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Photocatalytic Reduction of Aqueous Cr(VI) with CdS under Visible Light Irradiation: Effect of Particle Size

Bulletin of Chemical Reaction Engineering & Catalysis · Vol. ume (2017) · hlm. 62–70

DOI
10.9767/bcrec.12.1.593.62-70
ISSN
1978-2993
Terbit
2017-04-30
Penerbit
Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)
Bahasa
eng
Lisensi
creativecommons.org/licenses/by-sa/4.0

Abstrak

Stringent environmental standards have made the removal of Cr(VI) from water an important problem for environmental scientist and engineering. Heterogeneous photocatalysis using suspended photocatalyst is an interesting technique to consider for this application. In this work, the influence of particle size of suspended CdS on the photocatalytic reduction of aqueous Cr(VI) ion was investigated. The efficiency of Cr(VI) reduction was monitored through UV-visible analysis. The experimental results showed that the nanoparticle size has a dramatic effect on the adsorption and reduction of Cr(VI). As surface area increased from 44.2±0.6 to 98.7±0.5 m2/g due to particle size reduction, the rate of Cr(VI) reduction nearly doubled in the first 20 min of visible light irradiation. The results evidenced the inverse relationship between the apparent reduction rate constant and the CdS particle size. Conversely, the half-life (t1/2) period of the photocatalytic reduction has a direct relationship with CdS particle sizes.

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  • Universiti Putra Malaysia
  • University of Technology - Iraq
  • Universiti Malaysia Pahang Al-Sultan Abdullah
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Tampilkan sebagai tabel
Rekan penulisOrganisasiArtikel bersama
R.S.R.M. HafrizUniversiti Putra Malaysia2
H. W. GohAfiliasi tidak diketahui2
Azni IdrisUniversiti Putra Malaysia2
Alyaa Khadhier MageedUniversity of Technology - Iraq1
Dayang Radiah Awang BiakUniversiti Putra Malaysia1
Shamsul IzharUniversiti Putra Malaysia1
Musab Abdul RazakUniversiti Putra Malaysia1
Bamidele Victor AyodeleUniversiti Malaysia Pahang Al-Sultan Abdullah1
Yun Hin Taufiq‐YapUniversiti Putra Malaysia1
Robiah Bt. YunusUniversiti Putra Malaysia1
Faten Hameed KamilUniversiti Putra Malaysia1
Rozita OmarUniversiti Putra Malaysia1
Abdulkareem Ghassan AlsultsanUniversiti Putra Malaysia1

Afiliasi berasal dari OpenAlex; metadata OAI-PMH jurnal tidak memuatnya. Penulis tanpa ID OpenAlex dicocokkan berdasarkan nama, sehingga dua orang bisa tergabung atau satu orang bisa terpisah.

Sumber metadata: OAI-PMH (metadata jurnal) https://journal.bcrec.id/index.php/bcrec/oai, pertama di-harvest 8 Nov 2026, terakhir terlihat 8 Nov 2026.
Metadata asli (oai_dc) 
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	<dc:title xml:lang="en-US">Photocatalytic Reduction of Aqueous Cr(VI) with CdS under Visible Light Irradiation: Effect of Particle Size</dc:title>
	<dc:creator>Makama, A. B.</dc:creator>
	<dc:creator>Salmiaton, Ali</dc:creator>
	<dc:creator>Saion, Elias B.</dc:creator>
	<dc:creator>Choong, T.S.Y.</dc:creator>
	<dc:creator>Abdullah, N.</dc:creator>
	<dc:subject xml:lang="en-US">CdS; chromium(VI); photocatalyst; half-life; particle size</dc:subject>
	<dc:description xml:lang="en-US">Stringent environmental standards have made the removal of Cr(VI) from water an important problem for environmental scientist and engineering. Heterogeneous photocatalysis using suspended photocatalyst is an interesting technique to consider for this application. In this work, the influence of particle size of suspended CdS on the photocatalytic reduction of aqueous Cr(VI) ion was investigated. The efficiency of Cr(VI) reduction was monitored through UV-visible analysis. The experimental results showed that the nanoparticle size has a dramatic effect on the adsorption and reduction of Cr(VI). As surface area increased from 44.2±0.6 to 98.7±0.5 m2/g due to particle size reduction, the rate of Cr(VI) reduction nearly doubled in the first 20 min of visible light irradiation. The results evidenced the inverse relationship between the apparent reduction rate constant and the CdS particle size. Conversely, the half-life (t1/2) period of the photocatalytic reduction has a direct relationship with CdS particle sizes. </dc:description>
	<dc:publisher xml:lang="en-US">Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)</dc:publisher>
	<dc:contributor xml:lang="en-US">Ministry of Education, Government of Malaysia</dc:contributor>
	<dc:date>2017-04-30</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:type xml:lang="en-US"></dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://journal.bcrec.id/index.php/bcrec/article/view/593</dc:identifier>
	<dc:identifier>10.9767/bcrec.12.1.593.62-70</dc:identifier>
	<dc:source xml:lang="en-US">Bulletin of Chemical Reaction Engineering &amp; Catalysis; 2017: BCREC Volume 12 Issue 1 Year 2017 (April 2017); 62-70</dc:source>
	<dc:source>1978-2993</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://journal.bcrec.id/index.php/bcrec/article/view/593/616</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2017 by Authors, Published by BCREC Group</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-sa/4.0</dc:rights>
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