOI: 10.3390/catal12070687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022] Open
Abstract
Hollow transition metal oxides have important applications in the degradation of organic pollutants by a photo-Fenton-like process. Herein, uniform, highly dispersible hollow CuFe2O4/C nanospheres (denoted as CFO/C-PNSs) were prepared by a one-pot approach. Scanning electron microscope (SEM) and transmission electron microscope (TEM) images verified that the CFO/C-PNS catalyst mainly presents hollow nanosphere morphology with a diameter of 250 ± 30 nm. Surprisingly, the photodegradation test results revealed that CFO/C-PNSs had an excellent photocatalytic performance in the elimination of various organic contaminants under visible light through the efficient Fenton catalytic process. Due to the unique hollow structure formed by the assembly of ultra-small CFO/C subunits, the catalyst exposes more reaction sites, improving its photocatalytic activity. More importantly, the resulting magnetically separable CFO/C-PNSs exhibited excellent stability. Finally, the possible photocatalytic reaction mechanism of the CFO/C-PNSs was proposed, which enables us to have a clearer understanding of the photo-Fenton mechanism. Through a series of characterization and analysis of degradation behavior of CFO/C-PNS samples over antibiotic degradation and Cr(VI) reduction, •OH radicals generated from H2O2 decomposition played an essential role in enhancing the reaction efficiency. The present work offered a convenient method to fabricate hollow transition metal oxides, which provided impetus for further development in environmental and energy applications. Highlights: Novel hollow CuFe2O4/C nanospheres were prepared by a facile and cost-effective method. CuFe2O4/C exhibited excellent photo-Fenton-like performance for antibiotic degradation. Outstanding photocatalytic performance was attributed to the specific hollow cavity-porous structure. A possible mechanism for H2O2 activation over hollow CuFe2O4/C nanospheres was detailed and discussed.
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32
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Luo J, Du X, Ye Q, Fu D. Review: Graphite Phase Carbon Nitride Photo-Fenton Catalyst and its Photocatalytic Degradation Performance for Organic Wastewater. CATALYSIS SURVEYS FROM ASIA 2022. [DOI: 10.1007/s10563-022-09363-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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33
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Type-II heterojunction-based magnetic ZnFe2O4@CuFe2O4@SiO2 photocatalyst for photodegradation of toxic dyes from wastewater. APPLIED NANOSCIENCE 2022. [DOI: 10.1007/s13204-022-02500-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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34
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Duan K, Que T, Koppala S, Balan R, Lokesh B, Pillai R, David S, Karthikeyan P, Ramamoorthy S, Lekshmi IC, Kemacheevakul P, Padmavathy N, Munusamy S. A facile route to synthesize n-SnO 2/p-CuFe 2O 4 to rapidly degrade toxic methylene blue dye under natural sunlight. RSC Adv 2022; 12:16544-16553. [PMID: 35754892 PMCID: PMC9169069 DOI: 10.1039/d2ra01690g] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 05/11/2022] [Indexed: 02/04/2023] Open
Abstract
In the present study, the n-SnO2/p-CuFe2O4 (p-CFO) complex was prepared by a two-step process. p-CFO synthesized by the molten salt method was coated with SnO2 synthesized by a facile in situ chemical precipitation method. The formation of n-SnO2/p-CFO was confirmed by powder X-ray diffraction (PXRD). Scanning electron microscopy (SEM) images showed that the sharp edges of uncoated pyramid-like p-CFO particles were covered by a thick layer of n-SnO2 on coated p-CFO particles. The complete absence of Cu and only 3 wt% Fe on the surface of the n–p complex observed in the elemental analysis using energy-dispersive X-ray spectroscopy (EDX) on the n–p complex confirmed the presence of a thick layer of SnO2 on the p-CFO surface. Diffuse reflectance spectroscopy (DRS) was employed to elucidate the bandgap engineering. The n-SnO2/p-CFO complex and p-CFO showed 87% and 58.7% methylene blue (MB) degradation in 120 min under sunlight, respectively. The efficiency of the n–p complex recovered after 5 cycles (73.5%) and was found to be higher than that of the uncoated p-CFO (58.7%). The magnetically separable property of the n–p complex was evaluated by using vibration sample magnetometry (VSM) measurements and it was confirmed that the prepared photocatalyst can be easily recovered using an external magnet. The study reveals that the prepared complex could be a potential candidate for efficient photodegradation of organic dyes under sunlight due to its efficient recovery and reusability owing to its magnetic properties. The synthesis of n-SnO2/p-CuFe2O4 to degrade toxic methylene blue dye under natural sunlight and its mechanism.![]()
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Affiliation(s)
- Kaijiao Duan
- School of Chemistry and Environment, Yunnan Minzu University Kunming 650505 Yunnan China
| | - Tingting Que
- School of Chemistry and Environment, Yunnan Minzu University Kunming 650505 Yunnan China
| | - Sivasankar Koppala
- Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences (SIMATS) Chennai 602105 Tamil Nadu India
| | - Ramdas Balan
- Department of Physics, CMR Institute of Technology Bengaluru 560037 Karnataka India
| | - Budigi Lokesh
- Department of Chemistry, MVJ College of Engineering Bengaluru 560067 Karnataka India
| | - Rahul Pillai
- CoE Materials Science/Sensors & Nanoelectronics, Department of Chemistry, CMR Institute of Technology Bengaluru 560037 Karnataka India.,VTU-Research Centre Affiliated to Visvesvaraya Technological University Belagavi 590018 Karnataka India
| | - Selvaraj David
- Department of Chemistry, Periyar University Salem 636011 Tamilnadu India
| | - Parasuraman Karthikeyan
- PG and Research Department of Chemistry, Pachaiyappas College, University of Madras Chennai 600030 Tamilnadu India
| | - Sangeetha Ramamoorthy
- CoE Materials Science/Sensors & Nanoelectronics, Department of Chemistry, CMR Institute of Technology Bengaluru 560037 Karnataka India.,VTU-Research Centre Affiliated to Visvesvaraya Technological University Belagavi 590018 Karnataka India
| | - I C Lekshmi
- CoE Materials Science/Sensors & Nanoelectronics, Department of Chemistry, CMR Institute of Technology Bengaluru 560037 Karnataka India
| | - Patiya Kemacheevakul
- Department of Environmental Engineering, Faculty of Engineering, King Mongkut's University of Technology Thonburi Bangkok 10140 Thailand
| | - Nagarajan Padmavathy
- Department of Materials Engineering, Indian Institute of Science Bengaluru 560012 India
| | - Sathishkumar Munusamy
- Department of Chemistry, Faculty of Science, Chulalongkorn University Pathumwan Bangkok 10330 Thailand
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35
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Pratibha, Rajput JK. Synergistically Enhanced Solar‐light Driven Degradation of Hazardous Food Colorants by Ultrasonically Derived MgFe
2
O
4
/S‐doped g‐C
3
N
4
Nanocomposite: A Z‐Scheme System Based Heterojunction Approach. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6745] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Pratibha
- Department of Chemistry, Dr. B. R Ambedkar National Institute of Technology Jalandhar Punjab India
| | - Jaspreet Kaur Rajput
- Department of Chemistry, Dr. B. R Ambedkar National Institute of Technology Jalandhar Punjab India
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36
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Wang H, Zhang C, Kong L, Wang Y, Zhang S, Zhang X, Ding J, Ren N. Solar light photocatalytic transformation of heptachlorobiphenyl (PCB 180) using g-C 3N 4 based magnetic porous photocatalyst. JOURNAL OF HAZARDOUS MATERIALS 2022; 427:128105. [PMID: 34973576 DOI: 10.1016/j.jhazmat.2021.128105] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 12/14/2021] [Accepted: 12/15/2021] [Indexed: 06/14/2023]
Abstract
A novel porous core-shell magnetic β-cyclodextrin/graphitic carbon nitride photocatalyst (Mβ-CD/GCN) was synthesized and employed in a solar light driven catalytic system for the degradation of polychlorinated biphenyls (PCBs). The Mβ-CD/GCN display superior photocatalytic performance on account of porous structure and ultrathin GCN nanosheets design, the former improves the utilization of visible light by multiple scattering and reflection of incident light, and the latter accelerates electron transfer. The ultrahigh specific surface area (1255 m2 g-1) of Mβ-CD/GCN provided a large number of active sites for adsorption and degradation of the target pollution. The pseudo-first order reaction rate constant (kobs) for the degradation of PCB180 by Mβ-CD/GCN was 0.021 min-1, which improved 3.23 times than the bulk GCN. Additionally, the effects of various reaction parameters and water matrices were studied on the degradation of PCB180. Three possible degradation pathways and mechanism of PCB180 were speculated according to the identification of reaction intermediates and detection of reactive species. The solar light driven Mβ-CD/GCN catalytic technology is a promising method not only for the control of persistent organic pollutants (POPs), but also the catalyst could be recovered and reused through simple magnetic separation.
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Affiliation(s)
- Hui Wang
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China; Heilongjiang Provincial Key Laboratory of Polar Environment and Ecosystem, Harbin Institute of Technology, Harbin 150090, China
| | - Chenyu Zhang
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Lingru Kong
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Yi Wang
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Sijia Zhang
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Xiulian Zhang
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Jie Ding
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China.
| | - Nanqi Ren
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China.
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37
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Yao G, Liu Y, Liu J, Xu Y. Facile Synthesis of Porous g-C 3N 4 with Enhanced Visible-Light Photoactivity. Molecules 2022; 27:molecules27061754. [PMID: 35335118 PMCID: PMC8953620 DOI: 10.3390/molecules27061754] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 01/08/2022] [Accepted: 01/10/2022] [Indexed: 02/01/2023] Open
Abstract
Porous graphitic carbon nitride (g-C3N4) was prepared by dicyandiamide and urea via the pyrolysis method, which possessed enhanced visible-light-driven photocatalytic performance. Its surface area was increased from 17.12 to 48.00 m2/g. The porous structure not only enhanced the light capture capacity, but also accelerated the mass transfer ability. The Di (Dicyandiamide)/Ur (Urea) composite possessed better photocatalytic activity for Rhodamine B in visible light than that of g-C3N4. Moreover, the Di/Ur-4:5 composite showed the best photoactivity, which was almost 5.8 times that of g-C3N4. The enhanced photocatalytic activity showed that holes and superoxide radical played a key role in the process of photodegradation, which was ascribed to the enhanced separation of photogenerated carriers. The efficient separation of photogenerated electron-hole pairs may be owing to the higher surface area, O dopant, and pore volumes, which can not only improve the trapping opportunities of charge carriers but also the retarded charge carrier recombination. Therefore, it is expected that the composite would be a promising candidate material for organic pollutant degradation.
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Affiliation(s)
- Guangyuan Yao
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;
- Research Institute of Soil and Solid Waste, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;
| | - Yuqiang Liu
- Research Institute of Soil and Solid Waste, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;
| | - Jingcai Liu
- Research Institute of Soil and Solid Waste, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;
- Correspondence: (J.L.); (Y.X.)
| | - Ya Xu
- Research Institute of Soil and Solid Waste, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;
- Correspondence: (J.L.); (Y.X.)
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38
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Zhang R, Jiang J, Zeng K. Synthesis of Bi2WO6/g-C3N4 heterojunction on activated carbon fiber membrane as a thin-film photocatalyst for treating antibiotic wastewater. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109418] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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39
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Mirzaei M, Habibi MH, Sabzyan H. Synthesis, characterization, and dye degradation photocatalytic activity of the nano-size copper iron binary oxide. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:9173-9192. [PMID: 34498176 DOI: 10.1007/s11356-021-16184-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 08/23/2021] [Indexed: 06/13/2023]
Abstract
Magnetic nano-size copper iron binary oxide is synthesized via a sol-gel method using copper and iron nitrates as precursors and citric acid, chicken egg white, and starch as stabilizers followed by annealing at 400 °C and 800 °C in air. The TG-DTG, XRD, FESEM, EDX, VSM, and FT-IR and UV-Vis DRS spectroscopy methods are used for thermal, structural, magnetic, and optoelectronic characterizations. Depending on the stabilizer and annealing temperature, pure CuFe2O4, (CuFe2O4,CuO) or (CuFe2O4,CuO,Fe2O3) phases are formed with nano-size particles of 20-65 nm, having optical band gaps in the range of 2.15-2.60 eV (577-477 nm). Photocatalytic activities of the synthesized nano-size copper iron binary oxide samples are examined for degradation of Nile Blue textile dye displayed first-cycle removal (from water solution) efficiencies of 86.7-93.3%. Considering usage of non-toxic metals and low-cost green stabilizers, good degradation performances, and easy/efficient (magnetic) recyclability, this nano-size catalyst is suggested for further optimization studies for industrial applications.
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Affiliation(s)
- Mahsa Mirzaei
- Department of Chemistry, University of Isfahan, Isfahan, 81746-73441, I. R. of Iran
| | | | - Hassan Sabzyan
- Department of Chemistry, University of Isfahan, Isfahan, 81746-73441, I. R. of Iran
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40
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Wang L, Ma X, Huang G, Lian R, Huang J, She H, Wang Q. Construction of ternary CuO/CuFe 2O 4/g-C 3N 4 composite and its enhanced photocatalytic degradation of tetracycline hydrochloride with persulfate under simulated sunlight. J Environ Sci (China) 2022; 112:59-70. [PMID: 34955223 DOI: 10.1016/j.jes.2021.04.026] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 04/23/2021] [Accepted: 04/25/2021] [Indexed: 06/14/2023]
Abstract
In this study, a graphitic carbon nitride (g-C3N4) based ternary catalyst CuO/CuFe2O4/g-C3N4 (CCCN) is successfully prepared thorough calcination method. After confirming the structure and composition of CCCN, the as-synthesized composites are utilized to activate persulfate (PS) for the degradation of organic contaminant. While using tetracycline hydrochloride (TC) as pollutant surrogate, the effects of initial pH, PS and catalyst concentration on the degradation rate are systematically studied. Under the optimized reaction condition, CCCN/PS is able to give 99% degradation extent and 74% chemical oxygen demand removal in assistance of simulated solar light, both of which are apparently greater than that of either CuO/CuFe2O4 and pristine g-C3N4. The great improvement in degradation can be assignable to the effective separation of photoinduced carriers thanks to the integration between CuO/CuFe2O4 and g-C3N4, as well as the increased reaction sites given by the g-C3N4 substrate. Moreover, the scavenging trials imply that the major oxidative matters involved in the decomposition are hydroxyl radicals (•OH), superoxide radicals (•O2-) and photo-induced holes (h+).
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Affiliation(s)
- Lei Wang
- Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Xiaolei Ma
- Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Guofang Huang
- Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Rui Lian
- Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Jingwei Huang
- Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Houde She
- Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Qizhao Wang
- Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China; School of Environmental Science and Engineering, Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of Ministry of Education, Chang'an University, Xi'an 710054, China.
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Ma X, Zhou Y, Gu S, Mei S, Zhu G, Yu M, Wu Y, Ping Y, Hong K, Zhang J, Mao P, Wu Z. Degradation of hexavalent chromium and methyl orange by the synergistic system of graphitic carbon nitride and electron beam irradiation. CHEMOSPHERE 2022; 287:132228. [PMID: 34826921 DOI: 10.1016/j.chemosphere.2021.132228] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 09/06/2021] [Accepted: 09/08/2021] [Indexed: 06/13/2023]
Abstract
Hexavalent chromium (Cr(VI)) and methyl orange (MO) are highly toxic and difficult to treat. Electron beam irradiation (EB) can produce ·OH, H·, ·O2-, hydrated electron (eaq-) and other active substances, which have strong redox ability to pollutants. However, the penetration capacity of EB is limited (the penetration depth of water is 10 cm). Therefore, the photocatalytic method of graphitic carbon nitride (CN) was used as the synergistic method of EB in this project to degrade Cr(VI) and MO. The results showed that the maximum treatment efficiency of 100 mg L-1 Cr(VI) and 50 mg L-1 MO with liquid surface height of 5 cm was 95.0% and 99.1%, respectively, which was much higher than that of single photocatalytic method (39.5%, 23.4%) and EB (79.6%, 92.1%), and the efficiency of synergistic treatment was higher under acidic condition. When the liquid depth increased to 30 cm, the efficiency of synergistic system decreased by 14.7% and 15.2% for the degradation of Cr(VI) and MO, respectively, less than the single EB treatment (47.2%, 45.7%). Additionally, the performance of the morphology, the light absorption performance, and the separation of photogenerated electron-hole pairs of the CN were evaluated before and after the synergistic system. Lastly, the mechanism illustrates that the electron and thermal effects of EB, eaq-, photogenerated electrons played key roles for the Cr(VI) reduction, and the electron and thermal effects of EB, ·O2-, photogenerated holes played key roles for the MO degradation. This study provides a new opportunity for the synergistic system of photocatalyst and EB in the treatment of pollutants.
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Affiliation(s)
- Xijun Ma
- National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Huaiyin Institute of Technology, Huaian, 223003, China; Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, Huaiyin Institute of Technology, Huaian, 223003, China
| | - Yiming Zhou
- National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Huaiyin Institute of Technology, Huaian, 223003, China; Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, Huaiyin Institute of Technology, Huaian, 223003, China
| | - Shiqi Gu
- National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Huaiyin Institute of Technology, Huaian, 223003, China; Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, Huaiyin Institute of Technology, Huaian, 223003, China
| | - Su Mei
- National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Huaiyin Institute of Technology, Huaian, 223003, China; Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, Huaiyin Institute of Technology, Huaian, 223003, China
| | - Guyue Zhu
- National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Huaiyin Institute of Technology, Huaian, 223003, China; Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, Huaiyin Institute of Technology, Huaian, 223003, China
| | - Min Yu
- National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Huaiyin Institute of Technology, Huaian, 223003, China; Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, Huaiyin Institute of Technology, Huaian, 223003, China
| | - Yiqing Wu
- National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Huaiyin Institute of Technology, Huaian, 223003, China; Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, Huaiyin Institute of Technology, Huaian, 223003, China
| | - Yuhe Ping
- International School of Nanjing Yuhuatai High School, China
| | - Kun Hong
- National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Huaiyin Institute of Technology, Huaian, 223003, China; Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, Huaiyin Institute of Technology, Huaian, 223003, China
| | - Jing Zhang
- National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Huaiyin Institute of Technology, Huaian, 223003, China; Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, People's Republic of China.
| | - Ping Mao
- National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Huaiyin Institute of Technology, Huaian, 223003, China; Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, Huaiyin Institute of Technology, Huaian, 223003, China.
| | - Zhengyan Wu
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, People's Republic of China; Key Laboratory of Environmental Toxicology and Pollution Control Technology of Anhui Province, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, People's Republic of China.
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Vasseghian Y, Dragoi EN, Almomani F, Le VT. Graphene-based materials for metronidazole degradation: A comprehensive review. CHEMOSPHERE 2022; 286:131727. [PMID: 34352554 DOI: 10.1016/j.chemosphere.2021.131727] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Revised: 07/21/2021] [Accepted: 07/28/2021] [Indexed: 06/13/2023]
Abstract
Due to its cytotoxic effect, metronidazole (MNZ) is a drug commonly used to treat bacterial, protozoal, and microaerophilic bacterial infections. After consumption, it undergoes a series of metamorphic reactions that lead to the degradation of oxidized, acetylated, and hydrolyzed metabolites in the environment. To eliminate such pollutants, due to their high potential, adsorption and photocatalysis extensive processes are used in which graphene can be used to improve efficiency. This review analyses the use of graphene as an absorbent and catalyst with a focus on absorption and photocatalytic degradation of MNZ by graphene-based materials (GBMs). The parameters affecting the adsorption, and photocatalytic degradation of MNZ are investigated and discussed. Besides, the basic mechanisms occurring in these processes are summarized and analyzed. This work provides a theoretical framework that can direct future research in the field of MNZ removal from aqueous solutions.
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Affiliation(s)
- Yasser Vasseghian
- Department of Chemical Engineering, Quchan University of Technology, Quchan, Iran.
| | - Elena-Niculina Dragoi
- Faculty of Chemical Engineering and Environmental Protection "Cristofor Simionescu", "Gheorghe Asachi" Technical University, Iasi, Bld Mangeron No 73, 700050, Romania.
| | - Fares Almomani
- Department of Chemical Engineering, College of Engineering, Qatar University, P. O. Box 2713, Doha, Qatar.
| | - Van Thuan Le
- Center for Advanced Chemistry, Institute of Research and Development, Duy Tan University, 03 Quang Trung, Da Nang 550000, Viet Nam; The Faculty of Environmental and Chemical Engineering, Duy Tan University, 03 Quang Trung, Da Nang 550000, Viet Nam.
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Cai H, Ma Z, Zhao T. Fabrication of magnetic CuFe 2O 4@PBC composite and efficient removal of metronidazole by the photo-Fenton process in a wide pH range. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 300:113677. [PMID: 34507058 DOI: 10.1016/j.jenvman.2021.113677] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 08/18/2021] [Accepted: 09/02/2021] [Indexed: 06/13/2023]
Abstract
CuFe2O4-coated pretreated biochars (CuFe2O4@PBC) were synthesized for the first time via a facile method by impregnating and calcinating Cu-Fe-ethanol solution to activate H2O2 for the degradation of metronidazole (MNZ) at a wide pH range. CuFe2O4@PBC samples were characterized by XRD, SEM, VSM, XPS, and BET. The results showed that CuFe2O4 coating, which is evenly distributed on the surface of HNO3-pretreated biochar, can provide more active sites to enable CuFe2O4@PBC to be activated by visible light. The introduction of biochar by impregnating and calcinating method effectively suppressed the aggregation of CuFe2O4 and maintained its high surface area and pore structure. CuFe2O4@PBC composite can be separated easily by an external magnetic field. The PBC-400CuFe sample calcined under 400 °C showed superior photo-Fenton catalytic ability in MNZ degradation at a wide pH range (pH = 3-7) and exhibited high-efficiency degradation of about 96.3% with the dosage concentration of catalyst 0.4 g/L in the presence of H2O2 at pH 3.0 within 60 min. While, at pH 7.0, the PBC-400CuFe material removed 91.1% MNZ within 120 min, and the degradation efficiency was still higher than that of traditional Fenton reaction and some Fenton-like reaction. The PBC-400CuFe showed good stability. After 5 times of repeated use, its removal rate was still above 89.1%. This study confirmed that O2•- and h+ are both important radicals, but the •OH played a key role in the visible photo/CuFe2O4@PBC- H₂O₂ system. The results indicate that CuFe2O4@PBC is highly suitable for the wastewaters with high MNZ content under mild conditions.
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Affiliation(s)
- Hao Cai
- Hebei Province Collaborative Innovation Center for Sustainable Utilization of Water Resources and Optimization of Industrial Structure, Hebei GEO University, Shijiazhuang, China; College of Chemistry and Material Sciences, Hebei Normal University, Shijiazhuang, China; Hebei Province Key Laboratory of Sustained Utilization and Development of Water Resources, Hebei GEO University, Shijiazhuang, China; Hebei Center for Ecological and Environmental Geology Research, Hebei GEO University, Shijiazhuang, China
| | - Zichuan Ma
- College of Chemistry and Material Sciences, Hebei Normal University, Shijiazhuang, China.
| | - Tianci Zhao
- College of Chemistry and Material Sciences, Hebei Normal University, Shijiazhuang, China
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Liu S, Liu Z, Meng Q, Chen C, Pang M. Facile Synthesis of a Cubic Porphyrin-Based Covalent Organic Framework for Combined Breast Cancer Therapy. ACS APPLIED MATERIALS & INTERFACES 2021; 13:56873-56880. [PMID: 34797623 DOI: 10.1021/acsami.1c16366] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
A cubic porphyrin-based covalent organic framework (COF) named CTP with excellent hydrophilicity was prepared with a facile method for the first time. Different from the conventional methods for the synthesis of porphyrin-based COFs, this facile strategy has greatly shortened the reaction time under mild conditions. Linking the porphyrin monomer into the COF overcame its poor solubility and biocompatibility and also narrowed the band gap owing to the formation of the π-conjugation structure. The improved biocompatibility and narrowed band gap enabled CTP to be an excellent sonosensitizer with an enhanced sonodynamic effect. Moreover, CTP could also effectively realize photothermal conversion under external irradiation due to the extended conjugated structure. This work developed a novel synthesis method for COFs and employed a COF as a sonosensitizer for the first time, which not only provided a new strategy to improve the efficiency of organic sonosensitizers but also inspired us to design more functional COFs for versatile applications.
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Affiliation(s)
- Sainan Liu
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun 130022, PR China
- University of Science and Technology of China, Hefei 230026, PR China
| | - Zhendong Liu
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun 130022, PR China
- University of Science and Technology of China, Hefei 230026, PR China
| | - Qi Meng
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun 130022, PR China
- University of Science and Technology of China, Hefei 230026, PR China
| | - Changxiao Chen
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun 130022, PR China
- University of Science and Technology of China, Hefei 230026, PR China
| | - Maolin Pang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun 130022, PR China
- University of Science and Technology of China, Hefei 230026, PR China
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Constructing carbon microspheres/MnFe2O4/g-C3N4 composite photocatalysts for enhanced photocatalytic activity under visible light irradiation. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2021.108947] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Das S, Chowdhury A. Recent advancements of g-C 3N 4-based magnetic photocatalysts towards the degradation of organic pollutants: a review. NANOTECHNOLOGY 2021; 33:072004. [PMID: 34731840 DOI: 10.1088/1361-6528/ac3614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 11/02/2021] [Indexed: 06/13/2023]
Abstract
Heterogeneous photocatalysis premised on advanced oxidation processes has witnessed a broad application perspective, including water purification and environmental remediation. In particular, the graphitic carbon nitride (g-C3N4), an earth-abundant metal-free conjugated polymer, has acquired extensive application scope and interdisciplinary consideration owing to its outstanding structural and physicochemical properties. However, several issues such as the high recombination rate of the photo-generated electron-hole pairs, smaller specific surface area, and lower electrical conductivity curtail the catalytic efficacy of bulk g-C3N4. Another challenging task is separating the catalyst from the reaction medium, limiting their reusability and practical applications. Therefore, several methodologies are adopted strategically to tackle these issues. Attention is being paid, especially to the magnetic nanocomposites (NCs) based catalysts to enhance efficiency and proficient reusability property. This review summarizes the latest progress related to the design and development of magnetic g-C3N4-based NCs and their utilization in photocatalytic systems. The usefulness of the semiconductor heterojunctions on the catalytic activity, working mechanism, and degradation of pollutants are discussed in detail. The major challenges and prospects of using magnetic g-C3N4-based NCs for photocatalytic applications are highlighted in this report.
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Affiliation(s)
- Suma Das
- Organic Electronics & Sensor Laboratory, Department of Physics, National Institute of Technology Silchar, Assam 788010, India
| | - Avijit Chowdhury
- Organic Electronics & Sensor Laboratory, Department of Physics, National Institute of Technology Silchar, Assam 788010, India
- Department of Condensed Matter Physics and Material Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata 700106, India
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Shi S, Han X, Liu J, Lan X, Feng J, Li Y, Zhang W, Wang J. Photothermal-boosted effect of binary CuFe bimetallic magnetic MOF heterojunction for high-performance photo-Fenton degradation of organic pollutants. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 795:148883. [PMID: 34252775 DOI: 10.1016/j.scitotenv.2021.148883] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 07/02/2021] [Accepted: 07/03/2021] [Indexed: 06/13/2023]
Abstract
Overcoming the relatively low catalytic activity and strict acid pH condition of common photo-Fenton reaction is the key to alleviate the serious global burden caused by common organic pollutants. Herein, a binary homologous bimetallic heterojunction of magnetic CuFe2O4@MIL-100(Fe, Cu) metal-organic frameworks (MCuFe MOF) with photothermal-boosted photo-Fenton activity is constructed as an ideal practical photo-Fenton catalyst for the degradation of organic pollutants. Through an in-situ derivation strategy, the formed homologous bimetallic heterojunction with binary redox couples can simultaneously improve the visible light harvesting capacity and expedite the separation and transfer of photogenerated electrons/holes pairs, leading to the continuous and rapid circulation of both FeIII/FeII and CuII/CuI redox couples. Notably, the heterojunction shows intrinsic photo-thermal conversion effect, which is found to be beneficial to boost the photo-Fenton activity. Impressively, MCuFe MOF shows remarkable catalytic performance towards the degradation of various organic pollutants by comprehensively increasing H2O2 decomposition efficiency and decreasing the required dosage of MCuFe MOF (0.05 g L-1) with a wide pH range (3.0-10.0). As such, a photo-Fenton catalyst consisting of binary homologous bimetallic heterojunction is first disclosed, as well as its photothermal-enhanced effect, which is expected to drive great advance in the degradation of organic pollutants for practical applications.
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Affiliation(s)
- Shuo Shi
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, PR China
| | - Ximei Han
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, PR China
| | - Jie Liu
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, PR China
| | - Xi Lan
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, PR China
| | - Jianxing Feng
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, PR China
| | - Yuchen Li
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, PR China
| | - Wentao Zhang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, PR China
| | - Jianlong Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, PR China.
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48
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Fei J, Peng X, Jiang L, Yuan X, Chen X, Zhao Y, Zhang W. Recent advances in graphitic carbon nitride as a catalyst for heterogeneous Fenton-like reactions. Dalton Trans 2021; 50:16887-16908. [PMID: 34734599 DOI: 10.1039/d1dt02367e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
Abstract
Graphitic carbon nitride (g-C3N4), an appealing metal-free polymer, has featured in extensive research in heterogeneous Fenton-like reactions owing to its advantages of stable chemical and thermal properties, ease of structural regulation and unique redox ability. However, there are still some gaps in the understanding of the mechanism and fate of g-C3N4 and its derivatives in heterogeneous Fenton reaction degradation of contaminants. This paper gives systematic emphasis to the development and progress of g-C3N4 and its composites as catalysts in heterogeneous Fenton-like reactions. The main synthesis strategies of g-C3N4 composites are discussed, including calcination, hydrothermal method and self-assembly method. Then, the key catalytic properties of g-C3N4 in Fenton-like applications, including anchoring nanoparticles, increasing specific surface area and exposed active surface sites, as well as regulating charge transfer reactions, are highlighted. Special emphasis is placed on its multifunctional role in heterogeneous Fenton-like reactions and the mechanisms involved in the activation of hydrogen peroxide, persulfates, and photocatalytic activation of persulfate. Lastly, the existing challenges and possible development direction of g-C3N4-coupling Fenton reactions are proposed. It is believed that this paper will bring useful information for the development of graphitic carbon nitride in both laboratory studies and practical applications.
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Affiliation(s)
- Jia Fei
- National & Local United Engineering Laboratory for New Petrochemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, China.
| | - Xin Peng
- National & Local United Engineering Laboratory for New Petrochemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, China.
| | - Longbo Jiang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, P.R. China. .,Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, P.R. China
| | - Xingzhong Yuan
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, P.R. China. .,Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, P.R. China
| | - Xiangyan Chen
- National & Local United Engineering Laboratory for New Petrochemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, China.
| | - Yanlan Zhao
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, P.R. China. .,Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, P.R. China
| | - Wei Zhang
- National & Local United Engineering Laboratory for New Petrochemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, China.
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Pan G, Sun Z. Cu-doped g-C 3N 4 catalyst with stable Cu 0 and Cu + for enhanced amoxicillin degradation by heterogeneous electro-Fenton process at neutral pH. CHEMOSPHERE 2021; 283:131257. [PMID: 34182643 DOI: 10.1016/j.chemosphere.2021.131257] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Revised: 06/13/2021] [Accepted: 06/15/2021] [Indexed: 06/13/2023]
Abstract
The development of new heterogeneous Cu-based solid catalysts for hydroxyl radical (∙OH) generation plays a crucial role in degradation of pollutants at neutral pH circumstance. In this work, a Cu-doped graphitic carbon nitride (g-C3N4) complex was synthesized in one-step pyrolysis process using copper chloride dihydrate and dicyandiamide as precursors. The results reveal that after Cu doping, the bulk structure of g-C3N4 was destroyed with fragmentary morphology formation. Besides, Cu0 and Cu+ were successfully embedded in g-C3N4 sheet. Moreover, amoxicillin (AMX) removal by heterogeneous electro-Fenton process was performed to evaluate the catalytic activity of the Cu-doped g-C3N4. 99.1% AMX removal efficiency was obtained after 60 min electrolysis under neutral pH condition when the current density was 12 mA cm2 and the catalyst dosage was 0.3 g L-1. Both Cu0 and Cu+ were stably retained in the Cu-doped g-C3N4 catalyst and AMX removal efficiency reached 91.1%, even after 5 cycles, manifesting the remarkable stability of Cu-doped g-C3N4. Also, Cu-doped g-C3N4 possessed excellent catalytic activities for AMX removal in various waterbodies. According to the catalytic mechanism analysis, the ∙OH was proved to be the primary reactive species for AMX removal in heterogeneous electro-Fenton process. Based on the identification of sixteen different intermediate products, the possible degradation pathways were proposed. This work provides a simple method to synthesize a Cu-based solid catalyst containing stable Cu0 and Cu + for degradation of pollutants in wastewater.
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Affiliation(s)
- Guifang Pan
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Beijing University of Technology, Beijing, 100124, PR China
| | - Zhirong Sun
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Beijing University of Technology, Beijing, 100124, PR China.
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50
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Wang C, Huang R, Sun R, Wang H. Ultrasound assisted Fenton-like degradation of dyes using copper doped graphitic carbon nitride. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2021; 84:1146-1158. [PMID: 34534112 DOI: 10.2166/wst.2021.286] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
A novel copper doped graphitic carbon nitride (Cu-C3N4) was successfully synthesized and used as an effective Fenton-like catalyst. Cu-C3N4 was characterized by scanning electron microscopy, surface area analyzer, Fourier transform infrared spectroscopy, X-ray diffractometer, and X-ray photoelectron spectroscopy. Effect of process parameters including catalyst dosage, hydrogen peroxide (H2O2) concentration, solution pH, and initial methylene blue (MB) concentration was investigated to evaluate catalytic performance. The pseudo first-order kinetic model was used to describe the catalytic process. The enhancement of MB degradation is observed assisted by ultrasound. MB degradation of 96% is obtained within 30 min in Cu-C3N4/H2O2/ultrasound system, and the corresponding rate constant is 0.099 min-1. Effective MB degradation is obtained over a broad pH range (3.3-9.9). The catalytic mechanism is examined by ultraviolet-visible spectra, quenching test, and electron spin resonance determination. The dominant mechanism of MB degradation is ascribed to the ultrasonic H2O2 activation by Cu-C3N4 for hydroxyl radical generation. Cu-C3N4 has good reusability and is effective to degrade rhodamine B and acid orange 7. This work not only contributes to the field of wastewater treatment, but also provides insights into the synthesis of Fenton-like catalysts. The results manifest that Cu-C3N4 is a promising Fenton-like catalyst for dye degradation in the field of environmental pollution remediation.
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Affiliation(s)
- Chongqing Wang
- School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China E-mail:
| | - Rong Huang
- School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China E-mail:
| | - Ruirui Sun
- School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China E-mail:
| | - Hui Wang
- School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
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