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Bai L, Liu L, Pang J, Chen Z, Wei M, Wu Y, Dong G, Zhang J, Shan D, Wang B. N,P-codoped carbon quantum dots-decorated TiO 2 nanowires as nanosized heterojunction photocatalyst with improved photocatalytic performance for methyl blue degradation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:9932-9943. [PMID: 34510339 DOI: 10.1007/s11356-021-16295-y] [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: 01/05/2021] [Accepted: 08/29/2021] [Indexed: 06/13/2023]
Abstract
N,P-doped carbon quantum dots (N,P-CQDs) are deemed as a promising candidate to environmentally friendly materials owing to the inexpensive, biocompatible nature. TiO2 nanowire is a prospective photocatalyst because of its efficient migration of photoexcited carriers in wastewater treatment. However, the N,P-CQDs-decorated TiO2 nanowire (N,P-CQDs/NW-TiO2) photocatalysts have been rarely reported. In this study, we build N,P-CQDs on the surface of TiO2 nanowires via a simple deposition process. Our investigations demonstrate that N,P-CQDs/NW-TiO2 has a great photocatalytic degradation for methyl blue (MB) under irradiation. The degradation rate of can reach 93.6% within 120 min under proper conditions. The excellent degradation performance of N,P-CQDs/NW-TiO2 is ascribed to the mesoporous structure and high separation rate of photoexcited carriers. In addition, the N,P-CQDs/NW-TiO2 have outstanding recycled photocatalytic capability. After being recycled four times, the N,P-CQDs/NW-TiO2 still maintain 59.9% photocatalytic activity. The fabricated nanosized photocatalyst can be widely utilized in the field of photocatalysis for wastewater treatment.
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Affiliation(s)
- Liming Bai
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, 161000, Heilongjiang Province, China
| | - Lumin Liu
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin, 300070, China
- Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, 300070, China
| | - Jinghui Pang
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, 161000, Heilongjiang Province, China
| | - Zhao Chen
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin, 300070, China
- Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, 300070, China
| | - Minghui Wei
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, 161000, Heilongjiang Province, China
| | - Yang Wu
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin, 300070, China
| | - Guohua Dong
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, 161000, Heilongjiang Province, China
| | - Jianwei Zhang
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin, 300070, China
- Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, 300070, China
| | - Dan Shan
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin, 300070, China
- Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, 300070, China
| | - Baiqi Wang
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin, 300070, China.
- Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, 300070, China.
- National Demonstration Center for Experimental Preventive Medicine Education, Tianjin Medical University, Tianjin, 300070, China.
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Investigation of UV Dye-Sensitized Solar Cells Based on Water Electrolyte: A New Insight for Wavelength-Selective Greenhouse. CRYSTALS 2022. [DOI: 10.3390/cryst12010098] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The optimization of the photoactive electrode based on TiO2 with a complex architecture for UV dyes along with water-based electrolyte has successfully allowed us (i) to obtain a photovoltaic efficiency of the dye-sensitized solar cell with 1.45 times higher than the best efficiency reported for synthetic dye and 3 times for curcumin dye so far; (ii) transparency on the entire Photosynthetic Active Radiation domain; (iii) preserving high efficiency for lighting 1 sun (summer) and shading, especially for 60 mW/cm2, which represents the maximum illumination in the rest of the seasons. Our water-based dye-sensitized solar cells loaded with synthetic and natural UV dyes have revealed that the implementation of a dye-sensitized solar cell in autonomous greenhouses is a viable and inexpensive concept.
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Yurdakal S, Çetinkaya S, Augugliaro V, Palmisano G, Sá J, Lewin E, Garlisi C. Selective photocatalytic oxidation of 3-pyridinemethanol on platinized acid/base modified TiO 2. Catal Sci Technol 2021. [DOI: 10.1039/d1cy00569c] [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
TEM micrographs of selected platinized samples.
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Affiliation(s)
- Sedat Yurdakal
- Kimya Bölümü
- Fen-Edebiyat Fakültesi
- Afyon Kocatepe Üniversitesi
- Ahmet Necdet Sezer Kampüsü
- 03200 Afyonkarahisar
| | - Sıdıka Çetinkaya
- Kimya Bölümü
- Fen-Edebiyat Fakültesi
- Afyon Kocatepe Üniversitesi
- Ahmet Necdet Sezer Kampüsü
- 03200 Afyonkarahisar
| | - Vincenzo Augugliaro
- “Schiavello-Grillone” Photocatalysis Group
- Dipartimento di Energia
- Ingegneria dell'Informazione e Modelli Matematici (DEIM)
- Università degli Studi di Palermo
- 90128 Palermo
| | - Giovanni Palmisano
- Department of Chemical Engineering
- Khalifa University of Science and Technology
- Abu Dhabi
- United Arab Emirates
- Research and Innovation on CO2 and H2 (RICH) Center
| | - Jacinto Sá
- Department of Chemistry - Ångström Laboratory
- Physical Chemistry
- Ångströmlaboratoriet
- 751 20 UPPSALA
- Sweden
| | - Erik Lewin
- Department of Chemistry - Ångström Laboratory
- Inorganic Chemistry
- Ångströmlaboratoriet
- 751 20 UPPSALA
- Sweden
| | - Corrado Garlisi
- Department of Chemical Engineering
- Khalifa University of Science and Technology
- Abu Dhabi
- United Arab Emirates
- Research and Innovation on CO2 and H2 (RICH) Center
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