Rational design of hierarchically-structured CuBi2O4 composites by deliberate manipulation of the nucleation and growth kinetics of CuBi2O4 for environmental applications
A versatile, eco-friendly synthesis scheme was developed to fabricate a series of hierarchically-structured CuBi2O4 composites for environmental applications. By simple tuning of the synthesis protocol (i.e. controlling the ethylene glycol to water ratio in the reaction matrix and employing differen...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
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2016
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| Online Access: | https://hdl.handle.net/10356/82732 http://hdl.handle.net/10220/40270 |
| _version_ | 1811694055345618944 |
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| author | Oh, Wen-Da Lua, Shun-Kuang Dong, Zhili Lim, Teik-Thye |
| author2 | School of Civil and Environmental Engineering |
| author_facet | School of Civil and Environmental Engineering Oh, Wen-Da Lua, Shun-Kuang Dong, Zhili Lim, Teik-Thye |
| author_sort | Oh, Wen-Da |
| collection | NTU |
| description | A versatile, eco-friendly synthesis scheme was developed to fabricate a series of hierarchically-structured CuBi2O4 composites for environmental applications. By simple tuning of the synthesis protocol (i.e. controlling the ethylene glycol to water ratio in the reaction matrix and employing different auxiliary metal precursors consisting of Cu2+, Co2+ or Fe3+ species), deposition of various metal oxides on CuBi2O4 was achieved. The proposed one-pot synthesis protocol utilizes the fast nucleation and controlled growth kinetics of CuBi2O4 to deliberately immobilize the desired metal oxides on the surface of the CuBi2O4. The manipulation of the diffusion rate, mass transfer kinetics and atomic mobility of the metal precursors by controlling the viscosity and dielectric properties of the reaction matrix lead to the formation of different CuBi2O4 composites with the desired properties. The synergistic coupling effect between the CuBi2O4 and deposited metal oxide contributed to the superior performance of the novel CuBi2O4 composites. The CuBi2O4 composites demonstrate excellent potential for various environmental applications such as being a catalyst for generating sulfate radicals from peroxymonosulfate for organic pollutant removal in water and being a disinfectant. The proposed green synthesis protocol is simple and offers flexibility for fabricating hierarchically-structured CuBi2O4 composites with enhanced properties for targeted applications. |
| first_indexed | 2024-10-01T07:01:29Z |
| format | Journal Article |
| id | ntu-10356/82732 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:01:29Z |
| publishDate | 2016 |
| record_format | dspace |
| spelling | ntu-10356/827322020-09-26T22:01:40Z Rational design of hierarchically-structured CuBi2O4 composites by deliberate manipulation of the nucleation and growth kinetics of CuBi2O4 for environmental applications Oh, Wen-Da Lua, Shun-Kuang Dong, Zhili Lim, Teik-Thye School of Civil and Environmental Engineering School of Materials Science & Engineering Nanyang Environment and Water Research Institute DRNTU::Engineering::Environmental engineering::Water treatment A versatile, eco-friendly synthesis scheme was developed to fabricate a series of hierarchically-structured CuBi2O4 composites for environmental applications. By simple tuning of the synthesis protocol (i.e. controlling the ethylene glycol to water ratio in the reaction matrix and employing different auxiliary metal precursors consisting of Cu2+, Co2+ or Fe3+ species), deposition of various metal oxides on CuBi2O4 was achieved. The proposed one-pot synthesis protocol utilizes the fast nucleation and controlled growth kinetics of CuBi2O4 to deliberately immobilize the desired metal oxides on the surface of the CuBi2O4. The manipulation of the diffusion rate, mass transfer kinetics and atomic mobility of the metal precursors by controlling the viscosity and dielectric properties of the reaction matrix lead to the formation of different CuBi2O4 composites with the desired properties. The synergistic coupling effect between the CuBi2O4 and deposited metal oxide contributed to the superior performance of the novel CuBi2O4 composites. The CuBi2O4 composites demonstrate excellent potential for various environmental applications such as being a catalyst for generating sulfate radicals from peroxymonosulfate for organic pollutant removal in water and being a disinfectant. The proposed green synthesis protocol is simple and offers flexibility for fabricating hierarchically-structured CuBi2O4 composites with enhanced properties for targeted applications. Accepted version 2016-03-14T06:27:08Z 2019-12-06T15:04:22Z 2016-03-14T06:27:08Z 2019-12-06T15:04:22Z 2015 Journal Article Oh, W.-D., Lua, S.-K., Dong, Z., & Lim, T.-T. (2016). Rational design of hierarchically-structured CuBi2O4 composites by deliberate manipulation of the nucleation and growth kinetics of CuBi2O4 for environmental applications. Nanoscale, 8(4), 2046-2054. 2040-3364 https://hdl.handle.net/10356/82732 http://hdl.handle.net/10220/40270 10.1039/C5NR06223C en Nanoscale © 2016 The Royal Society of Chemistry. This is the author created version of a work that has been peer reviewed and accepted for publication by Nanoscale, The Royal Society of Chemistry. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1039/C5NR06223C]. 10 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Environmental engineering::Water treatment Oh, Wen-Da Lua, Shun-Kuang Dong, Zhili Lim, Teik-Thye Rational design of hierarchically-structured CuBi2O4 composites by deliberate manipulation of the nucleation and growth kinetics of CuBi2O4 for environmental applications |
| title | Rational design of hierarchically-structured CuBi2O4 composites by deliberate manipulation of the nucleation and growth kinetics of CuBi2O4 for environmental applications |
| title_full | Rational design of hierarchically-structured CuBi2O4 composites by deliberate manipulation of the nucleation and growth kinetics of CuBi2O4 for environmental applications |
| title_fullStr | Rational design of hierarchically-structured CuBi2O4 composites by deliberate manipulation of the nucleation and growth kinetics of CuBi2O4 for environmental applications |
| title_full_unstemmed | Rational design of hierarchically-structured CuBi2O4 composites by deliberate manipulation of the nucleation and growth kinetics of CuBi2O4 for environmental applications |
| title_short | Rational design of hierarchically-structured CuBi2O4 composites by deliberate manipulation of the nucleation and growth kinetics of CuBi2O4 for environmental applications |
| title_sort | rational design of hierarchically structured cubi2o4 composites by deliberate manipulation of the nucleation and growth kinetics of cubi2o4 for environmental applications |
| topic | DRNTU::Engineering::Environmental engineering::Water treatment |
| url | https://hdl.handle.net/10356/82732 http://hdl.handle.net/10220/40270 |
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