Consumer Self-Identity, Emotions, Ethical Beliefs, and Authenticity about Ethical Purchasing of Consumer Goods for a Circular Economy Model

We examine how consumers' feelings of guilt and their ethical beliefs—precisely idealism and relativism—impact their purchasing decisions related to Greece's Circular Economy Model (CEM). By focusing on customer satisfaction and engagement, we aim to understand better how consumers interact with sustainable products within the circular economy, building upon Burke and Reitzes' (1981) Self-Identity Theory (SIT). Additionally, we explore how consumer authenticity influences the relationships between moral beliefs, guilt, and ethical purchasing behavior. A structured online questionnaire was distributed via Google Forms to address three research objectives. It included nine demographic and six structured questions. A convenience sample of 371 respondents from Athens, Thessaloniki, Patras, and Heraklion, consisting of Hellenic Open University students and coworkers buying eco-friendly products, participated. Statistical analysis tested seventeen research hypotheses, supporting eleven, rejecting five, and yielding inconclusive evidence for one. The study reveals a nonlinear positive association between ethical beliefs and three key factors: ethical purchasing behavior, purchase intention, and adopting sustainable consumer practices. Additionally, a linear positive relationship exists among adopting sustainable consumer behaviors, ethical purchasing behavior, and ethical purchase intention. The connections between ethical beliefs and the adoption of sustainable consumer practices, as well as those between ethical beliefs and ethical purchase intention, are influenced by consumer authenticity. The findings of this study have critical theoretical, research, managerial, and practical implications for academics and marketing managers, supporting the initial assumptions

Olefins from Biomass Intermediates: A Review

Over the last decade, increasing demand for olefins and their valuable products has prompted research on novel processes and technologies for their selective production. As olefins are predominately dependent on fossil resources, their production is limited by the finite reserves and the associated economic and environmental concerns. The need for alternative routes for olefin production is imperative in order to meet the exceedingly high demand, worldwide. Biomass is considered a promising alternative feedstock that can be converted into the valuable olefins, among other chemicals and fuels. Through processes such as fermentation, gasification, cracking and deoxygenation, biomass derivatives can be effectively converted into C2–C4 olefins. This short review focuses on the conversion of biomass-derived oxygenates into the most valuable olefins, e.g., ethylene, propylene, and butadiene

One-step propylene formation from bio-glycerol over molybdena-based catalysts

A novel one-step process is explored for glycerol conversion to propene, over molybdena-based catalysts. Through hydro-deoxygenation reactions, glycerol is converted to 2-propenol, which is subsequently hydrogenated to form propene.</p