Infusing Chemistry Lecture Courses with Green Chemistry: Poster & Oral Presentations, Web Based Modules, Supplemental Materials, and Textbooks Michael C. Cann Chemistry Department http://academic.scranton.edu/faculty/CANNM1/greenchemistry.html
GREEN CHEMISTRY • Green Chemistry, or sustainable/environmentally benign chemistry is the design of chemical products and processes that reduce of eliminate the use and generation of hazardous substances • Minimize: – waste – energy use – resource use (maximize efficiency)
• utilize renewable resources
Chemists Must Place a Major Focus on the Environmental Consequences of Chemical Products and the Processes by which these Products are Made.
We must consider our chemical ecological footprint.
GREEN CHEMISTRY • "Green chemistry represents the pillars that hold up our sustainable future. It is imperative to teach the value of green chemistry to tomorrow's chemists." Daryle Busch, President ACS, June 26, 2000, “Color Me Green” Chem. Eng. News 2000, 78 (28) 49-55.
ENVIRONMENTAL CHEMISTRY • Poster/Oral Presentation on one of the PGCC Award Winning Proposals 1996 Cann, Michael C., J. Chem. Ed. 1999, 76 (12), 1639-1641.
REAL-WORLD CASES IN GREEN CHEMISTRY • ACS/EPA Green Chemistry Educational Materials Development Project, 1998 • Compilation of materials on real-world green chemistry (based on PGCC) in a format that can be used for educational purposes • Each case acts as an informational resource for instructors to use in greening their courses • Marc Connelly http://www.acs.org/portal/Chemistry?PID=acsdisplay.html &DOC=education\greenchem\cases.html
Real-World Cases in Green Chemistry
Real-World Cases in Green ChemistryMichael C. Cann and Marc E. ConnellyUniversity of Scran
Michael C. Cann and Marc E. ConnellyUniversity of ScrantonThe Concept of Atom Economy g,o,e,inHow Many Reactant Atoms are Incorporated into the Desired Product and How
MAINSTREAMING GREEN CHEMISTRY • Insertion of green chemistry into mainstream chemistry courses • Need faculty who teach these courses to develop modules on green chemistry related to topics already covered in their course • Make it easy (lower Eact) for other faculty to do the same; place materials on the web
WEB BASED GREEN CHEMISTRY MODULES FOR SPECIFIC CHEMISTRY COURSES • Major support-The Camille and Henry Dreyfus Foundation; Additional support-ACS/EPA, University of Scranton • T. Dickneider, T. Foley, D. Marx, D. NarsavageHeald, J. Wasilewski (The “Green Machine”) Cann, M. C. "Greening the Chemistry Curriculum at the University of Scranton," Green Chemistry, 2001, 3, G23 Cann, M.C., Dickneider, T. A., "Infusing the Chemistry Curriculum with Green Chemistry Using Real-World Examples, Web Modules, and Atom Economy in Organic Chemistry," J. Chem. Ed., 2004, 81, 977
GREEN CHEMISTRY MODULES FOR SPECIFIC CHEMISTRY COURSES
GREEN CHEMISTRY MODULES FOR SPECIFIC CHEMISTRY COURSES • General -Surfactants for CO2 • Organic -Atom economy • Inorganic –Activators of hydrogen peroxide for green oxidation • Biochemistry –Confirm, Mach 2 and Intrepid pesticides • Advanced Organic –Elimination of Chlorine in NAS
• • • •
Polymer –Polyaspartic acid Industrial –Petretec polyester regeneration Environmental –Sea-nine antifoulant Chemical Toxicology –Confirm, Mach 2, and Intrepid
Green Chemistry –Environmental Chemistry • Ozone hole and troposheric air pollution: carbon dioxide as a replacement for CFCs and hydrocarbon blowing agents; surfactants for carbon dioxide so that carbon dioxide can be used to replace VOCs. • Pesticides: readily biodegradable marine antifoulant as replacement for tributyltin oxide; selective pesticides as replacements for broad spectrum pesticides. • Toxic organic chemicals (e.g. dioxins): activators of hydrogen peroxide to replace chlorine bleaching agents. • Polluted water and sewage treatment: biodegradable scale inhibitors and dispersing agents as a replacement for polyacrylate polymer. • Solid waste, landfills and closed loop recycling: Petretec process for conversion of PET back into its monomers and reformation into virgin PET.
Environmental Chemistry
Environmental Chemistry
Baird & Cann
Baird & Cann
• Introduction to Green Chemistry –Atom economy; synthesis of ibuprofen. • Ozone –CO2 as a blowing agent; Harpin as a replacement for methyl bromide fumigant. • Tropospheric pollutants –CO2 surfactants. • Greenhouse gases –scCO2 in photolithography. • Energy/petroleum –biodegradable polymers from renewable resources. • Pesticides –selective pesticides; termite control/ reduced risk pesticides.
• Toxic organics –non-chlorine bleaching agents, H2O2 activators • Water pollution/purification –enzymatic preparation of cotton textiles; biodegradable chelating agents • Heavy metals –removal of lead from automobile paint; removal of arsenic and cadmium from pressure treated wood • Solid waste –biodegradable antiscalant; recylable carpeting
Green Chemistry Endeavors at Scranton
• “Greening” existing chemistry textbooks. – “Organic Chemistry, Solomons & Fryhle, Wiley – “Chemistry Foundations and Applications,” Macmillan
• Translation of our web-based Green Chemistry Modules into Spanish & Portuguese. • The business side of green chemistry. – Survey of PGCC applicant – Infusion into business courses
• Bringing green chemistry to the high school and secondary school level. • Integrating sustainability throughout our campus http://matrix.scranton.edu/sustainability/default.shtml
