SINTESIS DAN KARAKTERISASI FOTOKATALIS TiO2-Cu

Riyani, Kapti; Setyaningtyas, Tien; Dwiasi, Dian Windy

doi:10.20884/1.jm.2015.10.2.178

Cited by 6 publications

(7 citation statements)

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“…The pretreatment process is carried out using Whatman filter paper to separate liquid waste from solids and mucus. TiO2-Cu photocatalyst preparation [7] TiO2-CuO photocatalyst was synthesized by the photodeposition method. The doping process was carried out by 3 grams of TiO2 and 100 mL of aquademine to form a suspension.…”

Section: Research Methods Materialsmentioning

confidence: 99%

“…Although capable of degrading organic pollutants [5][6][7], TiO2 in wastewater treatment techniques still encounters obstacles. One of them is the band gap energy of TiO2, which is quite large (3.2eV), causing the use of sunlight which only contains a small portion of UV light ± 5% become less efficient.…”

Section: Introductionmentioning

confidence: 99%

“…X-Ray Diffraction (XRD) analysis showed that the Cu dopant synthesized by the deposition method appeared as an oxide, CuO and Cu2O [7,14,15]. CuO and Cu2O have narrow band gaps, 1.2 and 2 eV [16].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The Treatment of Phenol in Batik Wastewater by TiO2 -Copper Oxide (CuO And Cu2O) Photocatalyst

Afifah

2022

J. Kartika Kimia

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Phenol is an organic material in batik waste that must be processed before disposal because it is carcinogenic and can reduce dissolved oxygen levels. The method used to treat phenol is Advanced Oxidation Process (AOPs). The AOPs method is a waste treatment technology with free radicals to degrade pollutants into CO2 and H2O. Oxidizing agents are hydroxyl radicals (•OH) produced by certain materials, one of which is TiO2. Although proven capable of degrading organic pollutants, the use of TiO2 still encounters a reasonably significant band gap energy constraint for TiO2 (3.2 eV). The modifications carried out in this study were the addition of copper (Cu) dopants to reduce the TiO2 band gap and electron trapping to prevent electron and hole recombination. The synthesis of TiO2-Cu oxide was carried out by deposition method using TiO2 and CuCl2.5H2O as Cu precursors. The results showed that the addition of Cu to TiO2 reduced the band gap energy up to 2.25 eV. The data showed that phenol treatment using TiO2:Cu (98:2) for 6 hours at pH 2, under the influence of a tungsten lamp, could reduce phenol up to 98.03%. The photodegradation process with TiO2:Cu ratio and the same pH can occur more quickly with a UV lamp for 2 hours. The amount of phenol that can be degraded under these conditions is 98.23%.

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Section: Research Methods Materialsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The Treatment of Phenol in Batik Wastewater by TiO2 -Copper Oxide (CuO And Cu2O) Photocatalyst

Afifah

2022

J. Kartika Kimia

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“…Oleh karena itu, penggabungan Cu ke dalam kisi titania dapat meningkatkan efisiensi fotokatalitik (Raguram & Rajni, 2022). Riyani (2012) melaporkan bahwa penambahan Cu sebagai doping logam dalam sintesis titania menggunakan metode fotodeposisi dapat mengubah morfologi dari fotokatalis titania dan menurunkan nilai energi band gap hingga 2,25 eV, sehingga dimungkinkan TiO2/Cu dapat aktif pada cahaya tampak.…”

Section: Modifikasi Dengan Besi (Fe)unclassified

Modified Titanium Oxide with Metal Doping as Photocatalyst in Photochemical Water Splitting

Haris Prayudha Setyawan,

Okta Suryani

2024

J. Sains Nat.

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This article focuses on the modification of titanium oxide (TiO2) using metal doping to improve its photocatalytic activity in photochemical water splitting systems. TiO2 is a widely used photocatalyst, which has a wide band gap energy and rapid recombination of photogenerated electron-hole pairs, thus reducing the efficiency of photochemical water splitting systems. Metal doping, such as Pt, Cu, Fe, and V metals can lower the band gap energy of the photocatalyst, increase the absorption of visible light, and reduce electron-hole recombination. Modified TiO2 shows promising results in photochemical water splitting, utilising a wider range of visible light from the solar spectrum thereby improving the efficiency of the photochemical water splitting system.

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“…The curriculum developed should adapt to the potential of each region, this can certainly empower students according to the potential and needs of themselves and their environment, so that there is a huge opportunity for regions and education managers to make adjustments, modifications, and contextualization of the curriculum according to their needs with the potential of the region and the reality on the ground (Fitriansyah et al, 2018). Learning resources are very influential on learning achievement, the more and more complete learning resources and their presence is easily accessible, the easier it is for students to prepare themselves in the learning process which will ultimately improve student learning achievement (Riyani, 2015). Some examples of learning resources are books, modules, magazines, films, popular scientific books and so on.…”

Section: A Introductionmentioning

confidence: 99%

The Practicality of Popular Scientific Book of Pteridophytes Diversity in Tabanio Beach Forest, Tanah Laut District, South Borneo

Nurlita

Arifin

Winarti

2021

bino

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Learning using popular scientific books based on the local potential of an area is one solution that can be used to overcome students' lack of reading interest in learning due to limited learning resources in the Pteridophyta concept. This study aims to describe the practicality of a popular scientific book Diversity of the Tabanio Coastal Forest Pteridophyta. The method used is development research with the Tessmer formative test. The results showed that popular scientific books that have been developed obtained student responses with an average of 94.3% with very good criteria and the results of implementing the use of popular scientific books with an average of 92.6% with very good criteria. This shows that a popular scientific book Diversity of Tabanio Coastal Forest Pteridophyta is very practical to be used as an enrichment material in learning Low Plant Botany.Abstrak Pembelajaran dengan menggunakan buku ilmiah populer (BIP) berdasarkan potensi lokal yang dimiliki sebuah daerah merupakan salah satu solusi yang dapat digunakan untuk mengatasi kurangnya minat membaca mahasiswa dalam pembelajaran karena keterbatasan sumber belajar pada konsep Pteridophyta. Penelitian ini bertujuan untuk mendeskripsikan kepraktisan buku ilmiah populer Keanekaragaman Pteridophyta Hutan Pantai Tabanio. Metode yang digunakan adalah penelitian pengembangan dengan uji formatif Tessmer. Hasil penelitian menunjukkan buku ilmiah populer yang telah dikembangkan memperoleh hasil respons mahasiswa dengan rata-rata sebesar 94,3% dengan kriteria sangat setuju dan hasil keterlaksanaan penggunaan buku ilmiah populer dengan rata-rata sebesar 92,6% dengan kriteria sangat baik. Hal tersebut menunjukkan bahwa buku ilmiah populer Keanekaragaman Pteridophyta Hutan Pantai Tabanio sangat praktis digunakan sebagai bahan pengayaan dalam pembelajaran Botani Tumbuhan Rendah.

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SINTESIS DAN KARAKTERISASI FOTOKATALIS TiO2-Cu

Cited by 6 publications

References 0 publications

The Treatment of Phenol in Batik Wastewater by TiO2 -Copper Oxide (CuO And Cu2O) Photocatalyst

The Treatment of Phenol in Batik Wastewater by TiO2 -Copper Oxide (CuO And Cu2O) Photocatalyst

Modified Titanium Oxide with Metal Doping as Photocatalyst in Photochemical Water Splitting

The Practicality of Popular Scientific Book of Pteridophytes Diversity in Tabanio Beach Forest, Tanah Laut District, South Borneo

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