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Pimsawat N, Theerakulpisut S, Kamwilaisak K. Tailoring visible-light active TiO 2/cellulose nanocomposites with controlled crystalline structure for enhanced photocatalytic performance. Sci Rep 2024; 14:101. [PMID: 38168572 PMCID: PMC10762182 DOI: 10.1038/s41598-023-50749-2] [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: 11/06/2023] [Accepted: 12/24/2023] [Indexed: 01/05/2024] Open
Abstract
This work involves a green and simple synthesis of TiO2 nanoparticles on cellulose under mild conditions without the need for calcination via hydrolysis of titanium oxysulfate (TiOSO4). The synthesis conditions, such as sulfuric acid concentration (0-10% wt), temperature (70-90 ℃), and time (4-8 h), focused on precisely controlling the structure of TiO2 to enhance its photocatalytic effectiveness under visible light. At a lower 2.5 wt% sulfuric acid concentration, pure anatase was formed on the cellulose, while an increase in the range of 5.0-7.5 wt% sulfuric acid concentration yielded a rutile phase, resulting in a mixed phase of anatase and rutile on the cellulose. The pure rutile phase was found at a low temperature (70 ℃), while increased temperature led to the formation of the anatase phase. These results confirmed that the formation of crystalline TiO2 phase on the cellulose depended on sulfuric acid concentration and temperature for hydrolysis. Additionally, the photocatalytic properties of the obtained materials were evaluated by degradationvisible of Rhodamine B (RhB) under UV and visible light. The findings revealed that the mixed phase (anatase/rutile) of TiO2 on the cellulose demonstrated a superior photocatalytic efficiency (99.2%) compared to pure anatase (85.75%) and rutile (75.08%) when exposed to visible light.
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Affiliation(s)
- Nutsupa Pimsawat
- Department of Chemical Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Somnuk Theerakulpisut
- Energy Management and Conservation Office, Faculty of Engineering, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Khanita Kamwilaisak
- Department of Chemical Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen, 40002, Thailand.
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Negash A, Mohammed S, Weldekirstos HD, Ambaye AD, Gashu M. Enhanced photocatalytic degradation of methylene blue dye using eco-friendly synthesized rGO@ZnO nanocomposites. Sci Rep 2023; 13:22234. [PMID: 38097751 PMCID: PMC10721910 DOI: 10.1038/s41598-023-48826-7] [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: 09/20/2023] [Accepted: 11/30/2023] [Indexed: 12/17/2023] Open
Abstract
Industrial chemical pollutants such as methylene blue (MB) dye are released into the water body and potentially cause harm to the human and aquatic biosphere. Therefore, this study aims to synthesize eco-friendly nanocatalysts, i.e., reduced graphene oxide (rGO), zinc oxide (ZnO), and reduced graphene oxide-zinc oxide (rGO@ZnO) nanocomposites, for efficient photocatalytic degradation of MB dye. A graphite rod was obtained from waste dry cell batteries for the electrochemical exfoliation synthesis of graphene oxide (GO) and rGO. For the eco-friendly synthesis of ZnO and rGO@ZnO nanocatalysts, Croton macrostachyus leaf extract was used as a reducing and capping agent. The synthesized nanocatalysts were characterized using a UV-Vis spectrophotometer, Fourier transform infrared spectroscopy, X-ray diffraction, and scanning electron microscopy with energy-dispersive X-ray. The eco-friendly synthesized rGO, ZnO, and rGO@ZnO nanocatalysts were applied for the photocatalytic degradation of MB dye using direct sunlight irradiation. At optimum parameters, photocatalytic degradation of MB dye efficiency reached up to 66%, 96.5%, and 99.0%, respectively. Furthermore, kinetics of the photodegradation reaction based on rGO, ZnO, and rGO@ZnO nanocatalysts follow pseudo-first-order with a rate constant of 2.16 × 10-3 min-1, 4.97 × 10-3 min-1, and 5.03 × 10-3 min-1, respectively. Lastly, this study promotes a low catalyst load (20 mg) for the efficient photodegradation of MB dye.
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Affiliation(s)
- Asfaw Negash
- Department of Chemistry, Debre Berhan University, P.O. Box 445, Debre Berhan, Ethiopia.
| | - Said Mohammed
- Department of Chemistry, Debre Berhan University, P.O. Box 445, Debre Berhan, Ethiopia
| | | | - Abera D Ambaye
- Institute for Nanotechnology and Water Sustainability, University of South Africa, Florida Science Campus, Johannesburg, 1710, South Africa
- Materials Science and Engineering Research, Bio and Emerging Technology Institute, P.O. Box 5954, Addis Ababa, Ethiopia
| | - Minbale Gashu
- Department of Chemistry, Debre Berhan University, P.O. Box 445, Debre Berhan, Ethiopia.
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Nkwoada AU, Onyedika G, Oguzie E, Ogwuegbu M. Development of PSA@PS-TiO 2 nanocomposite photocatalyst: structure, mechanism, and application using response surface designs and molecular modeling. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2023; 87:2701-2726. [PMID: 37318919 PMCID: wst_2023_148 DOI: 10.2166/wst.2023.148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Using periwinkle shell ash (PSA) and polystyrene (PS), a new-fangled PSA@PS-TiO2 photocatalyst was fabricated. The morphological images of all the samples studied using a high-resolution transmission electron microscope (HR-TEM) showed a size distribution of 50-200 nm for all samples. The SEM-EDX showed that the membrane substrate of PS was well dispersed, confirming the presence of anatase/rutile phases of TiO2, and Ti and O2 were the major composites. Given the very rough surface morphology (atomic force microscopy (AFM)) due to PSA, the main crystal phases (XRD) of TiO2 (rutile and anatase), low bandgap (UVDRS), and beneficial functional groups (FTIR-ATR), the 2.5 wt.% of PSA@PS-TiO2 exhibited better photocatalytic efficiency for methyl orange degradation. The photocatalyst, pH, and initial concentration were investigated and the PSA@PS-TiO2 was reused for five cycles with the same efficiency. Regression modeling predicted 98% efficiency and computational modeling showed a nucleophilic initial attack initiated by a nitro group. Therefore, PSA@PS-TiO2 nanocomposite is an industrially promising photocatalyst for treating azo dyes, particularly, methyl orange from an aqueous solution.
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Affiliation(s)
- Amarachi Udoka Nkwoada
- Department of Chemistry, School of Physical Sciences, Federal University of Technology Owerri, P.M.B. 1526 Owerri, Nigeria E-mail:
| | - Gerald Onyedika
- Department of Chemistry, School of Physical Sciences, Federal University of Technology Owerri, P.M.B. 1526 Owerri, Nigeria E-mail:
| | - Emeka Oguzie
- Department of Chemistry, School of Physical Sciences, Federal University of Technology Owerri, P.M.B. 1526 Owerri, Nigeria E-mail: ; Africa Centre of Excellence in Future Energies and Electrochemical Systems (ACE-FUELS), Federal University of Technology Owerri, P.M.B. 1526 Owerri, Imo State, Nigeria
| | - Martin Ogwuegbu
- Department of Chemistry, School of Physical Sciences, Federal University of Technology Owerri, P.M.B. 1526 Owerri, Nigeria E-mail:
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Binazadeh M, Rasouli J, Sabbaghi S, Mousavi SM, Hashemi SA, Lai CW. An Overview of Photocatalytic Membrane Degradation Development. MATERIALS (BASEL, SWITZERLAND) 2023; 16:ma16093526. [PMID: 37176408 PMCID: PMC10180107 DOI: 10.3390/ma16093526] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 03/09/2023] [Accepted: 03/27/2023] [Indexed: 05/15/2023]
Abstract
Environmental pollution has become a worldwide issue. Rapid industrial and agricultural practices have increased organic contaminants in water supplies. Hence, many strategies have been developed to address this concern. In order to supply clean water for various applications, high-performance treatment technology is required to effectively remove organic and inorganic contaminants. Utilizing photocatalytic membrane reactors (PMRs) has shown promise as a viable alternative process in the water and wastewater industry due to its efficiency, low cost, simplicity, and low environmental impact. PMRs are commonly categorized into two main categories: those with the photocatalyst suspended in solution and those with the photocatalyst immobilized in/on a membrane. Herein, the working and fouling mechanisms in PMRs membranes are investigated; the interplay of fouling and photocatalytic activity and the development of fouling prevention strategies are elucidated; and the significance of photocatalysis in membrane fouling mechanisms such as pore plugging and cake layering is thoroughly explored.
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Affiliation(s)
- Mojtaba Binazadeh
- Department of Chemical Engineering, School of Chemical and Petroleum Engineering, Shiraz University, Shiraz 71557-13876, Iran
| | - Jamal Rasouli
- Department of Chemical Engineering, School of Chemical and Petroleum Engineering, Shiraz University, Shiraz 71557-13876, Iran
| | - Samad Sabbaghi
- Department of Nano-Chemical Engineering, Faculty of Advanced Technologies, Shiraz University, Shiraz 71557-13876, Iran
| | - Seyyed Mojtaba Mousavi
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei City 106335, Taiwan
| | - Seyyed Alireza Hashemi
- Nanomaterials and Polymer Nanocomposites Laboratory, School of Engineering, University of British Columbia, Kelowna, BC V1V 1V7, Canada
| | - Chin Wei Lai
- Nanotechnology & Catalysis Research Centre, University Malaya, Kuala Lumpur 50603, Malaysia
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Arumugam M, Koutavarapu R, Seralathan KK, Praserthdam S, Praserthdam P. Noble metals (Pd, Ag, Pt, and Au) doped bismuth oxybromide photocatalysts for improved visible light-driven catalytic activity for the degradation of phenol. CHEMOSPHERE 2023; 324:138368. [PMID: 36905999 DOI: 10.1016/j.chemosphere.2023.138368] [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: 11/27/2022] [Revised: 02/13/2023] [Accepted: 03/08/2023] [Indexed: 06/18/2023]
Abstract
The doping of noble metals onto the semiconductor metal oxides has a great impact on the intrinsic properties of the materials. This present work reports the synthesis of noble metals doped BiOBr microsphere by a solvothermal method. The various characteristic findings reveal the effective incorporation of Pd, Ag, Pt, and Au onto the BiOBr and the performance of synthesized samples was test for the degradation of phenol over visible light. The Pd-doped BiOBr material showed enhanced phenol degradation efficacy, which is ∼4-fold greater than pure BiOBr. This improved activity was on reason of good photon absorption, lower recombination rate, and higher surface area facilitated by surface plasmon resonance. Moreover, Pd-doped BiOBr sample displayed good reusability and stability after 3 cycles of run. A plausible charge transfer mechanism for phenol degradation is disclosed in detail over Pd-doped BiOBr sample. Our findings disclose that the incorporation of noble metal as the electron trap is a feasible approach to enhance visible light activity of BiOBr photocatalyst used in phenol degradation. This work represents new vision interested in the outline and development of noble metal doped semiconductor metal oxides as a visible light material for the elimination of colorless toxins from untreated wastewater.
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Affiliation(s)
- Malathi Arumugam
- Center of Excellence on Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Ravindranadh Koutavarapu
- Department of Robotics Engineering, College of Mechanical and IT Engineering, Yeungnam University, Gyeongsan, 38541, South Korea
| | - Kamala-Kannan Seralathan
- Division of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, Jeonbuk, 54596, South Korea
| | - Supareak Praserthdam
- High-Performance Computing Unit (CECC-HCU), Center of Excellence on Catalysis and Catalytic Reaction Engineering (CECC), Chulalongkorn University, Bangkok, 10330, Thailand
| | - Piyasan Praserthdam
- Center of Excellence on Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand.
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Ramzan M, Javed M, Iqbal S, Alhujaily A, Mahmood Q, Aroosh K, Bahadur A, Qayyum MA, Awwad NS, Ibrahium HA, Al-Anazy MM, Elkaeed EB. Designing Highly Active S-g-C3N4/Te@NiS Ternary Nanocomposites for Antimicrobial Performance, Degradation of Organic Pollutants, and Their Kinetic Study. INORGANICS 2023. [DOI: 10.3390/inorganics11040156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023] Open
Abstract
The current research is about the synthesis of pure nickel sulfide, a series of Te (0, 0.5, 1, 1.5, 2, and 3 wt.%)-doped NiS (Te@NiS) nanoparticles (NPs), and a series of S-g-C3N4 (10, 30, 50, 70, and 80 wt.%)/Te@NiS nanocomposites (NCs), fabricated through a hydrothermal route. XRD and FTIR spectroscopic techniques demonstrated the successful synthesis of NPs and NCs. SEM-EDX images confirmed the flakelike structure and elemental constituents of the fabricated materials. Tauc plots were drawn, to calculate the band gaps of the synthesized samples. Te doping resulted in a significant reduction in the band gap of the NiS NPs. The photocatalytic efficiency of the NPs and NCs was investigated against MB, under sunlight. The results obtained for the photocatalytic activity, showed that 1%Te@NiS nanoparticles have an excellent dye degradation capacity in sunlight. This was made even better by making a series of SGCN/1% Te@NiS nanocomposites with different amounts of S-g-C3N4. When compared to NiS, Te@NiS, SGCN, and 70%SGCN/1%Te@NiS, the 70%SGCN/1%Te@NiS NCs have excellent antifungal ability. The higher impact of SGCN/Te@NiS, may be due to its enhanced ability to disperse and interact with the membranes and intracellular proteins of fungi. The 70%SGCN/1%Te@NiS NCs showed excellent antibacterial and photocatalytic efficiency. Thus, the 70%SGCN/1%Te@NiS NCs might prove fruitful in antibacterial and photocatalytic applications.
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Affiliation(s)
- Maryam Ramzan
- Department of Chemistry, School of Science, University of Management and Technology, Lahore 54770, Pakistan
| | - Mohsin Javed
- Department of Chemistry, School of Science, University of Management and Technology, Lahore 54770, Pakistan
| | - Shahid Iqbal
- Department of Chemistry, School of Natural Sciences (SNS), National University of Science and Technology (NUST), H-12, Islamabad 46000, Pakistan
| | - Ahmad Alhujaily
- Biology Department, College of Science, Taibah University, P.O. Box 344, Al Madinah Al Munawarah 41477, Saudi Arabia
| | - Qaiser Mahmood
- Chemistry and Chemical Engineering Guangdong Laboratory, Shantou 515031, China
| | - Komal Aroosh
- Department of Chemistry, School of Science, University of Management and Technology, Lahore 54770, Pakistan
| | - Ali Bahadur
- Department of Chemistry, College of Science and Technology, Wenzhou-Kean University, Wenzhou 325060, China
| | - Muhammad Abdul Qayyum
- Department of Chemistry, Division of Science & Technology, University of Education, Lahore 54770, Pakistan
| | - Nasser S. Awwad
- Chemistry Department, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
| | - Hala A. Ibrahium
- Biology Department, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
| | - Murefah Mana Al-Anazy
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Eslam B. Elkaeed
- Department of Pharmaceutical Sciences, College of Pharmacy, AlMaarefa University, P.O. Box 71666, Riyadh 13713, Saudi Arabia
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Nazir A, Huo P, Wang H, Weiqiang Z, Wan Y. A review on plasmonic-based heterojunction photocatalysts for degradation of organic pollutants in wastewater. JOURNAL OF MATERIALS SCIENCE 2023; 58:6474-6515. [PMID: 37065680 PMCID: PMC10039801 DOI: 10.1007/s10853-023-08391-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Accepted: 03/12/2023] [Indexed: 06/19/2023]
Abstract
UNLABELLED Organic pollutants in wastewater are the biggest problem facing the world today due to population growth, rapid increase in industrialization, urbanization, and technological advancement. There have been numerous attempts to use conventional wastewater treatment techniques to address the issue of worldwide water contamination. However, conventional wastewater treatment has a number of shortcomings, including high operating costs, low efficiency, difficult preparation, fast recombination of charge carriers, generation of secondary waste, and limited light absorption. Therefore, plasmonic-based heterojunction photocatalysts have attracted much attention as a promising method to reduce organic pollutant problems in water due to their excellent efficiency, low operating cost, ease of fabrication, and environmental friendliness. In addition, plasmonic-based heterojunction photocatalysts contain a local surface plasmon resonance that enhances the performance of photocatalysts by improving light absorption and separation of photoexcited charge carriers. This review summarizes the major plasmonic effects in photocatalysts, including hot electron, local field effect, and photothermal effect, and explains the plasmonic-based heterojunction photocatalysts with five junction systems for the degradation of pollutants. Recent work on the development of plasmonic-based heterojunction photocatalysts for the degradation of various organic pollutants in wastewater is also discussed. Lastly, the conclusions and challenges are briefly described and the direction of future development of heterojunction photocatalysts with plasmonic materials is explored. This review could serve as a guide for the understanding, investigation, and construction of plasmonic-based heterojunction photocatalysts for various organic pollutants degradation. GRAPHICAL ABSTRACT Herein, the plasmonic effects in photocatalysts, such as hot electrons, local field effect, and photothermal effect, as well as the plasmonic-based heterojunction photocatalysts with five junction systems for the degradation of pollutants are explained. Recent work on plasmonic-based heterojunction photocatalysts for the degradation of various organic pollutants in wastewater such as dyes, pesticides, phenols, and antibiotics is discussed. Challenges and future developments are also described.
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Affiliation(s)
- Ahsan Nazir
- Institute of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013 China
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang, 212013 China
| | - Pengwei Huo
- Institute of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013 China
| | - Huijie Wang
- Institute of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013 China
| | - Zhou Weiqiang
- Institute of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013 China
| | - Yang Wan
- Institute of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013 China
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Vinothkumar K, Chandra L, Mohan S, Balakrishna RG. Nature-Inspired Photoactive Metal–Organic Framework Nanofiber Filters for Oil–Water Separation: Conserving Successive Flux, Rejection, and Antifouling. Ind Eng Chem Res 2023. [DOI: 10.1021/acs.iecr.2c03331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
| | - Lavanya Chandra
- Centre for Nano and Material Sciences, Jain University, Bangalore562112, Karnataka, India
| | - Sakar Mohan
- Centre for Nano and Material Sciences, Jain University, Bangalore562112, Karnataka, India
| | - R. Geetha Balakrishna
- Centre for Nano and Material Sciences, Jain University, Bangalore562112, Karnataka, India
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Li R, Landfester K, Ferguson CTJ. Temperature- and pH-Responsive Polymeric Photocatalysts for Enhanced Control and Recovery. Angew Chem Int Ed Engl 2022; 61:e202211132. [PMID: 36112056 PMCID: PMC10099588 DOI: 10.1002/anie.202211132] [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: 07/28/2022] [Indexed: 12/14/2022]
Abstract
The emergence of heterogeneous photocatalysis has facilitated redox reactions with high efficiency, without compromising the recyclability of the photocatalyst. Recently, stimuli-responsive heterogeneous photocatalytic materials have emerged as a powerful synthetic tool, with simple and rapid recovery, as well as an enhanced dynamic control over reactions. Stimuli-responsive polymers are often inexpensive and easy to produce. They can be switched from an active "on" state to an inert "off" state in response to external stimuli, allowing the production of photocatalyst with adaptability, recyclability, and orthogonal control on different chemical reactions. Despite this versatility, the application of artificial smart material in the field of heterogeneous photocatalysis has not yet been maximized. In this Minireview, we will examine the recent developments of this emerging class of stimuli-responsive heterogeneous photocatalytic systems. We will discuss the synthesis route of appending photoactive components into different triggerable systems and, in particular, the controlled activation and recovery of the materials.
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Affiliation(s)
- Rong Li
- Max Planck Institute for Polymer Research, Mainz, Germany
| | | | - Calum T J Ferguson
- Department School of Chemistry, University of Birmingham, Birmingham, UK.,Max Planck Institute for Polymer Research, Mainz, Germany
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Mondal T, Mondal S, Ghosh SK, Pal P, Soren T, Pandey S, Maiti TK. Phthalates - A family of plasticizers, their health risks, phytotoxic effects, and microbial bioaugmentation approaches. ENVIRONMENTAL RESEARCH 2022; 214:114059. [PMID: 35961545 DOI: 10.1016/j.envres.2022.114059] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 07/18/2022] [Accepted: 08/03/2022] [Indexed: 06/15/2023]
Abstract
Phthalates are a family of reprotoxicant compounds, predominantly used as a plasticizer to improve the flexibility and longevity of consumable plastic goods. After their use these plastic products find their way to the waste disposal sites where they leach out the hazardous phthalates present within them, into the surrounding environment, contaminating soil, groundwater resources, and the nearby water bodies. Subsequently, phthalates move into the living system through the food chain and exhibit the well-known phenomenon of biological magnification. Phthalates as a primary pollutant have been classified as 1B reprotoxicants and teratogens by different government authorities and they have thus imposed restrictions on their use. Nevertheless, the release of these compounds in the environment is unabated. Bioremediation has been suggested as one of the ways of mitigating this menace, but studies regarding the field applications of phthalate utilizing microbes for this purpose are limited. Through this review, we endeavor to make a deeper understanding of the cause and concern of the problem and to find out a possible solution to it. The review critically emphasizes the various aspects of phthalates toxicity, including their chemical nature, human health risks, phytoaccumulation and entry into the food chain, microbial role in phthalate degradation processes, and future challenges.
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Affiliation(s)
- Tanushree Mondal
- Microbiology Laboratory, Department of Botany, The University of Burdwan, Golapbag, Purba Bardhaman, P. O. -Rajbati, 713104, West Bengal, India.
| | - Sayanta Mondal
- Microbiology Laboratory, Department of Botany, The University of Burdwan, Golapbag, Purba Bardhaman, P. O. -Rajbati, 713104, West Bengal, India.
| | - Sudip Kumar Ghosh
- Microbiology Laboratory, Department of Botany, The University of Burdwan, Golapbag, Purba Bardhaman, P. O. -Rajbati, 713104, West Bengal, India.
| | - Priyanka Pal
- Microbiology Laboratory, Department of Botany, The University of Burdwan, Golapbag, Purba Bardhaman, P. O. -Rajbati, 713104, West Bengal, India.
| | - Tithi Soren
- Microbiology Laboratory, Department of Botany, The University of Burdwan, Golapbag, Purba Bardhaman, P. O. -Rajbati, 713104, West Bengal, India.
| | - Sanjeev Pandey
- Department of Botany, Banwarilal Bhalotia College, Asansol, 713303, West Bengal, India.
| | - Tushar Kanti Maiti
- Microbiology Laboratory, Department of Botany, The University of Burdwan, Golapbag, Purba Bardhaman, P. O. -Rajbati, 713104, West Bengal, India.
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11
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Arumugam M, Seralathan KK, Praserthdam S, Tahir M, Praserthdam P. Synthesis of novel graphene aerogel encapsulated bismuth oxyiodide composite towards effective removal of methyl orange azo-dye under visible light. CHEMOSPHERE 2022; 303:135121. [PMID: 35623428 DOI: 10.1016/j.chemosphere.2022.135121] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Revised: 05/12/2022] [Accepted: 05/23/2022] [Indexed: 06/15/2023]
Abstract
Development of novel and eco-friendly composite photocatalysts for the efficient removal of contaminants from wastewater is the need of the hour. In this study, visible light responsive novel graphene aerogel/bismuth oxyiodide (GA/BiOI) composite was synthesized via low-temperature solvothermal method. The synthesized GA/BiOI composite was tested for methyl orange (MO) azo-dye degradation under visible light. The graphene aerogel nanosheets were wrapped onto the surface of the each individual BiOI microsphere, which encourages the interconnection charge transfer process. The light absorption properties of GA/BiOI composite were increased with the addition of graphene aerogel. The optimal 5%-GA/BiOI composite displayed higher MO removal efficiency, which is ∼2 fold more than the bare BiOI photocatalyst. This enhanced photocatalytic activity was on account of lower recombination rate of charge carriers, improved light absorption, and the high surface area. In addition, the 5%-GA/BiOI composite showed good stability until 3 cycles without deactivation. The plausible MO degradation mechanism was also proposed over GA/BiOI under visible light. This work provides a new perspective on the design and synthesis of graphene aerogel-based composite for environmental applications.
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Affiliation(s)
- Malathi Arumugam
- Center of Excellence on Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Kamala-Kannan Seralathan
- Division of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, Jeonbuk, 54596, South Korea
| | - Supareak Praserthdam
- High-Performance Computing Unit (CECC-HCU), Center of Excellence on Catalysis and Catalytic Reaction Engineering (CECC), Chulalongkorn University, Bangkok, 10330, Thailand
| | - Muhammad Tahir
- Chemical and Petroleum Engineering Department, UAE University, P.O. Box 15551, Al Ain, United Arab Emirates
| | - Piyasan Praserthdam
- Center of Excellence on Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand.
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Warshagha MA, Muneer M. Direct Z-Scheme AgBr/β-MnO 2 Photocatalysts for Highly Efficient Photocatalytic and Anticancer Activity. ACS OMEGA 2022; 7:30171-30183. [PMID: 36061726 PMCID: PMC9434753 DOI: 10.1021/acsomega.2c03260] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 08/05/2022] [Indexed: 05/28/2023]
Abstract
The preparation of visible light-responsive efficient photocatalysts for removing organic contaminants from water and killing cancer cells has gotten a lot of attention due to the growing global concern. In this study, we have successfully fabricated an efficient AgBr/β-MnO2 nanocomposite via a facile deposition and precipitation method at room temperature. Techniques such as XRD, SEM-EDS, TEM, DRS, PL, EIS, ESR, and FTIR were used to determine the crystalline, structural, morphological, optical, and other properties. The SEM and TEM analyses reveal that AgBr NPs are decorated on the surface of β-MnO2, which possesses rods with a sphere-like structure for AgBr/β-MnO2. The EDX analysis confirms the existence of Mn, O, Ag, and Br elements in the nanocomposites without an extra peak, indicating that the synthesized samples are highly pure. The high photocatalytic performance of AgBr/β-MnO2 could be attributed to the formation of Ag NPs and the construction of the Z-scheme heterojunction between AgBr and β-MnO2. This may enhance fast light absorption and efficient photogenerated (e-/h+) pairs, as indicated by EIS and photoluminescence measurements, which in turn achieved high activity for the decomposition of MB (97%, in 12 min), RhB (98.9%, in 9 min), and paracetamol (80%, in 180 min), respectively. The kinetic model study proposed that the first-order model showed a better fit than the zero- and second-order for the photocatalytic decolorization of RhB dye. XRD analysis of 0.2 AgBr/β-MnO2 before and after recycling confirms the high stability of the catalyst. HPLC results showed that no detectable by-products are produced through the decomposition of paracetamol. Interestingly, 0.2 AgBr/β-MnO2 nanocomposites showed visible light-induced anticancer activity against A549 cancer cell lines. The mechanistic degradation pathway has been proposed using the involvement of active species like superoxide radicals (-•O2) and photoinduced holes (h+). The proposed work focuses on synthesizing effective photocatalysts in a less hazardous environment with superior biological activity.
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Molten salt flux synthesis of cobalt doped refractory double perovskite Sr 2CoxGa1-xNbO6: A spectroscopic investigation for multifunctional materials. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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14
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El-Tawargy AS. Spatio-temporal photolysis rate profiles of UV 254 irradiated toluene. Sci Rep 2022; 12:12744. [PMID: 35882928 PMCID: PMC9325976 DOI: 10.1038/s41598-022-16941-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Accepted: 07/18/2022] [Indexed: 12/25/2022] Open
Abstract
The volatile organic compound (VOC) toluene is irradiated with a 254 nm UV source. The studied sample (1 mL) of toluene is equipped in a sealed quartz cuvette and inserted in one of the Michelson interferometer's arms. During a UV254 irradiation of 1 h, the variation in the toluene's refractive index profiles are monitored as a movement of Michelson interference fringes. These interferograms are recorded and digitally analyzed to produce their phase map distributions and, hence, reconstructing the refractive index profiles which are expressing the toluene's photolysis behavior. With increasing the UV254 irradiation time, the toluene's refractive index profiles exhibit both temporal and spatial decrease due to the production of benzyl radicals and the consequent oxidation of these radicals. The spatio-temporal refractive index and photolysis rate profiles of toluene are reconstructed and discussed.
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Affiliation(s)
- Ahmed S El-Tawargy
- Optics Research Laboratory, Physics Department, Faculty of Science, Damietta University, New Damietta City, 34517, Egypt.
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15
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Current Developments in the Effective Removal of Environmental Pollutants through Photocatalytic Degradation Using Nanomaterials. Catalysts 2022. [DOI: 10.3390/catal12050544] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Photocatalysis plays a prominent role in the protection of the environment from recalcitrant pollutants by reducing hazardous wastes. Among the different methods of choice, photocatalysis mediated through nanomaterials is the most widely used and economical method for removing pollutants from wastewater. Recently, worldwide researchers focused their research on eco-friendly and sustainable environmental aspects. Wastewater contamination is one of the major threats coming from industrial processes, compared to other environmental issues. Much research is concerned with the advanced development of technology for treating wastewater discharged from various industries. Water treatment using photocatalysis is prominent because of its degradation capacity to convert pollutants into non-toxic biodegradable products. Photocatalysts are cheap, and are now emerging slowly in the research field. This review paper elaborates in detail on the metal oxides used as a nano photocatalysts in the various type of pollutant degradation. The progress of research into metal oxide nanoparticles, and their application as photocatalysts in organic pollutant degradation, were highlighted. As a final consideration, the challenges and future perspectives of photocatalysts were analyzed. The application of nano-based materials can be a new horizon in the use of photocatalysts in the near future for organic pollutant degradation.
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16
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Sailaja Kumari P, Vijaya Charan G, Ravi Kumar D. Synthesis, structural, photocatalytic and anti-cancer activity of Zn doped Ni nano chromites by citrate gel auto combustion method. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109393] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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17
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Zheng ALT, Ohno T, Andou Y. Recent Progress in Photocatalytic Efficiency of Hybrid Three-Dimensional (3D) Graphene Architectures for Pollution Remediation. Top Catal 2022. [DOI: 10.1007/s11244-022-01610-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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18
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Prabhavathy S, Dakshanamoorthy A. Visible light-induced Silver and Lanthanum co-doped BiVO4 nanoparticles for photocatalytic dye degradation of organic pollutants. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109483] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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19
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Rabani I, Bathula C, Zafar R, Shoaib Tahir M, Park YJ, Kim HS, Naushad M, Seo YS. Visible light-driven photocatalytic rapid degradation of organic contaminants engaging manganese dioxide-incorporated iron oxide three dimensional nanoflowers. J Colloid Interface Sci 2022; 608:2347-2357. [PMID: 34763888 DOI: 10.1016/j.jcis.2021.10.149] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 10/14/2021] [Accepted: 10/25/2021] [Indexed: 12/30/2022]
Abstract
Water pollution via hazardous organic pollutants poses a high threat to the environment and globally imperils aquatic life and human health. Therefore, the elimination of toxic organic waste from water sources is vital to ensure a healthy green environment. In the current work, we synthesized α-MnO2-Fe3O4 3D-flower like structure using a two-step hydrothermal method and explored the combination in a visible-light-assisted photocatalytic degrdation of dyes. The attained high specific surface area of 82 m2/g with mesoporous nature of α-MnO2 and Fe3O4 together can generate more active sites after exposure to visible light, leading to remarkable photodegradation performance. Significantly, twofold higher dye (methylene blue, MB (94.8%/120 min; crystal violet, CV (93.7%/120 min)) and drug (LVO 91%/90 min) photodegradations were observed with α-MnO2-Fe3O4 as catalyst than pure α-MnO2 and Fe3O4 at pH 6, respectively. This is attributed to the higher surface area and synergistic effect between Mn and Fe. More than 85% stability was observed with optimized catalysts employing MB and CV dyes, demonstrating the excellent reusability of the α-MnO2-Fe3O4. The underlying mechanism indicates that the formation of reactive oxygen species predominantly plays a role in the photodegradation of dyes under visible light. Consequently, these new insights will shed light on the practical applications of the α-MnO2-Fe3O4 3D-flower-like spherical structure for eco-friendly remediation via wastewater treatment.
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Affiliation(s)
- Iqra Rabani
- Interface Lab, Department of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 05006, Republic of Korea
| | - Chinna Bathula
- Division of Electronics and Electrical Engineering, Dongguk University-Seoul, Seoul 04620, Republic of Korea
| | - Rabia Zafar
- Department of Environment & Energy, Sejong University, Seoul 05006, Republic of Korea
| | - Muhammad Shoaib Tahir
- Interface Lab, Department of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 05006, Republic of Korea
| | - Ye-Jee Park
- Interface Lab, Department of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 05006, Republic of Korea
| | - Hyun-Seok Kim
- Division of Electronics and Electrical Engineering, Dongguk University-Seoul, Seoul 04620, Republic of Korea
| | - Mu Naushad
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Young-Soo Seo
- Interface Lab, Department of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 05006, Republic of Korea.
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20
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Rapid and green combustion synthesis of nanocomposites based on Zn–Co–O nanostructures as photocatalysts for enhanced degradation of acid brown 14 contaminant under sunlight. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.119841] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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21
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Pattappan D, Kavya KV, Vargheese S, Kumar RTR, Haldorai Y. Graphitic carbon nitride/NH 2-MIL-101(Fe) composite for environmental remediation: Visible-light-assisted photocatalytic degradation of acetaminophen and reduction of hexavalent chromium. CHEMOSPHERE 2022; 286:131875. [PMID: 34411933 DOI: 10.1016/j.chemosphere.2021.131875] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 07/29/2021] [Accepted: 08/10/2021] [Indexed: 05/24/2023]
Abstract
Herein, an efficient photocatalyst composed of graphitic carbon nitrate and iron-based metal-organic framework (g-C3N4/NH2-MIL-101(Fe)) composite was fabricated by a solvothermal method for the degradation of acetaminophen (AAP) and reduction of Cr(VI) under sunlight illumination. The composite was confirmed by X-ray diffraction. UV-visible spectra showed that the bare g-C3N4, pure Fe-MOF, and composite harvest solar light effectively. The photocatalytic experiment indicated that the composite exhibited superior reduction efficiency of Cr(VI) (66%) compared to the bare g-C3N4 (35%) and pure Fe-MOF (51%) at pH 7. As the pH decreases from 9 to 2, the reduction efficiency increased. The highest Cr(VI) reduction (91%) was observed at pH 2. On the other hand, the catalyst degraded 94% of AAP at pH 7 compared to the bare g-C3N4 (42%) and pure Fe-MOF (60%) in the presence of hydrogen peroxide. A radical scavenger experiment endorsed that the generation of superoxide radicals was the main reason for the AAP degradation. The cyclic stability test indicated that there was no substantial decrease in the degradation efficiency of AAP after ten repeated cycles. The kinetic studies showed that the photodegradation of AAP and reduction Cr(VI) was well-fitted to the first-order kinetics. Gas chromatography-mass spectrometry analysis showed that hydroquinone, aliphatic carboxylic acids, monohydroxy, and dihydroxy paracetamol were the main products formed as a result of such degradation process. Therefore, the iron-based MOF and their composites can be used as effective photocatalysts for pollutants degradation.
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Affiliation(s)
- Dhanaprabhu Pattappan
- Department of Nanoscience and Technology, Bharathiar University, Coimbatore, 641046. Tamilnadu, India
| | - K V Kavya
- Department of Nanoscience and Technology, Bharathiar University, Coimbatore, 641046. Tamilnadu, India
| | - Stella Vargheese
- Department of Nanoscience and Technology, Bharathiar University, Coimbatore, 641046. Tamilnadu, India
| | - R T Rajendra Kumar
- Department of Nanoscience and Technology, Bharathiar University, Coimbatore, 641046. Tamilnadu, India
| | - Yuvaraj Haldorai
- Department of Nanoscience and Technology, Bharathiar University, Coimbatore, 641046. Tamilnadu, India.
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22
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Ansari MO, Kumar R, Abdel-wahab M, Abu Taleb M, Barakat M. Direct current deposited NiO on polyaniline@MoS2 flexible thin film for highly efficient solar light mineralization of 2-chlorophenol: A mechanistic analysis. J Taiwan Inst Chem Eng 2021. [DOI: 10.1016/j.jtice.2021.09.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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23
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Yılmaz S, Kuyumcu ÖK, Bayazit ŞS, Ayaz RMZ, Akyüz D, Koca A. Enhanced photoelectrochemical activity of magnetically modified TiO2 prepared by a simple ex-situ route. J Solid State Electrochem 2021. [DOI: 10.1007/s10008-021-05083-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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24
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El-Naggar A, Ahmed N, Mosa A, Niazi NK, Yousaf B, Sharma A, Sarkar B, Cai Y, Chang SX. Nickel in soil and water: Sources, biogeochemistry, and remediation using biochar. JOURNAL OF HAZARDOUS MATERIALS 2021; 419:126421. [PMID: 34171670 DOI: 10.1016/j.jhazmat.2021.126421] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 05/30/2021] [Accepted: 06/14/2021] [Indexed: 05/11/2023]
Abstract
Nickel (Ni) is a potentially toxic element that contaminates soil and water, threatens food and water security, and hinders sustainable development globally. Biochar has emerged as a promising novel material for remediating Ni-contaminated environments. However, the potential for pristine and functionalized biochars to immobilize/adsorb Ni in soil and water, and the mechanisms involved have not been systematically reviewed. Here, we critically review the different dimensions of Ni contamination and remediation in soil and water, including its occurrence and biogeochemical behavior under different environmental conditions and ecotoxicological hazards, and its remediation using biochar. Biochar is effective in immobilizing Ni in soil and water via ion exchange, electrostatic attraction, surface complexation, (co)precipitation, physical adsorption, and reduction due to the biogeochemistry of Ni and the interaction of Ni with surface functional groups and organic/inorganic compounds contained in biochar. The efficiency for Ni removal is consistently greater with functionalized than pristine biochars. Physical (e.g., ball milling) and chemical (e.g., alkali/acidic treatment) activation achieve higher surface area, porosity, and active surface groups on biochar that enhance Ni immobilization. This review highlights possible risks and challenges of biochar application in Ni remediation, suggests future research directions, and discusses implications for environmental agencies and decision-makers.
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Affiliation(s)
- Ali El-Naggar
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Lin'an 311300, China; Department of Soil Sciences, Faculty of Agriculture, Ain Shams University, Cairo 11241, Egypt
| | - Naveed Ahmed
- US Pakistan Center for Advanced Studies in Water, Mehran University of Engineering and Technology, Jamshoro, 76062 Sindh, Pakistan
| | - Ahmed Mosa
- Soils Department, Faculty of Agriculture, Mansoura University, Mansoura 35516, Egypt
| | - Nabeel Khan Niazi
- Institute of Soil and Environmental Sciences, University of Agriculture Faisalabad, Faisalabad 38040, Pakistan; School of Civil Engineering and Surveying, University of Southern Queensland, Toowoomba, 4350 Queensland, Australia
| | - Balal Yousaf
- Department of Environmental Engineering, Middle East Technical University, Ankara 06800, Turkey
| | - Anket Sharma
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Lin'an 311300, China; Department of Plant Science and Landscape Architecture, University of Maryland, College Park, USA
| | - Binoy Sarkar
- Lancaster Environment Centre, Lancaster University, Lancaster LA1 4YQ, UK
| | - Yanjiang Cai
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Lin'an 311300, China
| | - Scott X Chang
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Lin'an 311300, China; Department of Renewable Resources, University of Alberta, Edmonton, Alberta, T6G 2H1, Canada.
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25
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Karthik PE, Jothi VR, Pitchaimuthu S, Yi S, Anantharaj S. Alternating Current Techniques for a Better Understanding of Photoelectrocatalysts. ACS Catal 2021. [DOI: 10.1021/acscatal.1c03783] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Pitchiah E. Karthik
- Department of Chemical Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea
| | - Vasanth Rajendiran Jothi
- Department of Chemical Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea
| | - Sudhagar Pitchaimuthu
- Research Centre for Carbon Solutions, Institute of Mechanical, Processing, and Energy Engineering, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, United Kingdom
| | - SungChul Yi
- Department of Chemical Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea
- Department of Hydrogen and Fuel Cell Technology, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea
| | - Sengeni Anantharaj
- Department of Applied Chemistry, School of Advanced Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan
- Waseda Research Institute for Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan
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26
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Marfur NA, Jaafar NF. Insight into the influence of defect sites in mixed phase of mesoporous titania nanoparticles toward photocatalytic degradation of 2‐chlorophenol: Effect of light source. J CHIN CHEM SOC-TAIP 2021. [DOI: 10.1002/jccs.202100127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Nor Amira Marfur
- Inorganic Chemistry Section, School of Chemical Sciences Universiti Sains Malaysia Penang Malaysia
| | - Nur Farhana Jaafar
- Inorganic Chemistry Section, School of Chemical Sciences Universiti Sains Malaysia Penang Malaysia
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27
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Choy S, Bui HT, Van Lam D, Lee SM, Kim W, Hwang DS. Photocatalytic exoskeleton: Chitin nanofiber for retrievable and sustainable TiO 2 carriers for the decomposition of various pollutants. Carbohydr Polym 2021; 271:118413. [PMID: 34364555 DOI: 10.1016/j.carbpol.2021.118413] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Revised: 06/18/2021] [Accepted: 07/07/2021] [Indexed: 10/20/2022]
Abstract
Loading a photocatalytic TiO2 to organic carriers has been desired for volumetric TiO2 incorporation, facile retrieval, and sustainable utilization. Traditionally, suspended TiO2 nanoparticles or its thin film on two-dimensional substrate are popularly fabricated for pollutants decomposition without carriers; due to poor thermomechanical properties of the organic carriers. Herein, a combination of the chitin nanofiber carrier and atomic layer deposition proves relevance for formation of anatase TiO2 thin layer so that photocatalytic decomposition in three-dimensional surface. Moreover, chitin nanofiber is capable of holding the TiO2 nanoparticles for multiple cycles of photocatalysis. Those types of TiO2 show characteristic degradation performance for gaseous (acetaldehyde) and aqueous pollutants (4-chlorophenol and rhodamine B). After catalytic reaction, chitin/TiO2 is retrievable owing to carrier's robustness even in water without TiO2 aggregation and loss. This work suggests that chitin-based photocatalyst is applicable to numerous pollutants through chitin's relatively high chemical resistance and stably wedged TiO2 during photocatalytic reaction.
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Affiliation(s)
- Seunghwan Choy
- Division of Integrative Biosciences and Biotechnology, Pohang University of Science and Technology (POSTECH), 77 Chengam-ro, Nam-gu, Pohang 37673, Republic of Korea
| | - Hoang Tran Bui
- Department of Chemical and Biological Engineering College of Engineering, Sookmyung Women's University, Seoul, Republic of Korea
| | - Do Van Lam
- Department of Nanomechanics, Korea Institute of Machinery and Materials (KIMM), 156 Gajeongbuk-ro, Yuseong-gu, Daejeon 34103, Republic of Korea; Nano Mechatronics, Korea University of Science and Technology (UST), 217 Gajeongbuk-ro, Yuseong-gu, Daejeon 34113, Republic of Korea
| | - Seung-Mo Lee
- Department of Nanomechanics, Korea Institute of Machinery and Materials (KIMM), 156 Gajeongbuk-ro, Yuseong-gu, Daejeon 34103, Republic of Korea; Nano Mechatronics, Korea University of Science and Technology (UST), 217 Gajeongbuk-ro, Yuseong-gu, Daejeon 34113, Republic of Korea
| | - Wooyul Kim
- Department of Chemical and Biological Engineering College of Engineering, Sookmyung Women's University, Seoul, Republic of Korea.
| | - Dong Soo Hwang
- Division of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Chengam-ro, Nam-gu, Pohang 37673, Republic of Korea; Institute for Convergence Research and Education in Advanced Technology, Yonsei University International Campus I-CREATE, Incheon 21983, Republic of Korea.
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Arumugam M, Yu Y, Jung HJ, Yeon S, Lee H, Theerthagiri J, Lee SJ, Choi MY. Solvent-mediated synthesis of BiOI with a tunable surface structure for effective visible light active photocatalytic removal of Cr(VI) from wastewater. ENVIRONMENTAL RESEARCH 2021; 197:111080. [PMID: 33775677 DOI: 10.1016/j.envres.2021.111080] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 03/15/2021] [Accepted: 03/19/2021] [Indexed: 06/12/2023]
Abstract
The present study investigated the effect of various solvents on the tunable surface morphology and photocatalytic activity (PCA) of bismuth oxyiodide (BiOI), which could be used for the reduction of Cr(VI) under visible light irradiation (VLI). BiOI samples exhibiting different morphologies, i.e., two-dimensional square-like nanosheet and three-dimensional hierarchical flower-like morphology, were synthesized by a hydro/solvothermal process using different solvents, namely H2O, MeOH, EtOH, and ethylene glycol (EG). The crystal structure, surface morphology, surface area, light-absorption capability, and recombination rate of the photogenerated charge carriers were examined by X-ray diffraction, scanning electron microscopy, Brunauer-Emmett-Teller analysis, UV-vis diffuse reflectance spectroscopy, photoluminescence, and transient photocurrent analyses, respectively. The BiOI sample fabricated in EG showed excellent photocatalytic efficiency (~99%) for the reduction of Cr(VI) after 90 min under VLI. The enhanced PCA demonstrated that the high surface area and well-structured surface characteristics of flower-like 3D BiOI microspheres played important roles in the photoreduction process. Moreover, a plausible mechanism for the reduction of Cr(VI) over the EG-BiOI photocatalyst was proposed. The results of the PCA evaluation and recycle test revealed that 3D EG-BiOI microspheres could serve as promising materials for the efficient removal of Cr(VI) from wastewater. Additionally, EG-BiOI could be utilized in other environmental remediation processes.
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Affiliation(s)
- Malathi Arumugam
- Core-Facility Center for Photochemistry & Nanomaterials, Department of Chemistry, Research Institute of Natural Sciences, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Yiseul Yu
- Core-Facility Center for Photochemistry & Nanomaterials, Department of Chemistry, Research Institute of Natural Sciences, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Hyeon Jin Jung
- Nano Materials & Nano Technology Center, Electronic Convergence Division, Korea Institute of Ceramic Engineering & Technology, Jinju, 52851, Republic of Korea
| | - Sanghun Yeon
- Core-Facility Center for Photochemistry & Nanomaterials, Department of Chemistry, Research Institute of Natural Sciences, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Hyeyeon Lee
- Core-Facility Center for Photochemistry & Nanomaterials, Department of Chemistry, Research Institute of Natural Sciences, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Jayaraman Theerthagiri
- Core-Facility Center for Photochemistry & Nanomaterials, Department of Chemistry, Research Institute of Natural Sciences, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Seung Jun Lee
- Core-Facility Center for Photochemistry & Nanomaterials, Department of Chemistry, Research Institute of Natural Sciences, Gyeongsang National University, Jinju, 52828, Republic of Korea.
| | - Myong Yong Choi
- Core-Facility Center for Photochemistry & Nanomaterials, Department of Chemistry, Research Institute of Natural Sciences, Gyeongsang National University, Jinju, 52828, Republic of Korea.
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El-Monaem EMA, El-Latif MMA, Eltaweil AS, El-Subruiti GM. Cobalt Nanoparticles Supported on Reduced Amine-Functionalized Graphene Oxide for Catalytic Reduction of Nitroanilines and Organic Dyes. NANO 2021; 16:2150039. [DOI: 10.1142/s1793292021500399] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
In our study, a simple strategy to fabricate an efficient cobalt-based nanocatalyst is reported. The as-fabricated cobalt nanoparticles (Co NPs) that supported on reduced amine-functionalized graphene oxide (Co@RGO-NH[Formula: see text] have been fabricated through reduction of Co[Formula: see text] and GO-NH2 by sodium borohydride under mild conditions. The morphology, elemental analysis, chemical composition, surface area and magnetic property of the as-fabricated Co@RGO-NH2 nanocatalyst have been investigated using scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), Fourier transform infrared spectroscopy (FTIR), Brunauer–Emmett–Teller (BET) and vibrating sample magnetometer (VSM), respectively. Characterization showed that Co@RGO-NH2 nanocatalyst possesses a high surface area (232.05 m2/g) and good magnetic property. Obviously, the as-fabricated Co@RGO-NH2 nanocatalyst exhibited a fascinating catalytic activity towards the catalytic reduction of different substituted nitro anilines pollutants ([Formula: see text]-nitroaniline, [Formula: see text]-nitroaniline and [Formula: see text]-nitroaniline), as well as, the degradation of cationic methylene blue and anionic Congo red dyes. Furthermore, the reused Co@RGO-NH2 nanocatalyst has shown high catalytic activity for all the catalytic reactions even after the fifth cycle, asserting the high stability of the as-fabricated heterogeneous catalyst.
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Affiliation(s)
- Eman M. Abd El-Monaem
- Department of Chemistry, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Mona M. Abd El-Latif
- Fabrication Technology Department, Advanced Technology and New Materials Research Institute, SRTA-City, New Borg El-Arab City, Alexandria, Egypt
| | | | - Gehan M. El-Subruiti
- Department of Chemistry, Faculty of Science, Alexandria University, Alexandria, Egypt
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30
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Garg R, Gupta R, Bansal A. Degradation mechanism, reaction pathways and kinetics for the mineralization of Bisphenol A using hybrid ZnO/graphene oxide nano-catalysts. KOREAN J CHEM ENG 2021. [DOI: 10.1007/s11814-020-0718-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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31
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Arumugam M, Lee SJ, Begildayeva T, Naik SS, Yu Y, Lee H, Theerthagiri J, Choi MY. Enhanced photocatalytic activity at multidimensional interface of 1D-Bi 2S 3@2D-GO/3D-BiOI ternary nanocomposites for tetracycline degradation under visible-light. JOURNAL OF HAZARDOUS MATERIALS 2021; 404:123868. [PMID: 33038731 DOI: 10.1016/j.jhazmat.2020.123868] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 08/20/2020] [Accepted: 08/24/2020] [Indexed: 06/11/2023]
Abstract
Structural dimensionality and surface morphology are key properties that greatly affect the functionalities of materials. Herein, we report a synthesis of dimensionally coupled ternary nanocomposites from three-dimensional (3D) bismuth oxyiodide (BiOI), two-dimensional (2D) graphene oxide (GO), and one-dimensional (1D) bismuth sulfide (Bi2S3) nanomaterials for tetracycline degradation under visible-light irradiation. The 2%-Bi2S3@1%-GO/BiOI ternary nanocomposites show higher degradation efficiency than neat 3D-BiOI. The coupling of neat 1D-Bi2S3 with the 1%-GO/BiOI binary nanocomposite does not increase the specific surface area of the resulting 2%-Bi2S3@1%-GO/3D-BiOI ternary nanocomposite, but enhances notably its charge carrier separation and migration, according to the analysis of the higher photocurrent, smaller arc radius of the electrochemical impedance spectroscopy and lower photoluminescence intensity. The observed results suggest that the combination of dimensionally coupled composites provides a synergistic effect through an efficient charge transfer process. This work offers new insights into the design and construction of dimensionally coupled ternary nanocomposites for environmental remediation applications.
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Affiliation(s)
- Malathi Arumugam
- Department of Chemistry (BK21 FOUR) and Research Institute of Natural Science, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Seung Jun Lee
- Department of Chemistry (BK21 FOUR) and Research Institute of Natural Science, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Talshyn Begildayeva
- Department of Chemistry (BK21 FOUR) and Research Institute of Natural Science, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Shreyanka Shankar Naik
- Department of Chemistry (BK21 FOUR) and Research Institute of Natural Science, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Yiseul Yu
- Department of Chemistry (BK21 FOUR) and Research Institute of Natural Science, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Hyeyeon Lee
- Department of Chemistry (BK21 FOUR) and Research Institute of Natural Science, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Jayaraman Theerthagiri
- Department of Chemistry (BK21 FOUR) and Research Institute of Natural Science, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Myong Yong Choi
- Department of Chemistry (BK21 FOUR) and Research Institute of Natural Science, Gyeongsang National University, Jinju 52828, Republic of Korea.
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32
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Senthil RA, Wu Y, Liu X, Pan J. A facile synthesis of nano AgBr attached potato-like Ag 2MoO 4 composite as highly visible-light active photocatalyst for purification of industrial waste-water. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 269:116034. [PMID: 33310494 DOI: 10.1016/j.envpol.2020.116034] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 09/09/2020] [Accepted: 09/12/2020] [Indexed: 05/16/2023]
Abstract
In recent times, silver (Ag) based semiconductors have been gained a lot of attention as photocatalysts for industrial waste-water treatment owing to their strong visible-light absorbing capability and small bandgap energy. Therefore, herein, we have designed and utilized a one-pot hydrothermal approach to the synthesis of nano-sized AgBr covered potato-like Ag2MoO4 composite photocatalysts for the elimination of organic wastes from the aquatic environment. To achieve a high-performance photocatalyst, a sequence of AgBr/Ag2MoO4 composites were acquired with varying CTAB from 1 to 4 mmol. Furthermore, the photocatalytic activity of these photocatalysts was confirmed from decomposing of Rhodamine B (RhB) dye via visible-light elucidation. It can be noticed that AgBr/Ag2MoO4 composites exhibited significantly increased photocatalytic behaviour as compared with pure AgBr and Ag2MoO4. Surprisingly, the AgBr/Ag2MoO4 composite obtained from 2 mmol CTAB was eliminated the entire RhB dye with 25 min. Also, the recycling experiment indicates the AgBr/Ag2MoO4 composite has an excellent photo-stability. Accordingly, the as-acquired AgBr/Ag2MoO4 composite would be a suitable photocatalytic material for industrial waste-water purification.
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Affiliation(s)
- Raja Arumugam Senthil
- Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, PR China; State Key Laboratory of Chemical Resources Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yufeng Wu
- Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, PR China.
| | - Xiaomin Liu
- Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, PR China
| | - Junqing Pan
- State Key Laboratory of Chemical Resources Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
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Dubey M, Challagulla NV, Wadhwa S, Kumar R. Ultrasound assisted synthesis of magnetic Fe3O4/ɑ-MnO2 nanocomposite for photodegradation of organic dye. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.125720] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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34
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Jin J, Cao Y, Feng T, Li Y, Wang R, Zhao K, Wang W, Dong B, Cao L. Constructing CuNi dual active sites on ZnIn 2S 4 for highly photocatalytic hydrogen evolution. Catal Sci Technol 2021. [DOI: 10.1039/d0cy02371j] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Novel CuNi bimetal-modified ZnIn2S4 photocatalysts with enhanced photocatalytic hydrogen evolution performance have been explored. The possible mechanism of the synergistic effect and spillover effect between Cu and Ni were proposed.
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Affiliation(s)
- Jingyi Jin
- School of Materials Science and Engineering
- Ocean University of China
- Qingdao
- P. R. China
| | - Yanren Cao
- School of Materials Science and Engineering
- Ocean University of China
- Qingdao
- P. R. China
| | - Ting Feng
- School of Materials Science and Engineering
- Ocean University of China
- Qingdao
- P. R. China
| | - Yanxin Li
- School of Materials Science and Engineering
- Ocean University of China
- Qingdao
- P. R. China
| | - Ruonan Wang
- School of Materials Science and Engineering
- Ocean University of China
- Qingdao
- P. R. China
| | - Kaili Zhao
- School of Materials Science and Engineering
- Ocean University of China
- Qingdao
- P. R. China
| | - Wei Wang
- School of Materials Science and Engineering
- Ocean University of China
- Qingdao
- P. R. China
- Aramco Research Center-Boston
| | - Bohua Dong
- School of Materials Science and Engineering
- Ocean University of China
- Qingdao
- P. R. China
| | - Lixin Cao
- School of Materials Science and Engineering
- Ocean University of China
- Qingdao
- P. R. China
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35
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Touqeer M, Baig MM, Aadil M, Agboola PO, Shakir I, Aboud MFA, Warsi MF. New Co-MnO based Nanocrsytallite for photocatalysis studies driven by visible light. JOURNAL OF TAIBAH UNIVERSITY FOR SCIENCE 2020. [DOI: 10.1080/16583655.2020.1846966] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
| | - Mirza Mahmood Baig
- Department of Chemistry, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Muhammad Aadil
- Department of Chemistry, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Philips O. Agboola
- College of Engineering Al-Muzahmia Branch, King Saud University, Riyadh, Saudi Arabia
| | - Imran Shakir
- Sustainable Energy Technologies (SET) Center, College of Engineering, King Saud University, Riyadh, Saudi Arabia
| | - Mohamed F. Aly Aboud
- Sustainable Energy Technologies (SET) Center, College of Engineering, King Saud University, Riyadh, Saudi Arabia
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36
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Enhancement of Photocatalytic Activities with Nanosized Polystyrene Spheres Patterned Titanium Dioxide Films for Water Purification. Catalysts 2020. [DOI: 10.3390/catal10080886] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
For environmental applications, such as water and air purification utilizing photocatalysts, we synthesized patterned titanium dioxide (TiO2) thin films using polystyrene (PS) spheres. This was primarily done to enhance the surface area and photocatalytic activities. TiO2 thin films were deposited on silicon wafers attached to variously sized PS spheres via the spin coating method and were annealed at 600 °C. The processing step involved patterning and coating a TiO2 sol–gel. The photocatalytic performance was analyzed using an UV–visible spectrophotometer. Within 20 min, a high catalytic efficiency (98% removal) with a 20-time faster decomposition rate of the malachite green (MG) solution than that of the nonpatterned TiO2 was obtained from the patterned TiO2 with 400 nm sized PS due to the large surface area. In addition, the phenol in the water removed as much as 50% within 2 h with the same photocatalyst, which was expected to be one of the strong candidates to be applied to the next generation of photocatalysts for water purification.
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37
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Recent Developments of Advanced Ti3+-Self-Doped TiO2 for Efficient Visible-Light-Driven Photocatalysis. Catalysts 2020. [DOI: 10.3390/catal10060679] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Research into the development of efficient semiconductor photocatalytic materials is a promising approach to solving environmental and energy problems worldwide. Among these materials, TiO2 photocatalysts are one of the most commonly used due to their efficient photoactivity, high stability, low cost and environmental friendliness. However, since the UV content of sunlight is less than 5%, the development of visible light-activated TiO2-based photocatalysts is essential to increase the solar energy efficiency. Here, we review recent works on advanced visible light-activated Ti3+-self-doped TiO2 (Ti3+–TiO2) photocatalysts with improved electronic band structures for efficient charge separation. We analyze the different methods used to produce Ti3+–TiO2 photocatalysts, where Ti3+ with a high oxygen defect density can be used for energy production from visible light. We categorize advanced modifications in electronic states of Ti3+–TiO2 by improving their photocatalytic activity. Ti3+–TiO2 photocatalysts with large charge separation and low recombination of photogenerated electrons and holes can be practically applied for energy conversion and advanced oxidation processes in natural environments and deserve significant attention.
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38
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Pigot C, Noirbent G, Brunel D, Dumur F. Recent advances on push–pull organic dyes as visible light photoinitiators of polymerization. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109797] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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39
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Zia J, Aazam ES, Riaz U. Highly efficient visible light driven photocatalytic activity of MnO2 and Polythiophene/MnO2 nanohybrids against mixed organic pollutants. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.127790] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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40
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Bano Z, Saeed RMY, Zhu S, Xia M, Mao S, Lei W, Wang F. Mesoporous CuS nanospheres decorated rGO aerogel for high photocatalytic activity towards Cr(VI) and organic pollutants. CHEMOSPHERE 2020; 246:125846. [PMID: 31927388 DOI: 10.1016/j.chemosphere.2020.125846] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 12/31/2019] [Accepted: 01/03/2020] [Indexed: 06/10/2023]
Abstract
Mesoporous CuS nanospheres (CuS-NS) decorated reduced graphene oxide (rGO) aerogel composite (3D CuS-NS/rGO) was prepared by chemical reduction process and used for the synergistic removal of Cr(VI) and cationic dyes. The porosity of the as prepared samples was determined by Bruner-Emmet-Teller (BET) surface Area. Structural and morphological properties were studied by Scanning electron microscopy (SEM) and Transmission electron microscope (TEM). These analysis revealed that the as obtained hybrid CuS-NS/rGO composite with three dimensional (3D) structure was composed of mesoporous CuS nanospheres clearly induced onto the interconnected network of rGO sheets. The photocatalytic performance of 3D CuS-NS/rGO composites was studied against the reduction of Cr(VI) and degradation of cationic dyes (MB and RhB) under visible light spectrum. Excellent photocatalytic performance was observed with 3D CuS/rGO hybrid composites as compared to the as prepared CuS nanospheres. This high photocatalytic activity was attributed to the efficient charge transfer from the mesoporous CuS nanospheres to nanosheets of rGO, which was confirmed by UV-Vis spectrometry (UV-Vis). Electrical conductivity of the prepared samples was also investigated using electrochemical impedance spectroscopy (EIS). Additionally, the as prepared hybrid composites was easy to recycle by using simple tweezers and can be a best candidate for industrial applications.
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Affiliation(s)
- Zahira Bano
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - R M Yousaf Saeed
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Sidi Zhu
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - MingZhu Xia
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China.
| | - Shuai Mao
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Wu Lei
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Fengyun Wang
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China.
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41
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Som I, Roy M, Saha R. Advances in Nanomaterial‐based Water Treatment Approaches for Photocatalytic Degradation of Water Pollutants. ChemCatChem 2020. [DOI: 10.1002/cctc.201902081] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Ipsita Som
- Department of ChemistryNational Institute of Technology Durgapur 713209 India
| | - Mouni Roy
- Department of ChemistryNational Institute of Technology Durgapur 713209 India
- Department of ChemistryBanasthali University Banasthali Rajasthan 304022 India
| | - Rajnarayan Saha
- Department of ChemistryNational Institute of Technology Durgapur 713209 India
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42
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Kaveh R, Alijani H, Beyki MH. Magnetic polyresorcinol@CoFe2O4@MnS nanoparticles for adsorption of Pb(II), Ag(I), Cr(VI) and bacteria from water solution. Polym Bull (Berl) 2020. [DOI: 10.1007/s00289-019-02835-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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43
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Boix G, Troyano J, Garzón-Tovar L, Camur C, Bermejo N, Yazdi A, Piella J, Bastus NG, Puntes VF, Imaz I, Maspoch D. MOF-Beads Containing Inorganic Nanoparticles for the Simultaneous Removal of Multiple Heavy Metals from Water. ACS APPLIED MATERIALS & INTERFACES 2020; 12:10554-10562. [PMID: 32026677 DOI: 10.1021/acsami.9b23206] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Pollution of water with heavy metals is a global environmental problem whose impact is especially severe in developing countries. Among water-purification methods, adsorption of heavy metals has proven to be simple, versatile, and cost-effective. However, there is still a need to develop adsorbents with a capacity to remove multiple metal pollutants from the same water sample. Herein, we report the complementary adsorption capacities of metal-organic frameworks (here, UiO-66 and UiO-66-(SH)2) and inorganic nanoparticles (iNPs; here, cerium-oxide NPs) into composite materials. These adsorbents, which are spherical microbeads generated in one step by continuous-flow spray-drying, efficiently and simultaneously remove multiple heavy metals from water, including As(III and V), Cd(II), Cr(III and VI), Cu(II), Pb(II), and Hg(II). We further show that these microbeads can be used as a packing material in a prototype of a continuous-flow water treatment system, in which they retain their metal-removal capacities upon regeneration with a gentle acidic treatment. As proof-of-concept, we evaluated these adsorbents for purification of laboratory water samples prepared to independently recapitulate each of two strongly polluted rivers: the Bone (Indonesia) and Buringanga (Bangladesh) rivers. In both cases, our microbeads reduced the levels of all the metal contaminants to below the corresponding permissible limits established by the World Health Organization (WHO). Moreover, we demonstrated the capacity of these microbeads to lower levels of Cr(VI) in a water sample collected from the Sarno River (Italy). Finally, to create adsorbents that could be magnetically recovered following their use in water purification, we extended our spray-drying technique to simultaneously incorporate two types of iNPs (CeO2 and Fe3O4) into UiO-66-(SH)2, obtaining CeO2/Fe3O4@UiO-66-(SH)2 microbeads that adsorb heavy metals and are magnetically responsive.
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Affiliation(s)
- Gerard Boix
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, 08193 Barcelona, Spain
| | - Javier Troyano
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, 08193 Barcelona, Spain
| | - Luis Garzón-Tovar
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, 08193 Barcelona, Spain
| | - Ceren Camur
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, 08193 Barcelona, Spain
| | - Natalia Bermejo
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, 08193 Barcelona, Spain
| | - Amirali Yazdi
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, 08193 Barcelona, Spain
| | - Jordi Piella
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, 08193 Barcelona, Spain
| | - Neus G Bastus
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, 08193 Barcelona, Spain
| | - Victor F Puntes
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, 08193 Barcelona, Spain
- ICREA, Pg. Lluıs Companys 23, 08010 Barcelona, Spain
| | - Inhar Imaz
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, 08193 Barcelona, Spain
| | - Daniel Maspoch
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, 08193 Barcelona, Spain
- ICREA, Pg. Lluıs Companys 23, 08010 Barcelona, Spain
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44
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Song W, Li J, Wang Z, Fu C, Zhang X, Feng J, Xu Z, Song Q. Degradation of bisphenol A by persulfate coupled with dithionite: Optimization using response surface methodology and pathway. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 699:134258. [PMID: 31522056 DOI: 10.1016/j.scitotenv.2019.134258] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Revised: 08/23/2019] [Accepted: 09/02/2019] [Indexed: 06/10/2023]
Abstract
The degradation efficiency of bisphenol A (BPA) was investigated in the process of persulfate (PS) coupled with dithionite (DTN) as a function of concentration of BPA, PS, DTN and solution pH. A simple response surface methodology (RSM) based on central composite design (CCD) was employed to determine the influence of individual and interaction of above variables and the optimum processing parameters. It is satisfactory of a quadratic model with low probabilities (<0.0001) at a confidence level of 95% to predict the BPA degradation efficiency. The model was well fitted to the actual data and the correlation coefficients of R2 and R2-adj were 0.9270 and 0.8885, respectively. In addition, the obtained optimum conditions for BPA degradation were 1.79 μM, 131.77 μM, 93.64 μM for BPA, PS, DTN and pH = 3.62, respectively. It achieved a degradation efficiency >90% within 150 min. Moreover, the trapping experiment of active species demonstrated that SO4·- and ·OH were the dominant species and natural water matrix showed an obvious inhibition effect on BPA degradation. The BPA degradation pathway was predicted based on GC-MS results in this study.
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Affiliation(s)
- Wei Song
- School of Civil and Environmental Engineering, Shenzhen Key Laboratory of Water Resource Application and Environmental Pollution Control, Harbin Institute of Technology, Shenzhen, Shenzhen 518055, PR China
| | - Ji Li
- School of Civil and Environmental Engineering, Shenzhen Key Laboratory of Water Resource Application and Environmental Pollution Control, Harbin Institute of Technology, Shenzhen, Shenzhen 518055, PR China
| | - Zhuoyue Wang
- School of Civil and Environmental Engineering, Shenzhen Key Laboratory of Water Resource Application and Environmental Pollution Control, Harbin Institute of Technology, Shenzhen, Shenzhen 518055, PR China
| | - Caixia Fu
- School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518055, PR China; Shenzhen Key Laboratory of Soil and Groundwater Pollution Control, Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, Shenzhen, Guangdong 518055, PR China
| | - Xiaolei Zhang
- School of Civil and Environmental Engineering, Shenzhen Key Laboratory of Water Resource Application and Environmental Pollution Control, Harbin Institute of Technology, Shenzhen, Shenzhen 518055, PR China.
| | - Jianpei Feng
- School of Civil and Environmental Engineering, Shenzhen Key Laboratory of Water Resource Application and Environmental Pollution Control, Harbin Institute of Technology, Shenzhen, Shenzhen 518055, PR China
| | - Zhiliang Xu
- School of Civil and Environmental Engineering, Shenzhen Key Laboratory of Water Resource Application and Environmental Pollution Control, Harbin Institute of Technology, Shenzhen, Shenzhen 518055, PR China
| | - Qi Song
- China Meheco Topfond Pharmaceutical Co., Ltd, Zhumadian, Henan 463000, PR China
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45
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Sultanova ED, Nizameev IR, Kholin KV, Kadirov MK, Ovsyannikov AS, Burilov VA, Ziganshina AY, Antipin IS. Photocatalytic properties of hybrid materials based on a multicharged polymer matrix with encored TiO2 and noble metal (Pt, Pd or Au) nanoparticles. NEW J CHEM 2020. [DOI: 10.1039/c9nj06413c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
In this study, we report a synthesis of new nanocomposites, wherein TiO2 is introduced into multicharged polymeric matrix and covered with noble metals (Pt, Pd or Au) for the photocatalytic application.
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Affiliation(s)
- Elza D. Sultanova
- A. M. Butlerov Institute of Chemistry
- Kazan Federal University
- Kremlevskaya str. 18
- Kazan 420018
- Russia
| | - Irek R. Nizameev
- Arbuzov Institute of Organic and Physical Chemistry
- FRC Kazan Scientific Center
- Russian Academy of Sciences
- Kazan 420088
- Russia
| | - Kirill V. Kholin
- Arbuzov Institute of Organic and Physical Chemistry
- FRC Kazan Scientific Center
- Russian Academy of Sciences
- Kazan 420088
- Russia
| | - Marsil K. Kadirov
- Arbuzov Institute of Organic and Physical Chemistry
- FRC Kazan Scientific Center
- Russian Academy of Sciences
- Kazan 420088
- Russia
| | - Alexander S. Ovsyannikov
- Arbuzov Institute of Organic and Physical Chemistry
- FRC Kazan Scientific Center
- Russian Academy of Sciences
- Kazan 420088
- Russia
| | - Vladimir A. Burilov
- A. M. Butlerov Institute of Chemistry
- Kazan Federal University
- Kremlevskaya str. 18
- Kazan 420018
- Russia
| | - Albina Y. Ziganshina
- Arbuzov Institute of Organic and Physical Chemistry
- FRC Kazan Scientific Center
- Russian Academy of Sciences
- Kazan 420088
- Russia
| | - Igor S. Antipin
- A. M. Butlerov Institute of Chemistry
- Kazan Federal University
- Kremlevskaya str. 18
- Kazan 420018
- Russia
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46
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Oloye O, Fernando JFS, Waclawik ER, Golberg D, O’Mullane AP. Galvanic replacement of liquid metal Galinstan with copper for the formation of photocatalytically active nanomaterials. NEW J CHEM 2020. [DOI: 10.1039/d0nj02652b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Galvanic replacement of liquid metal Galinstan under mechanical agitation with copper creates a multi-elemental system that is photocatalytically active for the degradation of organic dyes where reuseability is achieved via immobilisation on a solid support.
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Affiliation(s)
- Olawale Oloye
- School of Chemistry and Physics
- Queensland University of Technology (QUT)
- Brisbane
- Australia
- Centre for Materials Science
| | - Joseph F. S. Fernando
- School of Chemistry and Physics
- Queensland University of Technology (QUT)
- Brisbane
- Australia
- Centre for Materials Science
| | - Eric R. Waclawik
- School of Chemistry and Physics
- Queensland University of Technology (QUT)
- Brisbane
- Australia
- Centre for Materials Science
| | - Dmitri Golberg
- School of Chemistry and Physics
- Queensland University of Technology (QUT)
- Brisbane
- Australia
- Centre for Materials Science
| | - Anthony P. O’Mullane
- School of Chemistry and Physics
- Queensland University of Technology (QUT)
- Brisbane
- Australia
- Centre for Materials Science
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Wang R, Shi K, Huang D, Zhang J, An S. Synthesis and degradation kinetics of TiO 2/GO composites with highly efficient activity for adsorption and photocatalytic degradation of MB. Sci Rep 2019; 9:18744. [PMID: 31822693 PMCID: PMC6904494 DOI: 10.1038/s41598-019-54320-w] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 11/04/2019] [Indexed: 11/09/2022] Open
Abstract
Poriferous TiO2/GO (denoted as TGO-x%) photocatalysts with ultrathin grapheme oxide (GO) layer were prepared by a hydrothermal method, the adsorption and photocatalytic degradation and its kinetics about Methylene blue(MB) were studied systematically. All the TGO-x% showed improved adsorption and photodegradation performance. TGO-25% had excellent adsorptivity while TGO-20% exhibit the highest visible light photocatalytic degradation activity. The adsorption capacity for TGO-25% was 20.25 mg/gcatalyst along with the k1 was about 0.03393 min·gcatalyst/mg, this enhancement was mainly owing to the strong adsorption capacity of GO and the stacking structure of sheets and nanoparticles. GO sheets prevented the agglomeration of TiO2 particles and TiO2 nanoparticles also prevented the agglomeration of GO sheets, which could provides greater surface area. Besides, the remarkably superior photodegradation activity of TiO2/GO composites is mainly attribute to the strong absorption of visible light and the effective charge separation revealed by the photoluminescence, the total removal rate of MB is 97.5% after 35 min adsorption and 140 min degradation, which is 3.5 times higher than that of TiO2.
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Affiliation(s)
- Ruifen Wang
- Inner Mongolia Key Laboratory of Advanced Ceramic Materials and Devices, School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou, 014010, PR China.
| | - Kaixuan Shi
- Inner Mongolia Key Laboratory of Advanced Ceramic Materials and Devices, School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou, 014010, PR China
| | - Dong Huang
- Inner Mongolia Key Laboratory of Advanced Ceramic Materials and Devices, School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou, 014010, PR China
| | - Jing Zhang
- Inner Mongolia Key Laboratory of Advanced Ceramic Materials and Devices, School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou, 014010, PR China
| | - Shengli An
- Inner Mongolia Key Laboratory of Advanced Ceramic Materials and Devices, School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou, 014010, PR China
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Rao VN, Reddy NL, Kumari MM, Cheralathan KK, Ravi P, Sathish M, Neppolian B, Reddy KR, Shetti NP, Prathap P, Aminabhavi TM, Shankar MV. Sustainable hydrogen production for the greener environment by quantum dots-based efficient photocatalysts: A review. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 248:109246. [PMID: 31323456 DOI: 10.1016/j.jenvman.2019.07.017] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 07/01/2019] [Accepted: 07/06/2019] [Indexed: 05/23/2023]
Abstract
Nano-size photocatalysts exhibit multifunctional properties that opened the door for improved efficiency in energy, environment, and health care applications. Among the diversity of catalyst Quantum dots are a class of nanomaterials having a particle size between 2 and 10 nm, showing unique optoelectrical properties that are limited to some of the metal, metal oxide, metal chalcogenides, and carbon-based nanostructures. These unique characteristics arise from either pristine or binary/ternary composites where noble metal/metal oxide/metal chalcogenide/carbon quantum dots are anchored on the surface of semiconductor photocatalyst. It emphasized that properties, as well as performance of photocatalytic materials, are greatly influenced by the choice of synthesis methods and experimental conditions. Among the chemical methods, photo-deposition, precipitation, and chemical reduction, are the three most influential synthesis approaches. Further, two types of quantum dots namely metal based and carbon-based materials have been highlighted. Based on the optical, electrical and surface properties, quantum dots based photocatalysts have been divided into three categories namely (a) photocatalyst (b) co-catalyst and (c) photo-sensitizer. They showed enhanced photocatalytic performance for hydrogen production under visible/UV-visible light irradiation. Often, pristine metal chalcogenides as well as metal/metal oxide/carbon quantum dots attached to a semiconductor particle exhibit enhanced the photocatalytic activity for hydrogen production through absorption of visible light. Alternatively, noble metal quantum dots, which provide plenty of defects/active sites facilitate continuous hydrogen production. For instance, production of hydrogen in the presence of sacrificial agents using metal chalcogenides, metal oxides, and coinage metals based catalysts such as CdS/MoS2 (99,000 μmol h-1g-1) TiO2-Ni(OH)2 (47,195 μmol h-1g-1) and Cu/Ag-TiO2 nanotubes (56,167 μmol h-1g-1) have been reported. Among the carbon-based nanostructures, graphitic C3N4 and carbon quantum dots composites displayed enhanced hydrogen gas (116.1 μmol h-1) production via overall water splitting. This review accounts recent findings on various chemical approaches used for quantum dots synthesis and their improved materials properties leading to enhanced hydrogen production particularly under visible light irradiation. Finally, the avenue to improve quantum efficiency further is proposed.
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Affiliation(s)
- V Navakoteswara Rao
- Nanocatalysis and Solar Fuels Research Laboratory, Department of Materials Science & Nanotechnology, Yogi Vemana University, Kadapa, 516005, Andhra Pradesh, India
| | - N Lakshmana Reddy
- Nanocatalysis and Solar Fuels Research Laboratory, Department of Materials Science & Nanotechnology, Yogi Vemana University, Kadapa, 516005, Andhra Pradesh, India
| | - M Mamatha Kumari
- Nanocatalysis and Solar Fuels Research Laboratory, Department of Materials Science & Nanotechnology, Yogi Vemana University, Kadapa, 516005, Andhra Pradesh, India
| | - K K Cheralathan
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology (VIT), Thiruvalam Road, Vellore, 632014, Tamil Nadu, India
| | - P Ravi
- Functional Materials Division, Central Electrochemical Research Institute (CSIR-CECRI), Karaikudi, 630003, Tamil Nadu, India
| | - M Sathish
- Functional Materials Division, Central Electrochemical Research Institute (CSIR-CECRI), Karaikudi, 630003, Tamil Nadu, India
| | - B Neppolian
- SRM Research Institute, SRM Institute of Science and Technology, Kattankulathur, Chennai, 603203, Tamil Nadu, India
| | - Kakarla Raghava Reddy
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Nagaraj P Shetti
- Electrochemistry and Materials Group, Department of Chemistry, K. L. E. Institute of Technology, Affiliated to Visvesvaraya Technological University, Gokul, Hubballi, 580030, Karnataka, India
| | - P Prathap
- Photovoltaic Metrology Laboratory, National Physical Laboratory (CSIR-NPL), Dr.K.S. Krshnan Marg, New Delhi, 110012, India
| | | | - M V Shankar
- Nanocatalysis and Solar Fuels Research Laboratory, Department of Materials Science & Nanotechnology, Yogi Vemana University, Kadapa, 516005, Andhra Pradesh, India.
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Zhang F, Li YH, Li JY, Tang ZR, Xu YJ. 3D graphene-based gel photocatalysts for environmental pollutants degradation. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 253:365-376. [PMID: 31325881 DOI: 10.1016/j.envpol.2019.06.089] [Citation(s) in RCA: 97] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 06/20/2019] [Accepted: 06/22/2019] [Indexed: 05/23/2023]
Abstract
Enormous research interest is devoted to fabricating three-dimensional graphene-based gels (3D GBGs) toward improved conversion of solar energy by virtue of the intrinsic properties of single graphene and 3D porous structure characteristics. Here, this concise minireview is primarily focused on the recent progress on applications of 3D GBGs, including aerogels and hydrogels, in photocatalytic degradation of pollutants from water and air, such as organic pollutants, heavy metal ions, bacteria and gaseous pollutants. In particular, the preponderances of 3D GBG photocatalysts for environmental pollutants degradation have been elaborated. Furthermore, in addition to discussing opportunities offered by 3D GBG composite photocatalysts, we also describe the existing problems and the future direction of 3D GBG materials in this burgeoning research area. It is hoped that this review could spur multidisciplinary research interest for advancing the rational utilization of 3D GBGs for practical applications in environmental remediation.
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Affiliation(s)
- Fan Zhang
- College of Chemistry, New Campus, Fuzhou University, Fuzhou, 350116, PR China
| | - Yue-Hua Li
- College of Chemistry, New Campus, Fuzhou University, Fuzhou, 350116, PR China; State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350116, PR China
| | - Jing-Yu Li
- College of Chemistry, New Campus, Fuzhou University, Fuzhou, 350116, PR China; State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350116, PR China
| | - Zi-Rong Tang
- College of Chemistry, New Campus, Fuzhou University, Fuzhou, 350116, PR China.
| | - Yi-Jun Xu
- College of Chemistry, New Campus, Fuzhou University, Fuzhou, 350116, PR China; State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350116, PR China
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