Glycine–Nitrate Combustion Synthesis of Cu-Based Nanoparticles for NP9EO Degradation Applications
Copper-based nanoparticles were synthesized using the glycine–nitrate process (GNP) by using copper nitrate trihydrate [Cu(NO<sub>3</sub>)<sub>2</sub>·3H<sub>2</sub>O] as the main starting material, and glycine [C<sub>2</sub>H<sub>5</sub>NO...
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MDPI AG
2020-09-01
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| Online Access: | https://www.mdpi.com/2073-4344/10/9/1061 |
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| author | Hsu-Hui Cheng Shiao-Shing Chen Hui-Ming Liu Liang-Wei Jang Shu-Yuan Chang |
| author_facet | Hsu-Hui Cheng Shiao-Shing Chen Hui-Ming Liu Liang-Wei Jang Shu-Yuan Chang |
| author_sort | Hsu-Hui Cheng |
| collection | DOAJ |
| description | Copper-based nanoparticles were synthesized using the glycine–nitrate process (GNP) by using copper nitrate trihydrate [Cu(NO<sub>3</sub>)<sub>2</sub>·3H<sub>2</sub>O] as the main starting material, and glycine [C<sub>2</sub>H<sub>5</sub>NO<sub>2</sub>] as the complexing and incendiary agent. The as-prepared powders were characterized through X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET), X-ray photoelectron spectroscopy (XPS), and scanning electron microscopy analysis. Using Cu(NO<sub>3</sub>)<sub>2</sub>·3H<sub>2</sub>O as the oxidizer (N) and glycine as fuel (G), we obtained CuO, mixed-valence copper oxides (CuO + Cu<sub>2</sub>O, G/N = 0.3–0.5), and metallic Cu (G/N = 0.7). The XRD and BET results indicated that increasing the glycine concentration (G/N = 0.7) and reducing the particle surface area increased the yield of metallic Cu. The effects of varying reaction parameters, such as catalyst activity, catalyst dosage, and H<sub>2</sub>O<sub>2</sub> concentration on nonylphenol-9-polyethoxylate (NP9EO) degradation, were assessed. With a copper-based catalyst in a heterogeneous system, the NP9EO and total organic carbon removal efficiencies were 83.1% and 70.6%, respectively, under optimum operating conditions (pH, 6.0; catalyst dosage, 0.3 g/L; H<sub>2</sub>O<sub>2</sub> concentration, 0.05 mM). The results suggest that the removal efficiency increased with an increase in H<sub>2</sub>O<sub>2</sub> concentration but decreased when the H<sub>2</sub>O<sub>2</sub> concentration exceeded 0.05 mM. Furthermore, the trend of photocatalytic activity was as follows: G/N = 0.5 > G/N = 0.7 > G/N = 0.3. The G/N = 0.5 catalysts showed the highest photocatalytic activity and resulted in 94.6% NP9EO degradation in 600 min. |
| first_indexed | 2024-03-10T16:19:42Z |
| format | Article |
| id | doaj.art-8d40d628d76545fe91da5e8f7fa872db |
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| language | English |
| last_indexed | 2024-03-10T16:19:42Z |
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| spelling | doaj.art-8d40d628d76545fe91da5e8f7fa872db2023-11-20T13:45:32ZengMDPI AGCatalysts2073-43442020-09-01109106110.3390/catal10091061Glycine–Nitrate Combustion Synthesis of Cu-Based Nanoparticles for NP9EO Degradation ApplicationsHsu-Hui Cheng0Shiao-Shing Chen1Hui-Ming Liu2Liang-Wei Jang3Shu-Yuan Chang4School of Environmental and Chemical Engineering, Zhaoqing University, Zhaoqing 526061, ChinaInstitute of Environment Engineering and Management, National Taipei University of Technology, 1, Sec.3 Chung-Hsiao E. Rd., Taipei 10643, TaiwanDepartment of Safety, Health and Environmental Engineering, Hungkuang University, Taichung 43302, TaiwanInstitute of Environment Engineering and Management, National Taipei University of Technology, 1, Sec.3 Chung-Hsiao E. Rd., Taipei 10643, TaiwanSchool of Foreign Languages, Zhaoqing University, Zhaoqing 526061, ChinaCopper-based nanoparticles were synthesized using the glycine–nitrate process (GNP) by using copper nitrate trihydrate [Cu(NO<sub>3</sub>)<sub>2</sub>·3H<sub>2</sub>O] as the main starting material, and glycine [C<sub>2</sub>H<sub>5</sub>NO<sub>2</sub>] as the complexing and incendiary agent. The as-prepared powders were characterized through X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET), X-ray photoelectron spectroscopy (XPS), and scanning electron microscopy analysis. Using Cu(NO<sub>3</sub>)<sub>2</sub>·3H<sub>2</sub>O as the oxidizer (N) and glycine as fuel (G), we obtained CuO, mixed-valence copper oxides (CuO + Cu<sub>2</sub>O, G/N = 0.3–0.5), and metallic Cu (G/N = 0.7). The XRD and BET results indicated that increasing the glycine concentration (G/N = 0.7) and reducing the particle surface area increased the yield of metallic Cu. The effects of varying reaction parameters, such as catalyst activity, catalyst dosage, and H<sub>2</sub>O<sub>2</sub> concentration on nonylphenol-9-polyethoxylate (NP9EO) degradation, were assessed. With a copper-based catalyst in a heterogeneous system, the NP9EO and total organic carbon removal efficiencies were 83.1% and 70.6%, respectively, under optimum operating conditions (pH, 6.0; catalyst dosage, 0.3 g/L; H<sub>2</sub>O<sub>2</sub> concentration, 0.05 mM). The results suggest that the removal efficiency increased with an increase in H<sub>2</sub>O<sub>2</sub> concentration but decreased when the H<sub>2</sub>O<sub>2</sub> concentration exceeded 0.05 mM. Furthermore, the trend of photocatalytic activity was as follows: G/N = 0.5 > G/N = 0.7 > G/N = 0.3. The G/N = 0.5 catalysts showed the highest photocatalytic activity and resulted in 94.6% NP9EO degradation in 600 min.https://www.mdpi.com/2073-4344/10/9/1061glycine–nitrate processcopper-based nanoparticlesphotocatalysis activityNP9EO |
| spellingShingle | Hsu-Hui Cheng Shiao-Shing Chen Hui-Ming Liu Liang-Wei Jang Shu-Yuan Chang Glycine–Nitrate Combustion Synthesis of Cu-Based Nanoparticles for NP9EO Degradation Applications Catalysts glycine–nitrate process copper-based nanoparticles photocatalysis activity NP9EO |
| title | Glycine–Nitrate Combustion Synthesis of Cu-Based Nanoparticles for NP9EO Degradation Applications |
| title_full | Glycine–Nitrate Combustion Synthesis of Cu-Based Nanoparticles for NP9EO Degradation Applications |
| title_fullStr | Glycine–Nitrate Combustion Synthesis of Cu-Based Nanoparticles for NP9EO Degradation Applications |
| title_full_unstemmed | Glycine–Nitrate Combustion Synthesis of Cu-Based Nanoparticles for NP9EO Degradation Applications |
| title_short | Glycine–Nitrate Combustion Synthesis of Cu-Based Nanoparticles for NP9EO Degradation Applications |
| title_sort | glycine nitrate combustion synthesis of cu based nanoparticles for np9eo degradation applications |
| topic | glycine–nitrate process copper-based nanoparticles photocatalysis activity NP9EO |
| url | https://www.mdpi.com/2073-4344/10/9/1061 |
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