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Hawkar Ahmed

As seen in: Nature, Wiley Online Library, Yle.fi
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Articles

Carbon Quantum Dots-Decorated Mn 0.5 Cd 0.5 S/BiOBr S-Scheme Heterojunction With Interfacial Bi─S Bonding as an Efficient Piezocatalyst for Aqueous Cr(VI) Reduction

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By Hawkar Ahmed, Omid Amiri, Darya Shorsh Hamad
| Wiley Online Library Verified
Conflicts of Interest The authors declare no conflicts of interest. Data Availability Statement The data that support the findings of this study are available from the corresponding author upon reasonable request. Supporting Information Filename Description ppsc70141-sup-0001-SuppMat.docx78 KB Supporting File: ppsc70141-sup-0001-SuppMat.docx.
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Tuning the optical band gap of polyvinyl alcohol via aqueous nitrogen-doped carbon dots: a sustainable nanocomposite approach

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By Hawkar Ahmed, Farouq Hawaiz, Kawan F. Kayani, Rebar T. Abdulwahid, Shujahadeen B. Aziz, Sewara J. Mohammed, Darya Sh. Hamad, Othman K. Hamaamin, Faiq H. S. Hussain, Aso Q. Hassan
| Nature Verified
Abstract Polyvinyl alcohol (PVA) is a transparent, biocompatible, low-cost polymer with excellent film-forming capability, yet its wide intrinsic optical band gap restricts its use in optoelectronic systems. Here, a simple and sustainable method is reported to tailor the optical properties of PVA by incorporating aqueous nitrogen-doped carbon dots (ANCDs). These ANCDs were produced via a one-step hydrothermal route using 4-aminoantipyrine as the sole precursor.
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MOT seurasi lähettimillä kierrätyslaatikkoon laitettuja vaatteita Afrikkaan ja Aasiaan asti - tutkija laski vaaterallille hiilijalanjäljen

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By Minna Knus-Galán, Riikka Kurki, Liselott Lindström Verified, Jessica Stolzmann, Janne Järvinen, Hanna Nordenswan, Taisto Lapila, Hanna Takala, Jouni Soikkeli, Hawkar Ahmed
| Yle.fi Verified
Osa vaatteista päätyy jätekasoihin köyhien maiden kaatopaikoille
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