1
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Liu CH, Xu L, Wang ZY, Han SJ, Fu ML, Yuan B. Green Synthesis of Polyurethane Sponge-Grafted Calcium Alginate with Carbon Ink Aerogel with High Water Vapor Harvesting Capacity for Solar-Driven All-Weather Atmospheric Water Harvesting. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:14413-14425. [PMID: 38946296 DOI: 10.1021/acs.langmuir.4c01119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
Atmospheric water harvesting (AWH) technology is a new strategy for alleviating freshwater scarcity. Adsorbent materials with high hygroscopicity and high photothermal conversion efficiency are the key to AWH technology. Hence, in this study, a simple and large-scale preparation for a hygroscopic compound of polyurethane (PU) sponge-grafted calcium alginate (CA) with carbon ink (SCAC) was developed. The PU sponge in the SCAC aerogel acts as a substrate, CA as a moisture adsorber, and carbon ink as a light adsorber. The SCAC aerogel exhibits excellent water absorption of 0.555-1.40 g·g-1 within a wide range of relative humidity (40-80%) at 25 °C. The SCAC aerogel could release adsorbed water driven by solar energy, and more than 92.17% of the adsorbed water could be rapidly released over a wide solar intensity range of 1.0-2.0 sun. In an outdoor experiment, 57.517 g of SCAC was able to collect 32.8 g of clean water in 6 h, and the water quality meets the drinking water standards set by the World Health Organization. This study suggests a new approach to design promising AWH materials and infers the potential practical application of SCAC aerogel-based adsorbents.
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Affiliation(s)
- Cai-Hua Liu
- Xiamen Key Laboratory of Municipal and Industrial Solid Waste Utilization and Pollution Control, College of Civil Engineering, Huaqiao University, Xiamen, Fujian 361021, P. R. China
| | - Lei Xu
- Xiamen Key Laboratory of Municipal and Industrial Solid Waste Utilization and Pollution Control, College of Civil Engineering, Huaqiao University, Xiamen, Fujian 361021, P. R. China
| | - Zhen-Yu Wang
- Xiamen Key Laboratory of Municipal and Industrial Solid Waste Utilization and Pollution Control, College of Civil Engineering, Huaqiao University, Xiamen, Fujian 361021, P. R. China
| | - Sheng-Jie Han
- Xiamen Key Laboratory of Municipal and Industrial Solid Waste Utilization and Pollution Control, College of Civil Engineering, Huaqiao University, Xiamen, Fujian 361021, P. R. China
| | - Ming-Lai Fu
- Xiamen Key Laboratory of Municipal and Industrial Solid Waste Utilization and Pollution Control, College of Civil Engineering, Huaqiao University, Xiamen, Fujian 361021, P. R. China
| | - Baoling Yuan
- Xiamen Key Laboratory of Municipal and Industrial Solid Waste Utilization and Pollution Control, College of Civil Engineering, Huaqiao University, Xiamen, Fujian 361021, P. R. China
- Key Laboratory of Songliao Aquatic Environment, Ministry of Education, Jilin Jianzhu University, Changchun 130118, P. R. China
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2
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Khan H. In situ nitrogen-doped graphene-TiO 2 nano-hybrid as an efficient photocatalyst for pollutant degradation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024:10.1007/s11356-024-34114-y. [PMID: 38963620 DOI: 10.1007/s11356-024-34114-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Accepted: 06/20/2024] [Indexed: 07/05/2024]
Abstract
To solve environmental-related issues (wastewater remediation, energy conservation and air purification) caused by rapid urbanization and industrialization, synthesis of novel and modified nanostructured photocatalyst has received increasing attention in recent years. We herein report the facile synthesis of in situ nitrogen-doped chemically anchored TiO2 with graphene through sol-gel method. The structural analysis using X-ray diffraction showed that the crystalline nitrogen-doped graphene-titanium dioxide (N-GT) nanocomposite is mainly composed of anatase with minor brookite phase. Raman spectroscopy revealed the graphene characteristic band presence at low intensity level in addition to the main bands of anatase TiO2. X-ray photoelectron spectroscopy analysis disclosed the chemical bonding of TiO2 with graphene via Ti-O-C linkage, also the substitution of nitrogen dopant in both TiO2 lattice and into the skeleton of graphene nanoflakes. UV-Vis absorption spectroscopy analysis established that the modified material can efficiently absorb the longer wavelength range photons due to its narrowed band gap. The N0.06-GT material showed the highest degradation efficiency over methylene blue (MB, ∼98%) under UV and sulfamethoxazole (SMX, ∼ 90.0%) under visible light irradiation. The increased activity of the composite is credited to the synergistic effect of high surface area via greater adsorption capacity, narrowed band gap via increased photon absorption, and reduced e-/h+ recombination via good electron acceptability of graphene nanoflakes and defect sites (Ti3+ and oxygen vacancy (Vo)). The ROS experiments further depict that primarily hydroxyl radicals (OH•) and superoxide anions (O2•-) are responsible for the pollutant degradation in the process redox reactions. In summary, our findings specify new insight into the fabrication of this new material whose efficiency can be further tested in applications like H2 production, CO2 conversion to value-added products, and in energy conservation and storage.
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Affiliation(s)
- Hayat Khan
- Department of Chemical Engineering, King Faisal University, P.O. Box 380, Al-Ahsa, 31982, Kingdom of Saudi Arabia.
- Department of Chemical Engineering, McGill University, Montreal, Quebec, H3A 2B2, Canada.
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3
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Wang Y, Yang J, Wang B, Chen M, Ran L, Liu S, Zhou M, Zhang L, Jiang Y, Dai X, Lin L, Zhang Y. Fabrication of close-contact S-scheme Cr 2Bi 3O 11-Bi 2O 3/Fe 3O 4@porous carbon microspheres based on in-situ reaction: Enhanced photo-Fenton wastewater treatment. J Colloid Interface Sci 2024; 673:690-699. [PMID: 38901359 DOI: 10.1016/j.jcis.2024.06.127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Revised: 06/04/2024] [Accepted: 06/16/2024] [Indexed: 06/22/2024]
Abstract
Low photo-induced carrier recombination rate, exceptional light absorption, and advantageous recycling performance are crucial attributes of semiconductor photocatalyst for wastewater purification. Herein, based on in-situ reaction, close-contact S-scheme bismuth chromate/bismuth oxide/ferroferric oxide@porous carbon microspheres (Cr2Bi3O11-Bi2O3/Fe3O4@PCs) (F-CBFP) was fabricated using alginates as precursor. Due to the abundance of functional groups on the porous carbon (PCs), Bi2O3 and Cr2Bi3O11 nanoparticles (NPs) are in situ deposited onto the highly conductive 3D magnetic porous Fe3O4@PCs microsphere surface, which not only form tight interfacial contacts and reduces interfacial potential barriers but also prevent agglomeration or shedding of the NPs during photocatalytic reactions. Moreover, density functional theory (DFT) calculations further confirm that the formation of a robust built-in electric field (BIEF) within F-CBFP prompts photo-induced electrons in the conduction band (CB) of Bi2O3 to combine with holes in the valence band (VB) of Cr2Bi3O11, effectively constructing a S-scheme heterojunction system. Also, Fe3O4 can act as a Fenton catalyst, activating the H2O2 generated by Cr2Bi3O11 under illumination. In wastewater treatment, the obtained F-CBFP shows remarkable photo-Fenton degradation (towards methyl orange (97.8 %, 60 min) and tetracycline hydrochloride (95.3 %, 100 min)) and disinfection performance (100 % E. coli inactivation), and exceptional cyclic stability.
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Affiliation(s)
- Ying Wang
- College of Water Conservancy and Hydropower Engineering, Sichuan Agricultural University, Yaan 625014, China
| | - Jia Yang
- College of Science, Sichuan Agricultural University, Yaan 625014, China
| | - Bolin Wang
- School of Chemistry, Xi'an Jiaotong University, Xi'an 710049, China
| | - Maoli Chen
- College of Science, Sichuan Agricultural University, Yaan 625014, China
| | - Linlin Ran
- College of Science, Sichuan Agricultural University, Yaan 625014, China
| | - Shuting Liu
- College of Science, Sichuan Agricultural University, Yaan 625014, China
| | - Meng Zhou
- College of Science, Sichuan Agricultural University, Yaan 625014, China
| | - Li Zhang
- College of Science, Sichuan Agricultural University, Yaan 625014, China
| | - Yuanyuan Jiang
- College of Science, Sichuan Agricultural University, Yaan 625014, China
| | - Xianxiang Dai
- College of Science, Sichuan Agricultural University, Yaan 625014, China
| | - Li Lin
- College of Science, Sichuan Agricultural University, Yaan 625014, China.
| | - Yunsong Zhang
- College of Science, Sichuan Agricultural University, Yaan 625014, China.
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4
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Alshammari KF. Recent advances of piezo-catalysis and photocatalysis for efficient environmental remediation. LUMINESCENCE 2024; 39:e4808. [PMID: 38890122 DOI: 10.1002/bio.4808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 04/02/2024] [Accepted: 06/07/2024] [Indexed: 06/20/2024]
Abstract
The efficient degradation of organic pollutants in diverse environmental matrices can be achieved through the synergistic application of piezo-catalysis and photocatalysis. The focus of this study is on understanding the fundamental principles and mechanisms that govern the collaborative action of piezoelectric and photocatalytic materials. Piezoelectric nanomaterials, under mechanical stress, generate piezo-potential, which, when coupled with photocatalysts, enhances the generation and separation of charge carriers. The resulting cascade of redox reactions promotes the degradation of a wide spectrum of organic pollutants. The comprehensive investigation involves a variety of experimental techniques, including advanced spectroscopy and microscopy, to elucidate the intricate interplay between mechanical and photoinduced processes. The influence of key parameters, such as material composition, morphology, and external stimuli on the catalytic performance, is systematically explored. This study contributes to the increasing knowledge of environmental remediation and lays the foundation for the development of advanced technologies using piezo and photocatalysis for sustainable pollutant removal.
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Affiliation(s)
- Khaled F Alshammari
- Department of Criminal Justice and Forensics, King Fahad Security College, Riyadh, Saudi Arabia
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5
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Ahmadipour M, Ardani MR, Sarafbidabad M, Missaoui N, Satgunam M, Singh R, Kahri H, Pal U, Pang AL, Iqbal MS, Garg R, Bhattacharya A. Ultrasonic-assisted synthesis of CaCu 3Ti 4O 12/reduced graphene oxide composites for enhanced photocatalytic degradation of pharmaceutical products: Ibuprofen and Ciprofloxacin. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:27770-27788. [PMID: 38514592 DOI: 10.1007/s11356-024-32977-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 03/14/2024] [Indexed: 03/23/2024]
Abstract
The objective of this research is to create a highly effective approach for eliminating pollutants from the environment through the process of photocatalytic degradation. The study centers around the production of composites consisting of CaCu3Ti4O12 (CCTO) and reduced graphene oxide (rGO) using an ultrasonic-assisted method, with a focus on their capacity to degrade ibuprofen (IBF) and ciprofloxacin (CIP) via photodegradation. The impact of rGO on the structure, morphology, and optical properties of CCTO was inspected using XRD, FTIR, Raman, FESEM, XPS, BET, and UV-Vis. Morphology characterization showed that rGO particles were dispersed within the CCTO matrix without any specific chemical interaction between CCTO and C in the rGO. The BET analysis revealed that with increasing the amount of rGO in the composite, the specific surface area significantly increased compared to the CCTO standalone. Besides, increasing rGO resulted in a reduction in the optical bandgap energy to around 2.09 eV, makes it highly promising photocatalyst for environmental applications. The photodegradation of IBF and CIP was monitored using visible light irradiation. The results revealed that both components were degraded above 97% after 60 min. The photocatalyst showed an excellent reusability performance with a slight decrease after five runs to 93% photodegradation efficiency.
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Affiliation(s)
- Mohsen Ahmadipour
- Institute of Power Engineering, Universiti Tenaga Nasional, Serdang, Malaysia.
| | - Mohammad Rezaei Ardani
- School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, Engineering Campus, 14300, Nibong Tebal, Pulau Pinang, Malaysia
| | - Mohsen Sarafbidabad
- Biomedical Engineering Department, Faculty of Engineering, University of Isfahan, Isfahan, Iran
| | - Nadhem Missaoui
- Laboratory of Advanced Materials and Interfaces (LIMA), Faculty of Science of Monastir, University of Monastir, Avenue of Environment, 5000, Monastir, Tunisia
| | - Meenaloshini Satgunam
- Institute of Power Engineering, Universiti Tenaga Nasional, Serdang, Malaysia
- Department of Mechanical Engineering, Universiti Tenaga Nasional, Serdang, Malaysia
| | - Ramesh Singh
- Center of Advanced Manufacturing and Materials Processing (AMMP), Faculty of Engineering, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Hamza Kahri
- Laboratory of Advanced Materials and Interfaces (LIMA), Faculty of Science of Monastir, University of Monastir, Avenue of Environment, 5000, Monastir, Tunisia
| | - Ujjwal Pal
- Department of Energy & Environmental Engineering, CSIR Indian Institute of Chemical Technology, Tarnaka, Hyderabad, Telangana, 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Ai Ling Pang
- Department of Chemical Science, Faculty of Science, Universiti Tunku Abdul Rahman, 31900, Kampar, Perak, Malaysia
| | - Muhammad Saqlain Iqbal
- Department of Chemistry, COMSATS University Islamabad, Lahore campus, 54000, Lahore, Pakistan
| | - Renuka Garg
- Department of Chemical and Biological Engineering, American University of Sharjah, Sharjah, United Arab Emirates
| | - Anish Bhattacharya
- Department of Physics, Faculty of Science, Universiti Teknologi Malaysia, UTM, 81310, Skudai, Johor, Malaysia
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6
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Momina M, Ahmad K. Synthesis of biodegradable sodium alginate-based carbon dot-nanomagnetic composite (SA-FOCD) for enhanced water remediation using ANN modelling, RSM optimization, and economic analysis. Int J Biol Macromol 2024; 263:130253. [PMID: 38368976 DOI: 10.1016/j.ijbiomac.2024.130253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 12/04/2023] [Accepted: 02/15/2024] [Indexed: 02/20/2024]
Abstract
This study involves the synthesis of a magnetic‑sodium alginate bio-composite embedded with carbon dots, designed to eliminate pollutants like dyes and metal ions and tackle environmental issues. The modified particles are effectively incorporated into the biopolymers for improved adsorption and regeneration performance using an economically viable and environmentally sustainable process. The composite's surface morphology and chemical structure have been extensively characterized through various analytical techniques. It has been found that CD-modified nanoparticles demonstrate good dispersion, abundance in functional groups, and excellent adsorption performance. The adsorption process variables have been optimized using Response Surface Methodology (RSM), resulting in a maximum adsorption capacity of 232.44 mg/g achieved under optimal conditions. An Artificial Neural Network (ANN) model with a topology of 3-5-5-1 is constructed to predict the adsorption capacity of composite, exhibiting superior predictive performance. The statistical physical model was also performed to understand the adsorption mechanism and orientation of dye molecules attached to the surface of the composite. The adsorption capacity using statistical physical method was found to be 467.57 mg/g. The composite exhibits good adsorption and regeneration performance in the column adsorption study. Furthermore, a detailed cost analysis of the synthesized composite was performed, ensuring its economic viability in real-world applications.
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Affiliation(s)
- Momina Momina
- Department of Civil Engineering, Jamia Millia Islamia, New Delhi-110025, India.
| | - Kafeel Ahmad
- Department of Civil Engineering, Jamia Millia Islamia, New Delhi-110025, India
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7
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Lin X, Shi J, Meng G, Pan Y, Liu Z. Effect of graphene oxide on sodium alginate hydrogel as a carrier triggering release of ibuprofen. Int J Biol Macromol 2024; 260:129515. [PMID: 38237826 DOI: 10.1016/j.ijbiomac.2024.129515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 01/09/2024] [Accepted: 01/13/2024] [Indexed: 01/21/2024]
Abstract
The design and preparation of safe wound dressings with antibacterial and controlled drug release abilities is valuable in medicine. This research focuses on the fabrication of a hydrogel carrier with graphene oxide (GO)-triggered ibuprofen (IBU) release to control inflammation. The hydrogel was prepared by cross-linking the base polymer sodium alginate (SA) and functionalized GO. The morphology of the gel was observed by a scanning electron microscope (SEM), and its structure was analyzed through X-ray diffraction (XRD) and Fourier transform infrared reflection (FTIR) spectroscopy. The effects of GO on swelling capacity, IBU release behavior and antibacterial activity were investigated by using the prepared GO/SA hydrogel as a drug carrier and IBU as a drug model. In vitro studies confirmed that the GO/SA hydrogel had good antimicrobial activity and excellent cytotoxicity. The analysis of cumulative IBU release rates revealed that the addition of GO could promote the release of IBU, and the change in GO content did not have a prominent effect on IBU release. At the same time, the rate of IBU release from the GO/SA hydrogel was affected by near-infrared light. Under a light source, the release rate of IBU increased, and the release amount of IBU showed a clear stepwise increase under light on-off conditions. These results suggest that the GO/SA hydrogel could be a potential antibacterial and anti-inflammatory wound dressing.
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Affiliation(s)
- Xiuling Lin
- Department of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China.
| | - Jiali Shi
- Department of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China
| | - Ge Meng
- Department of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China
| | - Yusong Pan
- Department of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China
| | - Zhenying Liu
- Department of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China
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8
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Datta N, Jinan T, Wong SY, Chakravarty S, Li X, Anwar I, Arafat MT. Self-assembled sodium alginate polymannuronate nanoparticles for synergistic treatment of ophthalmic infection and inflammation: Preparation optimization and in vitro/vivo evaluation. Int J Biol Macromol 2024; 262:130038. [PMID: 38336323 DOI: 10.1016/j.ijbiomac.2024.130038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 01/25/2024] [Accepted: 02/05/2024] [Indexed: 02/12/2024]
Abstract
Frequent administrations are often needed during the treatment of ocular diseases due to the low bioavailability of the existing eye drops owing to inadequate corneal penetration and rapid drug washout. Herein, sodium alginate polymannuronate (SA) nanocarriers were developed using ionic gelation method that can provide better bioavailability through mucoadhesivity and sustained drug release by binding to the ocular mucus layer. This study disproves the common belief that only the G block of SA participates in the crosslinking reaction during ionic gelation. Self-assembly capability due to the linear flexible structure of the M block, better biocompatibility than G block along with the feasibility of controlling physicochemical characteristics postulate a high potential for designing efficient ocular drug delivery systems. Initially, four crosslinkers of varied concentrations were investigated. Taguchi design of experiment revealed the statistically significant effect of the crosslinker type and concentration on the particle size and stability. The best combination was detected by analyzing the particle size and zeta potential values that showed the desired microstructural properties for ocular barrier penetration. The desired combination was SA-Ca-1 that had particle size within the optimal corneal penetration range, that is 10-200 nm (135 nm). The drug carriers demonstrated excellent entrapment efficiency (∼89 % for Ciprofloxacin and ∼96 % for Dexamethasone) along with a sustained and simultaneous release of dual drug for at least 2 days. The nanoparticles also showed biocompatibility (4 ± 0.6 % hemolysis) and high mucoadhesivity (73 ± 2 % for 0.25 g) which was validated by molecular docking analysis. The prepared formulation was able to reduce the scleral inflammation of the rabbit uveitis models significantly within 3 days. Thus, the eye drop showed remarkable potential for efficient drug delivery leading to faster recovery.
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Affiliation(s)
- Nondita Datta
- Department of Biomedical Engineering, Bangladesh University of Engineering and Technology (BUET), Dhaka, Bangladesh
| | - Tohfatul Jinan
- Department of Biomedical Engineering, Bangladesh University of Engineering and Technology (BUET), Dhaka, Bangladesh
| | - Siew Yee Wong
- Institute of Sustainability for Chemicals, Energy and Environment, Agency for Science, Technology and Research (A*STAR), Singapore 138634, Singapore
| | - Saumitra Chakravarty
- Department of Pathology, Bangabandhu Sheikh Mujib Medical University (BSMMU), Shahbag, Dhaka 1000, Bangladesh
| | - Xu Li
- Institute of Sustainability for Chemicals, Energy and Environment, Agency for Science, Technology and Research (A*STAR), Singapore 138634, Singapore; Institute of Materials Research and Engineering (IMRE), A*STAR (Agency for Science, Technology and Research), Singapore 138634, Singapore
| | | | - M Tarik Arafat
- Department of Biomedical Engineering, Bangladesh University of Engineering and Technology (BUET), Dhaka, Bangladesh.
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9
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Zango ZU, Lawal MA, Usman F, Sulieman A, Akhdar H, Eisa MH, Aldaghri O, Ibnaouf KH, Lim JW, Khoo KS, Cheng YW. Promoting the suitability of graphitic carbon nitride and metal oxide nanoparticles: A review of sulfonamides photocatalytic degradation. CHEMOSPHERE 2024; 351:141218. [PMID: 38266876 DOI: 10.1016/j.chemosphere.2024.141218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 12/24/2023] [Accepted: 01/12/2024] [Indexed: 01/26/2024]
Abstract
The widespread consumption of pharmaceutical drugs and their incomplete breakdown in organisms has led to their extensive presence in aquatic environments. The indiscriminate use of antibiotics, such as sulfonamides, has contributed to the development of drug-resistant bacteria and the persistent pollution of water bodies, posing a threat to human health and the safety of the environment. Thus, it is paramount to explore remediation technologies aimed at decomposing and complete elimination of the toxic contaminants from pharmaceutical wastewater. The review aims to explore the utilization of metal-oxide nanoparticles (MONPs) and graphitic carbon nitrides (g-C3N4) in photocatalytic degradation of sulfonamides from wastewater. Recent advances in oxidation techniques such as photocatalytic degradation are being exploited in the elimination of the sulfonamides from wastewater. MONP and g-C3N4 are commonly evolved nano substances with intrinsic properties. They possessed nano-scale structure, considerable porosity semi-conducting properties, responsible for decomposing wide range of water pollutants. They are widely applied for photocatalytic degradation of organic and inorganic substances which continue to evolve due to the low-cost, efficiency, less toxicity, and more environmentally friendliness of the materials. The review focuses on the current advances in the application of these materials, their efficiencies, degradation mechanisms, and recyclability in the context of sulfonamides photocatalytic degradation.
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Affiliation(s)
- Zakariyya Uba Zango
- Department of Chemistry, College of Natural and Applied Science, Al-Qalam University Katsina, 2137, Katsina, Nigeria; Institute of Semi-Arid Zone Studies, Al-Qalam University Katsina, 2137, Katsina, Nigeria
| | | | - Fahad Usman
- Engineering Unit, Department of Mathematics, Connecticut State Community College Norwalk, Connecticut State Colleges and Universities (CSCU), United States
| | - Abdelmoneim Sulieman
- Department of Radiology and Medical Imaging, Prince Sattam bin Abdulaziz University, PO Box 422, Alkharj, 11942, Kingdom of Saudi Arabia
| | - Hanan Akhdar
- Department of Physics, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, 13318, Saudi Arabia.
| | - M H Eisa
- Department of Physics, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, 13318, Saudi Arabia
| | - Osamah Aldaghri
- Department of Physics, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, 13318, Saudi Arabia
| | - Khalid Hassan Ibnaouf
- Department of Physics, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, 13318, Saudi Arabia
| | - Jun Wei Lim
- HICoE-Centre for Biofuel and Biochemical Research, Institute of Self-Sustainable Building, Department of Fundamental and Applied Sciences, Universiti Teknologi PETRONAS, 32610, Seri Iskandar, Perak Darul Ridzuan, Malaysia; Department of Biotechnology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India.
| | - Kuan Shiong Khoo
- Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan, Taiwan; Centre for Herbal Pharmacology and Environmental Sustainability, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Kelambakkam, 603103, Tamil Nadu, India.
| | - Yoke Wang Cheng
- NUS Environmental Research Institute, National University of Singapore, 1 Create Way, Create Tower, #15-02, 138602, Singapore, Singapore; Energy and Environmental Sustainability Solutions for Megacities (E2S2), Campus for Research Excellence and Technological Enterprise (CREATE), 138602, Singapore, Singapore
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10
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Wang Q, Xue Q, Li Y. An eco-friendly construction of superwetting alginate-based aerogels with self-cleaning performance for multifunctional water treatment. Int J Biol Macromol 2024; 261:129766. [PMID: 38290629 DOI: 10.1016/j.ijbiomac.2024.129766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 01/15/2024] [Accepted: 01/24/2024] [Indexed: 02/01/2024]
Abstract
The increasingly complex oily wastewater has become a severe environmental issue worldwide, calling for the eco-friendly methods toward multifunctionality, high efficiency and sustainability. This work presents a superwetting alginate-based aerogels prepared by a feasible mineralization without the assistance of intermediates. In this strategy, in-situ grown β-FeOOH nanoparticles on whole porous alginate aerogels, not only provides the hierarchical topography and more -OH groups, enhancing underwater oleophobicity (152 ± 4.4°) and fouling resistance of porous aerogels, but also endows with the outstanding photo-Fenton self-cleaning ability for pollutant degradation. As a result, the outstanding separation selectivity for oil and water (>99.5 %), and superior reusability is achieved without the significant diminution of permeation ability (897-1136 L·m-2·h-1). Furthermore, with the advantage of excellent photocatalytic performance under sunlight, the oily wastewater containing soluble organic pollutants can be remediated by simultaneous separation and photocatalysis decomposition under a gravity-driven filtration solely, revealing a promising potential for complex oily wastewater treatment with the rationally usage of sunlight.
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Affiliation(s)
- Qiaozhi Wang
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, PR China
| | - Qingwang Xue
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, PR China.
| | - Ying Li
- Key Laboratory of Colloid and Interface Chemistry of State Education Ministry, Shandong University, Jinan 250100, PR China.
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11
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Maldonado-Carmona N, Piccirillo G, Godard J, Heuzé K, Genin E, Villandier N, Calvete MJF, Leroy-Lhez S. Bio-based matrix photocatalysts for photodegradation of antibiotics. Photochem Photobiol Sci 2024; 23:587-627. [PMID: 38400987 DOI: 10.1007/s43630-024-00536-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 01/15/2024] [Indexed: 02/26/2024]
Abstract
Antibiotics development during the last century permitted unprecedent medical advances. However, it is undeniable that there has been an abuse and misuse of antimicrobials in medicine and cosmetics, food production and food processing, in the last decades. The pay toll for human development and consumism is the emergence of extended antimicrobial resistance and omnipresent contamination of the biosphere. The One Health concept recognizes the interconnection of human, environmental and animal health, being impossible alter one without affecting the others. In this context, antibiotic decontamination from water-sources is of upmost importance, with new and more efficient strategies needed. In this framework, light-driven antibiotic degradation has gained interest in the last few years, strongly relying in semiconductor photocatalysts. To improve the semiconductor properties (i.e., efficiency, recovery, bandgap width, dispersibility, wavelength excitation, etc.), bio-based supporting material as photocatalysts matrices have been thoroughly studied, exploring synergetic effects as operating parameters that could improve the photodegradation of antibiotics. The present work describes some of the most relevant advances of the last 5 years on photodegradation of antibiotics and other antimicrobial molecules. It presents the conjugation of semiconductor photocatalysts to different organic scaffolds (biochar and biopolymers), then to describe hybrid systems based on g-C3N4 and finally addressing the emerging use of organic photocatalysts. These systems were developed for the degradation of several antibiotics and antimicrobials, and tested under different conditions, which are analyzed and thoroughly discussed along the work.
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Affiliation(s)
- Nidia Maldonado-Carmona
- Centre National de la Recherche Scientifique, Laboratoire Jean Perrin, Sorbonne Université, Paris, France.
| | - Giusi Piccirillo
- Department of Chemistry, CQC-IMS, Rua Larga, University of Coimbra, 3004-535, Coimbra, Portugal
| | - Jérémy Godard
- Univ. Limoges, LABCiS, UR 22722, 87000, Limoges, France
| | - Karine Heuzé
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255, 33400, Talence, France
| | - Emilie Genin
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255, 33400, Talence, France
| | | | - Mário J F Calvete
- Department of Chemistry, CQC-IMS, Rua Larga, University of Coimbra, 3004-535, Coimbra, Portugal
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12
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Wang X, Wu L, Ma J. Sodium carbonate/biochar-supported sodium alginate-modified nano zero-valent iron for complete adsorption and degradation of tetracycline in aqueous solution. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:3641-3655. [PMID: 38085486 DOI: 10.1007/s11356-023-31273-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 11/23/2023] [Indexed: 01/19/2024]
Abstract
The aggregation of nanoscale zero-valent iron (NZVI) is one of the biggest challenges for its application when treating contaminants in aquatic environment. We report a study on synthesis of sodium carbonate-modified biochar (BC-600) combined with sodium alginate (SA)-modified NZVI (SA/NZVI@BC-600) for the removal of tetracycline (TC). When the initial concentration of TC was 20 mg/L, 100% TC was removed by SA/NZVI@BC-600 at an initial pH of 7 under room temperature of 25 °C within 90 min. In addition, the reactivity of the SA/NZVI@BC-600 composites toward TC removal was not obviously declined after 4 cycles. SA/NZVI@BC-600 shows high reactivity, stability, and reusability. This excellent performance of SA/NZVI@BC-600 was related to the addition of SA and BC-600. The best performance of the SA/NZVI@BC-600 system was observed under weakly acidic and neutral conditions. Increasing the initial concentration and lowering the reaction temperature had a slight negative effect on the removal of TC by SA/NZVI@BC-600. In addition, the presence of CO32- and HCO3- had a significant negative effect on the degradation of TC. Meanwhile, ·OH and ·O2- played the leading role in TC degradation. This study not only reported a novel strategy of synthesizing an excellent BC modified NZVI based catalyst but also evaluated its promising application for antibiotic degradation in aqueous solution.
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Affiliation(s)
- Xiangyu Wang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China.
| | - Lan Wu
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China
| | - Jun Ma
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China
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13
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Guo H, Qin Q, Chang JS, Lee DJ. Modified alginate materials for wastewater treatment: Application prospects. BIORESOURCE TECHNOLOGY 2023; 387:129639. [PMID: 37549712 DOI: 10.1016/j.biortech.2023.129639] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Revised: 08/03/2023] [Accepted: 08/04/2023] [Indexed: 08/09/2023]
Abstract
Sodium alginate is a natural macromolecule widely used because of its abundance, low cost of acquisition, and rich hydroxyl and carboxyl groups in the matrix. The physical modification of sodium alginate can be made by blending it with polymer materials. The so-yielded alginate complex is commonly unstable in an aqueous environment due to alginate backbones' high hydrophilicity. The chemical modification can remove its hydrophilic groups and introduce special functional groups or polymers onto the alginate backbones to provide excess reaction sites for specific reactions and effective complexation sites for accommodating antibiotics, dyes, heavy metal ions, and radioactive elements. Sodium alginate has been used in water treatment engineering under revised modification protocols. This article also reviews the latest modification protocols for sodium alginate and outlines the novel application of the modified materials. The limitations of modified sodium alginate materials are described, and research prospects are put forward.
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Affiliation(s)
- Hongliang Guo
- College of Forestry, Northeast Forestry University, Harbin 150040, China
| | - Qing Qin
- College of Forestry, Northeast Forestry University, Harbin 150040, China
| | - Jo-Shu Chang
- Research Center for Smart Sustainable Circular Economy, Tunghai University, Taichung 407, Taiwan; Department of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan; Department of Chemical and Materials Engineering, Tunghai University, Taichung 407, Taiwan
| | - Duu-Jong Lee
- Department of Mechanical Engineering, City University of Hong Kong, Kowloon Tong, Hong Kong; Department of Chemical Engineering & Materials Sci., Yuan Ze University, Chung-li 32003, Taiwan.
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14
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Sawut A, Wu T, Simayi R, Jiao X, Feng Y. Preparation and Photocatalytic Performance of Sodium Alginate/Polyacrylamide/Polypyrrole-TiO 2 Nanocomposite Hydrogels. Polymers (Basel) 2023; 15:4174. [PMID: 37896418 PMCID: PMC10610930 DOI: 10.3390/polym15204174] [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: 09/19/2023] [Revised: 10/09/2023] [Accepted: 10/16/2023] [Indexed: 10/29/2023] Open
Abstract
The application of photocatalysis technology in environmental pollution treatment has garnered increasing attention, and enhancing the photocatalytic efficiency and recyclability of photocatalysts represents a pivotal research focus for future endeavors. In this paper, polypyrrole titanium dioxide nanocomposite (PPy-TiO2) was prepared using in situ polymerization method and dispersed in sodium alginate/polyacrylamide (SA/PAM) hydrogel matrix to prepare SA/PAM/PPy-TiO2 nanocomposite hydrogels. The nanocomposite hydrogels were characterized by XPS, FT-IR, XRD, TGA, SEM, and TEM. The results showed that the composite materials were successfully prepared and PPy-TiO2 was uniformly dispersed in the hydrogel matrix. The incorporation of PPy in the SA/PAM/TiO2 composite hydrogel resulted in enhanced visible light absorption, reduced recombination efficiency of photoelectron-hole pairs in TiO2, and facilitated the photocatalytic degradation of methylene blue (MB) and methyl orange (MO) under sunlight irradiation. The photocatalytic efficiency of the composite hydrogel for MB was nearly 100%, whereas for MO, it reached 91.85% after exposure to sunlight for 120 min. In comparison with nano-TiO2 and PPy-TiO2, the SA/PAM/PPy-TiO2 nanocomposite hydrogel exhibited a higher degradation rate of MB and demonstrated ease in separation and recovery from the reaction solution. Furthermore, even after undergoing five cycles of recycling, there was no significant decrease observed in photodegradation efficiency.
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Affiliation(s)
| | | | - Rena Simayi
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, China; (T.W.); (X.J.); (Y.F.)
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Jha AK, Chakraborty S. Environmental Application of Graphene and Its Forms for Wastewater Treatment: a Sustainable Solution Toward Improved Public Health. Appl Biochem Biotechnol 2023; 195:6392-6420. [PMID: 36867385 DOI: 10.1007/s12010-023-04381-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/16/2023] [Indexed: 03/04/2023]
Abstract
Public health is seriously jeopardized in developing countries due to poor sanitation and the presence of persistent pollutants in natural water bodies. Open dumping, wastewater discharge without proper treatment and atmospheric fallout of the organic and inorganic pollutants are the main causes behind the poor condition. Some of the pollutants pose a greater risk due to their toxicity and persistence. Such a class of pollutants are known as chemical contaminants of emerging concern (CECC), including antibiotics and drug residues, endocrine disruptors, pesticides and micro- and nano-plastics. Conventional treatment methods cannot treat them properly and are often associated with several disadvantages. However, the chronological development of techniques and materials for their treatment has exhibited graphene as an efficient candidate for environmental remediation. This current review considers the various graphene-based materials, their properties, advancement in synthesis methods with time and their detailed application in removing dyes, antibiotics and heavy metals. It has been discussed how graphene and its derivatives exhibit unique electronic, mechanical, structural and thermal properties. In this paper, the mechanism of adsorption and degradation using these graphene-based materials has also been discussed vividly. In addition to this, a bibliographic analysis was performed to identify the trend of research related to graphene and its derivatives in the adsorption and degradation of pollutants round the globe reflected by the publications. Therefore, this review can be instrumental in understanding the fact that further development of graphene-based materials and their mass production can provide a very effective and economical wastewater treatment method.
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Affiliation(s)
- Aditya Kumar Jha
- Department of Civil and Environmental Engineering, Birla Institute of Technology, Mesra, Ranchi, 835215, India
| | - Sukalyan Chakraborty
- Department of Civil and Environmental Engineering, Birla Institute of Technology, Mesra, Ranchi, 835215, India.
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16
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Fang X, Feng C, Li T, Wang Y, Zhu S, Ren H, Huang H. g-C 3N 4/polyvinyl alcohol-sodium alginate aerogel for removal of typical heterocyclic drugs from water. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 319:121057. [PMID: 36634858 DOI: 10.1016/j.envpol.2023.121057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 12/20/2022] [Accepted: 01/08/2023] [Indexed: 06/17/2023]
Abstract
Heterocyclic drugs (HCDs) detected at high frequencies in wastewater have raised great concerns and their advanced removal has been the hotspot for safe water reuse in recent years. Two-dimensional graphitic carbon nitride (g-C3N4) and its photocatalytic systems are increasingly emerging, however, there are inevitable drawbacks of stacking and difficulty in recycling, resulting in decreased pollutant removal and limited application. Herein, for the first time, this paper reported a three-dimensional g-C3N4/polyvinyl alcohol-sodium alginate aerogel (g-C3N4/PVA-SA aerogel) photocatalyst synthesized by ultrasonic exfoliation and in-situ polymerization for typical HCDs (sulfadiazine (SDZ), sulfamethoxazole (SMX), and carbamazepine (CBZ)) removal in water. The reduced stacking of g-C3N4 dispersed in PVA-SA aerogel was achieved as revealed by scanning electron microscopy (SEM) and X-ray diffractometer (XRD) analysis, and g-C3N4/PVA-SA aerogel was observed to possess encouraging degradation efficiencies and rates for SDZ (100%, 0.0249 min-1), SMX (100%, 0.1762 min-1) and CBZ (69.8%, 0.0056 min-1), which were improved by 50%-60% and 133%-216% compared to those of g-C3N4, respectively. Meanwhile, environmental impact factors such as pH and coexisting ions had less impact on the degradation of SDZ and SMX by g-C3N4/PVA-SA aerogel. The novel aerogel also had a good recyclability, with less than 5% reduction in degradation efficiency after five cycles observed. The photodegradation of SDZ, SMX and CBZ was confirmed to be driven by ⋅O2- and h+ through scavenger-quenching experiments. The new low carbon and recyclable g-C3N4/PVA-SA aerogel reported in this study indicated a good potential for efficient removal of HCDs from water, which provides an alternative strategy for advanced purification and safe reuse of wastewater.
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Affiliation(s)
- Xiaoya Fang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, Jiangsu, PR China
| | - Chuanzhe Feng
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, Jiangsu, PR China
| | - Tong Li
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, Jiangsu, PR China
| | - Yanru Wang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, Jiangsu, PR China
| | - Shanshan Zhu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, Jiangsu, PR China
| | - Hongqiang Ren
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, Jiangsu, PR China
| | - Hui Huang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, Jiangsu, PR China.
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17
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Guan Y, Wang Z, Bao M, Chen X, Dong L, Shen Y, Li Y. Multi-energies assisted and all-weather recovery of crude oil by superhydrophobic melamine sponge. JOURNAL OF HAZARDOUS MATERIALS 2023; 443:130131. [PMID: 36240586 DOI: 10.1016/j.jhazmat.2022.130131] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 09/26/2022] [Accepted: 10/03/2022] [Indexed: 06/16/2023]
Abstract
Efficient and safe recovery of high-viscosity marine crude oil spills is still a worldwide challenge. High-viscosity crude oil is difficult to be removed by traditional adsorbent materials. Although some recent developments in photothermal or electric-thermal oil-absorbing materials, the vertical heat transfer inside and the potential hazard of electrical leakage are difficult to be guaranteed. In order to overcome these problems, we polymerized dopamine (DA) in situ on the skeleton surface of the commercial melamine sponge (MS), and further coated the full-wavelength light-absorbing Fe3O4 NPs-Graphene (HF-G) on it to obtain the superhydrophobic sponge with excellent photothermal conversion effect, heat conductivity and magnetic heating capabilities (HF-G/PDA@MS). When the thickness of sponge is 5 mm, the HF-G/PDA@MS shows excellent vertical heat conductivity ability, and can absorb about 80 g/g. It also can be combined with an extra electric-heating device to achieve continuous heating to reduce the viscosity and recover crude oil at night or extreme weather. In addition, the temperature of HF-G/PDA@MS can reach about 40 °C by electromagnetic induction heater, indicating that we can use multiple energies-assisted modes to heat the HF-G/PDA@MS to. This work provides a promising solution and theoretical support for all-weather solving offshore crude oil spills pollution and recovery.
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Affiliation(s)
- Yihao Guan
- Frontiers Science Center for Deep Ocean Multispheres and Earth System/Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, 266100, Qingdao, PR China; College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, PR China
| | - Zhining Wang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan 250100, PR China
| | - Mutai Bao
- Frontiers Science Center for Deep Ocean Multispheres and Earth System/Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, 266100, Qingdao, PR China; College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, PR China
| | - Xiuping Chen
- Frontiers Science Center for Deep Ocean Multispheres and Earth System/Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, 266100, Qingdao, PR China; College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, PR China
| | - Limei Dong
- Frontiers Science Center for Deep Ocean Multispheres and Earth System/Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, 266100, Qingdao, PR China; College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, PR China
| | - Yun Shen
- Frontiers Science Center for Deep Ocean Multispheres and Earth System/Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, 266100, Qingdao, PR China; College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, PR China
| | - Yiming Li
- Frontiers Science Center for Deep Ocean Multispheres and Earth System/Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, 266100, Qingdao, PR China; College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, PR China.
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18
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Musial J, Mlynarczyk DT, Stanisz BJ. Photocatalytic degradation of sulfamethoxazole using TiO 2-based materials - Perspectives for the development of a sustainable water treatment technology. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 856:159122. [PMID: 36183772 DOI: 10.1016/j.scitotenv.2022.159122] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Revised: 09/11/2022] [Accepted: 09/25/2022] [Indexed: 06/16/2023]
Abstract
Heterogeneous photocatalysis using titanium dioxide-based materials is considered a promising and innovative solution to the water pollution problem. However, due to the limitations concerning the use of the developed materials and the applied photodegradation conditions, the research on photoremediation using TiO2 often stays behind the lab door. The challenge is to convert the basic research into a successful innovation, leading to the implementation of this process into wastewater treatment. For this purpose, the most active materials and optimal photodegradation conditions must be chosen. This article collects and compares the studies on photocatalytic degradation of an emerging pollutant - sulfamethoxazole, an antibacterial drug - and attempts to find the best approaches to be successfully applied on an industrial scale. Various types of TiO2-based photocatalysts are compared, including different nanoforms, doped or polymer-based composites, composites with graphene, activated carbon, dyes or natural compounds, as well as possible supporting materials for TiO2. The paper covers the impact of the irradiation source (natural sunlight, LED, mercury or xenon lamps) and water matrix on the photodegradation process, considering the ecological and economic sustainability of the process. Emphasis is put on the stability, ease of separation and reuse of the photocatalyst, power and safety of the irradiation source, identification of photodegradation intermediates and toxicity assays. The main approaches are critically discussed, main challenges and perspectives for an effective photocatalytic water treatment technology are pointed out.
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Affiliation(s)
- Joanna Musial
- Chair and Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Poznan University of Medical Sciences, Grunwaldzka 6, 60-780 Poznań, Poland
| | - Dariusz T Mlynarczyk
- Chair and Department of Chemical Technology of Drugs, Faculty of Pharmacy, Poznan University of Medical Sciences, Grunwaldzka 6, 60-780 Poznań, Poland
| | - Beata J Stanisz
- Chair and Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Poznan University of Medical Sciences, Grunwaldzka 6, 60-780 Poznań, Poland.
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19
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Calcium-based catalyst for ozone catalytic oxidation for advanced treatment of high salt organic wastewater. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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20
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Kumar S, Sharma R, Gupta A, Dubey KK, Khan AM, Singhal R, Kumar R, Bharti A, Singh P, Kant R, Kumar V. TiO 2 based Photocatalysis membranes: An efficient strategy for pharmaceutical mineralization. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 845:157221. [PMID: 35809739 DOI: 10.1016/j.scitotenv.2022.157221] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 06/15/2022] [Accepted: 07/04/2022] [Indexed: 06/15/2023]
Abstract
Among the various emerging contaminants, pharmaceuticals (PhACs) seem to have adverse effects on the quality of water. Even the smallest concentration of PhACs in ground water and drinking water is harmful to humans and aquatic species. Among all the deaths reported due to COVID-19, the mortality rate was higher for those patients who consumed antibiotics. Consequently, PhAC in water is a serious concern and their removal needs immediate attention. This study has focused on the PhACs' degradation by collaborating photocatalysis with membrane filtration. TiO2-based photocatalytic membrane is an innovative strategy which demonstrates mineralization of PhACs as a safer option. To highlight the same, an emphasis on the preparation and reinforcing properties of TiO2-based nanomembranes has been elaborated in this review. Further, mineralization of antibiotics or cytostatic compounds and their degradation mechanisms is also highlighted using TiO2 assisted membrane photocatalysis. Experimental reactor configurations have been discussed for commercial implementation of photoreactors for PhAC degradation anchored photocatalytic nanomembranes. Challenges and future perspectives are emphasized in order to design a nanomembrane based prototype in future for wastewater management.
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Affiliation(s)
- Sanjeev Kumar
- Department of Chemistry, University of Delhi, Delhi, India; Department of Chemistry, Kirori Mal College, University of Delhi, India
| | - Ritika Sharma
- Department of Biochemistry, University of Delhi, Delhi, India
| | - Akanksha Gupta
- Department of Chemistry, Sri Venkateswara College, University of Delhi, India.
| | | | - A M Khan
- Department of Chemistry, Motilal Nehru College, India
| | - Rahul Singhal
- Department of Chemistry, Shivaji College, Delhi, India
| | - Ravinder Kumar
- Department of Chemistry, Gurukula Kangri (Deemed to be University), Haridwar, Uttarakhand, India
| | - Akhilesh Bharti
- Department of Chemistry, Kirori Mal College, University of Delhi, India
| | - Prashant Singh
- Department of Chemistry, Atma Ram Sanatan Dharma College, Delhi, India
| | - Ravi Kant
- Department of Chemistry, Zakir Hussain Delhi College, Delhi, India
| | - Vinod Kumar
- Special Centre for Nano Sciences, Jawaharlal Nehru University, Delhi, India.
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21
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Akash S, Sivaprakash B, Rajamohan N, Govarthanan M, Elakiya BT. Remediation of pharmaceutical pollutants using graphene-based materials - A review on operating conditions, mechanism and toxicology. CHEMOSPHERE 2022; 306:135520. [PMID: 35780979 DOI: 10.1016/j.chemosphere.2022.135520] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 06/04/2022] [Accepted: 06/25/2022] [Indexed: 06/15/2023]
Abstract
Graphene is a high surface area special carbon compound with exceptional biological, electronic and mechanical properties. Graphene-based materials are potential components used in water treatment on different modes and processes. Ibuprofen and ciprofloxacin are two commonly found pharmaceutical contaminants discharged into water bodies from industrial, domestic and hospital sources. Their concentration levels in water bodies are reported in the range of 1 μg/L to 6.5 mg/L and 0.050-100 μg/L respectively. Their toxic effects pose very high risk to the inhabiting organisms. Their ability to resist biodegradation and capacity to bioaccumulate makes the conventional methods less effective in removal. In the present article, treatment of these compounds via three methods, adsorption, photocatalytic degradation and electro-fenton reactions using graphene-based materials along with the methods adopted for synthesis and treatment are reviewed. The uptakes obtained by graphene-derived adsorbents are presented along with the optimal operating conditions. Studies reported complete removal of ibuprofen from wastewater was achieved at 7 pH for 60 min using graphene membrane as adsorbent and uptake of 99% of ciprofloxacin was exhibited for graphene nanoplates/boron nitrate aerogel at a pH of 7 and 60 min. The reduced graphene oxide surface exhibits higher affinity to light adsorption which leads to the formation of photo generated electrons. The future perspectives for improved applications of graphene-based materials and the research gap currently existing are highlighted.
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Affiliation(s)
- S Akash
- Department of Chemical Engineering, Annamalai University, Annamalai Nagar, PC-608002, India
| | - Baskaran Sivaprakash
- Department of Chemical Engineering, Annamalai University, Annamalai Nagar, PC-608002, India
| | - Natarajan Rajamohan
- Chemical Engineering Section, Faculty of Engineering, Sohar University, Sohar, PC-311, Oman.
| | - Muthusamy Govarthanan
- Department of Environmental Engineering, Kyungpook National University, Daegu, South Korea; Department of Biomaterials, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences, Chennai, 600 077, India
| | - B Tamil Elakiya
- Department of Chemical Engineering, Annamalai University, Annamalai Nagar, PC-608002, India
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22
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Naseem K, Tahir MH, Farooqi F, Manzoor S, Khan SU. Strategies adopted for the preparation of sodium alginate–based nanocomposites and their role as catalytic, antibacterial, and antifungal agents. REV CHEM ENG 2022. [DOI: 10.1515/revce-2022-0016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Alginate extracted from the marine brown algae is a massively utilized biopolymer in multiple fields such as microreactors for the fabrication of metal nanoparticles along with other polymeric and nonpolymeric materials to enhance their mechanical strength. These sodium alginate (Na-Alg)-based fabricated nanocomposites find applications in the field of catalysis and biological treatment as antibacterial/antifungal agent due to the synergistic properties of Na-Alg and fabricated metal nanoparticles (NPs). Na-Alg offers mechanical strength and nanoparticles provide high reactivity due to their small size. Sodium alginate exhibits hydroxyl and carboxylate functional groups that can easily interact with the metal nanoparticles to form composite particles. The research on the preparation of Na-Alg–based nanoparticles and nanoaggregates have been started recently but developed quickly due to their extensive applications in different fields. This review article encircles different methods of preparation of sodium alginate–based metal nanocomposites; analytical techniques reported to monitor the formation of these nanocomposites and used to characterize these nanocomposites as well as applications of these nanocomposites as catalyst, antibacterial, and antifungal agent.
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Affiliation(s)
- Khalida Naseem
- Department of Basic and Applied Chemistry , Faculty of Science and Technology, University of Central Punjab , Lahore 54000 , Pakistan
| | - Mudassir Hussain Tahir
- Department of Chemistry, Division of Sciences and Technology , University of Education , Lahore 54000 , Pakistan
- Bonn-Rhein-Sieg University of Applied Sciences , Von-Liebig-Str. 20 , D-53359 Rheinbach , Germany
| | - Fatima Farooqi
- Department of Basic and Applied Chemistry , Faculty of Science and Technology, University of Central Punjab , Lahore 54000 , Pakistan
| | - Suryyia Manzoor
- Institute of Chemical Sciences, Bahauddin Zakayria University , Multan 60800 , Pakistan
| | - Saba Urooge Khan
- Institute of Polymer and Textile Engineering, University of the Punjab , Lahore 54590 , Pakistan
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Kumar R, Oves M, Ansari MO, Taleb MA, Baraka MAEF, Alghamdi MA, Makishah NHA. Biopolymeric Ni 3S 4/Ag 2S/TiO 2/Calcium Alginate Aerogel for the Decontamination of Pharmaceutical Drug and Microbial Pollutants from Wastewater. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3642. [PMID: 36296832 PMCID: PMC9609712 DOI: 10.3390/nano12203642] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 10/04/2022] [Accepted: 10/13/2022] [Indexed: 06/16/2023]
Abstract
The ubiquitous presence of pharmaceutical drugs and microbes in the water is leading to the development of drug resistant microbes. Therefore, efficient materials that can remove or inactivate the drug and microbe contaminants are required. In this work, nickel sulfide/calcium alginate (Ni3S4/CA), silver sulfide/calcium alginate (Ag2S/CA), modified titanium dioxide/calcium alginate (TiO2/CA), and Ni3S4/Ag2S/TiO2/calcium alginate (Ni3S4/Ag2S/TiO2/CA) aerogels have been synthesized for the removal of the oxytetracycline (OTC) drug and microbial contaminants from real beverage industry wastewater. The results revealed that Ni3S4/Ag2S/TiO2/CA aerogel is highly efficient for OTC adsorption and inactivation of microbes compared to Ni3S4/CA, Ag2S/CA and TiO2/CA aerogels. The OTC adsorption depends greatly on the solution pH, and optimum OTC removal was observed at pH 6 in its zwitterionic (OTC±) form. The formation of H-bonding and n-π electron donor-acceptors is possible to a considerable extent due to the presence of the double bond benzene ring, oxygen and nitrogen, sulfur-containing functional groups on the OTC molecules, and the Ni3S4/Ag2S/TiO2/CA aerogel. Based on the statistical analysis, root-mean-square deviation (RMSD), chi square (χ2) values, and higher correlation coefficient (R2) values, the Redlich−Peterson isotherm model and Elovich kinetic model are most suited to modelling the OTC adsorption onto Ni3S4/Ag2S/TiO2/CA. The prepared aerogels’ excellent antimicrobial activity is observed in the dark and with solar light irradiation. The zone of inhibition analysis revealed that the antimicrobial activity of the aerogels is in the following order: Ni3S4/Ag2S/TiO2/CA > TiO2/CA > Ag2S/CA > Ni3S4/CA, respectively. Moreover, the antimicrobial results demonstrated that reactive oxygen species, electrons, and active radical species are responsible for growth inhibition and killing of the microbes. These results indicated that Ni3S4/Ag2S/TiO2/CA aerogel is highly efficient in decontaminating pollutants from wastewater.
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Affiliation(s)
- Rajeev Kumar
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Mohammad Oves
- Central of Excellence in Environmental Studies, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | | | - Md. Abu Taleb
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Mohamed Abou El-Fetouh Baraka
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Mansour A. Alghamdi
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Naief Hamoud Al Makishah
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah 21589, Saudi Arabia
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Esquivel-Castro TA, Martínez-Luévanos A, Cabrera AR, García-Cerda LA, Esparza-González SC, Ibarra-Alonso MC, Estrada-Flores S. ZrO2 aerogels as drugs delivery platforms: Synthesis, cytotoxicity, and diclofenac delivery. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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25
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Yang P, Yu F, Yang Z, Zhang X, Ma J. Graphene oxide modified κ-carrageenan/sodium alginate double-network hydrogel for effective adsorption of antibiotics in a batch and fixed-bed column system. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 837:155662. [PMID: 35525355 DOI: 10.1016/j.scitotenv.2022.155662] [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: 02/23/2022] [Revised: 04/22/2022] [Accepted: 04/28/2022] [Indexed: 06/14/2023]
Abstract
The treatment of antibiotic wastewater pollution is imminent, the studies of double-network hydrogels as adsorbents have gradually increased, it is quite important to develop a non-toxic hydrogel with excellent properties as adsorbent. In this study, a graphene oxide modified κ-carrageenan/sodium alginate (GO-κ-car/SA) gel was prepared by calcium hardening. The addition of GO nanosheets enhances the mechanical strength and anti-swelling property of the double-network hydrogel, making it possible for the application in the fixed-bed column system. The elastic modulus is twice as much as the hydrogel without GO. The maximum adsorption capacity in the experiments of the GO-κ-car/SA gel for CIP and OFL can reach 272.18 mg g-1 and 197.39 mg g-1, respectively. The GO-κ-car/SA gel always remains negatively charged, which means that the adsorption capacity of the gel is better in an acidic environment. In the fixed-bed column system, through Thomas fitting, the maximum adsorption capacity of the simulated OFL wastewater (200 mg L-1) is 83.99 mg g-1. The adsorption mechanism of antibiotics by GO-κ-car/SA gel depends on hydrogen bond, functional groups and electrostatic adsorption. The good hydrophilic properties, excellent adsorption capacity and high mechanical strength, which can ensure that the adsorbent is in full contact with the contaminants without major deformation or damage, makes the study more helpful for the further study on hydrogel in the fixed-bed column system.
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Affiliation(s)
- Peiyu Yang
- College of Marine Ecology and Environment, Shanghai Ocean University, No 999, Huchenghuan Road, Shanghai 201306, PR China.
| | - Fei Yu
- College of Marine Ecology and Environment, Shanghai Ocean University, No 999, Huchenghuan Road, Shanghai 201306, PR China; Shanghai Engineering Research Center of Solid Waste Treatment and Resource Recovery, Shanghai Jiao Tong University, Shanghai 200240, PR China.
| | - Zhengqu Yang
- College of Marine Ecology and Environment, Shanghai Ocean University, No 999, Huchenghuan Road, Shanghai 201306, PR China.
| | - Xiaochen Zhang
- College of Marine Ecology and Environment, Shanghai Ocean University, No 999, Huchenghuan Road, Shanghai 201306, PR China.
| | - Jie Ma
- Shanghai Engineering Research Center of Solid Waste Treatment and Resource Recovery, Shanghai Jiao Tong University, Shanghai 200240, PR China; Research Center for Environmental Functional Materials, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, PR China.
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Simultaneously photocatalytic removal of Cr(VI) and metronidazole by asynchronous cross-linked modified sodium alginate. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.09.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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27
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Rivas-Sanchez A, Cruz-Cruz A, Gallareta-Olivares G, González-González RB, Parra-Saldívar R, Iqbal HMN. Carbon-based nanocomposite materials with multifunctional attributes for environmental remediation of emerging pollutants. CHEMOSPHERE 2022; 303:135054. [PMID: 35613636 DOI: 10.1016/j.chemosphere.2022.135054] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 05/02/2022] [Accepted: 05/19/2022] [Indexed: 05/27/2023]
Abstract
Carbon-based materials are among the most biosynthesized nanocomposites with excellent tunability and multifunctionality features, that other materials fail to demonstrate. Naturally occurring materials, such as alginate (Alg), can be combined and modified by linking the active moieties of various carbon-based materials of interest, such as graphene oxide (GO), carbon nanotubes (CNTs), and mesoporous silica nanocomposite (MSN), among others. Thus, several types of robust nanocomposites have been fabricated and deployed for environmental remediation of emerging pollutants, such as pharmaceutical compounds, toxic dyes, and other environmentally hazardous contaminants of emerging concern. Considering the above critiques and added features of carbon-based nanocomposites, herein, an effort has been made to spotlight the synergies of GO, CNTs, and MSN with Alg and their role in mitigating emerging pollutants. From the information presented in this work, it can be concluded that Alg is a material that has excellent potential. However, its use still requires further tests in different areas and other materials to carry out a holistic investigation that exploits its versatility for environmental remediation purposes.
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Affiliation(s)
- Andrea Rivas-Sanchez
- Tecnologico de Monterrey, School of Engineering and Sciences, Monterrey, 64849, Mexico
| | - Angelica Cruz-Cruz
- Tecnologico de Monterrey, School of Engineering and Sciences, Monterrey, 64849, Mexico
| | | | | | | | - Hafiz M N Iqbal
- Tecnologico de Monterrey, School of Engineering and Sciences, Monterrey, 64849, Mexico.
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Improving the catalytic and mechanical performance of alginate catalyst through functionalization by aminopolycarboxylic acids. J Colloid Interface Sci 2022; 628:1058-1066. [DOI: 10.1016/j.jcis.2022.07.181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 07/23/2022] [Accepted: 07/29/2022] [Indexed: 11/19/2022]
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Liu W, Wang Y, Qi K, Wen F, Wang J. Broad Spectral Response Z-Scheme Three-Dimensional Ordered Macroporous Carbon Quantum Dots/TiO 2/g-C 3N 4 Composite for Boosting Photocatalysis. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:4839-4847. [PMID: 35420818 DOI: 10.1021/acs.langmuir.1c03483] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Photocatalytic degradation technology is one of the effective protocols to solve environmental problems. TiO2 has always been favored for its photostability and low cost. However, the insufficient photocatalytic activity of TiO2 limits its application due to the severe recombination of photogenerated electrons and holes and a narrow light response range. Therefore, 3DTCN, a TiO2/g-C3N4 composite with a three-dimensional ordered macroporous structure was prepared by a colloidal crystal template technique to form a heterojunction for inhibiting the photogenerated electron-hole recombination. On 3DTCN, carbon quantum dots (CQDs) were loaded by impregnation to obtain x % CQDs/3DTCN with a broad spectral response to light. The physical and chemical properties of samples were investigated by X-ray diffraction, scanning electron microscopy, transmission electron microscopy (TEM), high-resolution-TEM, energy-dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, Brunauer-Emmett-Teller analysis, photoluminescence spectroscopy, and ultraviolet-visible diffuse reflectance spectroscopy. The photocatalytic activity was evaluated via degrading the rhodamine B (RhB) dye, and the degradation efficiency of 1% CQDs/3DTCN (98%) was found to be much higher than that of 3DTCN (42%) in 80 min under simulated sunlight irradiation. Furthermore, it also possessed excellent durability. Meanwhile, the sample also showed an outstanding photoelectric property. Finally, the proposed mechanism of the composites had been mainly analyzed by density functional theory calculations. This work thus provides an idea to form a 3D structure heterojunction and further improve the photocatalytic activity.
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Affiliation(s)
- Wenliang Liu
- College of Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, China
| | - Yan Wang
- College of Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, China
| | - Kai Qi
- College of Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, China
| | - Fushan Wen
- College of Materials Science and Engineering, China University of Petroleum (East China), Qingdao 266580, China
| | - Jiqian Wang
- College of Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, China
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30
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Hu J, Chen F, Mu K, Zhang J, Lu J. Enhanced photocatalytic O2 activation by the synergy of efficient oxygen adsorption and interfacial charge separation: A case of Bi3O4Br/rGO van der Waals heterojunction. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120416] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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31
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Sruthi L, Janani B, Sudheer Khan S. Ibuprofen removal from aqueous solution via light-harvesting photocatalysis by nano-heterojunctions: A review. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119709] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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32
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Liu C, Wei H, Gao Y, Wang N, Yuan X, Chi Z, Zhao G, Song S, Song J, Jin X. Application of CoMn/CoFe layered double hydroxide based on metal-organic frameworks template to activate peroxymonosulfate for 2,4-dichlorophenol degradation. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2021; 84:3871-3890. [PMID: 34928849 DOI: 10.2166/wst.2021.482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Metal-organic frameworks (MOFs) have unique properties and stable structures, which have been widely used as templates/precursors to prepare well developed pore structure and high specific surface area materials. In this article, an innovative and facile method of crystal reorganization was designed by using MOFs as sacrificial templates to prepare a layered double hydroxide (LDH) nano-layer sheet structure through a pseudomorphic conversion process under alkaline conditions. The obtained CoMn-LDH and CoFe-LDH catalysts broke the ligand of MOFs and reorganized the structure on the basis of retaining a high specific surface area and a large number of pores, which had higher specific surface area and well developed pore structure compared with LDH catalysts prepared by traditional methods, and thus provide more active sites to activate peroxymonosulfate (PMS). Due to the unique framework structure of MOFs, the MOF-derived CoMn-LDH and CoFe-LDH catalysts could provide more active sites to activate PMS, and achieve a 2,4-dichlorophenol degradation of 99.3% and 99.2% within 20 minutes, respectively. In addition the two LDH catalysts displayed excellent degradation performance for bisphenol A, ciprofloxacin and 2,4-dichlorophenoxyacetic acid (2,4-D). X-ray photoelectron spectroscopy indicated that the valence state transformation of metal elements participated in PMS activation. Electron paramagnetic resonance manifested that sulfate radical (SO4•-) and singlet oxygen (1O2) were the main species for degrading pollutants. In addition, after the three-cycle experiment, the CoMn-LDH and CoFe-LDH catalysts also showed long-term stability with a slight activity decrease in the third cycle. The phytotoxicity assessment determined by the germination of mung beans proved that PMS activation by MOF-derived LDH catalysts can basically eliminate the phytotoxicity of a 2,4-D solution. This research not only developed high-activity LDH catalysts for PMS activation, but also expanded the environmental applications of MOF derivants.
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Affiliation(s)
- Chenyu Liu
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China E-mail:
| | - Haitong Wei
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China E-mail:
| | - Yanhui Gao
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China E-mail:
| | - Ning Wang
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China E-mail:
| | - Xiaoying Yuan
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China E-mail:
| | - Zhilong Chi
- Kyiv College at Qilu University of Technology, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China; Kyiv National University of Technologies and Design, Kyiv 01011, Ukraine
| | - Guangli Zhao
- Kyiv College at Qilu University of Technology, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China; Kyiv National University of Technologies and Design, Kyiv 01011, Ukraine
| | - Shuguang Song
- School of Transportation Engineering, Shandong Jianzhu University, Jinan 250101, China
| | - Jianjun Song
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China E-mail:
| | - Xinghui Jin
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China E-mail:
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Chen CH, Lin YC, Peng YP, Lin MH. Simultaneous hydrogen production and ibuprofen degradation by green synthesized Cu 2O/TNTAs photoanode. CHEMOSPHERE 2021; 284:131360. [PMID: 34217925 DOI: 10.1016/j.chemosphere.2021.131360] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 06/17/2021] [Accepted: 06/26/2021] [Indexed: 06/13/2023]
Abstract
This study aimed to produce a clean energy, hydrogen, and to remove pollutants simultaneously in water by photoelectrochemical (PEC) method. The photo-anode of cuprous oxide modified titanate nanotube arrays (Cu2O/TNTAs) was synthesized by using lactic acid, green tea, and coffee as reductants individually. The characterizations of Cu2O/TNTAs were performed by ultraviolet-visible diffuse reflectance spectroscopy (UV-vis DRS), field emission scanning electron microscope (FE-SEM), X-ray photoelectron spectroscopy (XPS), and X-ray diffraction (XRD) to investigate the physical and chemical properties such as structure, crystallization, element contents, and optical performance. The electrochemical analyses of Cu2O/TNTAs showed the photo-current of Cu2O/TNTAs-t (using green tea as reductant) was 2.4 times higher than pure TNTAs, illustrating the effective separation of electron-hole pairs after Cu2O modification. The photoelectrochemical performances of Cu2O/TNTAs-t and Cu2O/TNTAs-c (using coffee as the reductant) were better than Cu2O/TNTAs-L (using lactic acid as the reductant) in terms of photo-current density, Ibuprofen degradation, and hydrogen generation, implying that depositing Cu2O on TNTAs can significantly improve the electron mobility by reducing the recombination rate of electron-hole pairs, which is beneficial to simultaneously ibuprofen degradation and hydrogen production.
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Affiliation(s)
- Chia-Hung Chen
- Institute of Environmental Engineering, National Sun Yat-sen University, Kaohsiung, 804, Taiwan
| | - Yi-Ching Lin
- Institute of Environmental Engineering, National Sun Yat-sen University, Kaohsiung, 804, Taiwan
| | - Yen-Ping Peng
- Institute of Environmental Engineering, National Sun Yat-sen University, Kaohsiung, 804, Taiwan.
| | - Ming-Hsun Lin
- Institute of Environmental Engineering, National Sun Yat-sen University, Kaohsiung, 804, Taiwan
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Zhao J, Li B, Liu Z, Dai D, Li Y, Shi R, Zhang H. A novel solar-triggered MIL-125(Ti)/g-C3N4/SA composite aerogel with high catalytic activity for degradation of organic contaminants. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119696] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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35
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Chandra S, Jagdale P, Medha I, Tiwari AK, Bartoli M, Nino AD, Olivito F. Biochar-Supported TiO 2-Based Nanocomposites for the Photocatalytic Degradation of Sulfamethoxazole in Water-A Review. TOXICS 2021; 9:313. [PMID: 34822704 PMCID: PMC8617903 DOI: 10.3390/toxics9110313] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 10/27/2021] [Accepted: 10/29/2021] [Indexed: 12/23/2022]
Abstract
Sulfamethoxazole (SMX) is a frequently used antibiotic for the treatment of urinary tract, respiratory, and intestinal infections and as a supplement in livestock or fishery farming to boost production. The release of SMX into the environment can lead to the development of antibiotic resistance among the microbial community, which can lead to frequent clinical infections. SMX removal from water is usually done through advanced treatment processes, such as adsorption, photocatalytic oxidation, and biodegradation. Among them, the advanced oxidation process using TiO2 and its composites is being widely used. TiO2 is a widely used photocatalyst; however, it has certain limitations, such as low visible light response and quick recombination of e-/h+ pairs. Integrating the biochar with TiO2 nanoparticles can overcome such limitations. The biochar-supported TiO2 composites showed a significant increase in the photocatalytic activities in the UV-visible range, which resulted in a substantial increase in the degradation of SMX in water. The present review has critically reviewed the methods of biochar TiO2 composite synthesis, the effect of biochar integration with the TiO2 on its physicochemical properties, and the chemical pathways through which the biochar/TiO2 composite degrades the SMX in water or aqueous solution. The degradation of SMX using photocatalysis can be considered a useful model, and the research studies presented in this review will allow extending this area of research on other types of similar pharmaceuticals or pollutants in general in the future.
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Affiliation(s)
- Subhash Chandra
- Department of Civil Engineering, Vignan’s Institute of Information Technology (A), Duvvada, Visakhapatnam 530049, India;
| | - Pravin Jagdale
- Center for Sustainable Future Technologies, Italian Institute of Technology, Via Livorno 60, 10144 Torino, Italy; (P.J.); (M.B.)
| | - Isha Medha
- Department of Civil Engineering, Vignan’s Institute of Information Technology (A), Duvvada, Visakhapatnam 530049, India;
- Department of Mining Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Ashwani Kumar Tiwari
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi 110067, India;
| | - Mattia Bartoli
- Center for Sustainable Future Technologies, Italian Institute of Technology, Via Livorno 60, 10144 Torino, Italy; (P.J.); (M.B.)
| | - Antonio De Nino
- Department of Chemistry and Chemical Technologies, University of Calabria, Via P. Bucci, 87036 Rende, Italy;
| | - Fabrizio Olivito
- Department of Chemistry and Chemical Technologies, University of Calabria, Via P. Bucci, 87036 Rende, Italy;
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Akay S, Öztürk S, Kalderis D, Kayan B. Degradation, solubility and chromatographic studies of Ibuprofen under high temperature water conditions. CHEMOSPHERE 2021; 277:130307. [PMID: 33774244 DOI: 10.1016/j.chemosphere.2021.130307] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Revised: 03/08/2021] [Accepted: 03/14/2021] [Indexed: 06/12/2023]
Abstract
Ibuprofen (IBP) is an emerging environmental contaminant having low aqueous solubility which negatively affects the application of advanced oxidation and adsorption processes. It was determined that as the temperature increased to 473 K, the mole fraction solubility increased considerably from 0.02 × 10-3 to 212.88 × 10-3 (10600-fold). Calculation of the thermodynamic properties indicated an endothermic process, ΔsolH > 0, with relatively high ΔsolS values. Spectroscopic, thermal and chromatographic analyses established the IBP stability at subcritical conditions. In the second part of the study, the degradation of IBP in H2O2-modified subcritical was studied and the effect of each process variable was investigated. The optimum degradation of 88% was reached at an IBP concentration of 15 mg L-1, temperature of 250 °C, 105 min treatment time and 250 mM H2O2. The process was optimized by response surface methodology and a mathematical model was proposed and validated. Temperature was determined as the most influential parameter, followed by H2O2 concentration. At temperatures higher than 230 °C, a small but noticeable reduction in degradation % suggested that the OH· radicals are consumed at a higher rate than they are produced, through side reactions with other radicals and/or IBP by-products. Finally, potential by-products were determined by gas chromatographic-mass spectrometric analysis and potential by-products were proposed.
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Affiliation(s)
- Sema Akay
- Department of Chemistry, Arts and Sciences Faculty, Aksaray University, Aksaray, 68100, Turkey
| | - Serpil Öztürk
- Department of Chemistry, Arts and Sciences Faculty, Aksaray University, Aksaray, 68100, Turkey
| | - Dimitrios Kalderis
- Department of Electronic Engineering, Hellenic Mediterranean University, Chania, 73100, Crete, Greece
| | - Berkant Kayan
- Department of Chemistry, Arts and Sciences Faculty, Aksaray University, Aksaray, 68100, Turkey.
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Franco P, Cardea S, Tabernero A, De Marco I. Porous Aerogels and Adsorption of Pollutants from Water and Air: A Review. Molecules 2021; 26:4440. [PMID: 34361593 PMCID: PMC8347855 DOI: 10.3390/molecules26154440] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 07/12/2021] [Accepted: 07/21/2021] [Indexed: 11/22/2022] Open
Abstract
Aerogels are open, three-dimensional, porous materials characterized by outstanding properties, such as low density, high porosity, and high surface area. They have been used in various fields as adsorbents, catalysts, materials for thermal insulation, or matrices for drug delivery. Aerogels have been successfully used for environmental applications to eliminate toxic and harmful substances-such as metal ions or organic dyes-contained in wastewater, and pollutants-including aromatic or oxygenated volatile organic compounds (VOCs)-contained in the air. This updated review on the use of different aerogels-for instance, graphene oxide-, cellulose-, chitosan-, and silica-based aerogels-provides information on their various applications in removing pollutants, the results obtained, and potential future developments.
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Affiliation(s)
- Paola Franco
- Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy; (P.F.); (S.C.)
| | - Stefano Cardea
- Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy; (P.F.); (S.C.)
| | - Antonio Tabernero
- Department of Chemical Engineering, University of Salamanca, Plaza los Caídos s/n, 37008 Salamanca, Spain
| | - Iolanda De Marco
- Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy; (P.F.); (S.C.)
- Research Centre for Biomaterials BIONAM, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy
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Mohammad A, Khan ME, Cho MH, Yoon T. Graphitic‑carbon nitride based mixed-phase bismuth nanostructures: Tuned optical and structural properties with boosted photocatalytic performance for wastewater decontamination under visible-light irradiation. NANOIMPACT 2021; 23:100345. [PMID: 35559846 DOI: 10.1016/j.impact.2021.100345] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Revised: 07/20/2021] [Accepted: 08/02/2021] [Indexed: 06/15/2023]
Abstract
To enhance the activities of advanced semiconductor photocatalysts, the charge carriers must be separated effectively. One strategy for achieving this is the use of heterogeneous structures, which can be prepared by hydrothermal synthesis and post-synthetic thermal and ultrasonic treatment. Herein, we report a mixed-phase composite of basic bismuth nitrate/pentabismuth heptaoxide nitrate (PC) prepared by hydrothermal synthesis under basic conditions and post-synthetic thermal treatment. In addition, sulfur-doped-graphitic carbon nitride (S-g-C3N4) was prepared and combined with PC in different ratios, denoted as PC-1, PC-2, and PC-3, using sonication-assisted treatment. The characterization of these catalysts confirmed the formation of mixed basic bismuth nitrate/pentabismuth heptaoxide nitrate phases and the composite nanostructure. The developed nanostructure showed interesting morphological features, for example, layered sheets of S-g-C3N4. The prepared PCs were tested for their visible light responsiveness for the photocatalytic degradation of a representative organic dye (Rhodamine B). We found that the modified photocatalysts showed superior activity to that of pristine PC. The optimal photocatalyst (PC-3) was also used to degrade methylene blue and Congo red, achieving 99% degradation. Thus, we present not only an efficient photocatalyst but also insights into the post-synthetic modification of basic bismuth nitrate/pentabismuth heptaoxide nitrate with stable carbon-based nanostructures.
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Affiliation(s)
- Akbar Mohammad
- School of Chemical Engineering, Yeungnam University, Gyeongsan-si, Gyeongbuk 38541, South Korea.
| | - Mohammad Ehtisham Khan
- Department of Chemical Engineering Technology, College of Applied Industrial Technology (CAIT), Jazan University, Jazan 45971, Kingdom of Saudi Arabia
| | - Moo Hwan Cho
- School of Chemical Engineering, Yeungnam University, Gyeongsan-si, Gyeongbuk 38541, South Korea
| | - Taeho Yoon
- School of Chemical Engineering, Yeungnam University, Gyeongsan-si, Gyeongbuk 38541, South Korea.
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Fu GB, Xie R, Qin JW, Deng XB, Ju XJ, Wang W, Liu Z, Chu LY. Facile Fabrication of Photocatalyst-Immobilized Gel Beads with Interconnected Macropores for the Efficient Removal of Pollutants in Water. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c00971] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Guo-Bao Fu
- School of Chemical Engineering, Sichuan University, Chengdu 610065 Sichuan, China
| | - Rui Xie
- School of Chemical Engineering, Sichuan University, Chengdu 610065 Sichuan, China
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065 Sichuan, China
| | - Jia-Wang Qin
- School of Chemical Engineering, Sichuan University, Chengdu 610065 Sichuan, China
| | - Xi-Bin Deng
- School of Chemical Engineering, Sichuan University, Chengdu 610065 Sichuan, China
| | - Xiao-Jie Ju
- School of Chemical Engineering, Sichuan University, Chengdu 610065 Sichuan, China
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065 Sichuan, China
| | - Wei Wang
- School of Chemical Engineering, Sichuan University, Chengdu 610065 Sichuan, China
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065 Sichuan, China
| | - Zhuang Liu
- School of Chemical Engineering, Sichuan University, Chengdu 610065 Sichuan, China
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065 Sichuan, China
| | - Liang-Yin Chu
- School of Chemical Engineering, Sichuan University, Chengdu 610065 Sichuan, China
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065 Sichuan, China
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Padmanabhan NT, Thomas N, Louis J, Mathew DT, Ganguly P, John H, Pillai SC. Graphene coupled TiO 2 photocatalysts for environmental applications: A review. CHEMOSPHERE 2021; 271:129506. [PMID: 33445017 DOI: 10.1016/j.chemosphere.2020.129506] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 12/28/2020] [Accepted: 12/29/2020] [Indexed: 05/28/2023]
Abstract
Nanostructured photocatalysts have always offered opportunities to solve issues concerned with the environmental challenges caused by rapid urbanization and industrialization. These materials, due to their tunable physicochemical characteristics, are capable of providing a clean and sustainable ecosystem to humanity. One of the current thriving research focuses of visible-light-driven photocatalysts is on the nanocomposites of titanium dioxide (TiO2) with carbon nanostructures, especially graphene. Coupling TiO2 with graphene has proven more active by photocatalysis than TiO2 alone. It is generally considered that graphene sheets act as an electron acceptor facilitating the transfer and separation of photogenerated electrons during TiO2 excitation, thereby reducing electron-hole recombination. This study briefly reviews the fundamental mechanism and interfacial charge-transfer dynamics in TiO2/graphene nanocomposites. Design strategies of various graphene-based hybrids are highlighted along with some specialized synthetic routes adopted to attain preferred properties. Importantly, the enhancing interfacial charge transfer of photogenerated e¯CB through the graphene layers by morphology orientation of TiO2, predominated exposure of their high energy crystal facets, defect engineering, enhancing catalytic sites in graphene, constructing dedicated architectures, tuning the nanomaterial dimensionality at the interface, and employing the synergism adopted through various modifications, are systematically compiled. Portraying the significance of these photocatalytic hybrids in environmental remediation, important applications including air and water purification, self-cleaning surfaces, H2 production, and CO2 reduction to desired fuels, are addressed.
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Affiliation(s)
- Nisha T Padmanabhan
- Department of Polymer Science and Rubber Technology, Cochin University of Science and Technology, Kerala, India
| | - Nishanth Thomas
- Nanotechnology and Bio-engineering Research Group, Department of Environmental Science, Institute of Technology Sligo, Sligo, Ireland; Centre for Precision Engineering, Materials and Manufacturing Research (PEM), Institute of Technology Sligo, Sligo, Ireland
| | - Jesna Louis
- Department of Polymer Science and Rubber Technology, Cochin University of Science and Technology, Kerala, India; Inter University Centre for Nanomaterials and Devices, Cochin University of Science and Technology, Kerala, India
| | - Dhanu Treasa Mathew
- Department of Polymer Science and Rubber Technology, Cochin University of Science and Technology, Kerala, India
| | - Priyanka Ganguly
- Nanotechnology and Bio-engineering Research Group, Department of Environmental Science, Institute of Technology Sligo, Sligo, Ireland; Centre for Precision Engineering, Materials and Manufacturing Research (PEM), Institute of Technology Sligo, Sligo, Ireland
| | - Honey John
- Department of Polymer Science and Rubber Technology, Cochin University of Science and Technology, Kerala, India; Inter University Centre for Nanomaterials and Devices, Cochin University of Science and Technology, Kerala, India
| | - Suresh C Pillai
- Nanotechnology and Bio-engineering Research Group, Department of Environmental Science, Institute of Technology Sligo, Sligo, Ireland; Centre for Precision Engineering, Materials and Manufacturing Research (PEM), Institute of Technology Sligo, Sligo, Ireland.
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Yu X, Chen H, Ji Q, Chen Y, Wei Y, Zhao N, Yao B. p-Cu 2O/n-ZnO heterojunction thin films with enhanced photoelectrochemical properties and photocatalytic activities for norfloxacin. CHEMOSPHERE 2021; 267:129285. [PMID: 33338717 DOI: 10.1016/j.chemosphere.2020.129285] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 12/06/2020] [Accepted: 12/08/2020] [Indexed: 06/12/2023]
Abstract
A two-step electrochemical deposition technique was applied to fabricate p-Cu2O/n-ZnO heterojunction thin films. The influence of the deposition potential upon photoelectric performance of the prepared samples was examined utilizing XRD, XPS, SEM, UV-Vis, and electrochemical tests. The results show that the deposition potential has a substantial influence on the properties of the prepared samples. When the deposition potential is -0.45 V, the peak intensity of the (111) crystal plane of the prepared heterojunction is the highest, the band gap increased, and the morphology changes obviously compared to those of Cu2O. The transient photocurrent value is three times that of pure Cu2O, and the charge transfer resistance significantly reduced. The p-Cu2O/n-ZnO heterojunction has a high carrier concentration. Photocatalytic degradation experiments show that degradation rate of norfloxacin increases by 14.4%-76.6%. The enhanced photocatalytic performance of Cu2O is mainly due to the formation of a high-quality heterojunction and the change in the energy band structure, which promotes the transfer rate of the carrier and the separation of photogenic electron hole pairs, thus effectively improving the catalytic efficiency of photocatalysts. Active species detection experiments reveal that positive hole and superoxide anion radical play leading roles in norfloxacin molecule decomposition. In addition, a possible mechanism for the photocatalytic performance of p-Cu2O enhanced by n-ZnO is proposed according to the analysis of the bandgap of p-Cu2O and n-ZnO, along with the built-in electric field formed in the p-n heterojunction. This study provides an effective and alternative method for removing norfloxacin residues in wastewater.
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Affiliation(s)
- Xiaojiao Yu
- School of Science, Xi'an University of Technology, Xi'an, 710048, China.
| | - Huanhuan Chen
- School of Science, Xi'an University of Technology, Xi'an, 710048, China
| | - Qinggong Ji
- School of Science, Xi'an University of Technology, Xi'an, 710048, China
| | - Yangyang Chen
- School of Science, Xi'an University of Technology, Xi'an, 710048, China
| | - Yuchen Wei
- School of Materials Science and Engineering, Xi'an University of Technology, Xi'an, 710048, China
| | - Ningning Zhao
- School of Science, Xi'an University of Technology, Xi'an, 710048, China
| | - Binghua Yao
- School of Science, Xi'an University of Technology, Xi'an, 710048, China
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Oh JE, Yoon Y, Zoh KD. Special issue: Current status and future prospects of micropollutants in water: Monitoring, removal, and risk. CHEMOSPHERE 2021; 263:128228. [PMID: 33297184 DOI: 10.1016/j.chemosphere.2020.128228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
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Chaker H, Fourmentin S, Chérif‐Aouali L. Efficient Photocatalytic Degradation of Ibuprofen under Visible Light Irradiation Using Silver and Cerium Co‐Doped Mesoporous TiO
2. ChemistrySelect 2020. [DOI: 10.1002/slct.202002730] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hanane Chaker
- Laboratoire de Catalyse et Synthèse en Chimie Organique (LCSCO) Université de Tlemcen BP 119 Tlemcen 13000 Algérie
- Unité de Chimie Environnementale et Interaction sur le Vivant (UCEIV, EA 4492), ULCO 59140 Dunkerque, France
- Centre Universitaire Belhadj Bouchaib, BP 284 46000 Ain Temouchent, Algérie
| | - Sophie Fourmentin
- Unité de Chimie Environnementale et Interaction sur le Vivant (UCEIV, EA 4492), ULCO 59140 Dunkerque, France
| | - Leila Chérif‐Aouali
- Laboratoire de Catalyse et Synthèse en Chimie Organique (LCSCO) Université de Tlemcen BP 119 Tlemcen 13000 Algérie
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