Uji Aktivitas Fotokatalis Senyawa Aurivillius Lapis EmpaT SrBi4Ti4O15 dalam Mendegradasi Rhodamine-B

Haikal, Fikri; Prasetyo, Anton

doi:10.15575/ak.v8i1.11885

Cited by 3 publications

(3 citation statements)

References 8 publications

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“…The crystal structure of calcium is based on the results of diffractogram analysis with HighScore Plus version 3.0.5 (Luthfiah et al, 2021). The success rate of diffractogram analysis in the Highscore Plus is indicated by the low value of the Goodness of Fit (GoF) parameter (Toby, 2006) after the refinement process using the Rietveld method (Haikal & Prasetyo, 2021). The particle size analysis of calcium crystals (D) was based on the results of the diffractogram with the Scherrer equation (Usman et al, 2020) in equation 2 below: with K = 0.9 (Scherrer's constant); λ = 0.154060 nm (wavelength of light source); B = FWHM (Full Width at Half Maximum) (radians); θ = Peak position (radians).…”

Section: Calcium Extractionmentioning

confidence: 99%

Calcium Extract Characterization from Rajungan Crab Shell (Portunus pelagicus) and Bakau Crab Shell (Scylla serrata) using Calcination as Effervescent

Usman¹,

Permana²,

Ardinsyah³

et al. 2022

J. Akademika Kimia

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One of the prevention of osteoporosis is by taking calcium supplements. Crab shells are calcium sources that can be processed into supplements. Calcium extraction used the calcinations method at 900°C temperature for 4 hours. After calcining the crab shell powder, it was analyzed by using XRD and processed with the Highscore Plus application by using Rietveld method. The best calcium crystals will be used as raw material for effervescent powder. The results showed that calcium crystals from rajungan crab shells contained 0.4% CaCO3 with a crystallite size of 25.9001 nm and 99.6% CaO with a crystallite size of 82.7183 nm with a GoF value of 1.69979. Calcium crystals produced from bakau crab shells were 100% CaO with a crystallite size of 77.3397 nm with a GoF value of 1.90266. Calcium crystals from bakau crab shells were used as effervescent raw materials with 2 different formulations. The results of the organoleptic test from both effervescents showed the same results, namely in the form of a pale yellow powder with a orange scent and sour taste The results of the dispersion time test showed that the 2 formulations had met the requirements with the dispersion time of formula 1 being 31.67 seconds and formula 2 being 32.33 seconds. The results of the water content test of the two formulas met the requirements with the water content of formula 1 being 0.071% and formula 2 being 0.067%.

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Section: Calcium Extractionmentioning

confidence: 99%

Calcium Extract Characterization from Rajungan Crab Shell (Portunus pelagicus) and Bakau Crab Shell (Scylla serrata) using Calcination as Effervescent

Usman¹,

Permana²,

Ardinsyah³

et al. 2022

J. Akademika Kimia

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“…SrBi4Ti4O15 is a four-layer Aurivillius compound with a band gap energy of 3.0 eV that has better photocatalytic activity in reducing CO2 gas than Bi4Ti3O12, TiO2, and BiOBr (Tu et al, 2019). In addition, Haikal and Prasetyo (2021) also reported that SrBi4Ti4O15 can degrade rhodamine B by 41.10% in 120 minutes.…”

Section: Introductionmentioning

confidence: 99%

Molten Salt Synthesis of Photocatalyst Material SrBi4Ti4O15 for Methylene Blue Degradation

Al-Abror

Hastuti

Prasetyo

2023

J. Rekayasa Kim. Lingkung.

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The four-layered Aurivillius SrBi4Ti4O15 compound has been reported to be potentially used as a photocatalyst material. In this research, SrBi4Ti4O15 was prepared by the molten salt method using NaCl/KCl and then used to degrade methylene blue. The analysis of sample diffractogram indicated that the SrBi4Ti4O15 was obtained but there was still the impurities of Bi4Ti3O12. The micrograph showed that particle shape of SrBi4Ti4O15 is plate-like (sheets) with a lot of agglomeration. The band gap energy of SrBi4Ti4O15 is 3.14 eV (394.85 nm), according to the Kubelka-Munk calculation from the spectrum of reflectance. The photocatalytic test results showed that SrBi4Ti4O15 degraded methylene blue to 47.8% in 120 minutes.

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“…One class of compounds reported to be used as photocatalyst materials are is Aurivillius structure. SrBi 4 Ti 4 O 15 compound is one of the four Aurivillius structure family that can be used as a photocatalyst with a band gap energy of 3.02 eV (410 nm) [3]. Decreasing the band gap energy will benefit its utilization as a photocatalyst material.…”

Section: Introductionmentioning

confidence: 99%

Eco-Friendly Synthesis and Characterization of SrBi4Ti3.9Fe0.1O15 via Molten Salt Method

Sholikhah,

Prasetyo

2023

Advances in Engineering Research

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One method of synthesizing metal oxide compounds is the molten salt method. This method is an environmentally friendly method because it does not produce waste from residual solvents and uses a lower temperature. In this research, the synthesis of the compound SrBi 4 Ti 3.9 Fe 0.1 O 15 was carried out via the molten salt method using different salt i.e. NaCl, KCl and NaCl-KCl. The sample diffractogram shows that the compound SrBi 4 Ti 3.9 Fe 0.1 O 15 which was synthesized using KCl and NaCl-KCl was successfully synthesized without any impurities. Meanwhile, the sample of SrBi 4 Ti 3.9 Fe 0.1 O 15 which was synthesized with NaCl was found impurity in the form of TiO 2 . The morphology of compounds synthesized using NaCl-KCl has a smaller size than compounds synthesized using salts of NaCl and KCl. The results of the calculation of the band gap energy show that the compound SrBi 4 Ti 3.9 Fe 0.1 O 15 has a band gap energy at range ∼ 2.31-2.21 eV.Keywords: SrBi 4 Ti 3.9 Fe 0.1 O 15 • molten salt method • Dopant Fe • morphology

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Uji Aktivitas Fotokatalis Senyawa Aurivillius Lapis EmpaT SrBi4Ti4O15 dalam Mendegradasi Rhodamine-B

Cited by 3 publications

References 8 publications

Calcium Extract Characterization from Rajungan Crab Shell (Portunus pelagicus) and Bakau Crab Shell (Scylla serrata) using Calcination as Effervescent

Calcium Extract Characterization from Rajungan Crab Shell (Portunus pelagicus) and Bakau Crab Shell (Scylla serrata) using Calcination as Effervescent

Molten Salt Synthesis of Photocatalyst Material SrBi4Ti4O15 for Methylene Blue Degradation

Eco-Friendly Synthesis and Characterization of SrBi4Ti3.9Fe0.1O15 via Molten Salt Method

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