Journal ArticleDOI
Photocatalytic reduction of nitrite on CdS
TLDR
In this article, the photoefficiency for the photocatalytic reduction of nitrite to ammonia using sodium sulphate and sodium sulphite as sacrificial agents was found to be 2.6%.Abstract:
CdS catalysts, prepared using difference precursors, were characterized and tested for the photocatalytic reduction of nitrite to ammonia using sodium sulphate and sodium sulphite as sacrificial agents. The catalyst prepared from cadmium nitrate and sodium sulphide and treated at 623 K showed maximum activity. The activity was enhanced by loading with noble metals, such as Ru, Pd or Ir, or by the use of hole transferring agents, such as RuO2. The photoefficiency for the photocatalytic reduction of nitrite to ammonia was found to be 2.6%.read more
Citations
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High photocatalytic activity and selectivity for nitrogen in nitrate reduction on Ag/TiO2 catalyst with fine silver clusters
TL;DR: In this paper, an Ag/TiO2 catalyst with fine size and homogeneous dispersion of coated silver clusters was synthesized by a recently developed pH-controlled photocatalytic process.
Journal ArticleDOI
Synthesis, characterization and photocatalytic properties of iron-doped TiO2 catalysts
TL;DR: In this paper, the photocatalytic activity of the iron-doped catalysts can be explained in terms of the heterojunction formed between the Fe/TiO2 and α-Fe2O3 phases for the sol-gel-derived catalyst.
Journal ArticleDOI
Photocatalytic nitrate reduction in water: Managing the hole scavenger and reaction by-product selectivity
TL;DR: In this paper, the effects of experimental conditions and the mechanisms involved were examined using titanium dioxide (Evonik P90) loaded with silver nanoparticles and formate as a hole scavenger (electron donor).
Journal ArticleDOI
Enhanced photocatalytic reduction reaction over Bi3+–TiO2 nanoparticles in presence of formic acid as a hole scavenger
S. Rengaraj,Xiang-zhong Li +1 more
TL;DR: It was found that the optimal dosage of 1.5wt% Bi(3+) in TiO(2) achieved the fastest reaction of nitrate reduction under the experimental condition, and better separation of electrons and holes on the modified TiO (2) surface allows more efficient channeling of the charge carriers into useful reduction and oxidation reactions rather than recombination reactions.
Journal ArticleDOI
Photocatalytic reduction of nitrite and nitrate ions to ammonia on M/TiO2 catalysts
TL;DR: In this paper, the yield of ammonia was found to depend on the nature, amount of metal and the method of metallization, and an optimum metal content is beneficial for the activity.
References
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Journal ArticleDOI
Spectrophotometric Method for Determination of Hydrazine
G. W. Watt,J. D. Chrisp +1 more
Journal ArticleDOI
Photocatalytic decomposition of water and photocatalytic reduction of carbon dioxide over zirconia catalyst
K. Sayama,H. Arakawa +1 more
TL;DR: In this article, it was shown that the photocatalytic decomposition of pure water over ZrO[sub 2] powder without any loaded metals under UV irradiation can be achieved without the use of any loaded metal.
Journal ArticleDOI
Photochemical hydrogen production with cadmium sulfide suspensions
TL;DR: In this article, photoetching of CdS microcrystals has been used to improve the efficiency of photochemical hydrogen production by irradiating suspensions of platinized cdS in various electrolyte solutions.