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Singh AR, Dhumal PS, Bhakare MA, Lokhande KD, Bondarde MP, Some S. In-situ synthesis of metal oxide and polymer decorated activated carbon-based photocatalyst for organic pollutants degradation. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120380] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Sun L, Li C, Yan Y, Yu Y, Zhao H, Zhou Z, Wang F, Feng Y. Engineering DNA/Fe-N-C single-atom nanozymes interface for colorimetric biosensing of cancer cells. Anal Chim Acta 2021; 1180:338856. [PMID: 34538322 DOI: 10.1016/j.aca.2021.338856] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Revised: 07/11/2021] [Accepted: 07/13/2021] [Indexed: 10/20/2022]
Abstract
Single atom nanozymes (SAzymes) represent the state-of-the-art technology in nanomaterial-based catalysis, which have attracted attentions in catalysis, cancer treatment, disinfection and biosensing fields. However, numerous SAzymes suffered from low aqueous dispersion and without recognition capacity, which impeded their applications in bioanalysis. Herein, we engineered DNA onto SAzymes to obtain the DNA/SAzymes conjugates, which significantly improved the aqueous dispersion and recognition ability of SAzymes. We synthesized iron SAzymes (Fe-N-C SAzymes) as the catalytic nanomaterials, and investigated the interactions between Fe-N-C SAzymes and DNA. We compared A15, T15 and C15 adsorption of Fe-N-C SAzymes in HEPES containing 2 mM MgCl2. We found that 50 μg mL-1 Fe-N-C SAzymes produced nearly 100% A15 adsorption, 90% T15 adsorption and only 69% C15 adsorption, indicating that adenine and thymine had higher adsorption affinity on Fe-N-C SAzymes. More importantly, DNA modification did not affect the peroxidase-like activity of Fe-N-C SAzymes and the bioactivity of the adsorbed DNA. Taking the advantage of the diblock DNA with one DNA sequence (adenine) binding to Fe-N-C SAzymes and the other DNA sequence (i.e., aptamer) binding to cancer cells, we designed Apt/Fe-N-C SAzymes for colorimetric detection of cancer cells, which offered new insights for the use of SAzymes in biomedicine.
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Affiliation(s)
- Liping Sun
- School of Materials Science and Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Chao Li
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Yong Yan
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Yue Yu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Hao Zhao
- School of Materials Science and Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Zijue Zhou
- School of Materials Science and Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Feng Wang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China.
| | - Yi Feng
- School of Materials Science and Engineering, Hefei University of Technology, Hefei, 230009, China.
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Pradhan MR, Rath D, Sethi R, Nanda BB, Nanda B. α-MnO2 modified exfoliated porous g-C3N4 nanosheet (2D) for enhanced photocatalytic oxidation efficiency of aromatic alcohols. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2021.108717] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Khan WU, Qin L, Alam A, Zhou P, Peng Y, Wang Y. Fluorescent Carbon Dots an Effective Nano-Thermometer in Vitro Applications. ACS APPLIED BIO MATERIALS 2021; 4:5786-5796. [PMID: 35006753 DOI: 10.1021/acsabm.1c00528] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Fluorescent sensing of temperature in nanoscale regions has many advantages and applications in the biological field. Herein, blue emitting carbon dots (CDs) are designed and successfully developed using a one step hydrothermal method. As synthesized CDs exhibit temperature dependent photoluminescent (PL) intensity and PL decay lifetime over the physiological temperature ranging from room temperature (RT) to 70 °C. The PL intensity and PL decay lifetime of the obtained CDs correlate linearly to temperature (RT-70 °C) with correlation coefficient of 0.997 and 0.996, respectively. Additionally, dual mode thermal sensing (PL intensity/lifetime) make these CDs a promising optical nanothermometer over alternative semiconductors quantum dots and CD-based quantum dots. Moreover, the resultant aqueous CDs demonstrate excitation-independent blue emission, and the PL quantum yield (QY) is reached at 44.5%. The obtained CDs illustrate stable performance to high ionic environments and photobleaching even after keeping them for 2 h under continues UV irradiation. Furthermore, blue emitting CDs have low cytotoxicity for T-ca. cells and illuminate deep blue fluorescence under the excitation of 406 nm. As a result, high thermal sensitivity of these fluorescent CDs has potential to detect temperature in living cells in the range of 25-40 °C.
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Affiliation(s)
- Waheed Ullah Khan
- National and Local Joint Engineering Laboratory of Optical-Conversion Materials and Technology, School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, P.R. China
| | - Liying Qin
- School of Stomotology, Lanzhou University, Lanzhou 730000, P.R. China
| | - Abid Alam
- National and Local Joint Engineering Laboratory of Optical-Conversion Materials and Technology, School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, P.R. China
| | - Ping Zhou
- School of Stomotology, Lanzhou University, Lanzhou 730000, P.R. China
| | - Yong Peng
- Key Laboratory of Magnetism and Magnetic Materials of the Ministry of Education, School of Physical Science and Technology and Electron Microscope Center of Lanzhou University, Lanzhou 730000, P.R. China
| | - Yuhua Wang
- National and Local Joint Engineering Laboratory of Optical-Conversion Materials and Technology, School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, P.R. China
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Zhang L, Zhang R, Wang W, Han S, Xiao P. UV-enhanced nano-nickel ferrite-activated peroxymonosulfate for the degradation of chlortetracycline hydrochloride in aqueous solution. RSC Adv 2021; 11:20580-20590. [PMID: 35479907 PMCID: PMC9033989 DOI: 10.1039/d1ra02358f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 06/03/2021] [Indexed: 11/21/2022] Open
Abstract
In this study, nano-nickel ferrite (NiFe2O4) was successfully prepared by hydrothermal synthesis and applied to the oxidative removal of chlortetracycline hydrochloride (CTH) in the presence of ultraviolet radiation (UV) and peroxymonosulfate (PMS). Several characterization methods were used to reveal the morphology and surface properties of nano-NiFe2O4, including X-ray diffraction (XRD), scanning electron microscopy (SEM), and Fourier transform infrared absorption (FTIR) spectroscopy. The removal efficiency of CTH, the factors affecting the reaction process and the reaction mechanism of PMS activated by UV combined with nano-NiFe2O4 (UV + nano-NiFe2O4/PMS) in aqueous solution were systematically studied. The results showed that the UV + nano-NiFe2O4/PMS system led to a higher removal efficiency of CTH than other parallel systems. The results also showed that the CTH removal efficiency was enhanced under optimal conditions ([nano-NiFe2O4] = 1 g L-1, [PMS] = 1 g L-1, [UV wavelength] = 254 nm and [pH] = 11) and that a removal efficiency of 96.98% could be achieved after 60 min. In addition, the influence of the PMS concentration, CTH concentration, dosage of added nano-NiFe2O4 and pH on the PMS activation efficiency and CTH oxidative degradation effect was studied. Inorganic anions such as Cl-, HCO3 -, CO3 2- and NO3 - increased the removal efficiency of CTH by 21.29%, 27.17%, 25.32% and 5.96% respectively, while H2PO4 - inhibited CTH removal, and the removal efficiency of CTH decreased 6.08% after 60 min. Free radical identification tests detected SO4 -˙, OH˙ and 1O2 and showed that these species participated in the degradation reaction of CTH. The results of LC-MS and TOC analysis showed that CTH was degraded in the UV + nano-NiFe2O4/PMS system through hydroxylation, demethylation, deamination, and dehydration reaction and finally mineralized into CO2. These findings confirmed that nano-NiFe2O4 is a green and efficient heterogeneous catalyst for activation of PMS and demonstrates potential applicability in the treatment of antibiotic wastewater.
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Affiliation(s)
- Lingxing Zhang
- College of Forestry, Northeast Forestry University Harbin 150040 China
| | - Rui Zhang
- College of Forestry, Northeast Forestry University Harbin 150040 China
| | - Wenna Wang
- College of Forestry, Northeast Forestry University Harbin 150040 China
| | - Shuang Han
- College of Forestry, Northeast Forestry University Harbin 150040 China
| | - Pengfei Xiao
- College of Forestry, Northeast Forestry University Harbin 150040 China
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Selective oxidation of aromatic alcohols in the presence of C3N4 photocatalysts derived from the polycondensation of melamine, cyanuric and barbituric acids. RESEARCH ON CHEMICAL INTERMEDIATES 2021. [DOI: 10.1007/s11164-020-04330-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
AbstractA set of C3N4 samples has been prepared by using melamine, cyanuric acid and barbituric acid as the precursors. The materials were subjected both to physical and chemical characterization and were used as photocatalysts for the selective oxidation of aromatic alcohols in water suspension under UV and visible irradiation. The photoactivity of the materials versus the partial oxidation of four substituted benzyl alcohols was investigated. The type and position of the substituents in the aromatic molecule influenced conversion and selectivity to the corresponding aldehyde. The presence of barbituric and cyanuric acids in the preparation method has changed the graphitic-C3N4 structure, and therefore both the characteristics of the material and the ability of light to activate the surface of the photocatalyst. The most active material prepared in the presence of melamine and cyanuric acid showed a remarkable selectivity towards the aldehyde even under visible irradiation.
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Rinaldi FG, Arutanti O, Arif AF, Hirano T, Ogi T, Okuyama K. Correlations between Reduction Degree and Catalytic Properties of WO x Nanoparticles. ACS OMEGA 2018; 3:8963-8970. [PMID: 31459029 PMCID: PMC6644510 DOI: 10.1021/acsomega.8b01110] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Accepted: 08/03/2018] [Indexed: 05/29/2023]
Abstract
Degrading organic dyes via catalytic processes for waste water purification is an important research topic from the environmental conservation point of view. Herein, the catalytic performance of tungsten blue oxide (WO x ) nanoparticles was investigated systematically by varying the reduction temperature. The optimum reduction temperature to obtain the most stable WO x phase was obtained when plasma-synthesized WO3 nanoparticles were thermally reduced at 425 °C. The as-synthesized nanoparticles had an average diameter of 10 nm and a calculated band gap of 2.37 eV, which is lower than that of the WO3 nanoparticles (2.61 eV). The WO x nanoparticles exhibited an excellent performance in degrading rhodamine B under dark conditions and visible light irradiation, with a reaction rate constant 93 times higher than that of the WO3 nanoparticles.
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Affiliation(s)
- Febrigia Ghana Rinaldi
- Department of Chemical
Engineering, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi Hiroshima 739-8527, Japan
| | - Osi Arutanti
- Research
Center for Chemistry, Indonesian Institute
of Sciences, Kawasan Puspitek, Serpong, Tangerang 15314, Indonesia
| | - Aditya Farhan Arif
- Department of Chemical
Engineering, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi Hiroshima 739-8527, Japan
| | - Tomoyuki Hirano
- Department of Chemical
Engineering, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi Hiroshima 739-8527, Japan
| | - Takashi Ogi
- Department of Chemical
Engineering, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi Hiroshima 739-8527, Japan
| | - Kikuo Okuyama
- Department of Chemical
Engineering, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi Hiroshima 739-8527, Japan
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Xu Y, Zeng LZ, Fu ZC, Li C, Yang Z, Chen Y, Fu WF. Photocatalytic oxidation of arylalcohols to aromatic aldehydes promoted by hydroxyl radicals over a CoP/CdS photocatalyst in water with hydrogen evolution. Catal Sci Technol 2018. [DOI: 10.1039/c8cy00138c] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Hydroxyl free radicals generated by visible-light-catalyzed water splitting over CoP/CdS drive the oxidation of arylalcohols with hydrogen evolution.
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Affiliation(s)
- Yong Xu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and HKU-CAS Joint Laboratory on New Materials
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- P.R. China
| | - Ling-Zhen Zeng
- College of Chemistry and Chemical Engineering
- Yunnan Normal University
- Kunming 650092
- P.R. China
| | - Zi-Cheng Fu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and HKU-CAS Joint Laboratory on New Materials
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- P.R. China
| | - Cong Li
- College of Chemistry and Chemical Engineering
- Yunnan Normal University
- Kunming 650092
- P.R. China
| | - Zhi Yang
- College of Chemistry and Chemical Engineering
- Yunnan Normal University
- Kunming 650092
- P.R. China
| | - Yong Chen
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and HKU-CAS Joint Laboratory on New Materials
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- P.R. China
| | - Wen-Fu Fu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and HKU-CAS Joint Laboratory on New Materials
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- P.R. China
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Inorganic semiconductors-graphene composites in photo(electro)catalysis: Synthetic strategies, interaction mechanisms and applications. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2017. [DOI: 10.1016/j.jphotochemrev.2017.06.003] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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