Spas Kolev

Graphene/fluorescein dye-based sensor for detecting As(III) in drinking water

Madhu D Sharma, Sadhana S Rayalu, Spas D Kolev, Reddithota J Krupadam

Journal article  |  2021  |  SCIENTIFIC REPORTS

A complex of reduced graphene oxide (rGO) and fluorescein (FL) dye nanoparticles of size between 50 and 100 nm has been prepared a..

Selective extraction of Bi(III) from sulfate solutions by a poly(vinyl chloride) based polymer inclusion membrane incorporating bis (2-ethylhexyl)phosphoric acid as the extractant

Davood Kazemi, Mohammad Reza Yaftian, Spas D Kolev

Journal article  |  2021  |  REACTIVE & FUNCTIONAL POLYMERS

The present paper reports on the first application of a polymer inclusion membrane (PIM) for the extraction of the bismuth(III) io..

A cross-linked polymer inclusion membrane for enhanced gold recovery from electronic waste

Bosirul Hoque, Spas D Kolev, Robert W Cattrall, Thiruvancheril G Gopakumar, M Ines GS Almeida

Journal article  |  2021  |  WASTE MANAGEMENT

A cross-linked polymer inclusion membrane (CL-PIM) incorporating the extractant trihexyltetradecylphosphonium bis(2,4,4-trimethylp..

Improving the extraction performance of polymer inclusion membranes by cross-linking their polymeric backbone

Bosirul Hoque, M Ines GS Almeida, Robert W Cattrall, Thiruvancheril G Gopakumar, Spas D Kolev

Journal article  |  2021  |  REACTIVE & FUNCTIONAL POLYMERS

This study aims at comprehensively investigating the possibility of fabricating cross-linked polymer inclusion membranes (PIMs) us..

Pandemic products and volatile chemical emissions

Anne Steinemann, Neda Nematollahi, Behzad Rismanchi, Nigel Goodman, Spas D Kolev

Journal article  |  2021  |  Air Quality, Atmosphere and Health

The recent pandemic (COVID-19) has seen a sweeping and surging use of products intended to clean and disinfect, such as air sprays..

Exploring the use of Dicranopteris pedata ash as a rare earth fertilizer to Ipomoea aquatica Forsskal

Zhenggui Wei, Bin Gao, Ka Yu Cheng, Anna H Kaksonen, Spas D Kolev, Jonathan WC Wong, Jing Cui

Journal article  |  2020  |  JOURNAL OF HAZARDOUS MATERIALS

This study examines a new method to dispose the biomass of a rare earth elements (REE) hyperaccumulator, Dicranopteris pedata, as ..

Monitoring of ammonia in marine waters using a passive sampler with biofouling resistance and neural network-based calibration

Lenka O'Connor Sraj, Maria Ines GS Almeida, Simon M Sharp, Ian D McKelvie, Richard Morrison, Spas D Kolev

Journal article  |  2020  |  ENVIRONMENTAL POLLUTION

A biofouling resistant passive sampler for ammonia, where the semi-permeable barrier is a microporous hydrophobic gas-diffusion me..

Use of a Polymer Inclusion Membrane and a Chelating Resin for the Flow-Based Sequential Determination of Copper(II) and Zinc(II) in Natural Waters and Soil Leachates

Tania CF Ribas, Charles F Croft, M Ines GS Almeida, Raquel BR Mesquita, Spas D Kolev, Antonio OSS Rangel

Journal article  |  2020  |  Molecules

A bi-parametric sequential injection method for the determination of copper(II) and zinc(II) when present together in aqueous samp..

Volatile chemical emissions from car air fresheners

Anne Steinemann, Neda Nematollahi, Justine Lew Weinberg, Jennifer Flattery, Nigel Goodman, Spas D Kolev

Journal article  |  2020  |  Air Quality, Atmosphere and Health

Air fresheners, used in a variety of indoor environments, emit a range of volatile chemicals, including some classified as hazardo..

PVDF-HFP based polymer inclusion membranes containing Cyphos (R) IL 101 and Aliquat (R) 336 for the removal of Cr(VI) from sulfate solutions

Salar Bahrami, Mohammad Reza Yaftian, Pourya Najvak, Leila Dolatyari, Hassan Shayani-Jam, Spas D Kolev

Journal article  |  2020  |  SEPARATION AND PURIFICATION TECHNOLOGY

Poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) was used for the preparation of polymer inclusion membranes (PIMs) con..