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Volume 3, Issue 2 (Suppl)
Trends in Green chem
ISSN: 2471-9889
Environmental & Green Chemistry 2017
July 24-26, 2017
Page 120
5
th
International Conference on
6
th
International Conference on
July 24-26, 2017 Rome, Italy
Environmental Chemistry and Engineering
Green Chemistry and Technology
&
Artificial photosynthesis to convert CO
2
into solar fuels: Can we do better than Mother Nature?
Kuei-Hsien Chen
1,2
and
Li-Chyong Chen
1
1
Institute of Atomic and Molecular Sciences - Academia Sinica, Taiwan
2
National Taiwan University, Taiwan
F
inding effective ways for conversion of CO
2
into hydrocarbons (as energy fuels or chemical feedstock) is highly desirable
to achieve sustainable development. Artificial photocatalytic conversion of CO
2
to hydrocarbons such as methanol makes
possible simultaneous solar energy harvesting and CO
2
reduction, two birds with one stone for the energy and environmental
issues. In this talk, I will overview the current status in artificial photosynthesis and present our progress in green processing
of earth-abundant and environment-friendly semiconductors to achieve the goal. In our attempt, modified graphene oxides
(GOs) has been utilized to prove the concept and showed 4 times enhancement in activity over a commercial TiO
2
(P25).
Further modification including copper nanoparticle addition to form hybrids to achieve 60 times enhancement in catalytic
activity has been demonstrated. On the other hand, a SnS
2
with carbon addition yield quantum efficiency up to 0.7% to
convert CO
2
into acetaldehyde, which is highly valuable in polymer industry. The conversion efficiency is comparable to that of
photosynthesis in nature and sheds light for a brighter future. Detailed preparation, characterization, and performance of the
catalysts will be presented. The role and interplay of the constituent components will also be discussed.
chenkh@pub.iams.sinica.edu.twReplacingPd(OAc)
2
with supportedpalladiumnanoparticles inC-Hbond, C-Obondactivation reaction
Yong-Sheng Bao
Inner Mongolia Normal University, China
S
upported palladium nanoparticles were used as an efficient catalyst for C-H bond, C-O bond activation reaction for the
synthesis of aromatic ketones, amides and quinones. The catalyst can be reused for five cycles without significantly losing
activity. The XPS analysis of the catalyst before and after reaction suggested that the reaction might be performed via a catalytic
cycle that began with Pd
0
. The hot filtration test strongly suggests that the present reaction would proceed via heterogeneous
manner.
sbbys197812@163.comTrends in Green chem, 3:2
DOI: 10.21767/2471-9889-C1-003