Simultaneous H₂ evolution and biomass valorization under visible light. production of at a rate 36 μmol h⁻¹ m⁻² 38.4% DFF yield (>99% selectivity) after 48 h.

In this study, we report the synthesis of a metal-free truxene-based conjugated microporous polymer (Tx-CMP) and demonstrate its heterogeneous photocatalytic applications under direct sunlight. We employed Tx-CMP for oxidative homocoupling amines. This model reaction describes an effective way to harvest natural sunlight effectively organic transformations. High conversion selectivity have been demonstrated with recyclability at least five times without any decrease in catalytic activity

Abstract Selective traditional oxidation of toluene to high‐value products like benzyl alcohol, benzaldehyde, and benzoic acid faces significant challenges due high dissociation energy requirements, harsh reaction conditions, complex product distributions. While photocatalysis using O 2 as an oxidant offers a green alternative, developing efficient durable photocatalysts for selective in both batch flow systems remains challenging. Here, sulfur‐doped polymeric carbon nitride (S‐CN) is...

A plausible reaction mechanism for photocatalytic hydrogen production by employing a ZnIn₂S₄/g-C₃N₄@Ni(OH)₂ heterojunction photocatalyst under visible light irradiation.

Carbon-free solar fuel production driven by artificial photosynthesis over heptazine–porphyrin-based polymeric network as photocatalyst.

Solar-H2O2 production presents an eco-friendly and sustainable strategy over the existing anthraquinone process. The present photocatalytic systems suffer from low two-electron oxygen reduction reaction (ORR) selectivity. current study reports easy approach to produce a true oxygen-bridged heptazine polymer with periodic arrangement of atoms (CNO) by introducing C–O–C bridging species through right precursor selection. in CNO dramatically promotes ORR compared benchmark carbon nitride...

Renewable solar light-driven biomass furfural valorization.

Herein, room-temperature discotic liquid crystals based on heptazine, an electron deficient central core, are reported for the first time. Mesomorphic behaviors of materials also investigated. Supramolecular assembly mesophase derivatives were confirmed by X-ray scattering experiments. Heptazine-based solid thin films strong blue light emitters, whereas in solution state, they weakly emissive or non-emissive. The band gap energy is found to be low this class compounds. Formation mesophases,...

Among photocatalytic semiconductors, minimization of recombination rate photogenerated charge carriers to enhance their utilization via band structure engineering would be an effective approach for the enhanced activity. In this context, hexagonal phase O-deficient tungsten oxide (WO3–x) nanorods with modified have been synthesized a facile hydrothermal method. An in situ 1D–2D heterogeneous interface has created using as-synthesized WO3–x carbon nitride (g-CN) nanosheets. Photoluminescence...

A p-n heterojunction based Ni 3 V 2 O 8 @g-CN nanocomposite acts as photocatalyst for selective activation of inert C(sp )–H bonds cyclohexane to form KA-oil.

Hybrid halide perovskites (HHPs), whose every branch generates intrusiveness, have been utilized in solar cells from a broader perspective. However, the inclusiveness of employing HHP as photocatalyst is its initial stage. This study mainly focuses on unexpected utilization of, so far, undesirable material vacancy-ordered MA2SnBr6 quantum dots synthesized MASnBr3 nanosheets. Here, confinement grounded large blue shift ultraviolet (UV) and photoluminescence (PL) spectra with Stokes 420 meV,...

Polymeric carbon nitride (CN) has emerged as a promising photoanodic material in water‐splitting photoelectrochemical cells (PEC). However, the current deposition methods of CN layers on substrates usually include long heating process at 500−550 °C, which might cause sublimation or decomposition monomers and destruction substrate, leading to nonuniform film. Herein, simple, fast, scalable energy‐economic procedure synthesize homogenous films is introduced. The predesigned film subjected for...

The development of large-scale, binder-free photocatalyst panels, resembling solar is highly appealing, which, along with efficient light management and easy recycling, offers great simplicity by configuring them in a flow-reactor. Here, we report facile scalable method for flat porous melon-type polymeric carbon nitride (CN) panels tunable structural photophysical properties. CN panel exhibits good photoactivity homemade bench-scale reactor several important catalytic reactions: the...

Unleashing the power of light, current study demonstrates complete harvesting a biomass-derived lignin model substrate into simultaneous generation value-added chemicals and carbon-free solar fuel in more sustainable way. Here, C–C bond cleavage selectivity 91% with 67% conversion rate was achieved for first time along hydrogen peroxide (H2O2) using oxygen-linked polymeric heptazine (CNO) as catalyst compared to melamine-derived carbon nitride (CNM). The porous CNO exhibits low emission...

Metal-free organic polymer photocatalysts have attracted dramatic attention in the field of visible light-induced hydrogen evolution reaction (HER). Herein, we showed a polymeric O-linked heptazine (OLHP) decorated with S, N co-doped graphene quantum dots (S,N-GQDs) as photosensitizer to generate upon dot sensitization. Both these heptazine-based systems show effective photosensitization strong π-π interactions and enhanced photocatalytic H2 generation (24 times) metal-free systems....

Abstract A heptazine‐based microporous polymeric network, HMP‐TAPA was synthesised by direct coupling of trichloroheptazine and tris(4‐aminophenyl)amine (TAPA). high surface area 424 m 2 /g achieved, which is the highest among networks (HMPs). The tailored electron‐donor ‐acceptor units in give broad visible‐light absorption. employed as metal‐free photocatalyst for oxidative amines to imines under visible light irradiation with 98 % selectivity. Furthermore, basicity used achieve...

Abstract Polymeric carbon nitrides (CN) have gained significant interest as photoanodes in photoelectrochemical cells (PEC). A widely researched approach for synthesizing CN films with controlled optical and properties relies on using supramolecular assemblies the precursors thermal polymerization over a transparent conductive substrate. However, formation of is highly dependent temperature solubility given solvent, limiting full potential this method. Moreover, intercalation metal ions...

Ingenious approach for better photocatalytic system is to fabricate p-n heterojunctions that enhance charge separation at the interface leading higher activity. Herein, a robust visible light active photocatalyst i.e. Ni3V2O8@g-CN (NVO@g-CN), as heterojunction have been successfully reported selective oxidation of cyclohexane under mild reaction conditions. Among all composites, NVO-1@g-CN produced cyclohexanone with 93.4 % selectivity. The plausible photooxidation mechanism was validated by...