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Dien ND, Pham TTH, Vu XH, Xuan VT, Nguyen TTT, Trang TT, Van Hao N, Nga PT, Kim Chi TT, Giang TTH, Toan ND. High photocatalytic efficiency of a ZnO nanoplate/Fe 2O 3 nanospindle hybrid using visible light for methylene blue degradation. RSC Adv 2024; 14:28244-28259. [PMID: 39234520 PMCID: PMC11372561 DOI: 10.1039/d4ra04230a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2024] [Accepted: 08/14/2024] [Indexed: 09/06/2024] Open
Abstract
In this work, ZnO nanoplates and Fe2O3 nanospindles were successfully fabricated via a simple hydrothermal method using inorganic salts as precursors. The ZnO/Fe2O3 hybrid was fabricated using a mechanical mixture of two different ZnO : Fe2O3 weight ratios to investigate the effect of weight ratio on catalytic properties. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) images showed that ZnO nanoplates (NPls) are about 20 nm thick with lateral dimensions of 100 × 200 nm, and Fe2O3 nanospindles (NSs) are about 500 nm long and 50 nm wide. X-ray diffraction (XRD) patterns revealed the successful formation of the ZnO, Fe2O3, and ZnO/Fe2O3 samples and indicated that their crystallite sizes varied from 20 to 29 nm depending on the ZnO : Fe2O3 weight ratio. Ultraviolet-visible (UV-vis) spectra showed that the bandgap energies of ZnO and Fe2O3 were 3.15 eV and 2.1 eV, respectively. Energy dispersive X-ray spectroscopy (EDS) results revealed the successful combination of ZnO and Fe2O3. Photocatalytic activity of the materials was evaluated through the degradation of methylene blue (MB) in aqueous solution under green light-emitting diode (GLED) irradiation. The results indicated that the ZnO/Fe2O3 composite showed a remarkable enhanced degradation capacity compared to bare ZnO NPls and Fe2O3 NSs. The ZnO : Fe2O3 = 3 : 2 sample demonstrated the best performance among all samples under identical conditions with a degradation efficiency of 99.3% for MB after 85 min. The optimum photocatalytic activity of the sample with ZnO : Fe2O3 = 3 : 2 was nearly 3.6% higher than that of the pure ZnO sample and 1.12 times more than that of the pristine Fe2O3 sample. Moreover, the highest photo-degradation was obtained at a photocatalyst dosage of 0.25 g l-1 in dye solution.
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Affiliation(s)
- Nguyen Dac Dien
- Faculty of Occupational Safety and Health, Vietnam Trade Union University 169 Tay Son Street, Dong Da District Hanoi City Vietnam
| | - Thi Thu Ha Pham
- Faculty of Chemistry, TNU-University of Sciences Tan Thinh Ward Thai Nguyen City Vietnam
| | - Xuan Hoa Vu
- Institute of Science and Technology, TNU-University of Sciences Tan Thinh Ward Thai Nguyen City Vietnam
| | - Vuong Truong Xuan
- Faculty of Chemistry, TNU-University of Sciences Tan Thinh Ward Thai Nguyen City Vietnam
| | - Thi Thu Thuy Nguyen
- Faculty of Chemistry, TNU-University of Sciences Tan Thinh Ward Thai Nguyen City Vietnam
| | - Tran Thu Trang
- Institute of Science and Technology, TNU-University of Sciences Tan Thinh Ward Thai Nguyen City Vietnam
| | - Nguyen Van Hao
- Institute of Science and Technology, TNU-University of Sciences Tan Thinh Ward Thai Nguyen City Vietnam
| | - Pham Thi Nga
- Institute of Science and Technology, TNU-University of Sciences Tan Thinh Ward Thai Nguyen City Vietnam
- Faculty of Secondary School, Hoa Lu University 2 Xuan Thanh Street, Ninh Nhat Commune Ninh Binh City Vietnam
| | - Tran Thi Kim Chi
- Institute of Materials Science, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road, Cau Giay District Ha Noi City Vietnam
| | - Tran Thi Huong Giang
- Institute of Materials Science, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road, Cau Giay District Ha Noi City Vietnam
| | - Nguyen Duc Toan
- Centre for Quantum Electronics, Institute of Physics, Vietnam Academy of Science and Technology 10 Dao Tan, Ba Dinh District Ha Noi City Vietnam
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Martins E, Trigueiro P, Jerônimo AG, Barbosa R, Neves L, Sales DA, Almeida LC, Viana BC, Soares AS, Peña-Garcia RR. Efficient photocatalytic degradation of diclofenac drug using the Zn 1-x-yPr xAl yO photocatalyst under UV light irradiation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:53074-53089. [PMID: 39172341 DOI: 10.1007/s11356-024-34768-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Accepted: 08/16/2024] [Indexed: 08/23/2024]
Abstract
Herein, we report the efficient photocatalytic degradation of the diclofenac drug using the Zn1-x-yPrxAlyO photocatalyst [x, y] = (0.00, 0.00), (0.03, 0.01), (0.03,0.03) under UV light irradiation. The analysis of the structure reveals that the Pr3+ and Al3+ cations insertion into the ZnO lattice leads to a decrease in the lattice constant (a and c), Zn-O bond length, strain lattice, and crystallite size. These alterations are linked to the high degree of atomic disorder triggered by the dopants, which produce stress and strain in the ZnO structure. The Raman measurements confirmed the structural phase and showed changes in the position and intensity of the E2High mode, associated with oxygen vibrations and material crystallinity. The presence of the dopants reduces the concentration of VZn and VO++ type defects while increasing the levels of VO, VO+, and Oi defects, as observed from the fitting of the Photoluminescence spectra. Furthermore, it was noted that de Pr3+ and Al3+ cations insertion into ZnO increases the optical band gap, which is associated with the Moss-Burstein effect. The micrograph images show that dopants transform the morphology from quasi-spherical particles to irregular cluster structures. The textural analysis indicated that an increase in the concentration of Al3+ in the ZnO lattice led to a higher surface area, likely enhancing photocatalytic activity. The sample containing 3% Pr3+ and 3% Al3+ showed the highest photocatalytic activity and degraded up to 71.42% of diclofenac. In addition, experiments with scavengers revealed that hydroxyl radicals are the main species involved in the drug's photodegradation mechanism. Finally, the Zn1-x-yPrxAlyO compound is highly recyclable and stable.
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Affiliation(s)
- Emanoel Martins
- Programa de Pós-Graduação Em Ciências E Engenharia Dos Materiais, Universidade Federal de Piauí, Teresina, PI, Brazil
| | - Pollyana Trigueiro
- Programa de Pós-Graduação Em Engenharia Física, Universidade Federal Rural de Pernambuco, Unidade Acadêmica Do Cabo de Santo Agostinho, Cabo de Santo Agostinho, PE, Brazil
| | - Aimée G Jerônimo
- Programa de Pós-Graduação Em Engenharia Física, Universidade Federal Rural de Pernambuco, Unidade Acadêmica Do Cabo de Santo Agostinho, Cabo de Santo Agostinho, PE, Brazil
| | - Ricardo Barbosa
- Programa de Pós-Graduação Em Engenharia Física, Universidade Federal Rural de Pernambuco, Unidade Acadêmica Do Cabo de Santo Agostinho, Cabo de Santo Agostinho, PE, Brazil
| | - Luan Neves
- Programa de Pós-Graduação Em Engenharia Física, Universidade Federal Rural de Pernambuco, Unidade Acadêmica Do Cabo de Santo Agostinho, Cabo de Santo Agostinho, PE, Brazil
| | - Débora A Sales
- Programa de Pós-Graduação Em Ciências E Engenharia Dos Materiais, Universidade Federal de Piauí, Teresina, PI, Brazil
| | - Luciano C Almeida
- Departamento de Engenharia Química, Universidade Federal de Pernambuco, Recife, PE, Brazil
| | - Bartolomeu C Viana
- Programa de Pós-Graduação Em Ciências E Engenharia Dos Materiais, Universidade Federal de Piauí, Teresina, PI, Brazil
| | - Adriano S Soares
- Programa de Pós-Graduação Em Ciências E Engenharia Dos Materiais, Universidade Federal de Piauí, Teresina, PI, Brazil
| | - Ramón R Peña-Garcia
- Programa de Pós-Graduação Em Ciências E Engenharia Dos Materiais, Universidade Federal de Piauí, Teresina, PI, Brazil.
- Programa de Pós-Graduação Em Engenharia Física, Universidade Federal Rural de Pernambuco, Unidade Acadêmica Do Cabo de Santo Agostinho, Cabo de Santo Agostinho, PE, Brazil.
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3
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Wu Y, Liu J, Zhao J, Jin C, Ren H, Yin Y, Li Z. An oxygen vacancy-rich BiO 2-x/COF heterojunction for photocatalytic degradation of diclofenac. NANOSCALE 2024; 16:10645-10655. [PMID: 38766844 DOI: 10.1039/d4nr00608a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
A BiO2-x/COF composite was successfully synthesized by simple mechanical ball milling. Compared to pure BiO2-x and COFs, the BiO2-x/COF composite (1 : 9) showed superior photocatalytic capability. Under visible light irradiation for 90 min, the photocatalytic degradation rate of DCF reached 97%. In addition, the characterization results showed that the formation of heterojunctions and the increase in oxygen vacancy concentration were the reasons for the enhancement of the photocatalytic activity. It is confirmed by free radical capture experiments that ˙O2- and h+ are the main reactive substances in the photocatalytic process. The photocatalytic degradation mechanism of the composite and the photocatalytic degradation pathway of diclofenac were deduced.
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Affiliation(s)
- Yuze Wu
- Beijing University of Chemical Technology, Beijing 100029, China.
| | - Jingchao Liu
- School of Computer Science and Engineering, Beihang University, Beijing 100191, China.
| | - Jinxia Zhao
- Beijing University of Chemical Technology, Beijing 100029, China.
| | - Chunhong Jin
- Beijing University of Chemical Technology, Beijing 100029, China.
| | - Hailong Ren
- Beijing University of Chemical Technology, Beijing 100029, China.
| | - Yilin Yin
- Beijing University of Chemical Technology, Beijing 100029, China.
| | - Zenghe Li
- Beijing University of Chemical Technology, Beijing 100029, China.
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Yasmeen S, Burratti L, Duranti L, Sgreccia E, Prosposito P. Photocatalytic Degradation of Organic Pollutants-Nile Blue, Methylene Blue, and Bentazon Herbicide-Using NiO-ZnO Nanocomposite. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:470. [PMID: 38470799 DOI: 10.3390/nano14050470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 02/26/2024] [Accepted: 03/01/2024] [Indexed: 03/14/2024]
Abstract
Water pollution poses a significant threat to both human health and ecosystem integrity. Chemical pollutants such as dyes and pesticides affect the water quality and endanger aquatic life. Among the methods for water purification from organic pollutants, photodegradation is certainly a valid technique to decrease such contaminants. In this work, pristine NiO, ZnO, and NiO-ZnO photocatalysts were synthesized by the homogeneous co-precipitation method. X-ray diffraction confirms the formation of a photocatalyst consisting of ZnO (Hexagonal) and NiO (Cubic) structures. The crystalline size was calculated by the Scherrer formula, which is 19 nm for the NiO-ZnO photocatalyst. The band gap measurements of the prepared samples were obtained using the Tauc Plot, equation which is 2.93 eV, 3.35 eV and 2.63 eV for NiO, ZnO, and NiO-ZnO photocatalysts, respectively. The photocatalytic performance of NiO-ZnO nanocomposite was evaluated through the degradation of Methylene Blue and Nile Blue dyes under sunlight, and Bentazon herbicide under a UV light. Photocatalyst degradation efficiency was 95% and 97% for Methylene Blue and Nile Blue in 220 min under sunlight while a degradation of 70% for Bentazon after 100 min under UV light source was found.
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Affiliation(s)
- Sadaf Yasmeen
- Industrial Engineering Department, University of Rome Tor Vergata, Via del Politecnico 1, 00133 Rome, Italy
| | - Luca Burratti
- Department of Sciences, University of Roma Tre, Via della Vasca Navale 79, 00146 Rome, Italy
| | - Leonardo Duranti
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, Via della Ricerca Scientifica 1, 00133 Rome, Italy
| | - Emanuela Sgreccia
- Industrial Engineering Department, University of Rome Tor Vergata, Via del Politecnico 1, 00133 Rome, Italy
| | - Paolo Prosposito
- Industrial Engineering Department, University of Rome Tor Vergata, Via del Politecnico 1, 00133 Rome, Italy
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Sangkhanak S, Kunthakudee N, Hunsom M, Ramakul P, Serivalsatit K, Pruksathorn K. Highly efficient ZnO/WO 3 nanocomposites towards photocatalytic gold recovery from industrial cyanide-based gold plating wastewater. Sci Rep 2023; 13:22752. [PMID: 38123788 PMCID: PMC10733279 DOI: 10.1038/s41598-023-49982-6] [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: 09/24/2023] [Accepted: 12/14/2023] [Indexed: 12/23/2023] Open
Abstract
Discharging the gold-contained wastewater is an economic loss. In this work, a set of ZnO/WO3 was facile synthesized by hydrothermal method in order to recover gold from the industrial cyanide-based gold plating wastewater by photocatalytic process. Effect of ZnO contents coupled with WO3 was first explored. Then, effects of operating condition including initial pH of wastewater, type of hole scavenger, concentration of the best hole scavenger and photocatalyst dose were explored. A series of experimental results demonstrated that the ZnO/WO3 nanocomposite with 5 wt% ZnO (Z5.0/WO3) depicted the highest photocatalytic activity for gold recovery due to the synergetic effect of oxygen vacancies, a well-constructed ZnO/WO3 heterostructure and an appropriate band position alignment with respect to the redox potentials of [Au(CN)2]- and hole scavengers. Via this ZnO/WO3 nanocomposite, approximately 99.5% of gold ions was recovered within 5 h using light intensity of 3.57 mW/cm2, catalyst dose of 2.0 g/L, ethanol concentration of 20 vol% and initial pH of wastewater of 11.2. In addition, high stability and reusability were observed with the best nanocomposite even at the 5th reuse. This work provides the guidance and pave the way for designing the ZnO/WO3 nanocomposite for precious metal recovery from a real industrial wastewater.
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Affiliation(s)
- Satjaporn Sangkhanak
- Department of Chemical Technology, Faculty of Science, Chulalongkorn University, Phayathai Road, Pathumwan, Bangkok, 10330, Thailand
- Department of Chemical Engineering, Faculty of Engineering, Mahidol University, Phuttamonthon 4 Road, Nakhon Pathom, 73170, Thailand
| | - Naphaphan Kunthakudee
- Department of Chemical Engineering, Faculty of Engineering, Mahidol University, Phuttamonthon 4 Road, Nakhon Pathom, 73170, Thailand
| | - Mali Hunsom
- Department of Chemical Engineering, Faculty of Engineering, Mahidol University, Phuttamonthon 4 Road, Nakhon Pathom, 73170, Thailand.
- Associate Fellow of Royal Society of Thailand (AFRST), Bangkok, 10300, Thailand.
| | - Prakorn Ramakul
- Department of Chemical Engineering, Faculty of Engineering and Industrial Technology, Silpakorn University, Nakhon Pathom, 73000, Thailand
| | - Karn Serivalsatit
- Department of Materials Science, Faculty of Science, Chulalongkorn University, Phayathai Road, Pathumwan, Bangkok, 10330, Thailand
- Photocatalysts for Clean Environment and Energy Research Unit, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Kejvalee Pruksathorn
- Department of Chemical Technology, Faculty of Science, Chulalongkorn University, Phayathai Road, Pathumwan, Bangkok, 10330, Thailand
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6
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Ahmad I, Shukrullah S, Hussain H, Naz MY, Irfan M, Alyahyawy O, Al Thagafi MA. Optimal Architecture of a Dual S-Scheme ZnIn 2S 4-ZnO-Al 2O 3 Heterosystem with High H 2 Evolution Rate under Visible Light. ACS OMEGA 2023; 8:26065-26078. [PMID: 37521654 PMCID: PMC10373468 DOI: 10.1021/acsomega.3c02267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 06/16/2023] [Indexed: 08/01/2023]
Abstract
In this study, dual S-scheme ZnIn2S4-Al2O3-ZnO (ZIS-Al-Zn) heterojunctions were produced by a facile, low cost, and rapid combustion technique. These heterojunctions accelerated the photocatalytic hydrogen production due to the multi-channel-promoted separation of photocarriers. By optimizing the content of the components, the synthesized ZIS-Al-Zn composite with 20 wt% of ZnIn2S4 and 30 wt% of Al2O3 in the ZIS-Al-Zn composite demonstrated the highest hydrogen production rate of 54.2 mmol g-1 h-1, which was nearly 11 and 8.30 times better than ZnO-Al2O3 and ZnO-ZnIn2S4 composites, respectively. The results of DRS, PL, EIS, LSV, and CV techniques showed the highest shift in the light absorption, rapid interfacial transfer, and quenched recombination of photocarriers over the ternary ZIS-Al-Zn composite than single and binary catalysts. The obtained results revealed the formation of a dual S-scheme mechanism of transfer of photocarriers in ZIS-Al-Zn heterojunctions, contributing to better hydrogen production efficiency. The optimized ZIS-Al-Zn composite also exhibited good stability and reusability.
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Affiliation(s)
- Irshad Ahmad
- Department of Physics, University of Agriculture Faisalabad, 38040 Faisalabad, Pakistan
| | - Shazia Shukrullah
- Department of Physics, University of Agriculture Faisalabad, 38040 Faisalabad, Pakistan
| | - Humaira Hussain
- Department of Chemistry, University of Okara, 56300 Okara, Pakistan
| | - Muhammad Yasin Naz
- Department of Physics, University of Agriculture Faisalabad, 38040 Faisalabad, Pakistan
| | - Muhammad Irfan
- Electrical Engineering Department, College of Engineering, Najran University, 61441 Najran, Saudi Arabia
| | - Othman Alyahyawy
- King Abduaziz Hospital, King Abdualziz University, 21589 Jeddah, Saudi Arabia
| | - Morooj A Al Thagafi
- College of Science, Department of Modesty, Jeddah University, 23218 Jeddah, Saudi Arabia
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7
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Geldasa FT, Kebede MA, Shura MW, Hone FG. Experimental and computational study of metal oxide nanoparticles for the photocatalytic degradation of organic pollutants: a review. RSC Adv 2023; 13:18404-18442. [PMID: 37342807 PMCID: PMC10278095 DOI: 10.1039/d3ra01505j] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 05/31/2023] [Indexed: 06/23/2023] Open
Abstract
Photocatalysis is a more proficient technique that involves the breakdown or decomposition of different organic contaminants, various dyes, and harmful viruses and fungi using UV or visible light solar spectrum. Metal oxides are considered promising candidate photocatalysts owing to their low cost, efficiency, simple fabricating method, sufficient availability, and environment-friendliness for photocatalytic applications. Among metal oxides, TiO2 is the most studied photocatalyst and is highly applied in wastewater treatment and hydrogen production. However, TiO2 is relatively active only under ultraviolet light due to its wide bandgap, which limits its applicability because the production of ultraviolet is expensive. At present, the discovery of a photocatalyst of suitable bandgap with visible light or modification of the existing photocatalyst is becoming very attractive for photocatalysis technology. However, the major drawbacks of photocatalysts are the high recombination rate of photogenerated electron-hole pairs, the ultraviolet light activity limitations, and low surface coverage. In this review, the most commonly used synthesis method for metal oxide nanoparticles, photocatalytic applications of metal oxides, and applications and toxicity of different dyes are comprehensively highlighted. In addition, the challenges in the photocatalytic applications of metal oxides, strategies to suppress these challenges, and metal oxide studied by density functional theory for photocatalytic applications are described in detail.
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Affiliation(s)
- Fikadu Takele Geldasa
- Adama Science and Technology University, Department of Applied Physics P. O. Box1888 Adama Ethiopia
- Oda Bultum University, Department of Physics P. O. Box 226, Chiro Ethiopia
| | - Mesfin Abayneh Kebede
- Institute for Nanotechnology and Water Sustainability, College of Science, Engineering and Technology, University of South Africa Florida Science Campus Johannesburg 1710 South Africa
| | - Megersa Wodajo Shura
- Adama Science and Technology University, Department of Applied Physics P. O. Box1888 Adama Ethiopia
| | - Fekadu Gashaw Hone
- Addis Ababa University, Department of Physics P.O. Box: 1176 Addis Ababa Ethiopia
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Development of nanostructured based ZnO@WO3 photocatalyst and its photocatalytic and electrochemical properties: Degradation of Rhodamine B. INT J ELECTROCHEM SC 2023. [DOI: 10.1016/j.ijoes.2023.100055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
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9
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Jiao J, Li Y, Song Q, Wang L, Luo T, Gao C, Liu L, Yang S. Removal of Pharmaceuticals and Personal Care Products (PPCPs) by Free Radicals in Advanced Oxidation Processes. MATERIALS (BASEL, SWITZERLAND) 2022; 15:8152. [PMID: 36431636 PMCID: PMC9695708 DOI: 10.3390/ma15228152] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 11/05/2022] [Accepted: 11/15/2022] [Indexed: 06/16/2023]
Abstract
As emerging pollutants, pharmaceutical and personal care products (PPCPs) have received extensive attention due to their high detection frequency (with concentrations ranging from ng/L to μg/L) and potential risk to aqueous environments and human health. Advanced oxidation processes (AOPs) are effective techniques for the removal of PPCPs from water environments. In AOPs, different types of free radicals (HO·, SO4·-, O2·-, etc.) are generated to decompose PPCPs into non-toxic and small-molecule compounds, finally leading to the decomposition of PPCPs. This review systematically summarizes the features of various AOPs and the removal of PPCPs by different free radicals. The operation conditions and comprehensive performance of different types of free radicals are summarized, and the reaction mechanisms are further revealed. This review will provide a quick understanding of AOPs for later researchers.
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Affiliation(s)
- Jiao Jiao
- Key Laboratory of Pollution Control Chemistry and Environmental Functional Materials for Qinghai-Tibet Plateau of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu 610041, China
| | - Yihua Li
- Key Laboratory of Pollution Control Chemistry and Environmental Functional Materials for Qinghai-Tibet Plateau of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu 610041, China
| | - Qi Song
- Key Laboratory of Pollution Control Chemistry and Environmental Functional Materials for Qinghai-Tibet Plateau of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu 610041, China
| | - Liujin Wang
- State of Environmental Protection Key Laboratory of Synergetic Control and Joint Remediation for Soil & Water Pollution, College of Ecology and Environment, Chengdu University of Technology, Chengdu 610059, China
| | - Tianlie Luo
- State of Environmental Protection Key Laboratory of Synergetic Control and Joint Remediation for Soil & Water Pollution, College of Ecology and Environment, Chengdu University of Technology, Chengdu 610059, China
| | - Changfei Gao
- School of Environmental and Material Engineering, Yantai University, Yantai 264005, China
| | - Lifen Liu
- Key Laboratory of Industrial Ecology and Environmental Engineering, Ministry of Education, School of Ocean Science and Technology, Dalian University of Technology, Panjin 124221, China
| | - Shengtao Yang
- Key Laboratory of Pollution Control Chemistry and Environmental Functional Materials for Qinghai-Tibet Plateau of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu 610041, China
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10
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Grosu EF, Seftel E, Cuykx M, Mertens M, Covaci A, Cool P, Carja G. Efficient degradation and mineralization of diclofenac in water on ZnMe (Me: Al; Co; Ga) layered double hydroxides and derived mixed oxides as novel photocatalysts. CR CHIM 2022. [DOI: 10.5802/crchim.167] [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]
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11
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Zawadzki P. Visible Light-Driven Advanced Oxidation Processes to Remove Emerging Contaminants from Water and Wastewater: a Review. WATER, AIR, AND SOIL POLLUTION 2022; 233:374. [PMID: 36090740 PMCID: PMC9440748 DOI: 10.1007/s11270-022-05831-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Accepted: 08/15/2022] [Indexed: 06/15/2023]
Abstract
The scientific data review shows that advanced oxidation processes based on the hydroxyl or sulfate radicals are of great interest among the currently conventional water and wastewater treatment methods. Different advanced treatment processes such as photocatalysis, Fenton's reagent, ozonation, and persulfate-based processes were investigated to degrade contaminants of emerging concern (CECs) such as pesticides, personal care products, pharmaceuticals, disinfectants, dyes, and estrogenic substances. This article presents a general overview of visible light-driven advanced oxidation processes for the removal of chlorfenvinphos (organophosphorus insecticide), methylene blue (azo dye), and diclofenac (non-steroidal anti-inflammatory drug). The following visible light-driven treatment methods were reviewed: photocatalysis, sulfate radical oxidation, and photoelectrocatalysis. Visible light, among other sources of energy, is a renewable energy source and an excellent substitute for ultraviolet radiation used in advanced oxidation processes. It creates a high application potential for solar-assisted advanced oxidation processes in water and wastewater technology. Despite numerous publications of advanced oxidation processes (AOPs), more extensive research is needed to investigate the mechanisms of contaminant degradation in the presence of visible light. Therefore, this paper provides an important source of information on the degradation mechanism of emerging contaminants. An important aspect in the work is the analysis of process parameters affecting the degradation process. The initial concentration of CECs, pH, reaction time, and catalyst dosage are discussed and analyzed. Based on a comprehensive survey of previous studies, opportunities for applications of AOPs are presented, highlighting the need for further efforts to address dominant barriers to knowledge acquisition.
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Affiliation(s)
- Piotr Zawadzki
- Department of Water Protection, Central Mining Institute, Plac Gwarków 1, 40-166 Katowice, Poland
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Zhang D, Liu Z, Mou R. Preparation and characterization of WO3/ZnO composite photocatalyst and its application for degradation of oxytetracycline in aqueous solution. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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13
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Tsai CK, Lee YC, Nguyen TT, Horng JJ. Levofloxacin degradation under visible-LED photo-catalyzing by a novel ternary Fe-ZnO/WO 3 nanocomposite. CHEMOSPHERE 2022; 298:134285. [PMID: 35304208 DOI: 10.1016/j.chemosphere.2022.134285] [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: 11/30/2021] [Revised: 02/19/2022] [Accepted: 03/07/2022] [Indexed: 06/14/2023]
Abstract
As semiconductor photocatalysts showing their efficient redox ability upon illumination, new development of materials to enhance the pollution degradation is gaining popularity, especially on their oxidation ability. In this study, a highly stable ternary Fe-ZnO/WO3 nanocomposite photocatalyst has been synthesized in order to improve charge transfer of photocatalytic oxidation under 30W LED light (425-470 nm) to efficiency degrade the Levofloxacin (LVF) in the solution. This catalyst was characterized and analyzed by XRD, FE-SEM, HR-TEM, X-ray XPS, UPS, PL, TRPL, LSV, EIS, and Photocurrent. Various important factors for the photodegradation were investigated, including Fe content, initial LVF concentration, catalyst dosage, and solution pH. The optimal conditions were Fe 1.0 wt%, LVF 10 mg L-1, Fe-ZnO/WO3 dosage 0.5 g L-1, and pH 7 for LVF photodegradation up to 96% with a kinetic rate constant of 0.0342 min-1 and were stable in photodegradation efficiency (90%) after five test cycles. In the visible LED light, the activation bandgap was estimated to be 2.75 eV with high electron-hole pair separation and charge transfer from Fe-ZnO to WO3 that could enhance the generation of active species of •OH. Moreover, the more effective charge separation of Fe-ZnO/WO3 were confirmed by lower PL intensity and longer charge carrier lifetime. Fe-ZnO/WO3 also demonstrated the excellent electrochemical properties with high photocurrent and small resistance. For the LVF degradation, 3 possible pathways were proposed with 12 intermediate products. This study demonstrated that the synthesized Fe-ZnO/WO3 could serve as a reliable visible-light responsive photocatalysts with the potential for degrading antibiotics in solution.
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Affiliation(s)
- Cheng-Kuo Tsai
- Department of Safety Health and Environment, National Yunlin University of Science and Technology, Yunlin, 64002, Taiwan; Emergency Toxic Response Information Center, National Yunlin University of Science and Technology, Yunlin, 64002, Taiwan.
| | - Yu-Chin Lee
- Department of Safety Health and Environment, National Yunlin University of Science and Technology, Yunlin, 64002, Taiwan
| | - Thanh Tam Nguyen
- Faculty of Environment, University of Science (VNUHCM), Ho Chi Minh City, 700000, Viet Nam; Vietnam National University Ho Chi Minh City, Ho Chi Minh City, 700000, Viet Nam
| | - Jao-Jia Horng
- Department of Safety Health and Environment, National Yunlin University of Science and Technology, Yunlin, 64002, Taiwan; Emergency Toxic Response Information Center, National Yunlin University of Science and Technology, Yunlin, 64002, Taiwan
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14
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Dong X, Wei Y, Gao J, Liu X, Zhang L, Tong Y, Lu Y. Efficient charge transfer over Cu-doped hexagonal WO3 nanocomposites for rapid photochromic response. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2021.113716] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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15
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Javaid A, Latif S, Imran M, Hussain N, Rajoka MSR, Iqbal HMN, Bilal M. Nanohybrids-assisted photocatalytic removal of pharmaceutical pollutants to abate their toxicological effects - A review. CHEMOSPHERE 2022; 291:133056. [PMID: 34838839 DOI: 10.1016/j.chemosphere.2021.133056] [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: 08/13/2021] [Revised: 11/03/2021] [Accepted: 11/22/2021] [Indexed: 02/08/2023]
Abstract
Advancement in medication by health care sector has undoubtedly improved our life but at the same time increased the chemical burden on our natural ecosystem. The residuals of pharmaceutical products become part of wastewater streams by different sources such as excretion after their usage, inappropriate way of their disposal during production etc. Hence, they are serious health hazards for human, animal, and aquatic lives. Due to rapid urbanization, the increased demand for clean drinking water is a burning global issue. In this regard it is need of the present era to explore efficient materials which could act as photocatalyst for mitigation of pharmaceuticals in wastewater. Nanohybrid as photocatalyst is one of the widely explored class of materials in photocatalytic degradation of such harmful pollutants. Among these nanohybrids; metal based nanohybrids (metals/metal oxides) and carbon based nanohybrids (carbon nanotubes, graphene, fullerenes etc.) have been explored to remove pharmaceutical drugs. Keeping in view the increasing harmful impacts of pharmaceuticals; the sources of pharmaceuticals in wastewater, their health risk factors and their mitigation using efficient nanohybrids as photocatalysts have been discussed in this review.
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Affiliation(s)
- Ayesha Javaid
- Centre for Inorganic Chemistry, School of Chemistry, University of the Punjab, Lahore, 54000, Pakistan
| | - Shoomaila Latif
- School of Physical Sciences, University of the Punjab, Lahore, Pakistan
| | - Muhammad Imran
- Centre for Inorganic Chemistry, School of Chemistry, University of the Punjab, Lahore, 54000, Pakistan
| | - Nazim Hussain
- Centre for Applied Molecular Biology (CAMB), University of the Punjab, Lahore, 53700, Pakistan
| | - Muhammad Shahid Riaz Rajoka
- Department of Food Science and Engineering, College of Chemistry and Chemical Engineering, Shenzhen University, Shenzhen, Guangdong, People's Republic of China
| | - Hafiz M N Iqbal
- Tecnologico de Monterrey, School of Engineering and Sciences, Monterrey, 64849, Mexico.
| | - Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, 223003, China.
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16
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Jiang YY, Chen ZW, Li MM, Xiang QH, Wang XX, Miao HF, Ruan WQ. Degradation of diclofenac sodium using Fenton-like technology based on nano-calcium peroxide. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 773:144801. [PMID: 33582322 DOI: 10.1016/j.scitotenv.2020.144801] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 12/05/2020] [Accepted: 12/20/2020] [Indexed: 06/12/2023]
Abstract
A nano-calcium peroxide (nCaO2) powder with a purity of 89.1% was prepared using an improved traditional method. Then, the as-prepared nCaO2 was used as the source of hydrogen peroxide (H2O2) for the Fenton-like degradation of diclofenac sodium (DCF). The results showed that nCaO2 performed better for DCF removal when compared to nCaO2 prepared by a conventional method and commercial calcium peroxide (CaO2). Further experimental results indicated that 97.5% of DCF could be removed in 180 min at a nCaO2/Fe2+-EDTA/DCF molar ratio of 16/8-8/1, which was more efficient than in the H2O2/EDTA-Fe2+/DCF and nCaO2/Fe2+/DCF systems. The best removal rate of DCF was at pH 6.0, unlike previous claims that stated that the lower the pH in the buffer system, the better the degradation of DCF. In addition, the influence of water quality parameters, such as Cl-, NO3-, SO42-, HCO3-, and humic acid (HA), on DCF removal were evaluated. A free radical masking experiment revealed the existence of hydroxyl radical (OH), superoxide radical (O2-) and singlet oxygen (1O2), and indicated that the degradation of DCF was mainly due to oxidation caused by OH. Electron paramagnetic resonance (EPR) studies for different systems and different active oxygen species were carried out, and it was further confirmed that OH radicals have high intensity in the Fenton-like system based on nCaO2. EPR results also showed that the addition of EDTA can promote the production of OH. According to the identification of the dominant reactive species and GC-MS, the possible theoretical DCF degradation pathways were proposed.
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Affiliation(s)
- Ying-Ying Jiang
- School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, PR China
| | - Zi-Wen Chen
- School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, PR China
| | - Man-Man Li
- School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, PR China
| | - Qiu-Hong Xiang
- School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, PR China
| | - Xi-Xi Wang
- School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, PR China
| | - Heng-Feng Miao
- School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, PR China; Jiangsu Key Laboratory of Anaerobic Biotechnology, Jiangnan University, Wuxi 214122, PR China; Water Treatment Technology and Material Innovation Center, Suzhou University of Science and Technology, Suzhou 215009, PR China; Jiangsu Engineering Laboratory of Biomass Energy and Carbon Reduction Technology, Jiangnan University, Wuxi 214122, PR China.
| | - Wen-Quan Ruan
- School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, PR China; Jiangsu Key Laboratory of Anaerobic Biotechnology, Jiangnan University, Wuxi 214122, PR China; Water Treatment Technology and Material Innovation Center, Suzhou University of Science and Technology, Suzhou 215009, PR China; Jiangsu Engineering Laboratory of Biomass Energy and Carbon Reduction Technology, Jiangnan University, Wuxi 214122, PR China
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Abstract
This review aims to give a general overview of the recent use of tungsten-based catalysts for wide environmental applications, with first some useful background information about tungsten oxides. Tungsten oxide materials exhibit suitable behaviors for surface reactions and catalysis such as acidic properties (mainly Brønsted sites), redox and adsorption properties (due to the presence of oxygen vacancies) and a photostimulation response under visible light (2.6–2.8 eV bandgap). Depending on the operating condition of the catalytic process, each of these behaviors is tunable by controlling structure and morphology (e.g., nanoplates, nanosheets, nanorods, nanowires, nanomesh, microflowers, hollow nanospheres) and/or interactions with other compounds such as conductors (carbon), semiconductors or other oxides (e.g., TiO2) and precious metals. WOx particles can be also dispersed on high specific surface area supports. Based on these behaviors, WO3-based catalysts were developed for numerous environmental applications. This review is divided into five main parts: structure of tungsten-based catalysts, acidity of supported tungsten oxide catalysts, WO3 catalysts for DeNOx applications, total oxidation of volatile organic compounds in gas phase and gas sensors and pollutant remediation in liquid phase (photocatalysis).
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18
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Jalili Z, Tayebee R, Zonoz FM. Eco-friendly synthesis of chromeno[4,3- b]chromenes with a new photosensitized WO 3/ZnO@NH 2-EY nanocatalyst. RSC Adv 2021; 11:18026-18039. [PMID: 35480176 PMCID: PMC9033197 DOI: 10.1039/d0ra09737c] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 04/29/2021] [Indexed: 12/21/2022] Open
Abstract
A new heterogeneous photoredox nanocatalyst WO3/ZnO@NH2-EY (EY: eosin Y) was fabricated and characterized employing some instrumental techniques such as XRD, FT-IR, ICP, TGA, and SEM. The photocatalytic efficiency of the prepared material was investigated in the preparation of various chromeno[4,3-b]chromenes via a simple and practical method. The chromene derivatives were prepared through the condensation of aromatic aldehydes, dimedone, and coumarin under an open-air atmosphere in the presence of a green LED under solventless conditions. The significant advantages of this new method include low reaction time, easy work-up, cost-effective, wide substrate scope, excellent yield, and complete atom economy of the final products. Moreover, the prepared photocatalyst could be frequently recovered up to four times with only a little decrease in the catalytic activity. Furthermore, the progress of the condensation reaction is demonstrated to occur via a radical mechanism, which shows that reactive species such as ˙O2− and OH˙ together with h+ would be involved in the photocatalytic process. Stability and reusability studies also warranty good reproducibility of the nanocatalyst for at least 4 runs. Eventually, a hot filtration test ensured that the nanohybrid catalyst is stable in the reaction medium and its catalytic activity originates from the whole undecomposed conjugated composite. WO3/ZnO@NH2-EY is disclosed in the preparation of chromenes under air in the presence of a green LED. ˙O2−, OH˙, and h+ are proposed as reactive species and hot filtration test assured stability and reusability of the nanocatalyst.![]()
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Affiliation(s)
- Zahra Jalili
- Department of Chemistry, School of Sciences, Hakim Sabzevari University Sabzevar 96179-76487 Iran
| | - Reza Tayebee
- Department of Chemistry, School of Sciences, Hakim Sabzevari University Sabzevar 96179-76487 Iran
| | - Farrokhzad M Zonoz
- Department of Chemistry, School of Sciences, Hakim Sabzevari University Sabzevar 96179-76487 Iran
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19
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Elangovan M, Bharathaiyengar SM, PonnanEttiyappan J. Photocatalytic degradation of diclofenac using TiO 2-CdS heterojunction catalysts under visible light irradiation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:18186-18200. [PMID: 33403641 DOI: 10.1007/s11356-020-11538-w] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Accepted: 11/03/2020] [Indexed: 06/12/2023]
Abstract
The present study reports the photocatalytic degradation of analgesic drug diclofenac using the hydrothermally prepared TiO2-CdS heterojunction catalyst. The results suggest that the prepared catalysts exhibited excellent photocatalytic activity under visible light irradiation. The photodegradation kinetics were well fitted to the pseudo-first-order reaction. The apparent reaction rate constant for TC5 catalyst in the diclofenac degradation was 0.02316 min-1. Mineralisation of diclofenac using TC5 photocatalyst was around 86% within 4 h of irradiation time. The operating parameters such as optimal catalyst dosage, apparent solution pH and the effect of initial diclofenac concentration were also studied using the TC5 catalyst. The role of active species in the degradation mechanism was elucidated and it was found that the hydroxyl radical is the main active species in the diclofenac degradation mechanism. The charge transfer between heterojunction catalysts is facilitated by direct Z-scheme heterojunction structure. The coupled photocatalysts also showed good photochemical stability and reusability over five successive reaction cycles. The tentative degradation pathway has been devised based on LC-MS peaks, and it is found that only m/z 224, m/z 178 and m/z 124 were persisted at the end of the reaction.
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Affiliation(s)
- Mugunthan Elangovan
- Department of Chemical Engineering, National Institute of Technology Karnataka, Surathkal, Mangalore, 575025, India
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20
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Vitiello G, Iervolino G, Imparato C, Rea I, Borbone F, De Stefano L, Aronne A, Vaiano V. F-doped ZnO nano- and meso-crystals with enhanced photocatalytic activity in diclofenac degradation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 762:143066. [PMID: 33127133 DOI: 10.1016/j.scitotenv.2020.143066] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 10/06/2020] [Accepted: 10/12/2020] [Indexed: 06/11/2023]
Abstract
Diclofenac (DCF), a non-steroidal anti-inflammatory drug, is considered one of the most widespread emerging contaminants. Its incidence in water can favor the growth of drug-resistant bacteria and harm aquatic organisms endangering both the human health and the ecosystem. Advanced oxidation processes (AOPs) based on the action of reactive oxygen species are very effective technologies for the removal of this contaminant from water. In this context, ZnO is one of the most studied semiconductors for photocatalytic water treatment. In this work, the photocatalytic activity of fluorine-doped ZnO nano- and meso-crystals synthesized by a hydrothermal approach is reported, exploring the role of a low F atomic concentration (0.25, 0.5 and 1 at. %) on the degradation of DCF in comparison with bare ZnO. All doped samples show high rates of DCF degradation and mineralization, which were realized primarily thanks to their high efficiency in the generation of hydroxyl radicals (OH). The property-structure-function relationships of the materials are investigated by complementary techniques, such as SEM, XRD, EPR, UV-vis DRS and PL, with the aim to evaluate the role of fluorine in determining their morphological, electronic and optical properties.
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Affiliation(s)
- Giuseppe Vitiello
- Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale, Università di Napoli Federico II, P.le Tecchio, 80, I-80125 Napoli, Italy; CSGI, Center for Colloid and Interface Science, via della Lastruccia 3, 50019 Sesto Fiorentino, (FI), Italy
| | - Giuseppina Iervolino
- Dipartimento di Ingegneria Industriale, Università di Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, (Salerno), Italy
| | - Claudio Imparato
- Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale, Università di Napoli Federico II, P.le Tecchio, 80, I-80125 Napoli, Italy
| | - Ilaria Rea
- ISASI-CNR, Istituto di Scienze Applicate e Sistemi Intelligenti-Consiglio Nazionale Ricerche, Via Pietro Castellino 111, 80131 Napoli, Italy
| | - Fabio Borbone
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, via Cinthia, 4, I-80126 Napoli, Italy
| | - Luca De Stefano
- ISASI-CNR, Istituto di Scienze Applicate e Sistemi Intelligenti-Consiglio Nazionale Ricerche, Via Pietro Castellino 111, 80131 Napoli, Italy
| | - Antonio Aronne
- Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale, Università di Napoli Federico II, P.le Tecchio, 80, I-80125 Napoli, Italy.
| | - Vincenzo Vaiano
- CSGI, Center for Colloid and Interface Science, via della Lastruccia 3, 50019 Sesto Fiorentino, (FI), Italy.
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21
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Photocatalytic Applications of Metal Oxides for Sustainable Environmental Remediation. METALS 2021. [DOI: 10.3390/met11010080] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Along with industrialization and rapid urbanization, environmental remediation is globally a perpetual concept to deliver a sustainable environment. Various organic and inorganic wastes from industries and domestic homes are released into water systems. These wastes carry contaminants with detrimental effects on the environment. Consequently, there is an urgent need for an appropriate wastewater treatment technology for the effective decontamination of our water systems. One promising approach is employing nanoparticles of metal oxides as photocatalysts for the degradation of these water pollutants. Transition metal oxides and their composites exhibit excellent photocatalytic activities and along show favorable characteristics like non-toxicity and stability that also make them useful in a wide range of applications. This study discusses some characteristics of metal oxides and briefly outlined their various applications. It focuses on the metal oxides TiO2, ZnO, WO3, CuO, and Cu2O, which are the most common and recognized to be cost-effective, stable, efficient, and most of all, environmentally friendly for a sustainable approach for environmental remediation. Meanwhile, this study highlights the photocatalytic activities of these metal oxides, recent developments, challenges, and modifications made on these metal oxides to overcome their limitations and maximize their performance in the photodegradation of pollutants.
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22
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Ben Soltan W, Wang W, Sun J, Toupance T, Yu G, Li F. Incorporating W cations into ZnO nanosheets: an efficient method towards ZnO/ZnWO 4 photocatalysts for highly effective degradation of organic compounds under UV and visible-light irradiation. NEW J CHEM 2021. [DOI: 10.1039/d1nj00727k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
Abstract
Novel ZnO/ZnWO4 photocatalysts were synthesized for the removal of RhB dye with an excellent photocatalytic performance.
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Affiliation(s)
- Wissem Ben Soltan
- National Engineering Laboratory of Coal-fired Pollutants Emission Reduction
- School of Energy and Power Engineering
- Shandong University
- Jinan 250061
- China
| | - Wenlong Wang
- National Engineering Laboratory of Coal-fired Pollutants Emission Reduction
- School of Energy and Power Engineering
- Shandong University
- Jinan 250061
- China
| | - Jing Sun
- National Engineering Laboratory of Coal-fired Pollutants Emission Reduction
- School of Energy and Power Engineering
- Shandong University
- Jinan 250061
- China
| | - Thierry Toupance
- Institut des Sciences Moléculaires
- ISM UMR 5255 CNRS
- Université de Bordeaux
- F-33405 Talence
- France
| | - Guanqun Yu
- National Engineering Laboratory of Coal-fired Pollutants Emission Reduction
- School of Energy and Power Engineering
- Shandong University
- Jinan 250061
- China
| | - Faqi Li
- National Engineering Laboratory of Coal-fired Pollutants Emission Reduction
- School of Energy and Power Engineering
- Shandong University
- Jinan 250061
- China
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Korkmaz I, Sakir M, Sarp G, Salem S, Torun I, Volodkin D, Yavuz E, Onses MS, Yilmaz E. Fabrication of superhydrophobic Ag@ZnO@Bi2WO6 membrane disc as flexible and photocatalytic active reusable SERS substrate. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129258] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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24
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Tavakoli-Azar T, Mahjoub AR, Sadjadi MS, Farhadyar N, Sadr MH. Synthesis and Characterization of a Perovskite Nanocomposite of CdTiO3@S with Orthorhombic Structure: Investigation of Photoluminescence Properties and Its Photocatalytic Performance for the Degradation of Congo Red and Crystal Violet Under Sunlight. J Inorg Organomet Polym Mater 2020. [DOI: 10.1007/s10904-020-01762-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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25
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Mehmood CT, Zhong Z, Zhou H, Zhang C, Xiao Y. Immobilizing a visible light-responsive photocatalyst on a recyclable polymeric composite for floating and suspended applications in water treatment. RSC Adv 2020; 10:36349-36362. [PMID: 35517934 PMCID: PMC9057039 DOI: 10.1039/d0ra06864k] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Accepted: 09/22/2020] [Indexed: 11/21/2022] Open
Abstract
A visible light responsive TiO2/Ag3PO4 (10 : 1) nanocomposite was prepared and successfully immobilized (12 wt%) in a spherical polymeric matrix consisting of polysulfone and alginate (10 : 6). The resulted beads featured a sponge-like structure with interconnected macrovoids and micropores, and showed high adsorption and visible-light photocatalytic activity towards various wastewater pollutants, including the widely used dye - methylene blue (k = 0.0321 min-1), and two emerging pharmaceutical contaminants - diclofenac (k = 0.018 min-1) and triclosan (k = 0.052 min-1). As determined, the ˙OH radical and h+ are the primary reactive oxygen species responsible for the photodegradation. The composite photocatalytic beads are also effective in bacterial inactivation and degradation of acyl-homoserine lactones (AHLs), the bacterial quorum sensing autoinducers triggering biofilms, thus exhibiting a promising future in wastewater disinfection and biofilm retardation. Additionally, these beads could be used in inter-switchable suspended or buoyant forms, and be effectively regenerated by H2O2 treatment, and used for multiple cycles without any significant loss in photoactivity. With these unique features, the prepared visible-light photocatalytic beads could be easily applied in large-scale water and wastewater treatment systems.
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Affiliation(s)
- Ch Tahir Mehmood
- Department of Civil and Environmental Engineering, College of Engineering, Shantou University Shantou Guangdong 515063 China
| | - Ziyi Zhong
- Department of Chemical Engineering, Guangdong Technion - Israel Institute of Technology Shantou Guangdong 515063 China
| | - Hua Zhou
- Guangdong Guangye Environmental Protection Industrial Group Co., Ltd. Guangzhou Guangdong China
| | - Chenchen Zhang
- Department of Chemical Engineering, Guangdong Technion - Israel Institute of Technology Shantou Guangdong 515063 China
| | - Yeyuan Xiao
- Department of Civil and Environmental Engineering, College of Engineering, Shantou University Shantou Guangdong 515063 China
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Behravesh S, Mirghaffari N, Alemrajabi AA, Davar F, Soleimani M. Photocatalytic degradation of acetaminophen and codeine medicines using a novel zeolite-supported TiO 2 and ZnO under UV and sunlight irradiation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:26929-26942. [PMID: 32385818 DOI: 10.1007/s11356-020-09038-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 04/22/2020] [Indexed: 06/11/2023]
Abstract
Pharmaceutical compounds are considered as emerging contaminants in the aquatic environments that are not easily eliminated by conventional treatment processes. In the present study, the photocatalytic oxidation of acetaminophen and codeine medicines under UV and solar irradiation was investigated in the aqueous solutions using a novel synthesized zeolite from stone cutting sludge as a support for TiO2 and ZnO. The effect of photocatalyst synthesis conditions including catalyst dose, mixing time, calcination time, and temperature on the efficiency of the pharmaceutical removal were optimized using Taguchi process optimization method. The prepared photocatalysts were characterized using X-ray diffractometer, field emission scanning electron microscopy, energy-dispersive X-ray, the BET surface area, and the Fourier transformation infrared. The results indicated that the performance of ZnO-zeolite for the removal of acetaminophen-codeine under UV and solar radiation with 58.7% and 45.7% was better than that of TiO2-zeolite with 44.3% and 39.2% efficiency, respectively. Removal efficiency under UV and solar radiation was comparable, suggesting that sunlight could be a promising source for treatment of contaminated water by acetaminophen and codeine using photocatalytic degradation. Regeneration of the prepared photocatalysts after 4 cycles revealed a slight decrease in their efficiency. Overall, photocatalytic degradation of the medicines in the water and wastewater using the ZnO-zeolite and TiO2-zeolite could be developed as an efficient treatment process.
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Affiliation(s)
- Samira Behravesh
- Department of Natural Resources, Isfahan University of Technology, Isfahan, Iran
| | | | - Ali Akbar Alemrajabi
- Department of Mechanical Engineering, Isfahan University of Technology, Isfahan, Iran
| | - Fatemeh Davar
- Department of Chemistry, Isfahan University of Technology, Isfahan, Iran
| | - Mohsen Soleimani
- Department of Natural Resources, Isfahan University of Technology, Isfahan, Iran
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27
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Sabri M, Habibi-Yangjeh A, Ghosh S. Novel ZnO/CuBi2O4 heterostructures for persulfate-assisted photocatalytic degradation of dye contaminants under visible light. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2020.112397] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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