Search Content

Styrene Oxide Adsorption on Commercial Resins

Description

The goals of the styrene oxide adsorption experiments were to develop reliable isotherms of styrene oxide onto Dowex Optipore L-493 resin and onto mesoporous carbon adsorbents, in addition to determining the ideal conditions for styrene oxide production from E. coli. Adsorption is an effective means of separation used in industry…

The goals of the styrene oxide adsorption experiments were to develop reliable isotherms of styrene oxide onto Dowex Optipore L-493 resin and onto mesoporous carbon adsorbents, in addition to determining the ideal conditions for styrene oxide production from E. coli. Adsorption is an effective means of separation used in industry to separate compounds, often organics from air and water. Styrene oxide adsorption runs without E. coli were conducted at concentrations ranging from 0.15 to 3.00 g/L with resin masses ranging from 0.1 to 0.5 g of Dowex Optipore L-493 and 0.5 to 0.75 g of mesoporous carbon adsorbent. Runs were conducted on a shake plate operating at 80 rpm for 24 hours at ambient temperature. Isotherms were developed from the results and then adsorption experiments with E. coli and L-493 were performed. Runs were conducted at glucose concentrations ranging from 20-40 g/L and resin masses of 0.100 g to 0.800 g. Samples were incubated for 72 hours and styrene oxide production was measured using an HPLC device. Specific loading values reached up to 0.356 g/g for runs without E. coli and nearly 0.003 g of styrene oxide was adsorbed by L-493 during runs with E. coli. Styrene oxide production was most effective at low resin masses and medium glucose concentrations when produced by E. coli.

ContributorsHsu, Joshua (Co-author) / Oremland, Zachary (Co-author) / Nielsen, David (Thesis director) / Staggs, Kyle (Committee member) / Barrett, The Honors College (Contributor) / Chemical Engineering Program (Contributor) / School of Sustainability (Contributor)

Created2014-05

Biomimetic Design Inspired through Macro-Ecological Photography

Description

This creative project explores how macro-ecological photography can serve as a community engagement tool for the field of biomimicry, meant to provoke interest in the subject. My photos, and the organisms pictured in them, were hand selected for this project to form one cohesive, aesthetic set. The appeal of the…

This creative project explores how macro-ecological photography can serve as a community engagement tool for the field of biomimicry, meant to provoke interest in the subject. My photos, and the organisms pictured in them, were hand selected for this project to form one cohesive, aesthetic set. The appeal of the colorful pictures captured the attention of audience members so they felt more inclined to learn about the informational content accompanying the art. Each picture is coupled with a scientific explanation as to how the pictured organism relates to the field of biomimicry, including concrete examples of its application. To maximize exposure of the project, I published my photos through a website and an e-book, and also presented them as a live photography exhibit on campus at Arizona State University.

ContributorsGerber, Haley Dawn (Author) / Jenik, Adriene (Thesis director) / Walters, Molina (Committee member) / Division of Teacher Preparation (Contributor) / School of Sustainability (Contributor) / Barrett, The Honors College (Contributor)

Created2018-05

Evaluating Whole-School Sustainability

Description

Circles of Sustainability is a self-evaluation tool designed to build educator capacity in K-12 schools seeking sustainability solutions. Based on the Sustainable Schools Challenge Handbook from Memphis, Tennessee, Circles of Sustainability considers environmental impact and efficiency, a healthy and safe school environment, sustainability and environmental education, and engagement and empowerment…

Circles of Sustainability is a self-evaluation tool designed to build educator capacity in K-12 schools seeking sustainability solutions. Based on the Sustainable Schools Challenge Handbook from Memphis, Tennessee, Circles of Sustainability considers environmental impact and efficiency, a healthy and safe school environment, sustainability and environmental education, and engagement and empowerment as four key pillars of whole-school sustainability. Each pillar is composed of elements and rubric items, which are reviewed, totaled, and colored in on the front page of the tool to help educators visualize and evaluate the current state of sustainability at their school. Since its first iteration completed in May 2017, the tool has been used by 300 educators throughout the United States during ASU's Sustainability Teachers' Academy (STA) workshops. Circles of Sustainability is completed as part of an activity called "Evaluating Your Community," where educators complete the tool and then brainstorm sustainability projects and solutions for their school and community. This paper is a review and discussion of the research, informal feedback and formal feedback used to create the second iteration of the tool. A second iteration of the tool was created to make the tool more user-friendly and ensure each pillar, element, and rubric item are based in research. The informal feedback was conducted during STA workshops in Tempe, Arizona; Abingdon, Virginia; Princeton, New Jersey; Chicago, Illinois; Los Angeles, California; Tucson, Arizona; and Charlotte, North Carolina. The formal feedback was conducted using a survey distributed to teachers who participated in the Tucson and Charlotte workshops. Overall, educators have responded positively to the tool, and the second iteration will continue to be used in future STA workshops throughout the United States.

ContributorsColbert, Julia (Author) / Schoon, Michael (Thesis director) / Merritt, Eileen (Committee member) / School of Sustainability (Contributor) / Division of Teacher Preparation (Contributor) / School of Geographical Sciences and Urban Planning (Contributor) / Barrett, The Honors College (Contributor)

Created2018-05

Bi-phase Synthesis of the Zirconium Metal-Organic Framework, UiO-66

Description

Metal-organic frameworks (MOFs) are a new set of porous materials comprised of metals or metal clusters bonded together in a coordination system by organic linkers. They are becoming popular for gas separations due to their abilities to be tailored toward specific applications. Zirconium MOFs in particular are known for their…

Metal-organic frameworks (MOFs) are a new set of porous materials comprised of metals or metal clusters bonded together in a coordination system by organic linkers. They are becoming popular for gas separations due to their abilities to be tailored toward specific applications. Zirconium MOFs in particular are known for their high stability under standard temperature and pressure due to the strength of the Zirconium-Oxygen coordination bond. However, the acid modulator needed to ensure long range order of the product also prevents complete linker deprotonation. This leads to a powder product that cannot easily be incorporated into continuous MOF membranes. This study therefore implemented a new bi-phase synthesis technique with a deprotonating agent to achieve intergrowth in UiO-66 membranes. Crystal intergrowth will allow for effective gas separations and future permeation testing. During experimentation, successful intergrown UiO-66 membranes were synthesized and characterized. The degree of intergrowth and crystal orientations varied with changing deprotonating agent concentration, modulator concentration, and ligand:modulator ratios. Further studies will focus on achieving the same results on porous substrates.

ContributorsClose, Emily Charlotte (Author) / Mu, Bin (Thesis director) / Shan, Bohan (Committee member) / Chemical Engineering Program (Contributor) / Barrett, The Honors College (Contributor)

Created2016-12

Emotion and learning in children attending summer science camp

Description

With the overall health of the environment rapidly declining \u2014 mostly due to human behaviors, solving the problem of nature deficit disorder and getting more children interested and aware of nature could be paramount to improving the environmental health of our planet. In this study, the relationship between children's learning…

With the overall health of the environment rapidly declining \u2014 mostly due to human behaviors, solving the problem of nature deficit disorder and getting more children interested and aware of nature could be paramount to improving the environmental health of our planet. In this study, the relationship between children's learning and emotion is explored. Pre- and post-tests were given to children attending a week-long summer freshwater ecology camp; their knowledge of and emotional connection to different ecological concepts were measured. Two separate ecosystems were tested \u2014 a freshwater ecosystem that was taught over the course of the week, and a marine ecosystem for comparison. Increases in knowledge and emotion were seen in every freshwater ecosystem concept. Additionally, the knowledge and emotion scores were correlated, suggesting a positive relationship between them. The marine ecosystem did not show improvements in concrete knowledge, but showed increases in abstract learning, indicating that the abstract concepts learned about the freshwater ecosystem were able to transfer to the marine. Overall results show the ability of a hands-on learning experience to foster an emotional connection between a child and the subject matter. However, long-term studies are needed to track the relationship between children and their knowledge of and emotional connection to the subject matter.

ContributorsMossler, Max Vaughn (Author) / Pearson, David (Thesis director) / Smith, Andrew (Committee member) / Berkowitz, Alan (Committee member) / Barrett, The Honors College (Contributor) / School of Sustainability (Contributor) / School of Life Sciences (Contributor)

Created2013-05

Environmental Education for Children: Creating an Online Repository of Books and Lesson Plans for Elementary Education

Description

The existing educational system is failing to provide adequate environmental education to future generations so that they will have the knowledge, skills, and capability to address the environmental concerns that society is facing. The system must encompass environmental education through adoption of an eco-pedagogical system that either contributes to traditional…

The existing educational system is failing to provide adequate environmental education to future generations so that they will have the knowledge, skills, and capability to address the environmental concerns that society is facing. The system must encompass environmental education through adoption of an eco-pedagogical system that either contributes to traditional education or is utilized on its own. The eco-pedagogical system produces education from a social and ecological point of view. As a result of the approach, students would develop and form a connection to nature as well as environmental hope. Each of these components will contribute to the student’s motivation, pathway thinking, agency thinking, and social trust. Leading to the development of the student's aptitude and capability to establish a goal and a plan to achieve it, as well as the identification of potential barriers and strategies for overcoming them. Ultimately, environmental education will equip future generations with the knowledge and skills necessary to create a social system that is capable of sustaining life while also caring for the environment and addressing environmental concerns produced by anthropocentric consequences. Keywords: Environmental education, eco-pedagogy, connection to nature, environmental hope Website Link: https://kvidean43.wixsite.com/environmentaled

ContributorsVidean, Kira (Author) / Bowman, Diana (Thesis director) / Serafini, Frank (Committee member) / Barrett, The Honors College (Contributor) / School of Sustainability (Contributor) / School of Social Transformation (Contributor)

Created2022-05

Videan Final Project (Spring 2022)

Description

The existing educational system is failing to provide adequate environmental education to future generations so that they will have the knowledge, skills, and capability to address the environmental concerns that society is facing. The system must encompass environmental education through adoption of an eco-pedagogical system that either contributes to traditional…

The existing educational system is failing to provide adequate environmental education to future generations so that they will have the knowledge, skills, and capability to address the environmental concerns that society is facing. The system must encompass environmental education through adoption of an eco-pedagogical system that either contributes to traditional education or is utilized on its own. The eco-pedagogical system produces education from a social and ecological point of view. As a result of the approach, students would develop and form a connection to nature as well as environmental hope. Each of these components will contribute to the student’s motivation, pathway thinking, agency thinking, and social trust. Leading to the development of the student's aptitude and capability to establish a goal and a plan to achieve it, as well as the identification of potential barriers and strategies for overcoming them. Ultimately, environmental education will equip future generations with the knowledge and skills necessary to create a social system that is capable of sustaining life while also caring for the environment and addressing environmental concerns produced by anthropocentric consequences. Keywords: Environmental education, eco-pedagogy, connection to nature, environmental hope Website Link: https://kvidean43.wixsite.com/environmentaled

ContributorsVidean, Kira (Author) / Bowman, Diana (Thesis director) / Serafini, Frank (Committee member) / Barrett, The Honors College (Contributor) / School of Sustainability (Contributor)

Created2022-05

Videan Creative Portion (Spring 2022)

Description

The existing educational system is failing to provide adequate environmental education to future generations so that they will have the knowledge, skills, and capability to address the environmental concerns that society is facing. The system must encompass environmental education through adoption of an eco-pedagogical system that either contributes to traditional…

The existing educational system is failing to provide adequate environmental education to future generations so that they will have the knowledge, skills, and capability to address the environmental concerns that society is facing. The system must encompass environmental education through adoption of an eco-pedagogical system that either contributes to traditional education or is utilized on its own. The eco-pedagogical system produces education from a social and ecological point of view. As a result of the approach, students would develop and form a connection to nature as well as environmental hope. Each of these components will contribute to the student’s motivation, pathway thinking, agency thinking, and social trust. Leading to the development of the student's aptitude and capability to establish a goal and a plan to achieve it, as well as the identification of potential barriers and strategies for overcoming them. Ultimately, environmental education will equip future generations with the knowledge and skills necessary to create a social system that is capable of sustaining life while also caring for the environment and addressing environmental concerns produced by anthropocentric consequences. Keywords: Environmental education, eco-pedagogy, connection to nature, environmental hope Website Link: https://kvidean43.wixsite.com/environmentaled

ContributorsVidean, Kira (Author) / Bowman, Diana (Thesis director) / Serafini, Frank (Committee member) / Barrett, The Honors College (Contributor) / School of Sustainability (Contributor)

Created2022-05

Filtering by