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Verna Eileen Timmons
No full textposted: Le Necrologue, Echovita; funeral arrangements by Dennis Haverstock Funeral Home
KNb3O8 Functionalized with Light-Active Gold Nanoparticles for Removal of BPA
No full textThe contamination of water ways and landfills by microplastics (MP) is a pressing environmental issue. Once introduced, MP can have harmful physical and chemical effects on organisms, the latter often relating to industrial additives. One such additive is bisphenol A (BPA), a known endocrine disrupting chemical (EDC), which was the target for removal within this study. To date, research on the removal of aqueous waste has been focused on the use of light as a way to “photodegrade” these pollutants. Recently, TiO2 semiconductor materials have been demonstrated to be capable of photocatalytic degradation of both microplastics and BPA. This process necessitates the use of UV light, which has a high-energy demand and is harsh on the surrounding biological environment. In the following experiments, potassium niobium oxide (KNb3O8), a perovskite solid with similar light-active properties to TiO2 , has been utilized as a catalyst given its larger particle size (~1 mm). This allows for efficient catalyst recovery and reuse – a quality in high demand given the emerging importance of sustainable chemistry. Additionally, doping of the KNb3O8 surface with gold nanoparticles was employed to increase the response of the solid to favor the use of lower-energy visible light via surface plasmon resonance of the nanoparticle surface, allowing for the use of more energetically sustainable activation methods. To bolster the rate of BPA photodegradation, H2O2 has been utilized as a Fenton reagent. The use of visible light-activated KNb3O8/AuNP to facilitate the photodegradation of BPA has been explored in detail. Complete degradation within a 10 ppm BPA sample was observed after 4 hours of 530 nm green LED irradiation in the presence of H2O2, as opposed to ⁓75% degradation in the absence of H2O2. The effects of irradiation time, pollutant concentration, H2O2 volume, environmental pH, and incident light on photodegradation efficiency have been investigated, using high-performance liquid chromatography (HPLC) to monitor BPA concentration. The catalyst was recyclable over two cycles, with photocatalytic performance diminishing to ⁓80% and ⁓77% in the second and third trials, respectively. This is very promising as an environmental selling-point for KNb3O8/AuNP. While the mechanism for BPA photooxidation was hypothesized to occur with an initial hydrogen abstraction reaction followed by a series of oxidation reactions, no by-products have been detected by HPLC or GC-MS analysis. Complete mineralization of BPA is assumed, as a result
Edgar Gerard Bond
No full textposted: SaltWire, Apr. 26, 2022; funeral arrangements by C. L. Curry Funeral Services; formerly of Heatherto
Making ground for students' social and emotional learning in a secondary teacher's learning environment
No full textThis self-study investigates the instructional practices that embed students’ social and emotional learning in a grade 12 English class learning environment within the public educational system of northern British Columbia. In particular, the thesis explores the possibilities and challenges that influenced the actions of a secondary school English teacher when that teacher addressed social and emotional learning within the context of her learning environment. This thesis also explores how to help students construct meaning and purpose in their lives using social and emotional learning by using the following methods to collect data: journaling, field notes and photographs of learning environments, and lesson plans. By inquiring into a teacher’s lessons, 21st-century technology, and learning environment, this thesis provides new insights into the teaching profession concerning the implications of making social and emotional learning personally meaningful to provoke change in an individual teacher’s practice
Michael Brady Currie
No full textposted: SaltWire, Feb. 14, 2022; funeral arrangements by Dennis Haverstock Funeral Home
Janice Catherine (Hiltz) Knockwood
No full textposted: Le Necrologue, Echovita; funeral arrangements by Dennis Haverstock Funeral Home
Peter Bartholomew Carter
No full textposted: SaltWire, Mar. 28, 2022; funeral arrangements by Dennis Haverstock Funeral Homes; "Bert"
Ardella Maria (Ash) Desmond
No full textposted: SaltWire, Mar. 7, 2022; funeral arrangements by Dennis Haverstock Funeral Homes; stepfather: John Harvey Jordan; known as the "Mother of Lincolnville"
Robert Lindsay MacRae
No full textposted: Le Necrologue, Necro Canada; funeral arrangements by Dennis Haverstock Funeral Home
Asa Livingstone Harpell
No full textposted: SaltWire, Feb. 7, 2022; funeral arrangements by G. W. Giffin Funeral Home; "Junior"