Polymeric carbon nitride (C3N4) has attracted great attention in photocatalysis due to its low-cost, visible-light response, and environment-friendly merits. However, the catalytic efficiency of pristine bulk C3N4 is severely limited by poor photoinduced electron/hole pair separation interlayer charge transport. Herein, single-atom Cu bridged into sheet interlayers through thermal condensation self-assembly supramolecules precursors melamine–cyanuric acid monomers. Simultaneously, N...

Point-of-use (POU) devices with satisfying mercury (Hg) removal performance are urgently needed for public health and yet scarcely reported. In this study, a thiol-laced metal–organic framework (MOF)-based sponge monolith (TLMSM) has been investigated Hg(II) as the POU device its benchmark application. The resulting TLMSM was characterized by remarkable chemical resistance, mechanical stability, hydroscopicity (>2100 wt %). Importantly, exhibited high adsorption capacity (∼954.7 mg g–1),...

Abstract Electronic structure modulation of active sites is critical important in Fenton catalysis as it offers a promising strategy for boosting H 2 O activation. However, efficient generation hydroxyl radicals (•OH) often limited to the unoptimized coordination environment sites. Herein, we report rational design and synthesis iron oxyfluoride (FeOF), whose strongly coordinate with most electronegative fluorine atoms characteristic moiety F-(Fe(III)O 3 )-F, effective activation potent •OH...

Mercury (Hg) removal is crucial to the safety of water resources, yet it lacks an effective technology, especially for emergency on-site remediation. Herein, multilayered oxygen-functionalized Ti3C2 (Ti3C2Ox) (abbreviated as M-Ti3C2) nanosheets were prepared remove Hg(II) from water. The M-Ti3C2 has demonstrated ultrafast adsorption kinetics (the concentration decreased 10 400 33 μg L–1 in s), impressively high capacity (4806 mg g–1), selectivity, and broad working pH range (3–12). density...

An understanding of the impacts regarding different phases inorganic materials on heavy metal removal is indispensable, owing to intrinsic structure that can affect its properties. In this study, distinct adsorption behaviors metals (Pb(II) and Cu(II)) MoS2 (metallic phase (1T) semiconducting (2H)) were theoretically experimentally investigated. According computational results, both Pb(II) Cu(II) have formed more stable complexes 1T-MoS2 compared those 2H-MoS2 due lower energy (Ead). This...

Adsorption is widely applied in both potable and municipal or industrial wastewater treatments process. Nanomaterial adsorbents (NAs) have emerged as efficient candidates to remove toxic metals from water. However, scalable application of NAs beyond bench-scale material discovery translation full scale deployment has been limited but essential realize the potential offer for environmental remediation. In this critical review, we summarize, discuss, compare various NA synthesis methods assess...

Manipulating high-valent cobalt-oxo [Co(IV)═O] species in a catalytic system is pivotal; however, it challenging due to the inefficiency and unsustainability of Co(IV)═O generation. In this study, we fabricated macroscopic porous Co/N codoped carbon beads (Co–NC) identified as prominent peroxymonosulfate (PMS) activation. Specifically, on Co–NC-900/PMS was regarded crucial driver tetracycline (TC) removal (with degradation efficiency 97.3% an initial concentration 20 mg L–1) through...

Abstract Addressing burdens of electronic waste (E-waste) leachate while achieving sustainable and selective recovery noble metals, such as gold, is highly demanded due to its limited supply escalating prices. Here we demonstrate an environmentally-benign practical approach for gold from E-waste using alginate-derived pyrocarbon sorbent. The sorbent demonstrates potent performance compared most previously reported advanced sorbents, showcasing high capacity 2829.7 mg g −1 , efficiency...

Site density and turnover frequency are the two fundamental kinetic descriptors that determine oxygen reduction activity of iron-nitrogen-carbon (Fe-N-C) catalysts. However, it remains a grand challenge to simultaneously optimize these parameters in single Fe-N-C catalyst. Here we show treating typical catalyst with ammonium iodine (NH4I) vapor via one-step chemical deposition process not only increases surface area porosity (and thus enhanced exposure active sites) etching effect in-situ...

Abstract Ru as a cocatalyst has attracted wide attention substitute for Pt precious metal. However, the strong interaction between and H atoms reduces efficiency of hydrogen (H 2 ) desorption slows overall evolution reaction (HER) efficiency. How to further improve Ru‐based is challenging. Herein, single‐atom Co‐ultrafine RuO x clusters codecorated TiO nanosheets photocatalytic HER are synthesized using simple hydrothermal–calcination method. Experiments theoretical calculations demonstrate...

In this study, we address the challenge of screening resins and optimizing operation conditions for removal 43 perfluoroalkyl polyfluoroalkyl substances (PFASs), spanning both long- short-chain fluorocarbon variants, across diverse water matrices, using machine learning (ML) models. We first develop ML models that can accurately predict efficiency PFASs based on resin properties, conditions, matrix. The model performance is validated by a test set our own experimental tests. key features...

The design of selective sorption sites for per- and polyfluoroalkyl substance (PFAS) removal, integrated with efficient regenerative strategies, remains a critical yet underexplored challenge. While existing technologies prioritize adsorption capacity over sustainability, we engineered fluorinated hydrogel tailored fluorous binding to target PFAS via their hydrophobic C-F termini. This achieved 90% removal efficiency in real water matrices (e.g., tap lake water), at environmentally relevant...

The valorization of Chinese medicine residues (CMRs) into high-value-added products, such as microcrystalline cellulose (MCC), has garnered significant interest in the current post-pandemic era, particularly regions where (CM) is widely utilized (i.e., Southeast Asia). In this study, we propose a facile and economical protocol for selectively extracting MCC from CMRs via one-step direct peroxymonosulfate (PMS) oxidation without need intricate steps. Importantly, our proposed been verified to...

Site density and turnover frequency are the two fundamental kinetic descriptors that determine oxygen reduction activity of iron‐nitrogen‐carbon (Fe−N−C) catalysts. However, it remains a grand challenge to simultaneously optimize these parameters in single Fe−N−C catalyst. Here we show treating typical catalyst with ammonium iodine (NH4I) vapor via one‐step chemical deposition process not only increases surface area porosity (and thus enhanced exposure active sites) etching effect in‐situ...

Nanobubbles (NBs) have been utilized to enhance the removal of perfluoroalkyl and polyfluoroalkyl substances (PFAS) from water. However, effectiveness NBs under various operational conditions, including varying PFAS concentrations, pH levels, presence coexisting ions, has remained insufficiently explored. A deeper understanding these interfacial interactions is crucial optimizing maximizing efficiency in removal. This study aims bridge knowledge gaps by systematically exploring role...