1
|
Singla S, Devi P, Basu S. Revolutionizing the Role of Solar Light Responsive BiVO 4/BiOBr Heterojunction Photocatalyst for the Photocatalytic Deterioration of Tetracycline and Photoelectrocatalytic Water Splitting. MATERIALS (BASEL, SWITZERLAND) 2023; 16:5661. [PMID: 37629952 PMCID: PMC10456310 DOI: 10.3390/ma16165661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 08/10/2023] [Accepted: 08/14/2023] [Indexed: 08/27/2023]
Abstract
In this study, a series of BiVO4/BiOBr composites with varying mole ratios were successfully synthesized using a hydrothermal method. The in-situ synthesis strategy facilitated the formation of a close interfacial contact between BiVO4 and BiOBr at the depletion zone, resulting in improved charge segregation, migration, reduced charge recombination, enhanced solar light absorption capacity, promoting narrow band gap, and large surface area. This study investigates the influence of different mole ratios of BiVO4 and BiOBr in a BiVO4/BiOBr nanocomposite on the photocatalytic degradation of tetracycline (TC), a pharmaceutical pollutant, and photoelectrocatalytic water splitting (PEC) under solar light irradiation. Maximum decomposition efficiency of ~90.4% (with a rate constant of 0.0159 min-1) for TC was achieved with 0.5 g/L of 3:1 BiVO4: BiOBr (31BVBI) photocatalyst within 140 min. The degraded compounds resulting from the TC abatement were analyzed using GC-MS. Furthermore, TC standards exhibited 78.2% and 87.7% removal of chemical oxygen demand (COD) and total organic carbon (TOC), respectively, while TC tablets showed 64.6% COD removal and 73.8% TOC removal. The PEC water splitting experiments demonstrated that the 31BVBI photoanode achieved the highest photocurrent density of approximately 0.2198 mA/cm2 at 1.23 V vs. RHE, resulting in the generation of approximately 1.864 mmolcm-2 s-1 of hydrogen, while remaining stable for 21,600 s. The stability of the photocatalyst was confirmed by post-degradation characterizations, which revealed intact crystalline planes, shape, and surface area. Comparisons with existing physicochemical methods used in industries indicate that the reported photocatalyst possesses strong surface catalytic properties and has the potential for application in industrial wastewater treatment and hydrogen generation, offering an advantageous alternative to costly and time-consuming processes.
Collapse
Affiliation(s)
- Shelly Singla
- Materials Science and Sensor Application, Central Scientific Instruments Organisation, Chandigarh 160030, India
- School of Chemistry and Biochemistry, Thapar Institute of Engineering and Technology, Patiala 147004, India
| | - Pooja Devi
- Materials Science and Sensor Application, Central Scientific Instruments Organisation, Chandigarh 160030, India
| | - Soumen Basu
- School of Chemistry and Biochemistry, Thapar Institute of Engineering and Technology, Patiala 147004, India
| |
Collapse
|
2
|
Chaubisa P, Dharmendra D, Vyas Y, Chundawat P, Jangid NK, Ameta C. Synthesis and characterization of PANI and PANI-indole copolymer and study of their antimalarial and antituberculosis activity. Polym Bull (Berl) 2023:1-21. [PMID: 37362957 PMCID: PMC10243275 DOI: 10.1007/s00289-023-04873-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 03/31/2023] [Accepted: 05/28/2023] [Indexed: 06/28/2023]
Abstract
The preparation of polyaniline (PANI) and its copolymer with indole involved a chemical oxidative polymerization method, with benzene sulfonic acid (BSA, C6H6O3S) used as a dopant and potassium persulfate (PPS, K2S2O8) as an oxidant. The synthesized compounds underwent characterization using FTIR, 1H-NMR, TGA, and GPC techniques, which allowed the calculation of their average molecular weight and polydispersity index (PDI) through the GPC technique. The PDI values of the PANI copolymer with indole in different aniline-to-indole ratios were 1.53, 1.13, and 1.532 for 1:1, 1:2, and 2:1 ratios, respectively. Thermal stability was determined using TGA, revealing that the indole heterocyclic compound increased the inflexibility of the polymer chains in the synthesized PANI copolymer. The structure of the copolymer was further analyzed using 1HNMR and FTIR techniques, which confirmed the existence of benzenoid and quinoid groups in the PANI-indole copolymers, as well as the effect of doping on the polymer chains. The antibacterial and antifungal properties of the copolymers were studied against several bacterial and fungal strains and measured in terms of minimum inhibitory concentration. Results indicated that the inhibition rate of the PANI-indole copolymer on S. pyogenus (MTCC 442) was higher than that of standard drugs and individual PANI. The PANI-indole copolymers also displayed excellent antituberculosis and antimalarial activities, with the synthesized copolymer showing better outcomes than individual PANI.
Collapse
Affiliation(s)
- Purnima Chaubisa
- Department of Chemistry, Mohanlal Sukhadia University, Udaipur, Rajasthan India
| | | | - Yogeshwari Vyas
- Department of Chemistry, Mohanlal Sukhadia University, Udaipur, Rajasthan India
| | - Priyanka Chundawat
- Department of Chemistry, Mohanlal Sukhadia University, Udaipur, Rajasthan India
| | | | - Chetna Ameta
- Department of Chemistry, Mohanlal Sukhadia University, Udaipur, Rajasthan India
| |
Collapse
|
3
|
Khezraqa H, Etemadi H, Salami-Kalajahi M, Shokri E. The effect of modified silica nanoparticles on the polycarbonate thin-film nanocomposite membranes in a submerged membrane system for the treatment of surface-contaminated water. Polym Bull (Berl) 2023. [DOI: 10.1007/s00289-023-04769-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
|
4
|
Shu Z, Qi Y, Luo P. Research and performance evaluation of modified nano‐silica gel plugging agent. J Appl Polym Sci 2023. [DOI: 10.1002/app.53873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Affiliation(s)
- Zheng Shu
- State Key Laboratory of Oil & Gas Reservoir and Exploitation Engineering Southwest Petroleum University Chengdu China
- Petroleum Engineering School Southwest Petroleum University Chengdu China
| | - Yong Qi
- State Key Laboratory of Oil & Gas Reservoir and Exploitation Engineering Southwest Petroleum University Chengdu China
- Petroleum Engineering School Southwest Petroleum University Chengdu China
| | - Pingya Luo
- State Key Laboratory of Oil & Gas Reservoir and Exploitation Engineering Southwest Petroleum University Chengdu China
- Petroleum Engineering School Southwest Petroleum University Chengdu China
| |
Collapse
|
5
|
Pandit S, Phalswal P, Khanna PK. Magic Size ZnSe Nanoclusters: Synthesis and their Potential. INORG CHEM COMMUN 2023. [DOI: 10.1016/j.inoche.2023.110602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
|
6
|
Chen W, Qiao H, Zhang D, Tian X, Jin L. Silane coupling agent γ-aminopropyltriethoxysilane-modified nanoparticles/polyurethane elastomer nanocomposites. IRANIAN POLYMER JOURNAL 2023. [DOI: 10.1007/s13726-023-01152-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
|
7
|
Yousefi A, Etemadi H, Hermani M, Aftabi F, Hosseinzadeh G. Preparation and Performance Evaluation of PVC/PDA-modified Al2O3 Nanocomposite Membranes in Oily Wastewater Treatment. J Inorg Organomet Polym Mater 2023. [DOI: 10.1007/s10904-023-02559-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
|
8
|
Wei X, Meng R, Bai Y, Liu W, Zhou H, Wang X, Xu B. Hydrophobic and oleophilic open-cell foams from in-situ microfibrillation blends of poly(lactic acid) and polytetrafluoroethylene: Selective oil-adsorption behaviors. Int J Biol Macromol 2023; 227:273-284. [PMID: 36549028 DOI: 10.1016/j.ijbiomac.2022.12.196] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 12/09/2022] [Accepted: 12/17/2022] [Indexed: 12/24/2022]
Abstract
Confronted with severe water contamination induced by the spillage of oils, seeking oil-selective adsorbent to recover oil from oily wastewater is extremely urgent. In particular, the functionalized polymer foams with open-cell structures are highly promising oil-selective adsorbent. Herein, a simple, effective and green method was presented to prepare open-cell poly(lactic acid) (PLA)/polytetrafluoroethylene (PTFE) foams with selective oil-adsorption behaviors via melt blending and supercritical CO2 batch foaming technique. The introduction of PTFE had a distinct positive influence on the melt viscoelasticity and crystallization performances of various PLA specimens. The resulted PLA/PTFE4 foam with a volume expansion ratio of 10.17 ± 0.93 and a cell density of 1.58 × 108 cells/cm3 possessed the highest open-cell content of 90.81 ± 0.78 %. Meanwhile, PLA/PTFE4 foam revealed oil/water selective adsorption capacity of 1.2-6.1 g/g for various organic solvents and oils. The adsorption capacity of PLA/PTFE4 foam for CCl4 exhibited no significant decrement during ten adsorption-desorption cycles. This research offered a guideline for the manufacture of green environmental open-cell polymer foams for oil-selective adsorption.
Collapse
Affiliation(s)
- Xinyi Wei
- Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, People's Republic of China
| | - Ruijing Meng
- Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, People's Republic of China
| | - Yu'an Bai
- Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, People's Republic of China
| | - Wei Liu
- School of Materials and Energy Engineering, Guizhou Institute of Technology, Guiyang 550003, People's Republic of China
| | - Hongfu Zhou
- Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, People's Republic of China.
| | - Xiangdong Wang
- Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, People's Republic of China
| | - Bo Xu
- Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, People's Republic of China.
| |
Collapse
|
9
|
Xia C, Ye H, Wu Y, Garalleh HA, Garaleh M, Sharma A, Pugazhendhi A. Nanofibrous/biopolymeric membrane a sustainable approach to remove organic micropollutants: A review. CHEMOSPHERE 2023; 314:137663. [PMID: 36581125 DOI: 10.1016/j.chemosphere.2022.137663] [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: 10/26/2022] [Revised: 12/13/2022] [Accepted: 12/24/2022] [Indexed: 06/17/2023]
Abstract
Aquifers are severely polluted with organic and inorganic pollutants, posing a serious threat to the global ecological system's balance. While various traditional methods are available, the development of innovative methods for effluent treatment and reuse is critical. Polymers have recently been widely used in a variety of industry sectors due to their unique properties. Biopolymers are a biodegradable material that is also a viable alternative to synthetic polymers. Biopolymers are preferably obtained from cellulose and carrageenan molecules from various biological sources. While compared with conventional non-biodegradable polymeric materials, the biopolymer possesses unique characteristics such as renewability, cost-effectiveness, biodegradability, and biocompatibility. The improvements towards the biopolymeric (natural) membranes have also been thoroughly discussed. The use of nanofillers to stabilise and improve the effectiveness of biopolymeric membranes in the elimination of organic pollutants is one of the most recent developments. This was discovered that the majority of biopolymeric membranes technology consolidated on organic pollutants. More research should be directed toward against emerging organic/persistent organic pollutants (POP) and micropollutants. Furthermore, processes for regenerating and reusing utilized biopolymer-based carbon - based materials are emphasized.
Collapse
Affiliation(s)
- Changlei Xia
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, Jiangsu, 210037, China
| | - Haoran Ye
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, Jiangsu, 210037, China
| | - Yingji Wu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, Jiangsu, 210037, China
| | - Hakim Al Garalleh
- Department of Mathematical Science, College of Engineering, University of Business and Technology-Dahban, Jeddah, 21361, Saudi Arabia
| | - Mazen Garaleh
- Department of Mathematical Science, College of Engineering, University of Business and Technology-Dahban, Jeddah, 21361, Saudi Arabia; Department of Applied Chemistry, Faculty of Science, Tafila Technical University, Tafila, 66141, Jordan
| | - Ashutosh Sharma
- Tecnologico de Monterrey, School of Engineering and Sciences, Centre of Bioengineering, Queretaro, 76130, Mexico
| | - Arivalagan Pugazhendhi
- School of Engineering, Lebanese American University, Byblos, Lebanon; University Centre for Research & Development, Department of Civil Engineering, Chandigarh University, Mohali, India.
| |
Collapse
|
10
|
Cheng Y, Xia C, Garalleh HA, Garaleh M, Lan Chi NT, Brindhadevi K. A review on optimistic development of polymeric nanocomposite membrane on environmental remediation. CHEMOSPHERE 2023; 315:137706. [PMID: 36592836 DOI: 10.1016/j.chemosphere.2022.137706] [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: 10/26/2022] [Revised: 12/13/2022] [Accepted: 12/29/2022] [Indexed: 06/17/2023]
Abstract
Current health and environmental concerns about the abundance and drawbacks of municipal wastewater as well as industrial effluent have prompted the development of novel and innovative treatment processes. A global shortage of clean water poses significant challenges to the survival of all life forms. For the removal of both biodegradable and non-biodegradable harmful wastes/pollutants from water, sophisticated wastewater treatment technologies are required. Polymer membrane technology is critical to overcoming this major challenge. Polymer matrix-based nanocomposite membranes are among the most popular in polymer membrane technology in terms of convenience. These membranes and their major components are environmentally friendly, energy efficient, cost effective, operationally versatile, and feasible. This review provides an overview of the drawbacks as well as promising developments in polymer membrane and nanocomposite membranes for environmental remediation, with a focus on wastewater treatment. Additionally, the advantages of nanocomposite membranes such as stability, antimicrobial properties, and adsorption processes have been discussed. The goal of this review was to summarize the remediation of harmful pollutants from water and wastewater/effluent using polymer matrix-based nanocomposite membrane technology, and to highlight its shortcomings and future prospects.
Collapse
Affiliation(s)
- Yueqin Cheng
- Nanjing Station of Quality Protection in Cultivated Land, Nanjing, 210036, China
| | - Changlei Xia
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, Jiangsu, 210037, China
| | - Hakim Al Garalleh
- Department of Mathematical Science, College of Engineering, University of Business and Technology-Dahban, Jeddah, 21361, Saudi Arabia
| | - Mazen Garaleh
- Department of Mathematical Science, College of Engineering, University of Business and Technology-Dahban, Jeddah, 21361, Saudi Arabia; Department of Applied Chemistry, Faculty of Science, Tafila Technical University, Tafila, 66141, Jordan
| | - Nguyen Thuy Lan Chi
- School of Engineering and Technology, Van Lang University, Ho Chi Minh City, Vietnam
| | - Kathirvel Brindhadevi
- Computational Engineering and Design Research Group, School of Engineering and Technology, Van Lang University, Ho Chi Minh City, Vietnam.
| |
Collapse
|
11
|
A Scalable Heat Pump Film with Zero Energy Consumption. Polymers (Basel) 2022; 15:polym15010159. [PMID: 36616509 PMCID: PMC9823491 DOI: 10.3390/polym15010159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 12/19/2022] [Accepted: 12/24/2022] [Indexed: 12/31/2022] Open
Abstract
Radiative cooling is an effective technology with zero energy consumption to alleviate climate warming and combat the urban heat island effect. At present, researchers often use foam boxes to isolate non-radiant heat exchange between the cooler and the environment through experiments, so as to achieve maximum cooling power. In practice, however, there are challenges in setting up foam boxes on a large scale, resulting in coolers that can be cooled below ambient only under low convection conditions. Based on polymer materials and nano-zinc oxide (nano-ZnO, refractive index > 2, the peak equivalent spherical diameter 500 nm), the manufacturing process of heat pump film (HPF) was proposed. The HPF (4.1 mm thick) consists of polyethylene (PE) bubble film (heat transfer coefficient 0.04 W/m/K, 4 mm thick) and Ethylene-1-octene copolymer (POE) cured nano-ZnO (solar reflectance ≈94% at 0.075 mm thick). Covering with HPF, the object achieves 7.15 °C decreasing in normal natural environment and 3.68 °C even under certain circumstances with high surface convective heat transfer (56.9 W/m2/K). HPF has advantages of cooling the covered object, certain strength (1.45 Mpa), scalable manufacturing with low cost, hydrophobic characteristics (the water contact angle, 150.6°), and meeting the basic requirements of various application scenarios.
Collapse
|
12
|
Preparation of cationic chitooligosaccharide derivatives bearing N-halogenated benzyl pyridinium and assessment of their antimicrobial activities. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04650-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
13
|
Ni Y, Pan Y, Jiang J, Shu CM, Jia Z. Combined computational and experimental investigation on the Fenton reagent catalysed hydroxylation of benzene. J Taiwan Inst Chem Eng 2022. [DOI: 10.1016/j.jtice.2022.104576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
14
|
Xia Y, Xu W, Zhang H, Wu X, Dai H. 3D
‐printing polylactic acid/hydroxyapatite fracture internal fixation plates for bone repair. J Appl Polym Sci 2022. [DOI: 10.1002/app.53147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Yuhao Xia
- Shenzhen Institute of Wuhan University of Technology Shenzhen China
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Biomedical Materials and Engineering Research Center of Hubei Province Wuhan University of Technology Wuhan China
| | - Wei Xu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Biomedical Materials and Engineering Research Center of Hubei Province Wuhan University of Technology Wuhan China
| | - Hongbiao Zhang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Biomedical Materials and Engineering Research Center of Hubei Province Wuhan University of Technology Wuhan China
| | - Xiaopei Wu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Biomedical Materials and Engineering Research Center of Hubei Province Wuhan University of Technology Wuhan China
| | - Honglian Dai
- Shenzhen Institute of Wuhan University of Technology Shenzhen China
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Biomedical Materials and Engineering Research Center of Hubei Province Wuhan University of Technology Wuhan China
| |
Collapse
|
15
|
Polycarbonate/polyvinyl alcohol thin film nanocomposite membrane incorporated with silver nanoparticles for water treatment. BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING 2022. [DOI: 10.1007/s43153-022-00273-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
|
16
|
Etemadi H, Khezraqa H, Hermani M. Incorporation of amino‐functionalized
ZnO
nanoparticles into polycarbonate/polyvinyl alcohol thin‐film membrane for enhanced water treatment. POLYM ENG SCI 2022. [DOI: 10.1002/pen.26070] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Habib Etemadi
- Department of Polymer Science and Engineering University of Bonab Bonab Iran
| | - Homayun Khezraqa
- Department of Polymer Science and Engineering University of Bonab Bonab Iran
| | - Milad Hermani
- Department of Chemical Engineering University of Bonab Bonab Iran
| |
Collapse
|
17
|
Singh J, Vennapusa JR, Dixit P, Maiti TK, Chattopadhyay S. A novel strategy for temperature controlling of chocolates through 1-dodecanol embedded polyurea coated barium alginate beads. J Taiwan Inst Chem Eng 2022. [DOI: 10.1016/j.jtice.2022.104497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
18
|
ElGharbi H, Henni A, Salama A, Zoubeik M, Kallel M. Toward an Understanding of the Role of Fabrication Conditions During Polymeric Membranes Modification: A Review of the Effect of Titanium, Aluminum, and Silica Nanoparticles on Performance. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2022. [DOI: 10.1007/s13369-022-07143-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
19
|
Kanamura T. Clean energy and (E)SG investing from energy and environmental linkages. ENVIRONMENT, DEVELOPMENT AND SUSTAINABILITY 2022; 25:1-41. [PMID: 35966340 PMCID: PMC9362046 DOI: 10.1007/s10668-022-02460-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Accepted: 05/18/2022] [Indexed: 06/15/2023]
Abstract
The objectives of this study are to analyze the presence of environmental values in ESG indexes based on the positive value relationship between energy and the environment found in existing studies and to identify the characteristics of environmental, social, and governance (ESG) investments by examining the performance of ESG investments compared to market portfolios, as well as to consider the implications of ESG investment in clean energy policy based on the results of the empirical analysis of this study. This paper contributes threefold. First, using a supply and demand-based pricing model, we propose a new model of the expected return, risk, and performance ratio of the ESG premiums defined by the log price differences between ESG indexes and a market portfolio to analyze how ESG investments perform. Second, based on the empirical findings of this study that the correlation between ESG indexes and energy prices is a decreasing function of the latter in contrast to other environmental assets, this paper suggests that ESG indexes cannot adequately demonstrate environmental values but reflect social and governance values, i.e., (E)SG, in the complementary perspective. Third, using the empirical findings of this study that the information ratio of the ESG premium tends to be positive but declines and approaches zero over time, this paper indicates that although ESG investments can be significant compared to market index investments, the significance is limited because ESG investment performance converges with market portfolio performance. In conclusion, two points should be noted about ESG investing in clean energy policy: given the dilution of environmental values in ESG investing, a clear distinction should be made between ESG investing and renewable energy investing; even if investments in renewable energy projects are treated as ESG investments, reflecting current market trends, we should be prepared for the fact that the superior investment performance due to social and governance values, rather than environmental values, will not last long.
Collapse
Affiliation(s)
- Takashi Kanamura
- Graduate School of Advanced Integrated Studies in Human Survivability (GSAIS), Kyoto University, 1, Yoshida-Nakaadachi-cho, Sakyo-ku, Kyoto, 606-8306 Japan
| |
Collapse
|
20
|
Abstract
A novel 5-(5-Bromo-2-hydroxybenzylidene)-6-oxo-3-phenyl-5,6-dihydro-1,2,4-triazine-2(1H)-carbothioamide (4) “compound 4” was synthesized. The chemical structure of compound 4 was confirmed with spectroscopic techniques. Thermal analysis (TGA/dTGA) studies were conducted for identifying the kinetic thermodynamic parameters and the thermal stability of the synthesized compound 4. Cyclic voltammetric studies were performed for recognizing electrochemical characteristics of the synthesized compound 4. The calculated highest occupied molecular orbital (HOMO), lowest unoccupied molecular orbital (LUMO), and the band gap were found to be −3.61, −5.32, and 1.97 eV, respectively. Using a diffused reflectance spectroscopy (DRS) technique, the estimated values of the optical band transitions of compound 4 in powder form were found to be 2.07 and 2.67 eV. The structural properties of thermally evaporated compound 4 thin films were analyzed using field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), and Fourier transform infrared (FTIR) spectroscopy. It was found that compound 4 has a triclinic crystal structure. The optical transitions and the optical dispersion factors of compound 4 thin films were investigated using a UV-Vis spectroscopy technique. From the UV-Vis spectroscopy technique, Egind=3.6 V was estimated for both the as-deposited and annealed thin films. For the as-deposited film, there were two photoluminescence (PL) emission peaks centered at 473 and 490 nm with a shoulder at 422 nm. For the annealed film at 423 K, there were five PL emission peaks centered at 274, 416, 439, 464, and 707 nm with a shoulder at 548 nm. The dark electrical conduction of compound 4 thin film was through a thermally activated process with activation energy equaling 0.88 eV.
Collapse
|
21
|
Etemadi H, Kazemi R, Ghasemian N, Shokri E. Effect of Transmembrane Pressure on Antifouling Properties of PVC/Clinoptilolite Ultrafiltration Nanocomposite Membranes. Chem Eng Technol 2022. [DOI: 10.1002/ceat.202200097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Habib Etemadi
- University of Bonab Department of Polymer Science and Engineering 5551761167 Bonab Iran
| | - Rozita Kazemi
- University of Bonab Department of Polymer Science and Engineering 5551761167 Bonab Iran
| | - Naser Ghasemian
- University of Bonab Department of Chemical Engineering 5551761167 Bonab Iran
| | - Elham Shokri
- University of Bonab Department of Chemical Engineering 5551761167 Bonab Iran
| |
Collapse
|
22
|
Su YH, Shih CY, Su CH, Lee YL, Hsieh CT, Teng H. Dielectric gel electrolytes for safe charge storage from −20 to 80°C by double-layer capacitors. J Taiwan Inst Chem Eng 2022. [DOI: 10.1016/j.jtice.2022.104309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
23
|
Elkony Y, Ali M, Ebrahim S, Adel R. High Photoluminescence Polyindole/CuInS Quantum Dots for Pb Ions Sensor. J Inorg Organomet Polym Mater 2022. [DOI: 10.1007/s10904-022-02300-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
AbstractPolyindole is considered an excellent conducting polymer with interested properties for different applications. A novel polyindole (PIn)/CuInS (CIS)/ZnS quantum dots (QDs) nanocomposite was synthesized via in situ polymerization of PIn in presence of CIS/ZnS QDs. By investigating the effect of CIS/ZnS QDs on optical properties of PIn, it was found that the optical band gaps of PIn, CIS/ZnS QDs, and PIn/CIS/ZnS QDs nanocomposite were 3.24 eV, 4.68 eV and 3.44 eV, respectively. From the luminance spectra, it was observed that emission peaks of PIn at 442 and 468 nm are independent of the excitation wavelength with the highest intensity at excitation wavelength of 380 nm. However, the luminance spectrum of PIn/CIS/ZnS QDs nanocomposite exhibited a quenching peak for CIS/ZnS QDs while the intensity of PIn peak was enhanced. High resolution of transmission electron microscope image of CIS/ZnS QDs revealed nanocrystals with a size of 3–4.5 nm and lattice space of 0.2 nm. PIn/CIS/ZnS QDs nanocomposite as the fluorescent probe was employed for sensing different concentrations of Pb2+ from 5 to 50 ppb. The reaction between PIn/CIS/ZnS QDs and Pb2+ was slightly quenched and fixed after 90 min. The emission peak was reduced gradually with increasing concentration of lead via photo-induced electron transfer or ion exchange mechanism. The value of correlation coefficient (R2) was 0.99, the sensitivity was 0.0041 ppb−1 and limit of detection value was 4.48 ppb.
Collapse
|
24
|
Divya S, Oh TH. Polymer Nanocomposite Membrane for Wastewater Treatment: A Critical Review. Polymers (Basel) 2022; 14:polym14091732. [PMID: 35566901 PMCID: PMC9100919 DOI: 10.3390/polym14091732] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 04/21/2022] [Indexed: 02/04/2023] Open
Abstract
With regard to global concerns, such as water scarcity and aquatic pollution from industries and domestic activities, membrane-based filtration for wastewater treatment has shown promising results in terms of water purification. Filtration by polymeric membranes is highly efficient in separating contaminants; however, such membranes have limited applications. Nanocomposite membranes, which are formed by adding nanofillers to polymeric membrane matrices, can enhance the filtration process. Considerable attention has been given to nanofillers, which include carbon-based nanoparticles and metal/metal oxide nanoparticles. In this review, we first examined the current status of membrane technologies for water filtration, polymeric nanocomposite membranes, and their applications. Additionally, we highlight the challenges faced in water treatment in developing countries.
Collapse
|
25
|
Process optimization for decoration of Bi2Se3 nanoparticles on CdS nanowires: Twofold power conversion solar cell efficiency. J Taiwan Inst Chem Eng 2022. [DOI: 10.1016/j.jtice.2022.104251] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
|
26
|
Rocha LSR, Simões AZ, Macchi C, Somoza A, Giulietti G, Ponce MA, Longo E. Synthesis and defect characterization of hybrid ceria nanostructures as a possible novel therapeutic material towards COVID-19 mitigation. Sci Rep 2022; 12:3341. [PMID: 35228568 PMCID: PMC8885868 DOI: 10.1038/s41598-022-07200-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 02/14/2022] [Indexed: 02/06/2023] Open
Abstract
This study reports the synthesis of hybrid nanostructures composed of cerium dioxide and microcrystalline cellulose prepared by the microwave-assisted hydrothermal route under distinct temperature and pH values. Their structural, morphological and spectroscopic behaviors were investigated by X-Rays Diffraction, Field Emission Gun Scanning Electron Microscopy, High-Resolution Transmission Electron Microscopy, and Fourier-Transform Infrared, Ultraviolet–Visible, Raman and Positron Annihilation Lifetime spectroscopies to evaluate the presence of structural defects and their correlation with the underlying mechanism regarding the biocide activity of the studied material. The samples showed mean crystallite sizes around 10 nm, characterizing the formation of quantum dots unevenly distributed along the cellulose surface with a certain agglomeration degree. The samples presented the characteristic Ce–O vibration close to 450 cm−1 and a second-order mode around 1050 cm−1, which is indicative of distribution of localized energetic levels originated from defective species, essential in the scavenging of reactive oxygen species. Positron spectroscopic studies showed first and second lifetime components ranging between 202–223 ps and 360–373 ps, respectively, revealing the presence of two distinct defective oxygen species, in addition to an increment in the concentration of Ce3+-oxygen vacancy associates as a function of temperature. Therefore, we have successfully synthesized hybrid nanoceria structures with potential multifunctional therapeutic properties to be further evaluated against the COVID-19.
Collapse
Affiliation(s)
- L S R Rocha
- Center for Research and Development of Functional Materials, Federal University of São Carlos (UFSCar), São Carlos, SP, Brazil.
| | - A Z Simões
- School of Engineering, São Paulo State University (UNESP), Guaratinguetá, SP, Brazil
| | - C Macchi
- CIFICEN (UNCPBA-CICPBA-CONICET) and Instituto de Física de Materiales Tandil (UNCPBA), Pinto 399, B7000GHG, Tandil, Argentina
| | - A Somoza
- CIFICEN (UNCPBA-CICPBA-CONICET) and Instituto de Física de Materiales Tandil (UNCPBA), Pinto 399, B7000GHG, Tandil, Argentina
| | - G Giulietti
- National University of Mar del Plata (UNMdP), Mar del Plata, Argentina
| | - M A Ponce
- National University of Mar del Plata (UNMdP), Mar del Plata, Argentina
| | - E Longo
- Center for Research and Development of Functional Materials, Federal University of São Carlos (UFSCar), São Carlos, SP, Brazil
| |
Collapse
|
27
|
Preparation of fiber core support
UHMWPE
/
SiO
2
composite hollow fiber membrane toward enhancing structure stability and antifouling. POLYM ENG SCI 2022. [DOI: 10.1002/pen.25860] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
|
28
|
Tunning the Physical Properties of PVDF/PVC/Zinc Ferrite Nanocomposites Films for More Efficient Adsorption of Cd (II). J Inorg Organomet Polym Mater 2022. [DOI: 10.1007/s10904-021-02176-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
|
29
|
Joy A, Unnikrishnan G, Megha M, Haris M, Thomas J, Kolanthai E, Muthuswamy S. Polycaprolactone/Graphene Oxide–Silver Nanocomposite: A Multifunctional Agent for Biomedical Applications. J Inorg Organomet Polym Mater 2022. [DOI: 10.1007/s10904-021-02180-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
30
|
Hashemi Z, Ebrahimzadeh MA, Biparva P, Abedirad SM. Pyridine-2-yl Quinoxaline (2-CPQ) Derivative As a Novel Pink Fluorophore: Synthesis, and Chemiluminescence Characteristics. J Fluoresc 2022; 32:723-736. [PMID: 35044576 DOI: 10.1007/s10895-022-02890-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 01/03/2022] [Indexed: 01/05/2023]
Abstract
Quinoxaline derivatives are well-known N-heterocycles with pharmacological and fluorescence activities. Almost all quinoxaline derivatives with extensive π-conjugation have been introduced as fluorophores which emit blue and green light. For the first time, we designed and synthesized 6-chloro-2,3 di(Pyridine-2yl) quinoxaline (2-CPQ) as a pink fluorophore in acetonitrile medium by simple route at room temperature whitin 30 min. The synthesized quinoxaline was identified using 1H, 13C NMR, MS, and FT-IR spectroscopy. Our results showed that the iodine-catalyzed method for both oxidation and cyclization during the synthesis of quinoxaline from pyridine 2-carbaldehyde was straightforward, efficient, and clean. All of the mentioned characterization devices confirmed the synthesis of 2-CPQ.Moreover, we studied the photophysical properties of the synthesized fluorophore in which The UV-Vis absorption spectrum of 2-CPQ in DMF were three peaks at 451, 518 and 556 nm. Based on photophysical properties investigation, 2-CPQ shows good fluorescence with maximum peaks 607 and 653 nm in DMF as solvent (фF = 0.21). Hence, the fluorophore was applied in the peroxyoxalate chemiluminescence system. The reaction of imidazole, H2O2, and bis (2,4,6-trichlorophenyl) oxalate (TCPO) can transfer energy to a 6-chloro-2,3 di(pyridine-2yl) quinoxaline. In this process, dioxetane was synthesized, which chemically initiated the electron exchange luminescence (CIEEL) mechanism and led to pink light emission. We anticipate our synthesized fluorophores 2-CPQ will have great potential applications in imaging and medical markers.
Collapse
Affiliation(s)
- Zahra Hashemi
- Pharmaceutical Sciences Research Center, Department of Medicinal Chemistry, School of Pharmacy, Hemoglobinopathy Institute, Mazandaran University of Medical Sciences, Sari, Iran
| | - Mohammad Ali Ebrahimzadeh
- Pharmaceutical Sciences Research Center, Department of Medicinal Chemistry, School of Pharmacy, Hemoglobinopathy Institute, Mazandaran University of Medical Sciences, Sari, Iran.
| | - Pourya Biparva
- Department of Basic Sciences, Sari University of Agricultural Sciences and Natural Resources, P.O.Box 578, Sari, Iran.
| | - Seyed Mohammad Abedirad
- Department of Basic Sciences, Sari University of Agricultural Sciences and Natural Resources, P.O.Box 578, Sari, Iran
| |
Collapse
|
31
|
Optimizing Graphene Oxide Encapsulated TiO2 and Hydroxyapatite; Structure and Biological Response. J Inorg Organomet Polym Mater 2022. [DOI: 10.1007/s10904-021-02193-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
32
|
Synthesis, Characterization and Antimicrobial Activity of Copper-Metal Organic Framework (Cu-MOF) and Its Modification by Melamine. J Inorg Organomet Polym Mater 2022. [DOI: 10.1007/s10904-021-02187-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
|
33
|
Synthesis and Characterization of ZnO/CuO Nanocomposites as an Effective Photocatalyst and Gas Sensor for Environmental Remediation. J Inorg Organomet Polym Mater 2022. [DOI: 10.1007/s10904-021-02178-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
34
|
Non-precious Sn as alternative substitute metal in graphene-based catalysts for methanol electrooxidation. J APPL ELECTROCHEM 2022. [DOI: 10.1007/s10800-021-01648-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
35
|
Facile Synthesis and Antibacterial Activity of Bioplastic Membrane Containing In Doped ZnO/Cellulose Acetate Nanocomposite. J Inorg Organomet Polym Mater 2021. [DOI: 10.1007/s10904-021-02171-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|