Synthesis and Characterization of CaO Limestone from Lintau Buo Supported by TiO&lt;sub&gt;2&lt;/sub&gt; as a Heterogeneous Catalyst in the Production of Biodiesel

Sisca, Vivi; Deska, Aju; Syukri, Syukri; Zilfa, Zilfa; Jamarun, Novesar

doi:10.22146/ijc.64675

Cited by 6 publications

(2 citation statements)

References 39 publications

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“…These results indicate that the mixing of TiO2/ZnO with a composition of 25:75 showed no significant difference with the concentration of TiO2/ZnO in the mixture, which means that there is no chemical interaction. The concentration of TiO2 rutile was not significantly different from previous research (Sisca et al, 2021;Miklečić et al, 2015).…”

Section: Xrf Analysis Of Pigmentscontrasting

confidence: 82%

Characterization and Application of TiO2/ZnO Nanoparticles as Pigments in Matt-Type Water-Based Paint

Isfa¹,

Jamarun²,

Emriadi³

et al. 2023

IJTech

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This study investigates the characteristics of TiO2/ZnO nanoparticles and the application of TiO2/ZnO in matt-type water-based paint as a pigment. This study aims to determine the quality of TiO2-ZnO pigments in water-based paints in terms of whiteness, hiding power, dispersibility, and gloss. Matt-type water-based paint has been made by mixing water and additives substances in a high-speed mixer to result in a mill base paste, which is mixed with the pigment of TiO2/ZnO (25:75), CaCO3 filler, water, and additives, then filtered and mixed again with the C-817 binder. The characterization results showed that TiO2/ZnO nanoparticles contained TiO2 of 18.62% and ZnO of 77.49%, with an average particle diameter of 151.54 nm. TiO2/ZnO has a crystal size of 28.4 nm and a crystallinity degree of 72.3%. The application of TiO2/ZnO nanoparticles as a pigment in matt-type water-based paint resulted in good dispersion and hiding power and achieved whiteness of 82.2 and gloss at 60° of 2.00 better than TiO2 of 81.8 and gloss at 60° of 1.77.

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Section: Xrf Analysis Of Pigmentscontrasting

confidence: 82%

Characterization and Application of TiO2/ZnO Nanoparticles as Pigments in Matt-Type Water-Based Paint

Isfa¹,

Jamarun²,

Emriadi³

et al. 2023

IJTech

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“…Naturally, CaO is obtained from several materials containing CaCO 3, such as eggshells [Kasirajan et al, 2022], mollusk shells [Thakur et al, 2021], and limestone [Sisca et al, 2021]. Green mussel is one of the shellfish consumed by Indonesians.…”

Section: Introductionmentioning

confidence: 99%

Modification of Calcium Oxide from Green Mussel Shell with Iron Oxide as a Potential Adsorbent for the Removal of Iron and Manganese Ions from Acid Mine Drainage

Purwaningrum¹,

Hasanudin²,

Rachmat³

et al. 2022

J. Ecol. Eng.

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Acid mine drainage (AMD) has the characteristics of high heavy metal ion content and low pH. This study aimed to synthesize the CaO/Fe 3 O 4 composite for the adsorption of iron and manganese ions from acid mine drainage. CaO was synthesized from the shells of green mussels (Perna viridis). The CaO/Fe 3 O 4 composites were characterized using XRD, BET surface area, SEM-EDS, and VSM. The functional groups of the composite before and after adsorption were analyzed using FTIR. The adsorption of Fe(II), Fe(III), and Mn(II) ions was carried out with the batch method to determine the effect of pH, contact time, and initial concentration of metal ions. The CaO/Fe 3 O 4 composite has magnetic properties, as indicated by the saturation magnetization value of 65.49 emu/g. The Langmuir and Freundlich isotherm models were used to describe the adsorption isotherm of the composite for Fe(II), Fe(III), and Mn(II) ions. Investigations were also conducted on adsorption kinetics, including pseudo-first-order and pseudo-second-order, as well as adsorption thermodynamics comprising free energy, enthalpy, and entropy. Pseudofirst-order and Langmuir isotherms are suitable to describe the adsorption of Fe(II), Fe(III), and Mn(II) ions with adsorption capacities of Fe(III) > Fe(II) > Mn(II). Moreover, the adsorption of all ions using the composite occurred spontaneously. The removal effectiveness for Fe and Mn ions from AMD using CaO/Fe 3 O 4 composite, reached 90.41 and 97.59%, respectively, in volume 100 mL AMD, composite mass 0.4 g, and a contact time of 60 minutes.

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Organic modification of precipitated calcium carbonate nanoparticles as filler in LLDPE/CNR blends with the presence of coupling agents: impact strength, thermal, and morphology

Ritonga

Jamarun

Arief

et al. 2022

Journal of Materials Research and Technology

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Synthesis and Characterization of CaO Limestone from Lintau Buo Supported by TiO<sub>2</sub> as a Heterogeneous Catalyst in the Production of Biodiesel

Cited by 6 publications

References 39 publications

Characterization and Application of TiO2/ZnO Nanoparticles as Pigments in Matt-Type Water-Based Paint

Characterization and Application of TiO2/ZnO Nanoparticles as Pigments in Matt-Type Water-Based Paint

Modification of Calcium Oxide from Green Mussel Shell with Iron Oxide as a Potential Adsorbent for the Removal of Iron and Manganese Ions from Acid Mine Drainage

Organic modification of precipitated calcium carbonate nanoparticles as filler in LLDPE/CNR blends with the presence of coupling agents: impact strength, thermal, and morphology

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