Improved Photocatalytic Performance of the First Polyoxometalate Electron Acceptor-Modified Cu2ZnSnS4 Photocatalyst for Cr(VI) Reduction

2021 ◽  
Vol 95 (12) ◽  
pp. 2538-2543
Author(s):  
Xu Chen ◽  
Pengyan Wang ◽  
Tianqi Wang ◽  
Lin Xu
Keyword(s):  
Electron Acceptor ◽  
Photocatalytic Performance

scholarly journals The enhancement of photocatalytic performance of SrTiO3 nanoparticles via combining with carbon quantum dots

RSC Advances ◽  
2018 ◽  
Vol 8 (36) ◽  
pp. 20157-20165 ◽  
Author(s):  
Haitao Ren ◽  
Lin Ge ◽  
Qian Guo ◽  
Lu Li ◽  
Guangkuo Hu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Electron Acceptor ◽  
Photocatalytic Performance ◽  
Carbon Quantum Dots ◽  
Efficient Separation

The introduction of the CQDs (electron acceptor) to the SrTiO3 nanoparticles will facilitate the efficient separation of photogenerated e−–h+ pairs and thus enhance the photocatalytic performance.

Highly efficient and selective photocatalytic CO2 to CO conversion in aqueous solution

2020 ◽  
Vol 56 (27) ◽  
pp. 3851-3854 ◽  
Author(s):  
Xiaomin Chai ◽  
Hai-Hua Huang ◽  
Huiping Liu ◽  
Zhuofeng Ke ◽  
Wen-Wen Yong ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Photocatalytic Performance ◽  
Aqueous Media ◽  
Highly Efficient ◽  
Co Conversion

A Co-based complex displayed the highest photocatalytic performance for CO2 to CO conversion in aqueous media.

Fabrication and photocatalytic performance of Bi 24 O 31 Br 10 nanosphere by a polyacrylamide gel method

2020 ◽  
Vol 15 (8) ◽  
pp. 499-502 ◽  
Author(s):  
Zuming He ◽  
Jiangbin Su ◽  
Yongmei Xia ◽  
Bin Tang
Keyword(s):  
Photocatalytic Performance ◽  
Polyacrylamide Gel ◽  
Gel Method ◽  
Polyacrylamide Gel Method ◽  
O 31

The influence of potassium dichromate on dissimilatory reduction of sulfate and nitrate ions by bacteria Desulfovibrio sp.

2017 ◽  
Vol 28 (1-2) ◽  
pp. 84-95
Author(s):  
O. M. Moroz ◽  
S. O. Hnatush ◽  
Ch. I. Bohoslavets ◽  
T. M. Hrytsun’ ◽  
B. M. Borsukevych
Keyword(s):  
Electron Acceptor ◽  
Potassium Dichromate ◽  
Anaerobic Respiration ◽  
Sulfate Reducing Bacteria ◽  
Negative Influence ◽  
Electron Acceptors ◽  
Metal Compounds ◽  
Nitrate Ions ◽  
Sulfate Reducing ◽  
Reducing Bacteria

Sulfate reducing bacteria, capable to reductive transformation of different nature pollutants, used in biotechnologies of purification of sewage, contaminated by carbon, sulfur, nitrogen and metal compounds. H2S formed by them sediment metals to form of insoluble sulfides. Number of metals can be used by these microorganisms as electron acceptors during anaerobic respiration. Because under the influence of metal compounds observed slowing of bacteria metabolism, selection isolated from technologically modified ecotops resistant to pollutions strains is important task to create a new biotechnologies of purification. That’s why the purpose of this work was to study the influence of potassium dichromate, present in medium, on reduction of sulfate and nitrate ions by sulfate reducing bacteria Desulfovibrio desulfuricans IMV K-6, Desulfovibrio sp. Yav-6 and Desulfovibrio sp. Yav-8, isolated from Yavorivske Lake, to estimate the efficiency of possible usage of these bacteria in technologies of complex purification of environment from dangerous pollutants. Bacteria were cultivated in modified Kravtsov-Sorokin medium without SO42- and FeCl2×4H2O for 10 days. To study the influence of K2Cr2O7 on usage by bacteria SO42- or NO3- cells were seeded to media with Na2SO4×10H2O or NaNO3 and K2Cr2O7 at concentrations of 1.74 mM for total content of electron acceptors in medium 3.47 mM (concentration of SO42- in medium of standard composition). Cells were also seeded to media with 3.47 mM Na2SO4×10H2O, NaNO3 or K2Cr2O7 to investigate their growth in media with SO42-, NO3- or Cr2O72- as sole electron acceptor (control). Biomass was determined by turbidymetric method, content of sulfate, nitrate, dichromate, chromium (III) ions, hydrogen sulfide or ammonia ions in cultural liquid – by spectrophotometric method. It was found that K2Cr2O7 inhibits growth (2.2 and 1.3 times) and level of reduction by bacteria sulfate or nitrate ions (4.2 and 3.0 times, respectively) at simultaneous addition into cultivation medium of 1.74 mM SO42- or NO3- and 1.74 mM Cr2O72-, compared with growth and level of reduction of sulfate or nitrate ions in medium only with SO42- or NO3- as sole electron acceptor. Revealed that during cultivation of bacteria in presence of equimolar amount of SO42- or NO3- and Cr2O72-, last used by bacteria faster, content of Cr3+ during whole period of bacteria cultivation exceeded content H2S or NH4+. K2Cr2O7 in medium has most negative influence on dissimilatory reduction by bacteria SO42- than NO3-, since level of nitrate ions reduction by cells in medium with NO3- and Cr2O72- was a half times higher than level of sulfate ions reduction by it in medium with SO42- and Cr2O72-. The ability of bacteria Desulfovibrio sp. to priority reduction of Cr2O72- and after their exhaustion − NO3- and SO42- in the processes of anaerobic respiration can be used in technologies of complex purification of environment from toxic compounds.

Hydrothermal/Solvothermal Synthesis and Photocatalytic Performance of ZnS Microspheres

2016 ◽  
Vol 31 (5) ◽  
pp. 473 ◽  
Author(s):  
WU Xuan-Rong ◽  
YANG Qiao-Zhen ◽  
ZHAO Yong-Xiang ◽  
LU Yan-Luo
Keyword(s):  
Solvothermal Synthesis ◽  
Photocatalytic Performance

Preparation by Grinding-calcination and Photocatalytic Performance of La$lt;inf$gt;2$lt;/inf$gt;O$lt;inf$gt;3$lt;/inf$gt;/BiOCl Composite Photocatalysts

2015 ◽  
Vol 30 (9) ◽  
pp. 943 ◽  
Author(s):  
CHEN Jian-Chai ◽  
YU Chang-Lin ◽  
LI Jia-De ◽  
FANG Wen ◽  
HE Hong-Bo
Keyword(s):  
Photocatalytic Performance ◽  
Composite Photocatalysts

Study of the Photocatalytic Performance of Oxygen-deficient TiO2 Active in Visi-ble Light

2013 ◽  
Vol 27 (12) ◽  
pp. 1301-1305 ◽  
Author(s):  
Xiao-Xin CAO ◽  
Yi-Lin CHEN ◽  
Bi-Zhou LIN ◽  
Bi-Fen GAO
Keyword(s):  
Photocatalytic Performance
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