Jihuai Tan

Over 90 million tonnes of textile waste are generated annually, yet its blended composition and chemical finishes limit conventional recycling. Here, cellulose‐rich textile waste was converted into aromatic hydrocarbons by ZSM‐5‐catalyzed hydropyrolysis, which promoted deoxygenation and aromatization of textile‐derived vapors. Across four real textile wastes, the process delivered aromatic hydrocarbon yields of 41.0%–56.0% with selectivity above 95%. A coupled LCA and TEA, built on an Aspen Plus process model, gave a cradle‐to‐gate GWP of 0.73 kg CO ₂ ‐eq kg ⁻¹ aromatics with gray hydrogen (37% lower than fossil‐based) and 0.59 kg CO ₂ ‐eq kg ⁻¹ with green hydrogen. The gray‐hydrogen route gave an MSP of US$0.68 kg ⁻¹ , competitive with commercial mixed aromatics. These results show that hydrogen provenance governs the carbon footprint, whereas hydrogen price governs production cost, identifying low‐cost low‐carbon hydrogen as the decisive lever for scalable textile‐waste‐to‐aromatics conversion.

Functional coatings are crucial for enhancing the performance of paper-based packaging materials. Unlike petroleum-based or conventional biobased coatings, which face environmental or performance limitations, this study presents a high-performance, sustainable paper coating that utilizes industrial byproduct pomegranate peel extract (PPe), KH-560, and oxidized starch (OS). A biobased silane coupling agent (PK) was synthesized via a ring-opening reaction between PPe and KH-560, as confirmed by FT-IR, ¹H NMR, and ¹³C NMR analyses. The resulting PK was compounded with OS to create a multifunctional coating (OS&PK). This coating endows paper with exceptional mechanical strength, outstanding barrier properties (against water, vapor, and oil), high thermal stability (>200 °C), and significant antibacterial activity (77% inhibition against S. aureus). Remarkably, the coating can be effectively removed, enabling paper repulping with minimal mechanical strength loss. Thus, this work offers a green, cost-effective coating strategy that combines enhanced performance with repulpability, while promoting the valorization of industrial byproducts.

Gemini-type imidazoline quaternary ammonium salt is a new type of environmentally friendly corrosion inhibitor has been widely used in engineering materials. However, most of them are hazardous/toxic compounds derived from petroleum-based products, which did harm to environment. In this work, an environmentally friendly Gemini-shaped imidazoline quaternary ammonium salt corrosion inhibitor (G211) was synthesized using cheap fatty acid recycled from dimer acid industry as feedstock. The corrosion inhibition effects of G211 on Q235 steel in 1 M HCl solution were investigated through weight loss experiments, potential polarization curves, and alternating current impedance spectroscopy experiments. The results show that the inhibition rate of G211 as a mixed-type inhibitor is up to 94.4% and the concentration drop as low as 500 ppm at 25 ℃. The adsorption of G211 on Q235 surface follows Langmuir adsorption isothermal curve. The chemical composition of the Q235 steel surface was analyzed through scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). Furthermore, the possible corrosion inhibition mechanism of G211 on the surface of Q235 steel is proposed. This article not only presents an outstanding solution for safeguarding Q235 steel against corrosion but also introduces a feasible method for high-value utilization of monomer acid (MA).