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Li H, He R, Liu N, Feng L, Chen S, Wang H, Lv C, Chen X, Liu G, Zhao G. ZnO/g-C 3N 4 photocatalyst activated by low-pressure ultraviolet for restoring the SWASV signals: A fast pretreatment method for electrochemically detecting Cd 2+ and Pb 2+ in soil extracts. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 354:124183. [PMID: 38772513 DOI: 10.1016/j.envpol.2024.124183] [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: 02/16/2024] [Revised: 04/23/2024] [Accepted: 05/18/2024] [Indexed: 05/23/2024]
Abstract
Soil organic matter (SOM) significantly impacts the detection accuracy of Cd2+ and Pb2+ using square wave anodic stripping voltammetry (SWASV) due to the complexation of SOM to heavy metal ions (HMIs), thereby attenuating SWASV signals. This study explored an effective pretreatment method that combined low-pressure ultraviolet (LPUV) photolysis with the ZnO/g-C3N4 photocatalyst, activating the photocatalyst to generate highly oxidative •OH radicals and O2•- radicals, which effectively disrupted this complexation, consequently restoring the electroactivity of HMIs and achieving high-fidelity SWASV signals. The parameters of the LPUV-ZnO/g-C3N4 photocatalytic system were meticulously optimized, including the pH of photolysis, duration of photolysis, g-C3N4 mass fraction, and concentration of the photocatalyst. Furthermore, the ZnO/g-C3N4 photocatalyst was thoroughly characterized, with an in-depth investigation on the synergistic interaction between ZnO and g-C3N4 and the mechanisms contributing to the restoration of SWASV signals. This synergistic interaction effectively separated charge carriers and reduced charge transfer resistance, enabling photogenerated electrons (e-) from the conduction band of g-C3N4 to be quickly transferred to the conduction band of ZnO, preventing the recombination of e- and hole (h+) and generating more radicals to disrupt complexation and restore the SWASV signals. Finally, the analysis of HMIs in real soil extracts using the proposed pretreatment method demonstrated high detection accuracy of 94.9% for Cd2+ and 99.8% for Pb2+, which validated the feasibility and effectiveness of the proposed method in environmental applications.
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Affiliation(s)
- Haonan Li
- College of Engineering, Nanjing Agricultural University, Nanjing, 210031, PR China
| | - Renjie He
- College of Engineering, Nanjing Agricultural University, Nanjing, 210031, PR China
| | - Ning Liu
- Key Lab of Modern Precision Agriculture System Integration Research, Ministry of Education of China, China Agricultural University, Beijing, 100083, PR China
| | - Liya Feng
- College of Engineering, Nanjing Agricultural University, Nanjing, 210031, PR China
| | - Shaowen Chen
- College of Artificial Intelligence, Nanjing Agricultural University, Nanjing, 210031, PR China
| | - Hao Wang
- College of Artificial Intelligence, Nanjing Agricultural University, Nanjing, 210031, PR China
| | - Cheng Lv
- College of Artificial Intelligence, Nanjing Agricultural University, Nanjing, 210031, PR China
| | - Xinyi Chen
- College of Artificial Intelligence, Nanjing Agricultural University, Nanjing, 210031, PR China
| | - Gang Liu
- Key Lab of Modern Precision Agriculture System Integration Research, Ministry of Education of China, China Agricultural University, Beijing, 100083, PR China
| | - Guo Zhao
- College of Artificial Intelligence, Nanjing Agricultural University, Nanjing, 210031, PR China.
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2
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Suhag MH, Khatun A, Tateishi I, Furukawa M, Katsumata H, Kaneco S. Purification of aqueous orange II solution through adsorption and visible-light-induced photodegradation using ZnO-modified g-C 3N 4 composites. RSC Adv 2024; 14:17888-17900. [PMID: 38836168 PMCID: PMC11149495 DOI: 10.1039/d4ra01481b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Accepted: 05/27/2024] [Indexed: 06/06/2024] Open
Abstract
Semiconductor-based remediation enables environmentally friendly methods of removing aqueous pollutants. Simply fabricated ZnO modified g-C3N4 composites were utilized as bifunctional adsorptive photocatalysts for orange II removal from aqueous solution through adsorption and photocatalysis processes. The adsorption isotherm data of the g-C3N4 (g-CN) and ZnO modified g-C3N4 (ZCN) composites on orange II solution were better fitted with the Langmuir isotherm compared to the Freundlich isotherm. The maximum adsorption capacity for ZCN-2.5 was slightly higher than that of bare g-CN. According to the adsorption thermodynamics investigation of ZCN-2.5 in orange II solution, the positive values of Gibb's free energy change (ΔG0) suggested a non-spontaneous adsorption process. Furthermore, the negative values of entropy change (ΔS) and enthalpy change (ΔH) indicated the decrement of randomness and exothermic nature during the adsorption process, respectively. The photocatalytic degradation kinetics of g-CN and ZCN composites indicated that the degradation process follows the pseudo-first-order reaction kinetic. The degradation rate of orange II with the ZCN-2.5 composite was 6.67 times higher than that obtained with bare g-CN. Possible adsorption and photocatalytic mechanisms have been proposed.
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Affiliation(s)
- Mahmudul Hassan Suhag
- Department of Applied Chemistry, Graduate School of Engineering, Mie University Tsu Mie 514-8507 Japan
- Department of Chemistry, University of Barishal Barishal 8254 Bangladesh
| | - Aklima Khatun
- Department of Applied Chemistry, Graduate School of Engineering, Mie University Tsu Mie 514-8507 Japan
| | - Ikki Tateishi
- Mie Global Environment Center for Education & Research, Mie University Tsu Mie 514-8507 Japan
| | - Mai Furukawa
- Department of Applied Chemistry, Graduate School of Engineering, Mie University Tsu Mie 514-8507 Japan
| | - Hideyuki Katsumata
- Department of Applied Chemistry, Graduate School of Engineering, Mie University Tsu Mie 514-8507 Japan
| | - Satoshi Kaneco
- Department of Applied Chemistry, Graduate School of Engineering, Mie University Tsu Mie 514-8507 Japan
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3
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Li M, Zhang R, Zou Z, Zhang L, Ma H. Optimizing physico-chemical properties of hierarchical ZnO/TiO 2 nano-film by the novel heating method for photocatalytic degradation of antibiotics and dye. CHEMOSPHERE 2024; 346:140392. [PMID: 37852380 DOI: 10.1016/j.chemosphere.2023.140392] [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: 07/05/2023] [Revised: 09/17/2023] [Accepted: 10/06/2023] [Indexed: 10/20/2023]
Abstract
The design of semiconductor catalysts with excellent photocatalytic properties, stability, recyclability, and good separation for the treatment of polluted water is still challenging. In this paper, the ZnO/TiO2 nano-thin films were fabricated using the magnetron sputtering technique and then heating the underlying ZnO layer and the upper TiO2 layer for their respective optimal heating time, i. e. heating ZnO for 3 h and heating TiO2 for 2 h. The as-prepared films were characterized. The results show that the preferred growth of TiO2 grains along the [001] axis, relatively large specific surface area, and increased amounts of surface oxygen vacancies (OVs) were induced to the heterojunction catalysts through this optimized heating strategy, which boosts the photocatalytic activity of ZnO/TiO2 nano-film. The degradation experiment inndicates that the ciprofloxacin (CIP) removal efficiency can reach 97.3% in 2 h duration, which was higher than that of the samples annealed for the same periods. Meanwhile, the prepared ZnO/TiO2 photocatalytic film exhibited favorable stability of 95.5% degradation efficiency after the fourth run and general applicability for the photodegradation of various contantains, whih removed 99.5% of ofloxacin (OFX) and 77.6% of tetracycline (TC) in 2 h and 94.1% of Rhodamine B (RhB) in 1 h. This work is expected to yields a novel insight into the production of heterojunction photocatalysts with excellen ability for photocatalytic degradation of pollutants in the practical industry.
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Affiliation(s)
- Min Li
- School of Mechanics and Engineering Science, Zhengzhou University, Zhengzhou 450001, China
| | - Ruiyang Zhang
- School of Mechanics and Engineering Science, Zhengzhou University, Zhengzhou 450001, China
| | - Zhipeng Zou
- School of Mechanics and Engineering Science, Zhengzhou University, Zhengzhou 450001, China
| | - Lan Zhang
- School of Mechanics and Engineering Science, Zhengzhou University, Zhengzhou 450001, China.
| | - Huizhong Ma
- School of Mechanics and Engineering Science, Zhengzhou University, Zhengzhou 450001, China.
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4
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Suhag MH, Khatun A, Tateishi I, Furukawa M, Katsumata H, Kaneco S. One-Step Fabrication of the ZnO/g-C 3N 4 Composite for Visible Light-Responsive Photocatalytic Degradation of Bisphenol E in Aqueous Solution. ACS OMEGA 2023; 8:11824-11836. [PMID: 37033806 PMCID: PMC10077555 DOI: 10.1021/acsomega.2c06678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 01/05/2023] [Indexed: 06/19/2023]
Abstract
The ZnO/g-C3N4 composite was successfully synthesized by a simple one-step calcination of a urea and zinc acetate mixture. The photocatalytic activity of the synthesized composite was evaluated in the degradation of bisphenol E (BPE). The morphology, crystallinity, optical properties, and composition of the synthesized composite were characterized by using various analytical techniques such as scanning electron microscopy (SEM), transmitted electron microscopy (TEM), field emission-electron probe microanalysis (FE-EPMA), nitrogen adsorption and desorption isotherm measurement, Fourier-transform infrared (FTIR) spectroscopy, X-ray powder diffraction (XRD), diffuse reflectance spectroscopy (DRS), photoluminescence (PL) spectroscopy, electrochemical impedance spectroscopy (EIS), X-ray photoelectron spectroscopy (XPS), and thermogravimetric analysis (TGA). The degradation rate of BPE with the ZnO/g-C3N4 composite was 8 times larger than that obtained with pure g-C3N4 at the optimal conditions. The excellent photocatalytic activity was attributed to the synergistic effect between the g-C3N4 and ZnO, which enhanced the efficiency of charge separations, reduced the e-/h+ pairs recombination, and increased the visible light absorption ability. The radical scavenger studies indicated that the •O2 - and h+ species were mainly responsible for the degradation of BPE. The stability test suggested the chemical and photostability of the synthesized composite. Two possible photocatalytical mechanisms have been suggested.
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Affiliation(s)
- Mahmudul Hassan Suhag
- Department
of Chemistry for Materials, Graduate School of Engineering, Mie University, Tsu, Mie 514-8507, Japan
- Department
of Chemistry, University of Barishal, Barishal 8254, Bangladesh
| | - Aklima Khatun
- Department
of Chemistry for Materials, Graduate School of Engineering, Mie University, Tsu, Mie 514-8507, Japan
| | - Ikki Tateishi
- Environmental
Preservation Center, Mie University, Tsu, Mie 514-8507, Japan
| | - Mai Furukawa
- Department
of Chemistry for Materials, Graduate School of Engineering, Mie University, Tsu, Mie 514-8507, Japan
| | - Hideyuki Katsumata
- Department
of Chemistry for Materials, Graduate School of Engineering, Mie University, Tsu, Mie 514-8507, Japan
| | - Satoshi Kaneco
- Department
of Chemistry for Materials, Graduate School of Engineering, Mie University, Tsu, Mie 514-8507, Japan
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5
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Naderi A, Hasham Firooz M, Gharibzadeh F, Giannakis S, Ahmadi M, Rezaei Kalantary R, Kakavandi B. Anchoring ZnO on spinel cobalt ferrite for highly synergic sono-photo-catalytic, surfactant-assisted PAH degradation from soil washing solutions. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 326:116584. [PMID: 36403318 DOI: 10.1016/j.jenvman.2022.116584] [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: 06/25/2022] [Revised: 10/08/2022] [Accepted: 10/19/2022] [Indexed: 06/16/2023]
Abstract
In this study, the photocatalytic activity of ZnO was effectively improved via its combination with spinel cobalt ferrite (SCF) nanoparticles. The catalytic performance of ZnO@SCF (ZSCF) was investigated in coupling with UV irradiation and ultrasound (US), as a heterogeneous sono-photocatalytic process, for the decontamination of phenanthrene (PHE) from contaminated soil. Soil washing tests were conducted in a batch environment, after extraction assisted by using Tween 80. Several characterization techniques such as XRD, FESEM-EDS, BET, TEM, UV-vis DRS, PL and VSM were utilized to determine the features of the as-prepared catalysts. ZSCF showed an excellent catalytic activity toward degradation of PHE in the presence of US and UV with a significant synergic effect. It was found that more than 93% of PHE (35 mg/L) and 87.5% of TOC could be eliminated by the integrated ZSCF/US/UV system under optimum operational conditions (pH: 8.0, ZSCF: 1.5 g/L, UV power: 6.0 W and US power: 70 W) within 90 min of reaction. After five times of use, ZSCF illustrated good reusability in the decontamination of PHE (87%) and TOC (79%). Quenching tests revealed the contribution of h+, HO• and e- species during PHE degradation over ZSCF/UV/US and an S-scheme photocatalytic mechanisms was proposed for the possible charge transfer routes under the ZSCF system. This study provides the important role of SCF in enhancing the ZnO photocatalytic activity due to its high performance, easy recovery and excellent durability, which it make an efficient and promising catalyst in environmental clean-up applications.
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Affiliation(s)
- Azra Naderi
- Research Center for Environmental Health Technology, Iran University of Medical Sciences, Tehran, Iran; Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Masoumeh Hasham Firooz
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Farzaneh Gharibzadeh
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Stefanos Giannakis
- Universidad Politécnica de Madrid, E.T.S. de Ingenieros de Caminos, Canales y Puertos, Departamento de Ingeniería Civil: Hidráulica, Energía y Medio Ambiente, Unidad Docente Ingeniería Sanitaria, C/ Profesor Aranguren, S/n, ES, 28040, Madrid, Spain
| | - Mohammad Ahmadi
- Research Center for Environmental Health Technology, Iran University of Medical Sciences, Tehran, Iran; Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Roshanak Rezaei Kalantary
- Research Center for Environmental Health Technology, Iran University of Medical Sciences, Tehran, Iran; Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran.
| | - Babak Kakavandi
- Research Center for Health, Safety and Environment, Alborz University of Medical Sciences, Karaj, Iran; Department of Environmental Health Engineering, Alborz University of Medical Sciences, Karaj, Iran.
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6
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Heterostructured Photocatalysts Associating ZnO Nanorods and Ag-In-Zn-S Quantum Dots for the Visible Light-Driven Photocatalytic Degradation of the Acid Orange 7 Dye. Catalysts 2022. [DOI: 10.3390/catal12121585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Heterostructured photocatalysts associating ZnO nanorods (NRs) sensitized by quaternary Ag-In-Zn-S (AIZS) quantum dots (QDs) were prepared by depositing AIZS QDs at the surface of ZnO NRs followed by thermal treatment at 300 °C. The ZnO/AIZS catalysts were characterized by X-ray diffraction, electron microscopy, UV-vis diffuse spectroscopy and by photoelectrochemical measurements. Their photocatalytic activity was evaluated for the bleaching of the Acid Orange 7 (AO7) dye under visible light irradiation. Results show that the association of ZnO NRs with 10 wt% AIZS QDs affords the photocatalyst the highest activity due to the enhanced visible light absorption combined with the improved charge separation. The ZnO/AIZS(10) photocatalyst degrades 98% AO7 in 90 min under visible light illumination, while ZnO NRs can only decompose 11% of the dye. The ZnO/AIZS(10) photocatalyst was also found to be stable and can be reused up to eight times without significant alteration of its activity. This work demonstrates the high potential of AIZS QDs for the development of visible light active photocatalysts.
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7
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Zhang L, Chen L, Xia Y, Liang Z, Huang R, Liang R, Yan G. Modification of Polymeric Carbon Nitride with Au-CeO 2 Hybrids to Improve Photocatalytic Activity for Hydrogen Evolution. Molecules 2022; 27:7489. [PMID: 36364316 PMCID: PMC9656339 DOI: 10.3390/molecules27217489] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 10/28/2022] [Accepted: 11/01/2022] [Indexed: 10/15/2023] Open
Abstract
The construction of a multi-component heterostructure for promoting the exciton splitting and charge separation of conjugated polymer semiconductors has attracted increasing attention in view of improving their photocatalytic activity. Here, we integrated Au nanoparticles (NPs) decorated CeO2 (Au-CeO2) with polymeric carbon nitride (PCN) via a modified thermal polymerization method. The combination of the interfacial interaction between PCN and CeO2 via N-O or C-O bonds, with the interior electronic transmission channel built by the decoration of Au NPs at the interface between CeO2 and PCN, endows CeAu-CN with excellent efficiency in the transfer and separation of photo-induced carriers, leading to the enhancement of photochemical activity. The amount-optimized CeAu-CN nanocomposites are capable of producing ca. 80 μmol· H2 per hour under visible light irradiation, which is higher than that of pristine CN, Ce-CN and physical mixed CeAu and PCN systems. In addition, the photocatalytic activity of CeAu-CN remains unchanged for four runs in 4 h. The present work not only provides a sample and feasible strategy to synthesize highly efficient organic polymer composites containing metal-assisted heterojunction photocatalysts, but also opens up a new avenue for the rational design and synthesis of potentially efficient PCN-based materials for efficient hydrogen evolution.
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Affiliation(s)
- Linzhu Zhang
- Province University Key Laboratory of Green Energy and Environment Catalysis, Ningde Normal University, Ningde 352100, China
- Fujian Provincial Key Laboratory of Featured Materials in Biochemical Industry, Ningde Normal University, Ningde 352100, China
| | - Lu Chen
- Province University Key Laboratory of Green Energy and Environment Catalysis, Ningde Normal University, Ningde 352100, China
- Fujian Provincial Key Laboratory of Featured Materials in Biochemical Industry, Ningde Normal University, Ningde 352100, China
| | - Yuzhou Xia
- Province University Key Laboratory of Green Energy and Environment Catalysis, Ningde Normal University, Ningde 352100, China
- Fujian Provincial Key Laboratory of Featured Materials in Biochemical Industry, Ningde Normal University, Ningde 352100, China
| | - Zhiyu Liang
- Province University Key Laboratory of Green Energy and Environment Catalysis, Ningde Normal University, Ningde 352100, China
- Fujian Provincial Key Laboratory of Featured Materials in Biochemical Industry, Ningde Normal University, Ningde 352100, China
| | - Renkun Huang
- Province University Key Laboratory of Green Energy and Environment Catalysis, Ningde Normal University, Ningde 352100, China
- Fujian Provincial Key Laboratory of Featured Materials in Biochemical Industry, Ningde Normal University, Ningde 352100, China
| | - Ruowen Liang
- Province University Key Laboratory of Green Energy and Environment Catalysis, Ningde Normal University, Ningde 352100, China
- Fujian Provincial Key Laboratory of Featured Materials in Biochemical Industry, Ningde Normal University, Ningde 352100, China
| | - Guiyang Yan
- Province University Key Laboratory of Green Energy and Environment Catalysis, Ningde Normal University, Ningde 352100, China
- Fujian Provincial Key Laboratory of Featured Materials in Biochemical Industry, Ningde Normal University, Ningde 352100, China
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8
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Vadivel S, Fujii M, Rajendran S. Facile synthesis of broom stick like FeOCl/g-C 3N 5 nanocomposite as novel Z-scheme photocatalysts for rapid degradation of pollutants. CHEMOSPHERE 2022; 307:135716. [PMID: 35853514 DOI: 10.1016/j.chemosphere.2022.135716] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 06/27/2022] [Accepted: 07/11/2022] [Indexed: 06/15/2023]
Abstract
A simple and cost-effective route has been utilized for the preparation of a novel lamellar structured FeOCl/g-C3N5 nanocomposite as Z-scheme photocatalyst. The preparation method was performed under the ambient temperature conditions without any hazardous chemicals. Various characterization techniques, namely XRD, FESEM, TEM, FT-IR, UV-Vis, DRS, and PL were carried out to analyse the nanocomposite for confirmation of FeOCl/g-C3N5 nanocomposite. To evaluate its and visible light degradation performances tetracycline (T-C) was used as target pollutant. Among the optimum loading for the g-C3N5 incorporated FeOCl binary nanocomposites, the g-C3N5/FeOCl exhibited a superlative degradation performance toward the T-C antibiotic pollutant. The results confirmed that 95% of T-C was degraded within 40 min under photodegradation mechanism. The improved photodegradation performance in degradation of T-C was mainly due to the reduction in electron-hole recombination, broadening in the light absorption by g-C3N5 incorporation, which leads to shortening the degradation time. Furthermore, the hydroxyl and superoxide radicals played a major role in the photodegradation process and the possible mechanism was elucidated and proposed. The present work implies a novel, sustainable, and efficient Z-scheme system that may deliver a convenient method for environment remediation.
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Affiliation(s)
- Sethumathavan Vadivel
- Department of Civil and Environmental Engineering, Tokyo Institute of Technology, Meguro-ku, Tokyo, 152-8552, Japan.
| | - Manabu Fujii
- Department of Civil and Environmental Engineering, Tokyo Institute of Technology, Meguro-ku, Tokyo, 152-8552, Japan.
| | - Saravanan Rajendran
- Departamento de Ingeniería Mecánica, Facultad de Ingeniería, Universidad de Tarapacá, Avda. General Velásquez, 1775, Arica, Chile
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9
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Ganesh V, Yahia IS, Chidhambaram N. Facile Synthesis of ZnO:Sb/g-C3N4 Composite Materials for Photocatalysis Applications. J CLUST SCI 2022. [DOI: 10.1007/s10876-022-02336-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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10
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Application of g-C3N4/ZnO nanocomposites for fabrication of anti-fouling polymer membranes with dye and protein rejection superiority. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120893] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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11
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Wang L, Yang Y, Cui Q, Liu X. Time-resolved spectroscopy of oligomerized phenyl modified carbon nitride. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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12
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LaNiO3/g-C3N4 nanocomposite: An efficient Z-scheme photocatalyst for wastewater treatment using direct sunlight. J RARE EARTH 2022. [DOI: 10.1016/j.jre.2021.04.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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13
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Hilal M, Han JI. Bi-functional carbon doped and decorated ZnO nanorods for enhanced pH monitoring of dairy milk and adsorption of hazardous dyes. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.03.024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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14
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Ghafuri H, Rashidizadeh A, Gorab MG, Jafari G. Copper(II)-β-cyclodextrin immobilized on graphitic carbon nitride nanosheets as a highly effective catalyst for tandem oxidative amidation of benzylic alcohols. Sci Rep 2022; 12:2331. [PMID: 35149698 PMCID: PMC8837611 DOI: 10.1038/s41598-022-05363-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 01/11/2022] [Indexed: 11/09/2022] Open
Abstract
In this study, an efficient catalyst based on graphitic carbon nitride nanosheets (CN) and copper(II) supported β-cyclodextrin (β-CD/Cu(II)) was synthesized and used for tandem oxidative amidation of benzylic alcohols. In this regard, CN was functionalized by β-CD/Cu(II) via 1,3-dibromopropane linker (CN-Pr-β-CD/Cu(II)). The prepared catalyst was characterized using FT-IR, XRD, FE-SEM, EDS, TGA, ICP-OES, BET, and TEM analyses. CN-Pr-β-CD/Cu(II) was subsequently applied in a direct oxidative amidation reaction and it was observed that different benzyl alcohols were converted to desire amides with good to excellent efficiency. This reaction was performed in the presence of amine hydrochloride salts, tert-butyl hydroperoxide (TBHP), and Ca2CO3 in acetonitrile (CH3CN) under nitrogen atmosphere. CN-Pr-β-CD/Cu(II) can be recycled and reused five times without significant reduction in reaction efficiency.
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Affiliation(s)
- Hossein Ghafuri
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, 16846-13114, Tehran, Iran.
| | - Afsaneh Rashidizadeh
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, 16846-13114, Tehran, Iran
| | - Mostafa Ghafori Gorab
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, 16846-13114, Tehran, Iran
| | - Ghazaleh Jafari
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, 16846-13114, Tehran, Iran
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15
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Ma J, Liu K, Yang X, Jin D, Li Y, Jiao G, Zhou J, Sun R. Recent Advances and Challenges in Photoreforming of Biomass-Derived Feedstocks into Hydrogen, Biofuels, or Chemicals by Using Functional Carbon Nitride Photocatalysts. CHEMSUSCHEM 2021; 14:4903-4922. [PMID: 34636483 DOI: 10.1002/cssc.202101173] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 09/06/2021] [Indexed: 06/13/2023]
Abstract
Photoreforming of biomass into hydrogen, biofuels, and chemicals is highly desired, yet this field of research is still in its infancy. Developing an efficient, novel, and environmentally friendly photocatalyst is key to achieving these goals. To date, the nonmetallic and eco-friendly material carbon nitride has found many uses in reactions such as water splitting, CO2 reduction, N2 fixation, and biorefinery, owing to its outstanding photocatalytic activity. However, a narrow light absorption range and fast charge recombination are often encountered in the pristine carbon nitride photocatalytic system, which resulted in unsatisfying photocatalytic activity. To improve the photocatalytic performance of pure carbon nitride in biomass reforming, modification is needed. In this Review, the design and preparation of functional carbon nitride, as well as its photocatalytic properties for the synthesis of hydrogen, biofuels, and chemicals through biomass reforming, are discussed alongside potential avenues for its future development.
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Affiliation(s)
- Jiliang Ma
- Liaoning Key Laboratory of Lignocellulosic Chemistry and Biomaterials, Dalian Polytechnic University, Dalian, 116034, P. R. China
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Jinan, 250353, P. R. China
- National Forestry and Grassland Administration Key Laboratory of Plant Fiber Functional Materials, Fuzhou, 350108, P. R. China
| | - Kangning Liu
- Liaoning Key Laboratory of Lignocellulosic Chemistry and Biomaterials, Dalian Polytechnic University, Dalian, 116034, P. R. China
| | - Xiaopan Yang
- Liaoning Key Laboratory of Lignocellulosic Chemistry and Biomaterials, Dalian Polytechnic University, Dalian, 116034, P. R. China
| | - Dongnv Jin
- Liaoning Key Laboratory of Lignocellulosic Chemistry and Biomaterials, Dalian Polytechnic University, Dalian, 116034, P. R. China
| | - Yancong Li
- Liaoning Key Laboratory of Lignocellulosic Chemistry and Biomaterials, Dalian Polytechnic University, Dalian, 116034, P. R. China
| | - Gaojie Jiao
- Liaoning Key Laboratory of Lignocellulosic Chemistry and Biomaterials, Dalian Polytechnic University, Dalian, 116034, P. R. China
| | - Jinghui Zhou
- Liaoning Key Laboratory of Lignocellulosic Chemistry and Biomaterials, Dalian Polytechnic University, Dalian, 116034, P. R. China
| | - Runcang Sun
- Liaoning Key Laboratory of Lignocellulosic Chemistry and Biomaterials, Dalian Polytechnic University, Dalian, 116034, P. R. China
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16
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Thang NQ, Sabbah A, Chen LC, Chen KH, Thi CM, Van Viet P. High-efficient photocatalytic degradation of commercial drugs for pharmaceutical wastewater treatment prospects: A case study of Ag/g-C 3N 4/ZnO nanocomposite materials. CHEMOSPHERE 2021; 282:130971. [PMID: 34107423 DOI: 10.1016/j.chemosphere.2021.130971] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/14/2021] [Accepted: 05/20/2021] [Indexed: 06/12/2023]
Abstract
Pharmaceutical drugs' removal from wastewater by photocatalytic oxidation process is considered as an attractive approach and environmentally friendly solution. This report aims to appraise the practical application potential of Ag/g-C3N4/ZnO nanorods toward the wastewater treatment of the pharmaceutical industry. The catalysts are synthesized by straightforward and environmentally-friendly strategies. Specifically, g-C3N4/ZnO nanorods heterostructure is constructed by a simple self-assembly method, and then Ag nanoparticles are decorated on g-C3N4/ZnO nanorods by a photoreduction route. The results show that three commercial drugs (paracetamol, amoxicillin, and cefalexin) with high concentration (40 mg L-1) are significantly degraded in the existence of a small dosage of Ag/g-C3N4/ZnO nanorods (0.08 g L-1). The Ag/g-C3N4/ZnO nanorods photocatalyst exhibits degradation performance of paracetamol higher 3.8, 1.8, 1.3 times than pristine g-C3N4, ZnO nanorods, and g-C3N4/ZnO nanorods. Furthermore, Ag/g-C3N4/ZnO nanorods have an excellent reusability and a chemical stability that achieved paracetamol degradation efficiency of 78% and remained chemical structure of the photocatalyst after five cycles. In addition, the photocatalytic mechanism explanation and comparison of photocatalytic drugs' degradation ability have also been discussed in this study.
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Affiliation(s)
- Nguyen Quoc Thang
- Faculty of Materials Science and Technology, University of Science, VNU-HCM, 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, 700000, Viet Nam; Vietnam National University-Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, 700000, Viet Nam
| | - Amr Sabbah
- Institute of Atomic and Molecular Science, Academia Sinica, Taipei, 16017, Taiwan; Department of Chemistry, National Tsing Hua University, Hsinchu, 30013, Taiwan; Molecular Science and Technology, Taiwan International Graduate Program, Academia Sinica, Taipei, 11529, Taiwan; Center for Condensed Matter Science, National Taiwan University, Taipei, 10617, Taiwan
| | - Li-Chyong Chen
- Center for Condensed Matter Science, National Taiwan University, Taipei, 10617, Taiwan; Center of Atomic Initiative for New Materials, National Taiwan University, Taipei, 106, Taiwan
| | - Kuei-Hsien Chen
- Institute of Atomic and Molecular Science, Academia Sinica, Taipei, 16017, Taiwan; Center for Condensed Matter Science, National Taiwan University, Taipei, 10617, Taiwan
| | - Cao Minh Thi
- Ho Chi Minh City University of Technology (HUTECH), 475A Dien Bien Phu Street, Binh Thanh District, Ho Chi Minh City, 700000, Viet Nam
| | - Pham Van Viet
- Faculty of Materials Science and Technology, University of Science, VNU-HCM, 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, 700000, Viet Nam; Vietnam National University-Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, 700000, Viet Nam.
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17
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Sher M, Shahid S, Javed M. Synthesis of a novel ternary (g-C 3N 4 nanosheets loaded with Mo doped ZnOnanoparticles) nanocomposite for superior photocatalytic and antibacterial applications. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2021; 219:112202. [PMID: 33946027 DOI: 10.1016/j.jphotobiol.2021.112202] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 03/07/2021] [Accepted: 04/23/2021] [Indexed: 12/31/2022]
Abstract
This article reports the synthesis of a novel ternary Visible-Light-Driven (VLD) photocatalyst and antibacterial agent. The two-dimensional graphitic carbon nitride nanosheets (g-C3N4 NSs) and 7% molybdenum doped zinc oxide nanoparticles (Mo doped ZnO NPs) were used for the synthesis of the 65% g-C3N4 hybridized with 7% Mo doped ZnO novel ternary nanocomposite (Mo doped ZnO/g-C3N4 ternary NC). The synthesis process, as well as the structures, morphologies, photocatalytic and antibacterial properties of the synthesized ternary NC and constituents, were investigated by using several spectroscopic and microscopic techniques. It was revealed through the Transmission Electron Microscopy (TEM) characterization of the synthesized NC that the Mo doped ZnO NPs were found uniformly embedded upon the well-stacked g-C3N4NSs. It was further discovered by the bandgap analysis that the light absorbance ability of the ternary NC exists in the visible region of the light spectrum. The photocatalytic degradation of the methylene blue (MB) by the use of novel ternary NC in an aqueous medium was analyzed while using Ultra Violet-Visible (UV-Visible) spectroscopy. Trapping experiments of active species during the photodegradation and Electron Spin Resonance (ESR) experiment revealed that the superoxide and hydroxyl radicals were the leading species liable for MB deterioration. The ternary NC exhibited superior photocatalytic performance as compared with binary doped or hybridized nanomaterials (NMs) and mono photocatalysts due to the facility of effective migration and separation of the charge carriers across the (Mo doped ZnO NPs)/g-C3N4 NSs interface of the heterojunction. The increased generation of the reactive oxygen species (ROS), O2-, and •OH radicals the photogenerated charge carriers within the Mo doped ZnO/g-C3N4 NC were found responsible for its enhanced antibacterial performance.
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Affiliation(s)
- Mudassar Sher
- Department of Chemistry, University of Management and Technology, Lahore, Pakistan.
| | - Sammia Shahid
- Department of Chemistry, University of Management and Technology, Lahore, Pakistan
| | - Mohsin Javed
- Department of Chemistry, University of Management and Technology, Lahore, Pakistan
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18
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Podasca VE, Damaceanu MD. ZnO-Ag based polymer composites as photocatalysts for highly efficient visible-light degradation of Methyl Orange. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2020.113003] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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19
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Amdeha E, Mohamed RS. A green synthesized recyclable ZnO/MIL-101(Fe) for Rhodamine B dye removal via adsorption and photo-degradation under UV and visible light irradiation. ENVIRONMENTAL TECHNOLOGY 2021; 42:842-859. [PMID: 31327310 DOI: 10.1080/09593330.2019.1647290] [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: 11/27/2018] [Accepted: 07/16/2019] [Indexed: 06/10/2023]
Abstract
Metal-organic frameworks (MOFs) have recently debuted as participants and solid supports in catalysts for environmental application in water treatment. Visible light active nanocomposites; ZnO/MIL-101(Fe); were synthesized via a hydrothermal method by loading ZnO; prepared by a green method; on a porous MIL-101(Fe) to be used as a heterogeneous catalyst for Rhodamine B dye (RhB) degradation as a model pollutant. The effect of adding acetic acid during the preparation of MIL-101(Fe) was studied; [A] used for the samples prepared by acetic acid. The prepared catalysts were characterized by XPS, XRD, zeta potential, TGA, FTIR, N2 adsorption-desorption measurements, SEM, EDX, elemental mapping, TEM, and UV-VIS diffuse reflectance spectroscopy. The loading of ZnO on MIL-101(Fe) decreased the band gap from 3.2 eV for ZnO to be 2.85 eV for ZnO/MIL-101(Fe)[A], this low band gap explaining the obtained high activity under visible light irradiation. The mechanism of the photocatalytic degradation of RhB was investigated by introducing different scavengers to compete for the possible reactive species involved in the degradation process. The trapping experiments indicated that h+ and •OH have a vital role in the RhB degradation. The reusability of MIL-101(Fe) was also investigated after three runs. Thus, the synthesized ZnO/MIL-101(Fe)[A] could be used as an alternative catalyst for the photocatalytic degradation of coloured wastewater as it can successfully degrade 97.1% of Rhodamine B (10 mg/L) with high reaction rate (k = 0.0339 min-1) under visible light irradiation for 300 min using 0.5 g/L of the catalyst. The as-prepared ZnO/MIL-101(Fe) and ZnO/MIL-101(Fe)[A] have competitive photocatalytic dye degradation activity.
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Affiliation(s)
- Enas Amdeha
- Egyptian Petroleum Research Institute (EPRI), Cairo, Egypt
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20
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Chatterjee S, Bhanja P, Ghosh D, Kumar P, Kanti Das S, Dalapati S, Bhaumik A. Metformin-Templated Nanoporous ZnO and Covalent Organic Framework Heterojunction Photoanode for Photoelectrochemical Water Oxidation. CHEMSUSCHEM 2021; 14:408-416. [PMID: 33052003 DOI: 10.1002/cssc.202002136] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 10/02/2020] [Indexed: 06/11/2023]
Abstract
Photoelectrochemical water-splitting offers unique opportunity in the utilization of abundant solar light energy and water resources to produce hydrogen (renewable energy) and oxygen (clean environment) in the presence of a semiconductor photoanode. Zinc oxide (ZnO), a wide bandgap semiconductor is found to crystallize predominantly in the hexagonal wurtzite phase. Herein, we first report a new crystalline triclinic phase of ZnO by using N-rich antidiabetic drug metformin as a template via hydrothermal synthesis with self-assembled nanorod-like particle morphology. We have fabricated a heterojunction nanocomposite charge carrier photoanode by coupling this porous ZnO with a covalent organic framework, which displayed highly enhanced photocurrent density of 0.62 mA/cm2 at 0.2 V vs. RHE in photoelectrochemical water oxidation and excellent photon-to-current conversion efficiency at near-neutral pH vis-à-vis bulk ZnO. This enhancement of the photocurrent for the porous ZnO/COF nanocomposite material over the corresponding bulk ZnO could be attributed to the visible light energy absorption by COF and subsequent efficient charge-carrier mobility via porous ZnO surface.
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Affiliation(s)
- Sauvik Chatterjee
- School of Materials Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mallick Road, Jadavpur, Kolkata, 700032, India
| | - Piyali Bhanja
- School of Materials Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mallick Road, Jadavpur, Kolkata, 700032, India
| | - Dibyendu Ghosh
- School of Materials Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mallick Road, Jadavpur, Kolkata, 700032, India
| | - Praveen Kumar
- School of Materials Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mallick Road, Jadavpur, Kolkata, 700032, India
| | - Sabuj Kanti Das
- School of Materials Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mallick Road, Jadavpur, Kolkata, 700032, India
| | - Sasanka Dalapati
- School of Technology, Department of Materials Science, Central University of Tamil Nadu (CUTN), Neelakudi, Thiruvarur, Tamil Nadu, 610005, India
| | - Asim Bhaumik
- School of Materials Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mallick Road, Jadavpur, Kolkata, 700032, India
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21
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Thang NQ, Sabbah A, Chen LC, Chen KH, Hai LV, Thi CM, Viet PV. Localized surface plasmonic resonance role of silver nanoparticles in the enhancement of long-chain hydrocarbons of the CO2 reduction over Ag-gC3N4/ZnO nanorods photocatalysts. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2020.116049] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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22
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Sher M, Javed M, Shahid S, Iqbal S, Qamar MA, Bahadur A, Qayyum MA. The controlled synthesis of g-C3N4/Cd-doped ZnO nanocomposites as potential photocatalysts for the disinfection and degradation of organic pollutants under visible light irradiation. RSC Adv 2021; 11:2025-2039. [PMID: 35424172 PMCID: PMC8693747 DOI: 10.1039/d0ra08573a] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 12/01/2020] [Indexed: 01/24/2023] Open
Abstract
The in situ growth of well-dispersed Cd-doped ZnO nanoparticles (Cd-ZnO NPs) on graphitic carbon nitride (g-C3N4) nanosheets was successfully achieved through the co-precipitation method for the formation of Cd-doped ZnO nanocomposites with g-C3N4 (Cd-ZnO/g-C3N4 NCs). The effect of different compositions of ternary nanocomposites (Cd-ZnO/g-C3N4 NCs) on photocatalytic properties was investigated. Ternary NCs, in which 60% g-C3N4 hybridized with 7% Cd-doped ZnO (g-C3N4/Cd-ZnO) NCs were proven to be optimum visible-light-driven (VLD) photocatalysts for the degradation of methylene blue (MB) dye. The enhanced photodegradation of MB is mainly due to the increase in the generation of photogenerated charge carriers (reactive oxygen species (ROS), O2−, and ˙OH radicals). The electron spin resonance (ESR) experiment revealed that the superoxide and hydroxyl radicals were the leading species responsible for the degradation of MB. Moreover, the NC exhibited tremendous stability with a consistently high MB degradation rate for 10 successive catalytic cycles. The structural and optical properties of CdO, ZnO NPs, Cd-ZnO NPs, g-C3N4 NSs, and g-C3N4/Cd-ZnO NCs were investigated via XRD, SEM, EDX, TEM, FTIR spectroscopy, UV-Vis spectroscopy, ESR spectroscopy, and PL spectroscopy techniques. The synthesized photocatalysts were also applied against Gram-positive and Gram-negative bacterial strains to evaluate their antibacterial activities. The controlled design of novel Z-scheme g-C3N4/Cd-ZnO heterojunction via chemical co-precipitation technique. 60% g-C3N4 hybridized with 7% Cd-doped ZnO (g-C3N4/Cd-ZnO) NCs have been proved to be optimum visible-light-driven (VLD) photocatalysts.![]()
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Affiliation(s)
- Mudassar Sher
- Department of Chemistry
- School of Science
- University of Management and Technology
- Lahore 54770
- Pakistan
| | - Mohsin Javed
- Department of Chemistry
- School of Science
- University of Management and Technology
- Lahore 54770
- Pakistan
| | - Sammia Shahid
- Department of Chemistry
- School of Science
- University of Management and Technology
- Lahore 54770
- Pakistan
| | - Shahid Iqbal
- Department of Chemistry
- School of Natural Sciences (SNS)
- National University of Science and Technology (NUST)
- Islamabad
- Pakistan
| | - Muhammad Azam Qamar
- Department of Chemistry
- School of Science
- University of Management and Technology
- Lahore 54770
- Pakistan
| | - Ali Bahadur
- Department of Transdisciplinary Studies
- Graduate School of Convergence Science and Technology
- Seoul National University
- Seoul
- South Korea
| | - Muhammad Abdul Qayyum
- Department of Chemistry
- Division of Science and Technology
- University of Education Lahore Pakistan
- Lahore
- Pakistan
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Vatanpour V, Faghani S, Keyikoglu R, Khataee A. Enhancing the permeability and antifouling properties of cellulose acetate ultrafiltration membrane by incorporation of ZnO@graphitic carbon nitride nanocomposite. Carbohydr Polym 2020; 256:117413. [PMID: 33483008 DOI: 10.1016/j.carbpol.2020.117413] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 10/23/2020] [Accepted: 11/13/2020] [Indexed: 02/06/2023]
Abstract
This study reports the modification of cellulose acetate (CA) membrane with zinc oxide (ZnO)@graphitic carbon nitride (g-C3N4) nanocomposite to improve the antifouling and separation performance. Different combinations of the CA-based membranes such as CA/g-C3N4, CA/ZnO, and CA/ZnO@g-C3N4 were fabricated using the non-solvent induced phase separation (NIPS) method. Membranes were analyzed for their morphology (SEM), porosity, pore size, contact angle, permeability, rejection, and antifouling properties. According to the SEM images of CA/ZnO@g-C3N4, the formation of pear-shaped macro voids and finger-like canals originating from the top layer was evident. Nanocomposite blended membrane with 0.25 wt.% ZnO@g-C3N4 achieved the largest pore radius (3.05 nm) and the lowest contact angle (67.7°). With these characteristics, 0.25 wt.% ZnO@g-C3N4 membrane obtained a pure water flux of 51.3 LMH, which is 2.1 times greater than the bare CA and high BSA and dye rejections with 97.20% and 93.7% respectively. Finally, the antifouling resistance of the CA membrane was greatly improved with FRR increasing from 73.7% to 94.8%, which was accompanied by a significant decrease in the fouling resistance parameters.
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Affiliation(s)
- Vahid Vatanpour
- Department of Applied Chemistry, Faculty of Chemistry, Kharazmi University, P.O. Box 15719‑14911, Tehran, Iran.
| | - Somayeh Faghani
- Department of Applied Chemistry, Faculty of Chemistry, Kharazmi University, P.O. Box 15719‑14911, Tehran, Iran
| | - Ramazan Keyikoglu
- Department of Environmental Engineering, Gebze Technical University, 41400 Gebze, Turkey; Department of Environmental Engineering, Bursa Technical University, 16310 Bursa, Turkey
| | - Alireza Khataee
- Department of Environmental Engineering, Gebze Technical University, 41400 Gebze, Turkey; Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, 51666-16471 Tabriz, Iran.
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Chouchene B, Gries T, Balan L, Medjahdi G, Schneider R. Graphitic carbon nitride/SmFeO 3 composite Z-scheme photocatalyst with high visible light activity. NANOTECHNOLOGY 2020; 31:465704. [PMID: 32853176 DOI: 10.1088/1361-6528/abadc7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In this work, novel heterostructured photocatalysts associating graphitic carbon nitride (g-CN) and SmFeO3 were prepared via a mixing-ultrasonication process. Structural, optical and morphological characterizations demonstrate that the interfacial junction between g-CN and SmFeO3 is well established for all g-CN/SmFeO3 composites prepared with g-CN:SmFeO3 weight ratio of 20:80, 50:50 and 80:20. The g-CN/SmFeO3 (80:20) composite exhibits the highest photocatalytic activity for the degradation of pollutants like the Orange II dye and the tetracycline hydrochloride antibiotic under visible light irradiation. This high photocatalytic activity originates from the enhanced light absorption over the whole visible region compared to pure g-CN and from the improved separation and transfer of photogenerated electron/hole pairs as demonstrated by photoluminescence and photocurrent measurements. A Z-scheme charge carrier transfer mechanism was demonstrated for the photocatalytic reactions. The g-CN/SmFeO3 (80:20) catalyst was also demonstrated to be stable and can be reused up to six times without significant alteration of the activity.
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Affiliation(s)
- Bilel Chouchene
- Université de Lorraine, CNRS, LRGP, Nancy F-54000, France. Université de Lorraine, CNRS, IJL, Nancy F-54000, France
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25
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Improved Photocatalytic Activity of g‐C
3
N
4
/ZnO: A Potential Direct Z‐Scheme Nanocomposite. ChemistrySelect 2020. [DOI: 10.1002/slct.202003166] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Heterostructured g-CN/TiO 2 Photocatalysts Prepared by Thermolysis of g-CN/MIL-125(Ti) Composites for Efficient Pollutant Degradation and Hydrogen Production. NANOMATERIALS 2020; 10:nano10071387. [PMID: 32708780 PMCID: PMC7407120 DOI: 10.3390/nano10071387] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 07/06/2020] [Accepted: 07/13/2020] [Indexed: 11/18/2022]
Abstract
Photocatalysts composed of graphitic carbon nitride (g-CN) and TiO2 were efficiently prepared by thermolysis of the MIL-125(Ti) metal organic framework deposited on g-CN. The heterojunction between the 12 nm-sized TiO2 nanoparticles and g-CN was well established and the highest photocatalytic activity was observed for the g-CN/TiO2 (3:1) material. The g-CN/TiO2 (3:1) composite exhibits high visible light performances both for the degradation of pollutants like the Orange II dye or tetracycline but also for the production of hydrogen (hydrogen evolution rate (HER) up to 1330 μmolh−1g−1 and apparent quantum yield of 0.22% using NiS as a cocatalyst). The improved visible light performances originate from the high specific surface area of the photocatalyst (86 m2g−1) and from the efficient charge carriers separation as demonstrated by photoluminescence, photocurrent measurements, and electrochemical impedance spectroscopy. The synthetic process developed in this work is based on the thermal decomposition of metal organic framework deposited on a graphitic material and holds huge promise for the preparation of porous heterostructured photocatalysts.
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Thakur S, Mandal SK. Precursor- and Time-Dependent Morphological Evolution of ZnO Nanostructures for Comparative Photocatalytic Activity and Adsorption Dynamics with Methylene Blue Dye. ACS OMEGA 2020; 5:16670-16680. [PMID: 32685834 PMCID: PMC7364575 DOI: 10.1021/acsomega.0c01555] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 06/04/2020] [Indexed: 05/07/2023]
Abstract
Diverse ZnO nanostructures were successfully fabricated at 700 °C by direct annealing of 1D Zn(II) coordination polymer precursors, namely, [Zn2(bpma)2(adc)2] n , [Zn2(bpea)2(adc)2] n , and {[Zn2(bpta)2(adc)2]·2H2O} n . The effect of sacrificial ligands present in the precursors as well as a variation in the retention time (6-24 h) during their synthesis resulted in 0D nanospheres, 1D microrods, and 3D polyhedra (with a diamond-like structure) of ZnO. The as-synthesized ZnO nanostructures were characterized by field-emission scanning electron microscopy, transmission electron microscopy, X-ray diffractometry, diffuse reflectance spectroscopy, and Raman spectroscopy. The hexagonal crystal structure was confirmed for all the ZnO samples. A lattice spacing of 0.22 nm has been observed for nanospheres, whereas a lattice spacing of 0.26 nm has been observed for the polyhedra. Their Raman spectra confirm the wurtzite phase of ZnO. UV-vis spectra of ZnO nanostructures exhibit broad peaks in the range of 350-370 nm, and the band gap energies are found to be in the range of 3.02-3.20 eV. Based on the photoluminescence spectra photocatalytic activities of the as-synthesized ZnO nanostructures calcined for 12 h were tested with methylene blue (MB) as a contaminant in an aqueous solution. These results demonstrate that the photocatalytic efficiency of polyhedra is higher than those of nanospheres and microrods. The adsorption kinetics of MB dye by these nanostructures were studied by three different kinetic models-Elovich's, intraparticle, and pseudo-second-order. The maximum rate of adsorption was observed with the intraparticle diffusion model.
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Affiliation(s)
- Smriti Thakur
- Department of Chemical Sciences, Indian Institute of Science Education and Research
Mohali, Sector 81, Manauli
PO, S.A.S. Nagar, Mohali, Punjab 140306, India
| | - Sanjay K. Mandal
- Department of Chemical Sciences, Indian Institute of Science Education and Research
Mohali, Sector 81, Manauli
PO, S.A.S. Nagar, Mohali, Punjab 140306, India
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Deng H, Xu F, Cheng B, Yu J, Ho W. Photocatalytic CO 2 reduction of C/ZnO nanofibers enhanced by an Ni-NiS cocatalyst. NANOSCALE 2020; 12:7206-7213. [PMID: 32195499 DOI: 10.1039/c9nr10451h] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The photocatalytic reduction of CO2 into valuable hydrocarbon fuels via solar energy is a promising strategy for carbon utilization. In the present paper, a hierarchical Ni-NiS/C/ZnO photocatalyst was prepared via the in situ photodeposition of compact Ni-NiS nanosheets onto C/ZnO electrospun nanofibers. The existence of metallic Ni and NiS was confirmed by X-ray photoelectron spectroscopy. Photoluminescence (PL) and time-resolved PL spectra revealed that the cocatalyst Ni-NiS enhanced the charge separation efficiency of the C/ZnO nanofibers. The as-prepared Ni-NiS/C/ZnO showed enhanced CO2 reduction activity, with CO and CH4 production rates 10 and 15 times greater than those of pristine C/ZnO under 350 W visible light illumination. The intermediates of CH3O-, HCHO, and HCOO- were detected by in situ Fourier transform infrared spectroscopy, confirming that CO2 reduction is a complex reaction with multiple steps. The 13C isotopic tracer method proved that CH4 and CO were obtained from the reduction of CO2 rather than from other carbon species in the environment. The amorphous carbon in C/ZnO could promote optical absorption, improve conductivity and reduce the interfacial charge transport resistance. Ni-NiS improved the electron-hole-pair separation of the C/ZnO nanofibers. The observed enhancement in photocatalytic activity was largely attributed to higher light utilization and effective electron-hole separation. This work proves that Ni-NiS is a promising cocatalyst to ZnO for photocatalytic CO2 reduction.
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Affiliation(s)
- Hongzhao Deng
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China.
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29
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Bankole OM, Olaseni SE, Adeyemo MA, Ogunlaja AS. Microwave-Assisted Synthesis of Cobalt Oxide/Reduced Graphene Oxide (Co 3O 4–rGo) Composite and its Sulfite Enhanced Photocatalytic Degradation of Organic Dyes. Z PHYS CHEM 2020. [DOI: 10.1515/zpch-2019-1524] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Abstract
One-pot synthesis of Co3O4 nanocrystals on reduced graphene oxide (rGO) was carried out by reacting cobalt nitrate, L-arginine, extract of Laportae aestuans as oxidant, fuel and reducing agent, respectively, in a domestic microwave. Morphologies of Co3O4–rGo (RGCO) composite was elucidated using UV-Vis, FT-IR, TEM, SEM, EDX, XRD and photoluminescence spectroscopies. The synthesized RGCO composite was applied as heterogeneous photocatalyst in the activation of Na2SO3 (sulfite) as sacrificial agent to degrade cationic dyes: rhodamine B (RhB) and methylene blue (MB), under visible light, at neutral pH 7.0. Photocatalytic performance of as-prepared RGCO was significantly enhanced in the presence of Na2SO3. Enhanced photocatalytic activity of RGCO was attributed to the synergistic effects between sulfite radicals generated in situ, and reduced graphene oxide, in which rGO served as electron sink to suppress recombination of photogenerated charge carriers. Plausible mechanistic pathways responsible for the activation of sulfite anions in situ are presented in this paper.
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Affiliation(s)
- Owolabi M. Bankole
- Hydrochemistry Research Laboratory , Adekunle Ajasin University , Akungba , Nigeria , Phone: +2348034018955
| | - Segun E. Olaseni
- Hydrochemistry Research Laboratory , Adekunle Ajasin University , Akungba , Nigeria
| | - Moses A. Adeyemo
- Hydrochemistry Research Laboratory , Adekunle Ajasin University , Akungba , Nigeria
| | - Adeniyi S. Ogunlaja
- Department of Chemistry , Nelson Mandela University , Port Elizabeth , South Africa
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30
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Paul D, Gautam S, Panchal P, Nehra SP, Choudhary P, Sharma A. ZnO-Modified g-C 3N 4: A Potential Photocatalyst for Environmental Application. ACS OMEGA 2020; 5:3828-3838. [PMID: 32149209 PMCID: PMC7057336 DOI: 10.1021/acsomega.9b02688] [Citation(s) in RCA: 80] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 02/06/2020] [Indexed: 05/04/2023]
Abstract
Solar energy-driven practices using semiconducting materials is an ideal approach toward wastewater remediation. In order to attain a superior photocatalyst, a composite of g-C3N4 and ZnO (GCN-ZnO) has been prepared by one-step thermal polymerization of urea and zinc carbonate basic dihydrate [ZnNO3]2·[Zn(OH)2]3. The GCN-ZnO0.4 sample showed an evolved morphology, increased surface area (116 m2 g-1), better visible light absorption ability, and reduced band gap in comparison to GCN-pure. The GCN-ZnO0.4 sample also showed enhanced adsorption and photocatalytic activity performance, resulting in an increased reaction rate value up to 3 times that of GCN-pure, which was attributed to the phenomenon of better separation of photogenerated charge carriers resulting because of heterojunction development among interfaces of GCN-pure and ZnO. In addition, the GCN-ZnO0.4 sample showed a decent stability for four cyclic runs and established its potential use for abatement of organic wastewater pollutants in comparison to GCN-pure.
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Affiliation(s)
- Devina
Rattan Paul
- Center
of Excellence for Energy and Environmental Studies, Deenbandhu
Chhotu Ram University of Science and Technology, Murthal 131039, India
| | - Shubham Gautam
- Materials
Research Center, Malaviya National Institute
of Technology, Jaipur 302017, India
| | - Priyanka Panchal
- Center
of Excellence for Energy and Environmental Studies, Deenbandhu
Chhotu Ram University of Science and Technology, Murthal 131039, India
| | - Satya Pal Nehra
- Center
of Excellence for Energy and Environmental Studies, Deenbandhu
Chhotu Ram University of Science and Technology, Murthal 131039, India
| | | | - Anshu Sharma
- Department
of Physics, School of Engineering & Technology (SoET), Central University of Haryana, Mahendragarh 123031, India
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31
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Liu X, Wu X, Long D, Rao X, Zhang Y. Template-free synthesis of tetragonal graphitic carbon nitride microtubes doped by sodium chloride for enhanced photocatalytic H2 performance under visible light irradiation. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2019.112337] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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32
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Thakur S, Mandal SK. Morphology engineering of ZnO nanorod arrays to hierarchical nanoflowers for enhanced photocatalytic activity and antibacterial action against Escherichia coli. NEW J CHEM 2020. [DOI: 10.1039/d0nj01661f] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A facile, efficient hydrothermal synthesis of ZnO nanoflowers followed by post-synthetic annealing and their photocatalytic and antibacterial properties are reported.
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Affiliation(s)
- Smriti Thakur
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Mohali
- Mohali
- India
| | - Sanjay K. Mandal
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Mohali
- Mohali
- India
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33
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Nie J, Hassan QU, Jia Y, Gao J, Peng J, Lu J, Zhang F, Zhu G, Wang Q. La-Doped ZnWO4 nanorods with enhanced photocatalytic activity for NO removal: effects of La doping and oxygen vacancies. Inorg Chem Front 2020. [DOI: 10.1039/c9qi01152h] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
La3+-Doped ZnWO4 nanorods were prepared via a hydrothermal method for the photocatalytic NO removal under simulated solar light irradiation.
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Affiliation(s)
- Junli Nie
- School of Physics and Information Technology
- Shaanxi Normal University
- Xi'an 710062
- P.R. China
| | - Qadeer-Ul Hassan
- School of Physics and Information Technology
- Shaanxi Normal University
- Xi'an 710062
- P.R. China
| | - Yuefa Jia
- School of Environmental Science and Engineering
- Chang'an University
- Xi'an 710064
- P.R. China
| | - Jianzhi Gao
- School of Physics and Information Technology
- Shaanxi Normal University
- Xi'an 710062
- P.R. China
| | - Jianhong Peng
- School of Physics and Information Technology
- Shaanxi Normal University
- Xi'an 710062
- P.R. China
| | - Jiangbo Lu
- School of Physics and Information Technology
- Shaanxi Normal University
- Xi'an 710062
- P.R. China
| | - Fuchun Zhang
- College of Physics and Electronic Information
- Yan'an University
- Yan'an 716000
- P.R. China
| | - Gangqiang Zhu
- School of Physics and Information Technology
- Shaanxi Normal University
- Xi'an 710062
- P.R. China
| | - Qizhao Wang
- School of Environmental Science and Engineering
- Chang'an University
- Xi'an 710064
- P.R. China
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Zhang Y, Li L, Han D, Fu S, Liu Y, Han B, Yang M, Li G. Strongly Coupled Amorphous Porous NbO
x
(OH)
y
/g‐C
3
N
4
Heterostructure Composite for Efficient Photocatalytic Hydrogen Evolution. ChemistrySelect 2019. [DOI: 10.1002/slct.201903791] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yuelan Zhang
- States Key Laboratory of Inorganic Synthesis and Preparative ChemistryCollege of ChemistryJilin University Changchun 130012 P.R. China
| | - Liping Li
- States Key Laboratory of Inorganic Synthesis and Preparative ChemistryCollege of ChemistryJilin University Changchun 130012 P.R. China
| | - Dong Han
- States Key Laboratory of Inorganic Synthesis and Preparative ChemistryCollege of ChemistryJilin University Changchun 130012 P.R. China
| | - Sixian Fu
- States Key Laboratory of Inorganic Synthesis and Preparative ChemistryCollege of ChemistryJilin University Changchun 130012 P.R. China
| | - Yan Liu
- States Key Laboratory of Inorganic Synthesis and Preparative ChemistryCollege of ChemistryJilin University Changchun 130012 P.R. China
| | - Bingqi Han
- States Key Laboratory of Inorganic Synthesis and Preparative ChemistryCollege of ChemistryJilin University Changchun 130012 P.R. China
| | - Min Yang
- States Key Laboratory of Inorganic Synthesis and Preparative ChemistryCollege of ChemistryJilin University Changchun 130012 P.R. China
| | - Guangshe Li
- States Key Laboratory of Inorganic Synthesis and Preparative ChemistryCollege of ChemistryJilin University Changchun 130012 P.R. China
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Abstract
ZnO nanorods (NRs) films, nitrogen-doped (ZnO:N), and ZnO doped with nitrogen and decorated with silver nanostructures (ZnO:N-Ag) NRs films were vertically supported on undoped and N doped ZnO seed layers by a wet chemical method. The obtained films were characterized structurally by X-ray diffraction. Morphological and elemental analysis was performed by scanning electron microscopy, including an energy dispersive X-ray spectroscopy facility and their optical properties by Ultraviolet-Visible Spectroscopy. Analysis performed in the NRs films showed that the nitrogen content in the seed layer strongly affected their structure and morphology. The mean diameter of ZnO NRs ranged from 70 to 190 nm. As the nitrogen content in the seed layer increased, the mean diameter of ZnO:N NRs increased from 132 to 250 nm and the diameter dispersion decreased. This diameter increase occurs simultaneously with the incorporation of nitrogen into the ZnO crystal lattice and the increase in the volume of the unit cell, calculated using the X-ray diffraction patterns and confirmed by a slight shift in the XRD angle. The diffractograms indicated that the NRs have a hexagonal wurtzite structure, with preferential growth direction along the c axis. The SEM images confirmed the presence of metallic silver in the form of nanoparticles dispersed on the NRs films. Finally, the degradation of methyl orange (MO) in an aqueous solution was studied by UV-vis irradiation of NRs films contained in the bulk of aqueous MO solutions. We found a significant enhancement of the photocatalytic degradation efficiency, with ZnO:N-Ag NRs film being more efficient than ZnO:N NRs film, and the latter better than the ZnO NRs film.
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Kaur A, Anderson WA, Tanvir S, Kansal SK. Solar light active silver/iron oxide/zinc oxide heterostructure for photodegradation of ciprofloxacin, transformation products and antibacterial activity. J Colloid Interface Sci 2019; 557:236-253. [PMID: 31521973 DOI: 10.1016/j.jcis.2019.09.017] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 09/02/2019] [Accepted: 09/04/2019] [Indexed: 02/07/2023]
Abstract
This paper reports on the multitasking potential of a silver/iron oxide/zinc oxide (Ag/Fe2O3/ZnO) heterostructure, which was used for the photocatalytic decomposition of ciprofloxacin (CPX) and bacterial disinfection. The Ag/Fe2O3/ZnO heterostructure was successfully prepared using a facile precipitation method, and characterization results showed interesting structural, morphological, compositional and luminescent properties. The morphological results of the prepared heterostructure confirmed the deposition of Ag nanoparticles onto the surface of ZnO nanoplates and Fe2O3 nanorods. Treatment studies showed that the Ag/Fe2O3/ZnO heterostructure had superior solar light driven photocatalytic activity towards CPX degradation (76.4%) compared to bare Fe2O3 nanorods (43.2%) and ZnO nanoplates (63.1%), Ag/Fe2O3 (28.2%) and Ag/ZnO (64.5%) under optimized conditions (initial CPX concentration: 10 mg/L; pH 4; catalyst loading: 0.3 g/L). Reactive species study confirmed the roles of e-, h+, OH and O2- in the photocatalytic degradation process. This photocatalytic behaviour of the Ag/Fe2O3/ZnO heterostructure could be attributed to the improved full solar spectrum harvesting capacity, separation of charge carriers and migration of e-/h+ across the heterostructure interface. In addition, the Ag/Fe2O3/ZnO heterostructure also showed good antibacterial activity against Escherichia coli (E. coli) under both dark and visible light conditions. This might be due to generation of reactive oxygen species during the reaction. To the best of our knowledge, this is the first study till date on the utilization of Ag/Fe2O3/ZnO heterostructure for the photocatalytic degradation of CPX and E. coli bacteria disinfection. Therefore, this work offers an attractive path to design ZnO-based ternary heterostructures for solar-driven applications in wastewater remediation.
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Affiliation(s)
- Amandeep Kaur
- Dr. S. S. Bhatnagar University Institute of Chemical Engineering and Technology, Panjab University, Chandigarh 160014, India
| | - William A Anderson
- Department of Chemical Engineering, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
| | - Shazia Tanvir
- Department of Chemical Engineering, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
| | - Sushil Kumar Kansal
- Dr. S. S. Bhatnagar University Institute of Chemical Engineering and Technology, Panjab University, Chandigarh 160014, India.
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Balu S, Velmurugan S, Palanisamy S, Chen SW, Velusamy V, Yang TC, El-Shafey ESI. Synthesis of α-Fe2O3 decorated g-C3N4/ZnO ternary Z-scheme photocatalyst for degradation of tartrazine dye in aqueous media. J Taiwan Inst Chem Eng 2019. [DOI: 10.1016/j.jtice.2019.03.011] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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38
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Marinho JZ, de Paula LF, Longo E, Patrocinio AOT, Lima RC. Effect of Gd3+ doping on structural and photocatalytic properties of ZnO obtained by facile microwave-hydrothermal method. SN APPLIED SCIENCES 2019. [DOI: 10.1007/s42452-019-0359-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
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39
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Ben Abdelaziz M, Chouchene B, Balan L, Gries T, Medjahdi G, Ezzaouia H, Schneider R. One pot synthesis of bismuth oxide/graphitic carbon nitride composites with high photocatalytic activity. MOLECULAR CATALYSIS 2019. [DOI: 10.1016/j.mcat.2018.12.004] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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40
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Samadi M, Zirak M, Naseri A, Kheirabadi M, Ebrahimi M, Moshfegh AZ. Design and tailoring of one-dimensional ZnO nanomaterials for photocatalytic degradation of organic dyes: a review. RESEARCH ON CHEMICAL INTERMEDIATES 2019. [DOI: 10.1007/s11164-018-03729-5] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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