• Photocatalytic degradation of phenol using visible light activated Ag-AgBr-hydrotalcite composite 

  Tabana, Lehlogonolo Shane; Tichapondwa, Shepherd Masimba (Italian Association of Chemical Engineering, 2023)

  Water pollution is one of the persistent environmental challenges that continues to impact numerous communities worldwide. As such, several sustainable remediation technologies have been developed over the years to ...
• Kinetic modelling of selenite reduction by Enterococcus spp in batch reactors 

  Tendenedzai, Job Tatenda; Chirwa, Evans M.N.; Brink, Hendrik G. (Italian Association of Chemical Engineering, 2023)

  Selenite (SeO3 2-) is a toxic selenium oxyanion which readily bio-accumulates in the food chain. Enterococcus species were found to reduce SeO3 2- to elemental selenium (Se0) more rapidly (in 1 h) as compared to ...
• Bandgap tailoring of ZnO using metallic sulphides for enhanced visible-light-active photocatalytic water treatment 

  Mugumo, Rachel; Ichipi, Emmanuel O.; Tichapondwa, Shepherd Masimba; Chirwa, Evans M.N. (Italian Association of Chemical Engineering, 2023)

  The combination of a wide bandgap Zinc oxide (ZnO ~3.4 eV) semiconductor photocatalyst with typical metallic sulphides, namely, silver sulphide (Ag2S), ferric sulphide (FeS) and nickel sulphide (NiS), all of a similar ...
• Kinetics and isotherms of a genetically engineered Saccharomyces cerevisiae EBY100 strain expressing palladium binding peptides for the biosorption of Pd (II) in a batch reactor 

  Mashangoane, Boitumelo Francina; Chirwa, Evans M.N.; Mahlathi, Chris (Italian Association of Chemical Engineering, 2023)

  Palladium is a rare platinum group metal concentrated in the Earth's core and mantle; because of its scarcity, its waste recovery and reuse options are economically appealing. Traditional strategies for extracting PGMs ...
• Adsorption of hexavalent chromium from wastewater using microcrystalline cellulose 

  Mhike, Washington; Dewa, Lovejoy; Tichapondwa, Shepherd Masimba (Italian Association of Chemical Engineering, 2023)

  In this study, microcrystalline cellulose (MCC) was utilised as an adsorbent for the removal of Cr(VI) from synthetic wastewater. FTIR spectroscopy confirmed the main characteristic infrared absorption bands of cellulose ...
• Visible-light-induced photocatalytic degradation of rhodamine B dye using a CuS/ZnS p-n heterojunction nanocomposite under visible-light irradiation 

  Mugumo, Rachel; Ichipi, Emmanuel O.; Tichapondwa, Shepherd Masimba; Chirwa, Evans M.N. (MDPI, 2023-08-03)

  The aim of this work was to investigate a new, simple, one-pot combustion synthesis technique for creating sulphur-based CuS/ZnS p-n heterojunction nanocomposite photocatalysts. This study examined the photocatalytic ...
• Sustainable utilization of value-added products from the catalytic and non-catalytic pyrolysis of motor car scrap tire: suitability of produced char for energy generation and sugar mill wastewater treatment 

  Ayeni, Augustine O.; Dick, Deinma T.; Agboola, Oluranti; Sadiku, Rotimi; Daramola, Michael Olawale; Oladokun, Olagoke; Alagbe, Edith E. (Elsevier, 2024-06)

  Please read abstract in the article.
• The application of bio-Pd(0) as a biogenic cathode in a microbial fuel cell 

  Malunga-Makatu, Khanyisile B.; Chirwa, Evans M.N.; Tichapondwa, Shepherd Masimba (The Italian Association of Chemical Engineering, 2023)

  The increasing concerns of climate change, energy generation, storage, consumption, and water pollution are topics that are gaining attention within modern research fields. This has led to numerous researchers devoting their ...
• Wood chips as a carbon source for denitrification in household slow sand filters 

  Mojela, Sintle M.; Tichapondwa, Shepherd Masimba; Chirwa, Evans M.N. (Italian Association of Chemical Engineering, 2023)

  The objective of this study was to evaluate the suitability of using woodchips as a carbon source for denitrification in intermittently operated household slow sand filters. This was accomplished through a series of batch ...
• Fabrication and application of Ag, black TiO2 and nitrogen-doped 3D reduced graphene oxide (3D black TiO2/Ag/N@rGO) evaporator for efficient steam generation 

  Bezza, Fisseha Andualem; Iwarere, Samuel A.; Tichapondwa, Shepherd Masimba; Chirwa, Evans M.N. (MDPI, 2023-03-02)

  The scarcity of fresh water, which is aggravated by rapid economic development and population growth, is a major threat to the modern world. Solar-driven interfacial desalination and steam generation is a promising strategy ...
• In situ bioreduction of hexavalent chromium-contaminated water using a microbial culture barrier 

  Kholisa, Buyisile; Matsena, Mpumelelo Thomas; Chirwa, Evans M.N. (Wiley, 2023-06)

  Chromium (Cr) has been extensively used in many industrial applications. Inappropriate disposal of effluent has led to increased Cr concentrations in the environment. As a result, Cr(VI) has been classified under strict ...
• Microbial fuel cells : the effect of granular activated carbon and graphite as growth substrates on bioelectrogenesis by Geobacter sulfurreducens 

  Van Heerden, Xandra (University of Pretoria, 2019-12)

  There is an increasing demand for environmentally sustainable alternative energy sources as the supply of fossil fuels dwindles and the concern about our carbon footprint continues to increase. Bioelectrogenesis is a process ...
• Fractionation of yellow thatching grass (Hyparrhenia filipendula) for sugar production using combined alkaline and deep eutectic solvent pretreatment 

  Masuku, N.F.; Ayaa, F.; Onyelucheya, C.M.; Iwarere, Samuel A.; Daramola, Michael Olawale; Kirabira, J.B. (Springer, 2023-08)

  PURPOSE : Biomass pretreatment followed by enzymatic hydrolysis is one of the most viable ways to obtain sugars from biomass. In this work, the effect combined alkaline pretreatment and Deep Eutectic Solvent on enzyme ...
• Extraction and characterization of cellulose nanofibers from yellow thatching grass (Hyparrhenia filipendula) straws via acid hydrolysis 

  Ndwandwa, N.; Ayaa, F.; Iwarere, Samuel A.; Daramola, Michael Olawale; Kirabira, J.B. (Springer, 2023-08)

  PURPOSE : A variety of lignocellulosic raw materials have been previously reported for the production of cellulose and cellulose derivatives, but little research effort has been dedicated to producing cellulose from ...
• Comparative screening study on the adsorption of aqueous Pb(II) using different metabolically inhibited bacterial cultures from industry 

  Kpai, Patrick Y.; Nel, Jaco; Haneklaus, Nils; Chirwa, Evans M.N.; Brink, Hendrik Gideon (MDPI, 2023-12-12)

  The global concern about the water pollution caused by heavy metals necessitates effective water treatment methods. Adsorption, with its substantial advantages, stands out as a promising approach. This study delves into ...
• The drivers of GHG emissions : a novel approach to estimate emissions using nonparametric analysis 

  Magazzino, Cosimo; Cerulli, Giovanni; Haouas, Ilham; Unuofin, John O.; Sarkodie, Samuel Asumadu (Elsevier, 2024-03)

  The rising levels of global GHG emissions underpin climate change, hence, taking an appropriate inventory of the drivers and patterns of anthropogenic emissions remains crucial to mitigating global climate effects. However, ...
• Photocatalytic degradation of efavirenz and nevirapine using visible light-activated Ag-AgBr-LDH nanocomposite catalyst 

  Tabana, Lehlogonolo Shane; Booysens, Davy-Rayn; Tichapondwa, Shepherd Masimba (Elsevier, 2023-10)

  Antiretroviral drugs (ARVDs) are one of the many classes of emerging pharmaceutical pollutants that have been detected in South African waterbodies in recent years. Efavirenz (EFV) and nevirapine (NVP) are commonly ...
• High-capacity adsorption of hexavalent chromium by a polyaniline-Ni(0) nanocomposite adsorbent : expanding the Langmuir-Hinshelwood kinetic model 

  Lohrentz, Luca; Bhaumik, Madhumita; Brink, Hendrik Gideon (Elsevier, 2023-11)

  A nanocomposite of 2-napthalenesulfonic acid doped-polyaniline decorated with zero valent nickel nanoparticles (PANI-NSA@Ni0), was considered for the removal of hexavalent chromium from synthetic effluent. Adsorption conditions ...
• Rose and lavender industrial by-products application for adsorption of Acid Orange 7 from aqueous solution 

  Marovska, Gergana; Dushkova, Mariya; Angelova, Galena; Brazkova, Mariya; Brink, Hendrik Gideon; Haneklaus, Nils; Menkov, Nikolay; Slavov, Anton (Springer, 2024)

  Please read abstract in the article.
• The effect of pre-pyrolysis chemical treatment of waste tyre rubber crumbs : comparison between pre-treated and conventional waste tyre-derived oil 

  Tsipa, Phuti Cedrick; Phiri, Mapoloko Mpho; Iwarere, Samuel A.; Mkhize, Ntandoyenkosi Malusi; Phiri, Mohau Justice; Hlangothi, Shanganyane Percy (Wiley, 2023-05)

  BACKGROUND : Pyrolysis process is one of the most effective recycling methods due to its ability to recover products like gas, oil and char with oil being the major/important product. The shortcomings of waste tyre-derived ...

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