Removal of Cd2+ by N-CNS/ZnO nanocomposite from wastewater and reuse of Cd2+-N-CNS/ZnO in blood fingerprint detection
In this study, an N-CNS/ZnO nanocomposite was used to adsorb the Cd2+ ion from an aqueous solution, and the spent Cd-loaded absorbent was reused in blood fingerprint detection. N-carbon nanosheets (N-CNS) were produced from potato peels and then coated with ZnO nanoparticles. XRD, TEM, SEM, and FTIR...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-01-01
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| Series: | Results in Chemistry |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211715622003794 |
| _version_ | 1828268600504352768 |
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| author | Y.B. Nthwane B.G. Fouda-Mbanga M. Thwala K. Pillay |
| author_facet | Y.B. Nthwane B.G. Fouda-Mbanga M. Thwala K. Pillay |
| author_sort | Y.B. Nthwane |
| collection | DOAJ |
| description | In this study, an N-CNS/ZnO nanocomposite was used to adsorb the Cd2+ ion from an aqueous solution, and the spent Cd-loaded absorbent was reused in blood fingerprint detection. N-carbon nanosheets (N-CNS) were produced from potato peels and then coated with ZnO nanoparticles. XRD, TEM, SEM, and FTIR were used to examine the sample functionality and Surface morphology. The effect of pH, adsorbent dosage, temperature, and time was examined using ICP-OES. Removal efficiencies optimum conditions for the Cd2+ were pH 8 with 99.05 %, adsorbent dosage of 100 mg with 99,97 %, temperature (55) with 93,34 % and time (3 h) with 91,24 %. Additionally, the adsorption pseudo-second-order and Langmuir isotherm models were best fitted for Cd2+ ion removal. The maximum adsorption capacity of Cd2+ ions was 8.762 mg/g. Therefore, N-CNS/ZnO nanocomposite can remove Cd2+ ions in wastewater, and its potential for re-use in blood fingerprint detection helps eliminate secondary environmental pollution. |
| first_indexed | 2024-04-13T05:19:55Z |
| format | Article |
| id | doaj.art-27619144ccb04101875a42ef0b0298db |
| institution | Directory Open Access Journal |
| issn | 2211-7156 |
| language | English |
| last_indexed | 2024-04-13T05:19:55Z |
| publishDate | 2022-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Chemistry |
| spelling | doaj.art-27619144ccb04101875a42ef0b0298db2022-12-22T03:00:46ZengElsevierResults in Chemistry2211-71562022-01-014100660Removal of Cd2+ by N-CNS/ZnO nanocomposite from wastewater and reuse of Cd2+-N-CNS/ZnO in blood fingerprint detectionY.B. Nthwane0B.G. Fouda-Mbanga1M. Thwala2K. Pillay3Department of Chemical Sciences, University of Johannesburg, Doornfontein Campus, Johannesburg 2028, South AfricaDepartment of Chemical Sciences, University of Johannesburg, Doornfontein Campus, Johannesburg 2028, South AfricaAcademy of Science of South Africa, Pretoria 0001, South Africa; Department of Environmental Health, Nelson Mandela University, Port Elizabeth 6031, South AfricaDepartment of Chemical Sciences, University of Johannesburg, Doornfontein Campus, Johannesburg 2028, South Africa; Corresponding author.In this study, an N-CNS/ZnO nanocomposite was used to adsorb the Cd2+ ion from an aqueous solution, and the spent Cd-loaded absorbent was reused in blood fingerprint detection. N-carbon nanosheets (N-CNS) were produced from potato peels and then coated with ZnO nanoparticles. XRD, TEM, SEM, and FTIR were used to examine the sample functionality and Surface morphology. The effect of pH, adsorbent dosage, temperature, and time was examined using ICP-OES. Removal efficiencies optimum conditions for the Cd2+ were pH 8 with 99.05 %, adsorbent dosage of 100 mg with 99,97 %, temperature (55) with 93,34 % and time (3 h) with 91,24 %. Additionally, the adsorption pseudo-second-order and Langmuir isotherm models were best fitted for Cd2+ ion removal. The maximum adsorption capacity of Cd2+ ions was 8.762 mg/g. Therefore, N-CNS/ZnO nanocomposite can remove Cd2+ ions in wastewater, and its potential for re-use in blood fingerprint detection helps eliminate secondary environmental pollution.http://www.sciencedirect.com/science/article/pii/S2211715622003794AdsorptionBlood fingerprintCadmiumN-CNS/ZnO nanocomposite |
| spellingShingle | Y.B. Nthwane B.G. Fouda-Mbanga M. Thwala K. Pillay Removal of Cd2+ by N-CNS/ZnO nanocomposite from wastewater and reuse of Cd2+-N-CNS/ZnO in blood fingerprint detection Results in Chemistry Adsorption Blood fingerprint Cadmium N-CNS/ZnO nanocomposite |
| title | Removal of Cd2+ by N-CNS/ZnO nanocomposite from wastewater and reuse of Cd2+-N-CNS/ZnO in blood fingerprint detection |
| title_full | Removal of Cd2+ by N-CNS/ZnO nanocomposite from wastewater and reuse of Cd2+-N-CNS/ZnO in blood fingerprint detection |
| title_fullStr | Removal of Cd2+ by N-CNS/ZnO nanocomposite from wastewater and reuse of Cd2+-N-CNS/ZnO in blood fingerprint detection |
| title_full_unstemmed | Removal of Cd2+ by N-CNS/ZnO nanocomposite from wastewater and reuse of Cd2+-N-CNS/ZnO in blood fingerprint detection |
| title_short | Removal of Cd2+ by N-CNS/ZnO nanocomposite from wastewater and reuse of Cd2+-N-CNS/ZnO in blood fingerprint detection |
| title_sort | removal of cd2 by n cns zno nanocomposite from wastewater and reuse of cd2 n cns zno in blood fingerprint detection |
| topic | Adsorption Blood fingerprint Cadmium N-CNS/ZnO nanocomposite |
| url | http://www.sciencedirect.com/science/article/pii/S2211715622003794 |
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