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Waste-Derived Catalysts
Original title: Waste‐Derived Catalysts
Summary
Scientists can turn everyday trash—like crop leftovers, plastic waste, and old electronics—into tools that clean up polluted water and air by breaking down harmful chemicals. This review paper summarizes how these "waste-derived catalysts" work and why they're a win-win: they tackle pollution (including the kind that can end up in our water and food) while also reducing landfill waste. While promising, the technology still needs work to become more reliable and scalable before it can be widely used to protect our health and environment.
Environmental remediation has become necessary due to the escalating pollution from varied sources especially industrial, agricultural and urban. In this context, waste-derived catalysts offer both a sustainable and cost-effective approach for accelerating remediation processes while at the same time addressing global waste management challenges. These catalysts are synthesized from a broad range of solid waste materials. They include agricultural biomass, plastic waste, electronic waste and industrial effluents. Their intrinsic characteristics consist of high porosity, large surface area, and diverse active sites. These features essentially make them particularly effective in various catalytic applications, including wastewater treatment, air purification and the degradation of hazardous organic and inorganic pollutants. The use of waste as raw material aligns with circular economy principles, promoting resource recovery and a sustainable environment. This chapter provides an overview of the synthesis techniques, functional properties, and environmental applications of waste-derived catalysts. It also highlights the current challenges, such as performance variability and scalability, and offers insight into future research directions. Ultimately, waste-derived catalysts represent a promising strategy to bridge the gap between effective environmental remediation and sustainable materials engineering.