A5024960303- Advanced Photocatalysis Techniques
- TiO2 Photocatalysis and Solar Cells
- Gas Sensing Nanomaterials and Sensors
- Perovskite Materials and Applications
- Advanced battery technologies research
- Electrocatalysts for Energy Conversion
- Ga2O3 and related materials
- Copper-based nanomaterials and applications
- Covalent Organic Framework Applications
- Advanced Memory and Neural Computing
- ZnO doping and properties
- Electronic and Structural Properties of Oxides
- Catalytic Processes in Materials Science
- Advanced Nanomaterials in Catalysis
- Analytical Chemistry and Sensors
- Caching and Content Delivery
- Nanoplatforms for cancer theranostics
- Electrochemical Analysis and Applications
- Quantum Dots Synthesis And Properties
- Micro and Nano Robotics
- Aerogels and thermal insulation
- Electrophoretic Deposition in Materials Science
- Hydrogels: synthesis, properties, applications
- Catalysis and Oxidation Reactions
- Ammonia Synthesis and Nitrogen Reduction
Southeast University
2021-2025
University College London
2015-2021
University College Lahore
2020
Transnational Press London
2017-2020
Torrington Hospital
2017
Efficient visible light driven water splitting on a covalent triazine-based framework with controlled degree of conjugation.
A linker-controlled strategy has been demonstrated to synthesize polymeric photocatalysts for efficient H<sub>2</sub> evolution by UV-Vis-IR with benchmark quantum yields.
Abstract The bandgap engineering of semiconductors, in particular low‐cost organic/polymeric photocatalysts could directly influence their behavior visible photon harvesting. However, an effective and rational pathway to stepwise change the photocatalyst is still very challenging. An efficient strategy demonstrated tailor from 2.7 eV 1.9 organic by carefully manipulating linker/terminal atoms chains via innovatively designed polymerization. These polymers work a stable manner for both H 2 O...
Covalent triazine-based frameworks (CTFs), a group of semiconductive polymers, have been identified for photocatalytic water splitting recently. Their adjustable band gap and facile processing offer great potential discovery development. Here, we present series CTF-0 materials fabricated by two different approaches, microwave-assisted synthesis an ionothermal method, driven visible-light irradiation. The material (CTF-0-M2) synthesized microwave technology shows high activity hydrogen...
Graphitic carbon nitride (g-C3N4) is a robust organic semiconductor photocatalyst with proven H2 evolution ability. However, its application in photoelectrochemical system as photocathode for production extremely challenging the majority of reports representing it photoanode. Despite research into constructing g-C3N4 photocathodes recent years, factors affecting an n-type semiconductor's properties are still not well-understood. The current work demonstrates effective strategy to transform...
A ternary heterostructure Ru/RuO<sub>2</sub>/g-C<sub>3</sub>N<sub>4</sub>was designed for ammonia photosynthesis under visible light irradiation, which exhibited 6 times higher activity with excellent stability than the pristine g-C<sub>3</sub>N<sub>4</sub>.
Abstract Conventional buildings consume about 40% of global energy, smart window technologies have been developed for sunlight modulation and energy management. Most current windows change from transparent to opaque as the temperature rises, which is detrimental indoor lighting at daytime or privacy protection night. In this work, a versatile thermochromic hydrogel system by introducing sodium dodecyl sulfate (SDS) micelles into crosslinked copolymer hydrophilic acrylamide hydrophobic...
Photo-assisted ion batteries utilize light to boost capacity but face cycling instability due complex charge/ion transfer under illumination. This study identified photo-induced proton (photo-induced PT) as a significant process in photo-(dis)charging of widely-used V
Direct photosynthesis of hydrogen peroxide (H2O2) from water and oxygen represents an intriguing alternative to the current indirect process involving reduction oxidation quinones. However, limited light utilization sluggish charge transfer largely impede overall photocatalytic efficiency. Herein, we present a heavily doped carbon nitride (CNKLi) nanocrystal for efficient selective photoproduction H2O2 via two-electron reaction (ORR) pathway. CNKLi induces metal-to-ligand (MLCT) electron...
A metal-free photoanode nanojunction architecture, composed of B-doped carbon nitride nanolayer and bulk nitride, was fabricated by a one-step approach. This type (s-BCN) overcomes few intrinsic drawbacks film (severe charge recombination slow transfer). The top layer the has depth ca. 100 nm bottom is 900 nm. results into 10-fold higher photocurrent than graphitic (G-CN) photoanode, with record density 103.2 μA cm-2 at 1.23 V vs. RHE under one sun irradiation an extremely high incident...
The metal-free semiconductor, graphitic carbon nitride (g-C3N4), was introduced into RAFT polymerization for the first time. production of linear polyacrylate and polyacrylamide has been achieved via PET-RAFT using g-C3N4 as a photoactive organocatalyst without prior deoxygenation. resulting polymers display controlled molecular weights, narrow polymer dispersities, high end-group fidelity exemplified by 1H NMR analysis, MALDI-TOF-MS measurement, chain extension experiment. Temporal control...
Abstract Hydrogel actuators have shown great promise in underwater robotic applications as they can generate controllable shape transformations upon stimulation due to their ability absorb and release water reversibly. Herein, a photoresponsive anisotropic hydrogel actuator is developed from poly(N‐isopropylacrylamide) (PNIPAM) gold‐decorated carbon nitride (Au/g‐C 3 N 4 ) nanoparticles. Carbon nanoparticles endow with photocatalytic properties, while reorientation mobility driven by the...
We investigated the relationship between crystallinity, deep trap states and PEC performance of g-C3N4 photoelectrodes. Long-lived charge carriers were present in more poorly crystalline samples, due to deeper states, which inversely correlated with photoelectrochemical performance. The diffusion length a compact film was determined be ca. 1000 nm.
Solar rechargeable zinc-air battery is a promising approach for capturing and storing intermittent solar energy through photoelectrochemical reactions. However, unassisted photo-charging of batteries challenging due to suboptimal carrier accumulation on photoelectrodes, resulting in sluggish reaction kinetics. Here, achieved by investigating anisotropic photogenerated charge separation series representative semiconductors (ZnIn2 S4 , TiO2 In2 O3 ), among which the exceptional ZnIn2...
Abstract Photo‐assisted ion batteries demonstrate remarkable potential for portable and decentralized solar energy utilization, due to their profound capacity enhancement under irradiation accompanied by promoted discharge voltages. However, in practice are highly compact with limited surface area irradiation. Overcoming the size limit is a challenge. Herein, an spillover effect photo‐assisted demonstrated, that impact of on battery not restrained within irradiated but can whole electrode....