Regulating TiO2/MXenes Catalysts to Promote Photocatalytic Performance of Highly Selective Oxidation of D-Xylose

2021 ◽  
Author(s):  
Liang Chen ◽  
Yiming Huang ◽  
Zou Ren ◽  
Jiliang Ma ◽  
Yunyi Yang ◽  
...  
Keyword(s):  
Selective Oxidation ◽  
Photocatalytic Performance ◽  
Photocatalytic Process ◽  
Xylonic Acid ◽  
Chemical Feedstock

Synthesis of D-xylonic acid, a high value chemical feedstock, from biomass chemicals through photocatalytic process is of great significance in respect of economical and sustainable concerns, and therefore aroused much...

Nano-ZnO Photocatalytic Kinetics Based on Photo-Layer Model

2012 ◽  
Vol 550-553 ◽  
pp. 2819-2823
Author(s):  
Hang Xu ◽  
Min Yue Li
Keyword(s):  
Methylene Blue ◽  
Photocatalytic Performance ◽  
Photocatalytic Process ◽  
Layer Model ◽  
Nano Zno ◽  
Photo Catalyst ◽  
Zno Powders ◽  
Control Step ◽  
Air Lift ◽  
Crude Material

Nano-ZnO powders were prepared through gel-sol method with zinc acetate and lithium hydroxide as crude material. Nano-ZnO, as photo-catalyst, was used to decompose Methylene Blue at air lift circulating reactor and Photo-Layer model to describe photocatalytic kinetics. The results show that nano-ZnO has a integrate crystal and its size is 6.6nm with the best photocatalytic performance, when calcined at 350oC. The best ZnO dosage is 0.1g/L with 97% Methylene Blue removal after 30min. The photocatalytic process was the control step in chemical reaction. The •OH concentration inside the photo-layer in different reaction condition were calculated according to Photo-Layer model.

scholarly journals Fabrication of La2O3/g-C3N4 Heterojunction with Enhanced Photocatalytic Performance of Tetracycline Hydrochloride

Crystals ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1349
Author(s):  
Zhengru Zhu ◽  
Haiwen Xia ◽  
Rina Wu ◽  
Yongqiang Cao ◽  
Hong Li
Keyword(s):  
Hydroxyl Radicals ◽  
Degradation Rate ◽  
Photocatalytic Performance ◽  
Superoxide Radical ◽  
Active Species ◽  
Tetracycline Hydrochloride ◽  
Radical Anions ◽  
Photocatalytic Process ◽  
Composite Photocatalysts ◽  
Ultrasound Assisted

In this study, La2O3/g-C3N4 heterojunction photocatalysts doped with different dosages of La2O3 were constructed by a facile ultrasound-assisted calcination approach. The as-prepared photocatalysts were characterized by XRD, FTIR, FESEM, TEM, XPS, PL and DRS to verify the composite photocatalysts’ purity and to investigate their structural, morphological and elemental composition, and their energy band. According to the results, a type of pure rod–sheet-shaped, heterostructured nanoparticle was successfully obtained. Decorated with 10% La2O3, 2 g/L of the composite sample had a 93% degradation rate for 20 mg/L tetracycline hydrochloride within 2 h under visible light at a pH of 7. After four successive photocatalytic runs, satisfactory stability and reusability was exhibited, with 70% of the tetracycline hydrochloride being removed in the final experiment. Electrons (e−), photogenerated holes (h+), superoxide radical anions (O2−) and hydroxyl radicals (OH) were the fundamental active species during the photocatalytic process and were investigated via quenching experiments. Furthermore, possible photocatalytic mechanisms were analyzed in this work.

scholarly journals Phosphorus-doped carbon nitride with grafted sulfonic acid groups for efficient photocatalytic synthesis of xylonic acid

2021 ◽  
Author(s):  
Jiliang Ma ◽  
Dongnv Jin ◽  
Xiaopan Yang ◽  
Shaolong Sun ◽  
Jinghui Zhou ◽  
...  
Keyword(s):  
Organic Acids ◽  
Selective Oxidation ◽  
Sulfonic Acid ◽  
Carbon Nitride ◽  
Xylonic Acid ◽  
Phosphorus Doped ◽  
Sulfonic Acid Groups ◽  
Photocatalytic Synthesis

The photocatalytic selective oxidation of biomass-derived feedstocks to high-valued organic acids is promising and challenging, especially for the production of xylonic acid. Herein, a novel phosphorus-doped carbon nitride with grafted...

Boosting photocatalytic performance for selective oxidation of biomass-derived pentoses and hexoses to lactic acid using hierarchically porous Cu/Cu2O/CuO@CA

2021 ◽  
Author(s):  
Dongnv Jin ◽  
Gaojie Jiao ◽  
Wenfeng Ren ◽  
Jinghui Zhou ◽  
Jiliang Ma ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Selective Oxidation ◽  
Photocatalytic Performance ◽  
Value Added ◽  
Environmentally Friendly ◽  
Cost Effective ◽  
Hierarchically Porous ◽  
Limited Success

Photocatalytic-reforming of biomass-derived feedstocks to high-value added chemicals is highly desired, yet limited success has been achieved. To this aim, the development of an efficient, cost-effective, and environmentally friendly photocatalyst...

The first synthesis of Bi self-doped Bi2MoO6–Bi2Mo3O12 composites and their excellent photocatalytic performance for selective oxidation of aromatic alkanes under visible light irradiation

2017 ◽  
Vol 53 (48) ◽  
pp. 6480-6483 ◽  
Author(s):  
Lu-Na Song ◽  
Lang Chen ◽  
Jie He ◽  
Peng Chen ◽  
Huang-Kai Zeng ◽  
...  
Keyword(s):  
Visible Light ◽  
Selective Oxidation ◽  
Visible Light Irradiation ◽  
Photocatalytic Performance ◽  
Light Irradiation ◽  
Step Method ◽  
One Step

Bi self-doped Bi2MoO6–Bi2Mo3O12 composites were first synthesized by a one-step method and they showed excellent photocatalytic performance in the selective oxidation of aromatic alkanes under visible light irradiation.

Photochemical synthesis of CdS-MIL-125(Ti) with enhanced visible light photocatalytic performance for the selective oxidation of benzyl alcohol to benzaldehyde

2017 ◽  
Vol 16 (6) ◽  
pp. 996-1002 ◽  
Author(s):  
Rui Zhang ◽  
Gang Li ◽  
Yue Zhang
Keyword(s):  
Visible Light ◽  
Benzyl Alcohol ◽  
Selective Oxidation ◽  
Photocatalytic Performance ◽  
Photochemical Synthesis ◽  
Oxidation Of Benzyl Alcohol ◽  
Photochemical Method ◽  
Visible Light Photocatalytic

CdS-MIL-125(Ti) was synthesized via a photochemical method and applied as a catalyst in the selective oxidation of benzyl alcohol to benzaldehyde.

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