My Account Login | Register About Us Contact Us
Home World University Business School International School Student Life Teacher Recruitment Education Exhibition Education Media
  • Life
  • Learning
  • Work
  • Entertainment

Beating School Stress this Week…Kapow!
For those of you taking Summer courses, you know ALL TOO WELL how quickly the course materials go by and before you know it finals a...
·Living costs in Australia
·Government should be tougher on responsi...
·National University to celebrate student...
·Varsity cricket match to be held in memo...
·Living costs in Australia

The Physics of Food
Ice doesn’t belong in ice cream. If you want to make an extra lickable treat, you need to minimize the ice part.
·Study tracks hunting experience
·Study in New Zealand
·Study in Germany
·Why Study in Cyprus
·Why Study in Denmark

Students get a taste for Massey food ind...
Year 12 and 13 secondary school pupils experienced what it is like to study horticulture and agriculture at Massey University during...
·HuskyJobs for UW Students
·Career Services
·Using Hawk Jobs
·Student Work Experience
·Employment Opportunities

 
UC researchers take leaf from nature to catch CO2
Time: 2016-08-10    BY Alex Yip   From: University of Canterbury   Clicks: 412
(0) Comments Print Mail Text size: A   A  A


UC researchers have been awarded research funding from the Royal Society of NZ Catalyst Fund to create a synthetic leaf to use or consume the greenhouse gas carbon dioxide.

UC researcher Dr Alex Yip of the University of Canterbury’s Chemical and Process Engineering (CAPE) department, along with UC CAPE PhD student Iman Hashemizadeh and UC Chemistry academic Dr Vladimir Golovko, is working on a collaborative project with Chinese researchers titled: “Decorating Artificial TiO2 leaves for Effective Carbon Dioxide Capture and Usage”.

Global warming caused by greenhouse gases, predominantly carbon dioxide (CO2), is currently the most threatening issue affecting all life forms on Earth, Dr Yip says.

“The United Nations climate summit in Paris, in December 2015, set a target of limiting global warming to below 2deg C above pre-industrial times. We believe chemical processes that capture and convert waste CO2 into useful chemicals are viable pathways to cut CO2 emissions.”

This collaboration project between the University of Canterbury and the City University of Hong Kong will learn from nature and use photosynthesis in natural green leaves as the blueprint to develop a “sunlight-driven” process to utilise or consume CO2.

Recently, the New Zealand Project Team has successfully replicated the key structures in natural leaves that are responsible for light-harvesting and photosynthesis using titanium dioxide (TiO2), a proven photocatalyst for CO2 reduction.

Basically, the UC catalysis researchers have been learning from nature. An important approach for converting waste CO2 into useful fuels and chemicals is the photocatalytic reduction of CO2 in the presence of water, known as artificial photosynthesis, Dr Yip says.

“Use of sunlight as an abundant and readily available energy source to drive this important reaction still remains a key challenge for sustainable carbon capture and usage (CCU). Titanium dioxide (TiO2) is a well-known, well-researched semiconductor in the field of photocatalysis; however its band edges lie within the ultraviolet spectra, limiting energy absorption above wavelengths of 400 nm and resulting in it being inactive under visible light.”

On the other hand, natural leaves are known for their excellent light-harvesting efficiency due to their unique structure with extremely high surface area and photosynthesis function.

“In December 2015, our research team at the University of Canterbury made a significant breakthrough and successfully replicated both the micro- and nano-structures of natural leaves for the first time with TiO2 using our self-developed biotemplating method. The new artificial TiO2 leaves gave unprecedented absorbance and photocatalytic activity improvement under visible light compared with the analogue, traditional TiO2 in particulate form,” Dr Yip says.

With the collaboration of UC and CityU HK in China, this research aims to fabricate a metal-doped titanium dioxide catalyst with leaf-like characteristics to narrow the band gap and yield greater photocatalytic activity under visible light for CCU.

“The key to success is to employ a robust, reliable method to produce metallic nanoparticles, with controllable formulation and size, to decorate the TiO2 leaves via photodeposition. The proposed research provides a unique opportunity to utilise the properties of both TiO2 and leaves in artificial photosynthesis to convert CO2 into useful products or fuel. A photo-reactor integrated into a sun tracker will be built and placed on top of a UC building.”

 

12.2K
 
  Related News
·University research repays its state funding in spades
·King’s University College at Western University
·Up to 14 units of alcohol does not harm fertility
·Former SSA student spurs social work collaboration in China
·ESRC grant awarded to ASBS Researchers
  User Comments




World University
Find Your University
Study countries recommend
World University Rankings
Teacher Recruitment
Talent pool
Latest Jobs
Education Exhibition
Exhibition News
Recent Exhibitions
Business School
Find Your Business School
Business school accreditation
Business schools ranking
Student Life
Life
Learning
Work
Entertainment
International School
Find Your School
Education Media
Network
Television
Newspaper
Magazine
Broadcaster
New Media
About Us
Who we are
Contact Us
Career opportunities
The World Education Website
(BAIYI MEDIA)
Copyright @ 2016 Findworldedu.com

Email: info@findworldedu.com