Comparative Study of Improvement of Hematite as Visible Light-Driven Photocatalyst by Doping with Zinc and Copper

Emre Alp

Article Details

Comparative Study of Improvement of Hematite as Visible Light-Driven Photocatalyst by Doping with Zinc and Copper

Authors:

Emre Alp

Publisher:

Duzce University

Main Topics:

Mühendislik

Journal:

Düzce Üniversitesi Bilim ve Teknoloji Dergisi Vol.11 Issue 1, pp.502-512

Document Type:

Article

Publication Date:

1/2023

Document Language:

English

Document ID (Org No.):

2001282879

pISSN:

2148-2446

Keywords:

Abstract:

 The low cost, earth abundance, nontoxic, and efficient photocatalysts materials have a critical role in order to solve environmental issues. In this regard, hematite α-Fe2O3 has received significant attention due to its desirable properties. In the present study, zinc-doped and copper-doped hematite nanoparticles were synthesized by the hydrothermal method. The photocatalytic features of produced nanopowders were investigated. The evaluations of photocatalytic activities of synthesized nanoparticles were executed by monitoring the degradation rate of Rhodamine B RhB under the solar simulator in heterogeneous photocatalysis. Compared to commercial Degussa TiO2 powder, the transition metal doped hematite α-Fe2O3 samples showed better photocatalytic activities against RhB under the solar simulator. It was observed that even though there were no significant differences in their characteristic properties strongly affecting photocatalytic activity such as morphological features, optical absorption characteristics, and band gaps, Cu-doped α-Fe2O3 nanoparticles exhibited higher photocatalytic activity, which is 20 higher than the Zn-doped α-Fe2O3. The synthesized Cu-doped hematite nanoparticles are hopeful materials as a visible-light-driven photocatalytic material to degrade organic pollutants in aquatic media.

 The low cost, earth abundance, nontoxic, and efficient photocatalysts materials have a critical role in order to solve environmental issues. In this regard, hematite α-Fe2O3 has received significant attention due to its desirable properties. In the present study, zinc-doped and copper-doped hematite nanoparticles were synthesized by the hydrothermal method. The photocatalytic features of produced nanopowders were investigated. The evaluations of photocatalytic activities of synthesized nanoparticles were executed by monitoring the degradation rate of Rhodamine B RhB under the solar simulator in heterogeneous photocatalysis. Compared to commercial Degussa TiO2 powder, the transition metal doped hematite α-Fe2O3 samples showed better photocatalytic activities against RhB under the solar simulator. It was observed that even though there were no significant differences in their characteristic properties strongly affecting photocatalytic activity such as morphological features, optical absorption characteristics, and band gaps, Cu-doped α-Fe2O3 nanoparticles exhibited higher photocatalytic activity, which is 20 higher than the Zn-doped α-Fe2O3. The synthesized Cu-doped hematite nanoparticles are hopeful materials as a visible-light-driven photocatalytic material to degrade organic pollutants in aquatic media.

 The low cost, earth abundance, nontoxic, and efficient photocatalysts materials have a critical role in order to solve environmental issues. In this regard, hematite α-Fe2O3 has received significant attention due to its desirable properties. In the present study, zinc-doped and copper-doped hematite nanoparticles were synthesized by the hydrothermal method. The photocatalytic features of produced nanopowders were investigated. The evaluations of photocatalytic activities of synthesized nanoparticles were executed by monitoring the degradation rate of Rhodamine B RhB under the solar simulator in heterogeneous photocatalysis. Compared to commercial Degussa TiO2 powder, the transition metal doped hematite α-Fe2O3 samples showed better photocatalytic activities against RhB under the solar simulator. It was observed that even though there were no significant differences in their characteristic properties strongly affecting photocatalytic activity such as morphological features, optical absorption characteristics, and band gaps, Cu-doped α-Fe2O3 nanoparticles exhibited higher photocatalytic activity, which is 20 higher than the Zn-doped α-Fe2O3. The synthesized Cu-doped hematite nanoparticles are hopeful materials as a visible-light-driven photocatalytic material to degrade organic pollutants in aquatic media.

 Çevre ile ilgili konuların çözümünde, ucuz, bol bulunan, toksik olmayan ve verimli çalışan fotokatalitik malzemeler kritik role sahiptir. Bu açıdan, hematit α-Fe2O3 istenen bu özelliklerden dolayı oldukça ilgi çekmektedir. Bu çalışmada, çinko katkılı ve bakır katkılı hematit nanopartiküller hidrotermal yöntem ile sentezlenmiştir. Üretilen nanotozların fotokatalitik özellikleri incelenmiştir. Sentezlenen nanopartiküllerin fotokatalitik aktivitesi güneş simülatörü altında Rodamin b.yi parçalama performansı izlenerek belirlenmiştir. Geçiş metalleriyle katkılanmış hematit yapıların Rodamin b.yi RhB parçalama verimi, ticari ürün Degussa TiO2 tozlara göre daha yüksekti. Fotokatalitik aktiviteyi güçlü bir şekilde etkileyen ışık absorpsiyonu, morfolojik yapı ve optik bant genişliği gibi özellikler açısından büyük farklar olmasa da, Cu-katkılı α-Fe2O3 nanopartiküllerin, Zn-katkılı α-Fe2O3 nanopartiküllerden 20 kadar daha yüksek fotokatalitik aktive gösterdiği gözlemlendi. Sulu ortamlardaki organik kirliliklerin temizlenmesinde, Cu-katkılı α-Fe2O3 nanopartiküller görünür bölgede aktif fotokatalitik malzeme olarak umut verici bir malzemedir.

Article Details

Comparative Study of Improvement of Hematite as Visible Light-Driven Photocatalyst by Doping with Zinc and Copper

Authors:

Emre Alp

Publisher:

Duzce University

Main Topics:

Mühendislik

Journal:

Düzce Üniversitesi Bilim ve Teknoloji Dergisi Vol.11 Issue 1, pp.502-512

Document Type:

Article

Publication Date:

1/2023

Document Language:

English

Document ID (Org No.):

2001282879

pISSN:

2148-2446

Hematite (α-Fe2O3)

Zn-doped Hematite

Cu-doped Hematite

Heterogeneous Photocatalysis

Hematit (α-Fe2O3)

Zn-katkılı hematit

Cu-katkılı hematit

Heterojen fotokataliz

Hematite (α-Fe2O3)

Zn-doped Hematite

Cu-doped Hematite

Heterogeneous Photocatalysis

Issues

Article Details

Authors: Emre Alp

Publisher: Duzce University

Main Topics: Mühendislik

Journal: Düzce Üniversitesi Bilim ve Teknoloji Dergisi Vol.11 Issue 1, pp.502-512

Document Type: Article

Publication Date: 1/2023

Document Language: English

Document ID (Org No.): 2001282879

pISSN: 2148-2446

Issues

Authors:

Emre Alp

Publisher:

Duzce University

Main Topics:

Mühendislik

Journal:

Düzce Üniversitesi Bilim ve Teknoloji Dergisi Vol.11 Issue 1, pp.502-512

Document Type:

Article

Publication Date:

1/2023

Document Language:

English

Document ID (Org No.):

2001282879

pISSN:

2148-2446