1
|
Derikvandi H, Vosough M, Nezamzadeh-Ejhieh A. A comprehensive study on the enhanced photocatlytic activity of a double-shell mesoporous plasmonic Cu @Cu 2O/SiO 2 as a visible-light driven nanophotocatalyst. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:27582-27597. [PMID: 32394251 DOI: 10.1007/s11356-020-08817-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Accepted: 04/07/2020] [Indexed: 06/11/2023]
Abstract
A novel sunlight-activated double-shell Cu@Cu2O/SiO2 (m-pCu@Cu2O/SiO2) photocatalyst is presented via a combined precipitation and sol-gel methods with a mesoporous silica outer shell. After applying several characterization techniques on the m-pCu@Cu2O/SiO2, it was tested in the photodegradation of ciprofloxacin (CIP). The experimental results demonstrated a higher photocatalytic activity of the double-shell m-pCu@Cu2O/SiO2 nanophotocatalyst than the core-shell pCu@Cu2O nanophotocatalyst under the sunlight irradiation. When the content of pCu@Cu2O was 30 wt.%, it showed the highest activity. The Cu nanoparticles exhibited the surface plasmonic resonance (SPR) effect which increased the light absorption in the visible region of light. It also caused the rapid separation of the photoexcited e-/h+ pairs. Furthermore, the mesoporous structure of outer shell silica favors the transfer of reactants, resulting in the improved photoactivity performance for the supported pCu@Cu2O catalyst. Central composite design (CCD) based on RSM (response surface methodology) approach was used to optimize four of the most important experimental variables. The photodegraded intermediates were identified by HPLC-Mass.
Collapse
Affiliation(s)
- Hadis Derikvandi
- Department of Clean Technologies, Chemistry and Chemical Engineering Research Center of Iran, P.O. Box 14335-186, Tehran, Iran
| | - Maryam Vosough
- Department of Clean Technologies, Chemistry and Chemical Engineering Research Center of Iran, P.O. Box 14335-186, Tehran, Iran.
| | - Alireza Nezamzadeh-Ejhieh
- Department of Chemistry, Shahreza Branch, Islamic Azad University, P.O. Box 311-86145, Shahreza, Isfahan, Iran.
| |
Collapse
|
2
|
Zhang B, Yang F, Ruan X, Yang W, Liu B, Li Y. Construction of a Graphene-Wrapped Pd/SiO 2@TiO 2 Core–Shell Sphere for Enhanced Photoassisted Electrocatalytic Methanol Oxidation Property. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c01494] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Bing Zhang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
| | - Fan Yang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
| | - Xuejia Ruan
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
| | - Wang Yang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
| | - Bei Liu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
| | - Yongfeng Li
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
| |
Collapse
|
3
|
Zou H, Wang L, Tao H, Liu Y, Chang M, Yao S. Preparation of SiO 2@TiO 2:Eu 3+@TiO 2 core double-shell microspheres for photodegradation of polyacrylamide. RSC Adv 2019; 9:30790-30796. [PMID: 35529367 PMCID: PMC9072158 DOI: 10.1039/c9ra06187h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Accepted: 09/20/2019] [Indexed: 01/23/2023] Open
Abstract
Recently, polyacrylamide (PAM) has been widely used in polymer flooding technology to enhance oil recovery and oil production. However, the difficulty in removing hydrolysed PAM (HPAM) from wastewater still seriously blocks the further application of polymer flooding in the oilfields. Herein, we demonstrate the preparation of SiO2@TiO2:Eu3+@TiO2 core double-shell microspheres (STT) through a two-step solvothermal and sol–gel coating strategy. The as-prepared STT exhibits an ideal photocatalytic activity for the photodegradation of HPAM. More importantly, by using STT as the model, the correlation between fluorescence intensity and photocatalytic activity of the photocatalysts is investigated. The results suggest their oppositional relationship. Since many kinds of photocatalysts are utilized in the degradation of organic pollutants, it is believed that our work will not only promote the development of photocatalysis in the field of oil extraction, but also offer a convenient method for evaluating the photocatalytic activity of the photocatalysts. SiO2@TiO2:Eu3+@TiO2 core double-shell microspheres with an ideal photocatalytic activity are designed and prepared for photodegradation of HPAM.![]()
Collapse
Affiliation(s)
- Haoyang Zou
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University Changchun 130012 P. R. China
| | - Lan Wang
- Research Institute of Drilling and Production Engineering Technology, CNPC Chuanqing Drilling Engineering Co., Ltd Guanghan 618300 P. R. China
| | - Huaizhi Tao
- Research Institute of Drilling and Production Engineering Technology, CNPC Chuanqing Drilling Engineering Co., Ltd Guanghan 618300 P. R. China
| | - Yi Liu
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University Changchun 130012 P. R. China
| | - Meiqi Chang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences Shanghai 200050 P. R. China
| | - Shiyu Yao
- College of Physics, Jilin University Changchun 130012 P. R. China
| |
Collapse
|
4
|
Sboui M, Nsib MF, Rayes A, Swaminathan M, Houas A. TiO 2-PANI/Cork composite: A new floating photocatalyst for the treatment of organic pollutants under sunlight irradiation. J Environ Sci (China) 2017; 60:3-13. [PMID: 29031443 DOI: 10.1016/j.jes.2016.11.024] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Revised: 10/31/2016] [Accepted: 12/06/2016] [Indexed: 05/22/2023]
Abstract
A novel photocatalyst based on TiO2-PANI composite supported on small pieces of cork has been reported. It was prepared by simple impregnation method of the polyaniline (PANI)-modified TiO2 on cork. The TiO2-PANI/Cork catalyst shows the unique feature of floating on the water surface. The as-synthesized catalyst was characterized by X-ray diffraction (XRD), scanning electron micrograph (SEM), transmission electron microscopy (TEM), thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FT-IR), UV-vis diffuse reflectance spectra (UV-vis DRS) and the Brunauer-Emmett-Teller (BET) surface area analysis. Characterization suggested the formation of anatase highly dispersed on the cork surface. The prepared floating photocatalyst showed high efficiency for the degradation of methyl orange dye and other organic pollutants under solar irradiation and constrained conditions, i.e., no-stirring and no-oxygenation. The TiO2-PANI/Cork floating photocatalyst can be reused for at least four consecutive times without significant decrease of the degradation efficiency.
Collapse
Affiliation(s)
- Mouheb Sboui
- Laboratory CI-Sfax, Faculty of Science, University of Sfax, Tunisia; URCMEP (UR11ES85), Faculty of Sciences, University of Gabès, 6029 Gabès, Tunisia.
| | - Mohamed Faouzi Nsib
- URCMEP (UR11ES85), Faculty of Sciences, University of Gabès, 6029 Gabès, Tunisia; National School of Engineers (ENIG), University of Gabès, 6029 Gabès, Tunisia; High School of Sciences and Technology of Hammam Sousse, University of Sousse, Tunisia.
| | - Ali Rayes
- URCMEP (UR11ES85), Faculty of Sciences, University of Gabès, 6029 Gabès, Tunisia; National School of Engineers (ENIG), University of Gabès, 6029 Gabès, Tunisia
| | - Meenakshisundaram Swaminathan
- Nanomaterials Laboratory, International Research Centre, Kalasalingam University, Krishnankoil 626126, Tamil Nadu, India
| | - Ammar Houas
- URCMEP (UR11ES85), Faculty of Sciences, University of Gabès, 6029 Gabès, Tunisia; Al Imam Mohammad Ibn Saud Islamic University (IMSIU), College of Sciences, Department of Chemistry, Riyadh 11623, Saudi Arabia
| |
Collapse
|
5
|
Yang Z, Xu Y, Yang S. Fabrication, characterization, and photocatalytic performance of TiO2 hybridized with SiO2. RUSS J APPL CHEM+ 2017. [DOI: 10.1134/s107042721612017x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
6
|
Sboui M, Nsib MF, Rayes A, Ochiai T, Houas A. Application of solar light for photocatalytic degradation of Congo red by a floating salicylic acid-modified TiO2/palm trunk photocatalyst. CR CHIM 2017. [DOI: 10.1016/j.crci.2015.12.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
7
|
Cao P, Zhou G, Ren Y, Xiao H. Fabrication and photoactivity of short rod-shaped mesoporous SiO2@TiO2 composites with TiO2 shell. RSC Adv 2016. [DOI: 10.1039/c5ra18418e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Short rod-shaped mesoporous SiO2@TiO2 composites containing TiO2 shell were prepared using short rod-shaped mesoporous SiO2–PGMA–PEGMA as template and TBT as titanium source.
Collapse
Affiliation(s)
- Pei Cao
- Key Laboratory of Fine Chemicals in Universities of Shandong
- School of Chemistry and Pharmaceutical Engineering
- Qilu University of Technology
- Jinan 250353
- People's Republic of China
| | - Guowei Zhou
- Key Laboratory of Fine Chemicals in Universities of Shandong
- School of Chemistry and Pharmaceutical Engineering
- Qilu University of Technology
- Jinan 250353
- People's Republic of China
| | - Yixian Ren
- Key Laboratory of Fine Chemicals in Universities of Shandong
- School of Chemistry and Pharmaceutical Engineering
- Qilu University of Technology
- Jinan 250353
- People's Republic of China
| | - Hong Xiao
- Key Laboratory of Fine Chemicals in Universities of Shandong
- School of Chemistry and Pharmaceutical Engineering
- Qilu University of Technology
- Jinan 250353
- People's Republic of China
| |
Collapse
|
8
|
Mao Y, Jiang W, Xuan S, Fang Q, Leung KCF, Ong BS, Wang S, Gong X. Rod-like β-FeOOH@poly(dopamine)–Au–poly(dopamine) nanocatalysts with improved recyclable activities. Dalton Trans 2015; 44:9538-44. [DOI: 10.1039/c5dt00913h] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel rod-like β-FeOOH@poly(dopamine)–Au–poly(dopamine) core–shell nanocomposite with significantly improved recyclability is developed for catalysis.
Collapse
Affiliation(s)
- Ya Mao
- Department of Chemistry
- Collaborative Innovation Center of Suzhou Nano Science and Technology
- University of Science and Technology of China (USTC)
- Hefei 230026
- PR China
| | - Wanquan Jiang
- Department of Chemistry
- Collaborative Innovation Center of Suzhou Nano Science and Technology
- University of Science and Technology of China (USTC)
- Hefei 230026
- PR China
| | - Shouhu Xuan
- CAS Key Laboratory of Mechanical Behavior and Design of Materials
- Department of Modern Mechanics
- USTC
- Hefei 230027
- PR China
| | - Qunling Fang
- School of Medical Engineering
- Hefei University of Technology
- Hefei 230009
- PR China
| | - Ken Cham-Fai Leung
- Department of Chemistry and Institute of Creativity
- Hong Kong Baptist University
- Kowloon
- China
| | - Beng S. Ong
- Department of Chemistry and Institute of Creativity
- Hong Kong Baptist University
- Kowloon
- China
| | - Sheng Wang
- Department of Chemistry
- Collaborative Innovation Center of Suzhou Nano Science and Technology
- University of Science and Technology of China (USTC)
- Hefei 230026
- PR China
| | - Xinglong Gong
- CAS Key Laboratory of Mechanical Behavior and Design of Materials
- Department of Modern Mechanics
- USTC
- Hefei 230027
- PR China
| |
Collapse
|
9
|
Zhan S, Zhu D, Ren G, Shen Z, Qiu M, Yang S, Yu H, Li Y. Coaxial-electrospun magnetic core-shell Fe@TiSi nanofibers for the rapid purification of typical dye wastewater. ACS APPLIED MATERIALS & INTERFACES 2014; 6:16841-16850. [PMID: 25226354 DOI: 10.1021/am505751z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Magnetic mesoporous γ-Fe2O3@Ti0.9Si0.1O2 (abbreviated as Fe@TiSi) core-shell nanofibers were prepared using sol-gel chemistry combined with coaxial-electrospinning technology by adjusting the inner and outer feed ratios. The properties of these novel core-shell nanofibers were characterized by SEM, HRTEM, XRD, FTIR, BET, XPS, and UV-vis spectra. To evaluate the chemical properties of the nanofibers for cleaning typical organic wastewater, methylene blue (MB) was used as a target organic pollutant and was cleaned under irradiation with sunlight and visible light. The Fe@TiSi hierarchical nanofibers composed of a 1:10 feed ratio displayed a mesoporous structure and showed the highest photocatalytic activity for the degradation of MB in water. Furthermore, 86.8% and 71.1% of the MB, which was added at an original concentration of 1 mg/L, was removed after 60 min of irradiation with sunlight and visible light in the presence of Fe@TiSi at a concentration of 0.2 g/L, and 100% of the MB was removed after 75 min. It is very important that the magnetic nanofibers could be recycled rapidly with an outside magnet, and the actual water treatment process was easy to achieve. Moreover, the mechanism of MB degradation by Fe@TiSi core-shell nanofibers was proposed.
Collapse
Affiliation(s)
- Sihui Zhan
- College of Environmental Science and Engineering, Key Laboratory of Environmental Pollution Process and Environmental Criteria, Nankai University , Tianjin 300071, P. R. China
| | | | | | | | | | | | | | | |
Collapse
|
10
|
Huang CC, Parasuraman PS, Tsai HC, Jhu JJ, Imae T. Synthesis and characterization of porphyrin–TiO2 core–shell nanoparticles as visible light photocatalyst. RSC Adv 2014. [DOI: 10.1039/c3ra45492d] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|