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Paengjun NK, Polshettiwar V, Ogawa M. Designed Nanoarchitectures of a BiOBr/BiOI Nanosheet Heterojunction Anchored on Dendritic Fibrous Nanosilica as Visible-Light Responsive Photocatalysts. Inorg Chem 2024; 63:11870-11883. [PMID: 38865140 DOI: 10.1021/acs.inorgchem.4c01756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2024]
Abstract
Heterojunctions, particularly those involving BiOBr/BiOI, have attracted significant attention in the field of photocatalysis due to their remarkable properties. In this study, a unique architecture of BiOBr/BiOI was designed to facilitate the rapid transfer of electrons and holes, effectively mitigating the recombination of electron-hole pairs. Accordingly, the BiOBr/BiOI nanosheet heterojunction was anchored on dendritic fibrous nanosilica (DFNS) by the immobilization of Bi2O3 nanodots in DFNS and the subsequent reaction with HBr and then HI vapors at room temperature. The 4 nm-Bi2O3 nanodots acted as a sacrificial template to form BiOX nanosheets by reaction with HX vapors (X = Br, I). The BiOBr/BiOI nanosheet heterojunction with the lateral size remained in the range of 90 to 110 nm and a thickness of 15 nm formed on DFNS, where the BiOBr:BiOI ratio in the product was controlled by the exposure time to HX vapors. The reaction sequence (HBr → HI vapors) was a key for the formation of BiOBr/BiOI nanosheet heterojunction with controlled composition. When the reaction of Bi2O3 nanodots with HI vapor was performed in the reverse sequence (HI→ HBr), the substitution of I- with Br- occurred to form BiOBr sheets on DFNS. The BiOBr/BiOI nanosheet heterojunction anchored on DFNS was used as a visible-light-driven photocatalyst for the decomposition of benzene in water under solar light, and its activity was superior to that of single BiOX nanosheets on DFNS.
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Affiliation(s)
- Navarut Kan Paengjun
- School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), 555 Moo 1, Pa Yup Nai, Wang Chan, Rayong 21210, Thailand
| | - Vivek Polshettiwar
- Division of Chemical Sciences, Tata Institute of Fundamental Research (TIFR), Homi Bhabha Road, Mumbai 400005, India
| | - Makoto Ogawa
- School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), 555 Moo 1, Pa Yup Nai, Wang Chan, Rayong 21210, Thailand
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Tanimu G, Aitani A, Asaoka S, Alasiri H. Oxidative dehydrogenation of n-butane to butadiene catalyzed by new mesoporous mixed oxides NiO-(beta-Bi2O3)-Bi2SiO5/SBA-15 system. MOLECULAR CATALYSIS 2020. [DOI: 10.1016/j.mcat.2020.110893] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Shinde NM, Xia QX, Yun JM, Singh S, Mane RS, Kim KH. A binder-free wet chemical synthesis approach to decorate nanoflowers of bismuth oxide on Ni-foam for fabricating laboratory scale potential pencil-type asymmetric supercapacitor device. Dalton Trans 2017; 46:6601-6611. [DOI: 10.1039/c7dt00953d] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The synthesis and asymmetric supercapacitor application of a bismuth oxide (Bi2O3) electrode consisting of arranged nano-platelets for evolving a flower-type surface appearance on nickel-foam (Bi2O3–Ni–F) are described.
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Affiliation(s)
- N. M. Shinde
- Department of Materials Science and Engineering
- Pusan National University
- Busan 609-735
- Republic of Korea
- Global Frontier R&D Center for Hybrid Interface Materials
| | - Qi Xun Xia
- Department of Materials Science and Engineering
- Pusan National University
- Busan 609-735
- Republic of Korea
- Global Frontier R&D Center for Hybrid Interface Materials
| | - Je Moon Yun
- Department of Materials Science and Engineering
- Pusan National University
- Busan 609-735
- Republic of Korea
- Global Frontier R&D Center for Hybrid Interface Materials
| | - Saurabh Singh
- Department of Materials Science and Engineering
- Pusan National University
- Busan 609-735
- Republic of Korea
- Global Frontier R&D Center for Hybrid Interface Materials
| | - Rajaram S. Mane
- Centre for Nanomaterials & Energy Devices
- School of Physical Sciences
- SRTM University
- Nanded
- India
| | - Kwang-Ho Kim
- Department of Materials Science and Engineering
- Pusan National University
- Busan 609-735
- Republic of Korea
- Global Frontier R&D Center for Hybrid Interface Materials
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Rivera EJ, Tran LA, Hernández-Rivera M, Yoon D, Mikos AG, Rusakova IA, Cheong BY, Cabreira-Hansen MDG, Willerson JT, Perin EC, Wilson LJ. Bismuth@US-tubes as a Potential Contrast Agent for X-ray Imaging Applications. J Mater Chem B 2013; 1:10.1039/C3TB20742K. [PMID: 24288589 PMCID: PMC3840030 DOI: 10.1039/c3tb20742k] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
The encapsulation of bismuth as BiOCl/Bi2O3 within ultra-short (ca. 50 nm) single-walled carbon nanocapsules (US-tubes) has been achieved. The Bi@US-tubes have been characterized by high-resolution transmission electron microscopy (HR-TEM), energy-dispersive X-ray spectroscopy (EDS), thermogravimetric analysis (TGA), X-ray photoelectron spectroscopy (XPS), and Raman spectroscopy. Bi@US-tubes have been used for intracellular labeling of pig bone marrow-derived mesenchymal stem cells (MSCs) to show high X-ray contrast in computed tomography (CT) cellular imaging for the first time. The relatively high contrast is achieved with low bismuth loading (2.66% by weight) within the US-tubes and without compromising cell viability. X-ray CT imaging of Bi@US-tubes-labeled MSCs showed a nearly two-fold increase in contrast enhancement when compared to unlabeled MSCs in a 100 kV CT clinical scanner. The CT signal enhancement from the Bi@US-tubes is 500 times greater than polymer-coated Bi2S3 nanoparticles and several-fold that of any clinical iodinated contrast agent (CA) at the same concentration. Our findings suggest that the Bi@US-tubes can be used as a potential new class of X-ray CT agent for stem cell labeling and possibly in vivo tracking.
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Affiliation(s)
- Eladio J. Rivera
- Department of Chemistry, Smalley Institute for Nanoscale Science and Technology MS-60, P. O. Box 1892, Rice University, Houston TX 77251-1892, USA
| | - Lesa A. Tran
- Department of Chemistry, Smalley Institute for Nanoscale Science and Technology MS-60, P. O. Box 1892, Rice University, Houston TX 77251-1892, USA
| | - Mayra Hernández-Rivera
- Department of Chemistry, Smalley Institute for Nanoscale Science and Technology MS-60, P. O. Box 1892, Rice University, Houston TX 77251-1892, USA
| | - Diana Yoon
- Department of Bioengineering, MS-142, P. O. Box 1892, Rice University, Houston TX 77251-1892, USA
| | - Antonios G. Mikos
- Department of Bioengineering, MS-142, P. O. Box 1892, Rice University, Houston TX 77251-1892, USA
| | - Irene A. Rusakova
- Texas Center for Superconductivity at the University of Houston, University of Houston, Houston, TX 77204-5002, USA
| | - Benjamin Y. Cheong
- Department of Radiology, St. Luke’s Episcopal Hospital, 6720 Bertner Avenue, MC 2-270, Houston, TX 77030-2697, USA
| | - Maria da Graça Cabreira-Hansen
- Stem Cell Center, Texas Heart Institute at St. Luke’s Episcopal Hospital, MC 2-255, P. O. Box 20345, Houston, TX 77225-0345, USA
| | - James T. Willerson
- Stem Cell Center, Texas Heart Institute at St. Luke’s Episcopal Hospital, MC 2-255, P. O. Box 20345, Houston, TX 77225-0345, USA
| | - Emerson C. Perin
- Stem Cell Center, Texas Heart Institute at St. Luke’s Episcopal Hospital, MC 2-255, P. O. Box 20345, Houston, TX 77225-0345, USA
| | - Lon J. Wilson
- Department of Chemistry, Smalley Institute for Nanoscale Science and Technology MS-60, P. O. Box 1892, Rice University, Houston TX 77251-1892, USA
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