Synthesis and characterization of Cu(OH)2-NWs-PVA-AC Nano-composite and its use as an efficient adsorbent for removal of methylene blue

Abstract The present study focused on the synthesis of copper hydroxide nanowires decorated on activated carbon (Cu(OH)2-NWs-PVA-AC). The obtained Cu(OH)2-NWs-PVA-AC Nano-composite was distinguished by XRD, SEM, EDX, BET, FTIR and XPS respectively. Besides, different variables such as solution pH, a...

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Autores principales:	Sivarama Krishna Lakkaboyana, Khantong Soontarapa, Nabel Kalel Asmel, Vinay Kumar, Ravi Kumar Marella, Ali Yuzir, Wan Zuhairi Wan Yaacob Zuhairi
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/cff5720cf2874ebbac7b9cc2f2455f16
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spelling	oai:doaj.org-article:cff5720cf2874ebbac7b9cc2f2455f162021-12-02T13:19:31ZSynthesis and characterization of Cu(OH)2-NWs-PVA-AC Nano-composite and its use as an efficient adsorbent for removal of methylene blue10.1038/s41598-021-84797-32045-2322https://doaj.org/article/cff5720cf2874ebbac7b9cc2f2455f162021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-84797-3https://doaj.org/toc/2045-2322Abstract The present study focused on the synthesis of copper hydroxide nanowires decorated on activated carbon (Cu(OH)2-NWs-PVA-AC). The obtained Cu(OH)2-NWs-PVA-AC Nano-composite was distinguished by XRD, SEM, EDX, BET, FTIR and XPS respectively. Besides, different variables such as solution pH, and initial dye concentration, contact time, and temperature were performed on the adsorption efficiency of MB in a small batch reactor. Further, the experimental results are analyzed by various kinetic models via PFO, PSO, intra-particle diffusion and Elovich models, and the results revealed that among the kinetic models, PSO shows more suitability. In addition, different adsorption isotherms were applied to the obtained experimental data and found that Langmuir–Freundlich and Langmuir isotherm were best fits with the maximum adsorption capacity of 139.9 and 107.6 mg/g, respectively. The Nano-composite has outstanding MB removal efficiency of 94–98.5% with a span of 10 min. and decent adsorption of about 98.5% at a pH of 10. Thermodynamic constants like Gibbs free energy, entropy, and enthalpy were analyzed from the temperature reliance. The results reveal the adsorption processes are spontaneous and exothermic in nature. The high negative value of ΔG° (− 44.11 to − 48.86 kJ/mol) and a low negative value of ΔH° (− 28.96 kJ/mol) show the feasibility and exothermic nature of the adsorption process. The synthesized dye was found to be an efficient adsorbent for the potential removal of cationic dye (methylene blue) from wastewater within a short time.Sivarama Krishna LakkaboyanaKhantong SoontarapaNabel Kalel AsmelVinay KumarRavi Kumar MarellaAli YuzirWan Zuhairi Wan Yaacob ZuhairiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-17 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Sivarama Krishna Lakkaboyana Khantong Soontarapa Nabel Kalel Asmel Vinay Kumar Ravi Kumar Marella Ali Yuzir Wan Zuhairi Wan Yaacob Zuhairi Synthesis and characterization of Cu(OH)2-NWs-PVA-AC Nano-composite and its use as an efficient adsorbent for removal of methylene blue
description	Abstract The present study focused on the synthesis of copper hydroxide nanowires decorated on activated carbon (Cu(OH)2-NWs-PVA-AC). The obtained Cu(OH)2-NWs-PVA-AC Nano-composite was distinguished by XRD, SEM, EDX, BET, FTIR and XPS respectively. Besides, different variables such as solution pH, and initial dye concentration, contact time, and temperature were performed on the adsorption efficiency of MB in a small batch reactor. Further, the experimental results are analyzed by various kinetic models via PFO, PSO, intra-particle diffusion and Elovich models, and the results revealed that among the kinetic models, PSO shows more suitability. In addition, different adsorption isotherms were applied to the obtained experimental data and found that Langmuir–Freundlich and Langmuir isotherm were best fits with the maximum adsorption capacity of 139.9 and 107.6 mg/g, respectively. The Nano-composite has outstanding MB removal efficiency of 94–98.5% with a span of 10 min. and decent adsorption of about 98.5% at a pH of 10. Thermodynamic constants like Gibbs free energy, entropy, and enthalpy were analyzed from the temperature reliance. The results reveal the adsorption processes are spontaneous and exothermic in nature. The high negative value of ΔG° (− 44.11 to − 48.86 kJ/mol) and a low negative value of ΔH° (− 28.96 kJ/mol) show the feasibility and exothermic nature of the adsorption process. The synthesized dye was found to be an efficient adsorbent for the potential removal of cationic dye (methylene blue) from wastewater within a short time.
format	article
author	Sivarama Krishna Lakkaboyana Khantong Soontarapa Nabel Kalel Asmel Vinay Kumar Ravi Kumar Marella Ali Yuzir Wan Zuhairi Wan Yaacob Zuhairi
author_facet	Sivarama Krishna Lakkaboyana Khantong Soontarapa Nabel Kalel Asmel Vinay Kumar Ravi Kumar Marella Ali Yuzir Wan Zuhairi Wan Yaacob Zuhairi
author_sort	Sivarama Krishna Lakkaboyana
title	Synthesis and characterization of Cu(OH)2-NWs-PVA-AC Nano-composite and its use as an efficient adsorbent for removal of methylene blue
title_short	Synthesis and characterization of Cu(OH)2-NWs-PVA-AC Nano-composite and its use as an efficient adsorbent for removal of methylene blue
title_full	Synthesis and characterization of Cu(OH)2-NWs-PVA-AC Nano-composite and its use as an efficient adsorbent for removal of methylene blue
title_fullStr	Synthesis and characterization of Cu(OH)2-NWs-PVA-AC Nano-composite and its use as an efficient adsorbent for removal of methylene blue
title_full_unstemmed	Synthesis and characterization of Cu(OH)2-NWs-PVA-AC Nano-composite and its use as an efficient adsorbent for removal of methylene blue
title_sort	synthesis and characterization of cu(oh)2-nws-pva-ac nano-composite and its use as an efficient adsorbent for removal of methylene blue
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/cff5720cf2874ebbac7b9cc2f2455f16
work_keys_str_mv	AT sivaramakrishnalakkaboyana synthesisandcharacterizationofcuoh2nwspvaacnanocompositeanditsuseasanefficientadsorbentforremovalofmethyleneblue AT khantongsoontarapa synthesisandcharacterizationofcuoh2nwspvaacnanocompositeanditsuseasanefficientadsorbentforremovalofmethyleneblue AT nabelkalelasmel synthesisandcharacterizationofcuoh2nwspvaacnanocompositeanditsuseasanefficientadsorbentforremovalofmethyleneblue AT vinaykumar synthesisandcharacterizationofcuoh2nwspvaacnanocompositeanditsuseasanefficientadsorbentforremovalofmethyleneblue AT ravikumarmarella synthesisandcharacterizationofcuoh2nwspvaacnanocompositeanditsuseasanefficientadsorbentforremovalofmethyleneblue AT aliyuzir synthesisandcharacterizationofcuoh2nwspvaacnanocompositeanditsuseasanefficientadsorbentforremovalofmethyleneblue AT wanzuhairiwanyaacobzuhairi synthesisandcharacterizationofcuoh2nwspvaacnanocompositeanditsuseasanefficientadsorbentforremovalofmethyleneblue
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Synthesis and characterization of Cu(OH)2-NWs-PVA-AC Nano-composite and its use as an efficient adsorbent for removal of methylene blue

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