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Li K, Zhang X, Huang X, Li X, Chang Q, Wang J, Deng S, Zhu G. Wood-converted porous carbon decorated with MIL-101(Fe) derivatives for promoting photo-Fenton degradation of ciprofloxacin. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:23924-23941. [PMID: 38430437 DOI: 10.1007/s11356-024-32679-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 02/23/2024] [Indexed: 03/03/2024]
Abstract
In response to the escalating concerns over antibiotics in aquatic environments, the photo-Fenton reaction has been spotlighted as a promising approach to address this issue. Herein, a novel heterogeneous photo-Fenton catalyst (Fe3O4/WPC) with magnetic recyclability was synthesized through a facile two-step process that included in situ growth and subsequent carbonization treatment. This catalyst was utilized to expedite the photocatalytic decomposition of ciprofloxacin (CIP) assisted by H2O2. Characterization results indicated the successful anchoring of MIL-101(Fe)-derived spindle-like Fe3O4 particles in the multi-channeled wood-converted porous carbon (WPC) scaffold. The as-synthesized hybrid photocatalysts, boasting a substantial specific surface area of 414.90 m2·g-1 and an excellent photocurrent density of 0.79 μA·cm-2, demonstrated superior photo-Fenton activity, accomplishing approximately 100% degradation of CIP within 120 min of ultraviolet-light exposure. This can be attributed to the existence of a heterojunction between Fe3O4 and WPC substrate that promotes the migration and enhances the efficient separation of photogenerated electron-hole pairs. Meanwhile, the Fe(III)/Fe(II) redox circulation and mesoporous wood carbon in the catalyst synergistically enhance the utilization of H2O and accelerate the formation of •OH radicals, leading to heightened degradation efficiency of CIP. Experiments utilizing chemical trapping techniques have demonstrated that •OH radicals are instrumental in the CIP degradation process. Furthermore, the study on reusability indicated that the efficiency in removing CIP remained at 89.5% even through five successive cycles, indicating the structural stability and excellent recyclability of Fe3O4/WPC. This research presented a novel pathway for designing magnetically reusable MOFs/wood-derived composites as photo-Fenton catalysts for actual wastewater treatment.
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Affiliation(s)
- Kaiqian Li
- International Joint Research Center for Biomass Materials, Southwest Forestry University, Kunming, 650224, China
| | - Xupeng Zhang
- School of Material and Chemistry Engineering, Southwest Forestry University, Kunming, 650224, China
| | - Xueqin Huang
- School of Material and Chemistry Engineering, Southwest Forestry University, Kunming, 650224, China
| | - Xianghong Li
- International Joint Research Center for Biomass Materials, Southwest Forestry University, Kunming, 650224, China
| | - Qiaowen Chang
- Kunming Institute of Precious Metals, Yunnan Precious Metals Lab Co., Ltd., Kunming, 650106, China
| | - Jing Wang
- School of Material and Chemistry Engineering, Southwest Forestry University, Kunming, 650224, China
| | - Shuduan Deng
- School of Material and Chemistry Engineering, Southwest Forestry University, Kunming, 650224, China
| | - Gang Zhu
- International Joint Research Center for Biomass Materials, Southwest Forestry University, Kunming, 650224, China.
- School of Material and Chemistry Engineering, Southwest Forestry University, Kunming, 650224, China.
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Zheng Z, Zhang K, Toe CY, Amal R, Deletic A. Photo-electrochemical oxidation flow system for stormwater herbicides removal: Operational conditions and energy consumption analysis. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 898:166375. [PMID: 37598967 DOI: 10.1016/j.scitotenv.2023.166375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 07/31/2023] [Accepted: 08/15/2023] [Indexed: 08/22/2023]
Abstract
Photoelectrochemical oxidation (PECO) is a promising advanced technology for treating micropollutants in stormwater. However, it is important to understand its operation prior to practical validation. In this study, we introduced a flow PECO system designed to evaluate its potential for full-scale applications in herbicides degradation, providing valuable insights for future large-scale implementations. The PECO flow reactor demonstrated the ability to treat a larger volume of stormwater (675 mL, approximately 10 times more than previous batch experiments) with effective removal rates of 92 % for diuron and 22 % for atrazine over 6 h of operation at 2 V. To address the large volume issue in stormwater treatment, a multiple module parallel application design is being considered to increase the treatment capacity of the PECO flow reactor. During the flow reactor operations, flow rate was found to have a notable impact on removal performance, particularly for diuron. At a flow rate of 610 mL min-1, approximately 90 % removal of diuron was achieved, while at 29 mL min-1, the removal efficiency decreased to 60 %. While light intensity had minimal effect on diuron degradation (all settings achieved over 90 % removal), it enhanced atrazine degradation from 9 % to 31 % with an increase in intensity from 63 mW cm-2 to 144 mW cm-2. Remarkably, the PECO flow system exhibited excellent removal performance (>90 % removal) for diuron even at extremely high initial pollutant concentrations (240 μg L-1), demonstrating its capacity to handle varying contaminant loads in stormwater. Energy consumption analysis revealed that flow rate as the primary factor influenced the specific energy consumption rate. Higher flow rate (e.g., 610 mL min-1) were preferable in flow reactor due to its well-balanced performance between removal and energy consumption. These findings confirm that the PECO flow system offers an efficient and promising approach for stormwater treatment applications.
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Affiliation(s)
- Zhaozhi Zheng
- School of Civil and Environmental Engineering, University of New South Wales, Kensington, NSW 2052, Australia.
| | - Kefeng Zhang
- School of Civil and Environmental Engineering, University of New South Wales, Kensington, NSW 2052, Australia
| | - Cui Ying Toe
- School of Chemical Engineering, University of New South Wales, NSW 2052, Australia; School of Engineering, University of Newcastle, Callaghan, NSW 2308, Australia
| | - Rose Amal
- School of Chemical Engineering, University of New South Wales, NSW 2052, Australia
| | - Ana Deletic
- School of Civil and Environmental Engineering, University of New South Wales, Kensington, NSW 2052, Australia; School of Civil and Environmental Engineering, Engineering Faculty, Queensland University of Technology, Queensland 4001, Australia
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ALSamman MT, Sotelo S, Sánchez J, Rivas BL. Arsenic oxidation and its subsequent removal from water: An overview. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.123055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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4
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Arora I, Chawla H, Chandra A, Sagadevan S, Garg S. Advances in the strategies for enhancing the photocatalytic activity of TiO2: conversion from UV-light active to visible-light active photocatalyst. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109700] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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5
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Ashraf A, Liu G, Yousaf B, Arif M, Ahmed R, Rashid A, Riaz L, Rashid MS. Phyto-mediated photocatalysis: a critical review of in-depth base to reactive radical generation for erythromycin degradation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:32513-32544. [PMID: 35190984 DOI: 10.1007/s11356-022-19119-9] [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: 05/22/2021] [Accepted: 02/04/2022] [Indexed: 06/14/2023]
Abstract
Erythromycin (ERY), designated as a risk-prioritized macrolide antibiotic on the 2015 European Union watch list, is the third most commonly used antibiotic, most likely due to its ability to inhibit the protein. ERY has revealed record-high aquatic concentrations threatening the entire ecosystem and hence demands priority remedial measures. The inefficiency of various conventional ERY degradation methodologies opened up a gateway to advanced technologies. The conventional approach comprising of a chemically formulated, single photocatalyst has a major drawback of creating multiple environmental stresses. In this context, photocatalysis is grabbing tremendous attention as an efficient and cost-effective antibiotic treatment approach. Several studies have ascertained that ZnO, TiO2, Fe3O4, and rGO nanoparticles possess remarkable pollution minimizing operational capabilities. Additionally, composites are found much more effective in antibiotic removal than single nanoparticles. In this review, an attempt has been made to provide a comprehensive baseline for efficient reactive radical production by a phyto-mediated composite kept under a certain source of irradiation. Considerable efforts have been directed towards the in-depth investigation of rGO-embedded, phyto-mediated ZnO/TiO2/Fe3O4 photocatalyst fabrication for efficient ERY degradation, undergoing green photocatalysis. This detailed review provides photocatalytic nanocomposite individualities along with a hypothetical ERY degradation mechanism. It is assumed that derived information presented here will provoke innovative ideas for water purification incorporating green photocatalysis, initiating the construction of high-performance biogenic hierarchical nanocatalysts.
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Affiliation(s)
- Aniqa Ashraf
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, People's Republic of China
| | - Guijian Liu
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, People's Republic of China.
- State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, The Chinese Academy of Sciences, Xi'an, 710075, Shaanxi, China.
| | - Balal Yousaf
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, People's Republic of China
| | - Muhammad Arif
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, People's Republic of China
- Department of Soil and Environmental Sciences, Muhammad Nawaz Shareef University of Agriculture, Multan, 60000, Pakistan
| | - Rafay Ahmed
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, People's Republic of China
| | - Audil Rashid
- Botany Department, Faculty of Science, University of Gujrat, Hafiz Hayat Campus, Gujrat, 50700, Pakistan
| | - Luqman Riaz
- Department of Environmental Sciences, PMAS Arid Agriculture University, Rawalpindi, Pakistan
| | - Muhammad Saqib Rashid
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, People's Republic of China
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Keerthana SP, Yuvakkumar R, Ravi G, Hong SI, Al-Sehemi AG, Velauthapillai D. Fabrication of Ce doped TiO 2 for efficient organic pollutants removal from wastewater. CHEMOSPHERE 2022; 293:133540. [PMID: 34999098 DOI: 10.1016/j.chemosphere.2022.133540] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 12/23/2021] [Accepted: 01/03/2022] [Indexed: 06/14/2023]
Abstract
Pristine and Ce doped TiO2 nanoparticles were fabricated for toxic pollutants removal from wastewater. Pristine, 2% Ce and 4% Ce doped TiO2 photocatalysts were produced via hydrothermal route. 4% Ce doped TiO2 exhibited 2.41 eV bandgap which is smaller than pure TiO2. The morphology was also investigated and it was established that doping of Ce ions enhanced the surface roughness and reduced the particle size. The surface area was characterized through BET analysis and 4% Ce-TiO2 possess higher surface with large pore diameter which helped the photocatalytic activity. The prepared photocatalysts were investigated on reduction of pollutants from wastewater under visible light. Higher efficiency was obtained for 4% Ce-TiO2 photocatalyst for both model pollutants. The "k" value possessed was also higher for the doped TiO2 catalyst. These analysis reports the optimum level of ceria doping to enhance morphology, surface area and it increased activity than bare TiO2. 4% Ce-TiO2 will be the potential candidate for efficient wastewater management. The 4% Ce doped TiO2 photocatalyst provided 77% and 88% on reducing MB and RhB dyes. The dopant has developed higher surface area, morphology and good recombination rate which reduced the toxic pollutants and changed the wastewater to reuse.
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Affiliation(s)
- S P Keerthana
- Department of Physics, Alagappa University, Karaikudi, 630 003, Tamil Nadu, India
| | - R Yuvakkumar
- Department of Physics, Alagappa University, Karaikudi, 630 003, Tamil Nadu, India.
| | - G Ravi
- Department of Physics, Alagappa University, Karaikudi, 630 003, Tamil Nadu, India.
| | - S I Hong
- Department of Materials Science and Engineering, Chungnam National University, Daejeon, South Korea
| | | | - Dhayalan Velauthapillai
- Faculty of Engineering and Science, Western Norway University of Applied Sciences, Bergen, 5063, Norway
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7
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Preparation and characterization of AM-co-APTAC/TiO2 nanocomposite for environmental applications. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-020-03512-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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8
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Wang Y, Gong X, Dong X, Tao X, Luo Y. Arsenite photo-oxidation and removal by ferrihydrite in the presence of oxalate: a pH dependence and surface-mediated process. NEW J CHEM 2022. [DOI: 10.1039/d1nj05219e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
As(iii) is removed via a surface-mediated process in a ferrihydrite/oxalate system, and the sources of HO˙ depend strongly on pH.
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Affiliation(s)
- Yajie Wang
- School of Eco-Environmental Engineering, Guizhou Minzu University, Guiyang 50025, China
| | - Xianhe Gong
- School of Eco-Environmental Engineering, Guizhou Minzu University, Guiyang 50025, China
| | - Xin Dong
- School of Eco-Environmental Engineering, Guizhou Minzu University, Guiyang 50025, China
| | - Xiuzhen Tao
- School of Eco-Environmental Engineering, Guizhou Minzu University, Guiyang 50025, China
| | - Yingchun Luo
- School of Chemical Engineering, Guizhou Minzu University, Guiyang 550025, China
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9
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Danfá S, Martins RC, Quina MJ, Gomes J. Supported TiO 2 in Ceramic Materials for the Photocatalytic Degradation of Contaminants of Emerging Concern in Liquid Effluents: A Review. Molecules 2021; 26:molecules26175363. [PMID: 34500795 PMCID: PMC8434047 DOI: 10.3390/molecules26175363] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 08/27/2021] [Accepted: 08/31/2021] [Indexed: 12/03/2022] Open
Abstract
The application of TiO2 as a slurry catalyst for the degradation of contaminants of emerging concern (CEC) in liquid effluents has some drawbacks due to the difficulties in the catalyst reutilization. Thus, sophisticated and expensive separation methods are required after the reaction step. Alternatively, several types of materials have been used to support powder catalysts, so that fixed or fluidized bed reactors may be used. In this context, the objective of this work is to systematize and analyze the results of research inherent to the application of ceramic materials as support of TiO2 in the photocatalytic CEC removal from liquid effluents. Firstly, an overview is given about the treatment processes able to degrade CEC. In particular, the photocatalysts supported in ceramic materials are analyzed, namely the immobilization techniques applied to support TiO2 in these materials. Finally, a critical review of the literature dedicated to photocatalysis with supported TiO2 is presented, where the performance of the catalyst is considered as well as the main drivers and barriers for implementing this process. A focal point in the future is to investigate the possibility of depurating effluents and promote water reuse in safe conditions, and the supported TiO2 in ceramic materials may play a role in this scope.
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Tahir MB, Farman S, Rasheed A, Alrobei H, Shahzad K, Ali AM, Muhammad S. Insight role of TiO2 to improve the photocatalytic performance of WO3 nanostructures for the efficient degradation of ciprofloxacin. Z PHYS CHEM 2021. [DOI: 10.1515/zpch-2021-3060] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The current research work is to investigate the photocatalytic efficiency and degradation of ciprofloxacin using WO3/TiO2 nanoparticles under visible light irradiation. The nanoparticles of tungsten trioxide (WO3) and its composite with titanium dioxide (TiO2) i.e. WO3/TiO2 was prepared by hydrothermal method. Four basic characterizations were performed to study the prepared sample materials. To study the morphology of the prepared samples, scanning electron microscopy (SEM) was used. The results of SEM clearly showed that tungsten trioxide (WO3) has Rectangular shaped structure. The average size of the pure Tungsten trioxide nanoparticles was about 40–540 nm. The composite of WO3/TiO2 has spherical structure. The reason behind that was the addition of TiO2 in WO3 changes the morphology of pure WO3, and transformed the rectangular structure to a spherical structure. The presence of TiO2 changes the position and orientation of the nanorods in all possible directions. For the detailed analysis of the functional groups present in these samples, band gap, and optical properties of these samples, Fourier transform infrared spectroscopy (FTIR), ultraviolet visible (UV–VIS) spectroscopy and Photoluminescence (PL) emission spectroscopy was used. UV–Vis spectroscopy results showed that the bandgaps of prepared catalysts vary within the range of 2.76 – 2.5 eV. This decrease in bandgap is directly related with the concentration ratio of TiO2 in WO3. The maximum excitation wavelength observed at 440 nm. The maximum degradation efficiency was at 2% of WO3/TiO2 composite catalyst due to unique morphological structure and increase rate of photo absorption.
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Affiliation(s)
- Muhammad Bilal Tahir
- Department of Physics , Khawaja Fareed University of Engineering and Information Technology , Rahim Yar Khan , Pakistan
| | - Sohail Farman
- Department of Physics , University of Gujrat , Gujrat , Pakistan
| | - Adil Rasheed
- Department of Botany , University of Gujrat , Gujrat , Pakistan
| | - Hussein Alrobei
- Department of Mechanical Engineering , College of Engineering, Prince Sattam Bin Abdulaziz University , Al Kharj , Kingdom of Saudi Arabia
| | - Khurram Shahzad
- Center of Excellence in Environmental Studies , King Abdulaziz University , Jeddah , 21589 , Kingdom of Saudi Arabia
| | - Arshid Mahmood Ali
- Department of Chemical and Materials Engineering , King Abdulaziz University , Jeddah , 21589 , Kingdom of Saudi Arabia
| | - Shabbir Muhammad
- Department of Physics , College of Science, King Khalid University , P.O. Box 9004 , Abha , 61413 , Kingdom of Saudi Arabia
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Tahir MB, Shafiq F, Sagir M, Tahir MS. Construction of visible-light-driven ternary ZnO-MoS2-BiVO4 composites for enhanced photocatalytic activity. APPLIED NANOSCIENCE 2021. [DOI: 10.1007/s13204-020-01572-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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12
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Impact of CuO incorporation on the photocatalytic enhancement of the mesostructured Fe2O3 nanocomposite. APPLIED NANOSCIENCE 2020. [DOI: 10.1007/s13204-020-01605-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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13
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Synthesis and characterizations of ZnMn2O4-ZnO nanocomposite photocatalyst for enlarged photocatalytic oxidation of ciprofloxacin using visible light irradiation. APPLIED NANOSCIENCE 2020. [DOI: 10.1007/s13204-020-01359-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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14
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Riaz S, Park SJ. An overview of TiO2-based photocatalytic membrane reactors for water and wastewater treatments. J IND ENG CHEM 2020. [DOI: 10.1016/j.jiec.2019.12.021] [Citation(s) in RCA: 79] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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15
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Shen Z, Zhang Q, Yin C, Kang S, Jia H, Li X, Li X, Wang Y, Cui L. Facile synthesis of 3D flower-like mesoporous Ce-ZnO at room temperature for the sunlight-driven photocatalytic degradations of RhB and phenol. J Colloid Interface Sci 2019; 556:726-733. [PMID: 31499443 DOI: 10.1016/j.jcis.2019.08.111] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Revised: 08/27/2019] [Accepted: 08/29/2019] [Indexed: 10/26/2022]
Abstract
A 3D flower-like mesoporous Ce doped ZnO composite composed of nanosheets was prepared by a facile, one-step wet chemical method at room temperature. It was found that the moderate Ce doping can improve the light absorption of ZnO. The photocatalytic activities of the samples were studied by the degradation of Rhodamine B (RhB) and phenol under stimulated sunlight. The 1% mole ratio of Ce doped ZnO composites (denoted as CZ1) showed higher photocatalytic performance than other samples, where 85.1% of RhB and 69.6% of phenol can be removed within 125 min and 120 min, respectively. The Ce4+ doped in the lattice of ZnO can act as the electron trapping sites, which effectively improve the electron-hole separation. In addition, it was also found the annealing temperature had effect on the morphology and structure of Ce doped ZnO. The photocatalytic performance can be further enhanced at proper annealing temperature (500 °C) due to the increase of ZnO crystallinity with maintained flower-like structure and the formation of CeO2-ZnO heterojunction at their tight interface promoting the separation of photogenerated electron-hole pairs.
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Affiliation(s)
- Zhangfeng Shen
- School of Biological and Chemical Engineering, Jiaxing University, Jiaxing, Zhejiang 314001, PR China
| | - Qiulin Zhang
- School of Biological and Chemical Engineering, Jiaxing University, Jiaxing, Zhejiang 314001, PR China; Department of Environmental Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, PR China
| | - Chaochuang Yin
- School of Biological and Chemical Engineering, Jiaxing University, Jiaxing, Zhejiang 314001, PR China; Department of Environmental Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, PR China
| | - Shifei Kang
- Department of Environmental Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, PR China
| | - Hongyan Jia
- School of Biological and Chemical Engineering, Jiaxing University, Jiaxing, Zhejiang 314001, PR China
| | - Xing Li
- Department of Environmental Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, PR China
| | - Xi Li
- School of Biological and Chemical Engineering, Jiaxing University, Jiaxing, Zhejiang 314001, PR China
| | - Yangang Wang
- School of Biological and Chemical Engineering, Jiaxing University, Jiaxing, Zhejiang 314001, PR China.
| | - Lifeng Cui
- Department of Environmental Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, PR China.
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Sáringer S, Rouster P, Szilágyi I. Regulation of the Stability of Titania Nanosheet Dispersions with Oppositely and Like-Charged Polyelectrolytes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:4986-4994. [PMID: 30888825 DOI: 10.1021/acs.langmuir.9b00242] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Charging and aggregation processes of titania nanosheets (TNS) were extensively studied in the presence of oppositely charged or like-charged polyelectrolytes in aqueous dispersions. The surface charge of the TNS was systematically varied by the pH; therefore, positive nanosheets were obtained at pH 4 and negative ones at pH 10. Strong adsorption of poly(styrene sulfonate) (PSS) of high negative line charge density on the TNS was observed at pH 4, leading to charge neutralization and reversal of the original sign of charge of the nanosheets. The adsorption of like-charged poly(diallyldimethylammonium chloride) (PDADMAC) was also feasible through a hydrophobic interaction. The predominating interparticle forces were mainly of the DLVO-type, but additional patch-charge attraction also took place in the case of PSS at low surface coverage. The TNS was found to be hydrophilic at pH 10 and no adsorption of like-charged PSS was possible because of strong electrostatic repulsion between the polyelectrolyte and the surface. The PDADMAC showed high affinity to the oppositely charged TNS surface in alkaline dispersions, giving rise to neutral and positively charged nanosheets at appropriate polyelectrolyte doses. Formation of a saturated PDADMAC layer on the TNS led to high resistance against salt-induced aggregation through the electrosteric stabilization mechanism. These results shed light on the importance of polyelectrolyte concentration, ionic strength, and charge balance on the colloidal stability of TNS, which is especially important in applications, where the nanosheets are dispersed in complex solution containing polymeric compounds and electrolytes.
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Affiliation(s)
| | - Paul Rouster
- Institute of Condensed Matter and Nanosciences-Bio and Soft Matter , Université Catholique de Louvain , B-1348 Louvain-la-Neuve , Belgium
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Wu Z, Zeng D, Liu X, Yu C, Yang K, Liu M. Hierarchical δ-Bi2O3/Bi2O2CO3 composite microspheres: phase transformation fabrication, characterization and high photocatalytic performance. RESEARCH ON CHEMICAL INTERMEDIATES 2018. [DOI: 10.1007/s11164-018-3471-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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18
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Photocatalytic degradation of ciprofloxacin by a novel Z-scheme CeO2–Ag/AgBr photocatalyst: Influencing factors, possible degradation pathways, and mechanism insight. J Catal 2018. [DOI: 10.1016/j.jcat.2017.11.029] [Citation(s) in RCA: 308] [Impact Index Per Article: 51.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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19
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Lan H, Li L, Liu H, An X, Liu F, Chen C, Qu J. Melem-based derivatives as metal-free photocatalysts for simultaneous reduction of Cr(VI) and degradation of 5-Sulfosalicylic acid. J Colloid Interface Sci 2017; 507:162-171. [DOI: 10.1016/j.jcis.2017.07.099] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Revised: 07/24/2017] [Accepted: 07/27/2017] [Indexed: 10/19/2022]
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20
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Zheng T, Li P, Shi Z, Liu J. Benchmarking the scientific research on wastewater-energy nexus by using bibliometric analysis. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:27613-27630. [PMID: 29134520 DOI: 10.1007/s11356-017-0696-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Accepted: 11/06/2017] [Indexed: 06/07/2023]
Abstract
With an exponential increase in urbanization and industrialization, water pollution is an inevitable consequence of relatively lagging wastewater treatment facilities. The conventional activated sludge process for wastewater treatment primarily emphasizes the removal of harmful substances to maintain increasingly stringent effluent discharged standards, which is considered an energy-intensive technique. Therefore, innovative and sustainable wastewater treatment should pay more attention to energy and resource recovery in dealing with fossil fuel depletion, global-scale energy security, and climate change. A bibliometric analysis was applied to trace wastewater-energy nexus-related research during the period 1991 to 2015, with respect to the Science Citation Index EXPANDED (SCI-EXPANDED) database. Journal of Hazardous Materials, ranking 1st in h-index (79), was the most productive journal (431, 4.5%) during the same time, followed by International Journal of Hydrogen Energy (422, 4.4%) and Water Research (393, 4.1%) journal, the latter owning a topmost journal impact factor. Though, China (2154, 22.5%) was the most productive country, while the USA with highest h-index (88) was the favorest collaborative country. The Chinese Academy of Sciences, China (241, 2.5%) produced the maximum publications. A novel method called "word cluster analysis" showed that the emerging sustainable processes and novel renewable energy application are applied in response to the desire for a net wastewater-energy nexus system. Based on different wastewater types, the emerging energy and sources recovery treatment processes of Anammox, anaerobic digestion, and microbial fuel cells gained extensive innovation. Evaluation indicators including sustainability, life cycle assessment, and environmental impact were appropriately used to dissert feasibility of the novel treatment methods in regard of renewable energy utilization, energy savings, and energy recovery. The transformation of the new concept of "broaden income source, economize on expenditures and exploit inner potential" should be generalized in order to achieve an environmentally sustainable development of wastewater-energy nexus system.
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Affiliation(s)
- Tianlong Zheng
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Road, Haidian District, Beijing, 100085, China.
| | - Pengyu Li
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Road, Haidian District, Beijing, 100085, China
- University of Chinese Academy of Sciences, 19(A) Yuquan Road, Shijingshan District, Beijing, 100049, China
| | - Zhining Shi
- School of Chemical Engineering, The University of Adelaide, Adelaide, South Australia, 5005, Australia
| | - Jianguo Liu
- College of Energy and Power Engineering, Inner Mongolia University of Technology, 49 Aiminjie, Xincheng District, Hohhot, Inner Mongolia, 010051, China
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21
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Xue S, He H, Fan Q, Yu C, Yang K, Huang W, Zhou Y, Xie Y. La/Ce-codoped Bi 2O 3 composite photocatalysts with high photocatalytic performance in removal of high concentration dye. J Environ Sci (China) 2017; 60:70-77. [PMID: 29031448 DOI: 10.1016/j.jes.2016.09.022] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Revised: 09/06/2016] [Accepted: 09/21/2016] [Indexed: 06/07/2023]
Abstract
A series of La/Ce-codoped Bi2O3 composite photocatalysts were fabricated via hydrothermal-calcination process. The as-prepared products were intensively characterized by some physicochemical characterizations like N2 physical adsorption, X-ray powder diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), UV-Vis diffuse reflectance (UV-Vis DRS), Fourier transform infrared spectroscopy (FT-IR), photoelectrochemical measurements, and photoluminescence (PL) spectroscopy. The characterization results indicated that La and Ce doping induced obvious crystal phase transformation in Bi2O3, from monoclinic to tetragonal phase. La and Ce codoping also gave rise to the obvious synergetic effects, e.g., the lattice contraction of Bi2O3, the decrease of crystal size and the increase of surface area. The photocatalytic performance of the prepared catalysts was evaluated by removal of dye acid orange II with high concentration under visible light irradiation. Results showed that La/Ce-codoped Bi2O3 displayed much higher photocatalytic performance than that of bare Bi2O3, single La or Ce doped Bi2O3 samples. The superior photocatalytic activity was mainly attributed to the improved texture and surface properties and the synergistic effects of La and Ce codoping on suppressing the recombination of photo-generated electrons (e-) and holes (h+).
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Affiliation(s)
- Shuangshuang Xue
- School of Metallurgy and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - Hongbo He
- School of Metallurgy and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - Qizhe Fan
- School of Metallurgy and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - Changlin Yu
- School of Metallurgy and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China.
| | - Kai Yang
- School of Metallurgy and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - Weiya Huang
- School of Metallurgy and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - Yang Zhou
- School of Metallurgy and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - Yu Xie
- College of Environment and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063, Jiangxi, China.
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22
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Liu S, Hu Q, Qiu J, Wang F, Lin W, Zhu F, Wei C, Zhou N, Ouyang G. Enhanced Photocatalytic Degradation of Environmental Pollutants under Visible Irradiation by a Composite Coating. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:5137-5145. [PMID: 28379014 DOI: 10.1021/acs.est.7b00350] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Although nanotechnology has offered effective and efficient solutions for environmental remediation, the full utilization of sustainable energy and the avoidance of secondary pollution are still challenges. Herein, we report a two-step modification strategy for TiO2 nanoparticles by first forming a thin, surface-adherent polydopamine (PDA) shell onto the nanoparticles and then assembling core-shell nanoparticles as a photodegradation coating. The composite coating modified from TiO2 could not only realize the highly efficient utilization of photons from the visible region but also avoid the secondary pollution of nanoparticles during application. Additionally, improvements in the adsorption ability after modification greatly facilitated the photocatalytic process of the modified materials. A preliminary in vivo study on Daphnia magna and a wastewater treatment experiment suggest that treatment with the composite coating can effectively eliminate fluorene and significantly reduce its lethality. We believe the two-step modification scheme can open new avenues for the facile modification of nanomaterials for designed purposes, especially in the field of environmental remediation.
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Affiliation(s)
- Shuqin Liu
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University , No. 135, Xingang Xi Road, Guangzhou, Guangdong 510275, China
| | - Qingkun Hu
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University , No. 135, Xingang Xi Road, Guangzhou, Guangdong 510275, China
| | - Junlang Qiu
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University , No. 135, Xingang Xi Road, Guangzhou, Guangdong 510275, China
| | - Fuxin Wang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University , No. 135, Xingang Xi Road, Guangzhou, Guangdong 510275, China
| | - Wei Lin
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University , No. 135, Xingang Xi Road, Guangzhou, Guangdong 510275, China
| | - Fang Zhu
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University , No. 135, Xingang Xi Road, Guangzhou, Guangdong 510275, China
| | - Chaohai Wei
- College of Environment and Energy, South China University of Technology , Guangzhou 510006, PR China
| | - Ningbo Zhou
- College of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology , Yueyang 414006, PR China
| | - Gangfeng Ouyang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University , No. 135, Xingang Xi Road, Guangzhou, Guangdong 510275, China
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23
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Ambrosio E, Lucca DL, Garcia MHB, de Souza MTF, de S Freitas TKF, de Souza RP, Visentainer JV, Garcia JC. Optimization of photocatalytic degradation of biodiesel using TiO 2/H 2O 2 by experimental design. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 581-582:1-9. [PMID: 28068642 DOI: 10.1016/j.scitotenv.2016.11.177] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 11/09/2016] [Accepted: 11/24/2016] [Indexed: 06/06/2023]
Abstract
This study reports on the investigation of the photodegradation of biodiesel (B100) in contact with water using TiO2/H2O2. The TiO2 was characterized by X-ray diffraction analysis (XRD), pH point of zero charge (pHpzc) and textural analysis. The results of the experiments were fitted to a quadratic polynomial model developed using response surface methodology (RSM) to optimize the parameters. Using the three factors, three levels, and the Box-Behnken design of experiment technique, 15 sets of experiments were designed considering the effective ranges of the influential parameters. The responses of those parameters were optimized using computational techniques. After 24h of irradiation under an Hg vapor lamp, removal of 22.0% of the oils and greases (OG) and a 33.54% reduction in the total of fatty acid methyl ester (FAME) concentration was observed in the aqueous phase, as determined using gas chromatography coupled with flame ionization detection (GC/FID). The estimate of FAMEs undergo base-catalyzed hydrolysis is at least 3years (1095days) and after photocatalytic treatment using TiO2/H2O2, it was reduced to 33.54% of FAMEs in only 1day.
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Affiliation(s)
- Elizangela Ambrosio
- Department of Chemistry, State University of Maringá, Av. Colombo 5790, Maringá, Paraná 87020-900, Brazil
| | - Diego L Lucca
- Department of Chemistry, State University of Maringá, Av. Colombo 5790, Maringá, Paraná 87020-900, Brazil
| | - Maicon H B Garcia
- Department of Chemistry, State University of Maringá, Av. Colombo 5790, Maringá, Paraná 87020-900, Brazil
| | - Maísa T F de Souza
- Department of Chemistry, State University of Maringá, Av. Colombo 5790, Maringá, Paraná 87020-900, Brazil
| | - Thábata K F de S Freitas
- Department of Chemistry, State University of Maringá, Av. Colombo 5790, Maringá, Paraná 87020-900, Brazil
| | - Renata P de Souza
- Department of Chemistry, State University of Maringá, Av. Colombo 5790, Maringá, Paraná 87020-900, Brazil
| | - Jesuí V Visentainer
- Department of Chemistry, State University of Maringá, Av. Colombo 5790, Maringá, Paraná 87020-900, Brazil
| | - Juliana C Garcia
- Department of Chemistry, State University of Maringá, Av. Colombo 5790, Maringá, Paraná 87020-900, Brazil.
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24
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Colombo E, Li W, Bhangu SK, Ashokkumar M. Chitosan microspheres as a template for TiO2and ZnO microparticles: studies on mechanism, functionalization and applications in photocatalysis and H2S removal. RSC Adv 2017. [DOI: 10.1039/c7ra01227f] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Highly efficient micron-sized photocatalysts with easy removability and recyclability features.
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Affiliation(s)
| | - Wu Li
- School of Chemistry
- University of Melbourne
- Australia
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25
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Li L, Gong L, Wang YX, Liu Q, Zhang J, Mu Y, Yu HQ. Removal of halogenated emerging contaminants from water by nitrogen-doped graphene decorated with palladium nanoparticles: Experimental investigation and theoretical analysis. WATER RESEARCH 2016; 98:235-241. [PMID: 27107141 DOI: 10.1016/j.watres.2016.04.024] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Revised: 04/10/2016] [Accepted: 04/13/2016] [Indexed: 06/05/2023]
Abstract
The removal performance and mechanisms of halogenated emerging contaminants from water by palladium decorated nitrogen-doped graphene (Pd/NG) were investigated in this study. For comparison, three catalysts of Pd/NG, palladium decorated graphene (Pd/G) and commercial Pd/C were initially explored to degrade tetrabromobisphenol A (TBBPA). After that, the influence of various environmental parameters on TBBPA removal by the Pd/NG catalyst was evaluated. Moreover, both Langmuir-Hinshelwood model and density functional theory (DFT) were adopted to theoretically elucidate the adsorption and the activation of TBBPA on the catalyst. The results show that the apparent rate constant of TBBPA dehalogenation was increased by 26.7% and 39.0% in the presence of the Pd/NG catalyst compared to the Pd/G and Pd/C ones. Higher temperature, catalyst dosage and alkaline conditions resulted in the enhancement of TBBPA dehalogenation by the Pd/NG catalyst, while humic acid in the solution had a negatively effect on the transformation of TBBPA. The corresponding rate constant value exhibited a 2.1- and 1.8-fold increase with the rise of temperature from 298 to 328 K and initial pH from 6.5 to 9.0, respectively. On the contrary, the rate constant was decreased by 78.9% in the presence of 15 mg L(-1) humic acid. Theoretical analysis revealed that both adsorption and activation processes of TBBPA on the Pd/NG catalyst were enhanced through the N doping into graphene framework.
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Affiliation(s)
- Lei Li
- CAS Key Laboratory of Urban Pollutant Conversion, Collaborative Innovation Centre of Suzhou Nano Science and Technology, Department of Chemistry, University of Science and Technology of China, Hefei, China
| | - Li Gong
- CAS Key Laboratory of Urban Pollutant Conversion, Collaborative Innovation Centre of Suzhou Nano Science and Technology, Department of Chemistry, University of Science and Technology of China, Hefei, China
| | - Yi-Xuan Wang
- CAS Key Laboratory of Urban Pollutant Conversion, Collaborative Innovation Centre of Suzhou Nano Science and Technology, Department of Chemistry, University of Science and Technology of China, Hefei, China
| | - Qi Liu
- CAS Key Laboratory of Urban Pollutant Conversion, Collaborative Innovation Centre of Suzhou Nano Science and Technology, Department of Chemistry, University of Science and Technology of China, Hefei, China
| | - Jie Zhang
- CAS Key Laboratory of Urban Pollutant Conversion, Collaborative Innovation Centre of Suzhou Nano Science and Technology, Department of Chemistry, University of Science and Technology of China, Hefei, China
| | - Yang Mu
- CAS Key Laboratory of Urban Pollutant Conversion, Collaborative Innovation Centre of Suzhou Nano Science and Technology, Department of Chemistry, University of Science and Technology of China, Hefei, China.
| | - Han-Qing Yu
- CAS Key Laboratory of Urban Pollutant Conversion, Collaborative Innovation Centre of Suzhou Nano Science and Technology, Department of Chemistry, University of Science and Technology of China, Hefei, China
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26
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Niu Y, Li F, Yang K, Qiu T, Wang R, Lin C. Preparation and characterization of sulfated TiO 2 with rhodium modification used in esterification reaction and decomposition of methyl orange. Chin J Chem Eng 2016. [DOI: 10.1016/j.cjche.2015.12.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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27
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Fallah Talooki E, Ghorbani M, Ashgar Ghoreyshi A. Synthesis and Characterization of Polymer-Based Magnetic Nanocomposite with Uniformly Distributed Hematite Nanoparticles on the Surface of Polystyrene Aromatic Compound. Polycycl Aromat Compd 2015. [DOI: 10.1080/10406638.2015.1011287] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
| | - Mohsen Ghorbani
- Department of Chemical Engineering Babol University of Technology, Babol, Iran
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28
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Pongwan P, Wetchakun K, Phanichphant S, Wetchakun N. Enhancement of visible-light photocatalytic activity of Cu-doped TiO2 nanoparticles. RESEARCH ON CHEMICAL INTERMEDIATES 2015. [DOI: 10.1007/s11164-015-2179-y] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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29
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Li JD, Yu CL, Fang W, Zhu LH, Zhou WQ, Fan QZ. Preparation, characterization and photocatalytic performance of heterostructured AgCl/Bi2WO6 microspheres. CHINESE JOURNAL OF CATALYSIS 2015. [DOI: 10.1016/s1872-2067(15)60849-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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30
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Maslova MV, Gerasimova LG, Knyazeva AI. Synthesis of sorbent based on hydrated hydroxooxotitane. RUSS J INORG CHEM+ 2015. [DOI: 10.1134/s0036023615040154] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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31
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Photocatalytic treatment of textile effluent using titania–zirconia nano composite catalyst. J IND ENG CHEM 2015. [DOI: 10.1016/j.jiec.2014.09.037] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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32
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Park SB, Sivaranjani K, Na HJ, Li Z, Choi YJ, Yang YJ, Man Kim J. Facile Synthesis of Thermally Stable Mesoporous Titania Spheres with Excellent Photocatalytic Activity. CHEM LETT 2015. [DOI: 10.1246/cl.140877] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Su Bin Park
- Department of Chemistry, Sungkyunkwan University
| | | | - Hyun Jung Na
- Department of Chemistry, Sungkyunkwan University
| | - Zhenghua Li
- Department of Chemistry, Sungkyunkwan University
| | - Yeong-Jin Choi
- Department of Chemistry, Sungkyunkwan University
- Amorepacific R&D Center
| | | | - Ji Man Kim
- Department of Chemistry, Sungkyunkwan University
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33
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Lu Z, Xiang X, Zou L, Xie J. Fluffy-ball-shaped carbon nanotube–TiO2 nanorod nanocomposites for photocatalytic degradation of methylene blue. RSC Adv 2015. [DOI: 10.1039/c5ra05641a] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Fluffy-ball-shaped multiwalled CNT–TiO2 nanorod composites were fabricated via a facile hydrothermal approach for the photocatalytic degradation of methylene blue.
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Affiliation(s)
- Zhisong Lu
- Chongqing Key Laboratory for Advanced Materials & Technologies of Clean Energies
- Southwest University
- Chongqing 400715
- P. R. China
- Institute for Clean Energy & Advanced Materials
| | - Xiutao Xiang
- Chongqing Key Laboratory for Advanced Materials & Technologies of Clean Energies
- Southwest University
- Chongqing 400715
- P. R. China
- Institute for Clean Energy & Advanced Materials
| | - Long Zou
- Chongqing Key Laboratory for Advanced Materials & Technologies of Clean Energies
- Southwest University
- Chongqing 400715
- P. R. China
- Institute for Clean Energy & Advanced Materials
| | - Jiale Xie
- Chongqing Key Laboratory for Advanced Materials & Technologies of Clean Energies
- Southwest University
- Chongqing 400715
- P. R. China
- Institute for Clean Energy & Advanced Materials
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34
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Murali A, Gurusamy-Thangavelu SA, Jaisankar SN, Mandal AB. Enhancement of the physicochemical properties of polyurethane–perovskite nanocomposites via addition of nickel titanate nanoparticles. RSC Adv 2015. [DOI: 10.1039/c5ra17922j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Perovskite is integrated by in situ addition with polyurethane (PU) to form unprecedented nanocomposite films (~1.5 mm). Trace amount of NiTiO3 NPs (0.5 wt%) has been added to enhance the physicochemical, electrical, optical and magnetic properties.
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Affiliation(s)
- Adhigan Murali
- Polymer Division
- Council of Scientific and Industrial Research (CSIR)-Central Leather Research Institute (CLRI)
- Chennai-600 020
- India
| | - Senthil A. Gurusamy-Thangavelu
- Polymer Division
- Council of Scientific and Industrial Research (CSIR)-Central Leather Research Institute (CLRI)
- Chennai-600 020
- India
| | - Sellamuthu N. Jaisankar
- Polymer Division
- Council of Scientific and Industrial Research (CSIR)-Central Leather Research Institute (CLRI)
- Chennai-600 020
- India
| | - Asit Baran Mandal
- Polymer Division
- Council of Scientific and Industrial Research (CSIR)-Central Leather Research Institute (CLRI)
- Chennai-600 020
- India
- Chemical Laboratory
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35
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Leong S, Razmjou A, Wang K, Hapgood K, Zhang X, Wang H. TiO2 based photocatalytic membranes: A review. J Memb Sci 2014. [DOI: 10.1016/j.memsci.2014.08.016] [Citation(s) in RCA: 332] [Impact Index Per Article: 33.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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36
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Zhu YP, Ren TZ, Yuan ZY. Hollow cobalt phosphonate spherical hybrid as high-efficiency Fenton catalyst. NANOSCALE 2014; 6:11395-11402. [PMID: 25148292 DOI: 10.1039/c4nr02679a] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Organic-inorganic hybrid of cobalt phosphonate hollow nanostructured spheres were prepared in a water-ethanol system through a mild hydrothermal process in the absence of any templates using diethylenetriamine penta(methylene phosphonic acid) as bridging molecule. SEM, TEM and N2 sorption characterization confirmed a hollow spherical micromorphology with well-defined porosity. The structure and chemical states of the hybrid materials were investigated by FT-IR, XPS and thermogravimetric analysis, revealing the homogeneous integrity of inorganic and organic units inside the network. As a heterogeneous catalyst, hollow cobalt phosphonate material exhibited considerable catalytic oxidizing decomposition of methylene blue with sulfate radicals as compared to cobalt phosphonate nanoparticles synthesized in single water system, which could be attributed to enhanced mass transfer and high surface area for the hollow material. Some operational parameters, including pH and reaction temperature, were found to influence the oxidation process. The present results suggest that cobalt phosphonate material can perform as an efficient heterogeneous catalyst for the degradation of organic contaminants, providing insights into the rational design and development of alternative catalysts for wastewater treatment.
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Affiliation(s)
- Yun-Pei Zhu
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin 300071, China.
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37
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Magnetically separable attapulgite−TiO2−Fe O composites with superior activity towards photodegradation of methyl orange under visible light radiation. J IND ENG CHEM 2014. [DOI: 10.1016/j.jiec.2013.12.094] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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38
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Yang Y, Liu E, Fan J, Hu X, Hou W, Wu F, Ma Y. Green and facile microwave-assisted synthesis of TiO2/graphene nanocomposite and their photocatalytic activity for methylene blue degradation. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2014. [DOI: 10.1134/s0036024414030303] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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39
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Zhuang H, Gu Q, Long J, Lin H, Lin H, Wang X. Visible light-driven decomposition of gaseous benzene on robust Sn2+-doped anatase TiO2 nanoparticles. RSC Adv 2014. [DOI: 10.1039/c4ra05904b] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
The Sn2+-doped TiO2 nanoparticles are excellent and promising visible-light photocatalysts for the decomposition of benzene with robust photostability.
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Affiliation(s)
- Huaqiang Zhuang
- Research Institute of Photocatalysis
- State Key Laboratory of Photocatalysis on Energy and Environment
- College of Chemistry
- Fuzhou University
- Fuzhou 350116, People's Republic of China
| | - Quan Gu
- Research Institute of Photocatalysis
- State Key Laboratory of Photocatalysis on Energy and Environment
- College of Chemistry
- Fuzhou University
- Fuzhou 350116, People's Republic of China
| | - Jinlin Long
- Research Institute of Photocatalysis
- State Key Laboratory of Photocatalysis on Energy and Environment
- College of Chemistry
- Fuzhou University
- Fuzhou 350116, People's Republic of China
| | - Huan Lin
- Research Institute of Photocatalysis
- State Key Laboratory of Photocatalysis on Energy and Environment
- College of Chemistry
- Fuzhou University
- Fuzhou 350116, People's Republic of China
| | - Huaxiang Lin
- Research Institute of Photocatalysis
- State Key Laboratory of Photocatalysis on Energy and Environment
- College of Chemistry
- Fuzhou University
- Fuzhou 350116, People's Republic of China
| | - Xuxu Wang
- Research Institute of Photocatalysis
- State Key Laboratory of Photocatalysis on Energy and Environment
- College of Chemistry
- Fuzhou University
- Fuzhou 350116, People's Republic of China
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40
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Photocatalyst separation from aqueous dispersion using graphene oxide/TiO2 nanocomposites. Colloids Surf A Physicochem Eng Asp 2013. [DOI: 10.1016/j.colsurfa.2013.04.063] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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41
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Ramasundaram S, Yoo HN, Song KG, Lee J, Choi KJ, Hong SW. Titanium dioxide nanofibers integrated stainless steel filter for photocatalytic degradation of pharmaceutical compounds. JOURNAL OF HAZARDOUS MATERIALS 2013; 258-259:124-132. [PMID: 23721729 DOI: 10.1016/j.jhazmat.2013.04.047] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2013] [Revised: 04/06/2013] [Accepted: 04/27/2013] [Indexed: 06/02/2023]
Abstract
A photocatalytically active stainless steel filter (P-SSF) was prepared by integrating electrospun TiO2 nanofibers on SSF surface through a hot-press process where a poly(vinylidene fluoride) (PVDF) nanofibers interlayer acted as a binder. By quantifying the photocatalytic oxidation of cimetidine under ultraviolet radiation and assessing the stability of TiO2 nanofibers integrated on the P-SSF against sonication, the optimum thickness of the TiO2 and PVDF layer was found to be 29 and 42 μm, respectively. At 10L/m(2)h flux, 40-90% of cimetidine was oxidized when the thickness of TiO2 layer increased from 10 to 29 μm; however, no further increase of cimetidine oxidation was observed as its thickness increased to 84 μm, maybe due to limited light penetration. At flux conditions of 10, 20, and 50 L/m(2) h, the oxidation efficiencies for cimetidine were found to be 89, 64, and 47%, respectively. This was attributed to reduced contact time of cimetidine within the TiO2 layer. Further, the degradation efficacy of cimetidine was stably maintained for 72 h at a flux of 10 L/m(2) h and a trans-filter pressure of 0.1-0.2 kPa. Overall, our results showed that it can potentially be employed in the treatment of effluents containing organic micropollutants.
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Affiliation(s)
- Subramaniyan Ramasundaram
- Center for Water Resource Cycle Research, Korea Institute of Science and Technology, Seongbuk-gu, Seoul 136-791, Republic of Korea
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Yu C, Yang K, Xie Y, Fan Q, Yu JC, Shu Q, Wang C. Novel hollow Pt-ZnO nanocomposite microspheres with hierarchical structure and enhanced photocatalytic activity and stability. NANOSCALE 2013; 5:2142-2151. [PMID: 23385557 DOI: 10.1039/c2nr33595f] [Citation(s) in RCA: 130] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Noble metal/semiconductor nanocomposites play an important role in high efficient photocatalysis. Herein, we demonstrate a facile strategy for fabrication of hollow Pt-ZnO nanocomposite microspheres with hierarchical structure under mild solvothermal conditions using Zn (CH(3)COO)(2)·2H(2)O and HPtCl(4) as the precursors, and polyethylene glycol-6000 (PEG-6000) and ethylene glycol as the reducing agent and solvent, respectively. The as-synthesized ZnO and Pt-ZnO composite nanocrystals were well characterized by powder X-ray diffraction (XRD), nitrogen-physical adsorption, scanning electron microscopy (SEM), energy dispersive X-ray (EDX), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), UV-vis diffuse reflectance spectra (DRS), and photoluminescence (PL) emission spectroscopy. It was found that Pt content greatly influences the morphology of Pt-ZnO composite nanocrystals. Suitable concentration of HPtCl(4) in the reaction solution system can produce well hierarchically hollow Pt-ZnO nanocomposite microspheres, which are composed of an assembly of fine Pt-ZnO nanocrystals. Photocatalytic tests of the Pt-ZnO microspheres for the degradation of the dye acid orange II revealed extremely high photocatalytic activity and stability compared with those of pure ZnO and corresponding Pt deposited ZnO. The remarkable photocatalytic performance of hollow Pt-ZnO microspheres mainly originated from their unique nanostructures and the low recombination rate of the e(-)/h(+) pairs by the platinum nanoparticles embedded in ZnO nanocrystals.
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Affiliation(s)
- Changlin Yu
- School of Metallurgy and Chemical Engineering, Jiangxi University of Science and Technology, 86 Hongqi Road, Ganzhou 341000, Jiangxi, PR China.
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Yu J, Li Q, Liu S, Jaroniec M. Ionic-Liquid-Assisted Synthesis of Uniform Fluorinated B/C-Codoped TiO2Nanocrystals and Their Enhanced Visible-Light Photocatalytic Activity. Chemistry 2013; 19:2433-41. [DOI: 10.1002/chem.201202778] [Citation(s) in RCA: 139] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2012] [Revised: 11/06/2012] [Indexed: 11/08/2022]
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Zhang T, Yan X, Sun DD. Hierarchically multifunctional K-OMS-2/TiO2/Fe3O4 heterojunctions for the photocatalytic oxidation of humic acid under solar light irradiation. JOURNAL OF HAZARDOUS MATERIALS 2012; 243:302-310. [PMID: 23140876 DOI: 10.1016/j.jhazmat.2012.10.037] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2012] [Revised: 10/15/2012] [Accepted: 10/18/2012] [Indexed: 06/01/2023]
Abstract
A multifunctional heterojunctioned K-OMS-2/TiO(2)/Fe(3)O(4) (KTF) nanocomposite was successfully synthesized using a combination of hydrothermal and co-precipitation techniques. The resultant sample was characterized by XRD, FESEM, TEM, N(2) adsorption, XPS and VSM. Its photocatalytic activity was demonstrated in the photocatalytic degradation of humic acid (HA). Morphology characterization showed the hierarchical structure of the synthesized material, and XRD results revealed that both the rutile and anatase TiO(2) structures are present in the sample. The average pore diameters and BET surface area of the synthesized KTF heterojunctions were 40 nm and 134.42 m(2)/g, respectively. XPS spectra confirmed the presence of Fe(3)O(4) and TiO(2) in the synthesized material, and the valences of Mn were kept at +3 and +4 after the grafting of Fe(3)O(4) and TiO(2). The synthesized material showed good magnetic response and photocatalytic activity under simulated solar light irradiation, and 85.7% of HA was decomposed after 120 min in the presence of KTF nanocomposites. The reusability study suggested that the magnetic recovered material was stable enough for multiple recycling usages, verifying its potential application in water purification.
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Affiliation(s)
- Tong Zhang
- School of Civil and Environmental Engineering, Nanyang Technological University, Nanyang Avenue, 639798 Singapore, Singapore
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Fan J, Zhao L, Yu J, Liu G. The effect of calcination temperature on the microstructure and photocatalytic activity of TiO2-based composite nanotubes prepared by an in situ template dissolution method. NANOSCALE 2012; 4:6597-6603. [PMID: 22975869 DOI: 10.1039/c2nr32048g] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
TiO(2)-based composite nanotubes, based on an in situ template dissolution method, were one-step fabricated in a mixed aqueous solution of ammonium hexafluorotitanate and boric acid using ZnO nanorods as templates, and then the samples were calcined at different temperatures. The photocatalytic activity of the samples was evaluated by photocatalytic decoloration of Methyl Orange (MO) aqueous solution at ambient temperature under UV light. The results showed that the prepared sample possessed nanoscale tubular morphology with a wall thickness of ca. 30-50 nm, inner diameters of ca. 50-150 nm and lengths of ca. 400-2000 nm. The calcined samples exhibited excellent stabilization of the anatase phase in a wide temperature range of 300-800 °C. The un-calcined and calcined samples possessed hierarchically macro-mesoporous structures. The sample calcined at 600 °C exhibited the highest photocatalytic activity, corresponding to the maximal formation rate of ˙OH on the photocatalyst. This is attributed to the improvement of anatase TiO(2) crystallization, the formation of multi-phase structures including anatase, cubic Zn(2)TiO(4), hexagonal ZnTiO(3) and cubic ZnTiO(3), and the presence of hierarchically macro-mesoporous structures.
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Affiliation(s)
- Jiajie Fan
- State Key Laboratory of Advanced Technology for Material Synthesis and processing, Wuhan University of Technology, Wuhan, 430070, PR China
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Smirnov EA, Meledina MA, Garshev AV, Chelpanov VI, Frost S, Wieneke JU, Ulbricht M. Grafting of titanium dioxide microspheres with a temperature-responsive polymer via surface-initiated atom transfer radical polymerization without the use of silane coupling agents. POLYM INT 2012. [DOI: 10.1002/pi.4377] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Eugene A Smirnov
- Department of Material Science; Moscow State University; 119991 Moscow Russia
- Lehrstuhl für Technische Chemie II; Universität Duisburg-Essen; 45141 Essen Germany
| | - Maria A Meledina
- Department of Material Science; Moscow State University; 119991 Moscow Russia
| | - Alexey V Garshev
- Department of Material Science; Moscow State University; 119991 Moscow Russia
| | - Vitaly I Chelpanov
- Department of Material Science; Moscow State University; 119991 Moscow Russia
| | - Sven Frost
- Lehrstuhl für Technische Chemie II; Universität Duisburg-Essen; 45141 Essen Germany
- CeNIDE - Center for Nanointegration Duisburg-Essen; 47057 Duisburg Germany
| | - Jan U Wieneke
- Lehrstuhl für Technische Chemie II; Universität Duisburg-Essen; 45141 Essen Germany
- CeNIDE - Center for Nanointegration Duisburg-Essen; 47057 Duisburg Germany
| | - Mathias Ulbricht
- Lehrstuhl für Technische Chemie II; Universität Duisburg-Essen; 45141 Essen Germany
- CeNIDE - Center for Nanointegration Duisburg-Essen; 47057 Duisburg Germany
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Jamil TS, Ghaly MY, Fathy NA, Abd el-halim TA, Österlund L. Enhancement of TiO2 behavior on photocatalytic oxidation of MO dye using TiO2/AC under visible irradiation and sunlight radiation. Sep Purif Technol 2012. [DOI: 10.1016/j.seppur.2012.06.018] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Su M, He C, Zhu L, Sun Z, Shan C, Zhang Q, Shu D, Qiu R, Xiong Y. Enhanced adsorption and photocatalytic activity of BiOI-MWCNT composites towards organic pollutants in aqueous solution. JOURNAL OF HAZARDOUS MATERIALS 2012; 229-230:72-82. [PMID: 22709852 DOI: 10.1016/j.jhazmat.2012.05.061] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2012] [Revised: 05/18/2012] [Accepted: 05/19/2012] [Indexed: 05/21/2023]
Abstract
BiOI-MWCNT composites, with high absorption and visible-light photocatalytic performance, were synthesized by a solvothermal process, in which ethylene glycol (EG) participated in the reaction. Synthesized BiOI-MWCNT composites were characterized by X-ray diffraction (XRD), diffuse reflectance spectra (DRS), scanning electronic microscopy (SEM), transmission electron microscopy (TEM), and electrochemical impedance spectroscopy (EIS). The results showed that the prepared BiOI-MWCNT composites exhibit strong adsorption ability with the increase of doped MWCNT amount. The efficiency of AOII degradation increased with the increase of MWCNT amount from 0.5 to 1.0% significantly. The photocatalytic degradation of AOII using BiOI-MWCNT composites under visible light (λ>400 nm) was almost completed within 180 min. BiOI-MWCNT composites maintained its degradation efficiency and durability after being reused for 5 batch runs. The high adsorption ability and degradation efficiency of BiOI-MWCNT for AOII was attributed to the sorption of doped MWCNT and the effective charge transfer from excited BiOI to MWCNTs, respectively. Moreover, organic compounds as intermediates of the degradation process were identified by LC/MS.
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Affiliation(s)
- Minhua Su
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China
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Photocatalytic degradation of azo dye using TiO2 supported on spherical activated carbon. KOREAN J CHEM ENG 2012. [DOI: 10.1007/s11814-012-0076-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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