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Eco-friendly lake pigment from sappanwood: Adsorption study and its application as natural colorant for natural rubber toy balloon |
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| รหัสดีโอไอ | |
| Creator | Jitnapa SIRIRAK |
| Title | Eco-friendly lake pigment from sappanwood: Adsorption study and its application as natural colorant for natural rubber toy balloon |
| Contributor | Ployphat SUPPHARATTHANYA, Kedsarin CHANTHA, Sutinee GIRDTHEP, Supanee CHAYABUTRA |
| Publisher | Metallurgy and Materials Science Research Institute Chulalongkorn University |
| Publication Year | 2564 |
| Journal Title | Journal of Metals, Materials and Minerals |
| Journal Vol. | 31 |
| Journal No. | 2 |
| Page no. | 27-37 |
| Keyword | Sappanwood, lake pigment, adsorption, natural colorant, Toy balloon |
| ISSN | 8576149 |
| Abstract | Due to the awareness of the impact of synthetic dye on human health and the environment, natural dye and lake pigment have attracted considerable attention from researcher. Herein, pink_red lakeสpigment from sappanwood was prepared using adsorption approach. The effects of initial pH, pH andconcentration of brazilein solution, dosage of aluminium hydroxide, and adsorption time on adsorptionสwere also explored. Results showed that the maximum adsorption capacity of 30 mgสg-1สwas achievedสwhen 0.25%w/v of aluminium hydroxide and 100 mgสL-1สof brazilein solution were applied. The adsorptionสkinetics and adsorption isotherm fitted the pseudo second order model and Langmuir isotherm, respectively. Additionally, this lake pigment can be utilized as a natural colorant for natural rubber toy balloons, which could made toy balloon safer for children than synthetic dye. Thus, our lake pigment can be an alternative choice of safe and environmental friendly colorant for products including toys. |
