Novel solid catalyst sulfonic acid functionalized carbonaceous material for biodiesel production

Abstract

A one-pot hydrothermal carbonization-sulfonation procedure was employed to develop robust, carbon-based solid catalyst sulfonic acid functionalized carbonaceous material (SAFACAM) possessing acidic functions up to 5.31 mmol g⁻¹ for the first time at 80 °C. With its atom-efficient, one-pot preparation from a plentiful natural biomass derivative (glucose), the current catalyst benefits the environment and has the potential to lower the overall cost of producing biodiesel by converting cheap raw materials. The diminishing supply of fossil fuels coupled with the polluting effects of their use is driving the quest for more sustainable sources of energy. The pursuit of producing biodiesel from affordable, non-edible oil has become progressively significant due to its dual benefits of sustainability and cost-efficiency. In this context, Jatropha curcas oil (JCO) has gained attention in the energy sector, as it holds promise as a viable feedstock for biodiesel manufacturing and a renewable energy solution for numerous nations. Additionally, the catalyst exhibited exceptional physical stability and reactivity throughout 5 consecutive cycles, establishing its potential as a highly promising catalyst for sustainable biodiesel manufacture.