Green Synthesis of Hexagonal Hematite (α-Fe2O3) Flakes Using Pluronic F127-Gelatin Template for Adsorption and Photodegradation of Ibuprofen

Hematite (α-Fe2O3) with uniform hexagonal flake morphology has been successfully synthesized using a combination of gelatin as natural template with F127 via hydrothermal method. The resulting hematite was investigated as adsorbent and photocatalyst for...

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Autores principales:	Maria Ulfa, Didik Prasetyoko, Hasliza Bahruji, Reva Edra Nugraha
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	α-Fe<sub>2</sub>O<sub>3</sub> hematite gelatin F-127 hexagonal-flake adsorption Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/adeb73950db44ad5a6edb7e6f104f032
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spelling	oai:doaj.org-article:adeb73950db44ad5a6edb7e6f104f0322021-11-25T18:13:31ZGreen Synthesis of Hexagonal Hematite (α-Fe<sub>2</sub>O<sub>3</sub>) Flakes Using Pluronic F127-Gelatin Template for Adsorption and Photodegradation of Ibuprofen10.3390/ma142267791996-1944https://doaj.org/article/adeb73950db44ad5a6edb7e6f104f0322021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/22/6779https://doaj.org/toc/1996-1944Hematite (α-Fe<sub>2</sub>O<sub>3</sub>) with uniform hexagonal flake morphology has been successfully synthesized using a combination of gelatin as natural template with F127 via hydrothermal method. The resulting hematite was investigated as adsorbent and photocatalyst for removal of ibuprofen as pharmaceutical waste. Hexagonal flake-like hematite was obtained following calcination at 500 °C with the average size was measured at 1–3 µm. Increasing the calcination temperature to 700 °C transformed the uniform hexagonal structure into cubic shape morphology. Hematite also showed high thermal stability with increasing the calcination temperatures; however, the surface area was reduced from 47 m<sup>2</sup>/g to 9 m<sup>2</sup>/g. FTIR analysis further confirmed the formation Fe-O-Fe bonds, and the main constituent elements of Fe and O were observed in EDX analysis for all samples. α-Fe<sub>2</sub>O<sub>3</sub> samples have an average adsorption capacity of 55–25.5 mg/g at 12–22% of removal efficiency when used as adsorbent for ibuprofen. The adsorption capacity was reduced as the calcination temperatures increased due to the reduction of available surface area of the hexagonal flakes after transforming into cubes. Photocatalytic degradation of ibuprofen using hematite flakes achieved 50% removal efficiency; meanwhile, combination of adsorption and photocatalytic degradation further removed 80% of ibuprofen in water/hexane mixtures.Maria UlfaDidik PrasetyokoHasliza BahrujiReva Edra NugrahaMDPI AGarticleα-Fe<sub>2</sub>O<sub>3</sub>hematitegelatinF-127hexagonal-flakeadsorptionTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6779, p 6779 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	α-Fe<sub>2</sub>O<sub>3</sub> hematite gelatin F-127 hexagonal-flake adsorption Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	α-Fe<sub>2</sub>O<sub>3</sub> hematite gelatin F-127 hexagonal-flake adsorption Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Maria Ulfa Didik Prasetyoko Hasliza Bahruji Reva Edra Nugraha Green Synthesis of Hexagonal Hematite (α-Fe<sub>2</sub>O<sub>3</sub>) Flakes Using Pluronic F127-Gelatin Template for Adsorption and Photodegradation of Ibuprofen
description	Hematite (α-Fe<sub>2</sub>O<sub>3</sub>) with uniform hexagonal flake morphology has been successfully synthesized using a combination of gelatin as natural template with F127 via hydrothermal method. The resulting hematite was investigated as adsorbent and photocatalyst for removal of ibuprofen as pharmaceutical waste. Hexagonal flake-like hematite was obtained following calcination at 500 °C with the average size was measured at 1–3 µm. Increasing the calcination temperature to 700 °C transformed the uniform hexagonal structure into cubic shape morphology. Hematite also showed high thermal stability with increasing the calcination temperatures; however, the surface area was reduced from 47 m<sup>2</sup>/g to 9 m<sup>2</sup>/g. FTIR analysis further confirmed the formation Fe-O-Fe bonds, and the main constituent elements of Fe and O were observed in EDX analysis for all samples. α-Fe<sub>2</sub>O<sub>3</sub> samples have an average adsorption capacity of 55–25.5 mg/g at 12–22% of removal efficiency when used as adsorbent for ibuprofen. The adsorption capacity was reduced as the calcination temperatures increased due to the reduction of available surface area of the hexagonal flakes after transforming into cubes. Photocatalytic degradation of ibuprofen using hematite flakes achieved 50% removal efficiency; meanwhile, combination of adsorption and photocatalytic degradation further removed 80% of ibuprofen in water/hexane mixtures.
format	article
author	Maria Ulfa Didik Prasetyoko Hasliza Bahruji Reva Edra Nugraha
author_facet	Maria Ulfa Didik Prasetyoko Hasliza Bahruji Reva Edra Nugraha
author_sort	Maria Ulfa
title	Green Synthesis of Hexagonal Hematite (α-Fe<sub>2</sub>O<sub>3</sub>) Flakes Using Pluronic F127-Gelatin Template for Adsorption and Photodegradation of Ibuprofen
title_short	Green Synthesis of Hexagonal Hematite (α-Fe<sub>2</sub>O<sub>3</sub>) Flakes Using Pluronic F127-Gelatin Template for Adsorption and Photodegradation of Ibuprofen
title_full	Green Synthesis of Hexagonal Hematite (α-Fe<sub>2</sub>O<sub>3</sub>) Flakes Using Pluronic F127-Gelatin Template for Adsorption and Photodegradation of Ibuprofen
title_fullStr	Green Synthesis of Hexagonal Hematite (α-Fe<sub>2</sub>O<sub>3</sub>) Flakes Using Pluronic F127-Gelatin Template for Adsorption and Photodegradation of Ibuprofen
title_full_unstemmed	Green Synthesis of Hexagonal Hematite (α-Fe<sub>2</sub>O<sub>3</sub>) Flakes Using Pluronic F127-Gelatin Template for Adsorption and Photodegradation of Ibuprofen
title_sort	green synthesis of hexagonal hematite (α-fe<sub>2</sub>o<sub>3</sub>) flakes using pluronic f127-gelatin template for adsorption and photodegradation of ibuprofen
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/adeb73950db44ad5a6edb7e6f104f032
work_keys_str_mv	AT mariaulfa greensynthesisofhexagonalhematiteafesub2subosub3subflakesusingpluronicf127gelatintemplateforadsorptionandphotodegradationofibuprofen AT didikprasetyoko greensynthesisofhexagonalhematiteafesub2subosub3subflakesusingpluronicf127gelatintemplateforadsorptionandphotodegradationofibuprofen AT haslizabahruji greensynthesisofhexagonalhematiteafesub2subosub3subflakesusingpluronicf127gelatintemplateforadsorptionandphotodegradationofibuprofen AT revaedranugraha greensynthesisofhexagonalhematiteafesub2subosub3subflakesusingpluronicf127gelatintemplateforadsorptionandphotodegradationofibuprofen
_version_	1718411458693300224

Green Synthesis of Hexagonal Hematite (α-Fe<sub>2</sub>O<sub>3</sub>) Flakes Using Pluronic F127-Gelatin Template for Adsorption and Photodegradation of Ibuprofen

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