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CHEESA: Chemical Engineering Research Articles
Published by Universitas PGRI Madiun
ISSN : 26148757     EISSN : 26152347     DOI : -
Core Subject : Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Chemistry
CHEESA: Chemical Engineering Research Articles is scientific journal that publishes articles in the field of Chemical Engineering, Organic Chemistry, Inorganic Chemistry, Analytical Chemistry, Biochemistry, and Physical Chemistry. It is a journal to encourage research publication to research scholars, academicians, professionals and student engaged in their respective field. Author can submit manuscript by doing online submission. Author should prepare their manuscript to the instructions given in Author Guidelines before doing online submission. Template of article can be download in right sidebar. All submissions will be reviewed and evaluated based on originality, technical research, and relevance to journal contributions. Chemical Engineering Research Articles is published by Universitas PGRI Madiun on June and December.
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Articles 2 Documents
 1 
Search results for , issue "Vol. 8 No. 2 (2025): In Progress" : 2 Documents clear
Crescentia cujete L. Extract as an Substitution Alternative of Oxybenzone in Sunscreen Cream Martha, Rahma Diyan; Tilarso, Dara Pranidya; 'Aini, Febriana Devi Nur; Yulindasari, Armita Regina Putri; Parbuntary, Hesty
CHEESA: Chemical Engineering Research Articles Vol. 8 No. 2 (2025): In Progress
Publisher : Universitas PGRI Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/cheesa.v8i2.23034.63-75

Abstract

The use of natural ingredients in sunscreen products is increasingly developed due to safety and eco-friendliness compared to synthetic agents. Therefore, this study aimed to evaluate the physical properties and SPF values of cream formulations containing leaf and fruit extract of Crescentia cujete L. The experimental method included cream formulation, SPF evaluation in vitro using UV-Vis spectrophotometry, and physical quality testing comprising organoleptic, homogeneity, emulsion type, spreadability, adhesion, pH, and viscosity. The results showed that formulation with leaf extract had the highest SPF value of 15.60 (medium protection category), indicating the potential of Crescentia cujete L. leaf as active ingredient in herbal-based sunscreen cream.
Effect of Flow Rate on Hexavalent Chromium Reduction in Electroplating Wastewater Using TiO2 Immobilized Resin Darmawan, Arya; Okik Hendriyanto Cahyonugroho; Pachwarya, Ram Babu
CHEESA: Chemical Engineering Research Articles Vol. 8 No. 2 (2025): In Progress
Publisher : Universitas PGRI Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/cheesa.v8i2.23102.76-85

Abstract

This study aims to analyze the effect of flow rate on the reduction of hexavalent chromium (Cr6+) in electroplating wastewater treated with a TiO2-immobilized resin in a continuous fixed-bed reactor. The electroplating wastewater, characterized by Cr6+, was treated with RIPT-TiO2 functioning as a catalyst to enhance the contaminant degradation process. The flow rate was then examined to observe the effect on the reduction of Cr6+ concentration during the reaction. The results showed that increasing the flow rate within the range of 40–70 mL/min affected the reduction of Cr6+, and ultimately influenced the photocatalytic efficiency. The flow rate affected the contact time between the wastewater and the catalyst. The best removal efficiency, reaching 50.83% at 180 minutes, was obtained at a lower flow rate. This study provides important contributions to the development of sustainable and efficient electroplating wastewater treatment technology using a continuous reactor system with a TiO2-immobilized resin.

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