1
|
Zenna O, Younis SA, Hamed S, Zaki T, Makki S. Establishing an affordable solar-floating Fe 2O 3@A 1-xR x-TiO 2 photo-Fenton catalytic system through the cyclic utilization of iron waste to de-pollute textile water contamination. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 366:121863. [PMID: 39033618 DOI: 10.1016/j.jenvman.2024.121863] [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: 03/12/2024] [Revised: 07/06/2024] [Accepted: 07/12/2024] [Indexed: 07/23/2024]
Abstract
This study focuses on developing a cost-effective Fe2O3 catalyst from oilfield iron waste to create a floating heterogeneous photo-Fenton system with anatase/rutile(A/R) TiO2 heterophase photocatalyst (cork-Fe2O3@A1-xRx-TiO2) for treating textile pollution in sunlight. Through controlling sol-gel (SG) microwave heating technique, the A/R ratio of A1-xRx-TiO2 crystal is tuned (A/R ratio = 1.13 and Eg = 3.02 eV) to improve adsorption-photocatalytic removal of anionic/cationic dyes with an apparent kinetic rate (kapp) of 0.0074 min-1 under UV-visible irradiation. The developed cork-Fe2O3@A53.1R46.8-TiO2 floated system also outperforms the classical photo-Fenton with Fe/H2O2 benchmark, showing a 2-fold enhancement in textile dye degradation (kapp = 0.216 min-1 and space-time yield (SY) of 1.7*10-4 mol/E.g at pH 5.65) with high stability over four reuse cycles. The formation of Fe2O3@A53.1R46.8-TiO2 Type-II heterojunction is confirmed by optical and electrochemical analyses, allowing the acceleration of direct electron transfer mechanism and oxidative degradation of dyes during photo-Fenton reaction. As a case study, the cork-Fe2O3@A53.1R46.8-TiO2 system demonstrates a high capability for efficient mineralization of textile pollution in a real effluent, achieving 82 ± 2% reduction in the total organic contents at an operational cost of 2.61 $/kg.m3 in sunlight. Thus, this research addresses challenges in conventional Fenton chemistry, iron waste recycling, and catalyst retention, offering new insights for sustainable treatment of textile effluents and environmental protection.
Collapse
Affiliation(s)
- Omnia Zenna
- Physics Department, Faculty of Women for Arts, Science, and Education, Ain Shams University, PO Box, 11757, Cairo, Egypt
| | - Sherif A Younis
- Analysis and Evaluation Department, Egyptian Petroleum Research Institute, Nasr City, Cairo, 11727, Egypt.
| | - Sawsan Hamed
- Physics Department, Faculty of Women for Arts, Science, and Education, Ain Shams University, PO Box, 11757, Cairo, Egypt
| | - T Zaki
- Catalysis Department, Petroleum Refining Division, Egyptian Petroleum Research Institute, Nasr City, Cairo, 11727, Egypt
| | - Safaa Makki
- Physics Department, Faculty of Women for Arts, Science, and Education, Ain Shams University, PO Box, 11757, Cairo, Egypt
| |
Collapse
|
2
|
Seifikar F, Habibi-Yangjeh A. Floating photocatalysts as promising materials for environmental detoxification and energy production: A review. CHEMOSPHERE 2024; 355:141686. [PMID: 38513952 DOI: 10.1016/j.chemosphere.2024.141686] [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] [Revised: 03/08/2024] [Accepted: 03/10/2024] [Indexed: 03/23/2024]
Abstract
The oxygenation process of the catalyst surface, the incident-light harvesting capability, and facile recycling of utilized photocatalysts play key role in the outstanding photocatalytic performances. The typical existing photocatalysts in powder form have many drawbacks, such as difficult separation from the treated water, insufficient surface oxygenation, poor active surface area, low incident-light harvesting ability, and secondary pollution of the environment. A great number of scientific works introduced novel and fresh ideas related to designing floating photocatalytic systems by immobilizing highly active photocatalysts onto a floatable substrate. Thanks to direct contact with the illuminated light and oxygen molecules in the interface of water/air, the photocatalytic performance is maximized through production of more reactive species, employed in the photocatalytic reactions. Furthermore, facile recovering of the utilized photocatalysts for next processes avoids secondary pollution as well as diminishes the process's price. This review highlights the performance of developed floating photocatalysts for diverse applications. Furthermore, different floating substrates and possible mechanisms in floating photocatalysts are briefly mentioned. In addition, several emerging self-floating photocatalytic systems are taken attention and discussed. Specially, coupling photo-thermal and photocatalytic effects seems to be a good strategy for introducing a new class of floating photocatalyst to utilize the free, abundant, and green sunlight energy for the aims of water desalination and purification. Despite of a large number of attempts about the floating photocatalysts, there are still plenty of rooms for more in-depth research to be carried out for attaining the required characteristics of the large scale utilizations of these materials.
Collapse
Affiliation(s)
- Fatemeh Seifikar
- Department of Chemistry, Faculty of Science, University of Mohaghegh Ardabili, Ardabil, Iran
| | - Aziz Habibi-Yangjeh
- Department of Chemistry, Faculty of Science, University of Mohaghegh Ardabili, Ardabil, Iran.
| |
Collapse
|
3
|
Fu X, Zhou G, Li J, Yao Q, Han Z, Yang R, Chen X, Wang Y. Critical review on modified floating photocatalysts for emerging contaminants removal from landscape water: problems, methods and mechanism. CHEMOSPHERE 2023; 341:140043. [PMID: 37660787 DOI: 10.1016/j.chemosphere.2023.140043] [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: 05/22/2023] [Revised: 07/13/2023] [Accepted: 08/31/2023] [Indexed: 09/05/2023]
Abstract
Due to the disorderly discharge in modern production and daily life of people, emerging contaminants(ECs) began to appear in landscape water, and have become a key public concern. Because of the unique characteristics of landscape water, it is difficult to efficiently remove ECs either by natural purification or by traditional large-scale sewage treatment facilities. The ideal purification method is to remove them while maintaining a beautiful environment. Possessing the feature of low-density, floating photocatalysts could harvest sufficient light on the surface of the water for photocatalytic degradation, which may be an important supplement for ECs treatment in landscape water. This paper gave a review related to floating photocatalysts and proposed an idea of combining floating photocatalysts to construct bionic photocatalytic materials for contaminative landscape water treatment. Six types of common floating substrates and corresponding applications for floating photocatalysts were concluded in this paper, and the main problem leading to the low efficiency of photocatalysts and three corresponding three improvement strategies were discussed. Besides, the modification mechanisms of photocatalysts were discussed thoroughly. On this basis, the engineering application prospects of bionic photocatalytic materials were proposed to remove ECs in landscape water.
Collapse
Affiliation(s)
- Xiaoning Fu
- College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao, China.
| | - Guangzhu Zhou
- College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao, China.
| | - Jianping Li
- China Testing & Certification International Group Qingdao Jingcheng Testing Co., Ltd., Qingdao, 266426, China.
| | - Qiuhui Yao
- The Third Exploration Team, Shandong Bureau of Coal Geology, Tai'an, 271000, China.
| | - Zuozhen Han
- Shandong Provincial Key Laboratory of Depositional Mineralization and Sedimentary Minerals, College of Earth Science and Engineering, Shandong University of Science and Technology, Qingdao, China.
| | - Rongchao Yang
- College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao, China.
| | - Xi Chen
- College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao, China.
| | - Yuanhao Wang
- College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao, China.
| |
Collapse
|
4
|
Asgari S, Mohammadi Ziarani G, Badiei A, Ajalloueian F, Vasseghian Y. Electrospun composite nanofibers as novel high-performance and visible-light photocatalysts for removal of environmental pollutants: A review. ENVIRONMENTAL RESEARCH 2022; 215:114296. [PMID: 36116501 DOI: 10.1016/j.envres.2022.114296] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Revised: 07/28/2022] [Accepted: 09/05/2022] [Indexed: 06/15/2023]
Abstract
Environmental pollution caused by industries and human manipulations is coming a serious global challenge. On the other hand, the world is facing an energy crisis caused by population growth. Designing solar-driven photocatalysts which are inspired by the photosynthesis of plant leaves is a fantastic solution to use solar energy as green, available, and unlimited energy containing ∼50% visible light for the removal of environmental pollutants. The polymeric and non-polymeric-based electrospun composite nanofibers (NFs) are as innovative photocatalytic candidates which increase photocatalytic activity and transition from UV light to visible light and overcome the aggregation, photocorrosion, toxicity, and hard recycling and separation of the nanosized powder form of photocatalysts. The composite NFs are fabricated easily by either embedding the photocatalytic agents into the NFs during electrospinning or via their decorating on the surface of NFs post-electrospinning. Polyacrylonitrile-based, tungsten trioxide-based, zinc oxide-based, and titanium dioxide-based composite NFs were revealed as the most reported composite NFs. All the lately investigated electrospun composite NFs indicated long-term stability, high photocatalytic efficiency (∼> 80%) within a short time of light radiation (10-430 min), and high stability after several cycles of use. They were applied in various applications including degradation of dyes/antibiotics, water splitting, wastewater treatment, antibacterial usage, etc. The photogenerated species especially holes, O2∙-, and .OH were mostly responsible for the photocatalytic mechanism and pathway. The electrospun composite NFs have the potential to use in large-scale productions in condition that their thickness and recycling conditions are optimized, and their toxicity and detaching are resolved.
Collapse
Affiliation(s)
- Shadi Asgari
- Department of Organic Chemistry, Faculty of Chemistry, Alzahra University, P.O. Box 1993893973, Tehran, Iran
| | - Ghodsi Mohammadi Ziarani
- Department of Organic Chemistry, Faculty of Chemistry, Alzahra University, P.O. Box 1993893973, Tehran, Iran.
| | - Alireza Badiei
- School of Chemistry, College of Science, University of Tehran, Tehran, Iran
| | - Fatemeh Ajalloueian
- The Danish National Research Foundation and Villum Foundation's Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics (IDUN), Department of Health Technology, Technical University of Denmark, Ørsteds Plads, 2800, Kgs, Lyngby, Denmark
| | - Yasser Vasseghian
- Department of Chemistry, Soongsil University, Seoul, 06978, South Korea; Department of Sustainable Engineering, Saveetha School of Engineering, SIMATS, Chennai, 602105, India; The University of Johannesburg, Department of Chemical Engineering, P.O. Box 17011, Doornfontein, 2088, South Africa.
| |
Collapse
|
5
|
Bhatti MA, Almani KF, Shah AA, Tahira A, Chana IA, Aftab U, Ibupoto MH, Mirjat AN, Aboelmaaref A, Nafady A, Vigolo B, Ibupoto ZH. Renewable and eco-friendly ZnO immobilized onto dead sea sponge floating materials with dual practical aspects for enhanced photocatalysis and disinfection applications. NANOTECHNOLOGY 2022; 34:035602. [PMID: 36215879 DOI: 10.1088/1361-6528/ac98cc] [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: 02/16/2022] [Accepted: 10/10/2022] [Indexed: 06/16/2023]
Abstract
In this study, we have investigated the role of natural dead sea sponge (DSS, Porifera) as a three-dimensional (3D) porous host substrate for the immobilization of nanostructured ZnO material towards the development of ZnO based floating photocatalysts for efficient removal of methylene blue (MB) dye under the illumination of sunlight. After photodegradation, the treated water after dye degradation contains several pathogens, different disinfectants or chemical reagents that are essentially used. This is not the case for DSS as it can naturally kill any pathogens during the wastewater treatment process. To explore these functions, ZnO nanosheets were incorporated onto DSS via hydrothermal protocol and the as prepared ZnO/DSS hybrid material exhibited approximately ∼100% degradation efficiency for the removal of MB. Importantly, the degradation kinetics associated with the fabricated ZnO/DSS was remarkably accelerated as evidenced by the high values of degradation reaction rate constants (3.35 × 10-2min-1). The outperformance of ZnO/DSS could be attributed to the adsorption caused by its 3D porous structure together with the high rapid oxidation of MB. Furthermore, the high charge separation of electron-hole pairs, natural porosity, and abundant catalytic sites offered by the hybrid ZnO/DSS floating photocatalyst have enabled quantitative (∼100%) degradation efficiency for MB. Finally, the excellent reusability results confirm the feasibility of using natural ZnO/DSS-based photocatalyst for practical solution of wastewater treatment and other environmental problems.
Collapse
Affiliation(s)
- Muhammad Ali Bhatti
- Institute of Environmental Sciences, University of Sindh Jamshoro, 76080, Sindh, Pakistan
| | - Khalida Faryal Almani
- Institute of Environmental Sciences, University of Sindh Jamshoro, 76080, Sindh, Pakistan
| | - Aqeel Ahmed Shah
- Department of Metallurgy, NED University of Engineering and Technology, Karachi, Pakistan
| | - Aneela Tahira
- Dr M.A Kazi Institute of Chemistry, University of Sindh Jamshoro, 76080, Sindh, Pakistan
| | - Iftikhar Ahmed Chana
- Department of Metallurgy, NED University of Engineering and Technology, Karachi, Pakistan
| | - Umair Aftab
- Mehran University of Engineering and Technology, 7680 Jamshoro, Sindh, Pakistan
| | | | - Abdul Nabi Mirjat
- Institute of Microbiology, University of Sindh Jamshoro, 76080, Sindh, Pakistan
| | - Amal Aboelmaaref
- Department of Chemistry, Faculty of Science, Helwan University, Ain Helwan, Egypt
| | - Ayman Nafady
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | | | - Zafar Hussain Ibupoto
- Dr M.A Kazi Institute of Chemistry, University of Sindh Jamshoro, 76080, Sindh, Pakistan
| |
Collapse
|
6
|
Bhatti MA, Gilani SJ, Shah AA, Channa IA, Almani KF, Chandio AD, Halepoto IA, Tahira A, Bin Jumah MN, Ibupoto ZH. Effective Removal of Methylene Blue by Surface Alteration of TiO 2 with Ficus Carica Leaf Extract under Visible Light. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12162766. [PMID: 36014631 PMCID: PMC9416792 DOI: 10.3390/nano12162766] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 07/27/2022] [Accepted: 08/05/2022] [Indexed: 05/17/2023]
Abstract
The present study describes the use of a leaf extract from Ficus carica as a source of natural antioxidants for the surface alteration of bulk titanium dioxide (TiO2) in two steps. First, the hydro-thermal treatment of the bulk TiO2 material was carried out and followed by thermal annealing at 300 °C for 3 h in air. The role of the leaf extract of Ficus carica on the performance of the bulk TiO2 material for the removal of methylene blue (MB) was also studied. Various analytical techniques such as powder X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS) were used to explore the crystalline structure, morphology, and composition. The bulk TiO2 material after the leaf-extract treatment exhibited mixed anatase and rutile phases, a flower-like morphology, and Ti, O, and C were its main elements. The average crystallite size was also calculated, and the obtained values for the bulk TiO2 material, 18.11 nm, and the treated bulk TiO2 material with various amounts, 5, 10, and 15 mL, of leaf extract were 16.4, 13.16, and 10.29 nm respectively. Moreover, Fourier-transform infrared spectroscopy validated the typical metal-oxygen bonds and strengthened the XRD results. The bulk TiO2 material chemically treated with Ficus carica has shown outstanding activity towards the degradation of MB under sunlight. The 15 mL of Ficus carica extract significantly enhanced the photocatalytic activity of the bulk TiO2 material towards the degradation of MB. The dye degradation efficiency was found to be 98.8%, which was experimentally proven by the Fourier Transform Infrared spectroscopoyy (FTIR) analysis. The obtained performance of the bulk TiO2 material with Ficus carica revealed excellent surface modifying properties for poorly-performing photocatalysts towards the degradation of synthetic dyes when used in their pristine form. The presented approach suggests that Ficus carica could be of great interest for tuning the surface properties of materials, either in the form of nano-size or bulk-phase in a particular application.
Collapse
Affiliation(s)
- Muhammad Ali Bhatti
- Institute of Environmental Sciences, University of Sindh Jamshoro, Jamshoro 76080, Sindh, Pakistan
| | - Sadaf Jamal Gilani
- Department of Basic Health Sciences, Preparatory Year, Princess Nourah Bint Abdulrahman University, Riyadh 11671, Saudi Arabia
| | - Aqeel Ahmed Shah
- Thin Film and Wet Chemistry Lab, Department of Metallurgical Engineering, NED University of Engineering and Technology, Karachi 75270, Sindh, Pakistan
| | - Iftikhar Ahmed Channa
- Thin Film and Wet Chemistry Lab, Department of Metallurgical Engineering, NED University of Engineering and Technology, Karachi 75270, Sindh, Pakistan
| | - Khalida Faryal Almani
- Institute of Environmental Sciences, University of Sindh Jamshoro, Jamshoro 76080, Sindh, Pakistan
| | - Ali Dad Chandio
- Thin Film and Wet Chemistry Lab, Department of Metallurgical Engineering, NED University of Engineering and Technology, Karachi 75270, Sindh, Pakistan
| | - Imran Ali Halepoto
- Institute of Physics, University of Sindh, Jamshoro 76080, Sindh, Pakistan
| | - Aneela Tahira
- Dr. M.A Kazi Institute of Chemistry, University of Sindh, Jamshoro 76080, Sindh, Pakistan
| | - May Nasser Bin Jumah
- Biology Department, College of Science, Princess Nourah Bint Abdulrahman University, Riyadh 11671, Saudi Arabia
- Environment and Biomaterial Unit, Health Sciences Research Center, Princess Nourah Bint Abdulrahman University, Riyadh 11671, Saudi Arabia
- Saudi Society for Applied Science, Princess Nourah Bint Abdulrahman University, Riyadh 11671, Saudi Arabia
| | - Zafar Hussain Ibupoto
- Dr. M.A Kazi Institute of Chemistry, University of Sindh, Jamshoro 76080, Sindh, Pakistan
- Correspondence:
| |
Collapse
|
7
|
Djellabi R, Zhao X, Ordonez MF, Falletta E, Bianchi CL. Comparison of the photoactivity of several semiconductor oxides in floating aerogel and suspension systems towards the reduction of Cr(VI) under visible light. CHEMOSPHERE 2021; 281:130839. [PMID: 34000659 DOI: 10.1016/j.chemosphere.2021.130839] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 04/08/2021] [Accepted: 05/04/2021] [Indexed: 06/12/2023]
Abstract
A massive amount of research has been done over the last three decades to develop photoactive materials which could be suitable for real-world use in water remediation sector. Water-floating photocatalysts could be one of the best options due to their technological characteristics in terms of efficiency and reasonability including a high oxygenation of the photocatalyst surface, a fully sunlight irradiation, easy recovery and reuse. In the present study, aerogel water-floating based materials were fabricated using poly(vinyl alcohol) and polyvinylidene fluoride as a polymer platform, and loaded with different semiconductors such as g-C3N4, MoO3, Bi2O3, Fe2O3 or WO3. The photocatalytic efficiencies of aerogel floating materials and the suspension of above-mentioned semiconductors were compared evaluating the photoreduction of Cr(VI) under visible light (λ > 420 nm). The results showed that Fe2O3 suspension was the most efficient but the slowest in floating system. On the contrary, g-C3N4 exhibited a good performance in suspension system, and on top of that it was very effective in floating system, wherein it ensures a total reduction of 10 ppm-Cr(VI) to Cr(III) within 20 min.
Collapse
Affiliation(s)
- Ridha Djellabi
- Università Degli Studi di Milano, Dip. Chimica and INSTM-UdR Milano, Via Golgi, 19, 20133, Milano, Italy.
| | - Xu Zhao
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, PR China
| | - Marcela Frias Ordonez
- Università Degli Studi di Milano, Dip. Chimica and INSTM-UdR Milano, Via Golgi, 19, 20133, Milano, Italy
| | - Ermelinda Falletta
- Università Degli Studi di Milano, Dip. Chimica and INSTM-UdR Milano, Via Golgi, 19, 20133, Milano, Italy
| | - Claudia L Bianchi
- Università Degli Studi di Milano, Dip. Chimica and INSTM-UdR Milano, Via Golgi, 19, 20133, Milano, Italy
| |
Collapse
|
8
|
Sboui M, Lachheb H, Bouattour S, Gruttadauria M, La Parola V, Liotta LF, Boufi S. TiO 2/Ag 2O immobilized on cellulose paper: A new floating system for enhanced photocatalytic and antibacterial activities. ENVIRONMENTAL RESEARCH 2021; 198:111257. [PMID: 33974837 DOI: 10.1016/j.envres.2021.111257] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 03/06/2021] [Accepted: 04/26/2021] [Indexed: 06/12/2023]
Abstract
Paper-TiO2-Ag2O floating photocatalysts were produced under mild condition and their photocatalytic activity for the degradation of aromatic amine under sunlight stimulant was investigated. Characterizations by Raman, XRD, XPS, DRS and PL confirmed the presence of TiO2 and Ag2O, and the morphology of the appended TiO2/Ag2O layer was probed by FE-SEM. The photocatalytic activity of the prepared samples was investigated by the degradation of aniline (AN) in water under simulated sun-light illumination and constrained conditions, i.e. non-stirring and non-oxygenation. The presence of Ag2O combined with TiO2 was shown to improve the resistance of paper to bacteria attack, thus increasing the durability of the photocatalyst. Thanks to its hydrophobic character, the paper-TiO2-Ag2O NPs can be employed as useful floating photocatalyst and can be reused in continuous cycles.
Collapse
Affiliation(s)
- Mouheb Sboui
- Faculty of Sciences, University of Sfax, Laboratoire de Chimie Inorganique (LCI), Sfax BP1171-3018, Tunisia.
| | - Hinda Lachheb
- URCMEP (UR11ES85), Faculty of Sciences, University of Gabès, 6029, Gabès, Tunisia
| | - Soraa Bouattour
- Faculty of Sciences, University of Sfax, Laboratoire de Chimie Inorganique (LCI), Sfax BP1171-3018, Tunisia
| | - Michelangelo Gruttadauria
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Viale delle Scienze, Ed. 17, 90128, Palermo, Italy
| | - Valeria La Parola
- Istituto per lo Studio dei Materiali Nanostrutturati (ISMN-CNR), Via Ugo La Malfa 153, 90146, Palermo, Italy
| | - Leonarda Francesca Liotta
- Istituto per lo Studio dei Materiali Nanostrutturati (ISMN-CNR), Via Ugo La Malfa 153, 90146, Palermo, Italy.
| | - Sami Boufi
- Faculty of Sciences, University of Sfax, Laboratoire Sciences des Matériaux et Environnement (LSME), Sfax BP1171-3018, Tunisia.
| |
Collapse
|
9
|
Mohamad Idris N, Rajakumar J, Cheong KY, Kennedy BJ, Ohno T, Yamakata A, Lee HL. Titanium Dioxide/Polyvinyl Alcohol/Cork Nanocomposite: A Floating Photocatalyst for the Degradation of Methylene Blue under Irradiation of a Visible Light Source. ACS OMEGA 2021; 6:14493-14503. [PMID: 34124472 PMCID: PMC8190905 DOI: 10.1021/acsomega.1c01458] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 05/11/2021] [Indexed: 05/06/2023]
Abstract
Photocatalytic degradation by the titanium dioxide (TiO2) photocatalyst attracts tremendous interest due to its promising strategy to eliminate pollutants from wastewater. The floating photocatalysts are explored as potential candidates for practical wastewater treatment applications that could overcome the drawbacks posed by the suspended TiO2 photocatalysis system. The problem occurs when the powdered TiO2 applied directly into the treated solution will form a slurry, making its reuse become a difficult step after treatment. In this study, the immobilization of titanium dioxide nanoparticles (TiO2 NPs) on the floating substrate (cork) employing polyvinyl alcohol (PVA) as a binder to anchor TiO2 NPs on the surface of the cork was carried out. Characterizations such as Fourier transformer infrared, X-ray diffraction (XRD), ultraviolet-visible spectroscopy (UV-vis), zeta potential, photoluminescence spectroscopy, femtosecond to millisecond time-resolved visible to mid-IR absorption spectroscopy, ion chromatography, and scanning electron microscopy-energy-dispersive X-ray spectroscopy (SEM-EDX) analyses were employed. XRD analysis revealed the formation of anatase-phase TiO2 NPs. The results demonstrated that the crystallite size was 9.36 nm. The band gap energy of TiO2 NPs was determined as 3.0 eV. PL analysis verified that TiO2 NPs possessed a slower recombination rate of electron-hole pairs as compared to anatase TiO2. The result was attributed by the behavior of photogenerated charge carriers on TiO2 NPs, which existed as shallowly trapped electrons that could survive longer than a few milliseconds in this study. Furthermore, SEM-EDX analysis indicated that TiO2 NPs were well distributed on the surface of the cork. At the optimal mole ratio of TiO2/PVA (1:8), the TiO2/PVA/cork floating photocatalyst degraded at 98.43% of methylene blue (MB) under a visible light source which performed better than under sunlight irradiation (77.09% of MB removal) for 120 min. Besides, the mineralization result has measured the presence of sulfate anions after photocatalytic activities, which achieved 86.13% (under a visible light source) and 65.34% (under sunlight). The superior photodegradation performance for MB was mainly controlled by the reactive oxygen species of the superoxide radical (•O2 -). The degradation kinetics of MB followed the first-order kinetics. Meanwhile, the Langmuir isotherm model was fitted for the adsorption isotherm. The floating photocatalyst presented good reusability, resulting in 78.13% of MB removal efficiency even after five cycles. Our TiO2/PVA/cork floating photocatalyst fabrication and high photocatalytic performance are potentially used in wastewater treatment, especially under visible light irradiation.
Collapse
Affiliation(s)
- Nurul
Hidayah Mohamad Idris
- Nanomaterials
Research Group, School of Chemical Sciences, Universiti Sains Malaysia, USM, 11800 Penang, Malaysia
| | - Jayalakshmi Rajakumar
- Nanomaterials
Research Group, School of Chemical Sciences, Universiti Sains Malaysia, USM, 11800 Penang, Malaysia
| | - Kuan Yew Cheong
- Electronic
Materials Research Group, School of Materials & Mineral Resources
Engineering, Universiti Sains Malaysia, Nibong Tebal, 14300 Penang, Malaysia
| | - Brendan J. Kennedy
- School
of Chemistry, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Teruhisa Ohno
- Department
of Materials Science, Faculty of Engineering, Kyushu Institute of Technology, 1-1 Sensui-cho, Tobata-ku, Kitakyushu, Fukuoka 804-8550, Japan
| | - Akira Yamakata
- Graduate
School of Engineering, Toyota Technological
Institute, 2-12-1 Hisakata, Tempaku, Nagoya 468-8511, Japan
| | - Hooi Ling Lee
- Nanomaterials
Research Group, School of Chemical Sciences, Universiti Sains Malaysia, USM, 11800 Penang, Malaysia
- School
of Chemistry, The University of Sydney, Sydney, New South Wales 2006, Australia
| |
Collapse
|
10
|
A Buoyant, Microstructured Polymer Substrate for Photocatalytic Degradation Applications. Catalysts 2018. [DOI: 10.3390/catal8100482] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Microbubble fabrication of poly(dimethylsiloxane) (PDMS) beads with incorporated TiO2 provides a low-density, microstructured photocatalyst that is buoyant in water. This approach surmounts many of the challenges traditionally encountered in the generation of buoyant photocatalysts, an area which is critical for the implementation of widespread environmental cleaning of organic pollutants in water resources. Because the incorporation into the polymer bead surface is done at low temperatures, the crystal structure of TiO2 is unaltered, ensuring high-quality photocatalytic activity, while PDMS is well-established as biocompatible, temperature stable, and simple to produce. The photocatalyst is shown to degrade methylene blue faster than other buoyant, TiO2-based photocatalysts, and only an order of magnitude less than direct suspension of an equivalent amount of photocatalyst in solution, even though the photocatalyst is only present at the surface of the solution. The reusability of the TiO2/PDMS beads is also strong, showing no depreciation in photocatalytic activity after five consecutive degradation trials.
Collapse
|
11
|
Jiménez-López J, Linares N, Serrano E, García-Martínez J. Visible-Light-Activated Black Organotitanias: How Synthetic Conditions Influence Their Structure and Photocatalytic Activity. Chempluschem 2018; 83:390-400. [PMID: 31957357 DOI: 10.1002/cplu.201800054] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 03/16/2018] [Indexed: 11/10/2022]
Abstract
A series of low-temperature, visible-light-activated black organotitanias were synthesised through a sol-gel strategy that allowed the in situ incorporation of p-phenylenediamine (PPD) into the framework of anatase nanoparticles. The effect of the synthetic conditions on the crystalline structure and photocatalytic activity of these materials was assessed by several characterisation techniques, which revealed a small crystalline domain size (4.6-5.5 nm), effective incorporation of PPD inside the nanoparticles, and a significant reduction in the band gap of these materials (from 3.2 to 2.7-2.9 eV). A systematic study of the synthetic parameters also allowed a significant reduction of the solvent used for the preparation of these black organotitanias (20-fold), as well as the crystallisation time, without compromising the structural properties and photocatalytic activity of these materials. The organotitanias with the highest PPD content and high crystallinity result in the best performing materials in the photocatalytic degradation of rhodamine 6G under both UV- and visible-light irradiation.
Collapse
Affiliation(s)
- Jesús Jiménez-López
- Laboratorio de Nanotecnología Molecular, Departamento de Química Inorgánica, Universidad de Alicante, Ctra. San Vicente-Alicante s/n, 03690, Alicante, Spain
| | - Noemi Linares
- Laboratorio de Nanotecnología Molecular, Departamento de Química Inorgánica, Universidad de Alicante, Ctra. San Vicente-Alicante s/n, 03690, Alicante, Spain
| | - Elena Serrano
- Laboratorio de Nanotecnología Molecular, Departamento de Química Inorgánica, Universidad de Alicante, Ctra. San Vicente-Alicante s/n, 03690, Alicante, Spain
| | - Javier García-Martínez
- Laboratorio de Nanotecnología Molecular, Departamento de Química Inorgánica, Universidad de Alicante, Ctra. San Vicente-Alicante s/n, 03690, Alicante, Spain
| |
Collapse
|
12
|
Tang J, Liu Y, Hu Y, Lv G, Yang C, Yang G. Carbothermal Reduction Induced Ti3+
Self-Doped TiO2
/GQD Nanohybrids for High-Performance Visible Light Photocatalysis. Chemistry 2018; 24:4390-4398. [DOI: 10.1002/chem.201705637] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Indexed: 01/22/2023]
Affiliation(s)
- Jialin Tang
- National Engineering Research Center of, Electromagnetic Radiation Control Materials; University of, Electronic Science and Technology of China; Chengdu 610054 P.R. China
- Institute of Chemical Materials; China Academy of Engineering Physics; Sichuan 621900 P.R. China
| | - Yousong Liu
- Institute of Chemical Materials; China Academy of Engineering Physics; Sichuan 621900 P.R. China
| | - Yingjie Hu
- School of Environmental Science; Nanjing Xiaozhuang University; Nanjing 211171 P.R. China
| | - Guoqing Lv
- Institute of Chemical Materials; China Academy of Engineering Physics; Sichuan 621900 P.R. China
| | - Chengtao Yang
- National Engineering Research Center of, Electromagnetic Radiation Control Materials; University of, Electronic Science and Technology of China; Chengdu 610054 P.R. China
| | - Guangcheng Yang
- Institute of Chemical Materials; China Academy of Engineering Physics; Sichuan 621900 P.R. China
| |
Collapse
|
13
|
Shi B, Jia X, Guo Z. An easy preparation of photo-response TiO2@copper wire mesh with quick on/off switchable superwetting for high efficiency oil–water separation. NEW J CHEM 2018. [DOI: 10.1039/c8nj03710h] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A photo-response superwetting was easily fabricated using a hydrothermal method and titanium dioxide (TiO2) on a copper wire mesh (CWM).
Collapse
Affiliation(s)
- Bing Shi
- School of Environment and Safety Engineering
- Jiangsu University
- Zhenjiang 212013
- China
- State Key Laboratory of Solid Lubrication
| | - Xiaohua Jia
- School of Environment and Safety Engineering
- Jiangsu University
- Zhenjiang 212013
- China
| | - Zhiguang Guo
- State Key Laboratory of Solid Lubrication
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
- China
| |
Collapse
|
14
|
Facile synthesis of high-thermostably ordered mesoporous TiO 2 /SiO 2 nanocomposites: An effective bifunctional candidate for removing arsenic contaminations. J Colloid Interface Sci 2017; 485:32-38. [DOI: 10.1016/j.jcis.2016.09.022] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Revised: 09/09/2016] [Accepted: 09/12/2016] [Indexed: 11/19/2022]
|
15
|
Phenol photocatalytic degradation over mesoporous TUD-1-supported chromium oxide-doped titania photocatalyst. CHINESE JOURNAL OF CATALYSIS 2016. [DOI: 10.1016/s1872-2067(16)62492-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
16
|
Zhang Y, Xing Z, Liu X, Li Z, Wu X, Jiang J, Li M, Zhu Q, Zhou W. Ti 3+ Self-Doped Blue TiO 2(B) Single-Crystalline Nanorods for Efficient Solar-Driven Photocatalytic Performance. ACS APPLIED MATERIALS & INTERFACES 2016; 8:26851-26859. [PMID: 27652448 DOI: 10.1021/acsami.6b09061] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Ti3+ self-doped blue TiO2(B) single-crystalline nanorods (b-TR) are fabricated via a simple sol-gelation method, cooperated with hydro-thermal treatment and subsequent in situ treatment method, and afterward annealed at 350 °C in Ar. The structures are characterized by X-ray diffraction (XRD), Raman, X-ray photoelectron spectroscopy (XPS), diffuse reflectance spectroscopy (UV-vis), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The prepared b-TR with narrow band gap possesses single-crystalline TiO2(B) phase, Ti3+ self-doping, and one-dimensional (1D) rodlike nanostructure. In addition, the improved photocatalytic performance is studied by decomposition of Rhodamine B (RhB) and hydrogen evolution. The degradation rate of RhB by Ti3+ self-doped blue TiO2(B) single-crystalline nanorods is ∼6.9- and 2.1-times higher compared with the rates of titanium dioxide nanoparticles and pristine TiO2(B) nanorods under visible light illumination, respectively. The hydrogen evolution rate of b-TR is 26.6 times higher compared with that of titanium dioxide nanoparticles under AM 1.5 irradiation. The enhanced photocatalytic performances arise from the synergetic action of the special TiO2(B) phase, Ti3+ self-doping, and the 1D rod-shaped single-crystalline nanostructure, favoring the visible light utilization and the separation and transportation of photogenerated charge carriers.
Collapse
Affiliation(s)
- Yan Zhang
- Department of Environmental Science, School of Chemistry and Materials Science, Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University , Harbin 150080, PR China
| | - Zipeng Xing
- Department of Environmental Science, School of Chemistry and Materials Science, Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University , Harbin 150080, PR China
| | - Xuefeng Liu
- Department of Environmental Science, School of Chemistry and Materials Science, Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University , Harbin 150080, PR China
| | - Zhenzi Li
- Department of Epidemiology and Biostatistics, Harbin Medical University , Harbin 150086, PR China
| | - Xiaoyan Wu
- Department of Epidemiology and Biostatistics, Harbin Medical University , Harbin 150086, PR China
| | - Jiaojiao Jiang
- Department of Environmental Science, School of Chemistry and Materials Science, Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University , Harbin 150080, PR China
| | - Meng Li
- Department of Environmental Science, School of Chemistry and Materials Science, Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University , Harbin 150080, PR China
| | - Qi Zhu
- Department of Environmental Science, School of Chemistry and Materials Science, Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University , Harbin 150080, PR China
| | - Wei Zhou
- Department of Environmental Science, School of Chemistry and Materials Science, Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University , Harbin 150080, PR China
| |
Collapse
|
17
|
Liu X, Xing Z, Zhang H, Wang W, Zhang Y, Li Z, Wu X, Yu X, Zhou W. Fabrication of 3 D Mesoporous Black TiO2 /MoS2 /TiO2 Nanosheets for Visible-Light-Driven Photocatalysis. CHEMSUSCHEM 2016; 9:1118-24. [PMID: 27111114 DOI: 10.1002/cssc.201600170] [Citation(s) in RCA: 79] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2016] [Indexed: 05/14/2023]
Abstract
A novel 3 D mesoporous black TiO2 (MBT)/MoS2 /MBT sandwich-like nanosheet was successfully fabricated using a facile mechanochemical process combined with an in situ solid-state chemical reduction approach, followed by mild calcination (350 °C) under an argon atmosphere. The MBT/MoS2 /MBT exhibits a 3 D sandwich-like nanosheet structure and heterojunctions are formed at the interfaces between MoS2 and black TiO2 . The significantly narrowed band gap of MBT/MoS2 /MBT is attributed to the introduction of MoS2 and the formed Ti(3+) species in the frameworks. The visible-light photocatalytic degradation rate of methyl orange and the hydrogen production rate are as high as 89.86 % and 0.56 mmol h(-1) g(-1) , respectively. The introduction of MoS2 and Ti(3+) in the frameworks favors the visible-light absorption and the separation of photogenerated charges, and the 3 D sandwich-like heterojunction structure facilitates the transfer of photogenerated charges.
Collapse
Affiliation(s)
- Xuefeng Liu
- Department of Environmental Science, School of Chemistry and Materials Science, Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of PR China, Heilongjiang University, No. 74 Xuefu Road, Nangang District, Harbin City, Heilongjiang Province, 150080, P.R. China
| | - Zipeng Xing
- Department of Environmental Science, School of Chemistry and Materials Science, Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of PR China, Heilongjiang University, No. 74 Xuefu Road, Nangang District, Harbin City, Heilongjiang Province, 150080, P.R. China.
| | - Hang Zhang
- Department of Environmental Science, School of Chemistry and Materials Science, Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of PR China, Heilongjiang University, No. 74 Xuefu Road, Nangang District, Harbin City, Heilongjiang Province, 150080, P.R. China
| | - Wenmei Wang
- Department of Environmental Science, School of Chemistry and Materials Science, Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of PR China, Heilongjiang University, No. 74 Xuefu Road, Nangang District, Harbin City, Heilongjiang Province, 150080, P.R. China
| | - Yan Zhang
- Department of Environmental Science, School of Chemistry and Materials Science, Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of PR China, Heilongjiang University, No. 74 Xuefu Road, Nangang District, Harbin City, Heilongjiang Province, 150080, P.R. China
| | - Zhenzi Li
- Department of Epidemiology and Biostatistics, Harbin Medical University, No. 194 Xuefu Road, Nangang District, Harbin City, Heilongjiang Province, 150040, P.R. China
| | - Xiaoyan Wu
- Department of Epidemiology and Biostatistics, Harbin Medical University, No. 194 Xuefu Road, Nangang District, Harbin City, Heilongjiang Province, 150040, P.R. China
| | - Xiujuan Yu
- Department of Environmental Science, School of Chemistry and Materials Science, Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of PR China, Heilongjiang University, No. 74 Xuefu Road, Nangang District, Harbin City, Heilongjiang Province, 150080, P.R. China.
| | - Wei Zhou
- Department of Environmental Science, School of Chemistry and Materials Science, Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of PR China, Heilongjiang University, No. 74 Xuefu Road, Nangang District, Harbin City, Heilongjiang Province, 150080, P.R. China.
| |
Collapse
|
18
|
Zhang H, Xing Z, Zhang Y, Li Z, Wu X, Liu C, Zhu Q, Zhou W. Ni2+ and Ti3+ co-doped porous black anatase TiO2 with unprecedented-high visible-light-driven photocatalytic degradation performance. RSC Adv 2015. [DOI: 10.1039/c5ra23743b] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A black Ni doped porous TiO2 were fabricated via an in situ solid-state chemical reduction approach, which exhibited excellent visible-light-driven performance.
Collapse
Affiliation(s)
- Hang Zhang
- Key Laboratory of Functional Inorganic Material Chemistry
- Ministry of Education of the People's Republic of China
- Heilongjiang University
- Harbin 150080
- P. R. China
| | - Zipeng Xing
- Key Laboratory of Functional Inorganic Material Chemistry
- Ministry of Education of the People's Republic of China
- Heilongjiang University
- Harbin 150080
- P. R. China
| | - Yan Zhang
- Key Laboratory of Functional Inorganic Material Chemistry
- Ministry of Education of the People's Republic of China
- Heilongjiang University
- Harbin 150080
- P. R. China
| | - Zhenzi Li
- Department of Epidemiology and Biostatistics
- Harbin Medical University
- Harbin 150086
- P. R. China
| | - Xiaoyan Wu
- Department of Epidemiology and Biostatistics
- Harbin Medical University
- Harbin 150086
- P. R. China
| | - Chuntao Liu
- Key Laboratory of Functional Inorganic Material Chemistry
- Ministry of Education of the People's Republic of China
- Heilongjiang University
- Harbin 150080
- P. R. China
| | - Qi Zhu
- Key Laboratory of Functional Inorganic Material Chemistry
- Ministry of Education of the People's Republic of China
- Heilongjiang University
- Harbin 150080
- P. R. China
| | - Wei Zhou
- Key Laboratory of Functional Inorganic Material Chemistry
- Ministry of Education of the People's Republic of China
- Heilongjiang University
- Harbin 150080
- P. R. China
| |
Collapse
|