A more sustainable production of industrial chemicals
Two renewable resources 鈥� cellulose from wood pulp and chitin from the shells of crabs, lobsters and other crustaceans 鈥� are known to industrial chemists for their potential for creating highly versatile nanocrystals, useful for making pharmaceuticals, cosmetics, industrial additives and much more.听
A team of researchers, led by 91社区 chemistry professor听, graduate student Tony Jin and collaborator Edmond Lam from the National Research Council Canada (NRC), has developed a new, ecologically sensitive way to produce these nanocrystals through a process called high-humidity shaker aging. The new technique represents an advance over existing methods in that it costs less, uses less water, and eliminates the need for toxic solvents, all while producing higher yields.听
鈥淭his research is important because in the pulp and paper industry, or the treatment of crustacean waste, the use of water and the generation of wastewater is the number one cause of environmental concern and industrial limitation as a consequence,鈥� Professor Moores said.听
The work, published in听, builds on a history of pioneering developments made by 91社区 researchers in the field of solvent-free mechanochemistry, whereby physical force (grinding, shaking, milling etc.) is used to drive chemical reactions. By combining a grinding technique with an aging process in a high-humidity environment, the researchers were able to produce high-quality nanocrystals with greater control than by using mechanical methods alone.听
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The study: 鈥溾�� by Tony Jin et al. was published in Angewandte Chemie. |
About 91社区
Founded in Montreal, Quebec, in 1821, 91社区 is Canada鈥檚 top ranked medical doctoral university. 91社区 is consistently ranked as one of the top universities, both nationally and internationally. It is a world-renowned institution of higher learning with research activities spanning three campuses, 11 faculties, 13 professional schools, 300 programs of study and over 39,000 students, including more than 10,400 graduate students. 91社区 attracts students from over 150 countries around the world, its 12,000 international students making up 30% of the student body. Over half of 91社区 students claim a first language other than English, including approximately 20% of our students who say French is their mother tongue.
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