1
|
Medina JC, Warren E, Morgan D, Gow IE, Edwards J. Influence of Pd, Pt and Au nanoparticles in the photocatalytic performance of N-TiO 2 support under visible light. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2024; 382:20230271. [PMID: 39307167 PMCID: PMC11449022 DOI: 10.1098/rsta.2023.0271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/04/2024] [Revised: 07/29/2024] [Accepted: 07/29/2024] [Indexed: 10/06/2024]
Abstract
In this article, we report the modification and photocatalytic evaluation of commercial TiO2-P25 under visible light for methyl orange (MO) dye degradation under visible light. The activity of materials doped with N, Pd, Pt and Au on to the TiO2-P25 was evaluated, with optimal photocatalytic performance achieved using Au nanoparticles doped on an N-functionalized titania surface. X-ray diffraction (XRD), physical nitrogen adsorption/desorption isotherm curves, transmission electron microscopy (TEM), diffuse reflectance spectroscopy, scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX) were used to study the structural and textural properties of the samples. The chemical species present in the bulk and surface of the catalysts were identified using X-ray photoelectron spectroscopy (XPS) and microwave plasma-atomic emission spectroscopy. The results show that Au/N-TiO2 photocatalyst presents a remarkable enhanced activity for MO dye degradation, under visible light illumination, reaching 100% after 4 h. The enhanced photocatalytic activity using this composite is attributable to the well-dispersed and small size of Au nanoparticles, large surface area, reduction of band-gap energy and the interaction between nitrogen and Au which promoted a synergistic effect. This article is part of the discussion meeting issue 'Green carbon for the chemical industry of the future'.
Collapse
Affiliation(s)
- J C Medina
- Cardiff Catalysis Institute, Cardiff University School of Chemistry, Translational Research Hub, Cardiff University, Maindy Road , Cardiff CF24 4HQ, UK
| | - Eleanor Warren
- Cardiff Catalysis Institute, Cardiff University School of Chemistry, Translational Research Hub, Cardiff University, Maindy Road , Cardiff CF24 4HQ, UK
| | - David Morgan
- Cardiff Catalysis Institute, Cardiff University School of Chemistry, Translational Research Hub, Cardiff University, Maindy Road , Cardiff CF24 4HQ, UK
| | - Isla E Gow
- Cardiff Catalysis Institute, Cardiff University School of Chemistry, Translational Research Hub, Cardiff University, Maindy Road , Cardiff CF24 4HQ, UK
| | - Jennifer Edwards
- Cardiff Catalysis Institute, Cardiff University School of Chemistry, Translational Research Hub, Cardiff University, Maindy Road , Cardiff CF24 4HQ, UK
| |
Collapse
|
2
|
Mukherjee A, Dhak P, Mandal D, Dhak D. Solvothermal synthesis of 3D rod-shaped Ti/Al/Cr nano-oxide for photodegradation of wastewater micropollutants under sunlight: a green way to achieve SDG:6. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:56901-56916. [PMID: 37812343 DOI: 10.1007/s11356-023-30112-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 09/24/2023] [Indexed: 10/10/2023]
Abstract
Waterbodies are day-by-day polluted by the various colored micropollutants, e.g., azo dyes enriched (carcinogenic, non-biodegradable) colored wastewater from textile industries. Water pollution has become a serious global issue as ~ 25% of health diseases are prompted by pollution as reported by WHO. Around 1 billion people will face water scarcity by 2025 and this water crisis is also a prime focus to the UNs' sustainable development goal 6 (SDG6: clean water and sanitation). To prevent the water pollution caused by micropollutants, a mesoporous, 3D rod-like nano-oxide Ti/Al/Cr (abbreviated as TAC) has been synthesized via the solvothermal method. TAC degraded all classes of azo dyes (mono, di, tri, etc.) with > 90% efficiency under renewable energy source solar irradiation within the pH range 2-11. The detailed study was done on the photodegradation of carcinogenic di-azo dye Congo red (CR) which is banned in many countries. TAC showed 90.64 ± 2% degradation efficiency for CR at pH 7. The proposed photodegradation mechanism of CR was confirmed by the high-resolution liquid chromatography-mass spectroscopy (HRLC-MS) analysis obeying the Pirkanniemi path. The photodegradation obeyed the pseudo-1st-order kinetics and was reusable up to successive 5 cycles which can be an efficient tool to meet the UNs' SDG:6.
Collapse
Affiliation(s)
- Arnab Mukherjee
- Nanomaterials Research Lab, Department of Chemistry, Sidho-Kanho-Birsha University, Purulia, 723104, India
| | - Prasanta Dhak
- Department of Chemistry, Techno India University, Kolkata, 700091, India
| | - Debpriya Mandal
- Nanomaterials Research Lab, Department of Chemistry, Sidho-Kanho-Birsha University, Purulia, 723104, India
| | - Debasis Dhak
- Nanomaterials Research Lab, Department of Chemistry, Sidho-Kanho-Birsha University, Purulia, 723104, India.
| |
Collapse
|
3
|
Assayehegn E, Solaiappan A, Gidey AT, Gebreegziabher GG, Gebretsadik TT, Chebude Y, Alemayehu E. In Situ Driven Formation of Anatase/Brookite/Rutile Heterojunction N/TiO 2 Nanocrystals as Sustainable Visible-Light Catalysts. GLOBAL CHALLENGES (HOBOKEN, NJ) 2024; 8:2400174. [PMID: 39398524 PMCID: PMC11469765 DOI: 10.1002/gch2.202400174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2024] [Revised: 09/01/2024] [Indexed: 10/15/2024]
Abstract
Visible-light active anatase/brookite/rutile (A/B/R) ternary N-doped titania (N/TiO2) crystals are successfully prepared by a facile sol-gel method using titanium butoxide and benign N-dopant source, guanidinium chloride. Systematically varying the aging time (1, 4, 8, and 12 d), its influence on physicochemical properties of as-obtained spherical heterojunction nanomaterials is studied. Detailed characterizations confirm that a substantial amount of anatase (88% to 50%) is transformed to rutile (2% to 38%) via intermediate brookite phase (9% to 25%) as the function of aging time; not only the A/B/R phase content of the samples is tuned by sol-gel aging time of the precursors solution but also their optical-response and methylene blue photocatalytic properties are profoundly dictated. Notably under visible-light irradiation, the photostable rutile rich mesoporous A/B/R triphasic N/TiO2 (50% A, 12% B, 38% R) aged for 12 d demonstrates higher degradation activity (97%) with a faster degradation rate (0.033 min-1) than both lesser aged N/TiO2 and undoped titania. This enhancement is attributed to the synergistic effect of interstitial-N-doping and optimal A/B/R interfacial charge transfer that leads to higher light absorption, lower bandgap energy and well-separated charge carriers. The current work provides a new perspective for designing highly active visible-light heterostructure nanomaterials with controllable phase composition.
Collapse
Affiliation(s)
- Elias Assayehegn
- Materials Science and Technology DivisionNational Institute for Interdisciplinary Science and Technology (NIIST‐CSIR)Thiruvananthapuram695019India
- National Centre for Catalysis Researchand Department of ChemistryIndian Institute of Technology‐MadrasChennai600036India
- Department of ChemistryMekelle UniversityP.O. Box 231MekelleEthiopia
- Faculty of SciencePavol Jozef Šafárik UniversityPark Angelinum 9Košice04001Slovakia
| | - Ananthakumar Solaiappan
- Materials Science and Technology DivisionNational Institute for Interdisciplinary Science and Technology (NIIST‐CSIR)Thiruvananthapuram695019India
| | | | | | | | - Yonas Chebude
- Department of ChemistryAddis Ababa UniversityP.O.Box 1176Addis AbabaEthiopia
| | - Esayas Alemayehu
- Faculty of Civil and Environmental EngineeringJimma UniversityP.O.Box 378JimmaEthiopia
| |
Collapse
|
4
|
Rani A, Lal AS, Saravanan P. Bismuth niobate/g-C 3N 4 heterojunction for maximised visible light photocatalytic removal of Bisphenol A. CHEMOSPHERE 2024; 364:143198. [PMID: 39209037 DOI: 10.1016/j.chemosphere.2024.143198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2024] [Revised: 08/23/2024] [Accepted: 08/26/2024] [Indexed: 09/04/2024]
Abstract
The occurrence of xenobiotic pollutants in the aquatic environment troubling the present and future generation. Persistent Organic Pollutants (POPs) is one such class of xenobiotic that was dominant in that category. In the present paper, a competent visible light driven heterojunction photocatalyst combining Bismuth niobate and g-C3N4 was developed for the effective removal of Bisphenol A (BPA), a notable POP. Before constructing the heterostructure the calcination temperature for bismuth niobate synthesis was optimised for achieving most proficient photocatalysis. A phase change in the crystal structure of bismuth niobate was apparent. The Bi3NbO7 at 300-500 °C transformed to Bi5Nb3O15 at 600-700 °C and to orthorhombic BiNbO4 at 900 °C as the temperature was enhanced. With the increment in the temperature the light absorbance of the materials enhanced in UV and reduced in visible light. Thus, the bismuth niobate obtained by calcining at 500 °C demonstrated highest BPA removal under sunlight was chosen for heterojunction construction. After the heterojunction construction with g-C3N4 the crystal lattice strain was observed to be reduced for all composites, and a greater mobility of charge carriers was observed within the composite. The presence of either of the materials resulted in a different band structure and thus Type II and Z-scheme pathway was inferred. A commendable photocatalytic activity was observed for B1.5G and BG1.5 under sunlight and LED light respectively. Hight amount of g-C3N4 in the BG1.5 resulted in maximum absorbance in LED light. Superoxide radicals (*O2-) radicals were observed as major radicals for B1.5G composite, whereas both *O2- and holes (h+) were the major radicals in case of BG1.5.
Collapse
Affiliation(s)
- Ankita Rani
- Environmental Nanotechnology Laboratory, Department of Environmental Science and Engineering, Indian Institute of Technology (ISM), Dhanbad, 826004, Jharkhand, India; Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India
| | - Aditya Swarup Lal
- Environmental Nanotechnology Laboratory, Department of Environmental Science and Engineering, Indian Institute of Technology (ISM), Dhanbad, 826004, Jharkhand, India
| | - Pichiah Saravanan
- Environmental Nanotechnology Laboratory, Department of Environmental Science and Engineering, Indian Institute of Technology (ISM), Dhanbad, 826004, Jharkhand, India.
| |
Collapse
|
5
|
Rana S, Kumar A, Wang T, Dhiman P, Sharma G. Recent progress and new insights on semiconductor heterojunctions powered photocatalytic desulphurization: A review. CHEMOSPHERE 2024; 364:143237. [PMID: 39218263 DOI: 10.1016/j.chemosphere.2024.143237] [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: 05/23/2024] [Revised: 07/09/2024] [Accepted: 08/30/2024] [Indexed: 09/04/2024]
Abstract
Desulphurization of fossil fuels is a critical process in reducing the sulphur content from environment, which is a major contributor to atmospheric pollution. Traditional desulphurization techniques, while effective, often involve high energy consumption and the use of harsh chemicals. Recently, photocatalytic desulphurization has emerged as a promising, eco-friendly alternative, leveraging the potential of photocatalysts especially semiconductor heterojunctions to enhance photocatalytic efficiency. This review comprehensively discusses the significance and mechanism of photocatalytic desulphurization reactions, designing of various heterojunctions such as conventional, p-n, Z-scheme and S-scheme, their charge transfer mechanism and properties and their contribution to the photocatalytic desulphurization activity. Heterojunctions, formed by combining different semiconductor materials, facilitate efficient charge separation and broaden the light absorption range, thereby improving the photocatalytic performance under visible light. Furthermore, the recent advancements in the heterojunction systems in the field of photocatalytic desulphurization activity have been discussed in detail and summarized. The current limitations and challenges in this particular field are also explored. The paper concludes with an outlook on future research directions and the potential industrial applications of heterojunction-powered photocatalytic desulphurization, emphasizing its role in achieving cleaner energy production and environmental sustainability.
Collapse
Affiliation(s)
- Sahil Rana
- International Research Centre of Nanotechnology for Himalayan Sustainability (IRCNHS), Shoolini University, Solan, 173229, India
| | - Amit Kumar
- International Research Centre of Nanotechnology for Himalayan Sustainability (IRCNHS), Shoolini University, Solan, 173229, India; Interdisciplinary and Innovate Research, Xi'an University of Architecture and Technology, Xi'an, 710055, PR China.
| | - Tongtong Wang
- Interdisciplinary and Innovate Research, Xi'an University of Architecture and Technology, Xi'an, 710055, PR China.
| | - Pooja Dhiman
- International Research Centre of Nanotechnology for Himalayan Sustainability (IRCNHS), Shoolini University, Solan, 173229, India
| | - Gaurav Sharma
- International Research Centre of Nanotechnology for Himalayan Sustainability (IRCNHS), Shoolini University, Solan, 173229, India
| |
Collapse
|
6
|
Qiao XX, Xu YH, Liu XJ, Chen SL, Zhong Z, Li YF, Lü J. Nitrogen-doped titanium dioxide/schwertmannite nanocomposites as heterogeneous photo-Fenton catalysts with enhanced efficiency for the degradation of bisphenol A. J Environ Sci (China) 2024; 143:1-11. [PMID: 38644008 DOI: 10.1016/j.jes.2023.06.026] [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: 01/30/2023] [Revised: 06/19/2023] [Accepted: 06/20/2023] [Indexed: 04/23/2024]
Abstract
Potential health risks related to environmental endocrine disruptors (EEDs) have aroused research hotspots at the forefront of water treatment technologies. Herein, nitrogen-doped titanium dioxide/schwertmannite nanocomposites (N-TiO2/SCH) have been successfully developed as heterogeneous catalysts for the degradation of typical EEDs via photo-Fenton processes. Due to the sustainable Fe(III)/Fe(II) conversion induced by photoelectrons, as-prepared N-TiO2/SCH nanocomposites exhibit much enhanced efficiency for the degradation of bisphenol A (BPA; ca. 100% within 60 min under visible irradiation) in a wide pH range of 3.0-7.8, which is significantly higher than that of the pristine schwertmannite (ca. 74.5%) or N-TiO2 (ca. 10.8%). In this photo-Fenton system, the efficient degradation of BPA is mainly attributed to the oxidation by hydroxyl radical (•OH) and singlet oxygen (1O2). Moreover, the possible catalytic mechanisms and reaction pathway of BPA degradation are systematically investigated based on analytical and photoelectrochemical analyses. This work not only provides a feasible means for the development of novel heterogeneous photo-Fenton catalysts, but also lays a theoretical foundation for the potential application of mineral-based materials in wastewater treatment.
Collapse
Affiliation(s)
- Xing-Xing Qiao
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Yu-Hang Xu
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Xiang-Ji Liu
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Sai-Le Chen
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Zhou Zhong
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Ya-Feng Li
- State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou 350116, China
| | - Jian Lü
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China; State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou 350116, China.
| |
Collapse
|
7
|
Tsai YH, Milbrandt NB, Prado RC, Ponce NB, Alam MM, Qiu SR, Yu X, Burda C, Kim TKJ, Samia ACS. Effect of Nitrogen Doping on the Photocatalytic Properties and Antibiofilm Efficacy of Reduced TiO 2 Nanoparticles. ACS APPLIED BIO MATERIALS 2024; 7:4580-4592. [PMID: 38958462 DOI: 10.1021/acsabm.4c00459] [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] [Indexed: 07/04/2024]
Abstract
Nanomaterial-mediated antibacterial photodynamic therapy (aPDT) emerges as a promising treatment against antibiotic-resistant bacterial biofilms. Specifically, titanium dioxide nanoparticles (TiO2 NPs) are being investigated as photosensitizers in aPDT to address biofilm related diseases. To enhance their photocatalytic performance in the visible spectral range for biomedical applications, various strategies have been adopted, including reduction of TiO2 NPs. However, despite improvements in visible-light photoactivity, reduced TiO2 NPs have yet to reach their expected performance primarily due to the instability of oxygen vacancies and their tendency to reoxidize easily. To address this, we present a two-step approach to fabricate highly visible-light active and stable TiO2 NP photocatalysts, involving nitrogen doping followed by a magnesium-assisted reductive annealing process. X-ray photoelectron spectroscopy analysis of the synthesized reduced nitrogen-doped TiO2 NPs (H:Mg-N-TiO2 NPs) reveals that the presence of nitrogen stabilizes oxygen vacancies and reduced Ti species, leading to increased production of reactive oxygen species under visible-light excitation. The improved aPDT efficiency translates to a 3-fold enhancement in the antibiofilm activity of nitrogen-doped compared to undoped reduced TiO2 NPs against both Gram-positive (Streptococcus mutans) and Gram-negative (Porphyromonas gingivalis, Fusobacterium nucleatum) oral pathogens. These results underscore the potential of H:Mg-N-TiO2 NPs in aPDT for combating bacterial biofilms effectively.
Collapse
Affiliation(s)
- Yu Hsin Tsai
- Department of Chemistry, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
| | - Nathalie B Milbrandt
- Department of Chemistry, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
| | - Ross Clark Prado
- Department of Chemistry, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
| | - Nicole Beatrice Ponce
- Department of Chemistry, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
| | - Md Masud Alam
- Department of Chemistry, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
| | - S Roger Qiu
- Physical and Life Sciences Directorate, Lawrence Livermore National Laboratyory, Livermore, California 94551, United States
| | - Xiong Yu
- Department of Civil and Environmental Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
| | - Clemens Burda
- Department of Chemistry, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
| | - Tae Kyong John Kim
- Swagelok Center for Surface Analysis of Materials, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
| | - Anna Cristina S Samia
- Department of Chemistry, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
| |
Collapse
|
8
|
Yang H, Deng H, Liang P, Ma X, Yin J, Jiang L, Chen Y, Shi S, Liu H, Ma X, Li Y, Xiong Y. Photocatalytic Reduction of Perrhenate and Pertechnetate in a Strongly Acidic Aqueous Solution. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:12237-12248. [PMID: 38934294 DOI: 10.1021/acs.est.4c02511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/28/2024]
Abstract
Pertechnetate (99TcO4-), a physiologically toxic radioactive anion, is of great concern due to its high mobility in environmental contamination remediation. Although the soluble oxyanion can be photoreduced to sparingly soluble TcO2·nH2O, its effective removal from a strongly acidic aqueous solution remains a challenge. Here, we found that low-crystalline nitrogen-doped titanium oxide (N-TiO2, 0.6 g L-1) could effectively uptake perrhenate (ReO4-, 10 mg L-1, a nonradioactive surrogate for TcO4-) with 50.8% during 360 min under simulated sunlight irradiation at pH 1.0, but P25 and anatase could not. The nitrogen active center formed by trace nitrogen doping in N-TiO2 can promote the separation and transfer of photogenerated carriers. The positive valence band value of N-TiO2 is slightly higher than those of P25 and anatase, which means that the photogenerated holes have a stronger oxidizability. These holes are involved in the formation of strong reducing •CO2- radicals from formic acid oxidation. The active radicals convert ReO4- to Re(VI), which is subsequently disproportionated to Re(IV) and Re(VII). Effective photocatalytic reduction/removal of Re(VII)/Tc(VII) is performed on the material, which may be considered a potential and convenient strategy for technetium decontamination and extraction in a strongly acidic aqueous solution.
Collapse
Affiliation(s)
- Heng Yang
- State Key Laboratory of Environment-friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang 621010, P. R. China
| | - Hao Deng
- State Key Laboratory of Environment-friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang 621010, P. R. China
| | - Pengliang Liang
- Key Laboratory of Nuclear Environmental Simulation and Evaluation Technology, China Institute for Radiation Protection, Taiyuan 030006, P. R. China
| | - XianJin Ma
- State Key Laboratory of Environment-friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang 621010, P. R. China
| | - Jing Yin
- State Key Laboratory of Environment-friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang 621010, P. R. China
| | - Long Jiang
- State Key Laboratory of Environment-friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang 621010, P. R. China
| | - Yanyan Chen
- State Key Laboratory of Environment-friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang 621010, P. R. China
| | - Shuying Shi
- State Key Laboratory of Environment-friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang 621010, P. R. China
| | - Huiqiang Liu
- State Key Laboratory of Environment-friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang 621010, P. R. China
| | - Xue Ma
- State Key Laboratory of Environment-friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang 621010, P. R. China
| | - Yuxiang Li
- State Key Laboratory of Environment-friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang 621010, P. R. China
| | - Ying Xiong
- State Key Laboratory of Environment-friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang 621010, P. R. China
| |
Collapse
|
9
|
Khan H. In situ nitrogen-doped graphene-TiO 2 nano-hybrid as an efficient photocatalyst for pollutant degradation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:45383-45398. [PMID: 38963620 DOI: 10.1007/s11356-024-34114-y] [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: 01/07/2024] [Accepted: 06/20/2024] [Indexed: 07/05/2024]
Abstract
To solve environmental-related issues (wastewater remediation, energy conservation and air purification) caused by rapid urbanization and industrialization, synthesis of novel and modified nanostructured photocatalyst has received increasing attention in recent years. We herein report the facile synthesis of in situ nitrogen-doped chemically anchored TiO2 with graphene through sol-gel method. The structural analysis using X-ray diffraction showed that the crystalline nitrogen-doped graphene-titanium dioxide (N-GT) nanocomposite is mainly composed of anatase with minor brookite phase. Raman spectroscopy revealed the graphene characteristic band presence at low intensity level in addition to the main bands of anatase TiO2. X-ray photoelectron spectroscopy analysis disclosed the chemical bonding of TiO2 with graphene via Ti-O-C linkage, also the substitution of nitrogen dopant in both TiO2 lattice and into the skeleton of graphene nanoflakes. UV-Vis absorption spectroscopy analysis established that the modified material can efficiently absorb the longer wavelength range photons due to its narrowed band gap. The N0.06-GT material showed the highest degradation efficiency over methylene blue (MB, ∼98%) under UV and sulfamethoxazole (SMX, ∼ 90.0%) under visible light irradiation. The increased activity of the composite is credited to the synergistic effect of high surface area via greater adsorption capacity, narrowed band gap via increased photon absorption, and reduced e-/h+ recombination via good electron acceptability of graphene nanoflakes and defect sites (Ti3+ and oxygen vacancy (Vo)). The ROS experiments further depict that primarily hydroxyl radicals (OH•) and superoxide anions (O2•-) are responsible for the pollutant degradation in the process redox reactions. In summary, our findings specify new insight into the fabrication of this new material whose efficiency can be further tested in applications like H2 production, CO2 conversion to value-added products, and in energy conservation and storage.
Collapse
Affiliation(s)
- Hayat Khan
- Department of Chemical Engineering, King Faisal University, P.O. Box 380, Al-Ahsa, 31982, Kingdom of Saudi Arabia.
- Department of Chemical Engineering, McGill University, Montreal, Quebec, H3A 2B2, Canada.
| |
Collapse
|
10
|
Liu J, Zhang S, Long X, Jin X, Zhu Y, Duan S, Zhao J. Triazine and Fused Thiophene-Based Donor-Acceptor Type Semiconducting Conjugated Polymer for Enhanced Visible-Light-Induced H 2 Production. Molecules 2024; 29:2807. [PMID: 38930870 PMCID: PMC11206750 DOI: 10.3390/molecules29122807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Revised: 06/05/2024] [Accepted: 06/08/2024] [Indexed: 06/28/2024] Open
Abstract
Conjugated polymers have attracted significant attention in the field of photocatalysis due to their exceptional properties, including versatile optimization, cost-effectiveness, and structure stability. Herein, two conjugated porous polymers, PhIN-CPP and ThIN-CPP, based on triazines, were meticulously designed and successfully synthesized using benzene and thiophene as building blocks. Based on UV diffuse reflection spectra, the photonic band gaps of PhIN-CPP and ThIN-CPP were calculated as 2.05 eV and 1.79 eV. The PhIN-CPP exhibited a high hydrogen evolution rate (HER) of 5359.92 μmol·g-1·h-1, which is 10 times higher than that of Thin-CPP (538.49 μmol·g-1·h-1). The remarkable disparity in the photocatalytic performance can be primarily ascribed to alterations in the band structure of the polymers, which includes its more stable benzene units, fluffier structure, larger specific surface area, most pronounced absorption occurring in the visible region and highly extended conjugation with a high density of electrons. The ΔEST values for PhIN-CPP and ThIN-CPP were calculated as 0.79 eV and 0.80 eV, respectively, based on DFT and TD-DFT calculations, which revealed that the incorporation of triazine units in the as-prepared CMPs could enhance the charge transfer via S1 ↔ T1 and was beneficial to the photocatalytic decomposition of H2O. This study presents a novel concept for developing a hybrid system for preparation of H2 by photocatalysis with effectiveness, sustainability, and economy.
Collapse
Affiliation(s)
- Jian Liu
- College of Agriculture and Bioengineering, Heze University, Heze 274000, China;
- Institute of Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 570100, China
| | - Shengling Zhang
- Department of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, China;
| | - Xinshu Long
- Department of Chemistry and Engineering, Heze University, Heze 274500, China; (X.L.); (X.J.); (Y.Z.)
| | - Xiaomin Jin
- Department of Chemistry and Engineering, Heze University, Heze 274500, China; (X.L.); (X.J.); (Y.Z.)
| | - Yangying Zhu
- Department of Chemistry and Engineering, Heze University, Heze 274500, China; (X.L.); (X.J.); (Y.Z.)
| | - Shengxia Duan
- Department of Chemistry and Engineering, Heze University, Heze 274500, China; (X.L.); (X.J.); (Y.Z.)
- CAS Key Laboratory of Photovoltaic and Energy Conservation Materials, Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - Jinsheng Zhao
- Department of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, China;
| |
Collapse
|
11
|
Le PH, Vy TTT, Thanh VV, Hieu DH, Tran QT, Nguyen NVT, Uyen NN, Tram NTT, Toan NC, Xuan LT, Tuyen LTC, Kien NT, Hu YM, Jian SR. Facile Preparation Method of TiO 2/Activated Carbon for Photocatalytic Degradation of Methylene Blue. MICROMACHINES 2024; 15:714. [PMID: 38930684 PMCID: PMC11205648 DOI: 10.3390/mi15060714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 05/20/2024] [Accepted: 05/27/2024] [Indexed: 06/28/2024]
Abstract
The development of nanocomposite photocatalysts with high photocatalytic activity, cost-effectiveness, a simple preparation process, and scalability for practical applications is of great interest. In this study, nanocomposites of TiO2 Degussa P25 nanoparticles/activated carbon (TiO2/AC) were prepared at various mass ratios of (4:1), (3:2), (2:3), and (1:4) by a facile process involving manual mechanical pounding, ultrasonic-assisted mixing in an ethanol solution, paper filtration, and mild thermal annealing. The characterization methods included XRD, SEM-EDS, Raman, FTIR, XPS, and UV-Vis spectroscopies. The effects of TiO2/AC mass ratios on the structural, morphological, and photocatalytic properties were systematically studied in comparison with bare TiO2 and bare AC. TiO2 nanoparticles exhibited dominant anatase and minor rutile phases and a crystallite size of approximately 21 nm, while AC had XRD peaks of graphite and carbon and a crystallite size of 49 nm. The composites exhibited tight decoration of TiO2 nanoparticles on micron-/submicron AC particles, and uniform TiO2/AC composites were obtained, as evidenced by the uniform distribution of Ti, O, and C in an EDS mapping. Moreover, Raman spectra show the typical vibration modes of anatase TiO2 (e.g., E1g(1), B1g(1), Eg(3)) and carbon materials with D and G bands. The TiO2/AC with (4:1), (3:2), and (2:3) possessed higher reaction rate constants (k) in photocatalytic degradation of methylene blue (MB) than that of either TiO2 or AC. Among the investigated materials, TiO2/AC = 4:1 achieved the highest photocatalytic activity with a high k of 55.2 × 10-3 min-1 and an MB removal efficiency of 96.6% after 30 min of treatment under UV-Vis irradiation (120 mW/cm2). The enhanced photocatalytic activity for TiO2/AC is due to the synergistic effect of the high adsorption capability of AC and the high photocatalytic activity of TiO2. Furthermore, TiO2/AC promotes the separation of photoexcited electron/hole (e-/h+) pairs to reduce their recombination rate and thus enhance photocatalytic activity. The optimal TiO2/AC composite with a mass ratio of 4/1 is suggested for treating industrial or household wastewater with organic pollutants.
Collapse
Affiliation(s)
- Phuoc Huu Le
- Center for Plasma and Thin Film Technologies, Ming Chi University of Technology, New Taipei City 24301, Taiwan
- International Ph.D. Program in Plasma and Thin Film Technology, Ming Chi University of Technology, New Taipei City 24301, Taiwan
- Faculty of Basic Sciences, Can Tho University of Medicine and Pharmacy, 179 Nguyen Van Cu Street, Can Tho City 900000, Vietnam; (N.N.U.); (N.T.T.T.)
| | - Tran Thi Thuy Vy
- Faculty of Pharmacy, Can Tho University of Medicine and Pharmacy, 179 Nguyen Van Cu Street, Can Tho City 900000, Vietnam; (T.T.T.V.); (V.V.T.); (D.H.H.); (Q.-T.T.); (N.-V.T.N.)
| | - Vo Van Thanh
- Faculty of Pharmacy, Can Tho University of Medicine and Pharmacy, 179 Nguyen Van Cu Street, Can Tho City 900000, Vietnam; (T.T.T.V.); (V.V.T.); (D.H.H.); (Q.-T.T.); (N.-V.T.N.)
| | - Duong Hoang Hieu
- Faculty of Pharmacy, Can Tho University of Medicine and Pharmacy, 179 Nguyen Van Cu Street, Can Tho City 900000, Vietnam; (T.T.T.V.); (V.V.T.); (D.H.H.); (Q.-T.T.); (N.-V.T.N.)
| | - Quang-Thinh Tran
- Faculty of Pharmacy, Can Tho University of Medicine and Pharmacy, 179 Nguyen Van Cu Street, Can Tho City 900000, Vietnam; (T.T.T.V.); (V.V.T.); (D.H.H.); (Q.-T.T.); (N.-V.T.N.)
| | - Ngoc-Van Thi Nguyen
- Faculty of Pharmacy, Can Tho University of Medicine and Pharmacy, 179 Nguyen Van Cu Street, Can Tho City 900000, Vietnam; (T.T.T.V.); (V.V.T.); (D.H.H.); (Q.-T.T.); (N.-V.T.N.)
| | - Ngo Ngoc Uyen
- Faculty of Basic Sciences, Can Tho University of Medicine and Pharmacy, 179 Nguyen Van Cu Street, Can Tho City 900000, Vietnam; (N.N.U.); (N.T.T.T.)
| | - Nguyen Thi Thu Tram
- Faculty of Basic Sciences, Can Tho University of Medicine and Pharmacy, 179 Nguyen Van Cu Street, Can Tho City 900000, Vietnam; (N.N.U.); (N.T.T.T.)
| | - Nguyen Chi Toan
- Faculty of Pharmacy and Nursing, Tay Do University, 68 Tran Chien Street, Can Tho City 900000, Vietnam;
| | - Ly Tho Xuan
- Department of Materials Science and Engineering, National Taiwan University Science and Technology, Taipei City 106335, Taiwan;
| | - Le Thi Cam Tuyen
- Faculty of Chemical Engineering, Can Tho University, 3/2 Street, Ninh Kieu District, Can Tho City 900000, Vietnam;
| | - Nguyen Trung Kien
- Faculty of Medicine, Can Tho University of Medicine and Pharmacy, 179 Nguyen Van Cu Street, Can Tho City 900000, Vietnam;
| | - Yu-Min Hu
- Department of Applied Physics, National University of Kaohsiung, Kaohsiung 81148, Taiwan;
| | - Sheng-Rui Jian
- Department of Materials Science and Engineering, I-Shou University, Kaohsiung 84001, Taiwan
| |
Collapse
|
12
|
Zhao D, Tang X, Liu P, Huang Q, Li T, Ju L. Recent Progress of Ion-Modified TiO 2 for Enhanced Photocatalytic Hydrogen Production. Molecules 2024; 29:2347. [PMID: 38792207 PMCID: PMC11123945 DOI: 10.3390/molecules29102347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Revised: 05/13/2024] [Accepted: 05/14/2024] [Indexed: 05/26/2024] Open
Abstract
Harnessing solar energy to produce hydrogen through semiconductor-mediated photocatalytic water splitting is a promising avenue to address the challenges of energy scarcity and environmental degradation. Ever since Fujishima and Honda's groundbreaking work in photocatalytic water splitting, titanium dioxide (TiO2) has garnered significant interest as a semiconductor photocatalyst, prized for its non-toxicity, affordability, superior photocatalytic activity, and robust chemical stability. Nonetheless, the efficacy of solar energy conversion is hampered by TiO2's wide bandgap and the swift recombination of photogenerated carriers. In pursuit of enhancing TiO2's photocatalytic prowess, a panoply of modification techniques has been explored over recent years. This work provides an extensive review of the strategies employed to augment TiO2's performance in photocatalytic hydrogen production, with a special emphasis on foreign dopant incorporation. Firstly, we delve into metal doping as a key tactic to boost TiO2's capacity for efficient hydrogen generation via water splitting. We elaborate on the premise that metal doping introduces discrete energy states within TiO2's bandgap, thereby elevating its visible light photocatalytic activity. Following that, we evaluate the role of metal nanoparticles in modifying TiO2, hailed as one of the most effective strategies. Metal nanoparticles, serving as both photosensitizers and co-catalysts, display a pronounced affinity for visible light absorption and enhance the segregation and conveyance of photogenerated charge carriers, leading to remarkable photocatalytic outcomes. Furthermore, we consolidate perspectives on the nonmetal doping of TiO2, which tailors the material to harness visible light more efficiently and bolsters the separation and transfer of photogenerated carriers. The incorporation of various anions is summarized for their potential to propel TiO2's photocatalytic capabilities. This review aspires to compile contemporary insights on ion-doped TiO2, propelling the efficacy of photocatalytic hydrogen evolution and anticipating forthcoming advancements. Our work aims to furnish an informative scaffold for crafting advanced TiO2-based photocatalysts tailored for water-splitting applications.
Collapse
Affiliation(s)
- Dongqiu Zhao
- School of Physics and Electric Engineering, Anyang Normal University, Anyang 455000, China; (D.Z.); (Q.H.); (T.L.)
| | - Xiao Tang
- Institute of Materials Physics and Chemistry, College of Science, Nanjing Forestry University, Nanjing 210037, China;
| | - Penglan Liu
- School of Science and Technology, Beijing Normal University•Hong Kong Baptist University United International College, Zhuhai 519087, China;
| | - Qiao Huang
- School of Physics and Electric Engineering, Anyang Normal University, Anyang 455000, China; (D.Z.); (Q.H.); (T.L.)
| | - Tingxian Li
- School of Physics and Electric Engineering, Anyang Normal University, Anyang 455000, China; (D.Z.); (Q.H.); (T.L.)
| | - Lin Ju
- School of Physics and Electric Engineering, Anyang Normal University, Anyang 455000, China; (D.Z.); (Q.H.); (T.L.)
| |
Collapse
|
13
|
Zhang Z, Cui Z, Xu Y, Ghazzal MN, Colbeau-Justin C, Pan D, Wu W. A Facile Strategy for the Preparation of N-Doped TiO 2 with Oxygen Vacancy via the Annealing Treatment with Urea. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:818. [PMID: 38786775 PMCID: PMC11123904 DOI: 10.3390/nano14100818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 04/29/2024] [Accepted: 05/02/2024] [Indexed: 05/25/2024]
Abstract
Although titanium dioxide (TiO2) has a wide range of potential applications, the photocatalytic performance of TiO2 is limited by both its limited photoresponse range and fast recombination of the photogenerated charge carriers. In this work, the preparation of nitrogen (N)-doped TiO2 accompanied by the introduction of oxygen vacancy (Vo) has been achieved via a facile annealing treatment with urea as the N source. During the annealing treatment, the presence of urea not only realizes the N-doping of TiO2 but also creates Vo in N-doped TiO2 (N-TiO2), which is also suitable for commercial TiO2 (P25). Unexpectedly, the annealing treatment-induced decrease in the specific surface area of N-TiO2 is inhibited by the N-doping and, thus, more active sites are maintained. Therefore, both the N-doping and formation of Vo as well as the increased active sites contribute to the excellent photocatalytic performance of N-TiO2 under visible light irradiation. Our work offers a facile strategy for the preparation of N-TiO2 with Vo via the annealing treatment with urea.
Collapse
Affiliation(s)
- Zhe Zhang
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
| | - Zhenpeng Cui
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
- Frontiers Science Center for Rare Isotopes, Lanzhou University, Lanzhou 730000, China
| | - Yinghao Xu
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
| | | | | | - Duoqiang Pan
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
- Frontiers Science Center for Rare Isotopes, Lanzhou University, Lanzhou 730000, China
| | - Wangsuo Wu
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
- Frontiers Science Center for Rare Isotopes, Lanzhou University, Lanzhou 730000, China
| |
Collapse
|
14
|
Chinnam B, Dasagiri CS, Araga R. Synthesis and preliminary evaluation of Ag-TiO 2/CNT hybrid nanocomposite for the degradation of polystyrene microplastics under solar irradiation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:32863-32874. [PMID: 38668952 DOI: 10.1007/s11356-024-33438-z] [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: 01/30/2024] [Accepted: 04/19/2024] [Indexed: 05/29/2024]
Abstract
Currently, microplastics (MPs) are considered as emerging aqueous pollutants. However, existing methods for the separation and treatment of MPs from an aquatic environment are limited by their low efficiency. Advanced oxidation processes (AOPs) are novel techniques that employ photo-induced electron/hole pairs to generate active radicals for MP mineralization. Thus, in this study, a photocatalyst, i.e., Ag+ ion-doped TiO2, heterojunctioned with carbon nanotubes (CNT), was synthesized to study the degradation of typical MPs such as polystyrene (PS) under solar irradiation. Effectiveness of the prepared photocatalyst for the PS degradation was estimated through FESEM, FTIR, total organic carbon (TOC) analyzer, and gas chromatography-mass spectroscopy (GC-MS). Quantitatively, 31.7% degradation of PS microbeads was achieved within 48 h. Therefore, this study provides an efficient and cost-effective strategy for the degradation of MPs from the aqueous medium.
Collapse
Affiliation(s)
- Bhagyalakshmi Chinnam
- Department of Chemical Engineering, National Institute of Technology Warangal, Warangal, Telangana, India, 506004
| | - Chandra Shekhar Dasagiri
- Department of Chemical Engineering, National Institute of Technology Warangal, Warangal, Telangana, India, 506004
| | - Ramya Araga
- Department of Chemical Engineering, National Institute of Technology Warangal, Warangal, Telangana, India, 506004.
| |
Collapse
|
15
|
Koranteng-Mantey E, Kessie C, Selorm Agorku E, Kwaansa-Ansah EE, Osei-Bonsu Oppong S, Opoku F. Interfacial Electronic States of GeC/g-C 3N 4 van der Waal Heterostructure with Promising Photocatalytic Activity via Hydrogenation. Chemphyschem 2024; 25:e202300947. [PMID: 38335116 DOI: 10.1002/cphc.202300947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 01/19/2024] [Accepted: 02/09/2024] [Indexed: 02/12/2024]
Abstract
The bandgap of most known two-dimensional materials can be tuned by hydrogenation, although certain 2D materials lack a sufficient wide bandgap. Currently, it would be perfect to design non-toxic, low-cost, and high-performance photocatalysts for photocatalytic water splitting via hydrogenation. We systematically examine the impact of hydrogenation on the optical and electronic characteristics of GeC/g-C3N4 vdW heterostructures (vdWHs) with four different stacking patterns using first-principles calculations. The phonon spectra, interlayer distance, binding energies and ab initio molecular dynamics calculations show the kinetic, mechanical, and thermal stability of GeC/g-C3N4 vdWH after hydrogenation at 300, 500 and 800 K and possesses anisotropic Poisson's ratio, Young's and bulk modulus, suggesting that it's a promising candidate for experimental fabrication. According to an investigation of its electronic properties, GeC/g-C3N4 vdWH has a bandgap of 1.28 eV, but hydrogenation dramatically increases it to 2.47 eV. As a result of interface-induced electronic doping, the electronic states in g-C3N4 might be significantly adjusted by coming into contact with hydrogenated GeC sheets. The vdWH exhibits a type-II semiconductor, which can enhance the spatial separation of electron-hole pairs and has a strong red-shift of absorption coefficient than those of the constituent monolayers. The high potential drop caused by the significant valence and conduction band offsets effectively separated the charge carriers. The absorption coefficient of GeCH2/g-C3N4 vdWH is highly influenced by a biaxial compressive strain more than the biaxial tensile strain. Our theoretical research implies that the hydrogenated GeCH2/g-C3N4 vdWH possesses tunable optical and electronic behaviour for use as a hole-transport material in solar energy harvesting, nanoelectronic and optoelectronic devices.
Collapse
Affiliation(s)
- Eugenia Koranteng-Mantey
- Department of Chemistry, Faculty of Physical and Computational Sciences, College of Science, Kwame Nkrumah University of Science and Technology, UP, Kumasi, Ghana
| | - Charles Kessie
- Department of Chemistry, Faculty of Physical and Computational Sciences, College of Science, Kwame Nkrumah University of Science and Technology, UP, Kumasi, Ghana
| | - Eric Selorm Agorku
- Department of Chemistry, Faculty of Physical and Computational Sciences, College of Science, Kwame Nkrumah University of Science and Technology, UP, Kumasi, Ghana
| | - Edward Ebow Kwaansa-Ansah
- Department of Chemistry, Faculty of Physical and Computational Sciences, College of Science, Kwame Nkrumah University of Science and Technology, UP, Kumasi, Ghana
| | | | - Francis Opoku
- Department of Chemistry, Faculty of Physical and Computational Sciences, College of Science, Kwame Nkrumah University of Science and Technology, UP, Kumasi, Ghana
| |
Collapse
|
16
|
Ly HN, Parasuraman V, Lee H, Sheraz M, Anus A, Lee WR, Kim S. Enhancing air treatment through controlled fabrication of transition metal-doped titanium dioxide nanocomposites for photocatalytic toluene degradation. CHEMOSPHERE 2024; 351:141261. [PMID: 38244873 DOI: 10.1016/j.chemosphere.2024.141261] [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: 11/01/2023] [Revised: 12/18/2023] [Accepted: 01/17/2024] [Indexed: 01/22/2024]
Abstract
Rapid industrial growth and urbanization have resulted in a significant rise in environmental pollution issues, particularly indoor air pollutants. As a result, it is crucial to design and develop technologies and/or catalysts that are not only cost-effective but also promising high performance and practical applicability. However, achieving this goal has been so far remained a challenging task. Herein, a series of transition metal M - TiO2 (M = W, Fe, Mn) nanocrystals was prepared for photocatalytic degradation of volatile organic compounds (VOCs), i.e., toluene. Of the nanocomposites tested, W-TiO2 showed significantly improved photocatalytic activity for VOC degradation under UV irradiation compared to the others. In particular, the optimized W dopant amount of 0.5 wt% resulted in the outstanding degradation performance of toluene (96%) for the obtained W-TiO2(0.5%) nanocomposite. Moreover, W-TiO2(0.5%) nanocomposite exhibited good stability for 32 h working under high toluene concentration (10 ppm) compared to the pristine TiO2. The current work demonstrates the potential usage of M - TiO2 nanocrystals, particularly W-TiO2(0.5%), as a promising photocatalyst for efficient VOCs degradation.
Collapse
Affiliation(s)
- Huyen Ngoc Ly
- Department of Chemistry, Hallym University, Chuncheon, 24252, Republic of Korea; Research Center for Climate Change and Energy, Hallym University, Chuncheon, 24252, Republic of Korea; Nano-InnoTek Corporation, 123, Digital-ro 26-gil, Guro-gu, Seoul, Republic of Korea.
| | - Vijayarohini Parasuraman
- Research Center for Climate Change and Energy, Hallym University, Chuncheon, 24252, Republic of Korea; Nano-InnoTek Corporation, 123, Digital-ro 26-gil, Guro-gu, Seoul, Republic of Korea
| | - Hojae Lee
- Department of Chemistry and Institute of Applied Chemistry, Hallym University, Chuncheon, 24252, Republic of Korea
| | - Mahshab Sheraz
- Advanced Textile R&D Department, Republic of Korea Institute of Industrial Technology (KITECH), Ansan-si, 15588, Republic of Korea
| | - Ali Anus
- Department of Chemistry, Inha University, Incheon, 22212, Republic of Korea
| | - Woo Ram Lee
- Department of Chemistry and Institute of Applied Chemistry, Hallym University, Chuncheon, 24252, Republic of Korea.
| | - Seungdo Kim
- Research Center for Climate Change and Energy, Hallym University, Chuncheon, 24252, Republic of Korea; Nano-InnoTek Corporation, 123, Digital-ro 26-gil, Guro-gu, Seoul, Republic of Korea.
| |
Collapse
|
17
|
Ali S, Ismail PM, Khan M, Dang A, Ali S, Zada A, Raziq F, Khan I, Khan MS, Ateeq M, Khan W, Bakhtiar SH, Ali H, Wu X, Shah MIA, Vinu A, Yi J, Xia P, Qiao L. Charge transfer in TiO 2-based photocatalysis: fundamental mechanisms to material strategies. NANOSCALE 2024; 16:4352-4377. [PMID: 38275275 DOI: 10.1039/d3nr04534j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2024]
Abstract
Semiconductor-based photocatalysis has attracted significant interest due to its capacity to directly exploit solar energy and generate solar fuels, including water splitting, CO2 reduction, pollutant degradation, and bacterial inactivation. However, achieving the maximum efficiency in photocatalytic processes remains a challenge owing to the speedy recombination of electron-hole pairs and the limited use of light. Therefore, significant endeavours have been devoted to addressing these issues. Specifically, well-designed heterojunction photocatalysts have been demonstrated to exhibit enhanced photocatalytic activity through the physical distancing of electron-hole pairs generated during the photocatalytic process. In this review, we provide a systematic discussion ranging from fundamental mechanisms to material strategies, focusing on TiO2-based heterojunction photocatalysts. Current efforts are focused on developing heterojunction photocatalysts based on TiO2 for a variety of photocatalytic applications, and these projects are explained and assessed. Finally, we offer a concise summary of the main insights and challenges in the utilization of TiO2-based heterojunction photocatalysts for photocatalysis. We expect that this review will serve as a valuable resource to improve the efficiency of TiO2-based heterojunctions for energy generation and environmental remediation.
Collapse
Affiliation(s)
- Sharafat Ali
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology, Huzhou 313001, China
- School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, PR China.
| | - Pir Muhammad Ismail
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology, Huzhou 313001, China
- School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, PR China.
| | - Muhammad Khan
- Shannxi Engineering Laboratory for Graphene New Carbon Materials and Applications, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, PR China
| | - Alei Dang
- Shannxi Engineering Laboratory for Graphene New Carbon Materials and Applications, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, PR China
| | - Sajjad Ali
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology, Huzhou 313001, China
- Energy, Water and Environment Lab, College of Humanities and Sciences, Prince Sultan University, Riyadh 11586, Saudi Arabia
| | - Amir Zada
- Department of Chemistry, Abdul Wali Khan University Mardan, Khyber Pakhtunkhwa, 23200, Pakistan.
| | - Fazal Raziq
- School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, PR China.
| | - Imran Khan
- School of Physics and Electronics, Hunan Key Laboratory for Super-microstructure and Ultrafast Process, Central South University, Changsha, 410083, People's Republic of China
| | - Muhammad Shakeel Khan
- Department of Chemistry, Abdul Wali Khan University Mardan, Khyber Pakhtunkhwa, 23200, Pakistan.
| | - Muhammad Ateeq
- Department of Chemistry, Abdul Wali Khan University Mardan, Khyber Pakhtunkhwa, 23200, Pakistan.
| | - Waliullah Khan
- Department of Chemistry, Abdul Wali Khan University Mardan, Khyber Pakhtunkhwa, 23200, Pakistan.
| | - Syedul Hasnain Bakhtiar
- School of Integrated Circuits, Wuhan National Laboratory for Optoelectronics, Engineering Research Center for Functional Ceramics of the Ministry of Education, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Haider Ali
- School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, PR China.
| | - Xiaoqiang Wu
- School of Mechanical Engineering, Chengdu University, Chengdu 610106, China
| | - Muhammad Ishaq Ali Shah
- Department of Chemistry, Abdul Wali Khan University Mardan, Khyber Pakhtunkhwa, 23200, Pakistan.
| | - Ajayan Vinu
- Global Innovative Centre for Advanced Nanomaterials, School of Engineering, The University of Newcastle, Callaghan, NSW 2308, Australia
| | - Jiabao Yi
- Global Innovative Centre for Advanced Nanomaterials, School of Engineering, The University of Newcastle, Callaghan, NSW 2308, Australia
| | - Pengfei Xia
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology, Huzhou 313001, China
- School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, PR China.
| | - Liang Qiao
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology, Huzhou 313001, China
- School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, PR China.
| |
Collapse
|
18
|
Sohail M, Rauf S, Irfan M, Hayat A, Alghamdi MM, El-Zahhar AA, Ghernaout D, Al-Hadeethi Y, Lv W. Recent developments, advances and strategies in heterogeneous photocatalysts for water splitting. NANOSCALE ADVANCES 2024; 6:1286-1330. [PMID: 38419861 PMCID: PMC10898449 DOI: 10.1039/d3na00442b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 12/28/2023] [Indexed: 03/02/2024]
Abstract
Photocatalytic water splitting (PWS) is an up-and-coming technology for generating sustainable fuel using light energy. Significant progress has been made in the developing of PWS innovations over recent years. In addition to various water-splitting (WS) systems, the focus has primarily been on one- and two-steps-excitation WS systems. These systems utilize singular or composite photocatalysts for WS, which is a simple, feasible, and cost-effective method for efficiently converting prevalent green energy into sustainable H2 energy on a large commercial scale. The proposed principle of charge confinement and transformation should be implemented dynamically by conjugating and stimulating the photocatalytic process while ensuring no unintentional connection at the interface. This study focuses on overall water splitting (OWS) using one/two-steps excitation and various techniques. It also discusses the current advancements in the development of new light-absorbing materials and provides perspectives and approaches for isolating photoinduced charges. This article explores multiple aspects of advancement, encompassing both chemical and physical changes, environmental factors, different photocatalyst types, and distinct parameters affecting PWS. Significant factors for achieving an efficient photocatalytic process under detrimental conditions, (e.g., strong light absorption, and synthesis of structures with a nanometer scale. Future research will focus on developing novel materials, investigating potential synthesis techniques, and improving existing high-energy raw materials. The endeavors aim is to enhance the efficiency of energy conversion, the absorption of radiation, and the coherence of physiochemical processes.
Collapse
Affiliation(s)
- Muhammad Sohail
- Huzhou Key Laboratory of Smart and Clean Energy, Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China Huzhou 313001 P. R. China
| | - Sana Rauf
- College of Physics and Optoelectronic Engineering, Shenzhen University Shenzhen 518060 PR China
| | - Muhammad Irfan
- Department of Chemistry, Hazara University Mansehra 21300 Pakistan
| | - Asif Hayat
- College of Chemistry and Life Sciences, Zhejiang Normal University 321004 Jinhua Zhejiang P. R. China
| | - Majed M Alghamdi
- Department of Chemistry, College of Science, King Khalid University P. O. Box 9004 Abha 61413 Saudi Arabia
| | - Adel A El-Zahhar
- Department of Chemistry, College of Science, King Khalid University P. O. Box 9004 Abha 61413 Saudi Arabia
| | - Djamel Ghernaout
- Chemical Engineering Department, College of Engineering, University of Ha'il PO Box 2440 Ha'il 81441 Saudi Arabia
- Chemical Engineering Department, Faculty of Engineering, University of Blida PO Box 270 Blida 09000 Algeria
| | - Yas Al-Hadeethi
- Physics Department, Faculty of Science, King Abdulaziz University Jeddah 21589 Saudi Arabia
- Lithography in Devices Fabrication and Development Research Group, Deanship of Scientific Research, King Abdulaziz University Jeddah 21589 Saudi Arabia
- King Fahd Medical Research Center (KFMRC), King Abdulaziz University Jeddah 21589 Saudi Arabia
| | - Weiqiang Lv
- Huzhou Key Laboratory of Smart and Clean Energy, Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China Huzhou 313001 P. R. China
| |
Collapse
|
19
|
Kim G, Back H, Kong J, Naseer L, Jeong J, Son J, Lee J, Kang SO, Lee K. Chemically Engineered Titanium Oxide Interconnecting Layer for Multijunction Polymer Solar Cells. Polymers (Basel) 2024; 16:595. [PMID: 38475280 DOI: 10.3390/polym16050595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 02/16/2024] [Accepted: 02/20/2024] [Indexed: 03/14/2024] Open
Abstract
We report chemically tunable n-type titanium oxides using ethanolamine as a nitrogen dopant source. As the amount of ethanolamine added to the titanium oxide precursor during synthesis increases, the Fermi level of the resulting titanium oxides (ethanolamine-incorporated titanium oxides) significantly changes from -4.9 eV to -4.3 eV, and their free charge carrier densities are enhanced by two orders of magnitudes, reaching up to 5 × 1018 cm-3. Unexpectedly, a basic ethanolamine reinforces not only the n-type properties of titanium oxides, but also their basicity, which facilitates acid-base ionic junctions in contact with acidic materials. The enhanced charge carrier density and basicity of the chemically tuned titanium oxides enable multi-junction solar cells to have interconnecting junctions consisting of basic n-type titanium oxides and acidic p-type PEDOT:PSS to gain high open-circuit voltages of 1.44 V and 2.25 V from tandem and triple architectures, respectively.
Collapse
Affiliation(s)
- Geunjin Kim
- Hanwha Solutions, Seoul 04541, Republic of Korea
| | | | - Jaemin Kong
- Department of Physics, Research Institute of Natural Sciences, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Laiba Naseer
- Department of Physics, Research Institute of Natural Sciences, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Jiwon Jeong
- Department of Physics, Research Institute of Natural Sciences, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Jaehyoung Son
- Department of Physics, Research Institute of Natural Sciences, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Jongjin Lee
- Department of Physics, Research Institute of Natural Sciences, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Sung-Oong Kang
- Department of Chemical Engineering, Hanyang University, Ansan 15588, Republic of Korea
- MExplorer Co., Ltd., Ansan 15588, Republic of Korea
| | - Kwanghee Lee
- Department of Materials Science & Engineering, Gwangju Institute of Science and Technology, Gwangju 61005, Republic of Korea
- Heeger Center for Advanced Materials, Gwangju Institute of Science and Technology, Gwangju 61005, Republic of Korea
| |
Collapse
|
20
|
Yanagiyama K, Takimoto K, Dinh Le S, Nu Thanh Ton N, Taniike T. High-throughput experimentation for photocatalytic water purification in practical environments. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 342:122974. [PMID: 37981181 DOI: 10.1016/j.envpol.2023.122974] [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: 08/20/2023] [Revised: 10/26/2023] [Accepted: 11/14/2023] [Indexed: 11/21/2023]
Abstract
High-throughput screening instrument was developed for photocatalytic water purification, enabling the simultaneous testing of 132 photocatalytic reactions under uniform visible light irradiation, temperature control, and stirring. The instrument was used to investigate the effects of different catalysts (TiO2, ZnO, α-Fe2O3) and environmental waters (seawater, urban wastewater, and industrial wastewater) on dye degradation. It was observed environmental ions, particularly carbonate and phosphate ions, significantly reduced catalyst activity by inhibiting the adsorption of dye molecules. To develop effective catalysts for dye degradation in industrial wastewater, 15 types of noble metal nanoparticles (NPs) were supported on photocatalysts. The study found that noble metal NPs with high work functions and oxidation resistance, such as Au and Pt, exhibited higher activity even in the industrial wastewater, likely converting environmental ions into active species. These findings, based on 432 test results, demonstrate the effectiveness of the developed high-throughput screening instrument for optimizing photocatalytic water purification.
Collapse
Affiliation(s)
- Kyo Yanagiyama
- Graduate School of Advanced Science and Technology, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa, 923-1292, Japan
| | - Ken Takimoto
- Graduate School of Advanced Science and Technology, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa, 923-1292, Japan
| | - Son Dinh Le
- Graduate School of Advanced Science and Technology, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa, 923-1292, Japan
| | - Nhan Nu Thanh Ton
- Graduate School of Advanced Science and Technology, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa, 923-1292, Japan
| | - Toshiaki Taniike
- Graduate School of Advanced Science and Technology, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa, 923-1292, Japan.
| |
Collapse
|
21
|
Wu Y, Zhong W, Wang X, Wu W, Muddassir M, Daniel O, Raj Jayswal M, Prakash O, Dai Z, Ma A, Pan Y. New Transition Metal Coordination Polymers Derived from 2-(3,5-Dicarboxyphenyl)-6-carboxybenzimidazole as Photocatalysts for Dye and Antibiotic Decomposition. Molecules 2023; 28:7318. [PMID: 37959737 PMCID: PMC10648955 DOI: 10.3390/molecules28217318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 10/24/2023] [Accepted: 10/24/2023] [Indexed: 11/15/2023] Open
Abstract
Coordination polymers (CPs) are an assorted class of coordination complexes that are gaining attention for the safe and sustainable removal of organic dyes from wastewater discharge by either adsorption or photocatalytic degradation. Herein, three different coordination polymers with compositions [Ni(HL)(H2O)2·1.9H2O] (1), [Mn3(HL)(L)(μ3-OH)(H2O)(phen)2·2H2O] (2), and [Cd(HL)4(H2O)]·H2O (3) (H3L = 2-(3,5-dicarboxyphenyl)-6-carboxybenzimidazole; phen = 1,10-phenanthroline) have been synthesized and characterized spectroscopically and by single crystal X-ray diffraction. Single crystal X-ray diffraction results indicated that 1 forms a 2D layer-like framework, while 2 exhibits a 3-connected net with the Schläfli symbol of (44.6), and 3 displays a 3D supramolecular network in which two adjacent 2D layers are held by π···π interactions. All three compounds have been used as photocatalysts to catalyze the photodegradation of antibiotic dinitrozole (DTZ) and rhodamine B (RhB). The photocatalytic results suggested that the Mn-based CP 2 exhibited better photodecomposition of DTZ (91.1%) and RhB (95.0%) than the other two CPs in the time span of 45 min. The observed photocatalytic mechanisms have been addressed using Hirshfeld surface analyses.
Collapse
Affiliation(s)
- Yu Wu
- School of Chemistry and Environmental Engineering, Sichuan University of Science & Engineering, Zigong 643000, China
| | - Wenxu Zhong
- School of Chemistry and Environmental Engineering, Sichuan University of Science & Engineering, Zigong 643000, China
| | - Xin Wang
- School of Chemistry and Environmental Engineering, Sichuan University of Science & Engineering, Zigong 643000, China
| | - Weiping Wu
- School of Chemistry and Environmental Engineering, Sichuan University of Science & Engineering, Zigong 643000, China
| | - Mohd. Muddassir
- Department of Chemistry, College of Sciences, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Omoding Daniel
- Department of Chemistry, Faculty of Science, University of Lucknow, Lucknow 226007, India; (O.D.); (M.R.J.)
| | - Madhav Raj Jayswal
- Department of Chemistry, Faculty of Science, University of Lucknow, Lucknow 226007, India; (O.D.); (M.R.J.)
| | - Om Prakash
- Department of Chemistry, Faculty of Science, University of Lucknow, Lucknow 226007, India; (O.D.); (M.R.J.)
| | - Zhong Dai
- Guangdong Provincial Key Laboratory of Research and Development of Natural Drugs, and School of Pharmacy, Guangdong Medical University, Guangdong Medical University Key Laboratory of Research and Development of New Medical Materials, Dongguan 523808, China
| | - Aiqing Ma
- Guangdong Provincial Key Laboratory of Research and Development of Natural Drugs, and School of Pharmacy, Guangdong Medical University, Guangdong Medical University Key Laboratory of Research and Development of New Medical Materials, Dongguan 523808, China
| | - Ying Pan
- Guangdong Provincial Key Laboratory of Research and Development of Natural Drugs, and School of Pharmacy, Guangdong Medical University, Guangdong Medical University Key Laboratory of Research and Development of New Medical Materials, Dongguan 523808, China
| |
Collapse
|
22
|
Wang YX, Wang Y, Li J, Yu Y, Huang SL, Yang GY. Ru(N^N) 3-docked cationic covalent organic frameworks for enhanced sulfide and amine photooxidation. Dalton Trans 2023; 52:14100-14109. [PMID: 37743792 DOI: 10.1039/d3dt02345a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/26/2023]
Abstract
Covalent organic frameworks (COFs) have emerged as significant candidates for visible-light photocatalysis due to their ability to regulate performance which is achieved through the careful selection of building modules, framework conjugation, and post-modification. This report focused on the efficient transformation of an imine-linked I-COF into a π-conjugated quinoline-based Q-COF, which enhanced both the chemical stability and conjugation of the network. By methylating the pyridyl groups in the Q-COF, an N+-COF was obtained. Subsequently, the Ru(N^N)3-photosensitizer ([Ru(dcbpy)3]4-) was incorporated into the channels of the cationic N+-COF through electrostatic interactions, resulting in the formation of [Ru(dcbpy)3]4-⊂N+-COF. This composite exhibited exceptional photocatalytic activity, demonstrating high yields and selectivity in the oxidation of sulfides or amines to their respective products.
Collapse
Affiliation(s)
- Yan-Xia Wang
- MOE Key Laboratory of Cluster Science, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China.
| | - Ying Wang
- MOE Key Laboratory of Cluster Science, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China.
| | - Jing Li
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Yang Yu
- MOE Key Laboratory of Cluster Science, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China.
| | - Sheng-Li Huang
- MOE Key Laboratory of Cluster Science, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China.
| | - Guo-Yu Yang
- MOE Key Laboratory of Cluster Science, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China.
| |
Collapse
|
23
|
Perween S, Wissel K, Dallos Z, Weiss M, Ikeda Y, Vasala S, Strobel S, Schützendübe P, Jeschenko PM, Kolb U, Marschall R, Grabowski B, Glatzel P. Topochemical Fluorination of LaBaInO 4 to LaBaInO 3F 2, Their Optical Characterization, and Photocatalytic Activities for Hydrogen Evolution. Inorg Chem 2023; 62:16329-16342. [PMID: 37756217 DOI: 10.1021/acs.inorgchem.3c01682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/29/2023]
Abstract
We report on a nonoxidative topochemical route for the synthesis of a novel indate-based oxyfluoride, LaBaInO3F2, using a low-temperature reaction of Ruddlesden-Popper-type LaBaInO4 with polyvinylidene difluoride as a fluorinating agent. The reaction involves the replacement of oxide ions with fluoride ions as well as the insertion of fluoride ions into the interstitial sites. From the characterization via powder X-ray diffraction (PXRD) and Rietveld analysis as well as automated electron diffraction tomography (ADT), it is deduced that the fluorination results in a symmetry lowering from I4/mmm (139) to monoclinic C2/c (15) with an expansion perpendicular to the perovskite layers and a strong tilting of the octahedra in the ab plane. Disorder of the anions on the apical and interstitial sites seems to be favored. The most stable configuration for the anion ordering is estimated based on an evaluation of bond distances from the ADT measurements via bond valence sums (BVSs). The observed disordering of the anions in the oxyfluoride results in changes in the optical properties and thus shows that the topochemical anion modification can present a viable route to alter the optical properties. Partial densities of states (PDOSs) obtained from ab initio density functional theory (DFT) calculations reveal a bandgap modification upon fluoride-ion introduction which originates from the presence of the oxide anions on the interstitial sites. The photocatalytic performance of the oxide and oxyfluoride shows that both materials are photocatalytically active for hydrogen (H2) evolution.
Collapse
Affiliation(s)
- Shama Perween
- Institute for Materials Science, Materials Synthesis Group, University of Stuttgart, Heisenbergstrasse 3, Stuttgart 70569, Germany
- Institute for Materials Science, Technical University of Darmstadt, Alarich-Weiss-Straße 2, Darmstadt 64287, Germany
| | - Kerstin Wissel
- Institute for Materials Science, Materials Synthesis Group, University of Stuttgart, Heisenbergstrasse 3, Stuttgart 70569, Germany
| | - Zsolt Dallos
- Institute for Applied Geosciences, Technical University of Darmstadt, Schnittspahnstrasse 9, Darmstadt 64287, Germany
- Institute of Inorganic Chemistry and Analytical Chemistry, Johannes Gutenberg-University of Mainz, Duesbergweg 10-14, Mainz 55128, Germany
| | - Morten Weiss
- Department of Chemistry, University of Bayreuth, Universitätsstrasse 30, Bayreuth 95447, Germany
| | - Yuji Ikeda
- Institute for Materials Science, Department of Materials Design, University of Stuttgart, Pfaffenwaldring 55, Stuttgart 70569, Germany
| | - Sami Vasala
- ESRF - The European Synchrotron, 71 Avenue des Martyrs, Grenoble 38000, France
| | - Sabine Strobel
- Institute of Inorganic Chemistry, University of Stuttgart, Pfaffenwaldring 55, Stuttgart 70569, Germany
| | - Peter Schützendübe
- Max Planck Institute for Intelligent Systems, Stuttgart D-70569, Germany
| | | | - Ute Kolb
- Institute for Applied Geosciences, Technical University of Darmstadt, Schnittspahnstrasse 9, Darmstadt 64287, Germany
- Institute of Inorganic Chemistry and Analytical Chemistry, Johannes Gutenberg-University of Mainz, Duesbergweg 10-14, Mainz 55128, Germany
| | - Roland Marschall
- Department of Chemistry, University of Bayreuth, Universitätsstrasse 30, Bayreuth 95447, Germany
| | - Blazej Grabowski
- Institute for Materials Science, Department of Materials Design, University of Stuttgart, Pfaffenwaldring 55, Stuttgart 70569, Germany
| | - Pieter Glatzel
- ESRF - The European Synchrotron, 71 Avenue des Martyrs, Grenoble 38000, France
| |
Collapse
|
24
|
Jin Y, Wang J, Gao X, Ren F, Chen Z, Sun Z, Ren P. Spent Coffee Grounds Derived Carbon Loading C, N Doped TiO 2 for Photocatalytic Degradation of Organic Dyes. MATERIALS (BASEL, SWITZERLAND) 2023; 16:5137. [PMID: 37512411 PMCID: PMC10385829 DOI: 10.3390/ma16145137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 07/14/2023] [Accepted: 07/15/2023] [Indexed: 07/30/2023]
Abstract
Titanium dioxide (TiO2) is an ideal photocatalyst candidate due to its high activity, low toxicity and cost, and high chemical stability. However, its practical application in photocatalysis is seriously hindered by the wide band gap energy of TiO2 and the prone recombination of electron-hole pairs. In this study, C, N doped TiO2 were supported on spent coffee grounds-derived carbon (ACG) via in situ formation, which was denoted as C, N-TiO2@ACG. The obtained C, N-TiO2@ACG exhibits increased light absorption efficiency with the band gap energy decreasing from 3.31 eV of TiO2 to 2.34 eV, a higher specific surface area of 145.8 m2/g, and reduced recombination rates attributed to the synergistic effect of a spent coffee grounds-derived carbon substrate and C, N doping. Consequently, the optimal 1:1 C, N-TiO2@ACG delivers considerable photocatalytic activity with degradation efficiencies for methylene blue (MB) reaching 96.9% within 45 min, as well as a high reaction rate of 0.06348 min-1, approximately 4.66 times that of TiO2 (0.01361 min-1). Furthermore, it also demonstrated greatly enhanced photocatalytic efficiency towards methyl orange (MO) in the presence of MB compared with a single MO solution. This work provides a feasible and universal strategy of synchronous introducing nonmetal doping and biomass-derived carbon substrates to promote the photocatalytic performance of TiO2 for the degradation of organic dyes.
Collapse
Affiliation(s)
- Yanling Jin
- Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi'an University of Technology, Jinhua South Road No. 5, Xi'an 710048, China
- School of Materials Science and Engineering, Xi'an University of Technology, Jinhua South Road No. 5, Xi'an 710048, China
| | - Jiayi Wang
- Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi'an University of Technology, Jinhua South Road No. 5, Xi'an 710048, China
| | - Xin Gao
- Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi'an University of Technology, Jinhua South Road No. 5, Xi'an 710048, China
| | - Fang Ren
- Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi'an University of Technology, Jinhua South Road No. 5, Xi'an 710048, China
- School of Materials Science and Engineering, Xi'an University of Technology, Jinhua South Road No. 5, Xi'an 710048, China
| | - Zhengyan Chen
- Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi'an University of Technology, Jinhua South Road No. 5, Xi'an 710048, China
- School of Materials Science and Engineering, Xi'an University of Technology, Jinhua South Road No. 5, Xi'an 710048, China
| | - Zhenfeng Sun
- Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi'an University of Technology, Jinhua South Road No. 5, Xi'an 710048, China
| | - Penggang Ren
- Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi'an University of Technology, Jinhua South Road No. 5, Xi'an 710048, China
- School of Materials Science and Engineering, Xi'an University of Technology, Jinhua South Road No. 5, Xi'an 710048, China
| |
Collapse
|
25
|
Althabaiti SA, Khan Z, Narasimharao K, Bawaked SM, Al-Sheheri SZ, Mokhtar M, Malik MA. Selective Thermal and Photocatalytic Decomposition of Aqueous Hydrazine to Produce H 2 over Ag-Modified TiO 2 Nanomaterial. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2076. [PMID: 37513087 PMCID: PMC10383222 DOI: 10.3390/nano13142076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Revised: 07/06/2023] [Accepted: 07/10/2023] [Indexed: 07/30/2023]
Abstract
An Ag-modified TiO2 nanomaterial was prepared by a one-pot synthesis method using tetra butyl titanate, silver nitrate, and sodium hydroxide in water at 473 K for 3 h. X-ray diffraction, scanning electron microscopy, and transmission electron microscopy were used to determine the structure and morphology of the synthesized Ag-modified TiO2 nanomaterial. The diffuse reflectance UV-visible and photoluminescence spectroscopy results revealed that metallic Ag nanoparticles decreased the optical band gap and photoluminescence intensity of the TiO2. In addition, the Raman peak intensity and absorbance were increased after Ag modification onto TiO2. The photocatalytic efficiency of the synthesized samples was tested for decomposition of aqueous hydrazine solution under visible light irradiation. The photocatalytic efficiency of Ag-modified TiO2 nanomaterials was higher than that of bare TiO2 and Ag metal NPs due to the synergistic effect between the Ag metal and TiO2 structures. In addition, the surface plasmon resonance (SPR) electron transfer from Ag metal particles to the conduction band of TiO2 is responsible for superior activity of TiO2-Ag catalyst. The Ag-modified TiO2 nanomaterials offered a 100% H2 selectivity within 30 min of reaction time and an apparent rate constant of 0.018 min-1 with an activation energy of 34.4 kJ/mol under visible light radiation.
Collapse
Affiliation(s)
- Shaeel Ahmed Althabaiti
- Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
| | - Zaheer Khan
- Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
| | - Katabathini Narasimharao
- Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
| | - Salem Mohamed Bawaked
- Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
| | - Soad Zahir Al-Sheheri
- Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
| | - Mohamed Mokhtar
- Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
| | - Maqsood Ahmad Malik
- Department of Chemistry, Faculty of Natural Sciences, Jamia Millia Islamia, New Delhi-110025, India
| |
Collapse
|
26
|
Rajan ST, Senthilnathan J, Arockiarajan A. Sputter -coated N-enriched mixed metal oxides (Ta 2O 5-Nb 2O 5-N) composite: A resilient solar driven photocatalyst for water purification. JOURNAL OF HAZARDOUS MATERIALS 2023; 452:131283. [PMID: 37023577 DOI: 10.1016/j.jhazmat.2023.131283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 03/11/2023] [Accepted: 03/22/2023] [Indexed: 06/19/2023]
Abstract
This study demonstrated the formation of N-enriched mixed metal oxides (Ta2O5-Nb2O5-N and Ta2O5-Nb2O5) thin film composites used as photocatalysts to degrade P-Rosaniline Hydrochloride (PRH-Dye) dye under solar radiation. By controlling the N gas flow rate during the sputtering process, the N concentration in the Ta2O5-Nb2O5-N composite is significantly included, and demonstrated by XPS and HRTEM analysis. With the help of XPS and HRTEM investigations, it was determined that the addition of N to Ta2O5-Nb2O5-N significantly enhances the active sites. The Ta-O-N bond (N 1 s and Ta 4p3/2 spectra) was verified by the XPS spectra. Ta2O5-Nb2O5 was found to have a lattice interplanar distance (d-spacing) of 2.52, whereas Ta2O5-Nb2O5-N showed the 2.5 (620 planes). A sputter-coated Ta2O5-Nb2O5and Ta2O5-Nb2O5-N photocatalysts were prepared, and their photocatalytic activity was evaluated using PRH-Dye as a model pollutant under solar radiation by adding H2O2 (0.01 mol). The photocatalytic activity of the Ta2O5-Nb2O5-N composite was compared with TiO2 (P-25) and Ta2O5-Nb2O5. Ta2O5-Nb2O5-N showed very high photocatalytic activity compared to Degussa P-25 TiO2 and Ta2O5-Nb2O5 under solar radiation and confirmed the presence of N in Ta2O5-Nb2O5-N significantly increased the generation of ˙OH radicals (in pH 3, 7 and 9). With the use of LC/MS, the stable intermediates or metabolite created during the photooxidation of PRH-Dye were assessed. The results of this study will provide useful insights on how Ta2O5-Nb2O5-N influences the efficiency of water pollution remediation.
Collapse
Affiliation(s)
- S Thanka Rajan
- Department of Applied Mechanics, Indian Institute of Technology Madras, Chennai 600036, India
| | | | - A Arockiarajan
- Department of Applied Mechanics, Indian Institute of Technology Madras, Chennai 600036, India; Ceramic Technology Group -Center of Excellence in Materials and Manufacturing Futuristic Mobility, Indian Institute of Technology Madras (IIT Madras), Chennai 600036, India.
| |
Collapse
|
27
|
Deng G, Kang X, Yang Y, Wang L, Liu G. Skin B/N-doped anatase TiO 2 {001} nanoflakes for visible-light photocatalytic water oxidation. J Colloid Interface Sci 2023; 649:140-147. [PMID: 37348333 DOI: 10.1016/j.jcis.2023.06.046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 06/03/2023] [Accepted: 06/09/2023] [Indexed: 06/24/2023]
Abstract
The limited visible-light-responsive photoactivities of most doped wide-bandgap photocatalysts with widened absorption range have long been the obstacles for the efficient conversion of solar energy to chemical energy by photocatalysis. The weak transport ability of visible-light-induced low-energy charge carriers, and numerous recombination centers arising from the energy-band modifiers along the transport path are two major factors responsible for such a mismatch. A potential solution is to shorten the transport path of photo-induced charges in well-modulated light absorbers with low-dimensional structure and the spatially concentrated dopants underneath their surfaces. As a proof of concept, skin B/N-doped red anatase TiO2 {001} nanoflakes with the absorption edge up to 675 nm were synthesized in this study. Experimental results revealed that boron dopants in the TiO2 nanoflakes from the hydrolysis of nanosized TiB2 played a crucial role in controlling nitrogen doping in the surface layer of the nanoflakes. As visible light excitation occurs at the surface layer, the photons can be sufficiently absorbed by the formed energy levels at the surface layers, and the photogenerated charge carriers can effectively migrate to the surface, thus leading to efficient visible-light-responsive photocatalytic oxygen evolution activity from water oxidation.
Collapse
Affiliation(s)
- Guoqiang Deng
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China; School of Materials Science and Engineering, University of Science and Technology of China, 72 Wenhua Road, Shenyang 110016, China
| | - Xiangdong Kang
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China
| | - Yongqiang Yang
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China; School of Materials Science and Engineering, University of Science and Technology of China, 72 Wenhua Road, Shenyang 110016, China.
| | - Lianzhou Wang
- Nanomaterials Centre, School of Chemical Engineering and AIBN, The University of Queensland, St Lucia, Brisbane, QLD 4072, Australia
| | - Gang Liu
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China; School of Materials Science and Engineering, University of Science and Technology of China, 72 Wenhua Road, Shenyang 110016, China.
| |
Collapse
|
28
|
Xiong ZW, Meng YJ, Luo CB, Liu ZQ, Li DQ, Li J. Ti 4+-dopamine/sodium alginate multicomponent complex derived N-doped TiO 2@carbon nanocomposites for efficient removal of methylene blue. Int J Biol Macromol 2023:125200. [PMID: 37271270 DOI: 10.1016/j.ijbiomac.2023.125200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Revised: 05/20/2023] [Accepted: 05/31/2023] [Indexed: 06/06/2023]
Abstract
A one-pot route for the preparation of TiO2@carbon nanocomposite from Ti4+/polysaccharide coordination complex has been developed and shown advantages in operation, cost, environment, etc. However, the photodegradation rate of methylene blue needs to be improved. N-doping has been proven as an efficient means to enhance photodegradation performance. Thus, the present study upgraded the TiO2@carbon nanocomposite to N-doped TiO2@carbon nanocomposite (N-TiO2@C) from Ti4+-dopamine/sodium alginate multicomponent complex. The composites were characterized by FT-IR, XRD, XPS, UV-vis DRS, TG-DTA, and SEM-EDS. TiO2 was a typical rutile phase, and the carboxyl groups existed on N-TiO2@C. The photocatalyst consequently showed high removal efficiency of methylene blue (MB). The cycling experiment additionally indicated the high stability of N-TiO2@C. The present work provided a novel route for preparing N-TiO2@C. Moreover, it can be extended to prepare N-doped polyvalent metal oxides@carbon composites from all water-soluble polysaccharides such as cellulose derivatives, pectin, starch, and guar gum.
Collapse
Affiliation(s)
- Zi-Wei Xiong
- Xinjiang Key Laboratory of Agricultural Chemistry and Biomaterials, College of Chemistry and Chemical Engineering, Xinjiang Agricultural University, Urumchi, 830052 Xinjiang, People's Republic of China
| | - Yu-Jie Meng
- Xinjiang Key Laboratory of Agricultural Chemistry and Biomaterials, College of Chemistry and Chemical Engineering, Xinjiang Agricultural University, Urumchi, 830052 Xinjiang, People's Republic of China; Nonferrous Metal Research Institute of Xinjiang, Urumchi, 830052 Xinjiang, People's Republic of China
| | - Chao-Bing Luo
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, People's Republic of China
| | - Zun-Qi Liu
- Xinjiang Key Laboratory of Agricultural Chemistry and Biomaterials, College of Chemistry and Chemical Engineering, Xinjiang Agricultural University, Urumchi, 830052 Xinjiang, People's Republic of China
| | - De-Qiang Li
- Xinjiang Key Laboratory of Agricultural Chemistry and Biomaterials, College of Chemistry and Chemical Engineering, Xinjiang Agricultural University, Urumchi, 830052 Xinjiang, People's Republic of China.
| | - Jun Li
- Xinjiang Key Laboratory of Agricultural Chemistry and Biomaterials, College of Chemistry and Chemical Engineering, Xinjiang Agricultural University, Urumchi, 830052 Xinjiang, People's Republic of China
| |
Collapse
|
29
|
Najafinejad MS, Chianese S, Fenti A, Iovino P, Musmarra D. Application of Electrochemical Oxidation for Water and Wastewater Treatment: An Overview. Molecules 2023; 28:molecules28104208. [PMID: 37241948 DOI: 10.3390/molecules28104208] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 05/15/2023] [Accepted: 05/18/2023] [Indexed: 05/28/2023] Open
Abstract
In recent years, the discharge of various emerging pollutants, chemicals, and dyes in water and wastewater has represented one of the prominent human problems. Since water pollution is directly related to human health, highly resistant and emerging compounds in aquatic environments will pose many potential risks to the health of all living beings. Therefore, water pollution is a very acute problem that has constantly increased in recent years with the expansion of various industries. Consequently, choosing efficient and innovative wastewater treatment methods to remove contaminants is crucial. Among advanced oxidation processes, electrochemical oxidation (EO) is the most common and effective method for removing persistent pollutants from municipal and industrial wastewater. However, despite the great progress in using EO to treat real wastewater, there are still many gaps. This is due to the lack of comprehensive information on the operating parameters which affect the process and its operating costs. In this paper, among various scientific articles, the impact of operational parameters on the EO performances, a comparison between different electrochemical reactor configurations, and a report on general mechanisms of electrochemical oxidation of organic pollutants have been reported. Moreover, an evaluation of cost analysis and energy consumption requirements have also been discussed. Finally, the combination process between EO and photocatalysis (PC), called photoelectrocatalysis (PEC), has been discussed and reviewed briefly. This article shows that there is a direct relationship between important operating parameters with the amount of costs and the final removal efficiency of emerging pollutants. Optimal operating conditions can be achieved by paying special attention to reactor design, which can lead to higher efficiency and more efficient treatment. The rapid development of EO for removing emerging pollutants from impacted water and its combination with other green methods can result in more efficient approaches to face the pressing water pollution challenge. PEC proved to be a promising pollutants degradation technology, in which renewable energy sources can be adopted as a primer to perform an environmentally friendly water treatment.
Collapse
Affiliation(s)
| | - Simeone Chianese
- Department of Engineering, University of Campania "Luigi Vanvitelli", Via Roma 29, 81031 Aversa, Italy
| | - Angelo Fenti
- Department of Engineering, University of Campania "Luigi Vanvitelli", Via Roma 29, 81031 Aversa, Italy
| | - Pasquale Iovino
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania "Luigi Vanvitelli", Via Vivaldi 43, 81100 Caserta, Italy
| | - Dino Musmarra
- Department of Engineering, University of Campania "Luigi Vanvitelli", Via Roma 29, 81031 Aversa, Italy
| |
Collapse
|
30
|
Utami M, Wang S, Musawwa MM, Purbaningtias TE, Fitri M, Yuspita I, Abd-Elkader OH, Yadav KK, Munusamy-Ramanujam G, Bang D, Chang SW, Balasubramani R. Simultaneous photocatalytic removal of organic dye and heavy metal from textile wastewater over N-doped TiO 2 on reduced graphene oxide. CHEMOSPHERE 2023; 332:138882. [PMID: 37164194 DOI: 10.1016/j.chemosphere.2023.138882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 04/12/2023] [Accepted: 05/06/2023] [Indexed: 05/12/2023]
Abstract
Methylene blue (MB) and hexavalent chromium Cr(VI) are hazardous pollutants in textile waste and cannot be completely removed using conventional methods. So far, there have been no specific studies examining the synthesis and activity of N-TiO2/rGO as a photocatalyst for removing MB and Cr(VI) from textile wastewater. This work especially highlights the synthesis of N-TiO2/rGO as a photocatalyst which exhibits a wider range of light absorption and is highly effective for simultaneous removal of MB-Cr(VI) under visible light. Titanium tetrachloride (TiCl4) was used as the precursor for N-TiO2 synthesis using the sol-gel method. Graphite was oxidized using Hummer's method and reduced with hydrazine to produce rGO. N-TiO2/rGO was synthesized using a hydrothermal process and then analyzed using several characterization instruments. The X-ray diffraction pattern (XRD) showed that the anatase N-TiO2/rGO phase was detected at the diffraction peak of 2θ = 25.60°. Scanning electron microscopy and transmission electron microscopy (SEM-EDS and TEM) dispersive X-ray spectrometry images show that N-TiO2 particles adhere to the surface of rGO with uniform size and N and Ti elements are present in the N-TiO2/rGO combined investigated. Gas absorption analysis data (GSA) shows that N-TiO2/rGO had a surface area of 77.449 m2/g, a pore volume of 0.335 cc/g, and a pore size of 8.655 nm. The thermogravimetric differential thermal analysis (TG-DTA) curve showed the anatase phase at 500-780 °C with a weight loss of 0.85%. The N-TiO2/rGO composite showed a good photocatalyst application. The photocatalytic activity of N-TiO2/rGO for textile wastewater treatment under visible light showed higher effectiveness than ultraviolet light, with 97.92% for MB and 97.48% for Cr(VI). Combining N-TiO2 with rGO is proven to increase the light coverage in the visible light region. Removal of MB and Cr(VI) can be carried out simultaneously and results in a removal efficiency of 95.96%.
Collapse
Affiliation(s)
- Maisari Utami
- Departement of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Islam Indonesia, Yogyakarta, 55584, Indonesia.
| | - Shaobin Wang
- School of Chemical Engineering and Advanced Materials, University of Adelaide, Adelaide SA, 5005, Australia
| | - Muhammad Miqdam Musawwa
- Departement of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Islam Indonesia, Yogyakarta, 55584, Indonesia
| | - Tri Esti Purbaningtias
- Departement of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Islam Indonesia, Yogyakarta, 55584, Indonesia
| | - Melinda Fitri
- Departement of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Islam Indonesia, Yogyakarta, 55584, Indonesia
| | - Indah Yuspita
- Departement of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Islam Indonesia, Yogyakarta, 55584, Indonesia
| | - Omar H Abd-Elkader
- Department of Physics and Astronomy, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Krishna Kumar Yadav
- Faculty of Science and Technology, Madhyanchal Professional University, Ratibad, Bhopal, 462044, India
| | - Ganesh Munusamy-Ramanujam
- Molecular Biology and Immunobiology Division, Interdisciplinary Institute of Indian System of Medicine, SRM-IST, Kattankulathur, Tamil Nadu, 603203, India.
| | - Donggyu Bang
- Department of Environmental Energy & Engineering, Kyonggi University, Suwon-si, Gyeonggi-do, 16227, South Korea
| | - Soon Woong Chang
- Department of Environmental Energy & Engineering, Kyonggi University, Suwon-si, Gyeonggi-do, 16227, South Korea
| | - Ravindran Balasubramani
- Department of Environmental Energy & Engineering, Kyonggi University, Suwon-si, Gyeonggi-do, 16227, South Korea.
| |
Collapse
|
31
|
Li Z, Chen H, Dong C, Jin C, Cai M, Chen Y, Xie Z, Xiong X, Jin M. Nitrogen doped bimetallic sludge biochar composite for synergistic persulfate activation: Reactivity, stability and mechanisms. ENVIRONMENTAL RESEARCH 2023; 229:115998. [PMID: 37127103 DOI: 10.1016/j.envres.2023.115998] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 04/08/2023] [Accepted: 04/25/2023] [Indexed: 05/03/2023]
Abstract
As a recycling use of waste activated sludge (WAS), we used high-temperature pyrolysis of WAS to support bimetallic Fe-Mn with nitrogen (N) co-doping (FeMn@N-S), a customized composite catalyst that activates peroxysulphate (PS) for the breakdown of tetracycline (TC). First, the performance of TC degradation was evaluated and optimized under different N doping, pH, catalyst dosages, PS dosages, and contaminant concentrations. Activating PS with FeMn@N-S caused the degradation of 91% of the TC in 120 min. Next, characterization of FeMn@N-S by XRD, XPS and FT-IR analysis highlights N doping is beneficial to take shape more active sites and reduces the loss of Fe and Mn during the degradation reaction. As expected, the presence of Fe-Mn bimetallic on the catalyst surface increases the rate of electron transfer, promoting the redox cycle of the catalyst. Other functional groups on the catalyst surface, such as oxygen-containing groups, accelerated the electron transfer during PS activation. Free radical quenching and ESR analysis suggest that the main contributor to TC degradation is surface-bound SO4•-, along with the presence of single linear oxygen (1O2) oxidation pathway. Finally, the FeMn@N-S composite catalyst exhibits excellent pH suitability and reusability, indicating a solid practicality of this catalyst in PS-based removal of antibiotics from wastewater.
Collapse
Affiliation(s)
- Zheng Li
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310018, China
| | - Haifeng Chen
- Haining Municipal Water Investment Group Co, Haining, 314400, China
| | - Chunying Dong
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310018, China
| | - Chuzhan Jin
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Meiqiang Cai
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310018, China.
| | - Yan Chen
- Zhejiang Industrial Environmental Design and Research Institute Co., Ltd. Zhejiang Gongshang University, Hangzhou, 310018, China.
| | - Zhiqun Xie
- Center for Water Technology (WATEC) & Department of Biological and Chemical Engineering, Aarhus University, Universitetsbyen 36, Aarhus C, 8000, Denmark
| | - Xingaoyuan Xiong
- Center for Water Technology (WATEC) & Department of Biological and Chemical Engineering, Aarhus University, Universitetsbyen 36, Aarhus C, 8000, Denmark
| | - Micong Jin
- Key Laboratory of Health Risk Appraisal for Trace Toxic Chemicals of Zhejiang Province, Ningbo Municipal Center for Disease Control and Prevention, Ningbo, 315010, China; College of Life Sciences, Wuchang University of Technology, Wuhan, 430223, China.
| |
Collapse
|
32
|
Wu Q, Chen L, Kuo DH, Li P, Abdeta AB, Zelekew OA, Lin J, Chen X. Sulfur Substitution and Defect Engineering in an Unfavored MnMoO 4 Catalyst for Efficient Hydrogen Evolution under Visible Light. ACS APPLIED MATERIALS & INTERFACES 2023; 15:22142-22156. [PMID: 37127405 DOI: 10.1021/acsami.3c02205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
A novel and nonstoichiometric Mn1-xMo(S,O)4-y oxysulfide catalyst with oxygen vacancies and a partial Mo6+-to-Mo4+ transition after the substitution of sulfur was synthesized for an efficient photocatalytic hydrogen evolution reaction (PHER). With appropriate sulfur substitution, a MnMoO4 semiconductor with a wide band gap was converted to Mn1-xMo(S,O)4-y with a narrow gap and a suitable band position for PHER. MnMo oxysulfide of 50 mg achieved a high PHER rate of 415.8 μmol/h under visible light, an apparent quantum efficiency (AQE) of 4.31% at 420 nm, and a solar-to-hydrogen (STH) conversion efficiency of 1.28%. Oxygen vacancies (VO) surrounded by low coordination metal atoms act as active reaction sites, which strengthen water adsorption and activation. Here, we demonstrate that sulfur substitution of MnMoO4 for lowering its wide band gap can not only disturb the strict periodicity of the lattice but also the valence states of Mn and Mo for enhancing PHER via material design.
Collapse
Affiliation(s)
- Qinhan Wu
- College of Materials Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Longyan Chen
- College of Materials Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Dong-Hau Kuo
- Department of Materials Science and Engineering & Graduate Institute of Energy and Sustainability Technology, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
| | - Ping Li
- College of Materials Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Adugna Boke Abdeta
- College of Materials Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Osman Ahmed Zelekew
- Department of Materials Science and Engineering, Adama Science and Technology University, Adama 1888, Ethiopia
| | - Jinguo Lin
- College of Materials Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Xiaoyun Chen
- College of Materials Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| |
Collapse
|
33
|
Xu Y, Tang X, Xiao Y, Tang H, Lin H, Lv Y, Zhang H. Persulfate promoted visible photocatalytic elimination of bisphenol A by g-C 3N 4-CeO 2 S-scheme heterojunction: The dominant role of photo-induced holes. CHEMOSPHERE 2023; 331:138765. [PMID: 37094721 DOI: 10.1016/j.chemosphere.2023.138765] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 03/29/2023] [Accepted: 04/21/2023] [Indexed: 05/03/2023]
Abstract
In the last few years, coupling heterogeneous photocatalysis with persulfate (PDS) activation process is an efficient approach to generate abundant reactive oxidative species towards organic contaminant removal in water, however, the key role of PDS in photocatalytic process remains ambiguous. Herein, a novel g-C3N4-CeO2 (CN-CeO2) step-scheme (S-scheme) composite was constructed to photo-degrade bisphenol A (BPA) with the presence of PDS under visible irradiation. At 2.0 mM PDS, 0.7 g/L CN-CeO2 and natural pH 6.2, 94.2% of BPA could be eliminated in 60 min under visible light (Vis) illumination. Aside from the previous view of free radical generation, it tends to assume that most of PDS molecules acted as electron sacrificial agents for capturing photo-induced e- to form sulfate ions, greatly improving the charge carrier separation and thus enhancing the oxidation capacity of nonradical hole (h+) for the removal of BPA. Good correlations are further found between the rate constant and descriptor variables (i.e., Hammett constant σ-/σ+ and half-wave potential E1/2), exhibiting selective oxidation for organic pollutants in the Vis/CN-CeO2/PDS system. The study brings more insights into mechanistic understanding of persulfate-enhanced photocatalytic process for addressing water decontamination.
Collapse
Affiliation(s)
- Yin Xu
- Department of Environmental Science and Engineering, Wuhan University, Wuhan, 430079, China; Hubei Key Laboratory of Regional Development and Environmental Response, Faculty of Resources and Environmental Science, Hubei University, Wuhan, 430062, China
| | - Xin Tang
- Department of Environmental Science and Engineering, Wuhan University, Wuhan, 430079, China
| | - Yan Xiao
- Department of Environmental Science and Engineering, Wuhan University, Wuhan, 430079, China
| | - Huiling Tang
- Department of Environmental Science and Engineering, Wuhan University, Wuhan, 430079, China
| | - Heng Lin
- Department of Environmental Science and Engineering, Wuhan University, Wuhan, 430079, China
| | - Yujuan Lv
- Shangdong Electric Power Engineering Consulting Institute Corp., LTD, Jinan, 250013, China
| | - Hui Zhang
- Department of Environmental Science and Engineering, Wuhan University, Wuhan, 430079, China.
| |
Collapse
|
34
|
Wang H, Dong M, Shao B, Chi Y, Wang C, Lv S, Duan R, Wu B, Yang X. Efficient Photodegradation of Rhodamine B by Fiber-like Nitrogen-Doped TiO 2/Ni(OH) 2 Nanocomposite under Visible Light Irradiation. MICROMACHINES 2023; 14:870. [PMID: 37421103 DOI: 10.3390/mi14040870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 04/12/2023] [Accepted: 04/14/2023] [Indexed: 07/09/2023]
Abstract
N-TiO2/Ni(OH)2 nanofiber was successfully prepared by combining the electrospinning and solvothermal method. It has been found that under visible light irradiation, the as-obtained nanofiber exhibits excellent activity for the photodegradation of rhodamine B, and the average degradation rate reaches 3.1%/min-1. Further insight investigations reveal that such a high activity was mainly due to the heterostructure-induced increase in the charge transfer rate and separation efficiency.
Collapse
Affiliation(s)
- Huan Wang
- Key Laboratory for Comprehensive Energy Saving of Cold Regions Architecture of Ministry of Education, Jilin Jianzhu University, Changchun 130118, China
- Department of Materials Science, Jilin Jianzhu University, Changchun 130118, China
| | - Mingxuan Dong
- Department of Materials Science, Jilin Jianzhu University, Changchun 130118, China
| | - Baorui Shao
- Department of Materials Science, Jilin Jianzhu University, Changchun 130118, China
| | - Yaodan Chi
- Key Laboratory for Comprehensive Energy Saving of Cold Regions Architecture of Ministry of Education, Jilin Jianzhu University, Changchun 130118, China
| | - Chao Wang
- Key Laboratory for Comprehensive Energy Saving of Cold Regions Architecture of Ministry of Education, Jilin Jianzhu University, Changchun 130118, China
| | - Sa Lv
- Key Laboratory for Comprehensive Energy Saving of Cold Regions Architecture of Ministry of Education, Jilin Jianzhu University, Changchun 130118, China
| | - Ran Duan
- Key Laboratory for Comprehensive Energy Saving of Cold Regions Architecture of Ministry of Education, Jilin Jianzhu University, Changchun 130118, China
| | - Boqi Wu
- Key Laboratory for Comprehensive Energy Saving of Cold Regions Architecture of Ministry of Education, Jilin Jianzhu University, Changchun 130118, China
| | - Xiaotian Yang
- Key Laboratory for Comprehensive Energy Saving of Cold Regions Architecture of Ministry of Education, Jilin Jianzhu University, Changchun 130118, China
- Department of Chemistry, Jilin Normal University, Siping 136000, China
| |
Collapse
|
35
|
Gao F, Wang X, Cui WG, Liu Y, Yang Y, Sun W, Chen J, Liu P, Pan H. Topologically Porous Heterostructures for Photo/Photothermal Catalysis of Clean Energy Conversion. SMALL METHODS 2023; 7:e2201532. [PMID: 36813753 DOI: 10.1002/smtd.202201532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 01/26/2023] [Indexed: 06/18/2023]
Abstract
As a straightforward way to fix solar energy, photo/photothermal catalysis with semiconductor provides a promising way to settle the energy shortage and environmental crisis in many fields, especially in clean energy conversion. Topologically porous heterostructures (TPHs), featured with well-defined pores and mainly composed by the derivatives of some precursors with specific morphology, are a major part of hierarchical materials in photo/photothermal catalysis and provide a versatile platform to construct efficient photocatalysts for their enhanced light absorption, accelerated charges transfer, improved stability, and promoted mass transportation. Therefore, a comprehensive and timely review on the advantages and recent applications of the TPHs is of great importance to forecast the potential applications and research trend in the future. This review initially demonstrates the advantages of TPHs in photo/photothermal catalysis. Then the universal classifications and design strategies of TPHs are emphasized. Besides, the applications and mechanisms of photo/photothermal catalysis in hydrogen evolution from water splitting and COx hydrogenation over TPHs are carefully reviewed and highlighted. Finally, the challenges and perspectives of TPHs in photo/photothermal catalysis are also critically discussed.
Collapse
Affiliation(s)
- Fan Gao
- Institute of Science and Technology for New Energy, Xi'an Technological University, Xi'an, 710021, P. R. China
- State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou, 350116, P. R. China
| | - Xinqiang Wang
- Institute of Science and Technology for New Energy, Xi'an Technological University, Xi'an, 710021, P. R. China
| | - Wen-Gang Cui
- Institute of Science and Technology for New Energy, Xi'an Technological University, Xi'an, 710021, P. R. China
| | - Yanxia Liu
- Institute of Science and Technology for New Energy, Xi'an Technological University, Xi'an, 710021, P. R. China
| | - Yaxiong Yang
- Institute of Science and Technology for New Energy, Xi'an Technological University, Xi'an, 710021, P. R. China
| | - Wenping Sun
- State Key Laboratory of Silicon Materials and School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Jian Chen
- Institute of Science and Technology for New Energy, Xi'an Technological University, Xi'an, 710021, P. R. China
| | - Ping Liu
- State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou, 350116, P. R. China
| | - Hongge Pan
- Institute of Science and Technology for New Energy, Xi'an Technological University, Xi'an, 710021, P. R. China
- State Key Laboratory of Silicon Materials and School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| |
Collapse
|
36
|
Matsuyama T, Saeki S, Kosaka S, Matsuoka Y, Aoki Y, Itoh Y, Imaeda T. Inactivation of SARS-CoV-2 variants by nitrogen-doped titanium dioxide loaded with metals as visible-light photocatalysts. Biotechnol Lett 2023; 45:551-561. [PMID: 36913102 PMCID: PMC10009347 DOI: 10.1007/s10529-023-03361-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 11/18/2022] [Accepted: 02/10/2023] [Indexed: 03/14/2023]
Abstract
PURPOSE We examined the inactivation of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) by a nitrogen-doped titanium dioxide (N-TiO2) visible-light photocatalyst that was activated via light irradiation in the natural environment and was safe for human use as a coating material. METHODS The photocatalytic activity of glass slides coated with three types of N-TiO2 without metal or loaded with copper or silver and copper was investigated by measuring acetaldehyde degradation. The titer levels of infectious SARS-CoV-2 were measured using cell culture after exposing photocatalytically active coated glass slides to visible light for up to 60 min. RESULTS N-TiO2 photoirradiation inactivated the SARS-CoV-2 Wuhan strain and this effect was enhanced by copper loading and further by the addition of silver. Hence, visible-light irradiation using silver and copper-loaded N-TiO2 inactivated the Delta, Omicron, and Wuhan strains. CONCLUSION N-TiO2 could be used to inactivate SARS-CoV-2 variants, including emerging variants, in the environment.
Collapse
Affiliation(s)
- Takashi Matsuyama
- Toyota Central Research and Development Laboratories Incorporated, Nagakute, 480-1192 Japan
| | - Shu Saeki
- Toyota Central Research and Development Laboratories Incorporated, Nagakute, 480-1192 Japan
| | - Satoru Kosaka
- Toyota Central Research and Development Laboratories Incorporated, Nagakute, 480-1192 Japan
| | - Yoriko Matsuoka
- Toyota Central Research and Development Laboratories Incorporated, Nagakute, 480-1192 Japan
| | - Yoshifumi Aoki
- Toyota Central Research and Development Laboratories Incorporated, Nagakute, 480-1192 Japan
| | - Yasushi Itoh
- Shiga University of Medical Science, Otsu, 520-2192 Japan
| | - Takao Imaeda
- Toyota Central Research and Development Laboratories Incorporated, Nagakute, 480-1192 Japan
| |
Collapse
|
37
|
Lyulyukin M, Kovalevskiy N, Bukhtiyarov A, Kozlov D, Selishchev D. Kinetic Aspects of Benzene Degradation over TiO2-N and Composite Fe/Bi2WO6/TiO2-N Photocatalysts under Irradiation with Visible Light. Int J Mol Sci 2023; 24:ijms24065693. [PMID: 36982767 PMCID: PMC10051460 DOI: 10.3390/ijms24065693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 03/07/2023] [Accepted: 03/14/2023] [Indexed: 03/19/2023] Open
Abstract
In this study, composite materials based on nanocrystalline anatase TiO2 doped with nitrogen and bismuth tungstate are synthesized using a hydrothermal method. All samples are tested in the oxidation of volatile organic compounds under visible light to find the correlations between their physicochemical characteristics and photocatalytic activity. The kinetic aspects are studied both in batch and continuous-flow reactors, using ethanol and benzene as test compounds. The Bi2WO6/TiO2-N heterostructure enhanced with Fe species efficiently utilizes visible light in the blue region and exhibits much higher activity in the degradation of ethanol vapor than pristine TiO2-N. However, an increased activity of Fe/Bi2WO6/TiO2-N can have an adverse effect in the degradation of benzene vapor. A temporary deactivation of the photocatalyst can occur at a high concentration of benzene due to the fast accumulation of non-volatile intermediates on its surface. The formed intermediates suppress the adsorption of the initial benzene and substantially increase the time required for its complete removal from the gas phase. An increase in temperature up to 140 °C makes it possible to increase the rate of the overall oxidation process, and the use of the Fe/Bi2WO6/TiO2-N composite improves the selectivity of oxidation compared to pristine TiO2-N.
Collapse
Affiliation(s)
- Mikhail Lyulyukin
- Boreskov Institute of Catalysis, Novosibirsk 630090, Russia; (M.L.); (N.K.); (A.B.); (D.K.)
- Ecology and Nature Management Department, Aircraft Engineering Faculty, Novosibirsk State Technical University, Novosibirsk 630073, Russia
| | - Nikita Kovalevskiy
- Boreskov Institute of Catalysis, Novosibirsk 630090, Russia; (M.L.); (N.K.); (A.B.); (D.K.)
| | - Andrey Bukhtiyarov
- Boreskov Institute of Catalysis, Novosibirsk 630090, Russia; (M.L.); (N.K.); (A.B.); (D.K.)
| | - Denis Kozlov
- Boreskov Institute of Catalysis, Novosibirsk 630090, Russia; (M.L.); (N.K.); (A.B.); (D.K.)
| | - Dmitry Selishchev
- Boreskov Institute of Catalysis, Novosibirsk 630090, Russia; (M.L.); (N.K.); (A.B.); (D.K.)
- Correspondence: ; Tel.: +7-383-326-9429
| |
Collapse
|
38
|
Liao MW, Jeng HT, Perng TP. Formation Mechanism and Bandgap Reduction of GaN-ZnO Solid-Solution Thin Films Fabricated by Nanolamination of Atomic Layer Deposition. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2207849. [PMID: 36495592 DOI: 10.1002/adma.202207849] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 11/14/2022] [Indexed: 06/17/2023]
Abstract
Nanolamination of GaN and ZnO layers by atomic layer deposition (ALD) is employed to fabricate GaN-ZnO homogenous solid-solution thin films because it offers more precise control of the stoichiometry. By varying the ALD cycle ratios of GaN:ZnO from 5:10 to 10:5, the (GaN)1- x (ZnO)x films with 0.39 ≦ x ≦ 0.79 are obtained. The formation of solid solution is explained based on the atomic stacking and preferred orientation of the layers of GaN and ZnO. However, the growth rates of GaN and ZnO during the lamination process are different from those of pure GaN and ZnO films. It is found that GaN grows faster on ZnO, whereas ZnO grows slower on GaN. The density functional theory (DFT) calculations are performed using a superlattice model for GaN and ZnO laminated layers fabricated by ALD to understand the difference of density of states (DOS) and evaluate the bandgaps for various atomic configurations in the solid-solution films. The band positions are experimentally defined by ultraviolet photoelectron spectroscopy. Significant bandgap reduction of the solid solutions is observed, which can be explained by the DOS from the DFT calculations. Visible-light-driven photocatalytic hydrogen evolution is conducted to confirm the applicability of the solid-solution films.
Collapse
Affiliation(s)
- Ming-Wei Liao
- Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, 30013, Taiwan
| | - Horng-Tay Jeng
- Department of Physics, National Tsing Hua University, Hsinchu, 30013, Taiwan
- Physics Division, National Center for Theoretical Sciences, Taipei, 10617, Taiwan
- Institute of Physics, Academia Sinica, Taipei, 11529, Taiwan
| | - Tsong-Pyng Perng
- Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, 30013, Taiwan
| |
Collapse
|
39
|
Chen Y, Liu F, Zhao Y, Ding M, Wang J, Zheng X, Wang H, Record MC, Boulet P. Lychee-like TiO 2@Fe 2O 3 Core-Shell Nanostructures with Improved Lithium Storage Properties as Anode Materials for Lithium-Ion Batteries. MATERIALS (BASEL, SWITZERLAND) 2023; 16:1945. [PMID: 36903060 PMCID: PMC10004431 DOI: 10.3390/ma16051945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 02/21/2023] [Accepted: 02/24/2023] [Indexed: 06/18/2023]
Abstract
In this study, lychee-like TiO2@Fe2O3 microspheres with a core-shell structure have been prepared by coating Fe2O3 on the surface of TiO2 mesoporous microspheres using the homogeneous precipitation method. The structural and micromorphological characterization of TiO2@Fe2O3 microspheres has been carried out using XRD, FE-SEM, and Raman, and the results show that hematite Fe2O3 particles (7.05% of the total mass) are uniformly coated on the surface of anatase TiO2 microspheres, and the specific surface area of this material is 14.72 m2 g-1. The electrochemical performance test results show that after 200 cycles at 0.2 C current density, the specific capacity of TiO2@Fe2O3 anode material increases by 219.3% compared with anatase TiO2, reaching 591.5 mAh g-1; after 500 cycles at 2 C current density, the discharge specific capacity of TiO2@Fe2O3 reaches 273.1 mAh g-1, and its discharge specific capacity, cycle stability, and multiplicity performance are superior to those of commercial graphite. In comparison with anatase TiO2 and hematite Fe2O3, TiO2@Fe2O3 has higher conductivity and lithium-ion diffusion rate, thereby enhancing its rate performance. The electron density of states (DOS) of TiO2@Fe2O3 shows its metallic nature by DFT calculations, revealing the essential reason for the high electronic conductivity of TiO2@Fe2O3. This study presents a novel strategy for identifying suitable anode materials for commercial lithium-ion batteries.
Collapse
Affiliation(s)
- Yuan Chen
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Collaborative Innovation Center of Green Light-Weight Materials and Processing, and School of Materials and Chemical Engineering, Hubei University of Technology, Wuhan 430068, China
- New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base, Wuhan 430068, China
- Hubei Longzhong Laboratory, Xiangyang 441000, China
| | - Feihong Liu
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Collaborative Innovation Center of Green Light-Weight Materials and Processing, and School of Materials and Chemical Engineering, Hubei University of Technology, Wuhan 430068, China
| | - Yufei Zhao
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Collaborative Innovation Center of Green Light-Weight Materials and Processing, and School of Materials and Chemical Engineering, Hubei University of Technology, Wuhan 430068, China
| | - Mengdie Ding
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Collaborative Innovation Center of Green Light-Weight Materials and Processing, and School of Materials and Chemical Engineering, Hubei University of Technology, Wuhan 430068, China
| | - Juan Wang
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Collaborative Innovation Center of Green Light-Weight Materials and Processing, and School of Materials and Chemical Engineering, Hubei University of Technology, Wuhan 430068, China
- New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base, Wuhan 430068, China
- Hubei Longzhong Laboratory, Xiangyang 441000, China
| | - Xuan Zheng
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Collaborative Innovation Center of Green Light-Weight Materials and Processing, and School of Materials and Chemical Engineering, Hubei University of Technology, Wuhan 430068, China
- New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base, Wuhan 430068, China
- Hubei Longzhong Laboratory, Xiangyang 441000, China
| | - Huihu Wang
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Collaborative Innovation Center of Green Light-Weight Materials and Processing, and School of Materials and Chemical Engineering, Hubei University of Technology, Wuhan 430068, China
- New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base, Wuhan 430068, China
- Hubei Longzhong Laboratory, Xiangyang 441000, China
| | - Marie-Christine Record
- New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base, Wuhan 430068, China
- Aix-Marseille University, Faculty of Sciences, IM2NP, CEDEX 20, 13397 Marseille, France
| | - Pascal Boulet
- New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base, Wuhan 430068, China
- Aix-Marseille University, Faculty of Sciences, Madirel, CEDEX 20, 13397 Marseille, France
| |
Collapse
|
40
|
Ivan R, Popescu C, Antohe VA, Antohe S, Negrila C, Logofatu C, del Pino AP, György E. Iron oxide/hydroxide-nitrogen doped graphene-like visible-light active photocatalytic layers for antibiotics removal from wastewater. Sci Rep 2023; 13:2740. [PMID: 36792714 PMCID: PMC9932170 DOI: 10.1038/s41598-023-29927-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 02/13/2023] [Indexed: 02/17/2023] Open
Abstract
Hybrid layers consisting of Fe oxide, Fe hydroxide, and nitrogen doped graphene-like platelets have been synthesized by an eco-friendly laser-based method for photocatalytic applications. The complex composite layers show high photodecomposition efficiency towards degradation of antibiotic molecules under visible light irradiation. The photodecomposition efficiency was investigated as a function of relative concentrations of base materials, Fe oxide nanoparticles and graphene oxide platelets used for the preparation of target dispersions submitted to laser irradiation. Although reference pure Fe oxide/Fe hydroxide layers have high absorption in the visible spectral region, their photodecomposition efficiency is negligible under the same irradiation conditions. The high photocatalytic decomposition efficiency of the nanohybrid layer, up to 80% of the initial antibiotic molecules was assigned to synergistic effects between the constituent materials, efficient separation of the electron-hole pairs generated by visible light irradiation on the surface of Fe oxide and Fe hydroxide nanoparticles, in the presence of conducting graphene-like platelets. Nitrogen doped graphene-like platelets contribute also to the generation of electron-hole pairs under visible light irradiation, as demonstrated by the photocatalytic activity of pure, reference nitrogen doped graphene-like layers. The results also showed that adsorption processes do not contribute significantly to the removal of antibiotic molecules from the test solutions. The decrease of the antibiotic concentration under visible light irradiation was assigned primarily to photocatalytic decomposition mechanisms.
Collapse
Affiliation(s)
- R. Ivan
- grid.435167.20000 0004 0475 5806National Institute for Lasers, Plasma and Radiation Physics, PO Box MG 36, 077125 Măgurele, Ilfov Romania ,grid.5100.40000 0001 2322 497XFaculty of Physics, University of Bucharest, Atomiștilor 405, 077125 Măgurele, Ilfov Romania
| | - C. Popescu
- grid.435167.20000 0004 0475 5806National Institute for Lasers, Plasma and Radiation Physics, PO Box MG 36, 077125 Măgurele, Ilfov Romania
| | - V. A. Antohe
- grid.5100.40000 0001 2322 497XFaculty of Physics, University of Bucharest, Atomiștilor 405, 077125 Măgurele, Ilfov Romania ,grid.7942.80000 0001 2294 713XInstitute of Condensed Matter and Nanosciences (IMCN), Université Catholique de Louvain (UCLouvain), Place Croix du Sud 1, 1348 Louvain-La-Neuve, Belgium
| | - S. Antohe
- grid.5100.40000 0001 2322 497XFaculty of Physics, University of Bucharest, Atomiștilor 405, 077125 Măgurele, Ilfov Romania ,grid.435118.a0000 0004 6041 6841Academy of Romanian Scientists (AOSR), Splaiul Independenței 54, 050094 Bucharest, Romania
| | - C. Negrila
- grid.443870.c0000 0004 0542 4064National Institute for Materials Physics, PO Box MG 7, 077125 Măgurele, Ilfov, Romania
| | - C. Logofatu
- grid.443870.c0000 0004 0542 4064National Institute for Materials Physics, PO Box MG 7, 077125 Măgurele, Ilfov, Romania
| | - A. Pérez del Pino
- grid.435283.b0000 0004 1794 1122Instituto de Ciencia de Materiales de Barcelona, Consejo Superior de Investigaciones Científicas (ICMAB-CSIC), Campus UAB, 08193 Bellaterra, Barcelona Spain
| | - E. György
- grid.435167.20000 0004 0475 5806National Institute for Lasers, Plasma and Radiation Physics, PO Box MG 36, 077125 Măgurele, Ilfov Romania ,grid.435283.b0000 0004 1794 1122Instituto de Ciencia de Materiales de Barcelona, Consejo Superior de Investigaciones Científicas (ICMAB-CSIC), Campus UAB, 08193 Bellaterra, Barcelona Spain
| |
Collapse
|
41
|
Seid MG, Son A, Cho K, Byun J, Hong SW. Doped and immobilized titanium dioxide photocatalysts as a potential source of nitrosamine formation. WATER RESEARCH 2023; 230:119573. [PMID: 36621279 DOI: 10.1016/j.watres.2023.119573] [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: 08/23/2022] [Revised: 11/27/2022] [Accepted: 01/03/2023] [Indexed: 06/17/2023]
Abstract
Immobilized and visible-light-active titanium dioxide (TiO2) is widely used for water treatment. However, the accelerated generation of degradation byproducts is a potential risk of TiO2-based photocatalysis. This study aimed to investigate the structural effect of engineered TiO2 samples on the formation of major nitrosamines during photocatalysis. The nitrogen-containing impurities and leached metal ions from doped-TiO2 samples could exacerbate nitrosamine formation potential (FP) in distilled water, secondary effluent, and chloraminated water. Doped-TiO2 with 2-ethylimidazole, trimethylamine, triethylamine, and N-carbon nanotubes could leach in the range of 47-64 ng L-1 nitrosamines (including N-nitrosomethylethylamine, N-nitrosodiethylamine, N-nitrosodimethylamine, and N-nitrosopyrrolidine) even under dark conditions. Furthermore, we investigated the role of metal dopants on nitrosamine-FP during the chloramination of precursors such as dimethylamine and microcystin-LR. Metal ions such as Cu that leached from the metal-doped catalysts may catalyze the nitrosamine-FP. Therefore, pre-purification (washing) and immobilization of doped-TiO2 samples on substrates are suggested to remove a considerable amount of nitrosamines. However, during the prolonged tryout, the selection of substrates was critical. Polymeric supports, such as polyimide and polyvinylpyrrolidone, can produce up to 85 ng L-1 nitrosamine, whereas TiO2 immobilized onto steel mesh can remove nitrosamine formation during photocatalytic oxidation followed by chloramination. This study systematically screened a diverse range of dopants, supports, and solvents in engineered TiO2 photocatalysts, in 61 samples, and provided novel insights into their effect on nitrosamine formation.
Collapse
Affiliation(s)
- Mingizem Gashaw Seid
- Center for Water Cycle Research, Korea Institute of Science and Technology, Hwarangro 14 gil 5, Seongbuk-gu, Seoul 136-791, Republic of Korea
| | - Aseom Son
- Center for Water Cycle Research, Korea Institute of Science and Technology, Hwarangro 14 gil 5, Seongbuk-gu, Seoul 136-791, Republic of Korea; Civil, Environmental, and Architectural Engineering, Korea University, Seoul 136-701, Republic of Korea
| | - Kangwoo Cho
- Division of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang 790-784, Republic of Korea; Institute for Convergence Research and Education in Advanced Technology (I-CREATE), Yonsei University, Incheon 406-840, Republic of Korea
| | - Jeehye Byun
- Center for Water Cycle Research, Korea Institute of Science and Technology, Hwarangro 14 gil 5, Seongbuk-gu, Seoul 136-791, Republic of Korea; Division of Energy and Environment Technology, KIST-School, University of Science and Technology, Seoul 02792, Republic of Korea.
| | - Seok Won Hong
- Center for Water Cycle Research, Korea Institute of Science and Technology, Hwarangro 14 gil 5, Seongbuk-gu, Seoul 136-791, Republic of Korea; Division of Energy and Environment Technology, KIST-School, University of Science and Technology, Seoul 02792, Republic of Korea.
| |
Collapse
|
42
|
Yu W, Xu M, Liang X, Wang J, Fang W, Wang F. Construction of a novel Cu 1.8S/NH 2-La MOFs decorated Black-TNTs photoanode electrode for high-efficiently photoelectrocatalytic degradation of 2, 4-dichlorophenol. CHEMOSPHERE 2023; 313:137591. [PMID: 36563722 DOI: 10.1016/j.chemosphere.2022.137591] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 12/15/2022] [Accepted: 12/16/2022] [Indexed: 06/17/2023]
Abstract
Photoelectrocatalysis (PEC) has long been regarded as an efficient and green method to eliminate various organic pollutants from wastewater. However, the lack of highly photoelectrocatalytic active and stable electrodes limits the development of the PEC technologies. Herein, a novel hierarchical photo-electrode with hollow Cu1.8S/NH2-La MOFs decorated black titanium dioxide nanotubes (Cu1.8S/NH2-La MOFs/Black TNTs) was fabricated by a two-step water-heating method. The prepared photoelectrode was used to degradation of 2, 4-dichlorophenol (2, 4-DCP). Analysis of photoelectrocatalytic degradation process of 2, 4-DCP was evaluated using UV-Vis absorption spectroscopy and the main degradation paths were analyzed by LC-MS. The results showed that 99.3% of the pollutant could be rapidly degraded within 180 min. Furthermore, the Cu1.8S/NH2-La MOFs/Black TNTs photoelectric pole exhibited excellent stability after 15 cycling experiments.
Collapse
Affiliation(s)
- Wenkai Yu
- School of Chemistry and Material Engineering, Huainan Normal University, Huainan, 232038, People's Republic of China; School of Chemical Engineering, Anhui University of Science and Technology, Huainan, Anhui 232001, People's Republic of China
| | - Mai Xu
- School of Chemistry and Material Engineering, Huainan Normal University, Huainan, 232038, People's Republic of China.
| | - Xian Liang
- School of Chemistry and Material Engineering, Huainan Normal University, Huainan, 232038, People's Republic of China
| | - Jiayi Wang
- School of Chemistry and Material Engineering, Huainan Normal University, Huainan, 232038, People's Republic of China; School of Chemical Engineering, Anhui University of Science and Technology, Huainan, Anhui 232001, People's Republic of China
| | - Wenyan Fang
- School of Chemistry and Material Engineering, Huainan Normal University, Huainan, 232038, People's Republic of China
| | - Fengwu Wang
- School of Chemistry and Material Engineering, Huainan Normal University, Huainan, 232038, People's Republic of China.
| |
Collapse
|
43
|
Chen S, Hu YH. Color TiO 2 Materials as Emerging Catalysts for Visible-NIR Light Photocatalysis, A Review. CATALYSIS REVIEWS 2023. [DOI: 10.1080/01614940.2023.2169451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Shaoqin Chen
- Department of Materials Science and Engineering, Michigan Technological University, Houghton, Michigan, USA
| | - Yun Hang Hu
- Department of Materials Science and Engineering, Michigan Technological University, Houghton, Michigan, USA
| |
Collapse
|
44
|
Liao L, Wang M, Li Z, Wang X, Zhou W. Recent Advances in Black TiO 2 Nanomaterials for Solar Energy Conversion. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:468. [PMID: 36770430 PMCID: PMC9921477 DOI: 10.3390/nano13030468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/16/2023] [Accepted: 01/21/2023] [Indexed: 06/18/2023]
Abstract
Titanium dioxide (TiO2) nanomaterials have been widely used in photocatalytic energy conversion and environmental remediation due to their advantages of low cost, chemical stability, and relatively high photo-activity. However, applications of TiO2 have been restricted in the ultraviolet range because of the wide band gap. Broadening the light absorption of TiO2 nanomaterials is an efficient way to improve the photocatalytic activity. Thus, black TiO2 with extended light response range in the visible light and even near infrared light has been extensively exploited as efficient photocatalysts in the last decade. This review represents an attempt to conclude the recent developments in black TiO2 nanomaterials synthesized by modified treatment, which presented different structure, morphological features, reduced band gap, and enhanced solar energy harvesting efficiency. Special emphasis has been given to the newly developed synthetic methods, porous black TiO2, and the approaches for further improving the photocatalytic activity of black TiO2. Various black TiO2, doped black TiO2, metal-loaded black TiO2 and black TiO2 heterojunction photocatalysts, and their photocatalytic applications and mechanisms in the field of energy and environment are summarized in this review, to provide useful insights and new ideas in the related field.
Collapse
|
45
|
Al-akhali AHAF, Tang Z. Fabrication of bio-inspired metal-based superhydrophilic and underwater superoleophobic porous materials by hydrothermal treatment and magnetron sputtering. RSC Adv 2023; 13:1049-1058. [PMID: 36686915 PMCID: PMC9811985 DOI: 10.1039/d2ra07113d] [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: 11/09/2022] [Accepted: 12/06/2022] [Indexed: 01/05/2023] Open
Abstract
Oil-water separation using porous superhydrophilic materials is a promising method to circumvent the issue of oil-polluted water by separating water from oil-water mixtures. However, fabricating metal-based porous superhydrophilic materials with stable superhydrophilicity that can recover their strong hydrophilicity and have acceptable oil-water separation efficiency without complex external stimuli is still a challenge. Inspired by the anti-wetting behavior of broccoli buds, this study successfully fabricated metal-based superhydrophilic and underwater superoleophobic porous materials by hydrothermal treatment of stainless steel meshes (SSMs) combined with magnetron sputtering of metallic Ti and W. The process was then followed with annealing at 300 °C for 4 hours. The effects of coating materials, annealing temperature, and surface structure on the wetting behavior of the prepared meshes were studied and analyzed. The modified meshes exhibited unique broccoli-like microstructures coated with thin TiO2-x N x /WO3 films and showed superhydrophilicity with a 0° water contact angle (WCA) and underwater superoleophobicity with underwater oil contact angles (UOCAs) higher than 155°. They also maintained strong hydrophilicity for more than three weeks with WCAs of less than 13°. Besides, they could recover their initial superhydrophilicity with a 0° WCA after post-annealing at 80 °C for 30 minutes. Notably, the broccoli-like structures and the strong hydrophilic coatings contributed to a significant water flow rate (Q) of 3650 L m-2 h-1 and satisfactory oil-water separation efficiency of 98% for more than 15 separation cycles toward various oil-water mixtures. We believe that the presented method and fabricated material are promising and can be applied to induce hydrophilicity of various metallic materials for practical applications of oil-water separation, anti-fouling, microfluidic transport, and water harvesting.
Collapse
Affiliation(s)
| | - Zhengqiang Tang
- School of Mechanical Engineering, Guizhou UniversityGuiyang 550025PR China
| |
Collapse
|
46
|
Boosting photocatalytic hydrogen evolution of β-keto-enamine-based covalent organic frameworks by introducing electron-donating functional substituents. MOLECULAR CATALYSIS 2023. [DOI: 10.1016/j.mcat.2022.112807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
|
47
|
Xue Y, Kamali M, Zhang X, Askari N, De Preter C, Appels L, Dewil R. Immobilization of photocatalytic materials for (waste)water treatment using 3D printing technology - advances and challenges. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 316:120549. [PMID: 36336185 DOI: 10.1016/j.envpol.2022.120549] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 10/26/2022] [Accepted: 10/28/2022] [Indexed: 06/16/2023]
Abstract
Photocatalysis has been considered a promising technology for the elimination of a wide range of pollutants in water. Various types of photocatalysts (i.e., homojunction, heterojunction, dual Z-scheme photocatalyst) have been developed in recent years to address the drawbacks of conventional photocatalysts, such as the large energy band gap and rapid recombination rate of photogenerated electrons and holes. However, there are still challenges in the design of photocatalytic reactors that limit their wider application for real (waste)water treatment, such as difficulties in their recovery and reuse from treated (waste)waters. 3D printing technologies have been introduced very recently for the immobilization of materials in novel photocatalytic reactor designs. The present review aims to summarize and discuss the advances and challenges in the application of various 3D printing technologies (i.e., stereolithography, inkjet printing, and direct ink writing) for the fabrication of stable photocatalytic materials for (waste)water treatment purposes. Furthermore, the limitations in the implementation of these technologies to design future generations of photocatalytic reactors have been critically discussed, and recommendations for future studies have been presented.
Collapse
Affiliation(s)
- Yongtao Xue
- KU Leuven, Department of Chemical Engineering, Process and Environmental Technology Lab, J. De Nayerlaan 5, 2860 Sint-Katelijne-Waver, Belgium
| | - Mohammadreza Kamali
- KU Leuven, Department of Chemical Engineering, Process and Environmental Technology Lab, J. De Nayerlaan 5, 2860 Sint-Katelijne-Waver, Belgium
| | - Xi Zhang
- KU Leuven, Department of Chemical Engineering, Process and Environmental Technology Lab, J. De Nayerlaan 5, 2860 Sint-Katelijne-Waver, Belgium
| | - Najmeh Askari
- KU Leuven, Department of Chemical Engineering, Process and Environmental Technology Lab, J. De Nayerlaan 5, 2860 Sint-Katelijne-Waver, Belgium
| | - Clem De Preter
- KU Leuven, Department of Chemical Engineering, Process and Environmental Technology Lab, J. De Nayerlaan 5, 2860 Sint-Katelijne-Waver, Belgium
| | - Lise Appels
- KU Leuven, Department of Chemical Engineering, Process and Environmental Technology Lab, J. De Nayerlaan 5, 2860 Sint-Katelijne-Waver, Belgium
| | - Raf Dewil
- KU Leuven, Department of Chemical Engineering, Process and Environmental Technology Lab, J. De Nayerlaan 5, 2860 Sint-Katelijne-Waver, Belgium; University of Oxford, Department of Engineering Science, Parks Road, Oxford OX1 3PJ, United Kingdom.
| |
Collapse
|
48
|
Recent Advances in Ternary Metal Oxides Modified by N Atom for Photocatalysis. Catalysts 2022. [DOI: 10.3390/catal12121568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Ternary metal oxides (TMOs) with flexible band structures are of significant potential in the field of photocatalysis. The efficient utilization of renewable and green solar energy is of great importance to developing photocatalysts. To date, a wide range of TMOs systems has been developed as photocatalysts for water and air purification, but their practical applications in visible light-assisted chemical reactions are hindered mainly by its poor visible light absorption capacity. Introduction of N atoms into TMOs can narrow the band-gap energy to a lower value, enhance the absorption of visible light and suppress the recombination rate of photogenerated electrons and holes, thus improving the photocatalytic performance. This review summarizes the recent research on N-modified TMOs, including the influence of N doping amounts, N doping sites, and N-induced phase transformation. The introduced N greatly tuned the optical properties, electronic structure, and photocatalytic activity of the TMOs. The optimal N concentration and the influence of N doping sites are investigated. The substitutional N and interstitial N contributed differently to the band gap and electron transport. The introduced N can tune the vacancies in TMOs due to the charge compensation, which is vital for inducing different activity and selectivity. The topochemical ammonolysis process can convert TMOs to oxynitride with visible light absorption. By altering the band structures, these oxynitride materials showed enhanced photocatalytic activity. This review provides an overview of recent advances in N-doped TMOs and oxynitrides derived from TMOs as photocatalysts for environmental applications, as well as some relevant pointers for future burgeoning research development.
Collapse
|
49
|
Chen J, Chen T, Fang Q, Pan C, Akakuru OU, Ren W, Lin J, Sheng A, Ma X, Wu A. Gd 2O 3/b-TiO 2 composite nanoprobes with ultra-high photoconversion efficiency for MR image-guided NIR-II photothermal therapy. EXPLORATION (BEIJING, CHINA) 2022; 2:20220014. [PMID: 37324803 PMCID: PMC10190978 DOI: 10.1002/exp.20220014] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 04/28/2022] [Indexed: 06/16/2023]
Abstract
Photothermal therapy (PTT), as an important noninvasive and effective tumor treatment method, has been extensively developed into a powerful cancer therapeutic technique. Nevertheless, the low photothermal conversion efficiency and the limited tissue penetration of typical photothermal therapeutic agents in the first near-infrared (NIR-I) region (700-950 nm) are still the major barriers for further clinical application. Here, we proposed an organic/inorganic dual-PTT agent of synergistic property driven by polydopamine-modified black-titanium dioxide (b-TiO2@PDA) with excellent photoconversion efficiency in the second NIR (NIR-II) region (1000-1500 nm). More specifically, the b-TiO2 treated with sodium borohydride produced excessive oxygen vacancies resulting in oxygen vacancy band that narrowed the b-TiO2 band gap, and the small band gap led to NIR-II region wavelength (1064 nm) absorbance. Furthermore, the combination of defect energy level trapping carrier recombination heat generation and conjugate heat generation mechanism, significantly improved the photothermal performance of the PTT agent based on b-TiO2. The photothermal properties characterization indicated that the proposed dual-PTT agent possesses excellent photothermal performance and ultra-high photoconversion efficiency of 64.9% under 1064 nm laser irradiation, which can completely kill esophageal squamous cells. Meanwhile, Gd2O3 nanoparticles, an excellent magnetic resonance imaging (MRI) agent, were introduced into the nanosystem with similar dotted core-shell structure to enable the nanosystem achieve real-time MRI-monitored cancer therapeutic performance. We believe that this integrated nanotherapeutic system can not only solve the application of PTT in the NIR-II region, but also provide certain theoretical guidance for the clinical diagnosis and treatment of esophageal cancer.
Collapse
Affiliation(s)
- Jia Chen
- Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices and Zhejiang Engineering Research Center for Biomedical MaterialsNingbo Institute of Materials Technology and Engineering, CASNingboChina
- School of Life Science and EngineeringSouthwest Jiaotong UniversityChengduChina
| | - Tianxiang Chen
- Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices and Zhejiang Engineering Research Center for Biomedical MaterialsNingbo Institute of Materials Technology and Engineering, CASNingboChina
- Advanced Energy Science and Technology Guangdong LaboratoryHuizhouChina
| | - Qianlan Fang
- Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices and Zhejiang Engineering Research Center for Biomedical MaterialsNingbo Institute of Materials Technology and Engineering, CASNingboChina
- University of Chinese Academy of SciencesHuairouBeijingChina
| | - Chunshu Pan
- Advanced Energy Science and Technology Guangdong LaboratoryHuizhouChina
| | - Ozioma Udochukwu Akakuru
- Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices and Zhejiang Engineering Research Center for Biomedical MaterialsNingbo Institute of Materials Technology and Engineering, CASNingboChina
- University of Chinese Academy of SciencesHuairouBeijingChina
| | - Wenzhi Ren
- Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices and Zhejiang Engineering Research Center for Biomedical MaterialsNingbo Institute of Materials Technology and Engineering, CASNingboChina
- Advanced Energy Science and Technology Guangdong LaboratoryHuizhouChina
| | - Jie Lin
- Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices and Zhejiang Engineering Research Center for Biomedical MaterialsNingbo Institute of Materials Technology and Engineering, CASNingboChina
- Advanced Energy Science and Technology Guangdong LaboratoryHuizhouChina
| | - Aizhu Sheng
- Department of Radiology, Hwa Mei HospitalUniversity of Chinese Academy of SciencesNingboChina
| | - Xuehua Ma
- Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices and Zhejiang Engineering Research Center for Biomedical MaterialsNingbo Institute of Materials Technology and Engineering, CASNingboChina
- Advanced Energy Science and Technology Guangdong LaboratoryHuizhouChina
- Department of Radiology, Hwa Mei HospitalUniversity of Chinese Academy of SciencesNingboChina
| | - Aiguo Wu
- Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices and Zhejiang Engineering Research Center for Biomedical MaterialsNingbo Institute of Materials Technology and Engineering, CASNingboChina
- Advanced Energy Science and Technology Guangdong LaboratoryHuizhouChina
| |
Collapse
|
50
|
Photocatalytic properties of two new isostructural cobalt(II) and nickel(II) complexes having terphenyl-3,3″,4,4″-teteacarboxylic acid. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.116158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|