g-C3N4/CoNiFe-LDH Z-Scheme Heterojunction for efficient CO2 photoreduction and MB dye photodegradation

Author(s):  
Biao Zhu ◽  
Qianxin Xu ◽  
Xiaoyan Bao ◽  
Dawei Lu ◽  
Hao Yin ◽  
...  

The development of efficient and stable photocatalyst to solve environmental issues is essential and remains a big challenge. In this work, flower-like CoNiFe-LDH is deposited in situ on g-C3N4 nanosheets,...

2021 ◽  
Vol 137 ◽  
pp. 111177
Author(s):  
Chi Chen ◽  
Jingpeng Jin ◽  
Shengtao Chen ◽  
Tingxia Wang ◽  
Jiangrong Xiao ◽  
...  

ChemCatChem ◽  
2018 ◽  
Vol 10 (20) ◽  
pp. 4578-4585 ◽  
Author(s):  
Yanan Wang ◽  
Yiqing Zeng ◽  
Shipeng Wan ◽  
Wei Cai ◽  
Fujiao Song ◽  
...  

Data ◽  
2019 ◽  
Vol 4 (3) ◽  
pp. 117 ◽  
Author(s):  
Shushanik Asmaryan ◽  
Vahagn Muradyan ◽  
Garegin Tepanosyan ◽  
Azatuhi Hovsepyan ◽  
Armen Saghatelyan ◽  
...  

Environmental issues become an increasing global concern because of the continuous pressure on natural resources. Earth observations (EO), which include both satellite/UAV and in-situ data, can provide robust monitoring for various environmental concerns. The realization of the full information potential of EO data requires innovative tools to minimize the time and scientific knowledge needed to access, prepare and analyze a large volume of data. EO Data Cube (DC) is a new paradigm aiming to realize it. The article presents the Swiss-Armenian joint initiative on the deployment of an Armenian DC, which is anchored on the best practices of the Swiss model. The Armenian DC is a complete and up-to-date archive of EO data (e.g., Landsat 5, 7, 8, Sentinel-2) by benefiting from Switzerland’s expertise in implementing the Swiss DC. The use-case of confirm delineation of Lake Sevan using McFeeters band ratio algorithm is discussed. The validation shows that the results are sufficiently reliable. The transfer of the necessary knowledge from Switzerland to Armenia for developing and implementing the first version of an Armenian DC should be considered as a first step of a permanent collaboration for paving the way towards continuous remote environmental monitoring in Armenia.


1998 ◽  
Vol 38 (2) ◽  
pp. 172
Author(s):  
J.B. Hinwood ◽  
L.R. Denis

A condition of offshore production licences in Australia, as in most countries, is that the operator undertakes to remove all facilities including pipelines. Frequently, when decommissioning an offshore facility, the operator will seek to leave the pipelines in place to avoid the costs of removal. In order to obtain approval for in-situ abandonment, however, the operator must satisfy regulatory authorities that the pipelines pose no hazards to the environment or to recognised beneficial uses of the offshore zone. Potential hazards to be considered include mechanical or physical effects of the pipe on the seabed, chemical and water quality effects due both to release of residues of the contents of the pipe and to the degradation of the pipe walls and coatings by mechanical and chemical action, and ecological effects.In reaching a recommendation in a particular case the above factors must be addressed, and it must be shown with reasonable certainty that recognised beneficial uses will not be disadvantaged. A strategy for reaching this position is outlined.


2019 ◽  
Vol 55 (27) ◽  
pp. 3903-3906 ◽  
Author(s):  
Qinghe Li ◽  
Feng Lin ◽  
Feng Liu ◽  
Xinchen Wang

The photocatalytic reduction of carbon dioxide to carbon monoxide could be achieved through the use of a cobalt based heterogeneous cocatalyst constructed via an in situ electrostatic adsorption deposition method.


Nano Energy ◽  
2020 ◽  
Vol 76 ◽  
pp. 105059 ◽  
Author(s):  
Jia Yang ◽  
Zhiyuan Wang ◽  
Jianchao Jiang ◽  
Wenxing Chen ◽  
Fan Liao ◽  
...  

2015 ◽  
Vol 8 (8) ◽  
pp. 2330-2340 ◽  
Author(s):  
David J. Schiffrin

The environmental issues related to the proposed UCG-in situ CCS technique are analysed. The putative advantage of synthesising liquid fuels from the produced “syngas” would lead to greatly enhanced CO2 emissions.


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