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He Y, Men D, Pang Y, Guo H, Gu J, Li A. Sample Fabrication of BiOCl Nanosheets with Low Specific Surface Area for Efficient Photocatalytic Degradation of Organic Wastewater. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024. [PMID: 39073836 DOI: 10.1021/acs.langmuir.4c01507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/30/2024]
Abstract
BiOCl photocatalyst with excellent performance has been prepared by a simple liquid-solid phase transition method. Three BiOCl-x (x = 0.5, 0.75, 1.0) photocatalysts were obtained by changing the amount of HCl in the preparation process. The main dominant crystal planes are (001), (002), and (003). Their forbidden bandwidths are reduced to 2.81, 2.89, and 2.84 eV. The samples were characterized by X-ray diffractometer, high-resolution field emission scanning electron microscopy, transmission electron microscopy, high-resolution transmission electron microscopy, X-ray photoelectron spectroscopy, Fourier infrared spectrometry, UV-vis diffuse reflection spectrometer, and UV-vis spectrophotometer. The degradation mechanism of BiOCl-x on Rhodamine B(RhB) has been investigated by quenching experiments on active materials. ·O2- was the primary degradation agent. When the dosage of HCl was 0.75 mL, the degradation effect of RhB was the best under the same experimental conditions. In visible light, RhB was almost completely degraded within 15 min, demonstrating an excellent photocatalytic degradation efficiency.
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Affiliation(s)
- Yingxiang He
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, Hebei, China
| | - Dongsheng Men
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, Hebei, China
| | - Yuxiang Pang
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, Hebei, China
| | - Huaijiao Guo
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, Hebei, China
| | - Jianmin Gu
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, Hebei, China
- Key Laboratory of Metastable Materials Science and Technology(MMST), Yanshan University, Qinhuangdao 066004, Hebei, China
| | - Adan Li
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, Hebei, China
- Hebei Provincial Key Laboratory of Nano-Biotechnology, Yanshan University, Qinhuangdao 066004, Hebei, China
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Goryunova K, Gahramanli Y, Gurbanova R. Adsorption properties of silica aerogel-based materials. RSC Adv 2023; 13:18207-18216. [PMID: 37333790 PMCID: PMC10273323 DOI: 10.1039/d3ra02462h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 06/07/2023] [Indexed: 06/20/2023] Open
Abstract
Silica aerogels have piqued the interest of both scientists and industry in recent decades due to their unusual properties such as low density, high porosity, low thermal and acoustic conductivity, high optical transparency, and strong sorption activity. Aerogels may be created via two-step sol-gel synthesis from different organosilicon compounds known as precursors. Various drying processes are employed to remove the solvent from the gel pores, the most common of which is the supracritical drying method. This paper highlights the potential of silica aerogels and their modifications as adsorbents for environmental cleanup based on recent researches. Following an introduction of the characteristics of aerogels, production techniques, and different categorization possibilities, the study is organized around their potential use as adsorbents.
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Affiliation(s)
- Kristina Goryunova
- Geotechnological Problems of Oil, Gas and Chemistry Research Institute Baku City Azerbaijan
| | - Yunis Gahramanli
- Chemistry and Inorganic Substances Technology Department, Azerbaijan State Oil and Industry University Baku City Azerbaijan
| | - Rena Gurbanova
- Chemistry and Inorganic Substances Technology Department, Azerbaijan State Oil and Industry University Baku City Azerbaijan
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3
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Zhao Y, Yang H, Hao H, Zhu F, Zhang G, Bi J, Yan S, Hou H. Construction of an S-Scheme Ag 2MoO 4/ZnFe 2O 4 Nanofiber Heterojunction for Enhanced Photoelectrocatalytic Activity under Visible Light Irradiation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:13437-13447. [PMID: 36288509 DOI: 10.1021/acs.langmuir.2c01881] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The removal of organic dyes and pathogenic bacteria from contaminated water remains a significant challenge. In the present study, S-type heterojunction Ag2MoO4/ZnFe2O4 (AMO/ZFO) composite nanofibers were synthesized by electrospinning and co-precipitation and fabricated into photoanodes. It is found that the constructed S-type heterojunction of AMO/ZFO composites effectively inhibits the recombination of photogenerated carriers, in addition to the benefits of more exposed active sites and a greater specific surface area. When several properties are improved, AMO/ZFO composites exhibit excellent photoelectrocatalytic performance. The results demonstrate that under visible light irradiation, the photoelectrocatalytic degradation rate of AMO/ZFO-3 to methylene blue reached 76.2% within 50 min, and the killing rate of Salmonella was 83.6% within 80 min. The enhanced photoelectrocatalytic activity was due to the synergy of both electrochemical and photocatalytic effects. More importantly, after four testing cycles, AMO/ZFO-3 still has a better ability to kill pathogenic bacteria and degrade organic dyes due to its high stability. This work provides a feasible method for oxidizing organic dyes and pathogenic bacteria.
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Affiliation(s)
- Yirui Zhao
- Liaoning Key Lab for Aquatic Processing Quality and Safety, Dalian Polytechnic University, Dalian116034, China
| | - Hang Yang
- Liaoning Key Lab for Aquatic Processing Quality and Safety, Dalian Polytechnic University, Dalian116034, China
- Department of Inorganic Nonmetallic Materials Engineering, Dalian Polytechnic University, Dalian116034, China
| | - Hongshun Hao
- Liaoning Key Lab for Aquatic Processing Quality and Safety, Dalian Polytechnic University, Dalian116034, China
- Department of Inorganic Nonmetallic Materials Engineering, Dalian Polytechnic University, Dalian116034, China
| | - Fuxiao Zhu
- Liaoning Key Lab for Aquatic Processing Quality and Safety, Dalian Polytechnic University, Dalian116034, China
- Department of Inorganic Nonmetallic Materials Engineering, Dalian Polytechnic University, Dalian116034, China
| | - Gongliang Zhang
- Liaoning Key Lab for Aquatic Processing Quality and Safety, Dalian Polytechnic University, Dalian116034, China
| | - Jingran Bi
- Liaoning Key Lab for Aquatic Processing Quality and Safety, Dalian Polytechnic University, Dalian116034, China
| | - Shuang Yan
- Department of Inorganic Nonmetallic Materials Engineering, Dalian Polytechnic University, Dalian116034, China
| | - Hongman Hou
- Liaoning Key Lab for Aquatic Processing Quality and Safety, Dalian Polytechnic University, Dalian116034, China
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Arumugam M, Seralathan KK, Praserthdam S, Tahir M, Praserthdam P. Synthesis of novel graphene aerogel encapsulated bismuth oxyiodide composite towards effective removal of methyl orange azo-dye under visible light. CHEMOSPHERE 2022; 303:135121. [PMID: 35623428 DOI: 10.1016/j.chemosphere.2022.135121] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Revised: 05/12/2022] [Accepted: 05/23/2022] [Indexed: 06/15/2023]
Abstract
Development of novel and eco-friendly composite photocatalysts for the efficient removal of contaminants from wastewater is the need of the hour. In this study, visible light responsive novel graphene aerogel/bismuth oxyiodide (GA/BiOI) composite was synthesized via low-temperature solvothermal method. The synthesized GA/BiOI composite was tested for methyl orange (MO) azo-dye degradation under visible light. The graphene aerogel nanosheets were wrapped onto the surface of the each individual BiOI microsphere, which encourages the interconnection charge transfer process. The light absorption properties of GA/BiOI composite were increased with the addition of graphene aerogel. The optimal 5%-GA/BiOI composite displayed higher MO removal efficiency, which is ∼2 fold more than the bare BiOI photocatalyst. This enhanced photocatalytic activity was on account of lower recombination rate of charge carriers, improved light absorption, and the high surface area. In addition, the 5%-GA/BiOI composite showed good stability until 3 cycles without deactivation. The plausible MO degradation mechanism was also proposed over GA/BiOI under visible light. This work provides a new perspective on the design and synthesis of graphene aerogel-based composite for environmental applications.
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Affiliation(s)
- Malathi Arumugam
- Center of Excellence on Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Kamala-Kannan Seralathan
- Division of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, Jeonbuk, 54596, South Korea
| | - Supareak Praserthdam
- High-Performance Computing Unit (CECC-HCU), Center of Excellence on Catalysis and Catalytic Reaction Engineering (CECC), Chulalongkorn University, Bangkok, 10330, Thailand
| | - Muhammad Tahir
- Chemical and Petroleum Engineering Department, UAE University, P.O. Box 15551, Al Ain, United Arab Emirates
| | - Piyasan Praserthdam
- Center of Excellence on Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand.
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Zhong W, Fu W, Sun S, Wang L, Liu H, Wang J. Characterization of TiO 2 and an as-prepared TiO 2/SiO 2 composite and their photocatalytic performance for the reduction of low-concentration N-NO 3- in water. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:40585-40598. [PMID: 35084675 DOI: 10.1007/s11356-022-18793-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 01/14/2022] [Indexed: 06/14/2023]
Abstract
Excessive N-NO3- water pollution has become a widespread and serious problem that threatens human and ecosystem health. Here, a TiO2/SiO2 composite photocatalyst was prepared via the sol-gel/hydrothermal method. TiO2 and TiO2/SiO2 were characterized by X-ray diffraction (XRD), UV-Vis differential reflectance spectroscopy (DRS), Fourier infrared (FT-IR) spectroscopy, X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and energy-dispersive X-ray spectroscopy (EDS). Afterward, the photocatalytic performance of TiO2 and TiO2/SiO2 to reduce low nitrate concentrations (30 mgN L-1) under UV light was evaluated and the effects of different factors on this process were investigated, after which the reaction conditions were optimized. Removal rates of up to 99.93% were achieved at a hole scavenger (formic acid) concentration of 0.6 mL L-1, a CO2 flow rate of 0.1 m3 h-1, and a TiO2 concentration of 0.9 g L-1. In contrast, TiO2/SiO2 at a 1.4 g L-1 concentration and a TiO2 load rate of 40% achieved a removal rate of 83.48%, but with more than 98% of nitrogen generation rate. NO2- and NH4+ were the minor products, whereas N2 was the main product.
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Affiliation(s)
- Wanzhen Zhong
- College of Resources and Environment, Shandong Agricultural University, Tai'an, 271018, People's Republic of China
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao, 266000, China
| | - Weizhang Fu
- College of Resources and Environment, Shandong Agricultural University, Tai'an, 271018, People's Republic of China.
| | - Shujuan Sun
- College of Resources and Environment, Shandong Agricultural University, Tai'an, 271018, People's Republic of China.
| | - Lingsheng Wang
- College of Resources and Environment, Shandong Agricultural University, Tai'an, 271018, People's Republic of China
| | - Huaihao Liu
- College of Resources and Environment, Shandong Agricultural University, Tai'an, 271018, People's Republic of China
| | - Junzhi Wang
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao, 266000, China
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6
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Motamedi M, Yerushalmi L, Haghighat F, Chen Z. Recent developments in photocatalysis of industrial effluents ։ A review and example of phenolic compounds degradation. CHEMOSPHERE 2022; 296:133688. [PMID: 35074327 DOI: 10.1016/j.chemosphere.2022.133688] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 01/16/2022] [Accepted: 01/17/2022] [Indexed: 06/14/2023]
Abstract
Industrial expansion and increased water consumption have created water scarcity concerns. Meanwhile, conventional wastewater purification methods have failed to degrade recalcitrant pollutants efficiently. The present review paper discusses the recent advances and challenges in photocatalytic processes applied for industrial effluents treatment, with respect to phenolic compounds degradation. Key operational parameters including the catalyst loading, light intensity, initial pollutants concentration, pH, and type and concentrations of oxidants are evaluated and discussed. Compared to the other examined controlling parameters, pH has the highest effect on the photo-oxidation of contaminants by means of the photocatalyst ionization degree and surface charge. Furthermore, major phenolic compounds derived from industrial sources are comprehensively presented and the applicability of photocatalytic processes and the barriers in practical applications, including high energy demand, technical challenges, photocatalyst stability, and recyclability have been explored. The importance of energy consumption and operational costs for realistic large-scale processes are also discussed. Finally, research gaps in this area and the suggested direction for improving degradation efficiencies in industrial applications are presented. In the light of these premises, selective degradation processes in real water matrices such as untreated sewage are proposed.
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Affiliation(s)
- Mahsa Motamedi
- Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, H3G 1M8, Canada
| | - Laleh Yerushalmi
- Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, H3G 1M8, Canada
| | - Fariborz Haghighat
- Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, H3G 1M8, Canada
| | - Zhi Chen
- Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, H3G 1M8, Canada.
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7
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Synthesis and characterization of novel M@ZnO/UiO-66 (M = Ni, Pt, Pd and mixed Pt&Pd) as an efficient photocatalyst under solar light. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132580] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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8
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Yang H, Hao H, Zhao Y, Hu Y, Min J, Zhang G, Bi J, Yan S, Hou H. An efficient construction method of S-scheme Ag2CrO4/ZnFe2O4 nanofibers heterojunction toward enhanced photocatalytic and antibacterial activity. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128603] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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9
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Abdollahi B, Farshnama S, Abbasi Asl E, Najafidoust A, Sarani M. Cu(BDC) Metal-organic Framework (MOF)-based Ag2CrO4 Heterostructure with Enhanced Solar-light Degradation of Organic Dyes. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109236] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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10
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Abdollahi B, Najafidoust A, Abbasi Asl E, Sillanpaa M. Fabrication of ZiF-8 metal organic framework (MOFs)-based CuO-ZnO photocatalyst with enhanced solar-light-driven property for degradation of organic dyes. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2021.103444] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
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11
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Nur Indah Sari F, Syue MT, Purba Y, Ting JM. Fabrication of binary Ag3PO4 photocatalysts for enhanced photocatalytic degradation: Effect of PEDOT hole conductor and hybridized 1 T-containing MoS2 electron conductor. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119650] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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12
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Sarani M, Bazookar Joshaghani A, Najafidoust A, Abbasi Asl E, Kazemi Hakki H, Bananifard H, Sillanpaa M. Sun-light driven photo degradation of organic dyes from wastewater on precipitation Ag2CrO4 over SiO2-aerogel and nano silica. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2021.108877] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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13
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Impact of Doping and Additive Applications on Photocatalyst Textural Properties in Removing Organic Pollutants: A Review. Catalysts 2021. [DOI: 10.3390/catal11101160] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
The effect of ion doping and the incorporation of additives on photocatalysts’ textural properties have been reviewed. Generally, it can be summarised that ion doping and additives have beneficial effects on photocatalytic efficiency and not all have an increase in the surface area. The excessive amount of dopants and additives will produce larger aggregated particles and also cover the mesoporous structures, thereby increasing the pore size (Pd) and pore volume (Pv). An excessive amount of dopants also leads to visible light shielding effects, thus influence photocatalytic performance. Ion doping also shows some increment in the surface areas, but it has been identified that synergistic effects of the surface area, porosity, and dopant amount contribute to the photocatalytic performance. It is therefore important to understand the effect of doping and the application of additives on the textural properties of photocatalysts, thus, their performance. This review will provide an insight into the development of photocatalyst with better performance for wastewater treatment applications.
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Yan X, Qian J, Pei X, Zhou L, Ma R, Zhang M, Du Y, Bai L. Enhanced photodegradation of doxycycline (DOX) in the sustainable NiFe 2O 4/MWCNTs/BiOI system under UV light irradiation. ENVIRONMENTAL RESEARCH 2021; 199:111264. [PMID: 33974840 DOI: 10.1016/j.envres.2021.111264] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 04/16/2021] [Accepted: 04/24/2021] [Indexed: 05/27/2023]
Abstract
In this study, a magnetic NiFe2O4/MWCNTs/BiOI composite were fabricated and applied for enhanced and sustainable photocatalytic degradation of doxycycline (DOX) under UV light irradiation. The as-synthesized material was characterized by a series of techniques and its photocatalytic property was assessed via a couple of batch tests. With the pH at 3.0 and NiFe2O4/MWCNTs/BiOI loading of 1.5 g L-1, the DOX degradation (at 45 mg L-1) efficiency could achieve 92.18% with the reaction rate constant k of 0.0072 min-1. The high mineralization of DOX suggests the strong oxidation of both the parent pollutant and the intermediary products in the ternary catalyst system. DRS spectra indicated that compared with BiOI, the introduction of NiFe2O4 and MWCNTs reduces the band gap energy of the NiFe2O4/MWCNTs/BiOI. The quenching test illustrates that h+, OH and O2- all functioned in the developed photocatalytic system, where O2- and h+ play the dominant roles in DOX degradation. The more efficient electron-h+ separation and more oxidizing species induced by UV light resulted in the significant improvement of DOX abatement in the developed coupling system compared with that on either BiOI or NiFe2O4/MWCNTs. The magnetic property of NiFe2O4/MWCNTs/BiOI enables its easy separation of the solid catalyst from the reaction solution and the sustainable application in the photocatalysis. Based on the intermediates of DOX decomposition identified by UPLC-MS, the possible degradation routes were proposed accordingly.
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Affiliation(s)
- Xueqian Yan
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi 'an, 710072, Shaanxi, China
| | - Jin Qian
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi 'an, 710072, Shaanxi, China.
| | - Xiangjun Pei
- State Key Laboratory of Geological Disaster Prevention and Geological Environment Protection,Chengdu, 610000, Sichuan, China
| | - Lihong Zhou
- State Key Laboratory of Geological Disaster Prevention and Geological Environment Protection,Chengdu, 610000, Sichuan, China
| | - Rui Ma
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi 'an, 710072, Shaanxi, China
| | - Mingkuan Zhang
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi 'an, 710072, Shaanxi, China
| | - Yufei Du
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi 'an, 710072, Shaanxi, China
| | - Linqin Bai
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi 'an, 710072, Shaanxi, China
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Franco P, Cardea S, Tabernero A, De Marco I. Porous Aerogels and Adsorption of Pollutants from Water and Air: A Review. Molecules 2021; 26:4440. [PMID: 34361593 PMCID: PMC8347855 DOI: 10.3390/molecules26154440] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 07/12/2021] [Accepted: 07/21/2021] [Indexed: 11/22/2022] Open
Abstract
Aerogels are open, three-dimensional, porous materials characterized by outstanding properties, such as low density, high porosity, and high surface area. They have been used in various fields as adsorbents, catalysts, materials for thermal insulation, or matrices for drug delivery. Aerogels have been successfully used for environmental applications to eliminate toxic and harmful substances-such as metal ions or organic dyes-contained in wastewater, and pollutants-including aromatic or oxygenated volatile organic compounds (VOCs)-contained in the air. This updated review on the use of different aerogels-for instance, graphene oxide-, cellulose-, chitosan-, and silica-based aerogels-provides information on their various applications in removing pollutants, the results obtained, and potential future developments.
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Affiliation(s)
- Paola Franco
- Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy; (P.F.); (S.C.)
| | - Stefano Cardea
- Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy; (P.F.); (S.C.)
| | - Antonio Tabernero
- Department of Chemical Engineering, University of Salamanca, Plaza los Caídos s/n, 37008 Salamanca, Spain
| | - Iolanda De Marco
- Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy; (P.F.); (S.C.)
- Research Centre for Biomaterials BIONAM, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy
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16
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Puig J, de Castro Alves L, García Acevedo P, Arnosa Prieto A, Yáñez Vilar S, Teijeiro-Valiño C, Piñeiro Y, Hoppe CE, Rivas J. Controlling the structure and photocatalytic properties of three—dimensional aerogels obtained by simultaneous reduction and self-assembly of BiOI/GO aqueous colloidal dispersions. NANO EXPRESS 2021. [DOI: 10.1088/2632-959x/abfd8b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Abstract
Water pollution affects all living habitats, since it is the most basic element that sustains all life forms and, as an exceptional solvent, it readily makes any compound available for living cells, either nutrients or noxious substances. Elimination of molecular contaminants from water quality is one of the most challenging technical problems that conventional treatments like flocculation and filtration fail short to defeat. Particulate photocatalysts, used to degrade contaminants, have the main drawback of their recovery from the water matrices. The inclusion of photocatalytic nanoparticles (NPs) into a large supporting framework, is presented as an innovative approach aiming to ensure a facile separation from water. To this end, three-dimensional (3D) aerogels with photocatalytic properties were prepared by a simple and scalable method based on the reduction—induced self-assembly of graphene oxide (GO) in the presence of BiOI nanoparticles. With the help of ascorbic acid, as a green reducing agent, partial reduction of GO into reduced graphene oxide (RGO) and self-assembly of both kinds of nanostructures into a porous monolith was achieved. BiOI doped RGO aerogels were further stabilized and morphologically controlled using poly (ethylene glycol) as stabilizer. The photocatalytic performance of these aerogels was evaluated by following the discoloration of methylene blue (MB) solution, under visible light irradiation, showing that structure and dispersion degree of NPs to be fundamental variables. Hence, this methodology is proposed to produce hybrid aerogels with controlled morphology and photocatalytic performance that has the potential to be used in water cleaning procedures.
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17
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Nasrollahzadeh M, Akbari R, Sakhaei S, Nezafat Z, Banazadeh S, Orooji Y, Hegde G. Polymer supported copper complexes/nanoparticles for treatment of environmental contaminants. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115668] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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18
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Mousavi M, Ghasemi JB. Novel visible-light-responsive Black-TiO2/CoTiO3 Z-scheme heterojunction photocatalyst with efficient photocatalytic performance for the degradation of different organic dyes and tetracycline. J Taiwan Inst Chem Eng 2021. [DOI: 10.1016/j.jtice.2021.04.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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19
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Intensification of Bi7O9I3 nanoparticles distribution on ZnO via ultrasound induction approach used in photocatalytic water treatment under solar light irradiation. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2020.116086] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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20
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Narenuch T, Senasu T, Chankhanittha T, Nanan S. Solvothermal synthesis of CTAB capped and SDS capped BiOCl photocatalysts for degradation of rhodamine B (RhB) dye and fluoroquinolone antibiotics. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2020.121824] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Bananifard H, Ashjari M, Niazi Z, Etemadi M. Efficient reinforcement of wet gel by embedded polymer as newly approach for silica aerogel. POLYM ADVAN TECHNOL 2020. [DOI: 10.1002/pat.5041] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Hamed Bananifard
- Department of Chemical Engineering Faculty of Engineering, University of Kashan Kashan Iran
| | - Mohsen Ashjari
- Department of Chemical Engineering Faculty of Engineering, University of Kashan Kashan Iran
- Nanostructures and Biopolymers Research Lab Institute of Nanoscience and Nanotechnology, University of Kashan Kashan Iran
| | - Zahra Niazi
- Nanostructures and Biopolymers Research Lab Institute of Nanoscience and Nanotechnology, University of Kashan Kashan Iran
| | - Mahdi Etemadi
- Department of Chemical Engineering Faculty of Engineering, University of Kashan Kashan Iran
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22
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Duresa LW, Kuo DH, Huang HN. Room-temperature synthesized In-BiOBr 1-xI x nanosheets with visible-light-driven superior photocatalytic activity: Degradation of dye/non-dye organic pollutants for environmental remediation. CHEMOSPHERE 2020; 258:127374. [PMID: 32554021 DOI: 10.1016/j.chemosphere.2020.127374] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 06/07/2020] [Accepted: 06/08/2020] [Indexed: 06/11/2023]
Abstract
Photocatalysis is extensively investigated as a green, efficient and promising technique for environmental remediation. In this study, a series of template free In-doped BiOBrxI1-x photocatalysts have been successfully prepared at room temperature and characterized by various methods. Complete degradation of negatively charged methyl Orange, positively charged Rhodamine B and Methylene Blue organic dyes, and neutral and colorless non-dye organic compound of furfural was attained. The flat band potential offered the possibility of reduction of dissolved O2 to O2.- in the conduction band while the trapping experiment identified the (O2.-)is the main radical species followed by h+ for the photodegradation. In-BiOBrI-0.4 had an excellent photocatalytic degradation activity which could be due to the synergetic effect between metal ion doping and solid solution formation. It further promotes visible light-harvesting ability and photoinduced charge carrier separation efficiency. The order of the reaction rate was determined and the mechanism was proposed. This work can lay a base for the design of effective photocatalyst toward environmental remediation.
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Affiliation(s)
- Lalisa Wakjira Duresa
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, No.43, Sec. 4, Keelung Road, Taipei, 10607, Taiwan
| | - Dong-Hau Kuo
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, No.43, Sec. 4, Keelung Road, Taipei, 10607, Taiwan.
| | - Hsiu-Ni Huang
- Instrumentation Center, National Taiwan Normal University, No.162, Sec. 1, Heaping East Road, Taipei, 10607, Taiwan
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23
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All-solid-state Z-scheme BiOX(Cl, Br)-Au-CdS heterostructure: Photocatalytic activity and degradation pathway. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.124778] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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24
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Bargozideh S, Tasviri M, Ghabraei M. Effect of carbon nanotubes loading on the photocatalytic activity of BiSI/BiOI as a novel photocatalyst. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:36754-36764. [PMID: 32564326 DOI: 10.1007/s11356-020-09759-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Accepted: 06/15/2020] [Indexed: 06/11/2023]
Abstract
In this paper, a simple hydrothermal method is employed to synthesize BiSI/BiOI/CNT nanocomposite with enhanced photocatalytic activity. The properties of the prepared samples were studied using nitrogen adsorption-desorption isotherm, photoluminescence, X-ray diffraction analysis (XRD), field-emission scanning electron microscopy (FE-SEM), energy dispersive spectrometry (EDS), UV-vis diffuse reflectance spectroscopy (DRS), and electrochemical impedance spectroscopy (EIS). The loading amount of CNT had a significant influence on the photoactivity of the BiSI/BiOI/CNT composite. In this study, several BiSI/BiOI/CNT nanocomposite samples with various mass ratios of CNT were made-up for further investigation to scrutinize the influence of CNT content on the photocatalytic activity of the nanocomposite. Photocatalysis measurements revealed that 2% Wt of CNT possesses the highest photocatalytic activity in the visible light irradiation with 93.1% photodegradation of malachite green (MG) as a test dye. The enhanced photocatalytic performance can be due to the large surface area, excellent conductivity performance, and high absorption ability in the visible light region. The synergistic effect of the factors mentioned above makes BiSI/BiOI/CNT nanocomposite a high-performance photocatalyst under visible light irradiation. An appropriate reaction mechanism of dye photodegradation has suggested according to the result of active species trapping experiments.
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Affiliation(s)
- Samin Bargozideh
- Department of Physical Chemistry, Faculty of Chemistry and Petroleum Sciences, Shahid Beheshti University, P. O. Box, Tehran, 19839-63113, Iran
| | - Mahboubeh Tasviri
- Department of Physical Chemistry, Faculty of Chemistry and Petroleum Sciences, Shahid Beheshti University, P. O. Box, Tehran, 19839-63113, Iran.
| | - Mana Ghabraei
- Department of Physical Chemistry, Faculty of Chemistry and Petroleum Sciences, Shahid Beheshti University, P. O. Box, Tehran, 19839-63113, Iran
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25
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Hasanpour M, Hatami M. Photocatalytic performance of aerogels for organic dyes removal from wastewaters: Review study. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113094] [Citation(s) in RCA: 109] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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26
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Peyman VA, Azizian S. A Sharp Jump in Photocatalytic Activity of Elemental Sulfur for Dye Degradation in Alkaline Solution. Photochem Photobiol 2020; 96:1191-1199. [PMID: 32585740 DOI: 10.1111/php.13301] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Accepted: 06/16/2020] [Indexed: 02/01/2023]
Abstract
Elemental sulfur is a low-cost and abundant substance as one of the largest by-products of the oil industry which was widely used in many industrial activities. Cyclo-octasulfur (S8 ) is one of the sulfur allotropes that is a very stable substance in standard conditions. In this study, we report a low-cost and fast method for the degradation of methyl violet in water under visible light and also sunlight by using elemental sulfur (S8 ). The results show that sulfur is a good photocatalyst which operates under visible light and can be utilized for degradation of methyl violet. The photocatalytic degradation of methyl violet in acidic, neutral, and alkaline media was investigated, and it was found that the photocatalytic efficiency increases dramatically in alkaline solution. The effects of the initial concentration of the dye, photocatalyst dosage, solution pH, and photocatalyst reusability were investigated. The kinetics of the reaction were studied in detail, and the photocatalytic rate equation was presented.
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Affiliation(s)
- Vahideh Alvandi Peyman
- Department of Physical Chemistry, Faculty of Chemistry, Bu-Ali Sina University, Hamedan, Iran
| | - Saeid Azizian
- Department of Physical Chemistry, Faculty of Chemistry, Bu-Ali Sina University, Hamedan, Iran
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27
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Ultra-low loading of Ag2CrO4 on BiOI/CoFe2O4 microsphere with p-n heterojunction: Highly improved photocatalytic performance for Hg0 removal and mechanism insight. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2020.112543] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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28
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Oh WC, Nguyen DCT, Areerob Y. Novel cadmium oxide-graphene nanocomposite grown on mesoporous silica for simultaneous photocatalytic H 2-evolution. CHEMOSPHERE 2020; 239:124825. [PMID: 31527007 DOI: 10.1016/j.chemosphere.2019.124825] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 08/10/2019] [Accepted: 09/09/2019] [Indexed: 06/10/2023]
Abstract
Novel Cadmium Oxide-Graphene Nanocomposite Grown on Mesoporous Silica have been successfully prepared using a self-assembly method under the catering of cetyltrimethylammonium bromide (CTAB) as the surfactant template at ambient conditions. The structural and optical properties of the obtained nanocomposites were investigated by many different techniques. The results of photocatalytic measurements revealed that almost 100% of MB organic dye was removed with the presence of SiO2/CdO-graphene composite under visible light irradiation. Moreover, the initial pH also plays an important role in the photodegradation processes. On the other hand, this work opens a way to enhance the photocatalytic activity of gallic acid at ambient conditions without any further different oxidation processes. From the evolutionary aspect, SiO2/CdO-graphene composite revealed better H2 generation than that of binary photocatalyst (CdO-graphene nanocomposite). The results of characterization and photodegradation suggest that SiO2/CdO-graphene material constitutes a new photocatalyst for the degradation of organic contaminants, as well as the development of an efficient hetero-system for hydrogen production.
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Affiliation(s)
- Won-Chun Oh
- Department of Advanced Materials Science & Engineering, Hanseo University, Seosan-si, Chungcheongnam-do, 31962, South Korea.
| | - Dinh Cung Tien Nguyen
- Department of Advanced Materials Science & Engineering, Hanseo University, Seosan-si, Chungcheongnam-do, 31962, South Korea
| | - Yonrapach Areerob
- Department of Advanced Materials Science & Engineering, Hanseo University, Seosan-si, Chungcheongnam-do, 31962, South Korea.
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